ClinicalTrials.gg
CompletedNCT03258710Updated Aug 4, 2020Results posted

A Study of Switching From Entecavir to Tenofovir Disoproxil Fumarate in Subjects With Chronic Hepatitis B

A Phase 4 interventional study of Tenofovir Disoproxil Fumarate in Hepatitis B, Chronic, sponsored by GlaxoSmithKline. Completed at 18 sites in Japan. Open to participants aged 20 Years to 69 Years. Per ClinicalTrials.gov, last updated 2020-08-04.

Sponsored by GlaxoSmithKline · Phase 4, Interventional, and Treatment

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Phase
Phase 4
Study type
Interventional
Enrollment
75
Allocation
Not applicable
Ages
20 Years to 69 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 50 studies testing tenofovir in Hepatitis B, Chronic — none open to participants now, 1 under way, 1 of them phase 3. Tenofovir · Hepatitis B, Chronic.

Enrollment
37th of 50
75 · median 117
Started
2017
with 4 others
Phase 4
22 of 50
none open now
Registered
43rd of 50
by date
Lead sponsor
7 of 50
GlaxoSmithKline

Among the 50 studies testing tenofovir in Hepatitis B, Chronic, this one is the 37th largest by enrollment, is one of 5 that started in 2017, is one of 22 in phase 4, and was the 43rd registered.

Hepatitis B, Chronic

896 studies on the registry are indexed under Hepatitis B, Chronic; 153 are open to participants now.

Browse Hepatitis B, Chronic studies →

Open to participants now

None of the 50 studies testing tenofovir in Hepatitis B, Chronic is open now. The open studies under Hepatitis B, Chronic, anywhere →

About tenofovir

Tenofovir: first FDA approval 2001 (VIREAD), first EMA approval 2002. What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 97 Hepatitis B, Chronic studies recruiting now, 33 (34%) set no upper age limit and 59 (61%) stop at 75 or younger; 11 take children under 18; 13 take healthy volunteers.

This study: 20 Years to 69 Years · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Download CSVNarrow it in search →With an account: the 50 studies testing tenofovir in Hepatitis B, Chronic as a file.
02

Study summary

Tenofovir Disoproxil Fumarate is a nucleos(t)ide analogue that inhibits Hepatitis B Virus (HBV) growth, and is marketed in Japan with an indication for inhibition of HBV growth in subjects with chronic hepatitis B associated with HBV growth and abnormal liver function. This study has been planned to evaluate the virological effects and safety of switching from ETV to TDF in chronic hepatitis B (hepatitis B e-antigen [HBeAg])-positive and HBV- deoxyribonucleic acid (DNA) undetectable subjects. This study is designed as a multi-center, one-arm, post-marketing clinical study to investigate the HBsAg reduction in subjects who have not achieved the long-term goal, the loss of hepatitis B surface antigen (HBsAg). The study will be conducted in HBeAg-positive and HBV-DNA undetectable subjects treated with ETV. After switching ETV to TDF, TDF will be administered for 96 weeks. Approximately 80 subjects will be screened to achieve 65 evaluable subjects.

03

Conditions studied

  • Hepatitis B, Chronic

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Keywords

  • Tenofovir Disoproxil Fumarate
  • safety
  • chronic hepatitis B
  • virological effect
04

Who can participate

Ages eligible
20 Years to 69 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Subjects must be 20 to 69 years of age inclusive, at the time of signing the
  • Male and female subjects. A female subject is eligible to participate if she is not pregnant and not breastfeeding, and at least one of the following conditions applies:

    • Not a woman of (WOCBP), OR
    • A WOCBP who agrees to follow the guidance during the treatment period and for at least 4 days after the last dose of study treatment
  • Capable of giving signed informed consent form (ICF)
  • Subjects with chronic (CHB) (excluding hospitalized subjects)
  • Subjects treated with ETV for at least 2 years prior to initiation of study treatment.
  • The serum HBV-DNA level at screening is below the limit of quantitation (\< 2.1 Log10 copies/milliliter [mL] or \< 20 international unit [IU]/mL).
  • Subjects with serum HBeAg positive at screening
  • Meet either of the following serum HBsAg levels at screening:

    • Serum HBsAg 80 \< to \< 800 IU/mL and fluctuation range is equal or more than -0.1 Log10 IU/mL per year
    • Serum HBsAg >=800 IU/mL
  • Meet all of the following criteria at screening:

    • (CLcr) >=70 mL/minute. CLcr is calculated using the following Cockcroft-Gault formula.

Male: CLcr = (body weight in kilogram [kg] multiplied by [140 minus age in years]) divided by (72 multiplied by serum creatinine [milligram {mg}/deciliter {dL}]) Female: CLcr = CLcr (male) multiplied by 0.85

  • >= 8 gram/dL
  • WBC >=1000 per cubic millimeter (mm\^3)

Exclusion criteria

Exclusion Criteria:

  • > 450 millisecond (msec) or > 480 msec for subjects with bundle branch block
  • Received any interferon or vaccine therapy within 24 weeks prior to initiation of the study treatment.
  • Received overdose of nonsteroidal anti-inflammatory drugs (NSAIDs) (excluding temporary or topical use) within 7 days prior to initiation of the study treatment.
  • Received any of the following drugs within 8 weeks prior to initiation of the study treatment (excluding topical products such as ointment and/or cream etc).

    • Drugs causing renal impairment (examples: aminoglycosides, amphotericin B, vancomycin, foscarnet, cisplatin, pentamidine, tacrolimus, cyclosporine, some contrast mediums [ionic high-osmolar contrast media, ionic low-osmolar contrast media]
    • Competitors of renal excretion (except temporary use, example: probenecid)
    • (examples: azathioprine, cycolphosphamide) or chemotherapeutics (example: etoposide)
    • preparation
  • Received TDF, Adefovir pivoxil (ADV) or Tenofovir Alafenamide Fumarate (TAF) within 2 years prior to initiation of the study treatment
  • Participation in another clinical study within 6 months prior to screening, or planned participation in another clinical study simultaneously with this study.
  • Co-infection with (HIV) or virus (HCV)
  • Subjects with serious complication other than compensated CHB (cancer, significant renal, cardiovascular, pulmonary, or neurological disease, uncontrollable diabetes, etc.)
  • Received or have a plan for solid organ or bone marrow transplantation
  • Has proximal tubulopathy.
  • Subjects with decompensated CHB who meet the following: direct > 1.5 times (ULN), (PT) \< 60%, \< 75,000/mm3 and serum albumin \< 3.0 g/dL
  • hepatitis (Antinuclear titer > 1:160), excluding CHB
  • Subjects with or suspected of having hepatocellular carcinoma (HCC) (including both primary and ) from diagnostic imaging at screening, or with serum alpha-fetoprotein (AFP) > 50 nanogram (ng)/mL at screening
  • History of HCC (except subjects who underwent resection or received curative treatment by radiofrequency, and with AFP \<=10 ng/mL at screening)
  • Woman who is pregnant, possibly pregnant, lactating or planning a pregnancy during the study period.
  • Psychiatry disorder or cognitive disorder that may affect the subject's ability to give or to follow specified study procedures.
  • Subjects with a history of alcohol or drug abuse
  • Subjects whom the investigator (or sub-investigator) considers ineligible for the study.
  • Subjects with to study treatments or their components, nucleoside and/or nucleotide analogues. Subjects with drug allergy that, in the investigator's (sub-investigator's) [or medical monitor's] opinion, labeled for participation in the study, or other allergy.
Terms in these criteria, in plain language(19)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
75 participants (actual)

Study arms

  • Experimental
    All subjects treated with Tenofovir Disoproxil Fumarate

    Subjects with on-going ETV treatment will be switched to Tenofovir Disoproxil Fumarate treatment. Subjects will start TDF on the day ETV is discontinued, without having overlapping treatment periods. All subjects will receive one tablet of TDF 300 mg once daily orally for 96 weeks.

    Drug: Tenofovir Disoproxil Fumarate

Interventions

  • Tenofovir Disoproxil Fumarate is a nucleos(t)ide analogue that inhibits HBV growth. All subjects will receive one tablet of TDF 300 mg once daily orally for 96 weeks.

06

What researchers measure

Primary outcomes

  1. Percentage of Participants Who Achieved 0.25 Logarithm to the Base 10 (Log10) Hepatitis B Surface Antigen (HBsAg) Reduction From the Baseline at Week 48

    Blood samples were collected to evaluate the HBsAg reduction from Baseline at Week 48. HBsAg reduction potential was obtained by evaluating log10 observation values minus log10 Baseline values. The HBsAg responder values were\<=-0.25 log10 and non-responder values were \>-0.25 log10 . Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Full analysis set (FAS) Population is defined as population of all participants enrolled in the study, excluding those who meet either of the following criteria: who have not received any dose of study treatment and who have no efficacy data (HBsAg, HBV-DNA, hepatitis B core-related antigen \[HBcrAg\], HBeAg, hepatitis B surface antibody \[HBsAb\],Hepatitis B envelope antibody \[HBeAb\], alanine aminotransferase \[ALT\]) from at least 15 days after the start of study treatment. Data for HBsAg responders have been presented.

    Time frame: Baseline (Day 1, Pre-dose) and at Week 48

Secondary outcomes

  1. Percentage of Participants Who Achieved 0.25 Log10 HBsAg Reduction From the Baseline at Weeks 24 and 96

    Blood samples were collected to evaluate the HBsAg reduction potential from Baseline at Weeks 24 and 96. HBsAg reduction potential was obtained by evaluating log10 observation values minus log10 Baseline values. Data for HBsAg responders have been presented. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 24 and 96

  2. Percentage of Participants Who Achieved HBsAg Loss at Weeks 24, 48 and 96

    Blood samples were collected to evaluate the percentage of participants with HBsAg loss at Weeks 24, 48 and 96. A 'Loss' of HBsAg means antigen is negative. HBsAg loss percentage is defined as number of participants with HBsAg loss divided by number of participants with positive HBsAg at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: At Weeks 24, 48 and 96

  3. Percentage of Participants Who Achieved HBsAg/Ab Seroconversion at Weeks 24, 48 and 96

    Blood samples were collected to evaluate the percentage of participants who achieved HBsAg/Ab seroconversion at Weeks 24, 48 and 96. Seroconversion of HBsAg means antigen is negative and antibody is positive. HBsAg Seroconversion percentage is defined as number of participants with HBsAg/Ab Seroconversion divided by number of participants with positive HBsAg and Negative HBsAb at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: At Weeks 24, 48 and 96

  4. Percentage of Participants Who Achieved HBeAg Loss at Weeks 24, 48 and 96

    Blood samples were collected to evaluate the percentage of participants with HBeAg loss at Weeks 24, 48 and 96. A 'Loss' of HBeAg means antigen is negative. HBeAg Loss percentage is defined as number of participants with HBeAg loss divided by number of participants with positive HBeAg at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: At Weeks 24, 48 and 96

  5. Percentage of Participants Who Achieved HBeAg/Ab Seroconversion at Weeks 24, 48 and 96

    Blood samples were collected to evaluate the percentage of participants who achieved HBeAg/Ab seroconversion at Weeks 24, 48 and 96. Seroconversion of HBeAg means antigen is negative and antibody is positive. HBeAg Seroconversion percentage is defined as number of participants with HBeAg/Ab Seroconversion divided by number of participants with positive HBeAg and Negative HBeAb at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: At Weeks 24, 48 and 96

  6. Change From Baseline Log Values for HBsAg Titer at Weeks 24, 48 and 96

    Blood samples were collected to evaluate the HBsAg titer at Weeks 24, 48 and 96. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 24, 48 and 96

  7. Change From Baseline Log Values for HBcrAg Titer at Weeks 24, 48 and 96

    Blood samples were collected to evaluate the HBcrAg titer at Weeks 24, 48 and 96. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 24, 48 and 96

  8. Number of Participants Who Reported Serious Adverse Events (SAEs) and Non-serious Adverse Events (Non-SAEs)

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. A SAE is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect, associated with liver injury and impaired liver function or any other situations as per medical or scientific judgement. Safety Population consists of participants who have received at least one dose of study treatment after enrolment.

    Time frame: Up to Week 96

  9. Absolute Values for Clinical Chemistry Parameter: Alpha-fetoprotein (AFP)

    Blood samples were collected for the analysis of clinical chemistry parameter, AFP. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  10. Absolute Values for Clinical Chemistry Parameters: Albumin and Total Protein

    Blood samples were collected for the analysis of clinical chemistry parameters: albumin and total protein. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  11. Absolute Values for Clinical Chemistry Parameters: Alkaline Phosphate (ALP), Alanine Amino Transferase (ALT), Aspartate Amino Transferase (AST), Creatinine Kinase (CPK), Gamma Glutamyl Transferase (GGT) and Lactate Dehydrogenase (LDH)

    Blood samples were collected for the analysis of clinical chemistry parameters: ALP, ALT, AST, CPK, GGT and LDH. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  12. Absolute Values for Clinical Chemistry Parameters: Amylase and Lipase

    Blood samples were collected for the analysis of clinical chemistry parameters: amylase and lipase. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  13. Absolute Values for Clinical Chemistry Parameters: Direct Bilirubin, Total Bilirubin, Creatinine and Uric Acid

    Blood samples were collected for the analysis of clinical chemistry parameters: direct bilirubin, total bilirubin, creatinine and uric acid. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  14. Absolute Values for Clinical Chemistry Parameters: Calcium, Chloride, Glucose, Potassium, Lactic Acid, Sodium, Phosphorus and Blood Urea Nitrogen (BUN)

    Blood samples were collected for the analysis of clinical chemistry parameters: calcium, chloride, glucose, potassium, lactic acid, sodium, phosphorus inorganic and BUN. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  15. Absolute Values for Clinical Chemistry Parameter: Creatinine Clearance

    Blood samples were collected for the analysis of clinical chemistry parameter, creatinine clearance. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  16. Absolute Values for Clinical Chemistry Parameter: Glomerular Filtration Rate (GFR)

    Blood samples were collected for the analysis of clinical chemistry parameter, GFR. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  17. Percentage of Basophils at Indicated Time Points

    Blood samples were collected for the analysis of hematology parameter: basophils. Mean and standard deviation values for percentage of basophils reported was presented.

    Time frame: At Weeks 36, 48, 60, 72, 84 and 96

  18. Percentage of Eosinophils at Indicated Time Points

    Blood samples were collected for the analysis of hematology parameter: eosinophils. Mean and standard deviation values for percentage of eosinophils reported was presented.

    Time frame: At Weeks 36 , 48, 60, 72, 84 and 96

  19. Percentage of Lymphocytes at Indicated Time Points

    Blood samples were collected for the analysis of hematology parameter: lymphocytes. Mean and standard deviation values for percentage of lymphocytes reported was presented.

    Time frame: At Weeks 36, 48, 60, 72, 84 and 96

  20. Percentage of Monocytes at Indicated Time Points

    Blood samples were collected for the analysis of hematology parameter: monocytes. Mean and standard deviation values for percentage of monocytes reported was presented.

    Time frame: At Weeks 36, 48, 60, 72, 84 and 96

  21. Percentage of Total Neutrophils at Indicated Time Points

    Blood samples were collected for the analysis of hematology parameter: total neutrophils. Mean and standard deviation values for percentage of neutrophils reported was presented.

    Time frame: At Weeks 36, 48, 60, 72, 84 and 96

  22. Absolute Values for Hematology Parameter: Hemoglobin

    Blood samples were collected for the analysis of hematology parameter, hemoglobin. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  23. Absolute Values for Hematology Parameter: Hematocrit

    Blood samples were collected for the analysis of hematology parameter, hematocrit. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  24. Absolute Values for Hematology Parameters: Platelet Count and White Blood Cell (WBC) Count

    Blood samples were collected for the analysis of hematology parameters: platelet count and WBC count. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  25. Absolute Values for Hematology Parameter: Prothrombin Time

    Blood samples were collected for the analysis of hematology parameter, prothrombin time. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  26. Absolute Values for Hematology Parameter: Red Blood Cell (RBC) Count

    Blood samples were collected for the analysis of hematology parameter, RBC count. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  27. Number of Participants With Abnormal Urinalysis Values at Weeks 4, 12, 24, 36 and 48

    Urine samples were collected for analysis of urinalysis data for glucose, protein and urinary sediment by dipstick method. The urine sediments analyzed were amorphous phosphate crystals, amorphous urate crystals, bacteria, calcium oxalate crystals, ammonium magnesium phosphate, renal tubular epithelial cells (RTEC), fungi, hyaline casts, mucous threads, RBCs, spermatozoa, squamous epithelial cells (SEC), transitional epithelial cells (TEC), uric acid crystals (UAC) and WBCs. The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameters can be read as Trace, 1+, 2+ and 3+, indicating proportional concentrations in the urine sample. Results for RTEC, hyaline casts, RBC, SEC, TEC and WBC can be read as counts per field (some/ every/ whole field). Only abnormal parameters and participants with abnormal data has been reported.

    Time frame: Weeks 4, 12, 24, 36 and 48

  28. Number of Participants With Abnormal Urinalysis Values at Weeks 60, 72, 84 and 96

    Urine samples were collected for analysis of urinalysis data for glucose, protein and urinary sediment by dipstick method. The urine sediments analyzed were amorphous phosphate crystals, amorphous urate crystals, bacteria, calcium oxalate crystals, ammonium magnesium phosphate, renal tubular epithelial cells (RTEC), fungi, hyaline casts, mucous threads, RBCs, spermatozoa, squamous epithelial cells (SEC), transitional epithelial cells (TEC), uric acid crystals (UAC) and WBCs. The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameters can be read as Trace, 1+, 2+ and 3+, indicating proportional concentrations in the urine sample. Results for RTEC, hyaline casts, RBC, SEC, TEC and WBC can be read as counts per field (some/ every/ whole field). Only abnormal parameters and participants with abnormal data has been reported.

    Time frame: Weeks 60, 72, 84 and 96

  29. Change From Baseline Values for Beta-2-microglobulin

    Urine samples were collected for analysis of urinalysis data for beta-2-microglobulin. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  30. Change From Baseline Values for Urine Creatinine Concentration and Urine Phosphate

    Urine samples were collected for analysis of urinalysis data for urine creatinine concentration and urine phosphate. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  31. Absolute Values for Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)

    Blood pressure of participants were measured at indicated time points in supine position after 5 minutes rest. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  32. Absolute Values for Heart Rate

    Heart rate of participants were measured at indicated time points in supine position after 5 minutes rest. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  33. Absolute Values for Temperature

    Temperature of participants were measured at indicated time points in supine position after 5 minutes rest. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

    Time frame: Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96

  34. Number of Participants With Worst Case Post-Baseline Electrocardiogram (ECG) Values

    Twelve-lead ECG was obtained using an ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, and corrected QT (QTc) intervals. Abnormal values with clinically significant and not clinically significant values has been presented. Clinically significant abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition.

    Time frame: Up to Week 96

  35. Change From Baseline Values for Bone Density

    Bone densitometry was performed on lumbar spine and femur using dual-energy X-ray absorptiometry (DEXA). Bone density percentage was calculated as bone density observation minus bone density Baseline divided by bone density Baseline. Baseline was considered as Day -1. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

    Time frame: Baseline (Day -1) and at Weeks 24, 48, 72 and 96

07

Results

Posted Jan 2, 2020

Participant flow

This was a multi-center, single-arm study to assess efficacy and safety of tenofovir disoproxil fumarate (TDF) by switching at Day 1 from entecavir hydrate (ETV) to TDF in chronic hepatitis B envelope antigen (HBeAg)-positive and hepatitis B virus-deoxyribonucleic acid (HBV-DNA) undetectable participants.

Participant flow — Overall Study
MilestoneTenofovir Disoproxil Fumarate
Started75
Completed72
Not completed3
Withdrew: Adverse event1
Withdrew: Protocol-defined stopping criteria1
Withdrew: Physician decision1

Outcome measures

PrimaryPercentage of Participants Who Achieved 0.25 Logarithm to the Base 10 (Log10) Hepatitis B Surface Antigen (HBsAg) Reduction From the Baseline at Week 48

Blood samples were collected to evaluate the HBsAg reduction from Baseline at Week 48. HBsAg reduction potential was obtained by evaluating log10 observation values minus log10 Baseline values. The HBsAg responder values were\<=-0.25 log10 and non-responder values were \>-0.25 log10 . Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Full analysis set (FAS) Population is defined as population of all participants enrolled in the study, excluding those who meet either of the following criteria: who have not received any dose of study treatment and who have no efficacy data (HBsAg, HBV-DNA, hepatitis B core-related antigen \[HBcrAg\], HBeAg, hepatitis B surface antibody \[HBsAb\],Hepatitis B envelope antibody \[HBeAb\], alanine aminotransferase \[ALT\]) from at least 15 days after the start of study treatment. Data for HBsAg responders have been presented.

Time frame:
Baseline (Day 1, Pre-dose) and at Week 48
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Achieved 0.25 Logarithm to the Base 10 (Log10) Hepatitis B Surface Antigen (HBsAg) Reduction From the Baseline at Week 48
Percentage of ParticipantsTenofovir Disoproxil Fumarate
<= -0.25 log104 (0.8 to 11.4)
> -0.25 log1096 (88.6 to 99.2)
SecondaryPercentage of Participants Who Achieved 0.25 Log10 HBsAg Reduction From the Baseline at Weeks 24 and 96

Blood samples were collected to evaluate the HBsAg reduction potential from Baseline at Weeks 24 and 96. HBsAg reduction potential was obtained by evaluating log10 observation values minus log10 Baseline values. Data for HBsAg responders have been presented. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 24 and 96
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Achieved 0.25 Log10 HBsAg Reduction From the Baseline at Weeks 24 and 96
Percentage of ParticipantsTenofovir Disoproxil Fumarate
Week 241 (0.0 to 7.3)
Week 9612 (5.7 to 21.8)
SecondaryPercentage of Participants Who Achieved HBsAg Loss at Weeks 24, 48 and 96

Blood samples were collected to evaluate the percentage of participants with HBsAg loss at Weeks 24, 48 and 96. A 'Loss' of HBsAg means antigen is negative. HBsAg loss percentage is defined as number of participants with HBsAg loss divided by number of participants with positive HBsAg at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
At Weeks 24, 48 and 96
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Achieved HBsAg Loss at Weeks 24, 48 and 96
Percentage of ParticipantsTenofovir Disoproxil Fumarate
Week 240
Week 480
Week 960
SecondaryPercentage of Participants Who Achieved HBsAg/Ab Seroconversion at Weeks 24, 48 and 96

Blood samples were collected to evaluate the percentage of participants who achieved HBsAg/Ab seroconversion at Weeks 24, 48 and 96. Seroconversion of HBsAg means antigen is negative and antibody is positive. HBsAg Seroconversion percentage is defined as number of participants with HBsAg/Ab Seroconversion divided by number of participants with positive HBsAg and Negative HBsAb at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
At Weeks 24, 48 and 96
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Achieved HBsAg/Ab Seroconversion at Weeks 24, 48 and 96
Percentage of ParticipantsTenofovir Disoproxil Fumarate
Week 240
Week 480
Week 960
SecondaryPercentage of Participants Who Achieved HBeAg Loss at Weeks 24, 48 and 96

Blood samples were collected to evaluate the percentage of participants with HBeAg loss at Weeks 24, 48 and 96. A 'Loss' of HBeAg means antigen is negative. HBeAg Loss percentage is defined as number of participants with HBeAg loss divided by number of participants with positive HBeAg at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
At Weeks 24, 48 and 96
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Achieved HBeAg Loss at Weeks 24, 48 and 96
Percentage of ParticipantsTenofovir Disoproxil Fumarate
Week 2412
Week 4812
Week 9625
SecondaryPercentage of Participants Who Achieved HBeAg/Ab Seroconversion at Weeks 24, 48 and 96

Blood samples were collected to evaluate the percentage of participants who achieved HBeAg/Ab seroconversion at Weeks 24, 48 and 96. Seroconversion of HBeAg means antigen is negative and antibody is positive. HBeAg Seroconversion percentage is defined as number of participants with HBeAg/Ab Seroconversion divided by number of participants with positive HBeAg and Negative HBeAb at Baseline. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
At Weeks 24, 48 and 96
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Achieved HBeAg/Ab Seroconversion at Weeks 24, 48 and 96
Percentage of ParticipantsTenofovir Disoproxil Fumarate
Week 248
Week 4813
Week 9625
SecondaryChange From Baseline Log Values for HBsAg Titer at Weeks 24, 48 and 96

Blood samples were collected to evaluate the HBsAg titer at Weeks 24, 48 and 96. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 24, 48 and 96
Reported as:
Mean · Log Kilo International Units per Liter
Change From Baseline Log Values for HBsAg Titer at Weeks 24, 48 and 96
Log Kilo International Units per LiterTenofovir Disoproxil Fumarate
Week 24, n=74-0.049 ± 0.0913
Week 48, n=73-0.114 ± 0.0837
Week 96, n=72-0.139 ± 0.1207
SecondaryChange From Baseline Log Values for HBcrAg Titer at Weeks 24, 48 and 96

Blood samples were collected to evaluate the HBcrAg titer at Weeks 24, 48 and 96. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 24, 48 and 96
Reported as:
Mean · Log Kilounits per Liter
Change From Baseline Log Values for HBcrAg Titer at Weeks 24, 48 and 96
Log Kilounits per LiterTenofovir Disoproxil Fumarate
Week 24, n=74-0.12 ± 0.232
Week 48, n=73-0.17 ± 0.286
Week 96, n=72-0.30 ± 0.360
SecondaryNumber of Participants Who Reported Serious Adverse Events (SAEs) and Non-serious Adverse Events (Non-SAEs)

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. A SAE is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect, associated with liver injury and impaired liver function or any other situations as per medical or scientific judgement. Safety Population consists of participants who have received at least one dose of study treatment after enrolment.

Time frame:
Up to Week 96
Reported as:
Count of participants · Participants
Number of Participants Who Reported Serious Adverse Events (SAEs) and Non-serious Adverse Events (Non-SAEs)
ParticipantsTenofovir Disoproxil Fumarate
Any SAE2
Any non-SAE36
SecondaryAbsolute Values for Clinical Chemistry Parameter: Alpha-fetoprotein (AFP)

Blood samples were collected for the analysis of clinical chemistry parameter, AFP. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Micrograms per liter
Absolute Values for Clinical Chemistry Parameter: Alpha-fetoprotein (AFP)
Micrograms per literTenofovir Disoproxil Fumarate
Baseline (Day 1), n=753.13 ± 1.474
Week 4, n=753.39 ± 1.507
Week 12, n=743.46 ± 1.642
Week 24, n=743.50 ± 1.597
Week 36, n=733.48 ± 1.578
Week 48, n=733.55 ± 1.693
Week 60, n=733.50 ± 1.683
Week 72, n=733.27 ± 1.499
Week 84, n=723.10 ± 1.478
Week 96, n=723.18 ± 1.537
SecondaryAbsolute Values for Clinical Chemistry Parameters: Albumin and Total Protein

Blood samples were collected for the analysis of clinical chemistry parameters: albumin and total protein. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Grams per liter
Absolute Values for Clinical Chemistry Parameters: Albumin and Total Protein
Grams per literTenofovir Disoproxil Fumarate
Albumin, Baseline (Day 1), n=7544.7 ± 2.60
Albumin, Week 4, n=7544.9 ± 2.21
Albumin, Week 12, n=7445.2 ± 2.17
Albumin, Week 24, n=7444.5 ± 2.18
Albumin, Week 36, n=7344.2 ± 2.11
Albumin, Week 48, n=7344.8 ± 2.20
Albumin, Week 60, n=7345.1 ± 1.88
Albumin, Week 72, n=7344.9 ± 2.14
Albumin, Week 84, n=7244.6 ± 2.05
Albumin, Week 96, n=7245.4 ± 2.26
Total protein, Baseline (Day 1) n=7572.4 ± 4.28
Total protein, Week 4, n=7572.6 ± 3.81
Total protein, Week 12, n=7473.1 ± 3.93
Total protein, Week 24, n=7472.0 ± 3.86
Total protein, Week 36, n=7371.7 ± 3.76
Total protein, Week 48, n=7372.6 ± 4.12
Total protein, Week 60, n=7372.8 ± 4.08
Total protein, Week 72, n=7372.4 ± 4.32
Total protein, Week 84, n=7272.4 ± 4.35
Total protein, Week 96, n=7273.0 ± 4.07
SecondaryAbsolute Values for Clinical Chemistry Parameters: Alkaline Phosphate (ALP), Alanine Amino Transferase (ALT), Aspartate Amino Transferase (AST), Creatinine Kinase (CPK), Gamma Glutamyl Transferase (GGT) and Lactate Dehydrogenase (LDH)

Blood samples were collected for the analysis of clinical chemistry parameters: ALP, ALT, AST, CPK, GGT and LDH. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · International units per liter
Absolute Values for Clinical Chemistry Parameters: Alkaline Phosphate (ALP), Alanine Amino Transferase (ALT), Aspartate Amino Transferase (AST), Creatinine Kinase (CPK), Gamma Glutamyl Transferase (GGT) and Lactate Dehydrogenase (LDH)
International units per literTenofovir Disoproxil Fumarate
ALP, Baseline (Day 1), n=75210.4 ± 62.87
ALP, Week 4, n=75227.6 ± 70.27
ALP, Week 12, n=74243.1 ± 76.26
ALP, Week 24, n=74242.1 ± 77.76
ALP, Week 36, n=73245.3 ± 75.15
ALP, Week 48, n=73249.4 ± 73.17
ALP, Week 60, n=73253.1 ± 75.62
ALP, Week 72, n=73249.2 ± 72.56
ALP, Week 84, n=72237.6 ± 69.60
ALP, Week 96, n=72237.7 ± 72.92
ALT, Baseline (Day 1), n=7523.5 ± 18.13
ALT, Week 4, n=7528.3 ± 19.82
ALT, Week 12, n=7427.9 ± 16.48
ALT, Week 24, n=7427.5 ± 19.09
ALT, Week 36, n=7325.9 ± 14.70
ALT, Week 48, n=7327.0 ± 13.14
ALT, Week 60, n=7326.6 ± 12.65
ALT, Week 72, n=7324.2 ± 9.16
ALT, Week 84, n=7226.3 ± 20.75
ALT, Week 96, n=7226.4 ± 25.60
AST, Baseline (Day 1), n=7522.7 ± 8.80
AST, Week 4, n=7526.1 ± 8.70
AST, Week 12, n=7425.8 ± 8.34
AST, Week 24, n=7425.5 ± 9.31
AST, Week 36, n=7324.6 ± 7.88
AST, Week 48, n=7325.7 ± 7.58
AST, Week 60, n=7325.1 ± 6.23
AST, Week 72, n=7324.1 ± 5.25
AST, Week 84, n=7225.0 ± 10.38
AST, Week 96, n=7224.9 ± 12.03
CPK, Baseline (Day 1), n=75138.9 ± 100.01
CPK, Week 4, n=75151.0 ± 113.92
CPK, Week 12, n=74144.5 ± 148.47
CPK, Week 24, n=74127.9 ± 56.20
CPK, Week 36, n=73131.9 ± 79.25
CPK, Week 48, n=73148.7 ± 106.89
CKP, Week 60, n=73134.1 ± 65.76
CKP, Week 72, n=73143.3 ± 81.86
CKP, Week 84, n=72127.4 ± 60.37
CKP, Week 96, n=72132.3 ± 67.94
GGT, Baseline (Day 1), n=7530.9 ± 24.23
GGT, Week 4, n=7531.6 ± 27.23
GGT, Week 12, n=7431.5 ± 31.14
GGT, Week 24, n=7430.4 ± 28.57
GGT, Week 36, n=7327.6 ± 24.30
GGT, Week 48, n=7327.8 ± 22.60
GGT, Week 60, n=7328.2 ± 24.67
GGT, Week 72, n=7325.6 ± 16.94
GGT, Week 84, n=7227.4 ± 25.22
GGT, Week 96, n=7227.8 ± 23.75
LDH, Baseline (Day 1), n=75165.2 ± 30.53
LDH, Week 4, n=75173.9 ± 35.23
LDH, Week 12, n=74171.0 ± 32.19
LDH, Week 24, n=74169.4 ± 28.94
LDH, Week 36, n=73170.3 ± 28.91
LDH, Week 48, n=73175.3 ± 33.33
LDH, Week 60, n=73174.4 ± 33.12
LDH, Week 72, n=73174.6 ± 32.97
LDH, Week 84, n=72172.7 ± 34.58
LDH, Week 96, n=72173.2 ± 34.08
SecondaryAbsolute Values for Clinical Chemistry Parameters: Amylase and Lipase

Blood samples were collected for the analysis of clinical chemistry parameters: amylase and lipase. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Units per liter
Absolute Values for Clinical Chemistry Parameters: Amylase and Lipase
Units per literTenofovir Disoproxil Fumarate
Amylase, Baseline (Day 1), n=7587.3 ± 26.00
Amylase, Week 4, n=7589.5 ± 24.99
Amylase, Week 12, n=7488.2 ± 26.21
Amylase, Week 24, n=7483.7 ± 23.30
Amylase, Week 36, n=7382.3 ± 24.29
Amylase, Week 48, n=7384.9 ± 26.08
Amylase, Week 60, n=7392.2 ± 32.20
Amylase, Week 72, n=7388.8 ± 27.87
Amylase, Week 84, n=7284.4 ± 24.93
Amylase, Week 96, n=7286.7 ± 32.31
Lipase, Baseline (Day 1), n=7540.0 ± 17.99
Lipase, Week 4, n=7541.9 ± 14.27
Lipase, Week 12, n=7439.1 ± 13.97
Lipase, Week 24, n=7436.0 ± 9.95
Lipase, Week 36, n=7336.9 ± 12.64
Lipase, Week 48, n=7336.2 ± 12.91
Lipase, Week 60, n=7339.1 ± 13.07
Lipase, Week 72, n=7337.1 ± 13.72
Lipase, Week 84, n=7233.5 ± 11.55
Lipase, Week 96, n=7234.2 ± 16.73
SecondaryAbsolute Values for Clinical Chemistry Parameters: Direct Bilirubin, Total Bilirubin, Creatinine and Uric Acid

Blood samples were collected for the analysis of clinical chemistry parameters: direct bilirubin, total bilirubin, creatinine and uric acid. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Micromoles per liter
Absolute Values for Clinical Chemistry Parameters: Direct Bilirubin, Total Bilirubin, Creatinine and Uric Acid
Micromoles per literTenofovir Disoproxil Fumarate
Direct bilirubin, Baseline (Day 1), n=753.899 ± 2.0574
Direct bilirubin, Week 4, n=753.944 ± 1.6386
Direct bilirubin, Week 12, n=743.928 ± 1.5943
Direct bilirubin, Week 24, n=744.021 ± 1.9493
Direct bilirubin, Week 36, n=733.959 ± 1.9304
Direct bilirubin, Week 48, n=734.029 ± 2.1015
Direct bilirubin, Week 60, n=733.607 ± 1.4409
Direct bilirubin, Week 72, n=733.959 ± 1.7540
Direct bilirubin, Week 84, n=723.919 ± 1.7560
Direct bilirubin, Week 96, n=724.418 ± 1.8765
Total bilirubin, Baseline (Day 1), n=7510.693 ± 5.4663
Total bilirubin, Week 4, n=7510.009 ± 4.1478
Total bilirubin, Week 12, n=749.890 ± 4.1528
Total bilirubin, Week 24, n=7410.584 ± 5.4641
Total bilirubin, Week 36, n=7310.518 ± 5.2834
Total bilirubin, Week 48, n=7310.635 ± 5.6373
Total bilirubin, Week 60, n=739.557 ± 3.7684
Total bilirubin, Week 72, n=7310.237 ± 5.0381
Total bilirubin, Week 84, n=7210.284 ± 5.9340
Total bilirubin, Week 96, n=7211.329 ± 4.4037
Creatinine, Baseline (Day 1), n=7562.9997 ± 11.33874
Creatinine, Week 4, n=7564.1666 ± 11.28624
Creatinine, Week 12, n=7465.8102 ± 10.95564
Creatinine, Week 24, n=7465.2965 ± 11.04922
Creatinine, Week 36, n=7365.9852 ± 10.57867
Creatinine, Week 48, n=7365.9125 ± 11.31592
Creatinine, Week 60, n=7365.3191 ± 10.70634
Creatinine, Week 72, n=7365.4887 ± 11.06350
Creatinine, Week 84, n=7266.5578 ± 11.42181
Creatinine, Week 96, n=7267.3436 ± 11.07035
Uric acid, Baseline (Day 1), n=75333.0880 ± 71.24862
Uric acid, Week 4, n=75322.9367 ± 67.10023
Uric acid, Week 12, n=74323.3622 ± 73.51388
Uric acid, Week 24, n=74321.3528 ± 70.76893
Uric acid, Week 36, n=73320.9476 ± 70.10092
Uric acid, Week 48, n=73320.8661 ± 67.21277
Uric acid, Week 60, n=73309.3775 ± 62.83437
Uric acid, Week 72, n=73318.0958 ± 71.99367
Uric acid, Week 84, n=72318.0528 ± 66.72860
Uric acid, Week 96, n=72328.0487 ± 71.10783
SecondaryAbsolute Values for Clinical Chemistry Parameters: Calcium, Chloride, Glucose, Potassium, Lactic Acid, Sodium, Phosphorus and Blood Urea Nitrogen (BUN)

Blood samples were collected for the analysis of clinical chemistry parameters: calcium, chloride, glucose, potassium, lactic acid, sodium, phosphorus inorganic and BUN. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Millimoles per liter
Absolute Values for Clinical Chemistry Parameters: Calcium, Chloride, Glucose, Potassium, Lactic Acid, Sodium, Phosphorus and Blood Urea Nitrogen (BUN)
Millimoles per literTenofovir Disoproxil Fumarate
Calcium, Baseline (Day 1), n=752.290743 ± 0.0712447
Calcium, Week 4, n=752.272446 ± 0.0650823
Calcium, Week 12, n=742.265393 ± 0.0642412
Calcium, Week 24, n=742.251232 ± 0.0711166
Calcium, Week 36, n=732.257121 ± 0.0674474
Calcium, Week 48, n=732.297792 ± 0.0662944
Calcium, Week 60, n=732.316932 ± 0.0668335
Calcium, Week 72, n=732.297451 ± 0.0711492
Calcium, Week 84, n=722.289856 ± 0.0621422
Calcium, Week 96, n=722.306489 ± 0.0685384
Chloride, Baseline (Day 1), n=75103.5 ± 2.09
Chloride, Week 4, n=75103.3 ± 1.90
Chloride, Week 12, n=74103.5 ± 2.04
Chloride, Week 24, n=74103.9 ± 1.70
Chloride, Week 36, n=73104.0 ± 1.98
Chloride, Week 48, n=73103.6 ± 1.87
Chloride, Week 60, n=73103.6 ± 1.85
Chloride, Week 72, n=73104.1 ± 2.16
Chloride, Week 84, n=72104.9 ± 2.40
Chloride, Week 96, n=72104.3 ± 2.01
Glucose, Baseline (Day 1), n=755.832251 ± 1.3417805
Glucose, Week 4, n=755.704208 ± 1.0439295
Glucose, Week 12, n=745.590757 ± 0.8796367
Glucose, Week 24, n=745.652268 ± 0.9310549
Glucose, Week 36, n=735.582937 ± 1.0191927
Glucose, Week 48, n=735.709165 ± 0.8209347
Glucose, Week 60, n=735.887862 ± 1.1524669
Glucose, Week 72, n=735.801175 ± 0.9035958
Glucose, Week 84, n=725.938799 ± 1.0721973
Glucose, Week 96, n=725.544061 ± 0.6818280
Potassium, Baseline (Day 1), n=754.07 ± 0.258
Potassium, Week 4, n=754.07 ± 0.254
Potassium, Week 12, n=744.04 ± 0.257
Potassium, Week 24, n=744.03 ± 0.236
Potassium, Week 36, n=734.02 ± 0.264
Potassium, Week 48, n=734.05 ± 0.249
Potassium, Week 60, n=734.09 ± 0.275
Potassium, Week 72, n=734.10 ± 0.288
Potassium, Week 84, n=724.03 ± 0.260
Potassium, Week 96, n=724.05 ± 0.233
Lactic acid, Baseline (Day 1), n=751.10467 ± 0.397387
Lactic acid, Week 4, n=751.02342 ± 0.378255
Lactic acid, Week 12, n=741.07535 ± 0.464637
Lactic acid, Week 24, n=741.04970 ± 0.401795
Lactic acid, Week 36, n=731.06089 ± 0.434265
Lactic acid, Week 48, n=731.02865 ± 0.413619
Lactic acid, Week 60, n=731.15182 ± 0.466672
Lactic acid, Week 72, n=731.06332 ± 0.375955
Lactic acid, Week 84, n=721.12526 ± 0.493101
Lactic acid, Week 96, n=720.93703 ± 0.400024
Sodium, Baseline (Day 1), n=75141.6 ± 1.64
Sodium, Week 4, n=75141.9 ± 1.61
Sodium, Week 12, n=74142.3 ± 1.45
Sodium, Week 24, n=74142.2 ± 1.32
Sodium, Week 36, n=73142.0 ± 1.52
Sodium, Week 48, n=73142.0 ± 1.45
Sodium, Week 60, n=73142.2 ± 1.55
Sodium, Week 72, n=73142.0 ± 1.26
Sodium, Week 84, n=72142.0 ± 1.74
Sodium, Week 96, n=72141.3 ± 1.43
Phosphorus inorganic, Baseline (Day 1), n=751.072028 ± 0.1757407
Phosphorus inorganic, Week 4, n=751.031558 ± 0.1563869
Phosphorus inorganic, Week 12, n=741.061206 ± 0.1621407
Phosphorus inorganic, Week 24, n=741.052479 ± 0.1695973
Phosphorus inorganic, Week 36, n=731.061589 ± 0.1529705
Phosphorus inorganic, Week 48, n=731.073090 ± 0.1642529
Phosphorus inorganic, Week 60, n=731.071320 ± 0.1738322
Phosphorus inorganic, Week 72, n=731.082378 ± 0.1734792
Phosphorus inorganic, Week 84, n=721.070952 ± 0.1739292
Phosphorus inorganic, Week 96, n=721.095169 ± 0.1397279
BUN, Baseline (Day 1), n=754.89518 ± 1.278805
BUN, Week 4, n=754.80712 ± 1.270529
BUN, Week 12, n=744.86581 ± 1.389805
BUN, Week 24, n=744.96519 ± 1.315155
BUN, Week 36, n=734.86449 ± 1.433234
BUN, Week 48, n=734.71289 ± 1.240093
BUN, Week 60, n=734.84884 ± 1.312435
BUN, Week 72, n=734.86889 ± 1.090615
BUN, Week 84, n=724.70000 ± 1.441539
BUN, Week 96, n=724.65389 ± 1.214425
SecondaryAbsolute Values for Clinical Chemistry Parameter: Creatinine Clearance

Blood samples were collected for the analysis of clinical chemistry parameter, creatinine clearance. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Milliliters per minute
Absolute Values for Clinical Chemistry Parameter: Creatinine Clearance
Milliliters per minuteTenofovir Disoproxil Fumarate
Baseline (Day 1), n=75114.06 ± 23.849
Week 4, n=75112.50 ± 25.283
Week 12, n=74108.76 ± 24.634
Week 24, n=74108.86 ± 24.963
Week 36, n=73105.23 ± 23.739
Week 48, n=73105.50 ± 24.333
Week 60, n=73107.51 ± 25.719
Week 72, n=73106.73 ± 24.278
Week 84, n=72104.00 ± 23.511
Week 96, n=72101.47 ± 23.705
SecondaryAbsolute Values for Clinical Chemistry Parameter: Glomerular Filtration Rate (GFR)

Blood samples were collected for the analysis of clinical chemistry parameter, GFR. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Milliliters per second per 1.73*meter^2
Absolute Values for Clinical Chemistry Parameter: Glomerular Filtration Rate (GFR)
Milliliters per second per 1.73*meter^2Tenofovir Disoproxil Fumarate
Baseline (Day 1), n=751.46981 ± 0.260068
Week 4, n=751.43825 ± 0.260661
Week 12, n=741.39282 ± 0.241198
Week 24, n=741.40228 ± 0.238776
Week 36, n=731.37971 ± 0.235498
Week 48, n=731.38564 ± 0.250919
Week 60, n=731.39501 ± 0.246331
Week 72, n=731.38998 ± 0.243750
Week 84, n=721.36299 ± 0.233140
Week 96, n=721.34355 ± 0.239422
SecondaryPercentage of Basophils at Indicated Time Points

Blood samples were collected for the analysis of hematology parameter: basophils. Mean and standard deviation values for percentage of basophils reported was presented.

Time frame:
At Weeks 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Percentage of basophils
Percentage of Basophils at Indicated Time Points
Percentage of basophilsTenofovir Disoproxil Fumarate
Week 36, n=320.46 ± 0.240
Week 48, n=730.49 ± 0.303
Week 60, n=730.57 ± 0.453
Week 72, n=730.50 ± 0.319
Week 84, n=720.54 ± 0.305
Week 96, n=720.57 ± 0.376
SecondaryPercentage of Eosinophils at Indicated Time Points

Blood samples were collected for the analysis of hematology parameter: eosinophils. Mean and standard deviation values for percentage of eosinophils reported was presented.

Time frame:
At Weeks 36 , 48, 60, 72, 84 and 96
Reported as:
Mean · Percentage of eosinophils
Percentage of Eosinophils at Indicated Time Points
Percentage of eosinophilsTenofovir Disoproxil Fumarate
Week 36, n=322.44 ± 1.767
Week 48, n=732.94 ± 2.667
Week 60, n=732.85 ± 2.298
Week 72, n=733.09 ± 2.519
Week 84, n=722.84 ± 2.042
Week 96, n=722.57 ± 2.145
SecondaryPercentage of Lymphocytes at Indicated Time Points

Blood samples were collected for the analysis of hematology parameter: lymphocytes. Mean and standard deviation values for percentage of lymphocytes reported was presented.

Time frame:
At Weeks 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Percentage of lymphocytes
Percentage of Lymphocytes at Indicated Time Points
Percentage of lymphocytesTenofovir Disoproxil Fumarate
Week 36, n=3233.34 ± 8.858
Week 48, n=7332.39 ± 8.516
Week 60, n=7332.73 ± 7.541
Week 72, n=7332.29 ± 8.579
Week 84, n=7231.94 ± 7.424
Week 96, n=7232.98 ± 8.215
SecondaryPercentage of Monocytes at Indicated Time Points

Blood samples were collected for the analysis of hematology parameter: monocytes. Mean and standard deviation values for percentage of monocytes reported was presented.

Time frame:
At Weeks 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Percentage of monocytes
Percentage of Monocytes at Indicated Time Points
Percentage of monocytesTenofovir Disoproxil Fumarate
Week 36, n=325.30 ± 1.492
Week 48, n=735.46 ± 1.598
Week 60, n=735.65 ± 1.430
Week 72, n=735.67 ± 1.814
Week 84, n=725.71 ± 1.562
Week 96, n=725.45 ± 1.475
SecondaryPercentage of Total Neutrophils at Indicated Time Points

Blood samples were collected for the analysis of hematology parameter: total neutrophils. Mean and standard deviation values for percentage of neutrophils reported was presented.

Time frame:
At Weeks 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Percentage of neutrophils
Percentage of Total Neutrophils at Indicated Time Points
Percentage of neutrophilsTenofovir Disoproxil Fumarate
Week 36, n=3258.46 ± 8.658
Week 48, n=7358.72 ± 8.709
Week 60, n=7358.20 ± 8.176
Week 72, n=7358.45 ± 9.109
Week 84, n=7258.97 ± 7.881
Week 96, n=7258.43 ± 8.973
SecondaryAbsolute Values for Hematology Parameter: Hemoglobin

Blood samples were collected for the analysis of hematology parameter, hemoglobin. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Grams per liter
Absolute Values for Hematology Parameter: Hemoglobin
Grams per literTenofovir Disoproxil Fumarate
Baseline (Day 1), n=75148.2 ± 13.13
Week 4, n=75148.9 ± 13.40
Week 12, n=74148.4 ± 14.41
Week 24, n=74146.3 ± 14.28
Week 36, n=73144.1 ± 15.58
Week 48, n=73146.5 ± 15.81
Week 60, n=73147.1 ± 14.93
Week 72, n=73146.4 ± 14.95
Week 84, n=72144.6 ± 16.01
Week 96, n=72146.4 ± 16.07
SecondaryAbsolute Values for Hematology Parameter: Hematocrit

Blood samples were collected for the analysis of hematology parameter, hematocrit. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Proportion of red blood cells in blood
Absolute Values for Hematology Parameter: Hematocrit
Proportion of red blood cells in bloodTenofovir Disoproxil Fumarate
Baseline (Day 1), n=750.4393 ± 0.03331
Week 4, n=750.4441 ± 0.03475
Week 12, n=740.4452 ± 0.03679
Week 24, n=740.4367 ± 0.03550
Week 36, n=730.4283 ± 0.04156
Week 48, n=730.4350 ± 0.03942
Week 60, n=730.4398 ± 0.03940
Week 72, n=730.4391 ± 0.03817
Week 84, n=720.4339 ± 0.04070
Week 96, n=720.4355 ± 0.04159
SecondaryAbsolute Values for Hematology Parameters: Platelet Count and White Blood Cell (WBC) Count

Blood samples were collected for the analysis of hematology parameters: platelet count and WBC count. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Giga cells per liter
Absolute Values for Hematology Parameters: Platelet Count and White Blood Cell (WBC) Count
Giga cells per literTenofovir Disoproxil Fumarate
Platelet count, Baseline (Day 1), n=75226.7 ± 53.40
Platelet count, Week 4, n=75227.1 ± 57.44
Platelet count, Week 12, n=74228.9 ± 57.67
Platelet count, Week 24, n=74226.1 ± 55.46
Platelet count, Week 36, n=73231.4 ± 65.32
Platelet count, Week 48, n=73229.9 ± 57.37
Platelet count, Week 60, n=73231.8 ± 56.11
Platelet count, Week 72, n=73224.9 ± 53.00
Platelet count, Week 84, n=72224.8 ± 57.64
Platelet count, Week 96, n=72226.6 ± 54.72
WBC count, Baseline (Day 1), n=755.18 ± 1.558
WBC count, Week 4, n=755.21 ± 1.525
WBC count, Week 12, n=745.30 ± 1.380
WBC count, Week 24, n=745.06 ± 1.279
WBC count, Week 36, n=734.99 ± 1.320
WBC count, Week 48, n=735.16 ± 1.674
WBC count, Week 60, n=734.84 ± 1.247
WBC count, Week 72, n=735.00 ± 1.372
WBC count, Week 84, n=725.00 ± 1.338
WBC count, Week 96, n=725.08 ± 1.583
SecondaryAbsolute Values for Hematology Parameter: Prothrombin Time

Blood samples were collected for the analysis of hematology parameter, prothrombin time. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Seconds
Absolute Values for Hematology Parameter: Prothrombin Time
SecondsTenofovir Disoproxil Fumarate
Baseline (Day 1), n=7511.82 ± 0.632
Week 4, n=7511.91 ± 0.679
Week 12, n=7411.95 ± 0.642
Week 24, n=7411.76 ± 0.627
Week 36, n=7311.94 ± 0.720
Week 48, n=7312.71 ± 0.681
Week 60, n=7312.32 ± 0.613
Week 72, n=7312.40 ± 0.615
Week 84, n=7212.58 ± 0.684
Week 96, n=7212.78 ± 0.766
SecondaryAbsolute Values for Hematology Parameter: Red Blood Cell (RBC) Count

Blood samples were collected for the analysis of hematology parameter, RBC count. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Trillion cells per liter
Absolute Values for Hematology Parameter: Red Blood Cell (RBC) Count
Trillion cells per literTenofovir Disoproxil Fumarate
Baseline (Day 1), n=754.785 ± 0.4087
Week 4, n=754.841 ± 0.4154
Week 12, n=744.865 ± 0.4358
Week 24, n=744.820 ± 0.4061
Week 36, n=734.704 ± 0.4473
Week 48, n=734.780 ± 0.4026
Week 60, n=734.819 ± 0.4288
Week 72, n=734.793 ± 0.4058
Week 84, n=724.757 ± 0.4314
Week 96, n=724.777 ± 0.4440
SecondaryNumber of Participants With Abnormal Urinalysis Values at Weeks 4, 12, 24, 36 and 48

Urine samples were collected for analysis of urinalysis data for glucose, protein and urinary sediment by dipstick method. The urine sediments analyzed were amorphous phosphate crystals, amorphous urate crystals, bacteria, calcium oxalate crystals, ammonium magnesium phosphate, renal tubular epithelial cells (RTEC), fungi, hyaline casts, mucous threads, RBCs, spermatozoa, squamous epithelial cells (SEC), transitional epithelial cells (TEC), uric acid crystals (UAC) and WBCs. The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameters can be read as Trace, 1+, 2+ and 3+, indicating proportional concentrations in the urine sample. Results for RTEC, hyaline casts, RBC, SEC, TEC and WBC can be read as counts per field (some/ every/ whole field). Only abnormal parameters and participants with abnormal data has been reported.

Time frame:
Weeks 4, 12, 24, 36 and 48
Reported as:
Count of participants · Participants
Number of Participants With Abnormal Urinalysis Values at Weeks 4, 12, 24, 36 and 48
ParticipantsTenofovir Disoproxil Fumarate
Amorphous phosphate crystals, Week 4, 1+2
Amorphous phosphate crystals, Week 12, 1+2
Amorphous phosphate crystals, Week 24, 1+3
Amorphous phosphate crystals, Week 36, 1+2
Amorphous phosphate crystals, Week 48, 1+2
Amorphous urate crystals, Week 4, 1+3
Amorphous urate crystals, Week 12, 1+6
Amorphous urate crystals, Week 24, 1+8
Amorphous urate crystals, Week 36, 1+5
Amorphous urate crystals, Week 48, 1+5
Bacteria, Week 4, 1+5
Bacteria, Week 12, 1+11
Bacteria, Week 24, 1+6
Bacteria, Week 24, 2+2
Bacteria, Week 36, 1+8
Bacteria, Week 48, 1+11
Bacteria, Week 48, 2+1
Calcium oxalate crystals, Week 4, 1+11
Calcium oxalate crystals, Week 12, 1+9
Calcium oxalate crystals, Week 24, 1+14
Calcium oxalate crystals, Week 36, 1+15
Calcium oxalate crystals, Week 48, 1+10
RTEC, Week 4, 0-0.1/Some Field23
RTEC, Week 4, 0.2-0.4/Some Field5
RTEC, Week 4, 1-2/Every Field1
RTEC, Week 12, 0-0.1/Some Field25
RTEC, Week 12, 0.2-0.4/Some Field4
RTEC, Week 24, 0-0.1/Some Field19
RTEC, Week 24, 0.2-0.4/Some Field2
RTEC, Week 24, 1-2/Every Field1
RTEC, Week 36, 0-0.1/Some Field19
RTEC, Week 36, 0.2-0.4/Some Field2
RTEC, Week 36, 1-2/Every Field1
RTEC, Week 48, 0-0.1/Some Field21
RTEC, Week 48, 0.2-0.4/Some Field5
RTEC, Week 48, 1-2/Every Field3
Fungi, Week 4, 1+0
Fungi, Week 12, 1+0
Fungi, Week 24, 1+1
Fungi, Week 36, 1+0
Fungi, Week 48, 1+0
Urine glucose, Week 4, 1+1
Urine glucose, Week 4, Trace1
Urine glucose, Week 12, 2+1
Urine glucose, Week 12, Trace1
Urine glucose, Week 24, 3+1
Urine glucose, Week 36, Trace2
Urine glucose, Week 48, 1+1
Urine glucose, Week 48, 3+1
Urine glucose, Week 48, Trace1
Hyaline casts, Week 4, 0-0.1/Some Field6
Hyaline casts, Week 12, 0-0.1/Some Field3
Hyaline casts, Week 12, 3-5/Whole Field2
Hyaline casts, Week 24, 0-0.1/Some Field1
Hyaline casts, Week 24, 1-2/Whole Field3
Hyaline casts, Week 24, 3-5/Whole Field1
Hyaline casts, Week 36, 0-0.1/Some Field1
Hyaline casts, Week 36, 0.2-0.4/Some Field1
Hyaline casts, Week 36, 1-2/Every Field1
Hyaline casts, Week 36, 1-2/Whole Field1
Hyaline casts, Week 48, 0-0.1/Some Field3
Hyaline casts, Week 48, 0.2-0.4/Some Field1
Mucus threads, Week 4, 1+17
Mucus threads, Week 12, 1+21
Mucus threads, Week 24, 1+23
Mucus threads, Week 36, 1+25
Mucus threads, Week 48, 1+22
Urine protein, Week 4, 1+1
Urine protein, Week 4, 2+1
Urine protein, Week 4, Trace15
Urine protein, Week 12, 1+2
Urine protein, Week 12, Trace24
Urine protein, Week 24, 1+4
Urine protein, Week 24, 2+1
Urine protein, Week 24, Trace28
Urine protein, Week 36, 1+3
Urine protein, Week 36, 2+1
Urine protein, Week 36, Trace27
Urine protein, Week 48, Trace15
RBC, Week 4, 0-0.1/Some Field35
RBC, Week 4, 0.2-0.4/Some Field20
RBC, Week 4, 1-2/Every Field13
RBC, Week 4, 3-5/Every Field4
RBC, Week 4, 6-10/Every Field3
RBC, Week 12, numerous/Every Field1
RBC, Week 12, 0-0.1/Some Field33
RBC, Week 12, 0.2-0.4/Some Field23
RBC, Week 12, 1-2/Every Field11
RBC, Week 12, 3-5/Every Field4
RBC, Week 12, 6-10/Every Field1
RBC, Week 12, 10-20/Every Field1
RBC, Week 24, 0-0.1/Some Field40
RBC, Week 24, 0.2-0.4/Some Field14
RBC, Week 24, 1-2/Every Field14
RBC, Week 24, 3-5/Every Field1
RBC, Week 24, 6-10/Every Field2
RBC, Week 24, 10-20/Every Field1
RBC, Week 24, 20-30/Every Field2
RBC, Week 36, 0-0.1/Some Field42
RBC, Week 36, 0.2-0.4/Some Field20
RBC, Week 36, 1-2/Every Field7
RBC, Week 36, 3-5/Every Field1
RBC, Week 36, 6-10/Every Field2
RBC, Week 36, 10-20/Every Field1
RBC, Week 48, 0-0.1/Some Field39
RBC, Week 48, 0.2-0.4/Some Field14
RBC, Week 48, 1-2/Every Field14
RBC, Week 48, 3-5/Every Field3
RBC, Week 48, 6-10/Every Field2
RBC, Week 48, 10-20/Every Field1
Spermatozoa, Week 4, 1+1
Spermatozoa, Week 12, 1+0
Spermatozoa, Week 24, 1+2
Spermatozoa, Week 36, 1+3
Spermatozoa, Week 48, 1+0
SEC, Week 4, 0-0.1/Some Field58
SEC, Week 4, 0.2-0.4/Some Field7
SEC, Week 4, 1-2/Every Field7
SEC, Week 4, 3-5/Every Field2
SEC, Week 4, 10-20/Every Field1
SEC, Week 12, 0-0.1/Some Field54
SEC, Week 12, 0.2-0.4/Some Field9
SEC, Week 12, 1-2/Every Field6
SEC, Week 12, 3-5/Every Field2
SEC, Week 12, 6-10/Every Field1
SEC, Week 12, 10-20/Every Field1
SEC, Week 12, 30-50/Every Field1
SEC, Week 24, 0-0.1/Some Field55
SEC, Week 24, 0.2-0.4/Some Field6
SEC, Week 24, 1-2/Every Field8
SEC, Week 24, 3-5/Every Field1
SEC, Week 24, 6-10/Every Field1
SEC, Week 24, 10-20/Every Field2
SEC, Week 24, 20-30/Every Field1
SEC, Week 36, 0-0.1/Some Field59
SEC, Week 36, 0.2-0.4/Some Field4
SEC, Week 36, 1-2/Every Field9
SEC, Week 36, 3-5/Every Field1
SEC, Week 48, 0-0.1/Some Field58
SEC, Week 48, 0.2-0.4/Some Field4
SEC, Week 48, 1-2/Every Field5
SEC, Week 48, 3-5/Every Field5
SEC, Week 48, 6-10/Every Field1
TEC, Week 4, 0-0.1/Some Field4
TEC, Week 12, 0-0.1/Some Field4
TEC, Week 24, 0-0.1/Some Field5
TEC, Week 24, 0.2-0.4/Some Field2
TEC, Week 36, 0-0.1/Some Field3
TEC, Week 36, 0.2-0.4/Some Field1
TEC, Week 36, 1-2/Every Field1
TEC, Week 48, 0-0.1/Some Field5
UAC, Week 4, 1+0
UAC, Week 12, 1+0
UAC, Week 24, 1+0
UAC, Week 36, 1+2
UAC, Week 48, 1+1
WBC, Week 4, 0-0.1/Some Field35
WBC, Week 4, 0.2-0.4/Some Field27
WBC, Week 4, 1-2/Every Field10
WBC, Week 4, 3-5/Every Field1
WBC, Week 4, 10-20/Every Field2
WBC, Week 12, 0-0.1/Some Field37
WBC, Week 12, 0.2-0.4/Some Field22
WBC, Week 12, 1-2/Every Field8
WBC, Week 12, 3-5/Every Field6
WBC, Week 12, 6-10/Every Field1
WBC, Week 24, 0-0.1/Some Field42
WBC, Week 24, 0.2-0.4/Some Field20
WBC, Week 24, 1-2/Every Field5
WBC, Week 24, 3-5/Every Field3
WBC, Week 24, 6-10/Every Field1
WBC, Week 24, 10-20/Every Field2
WBC, Week 24, 30-50/Every Field1
WBC, Week 36, 0-0.1/Some Field45
WBC, Week 36, 0.2-0.4/Some Field20
WBC, Week 36, 1-2/Every Field1
WBC, Week 36, 3-5/Every Field4
WBC, Week 36, 6-10/Every Field2
WBC, Week 36, 30-50/Every Field1
WBC, Week 48, 0-0.1/Some Field43
WBC, Week 48, 0.2-0.4/Some Field14
WBC, Week 48, 1-2/Every Field11
WBC, Week 48, 3-5/Every Field2
WBC, Week 48, 6-10/Every Field2
SecondaryNumber of Participants With Abnormal Urinalysis Values at Weeks 60, 72, 84 and 96

Urine samples were collected for analysis of urinalysis data for glucose, protein and urinary sediment by dipstick method. The urine sediments analyzed were amorphous phosphate crystals, amorphous urate crystals, bacteria, calcium oxalate crystals, ammonium magnesium phosphate, renal tubular epithelial cells (RTEC), fungi, hyaline casts, mucous threads, RBCs, spermatozoa, squamous epithelial cells (SEC), transitional epithelial cells (TEC), uric acid crystals (UAC) and WBCs. The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameters can be read as Trace, 1+, 2+ and 3+, indicating proportional concentrations in the urine sample. Results for RTEC, hyaline casts, RBC, SEC, TEC and WBC can be read as counts per field (some/ every/ whole field). Only abnormal parameters and participants with abnormal data has been reported.

Time frame:
Weeks 60, 72, 84 and 96
Reported as:
Count of participants · Participants
Number of Participants With Abnormal Urinalysis Values at Weeks 60, 72, 84 and 96
ParticipantsTenofovir Disoproxil Fumarate
Amorphous phosphate crystals, Week 60, 1+2
Amorphous phosphate crystals, Week 72, 1+2
Amorphous phosphate crystals, Week 84, 1+2
Amorphous urate crystals, Week 60, 1+3
Amorphous urate crystals, Week 72, 1+2
Amorphous urate crystals, Week 84, 1+8
Amorphous urate crystals, Week 96, 1+3
Bacteria, Week 60, 1+15
Bacteria, Week 72, 1+7
Bacteria, Week 72, 2+3
Bacteria, Week 84, 1+9
Bacteria, Week 84, 2+2
Bacteria, Week 96, 1+9
Bacteria, Week 96, 2+1
Calcium oxalate crystals, Week 60, 1+14
Calcium oxalate crystals, Week 72, 1+12
Calcium oxalate crystals, Week 84, 1+16
Calcium oxalate crystals, Week 96, 1+4
RTEC, Week 60, 0-0.1/Some Field19
RTEC, Week 60, 0.2-0.4/Some Field7
RTEC, Week 60, 1-2/Every Field1
RTEC, Week 72, 0-0.1/Some Field14
RTEC, Week 72, 0.2-0.4/Some Field5
RTEC, Week 84, 0-0.1/Some Field9
RTEC, Week 84, 0.2-0.4/Some Field4
RTEC, Week 84, 1-2/Every Field2
RTEC, Week 84, 3-5/Every Field1
RTEC, Week 96, 0-0.1/Some Field15
RTEC, Week 96, 0.2-0.4/Some Field2
RTEC, Week 96, 1-2/Every Field1
Urine glucose, Week 60, 3+1
Urine glucose, Week 72, 1+1
Urine glucose, Week 72, 2+1
Hyaline casts, Week 60, 0-0.1/Some Field4
Hyaline casts, Week 72, 0-0.1/Some Field4
Hyaline casts, Week 72, 0.2-0.4/Some Field1
Hyaline casts, Week 84, 0-0.1/Some Field2
Hyaline casts, Week 84, 1-2/Whole Field1
Hyaline casts, Week 84, 3-5/Whole Field1
Hyaline casts, Week 96, 0-0.1/Some Field2
Hyaline casts, Week 96, 0.2-0.4/Some Field1
Hyaline casts, Week 96, 3-5/Whole Field3
Mucus threads, Week 60, 1+27
Mucus threads, Week 72, 1+15
Mucus threads, Week 84, 1+18
Mucus threads, Week 96, 1+19
Urine protein, Week 60, 1+1
Urine protein, Week 60, Trace11
Urine protein, Week 72, 1+2
Urine protein, Week 72, Trace14
Urine protein, Week 84, 1+2
Urine protein, Week 84, Trace17
Urine protein, Week 96, 1+3
Urine protein, Week 96, Trace11
RBC, Week 60, 0-0.1/Some Field35
RBC, Week 60, 0.2-0.4/Some Field17
RBC, Week 60, 1-2/Every Field12
RBC, Week 60, 3-5/Every Field5
RBC, Week 60, 6-10/Every Field1
RBC, Week 60, 10-20/Every Field2
RBC, Week 60, 30-50/Every Field1
RBC, Week 72, 0-0.1/Some Field45
RBC, Week 72, 0.2-0.4/Some Field11
RBC, Week 72, 1-2/Every Field12
RBC, Week 72, 3-5/Every Field3
RBC, Week 72, 30-50/Every Field2
RBC, Week 84, many/Every Field1
RBC, Week 84, 0-0.1/Some Field40
RBC, Week 84, 0.2-0.4/Some Field9
RBC, Week 84, 1-2/Every Field15
RBC, Week 84, 3-5/Every Field3
RBC, Week 84, 6-10/Every Field2
RBC, Week 84, 20-30/Every Field1
RBC, Week 84, 30-50/Every Field1
RBC, Week 96, many/Every Field1
RBC, Week 96, 0-0.1/Some Field44
RBC, Week 96, 0.2-0.4/Some Field11
RBC, Week 96, 1-2/Every Field11
RBC, Week 96, 3-5/Every Field4
RBC, Week 96, 10-20/Every Field1
Spermatozoa, Week 84, 1+1
SEC, Week 60, 0-0.1/Some Field52
SEC, Week 60, 0.2-0.4/Some Field7
SEC, Week 60, 1-2/Every Field9
SEC, Week 60, 3-5/Every Field2
SEC, Week 60, 10-20/Every Field2
SEC, Week 60, 20-30/Every Field1
SEC, Week 72, 0-0.1/Some Field55
SEC, Week 72, 0.2-0.4/Some Field6
SEC, Week 72, 1-2/Every Field5
SEC, Week 72, 3-5/Every Field1
SEC, Week 72, 6-10/Every Field2
SEC, Week 72, 10-20/Every Field1
SEC, Week 72, 20-30/Every Field3
SEC, Week 84, many/Every Field1
SEC, Week 84, 0-0.1/Some Field52
SEC, Week 84, 0.2-0.4/Some Field8
SEC, Week 84, 1-2/Every Field5
SEC, Week 84, 3-5/Every Field4
SEC, Week 84, 6-10/Every Field2
SEC, Week 96, 0-0.1/Some Field56
SEC, Week 96, 0.2-0.4/Some Field4
SEC, Week 96, 1-2/Every Field8
SEC, Week 96, 3-5/Every Field1
SEC, Week 96, 6-10/Every Field2
SEC, Week 96, 10-20/Every Field1
TEC, Week 60, 0-0.1/Some Field3
TEC, Week 60, 0.2-0.4/Some Field1
TEC, Week 72, 0-0.1/Some Field7
TEC, Week 84, 0-0.1/Some Field3
TEC, Week 96, 0-0.1/Some Field5
UAC, Week 60, 1+1
UAC, Week 72, 1+1
UAC, Week 96, 1+2
WBC, Week 60, 0-0.1/Some Field38
WBC, Week 60, 0.2-0.4/Some Field19
WBC, Week 60, 1-2/Every Field12
WBC, Week 60, 3-5/Every Field2
WBC, Week 60, 6-10/Every Field1
WBC, Week 60, 10-20/Every Field1
WBC, Week 72, 0-0.1/Some Field39
WBC, Week 72, 0.2-0.4/Some Field19
WBC, Week 72, 1-2/Every Field7
WBC, Week 72, 3-5/Every Field2
WBC, Week 72, 6-10/Every Field5
WBC, Week 72, 30-50/Every Field1
WBC, Week 84, many/Every Field2
WBC, Week 84, 0-0.1/Some Field47
WBC, Week 84, 0.2-0.4/Some Field12
WBC, Week 84, 1-2/Every Field6
WBC, Week 84, 10-20/Every Field3
WBC, Week 84, 20-30/Every Field1
WBC, Week 84, 30-50/Every Field1
WBC, Week 96, 0-0.1/Some Field41
WBC, Week 96, 0.2-0.4/Some Field18
WBC, Week 96, 1-2/Every Field8
WBC, Week 96, 6-10/Every Field4
WBC, Week 96, 20-30/Every Field1
SecondaryChange From Baseline Values for Beta-2-microglobulin

Urine samples were collected for analysis of urinalysis data for beta-2-microglobulin. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Micrograms per liter
Change From Baseline Values for Beta-2-microglobulin
Micrograms per literTenofovir Disoproxil Fumarate
Week 4, n=75206.9 ± 593.69
Week 12, n=74254.6 ± 891.36
Week 24, n=74392.7 ± 1544.73
Week 36, n=73261.1 ± 715.81
Week 48, n=73206.8 ± 580.77
Week 60, n=73309.4 ± 651.85
Week 72, n=73235.7 ± 542.52
Week 84, n=72271.3 ± 616.86
Week 96, n=72196.1 ± 478.68
SecondaryChange From Baseline Values for Urine Creatinine Concentration and Urine Phosphate

Urine samples were collected for analysis of urinalysis data for urine creatinine concentration and urine phosphate. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Milligrams per deciliter
Change From Baseline Values for Urine Creatinine Concentration and Urine Phosphate
Milligrams per deciliterTenofovir Disoproxil Fumarate
Urine Creatinine, Week 4, n=75-5.353 ± 64.9427
Urine Creatinine, Week 12, n=742.047 ± 70.1488
Urine Creatinine, Week 24, n=7411.715 ± 78.3996
Urine Creatinine, Week 36, n=7315.849 ± 67.4606
Urine Creatinine, Week 48, n=734.674 ± 71.2417
Urine Creatinine, Week 60, n=735.567 ± 58.5998
Urine Creatinine, Week 72, n=73-1.378 ± 62.0304
Urine Creatinine, Week 84, n=7219.337 ± 73.2844
Urine Creatinine, Week 96, n=7210.346 ± 69.2155
Urine phosphate, Week 4, n=75-3.87 ± 34.392
Urine phosphate, Week 12, n=74-2.08 ± 35.796
Urine phosphate, Week 24, n=742.46 ± 35.994
Urine phosphate, Week 36, n=730.85 ± 36.016
Urine phosphate, Week 48, n=730.68 ± 36.561
Urine phosphate, Week 60, n=73-0.09 ± 37.888
Urine phosphate, Week 72, n=730.85 ± 34.012
Urine phosphate, Week 84, n=725.21 ± 34.599
Urine phosphate, Week 96, n=72-0.72 ± 38.732
SecondaryAbsolute Values for Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)

Blood pressure of participants were measured at indicated time points in supine position after 5 minutes rest. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Millimeters of mercury
Absolute Values for Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)
Millimeters of mercuryTenofovir Disoproxil Fumarate
SBP, Baseline (Day 1), n=75122.5 ± 14.15
SBP, Week 4, n=75122.9 ± 12.91
SBP, Week 12, n=74124.9 ± 16.28
SBP, Week 24, n=74121.9 ± 12.33
SBP, Week 36, n=73121.5 ± 14.81
SBP, Week 48, n=73122.5 ± 14.76
SBP, Week 60, n=73124.7 ± 14.68
SBP, Week 72, n=73124.2 ± 15.36
SBP, Week 84, n=72122.1 ± 12.86
SBP, Week 96, n=72120.8 ± 16.07
DBP, Baseline (Day 1), n=7576.0 ± 11.76
DBP, Week 4, n=7575.2 ± 11.12
DBP, Week 12, n=7478.1 ± 10.44
DBP, Week 24, n=7475.6 ± 10.05
DBP, Week 36, n=7375.3 ± 10.18
DBP, Week 48, n=7377.8 ± 11.37
DBP, Week 60, n=7378.0 ± 11.07
DBP, Week 72, n=7377.5 ± 10.88
DBP, Week 84, n=7276.3 ± 10.23
DBP, Week 96, n=7276.1 ± 10.59
SecondaryAbsolute Values for Heart Rate

Heart rate of participants were measured at indicated time points in supine position after 5 minutes rest. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · Beats per minute
Absolute Values for Heart Rate
Beats per minuteTenofovir Disoproxil Fumarate
Baseline (Day 1), n=7574.7 ± 9.14
Week 4, n=7575.8 ± 10.51
Week 12, n=7476.0 ± 11.05
Week 24, n=7474.8 ± 10.17
Week 36, n=7374.3 ± 9.53
Week 48, n=7375.3 ± 11.32
Week 60, n=7375.8 ± 10.32
Week 72, n=7374.9 ± 11.35
Week 84, n=7275.5 ± 9.96
Week 96, n=7273.1 ± 10.49
SecondaryAbsolute Values for Temperature

Temperature of participants were measured at indicated time points in supine position after 5 minutes rest. Baseline is defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits.

Time frame:
Baseline (Day 1, Pre-dose) and at Weeks 4, 12, 24, 36, 48, 60, 72, 84 and 96
Reported as:
Mean · degrees Celsius
Absolute Values for Temperature
degrees CelsiusTenofovir Disoproxil Fumarate
Baseline (Day 1), n=7536.41 ± 0.382
Week 4, n=7536.43 ± 0.385
Week 12, n=7436.40 ± 0.448
Week 24, n=7436.43 ± 0.416
Week 36, n=7336.45 ± 0.360
Week 48, n=7336.41 ± 0.414
Week 60, n=7336.43 ± 0.375
Week 72, n=7336.42 ± 0.357
Week 84, n=7236.46 ± 0.349
Week 96, n=7236.40 ± 0.334
SecondaryNumber of Participants With Worst Case Post-Baseline Electrocardiogram (ECG) Values

Twelve-lead ECG was obtained using an ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, and corrected QT (QTc) intervals. Abnormal values with clinically significant and not clinically significant values has been presented. Clinically significant abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition.

Time frame:
Up to Week 96
Reported as:
Count of participants · Participants
Number of Participants With Worst Case Post-Baseline Electrocardiogram (ECG) Values
ParticipantsTenofovir Disoproxil Fumarate
Abnormal-not clinically significant20
Abnormal-clinically significant1
SecondaryChange From Baseline Values for Bone Density

Bone densitometry was performed on lumbar spine and femur using dual-energy X-ray absorptiometry (DEXA). Bone density percentage was calculated as bone density observation minus bone density Baseline divided by bone density Baseline. Baseline was considered as Day -1. Change from Baseline is calculated as the value at the post-dose visit minus the Baseline value.

Time frame:
Baseline (Day -1) and at Weeks 24, 48, 72 and 96
Reported as:
Mean · Grams per centimeter^2
Change From Baseline Values for Bone Density
Grams per centimeter^2Tenofovir Disoproxil Fumarate
Femur, Week 48, n=4-0.0125 ± 0.01654
Femur, Week 96, n=22-0.0205 ± 0.02765
Lumbar vertebra, Week 24, n=10.0100 ± NA
Lumbar vertebra, Week 48, n=6-0.0100 ± 0.04121
Lumbar vertebra, Week 72, n=1-0.0620 ± NA
Lumbar vertebra, Week 96, n=72-0.0193 ± 0.03539

Adverse events

Collected over SAEs and non-SAEs were collected from the start of the treatment up to Week 96.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Tenofovir Disoproxil Fumarate0/75 (0%)2/75 (2.7%)36/75 (48%)
Most frequent serious events
Most frequent serious events
EventTenofovir Disoproxil Fumarate
OsteoarthritisMusculoskeletal and connective tissue disorders1/75
AppendicitisInfections and infestations1/75
Most frequent other events
Most frequent other events
EventTenofovir Disoproxil Fumarate
NasopharyngitisInfections and infestations19/75
Beta 2 microglobulin urine increasedInvestigations17/75
HeadacheNervous system disorders4/75
Dental cariesGastrointestinal disorders4/75
Back painMusculoskeletal and connective tissue disorders4/75
CoughRespiratory, thoracic and mediastinal disorders4/75

Baseline characteristics

Age, Continuous
Age, Continuous(Years)Tenofovir Disoproxil Fumarate
Mean48.4 ± 9.35
Sex: Female, Male
Sex: Female, Male(Participants)Tenofovir Disoproxil Fumarate
Female20
Male55
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Tenofovir Disoproxil Fumarate
Asian-East Asian Heritage4
Asian-Japanese Heritage71
08

Study locations

18 sites
  • GSK Investigational Site
    Aichi, 467-8602, Japan
  • GSK Investigational Site
    Chiba, 270-1694, Japan
  • GSK Investigational Site
    Ehime, 790-0024, Japan
  • GSK Investigational Site
    Ehime, 790-8524, Japan
  • GSK Investigational Site
    Fukuoka, 802-0077, Japan
  • GSK Investigational Site
    Fukuoka, 810-8539, Japan
  • GSK Investigational Site
    Fukuoka, 830-0011, Japan
  • GSK Investigational Site
    Hiroshima, 737-0023, Japan
  • GSK Investigational Site
    Hokkaido, 060-0033, Japan
  • GSK Investigational Site
    Hokkaido, 080-0024, Japan
  • GSK Investigational Site
    Kanagawa, 213-8587, Japan
  • GSK Investigational Site
    Kanagawa, 216-8511, Japan
  • GSK Investigational Site
    Kumamoto, 862-8655, Japan
  • GSK Investigational Site
    Nagasaki, 856-8562, Japan
  • GSK Investigational Site
    Osaka, 545-8586, Japan
  • GSK Investigational Site
    Tokyo, 105-8470, Japan
  • GSK Investigational Site
    Tokyo, 180-8610, Japan
  • GSK Investigational Site
    Tottori, 683-0002, Japan
09

References and documents

Publications

  • Suzuki F, Suzuki Y, Karino Y, Tanaka Y, Kurosaki M, Yatsuhashi H, Atarashi T, Atsukawa M, Watanabe T, Enomoto M, Kudo M, Maeda N, Kohno H, Joko K, Michitaka K, Miki K, Takahashi K, Ide T, Fujiyama S, Kohno T, Itoh H, Tsukamoto S, Suzuki Y, Kawano Y, Sugiura W, Kumada H. Switching from entecavir to tenofovir disoproxil fumarate for HBeAg-positive chronic hepatitis B patients: a phase 4, prospective study. BMC Gastroenterol. 2021 Dec 20;21(1):489. doi: 10.1186/s12876-021-02008-9. PubMed 34930140 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — IPD for this study will be made available via the Clinical Study Data Request site.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report

Time frame: IPD will be made available within 6 months of publishing the results of the primary endpoints, key secondary endpoints and safety data of the study.

Access criteria: Access is provided after a research proposal is submitted and has received approval from the Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension can be granted when justified, for up to another 12 months.

Data sharing details ↗ · clinicalstudydatarequest.com

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2017 to primary completion in Dec 2018, 14 months.

Results were first posted in Jan 2020, 1 year after primary completion.

Of 63 phase 4 interventional studies under Hepatitis B, Chronic, half reached primary completion within 44 months of starting (the median), counting those still running; a quarter within 30 and three quarters within 64. This study's 14 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 21, 2017
First posted
Aug 23, 2017
StartActual
Oct 2, 2017
Primary completionActual
Dec 28, 2018
CompletionActual
Nov 25, 2019
Results first posted
Jan 2, 2020
Last update
Aug 4, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 4, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03258710
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Aug 23, 2017
Start date
Oct 2, 2017
Primary completion
Dec 28, 2018
Completion
Nov 25, 2019
Results posted
Jan 2, 2020
Last update
Aug 4, 2020

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2020. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Tenofovir

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