ClinicalTrials.gg
CompletedNCT03922633Updated Mar 15, 2021

A Single Intravenous Dose of E3112 in Japanese Healthy Adult Male Participants

A Phase 1 interventional study of E3112 and Placebo in Healthy Male Participants, sponsored by EA Pharma Co., Ltd.. Completed at 1 site in Japan. Open to male participants aged 20 Years to 44 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-03-15.

Sponsored by EA Pharma Co., Ltd. (part of Eisai Co., Ltd.) · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
20 Years to 44 Years
Sex
Male
01

Study summary

The purpose of this study is to evaluate the safety, tolerability, and pharmacokinetics after a single intravenous dose of E3112 in Japanese healthy adult male participants.

02

Conditions studied

  • Healthy Male Participants

Keywords

  • E3112
  • Phase 1
  • Pharmacokinetics
  • Japanese
03

In context

Lead sponsor

EA Pharma Co., Ltd. is the lead sponsor of 13 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 44 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes

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

  1. Non-smoking Japanese males aged 20 to 44 years at the time of written,
  2. (BMI) at screening is 18.5 or more but less than 25.0 kilogram per square metre (kg/m\^2)
  3. Written, informed consent to participate in the study based on the participant's own free will
  4. Willing and able to comply with the requirements in the study after being fully informed of the requirements

Exclusion criteria

Exclusion Criteria:

  1. Male participants with who and whose partner do not agree to practice medically appropriate (Note: throughout the study)
  2. A history or complication of malignant tumor, lymphoma, leukemia, or lymphoproliferative disorder, a disease requiring treatments within 8 weeks before the product treatment, or a history of a clinically significant infection within 4 weeks before the investigational product treatment
  3. With a psychiatric, digestive, hepatic, renal, respiratory, endocrine, hematologic, neural, or cardiovascular disease within 4 weeks before the investigational product treatment, a congenital metabolic abnormality, or otherwise a disease that may affect the drug assessments
  4. With a surgical history (e.g., resection of the liver, kidney, or digestive tract, etc.) at screening that may affect the pharmacokinetics of the investigational product
  5. Suspicion of having a clinically abnormal symptom or an organ impairment that requires treatments based on the history/complications at screening or physical findings, vital signs, findings, or laboratory values at screening or baseline
  6. Testing positive for (HIV) at screening
  7. A positive response to a qualitative test for virus surface antigen (HBs antigen), hepatitis B virus core antigen (HBc) antibody, virus (HCV) antibody, or syphilis
  8. Use of a prescription drug within 4 weeks before the investigational product treatment
  9. Use of an over-the-counter drug within 2 weeks before the investigational product treatment
  10. Receiving a vaccine within 4 weeks before the investigational product treatment
  11. Ongoing participation in another clinical study or use of an investigational product or device within 16 weeks before the investigational product treatment while participating in another clinical study
  12. Receiving blood transfusion within 12 weeks before the investigational product treatment, providing a whole-blood sample of 400 millilitre (mL) or more between 12 to 4 weeks before the investigational product treatment or a whole-blood sample of 200 mL or more within 4 weeks before the investigational product treatment, or giving blood components by pheresis within 2 weeks before the investigational product treatment
Terms in these criteria, in plain language(10)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Reproductive potential

Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.

Criteria about it usually ask 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.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

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 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.

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.

05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    Cohort 1 Group A: E3112 + Placebo

    E3112 intravenous infusion in treatment stage 1 followed by placebo intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

  • Experimental
    Cohort 1 Group B: Placebo + E3112

    Placebo intravenous infusion in treatment stage 1 followed by E3112 intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

  • Experimental
    Cohort 2 Group A: E3112 + Placebo

    E3112 intravenous infusion in treatment stage 1 followed by placebo intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

  • Experimental
    Cohort 2 Group B: Placebo + E3112

    Placebo intravenous infusion in treatment stage 1 followed by E3112 intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

  • Experimental
    Cohort 3 Group A: E3112 + Placebo

    E3112 intravenous infusion in treatment stage 1 followed by placebo intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

  • Experimental
    Cohort 3 Group B: Placebo + E3112

    Placebo intravenous infusion in treatment stage 1 followed by E3112 intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

  • Experimental
    Cohort 4 Group A: E3112 + Placebo

    E3112 intravenous infusion in treatment stage 1 followed by placebo intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

  • Experimental
    Cohort 4 Group B: Placebo + E3112

    Placebo intravenous infusion in treatment stage 1 followed by E3112 intravenous infusion in treatment stage 2. A washout period of 7 days will be maintained between the two treatment stages.

    Drug: E3112 · Other: Placebo

Interventions

  • DrugE3112

    Intravenous infusion.

  • OtherPlacebo

    Intravenous infusion.

06

What researchers measure

Primary outcomes

  1. Serum Concentrations of E3112

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  2. Change from Baseline in Serum Concentration of E3112

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  3. Peak Concentration (Cmax) of E3112

    Cmax is the maximum observed concentration that a drug achieves in a specified compartment or test area of the body after the drug has been administered.

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  4. Time to Peak Concentration (Tmax) of E3112

    Tmax is the time from dosing to reach the maximum observed concentration a drug achieves in a specified compartment or test area of the body after the drug has been administered.

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  5. Area Under the Concentration-time Curve (AUC 0-t) of E3112

    AUC 0-t is area under the concentration-time curve from time 0 to time of last quantifiable concentration for E3112.

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  6. Area Under the Concentration-time Curve (AUC∞) of E3112

    AUC∞ is area under the concentration-time curve from time 0 to infinity of E3112.

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  7. Half-life of Elimination (t1/2) of E3112

    t1/2 is the time required for the concentration of the drug to reach half of its original value.

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  8. Clearance (CL) of E3112

    CL is defined as the rate of drug elimination divided by the plasma concentration of the drug.

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

  9. Volume of Distribution (Vd) of E3112

    Vd is the theoretical volume that would be necessary to contain the total amount of an administered drug at the same concentration that it is observed in the blood plasma.

    Time frame: Day 1: 0-24 hours; Day 8: 0-24 hours

Secondary outcomes

  1. Number of Participants with Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)

    Time frame: Day 1 to Day 43

  2. Number of Participants with an Abnormal, Clinically Significant Hematology parameter value

    Time frame: Day 1 to Day 43

  3. Number of Participants with an Abnormal, Clinically Significant Clinical Chemistry Parameter Value

    Time frame: Day 1 to Day 43

  4. Number of Participants with an Abnormal, Clinically Significant Urine Value

    Time frame: Day 1 to Day 43

  5. Number of Participants with Clinically Significant Change in Vital Signs

    Time frame: Day 1 to Day 43

  6. Number of Participants with Clinically Significant Change in Electrocardiogram (ECG)

    Time frame: Day 1 to Day 43

  7. Number of Participants with Clinically Significant Change in Physical Findings

    Time frame: Day 1 to Day 43

  8. Number of Participants with Clinically Significant Change in Ophthalmological Findings

    Time frame: Day 1 to Day 43

  9. Percentage of Participants with Serum Anti-E3112 Antibodies

    Time frame: Day 1 to Day 43

07

Study locations

1 site
  • EA Pharma Trial Site
    Higashi, Fukuoka, Japan
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Apr 2019 to primary completion in May 2020, 12 months.

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

Registered
Apr 16, 2019
First posted
Apr 22, 2019
StartActual
Apr 22, 2019
Primary completionActual
May 20, 2020
CompletionActual
Oct 1, 2020
Last update
Mar 15, 2021
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 Mar 15, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03922633
Responsible party
Sponsor
First posted
Apr 22, 2019
Start date
Apr 22, 2019
Primary completion
May 20, 2020
Completion
Oct 1, 2020
Last update
Mar 15, 2021

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 Mar 2020. You cannot join it, but the record below documents what was studied.

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