ClinicalTrials.gg
TerminatedNCT03267940Updated Feb 7, 2020Results posted

Study of PEGPH20 With Cisplatin (CIS) and Gemcitabine (GEM); PEGPH20 With Atezolizumab (ATEZO), CIS, and GEM; and CIS and GEM Alone in Participants With Previously Untreated, Unresectable, Locally Advanced, or Metastatic Intrahepatic and Extrahepatic Cholangiocarcinoma and Gallbladder Adenocarcinoma

A Phase 1 interventional study of PEGPH20 and CIS in Cholangiocarcinoma Non-resectable, Cholangiocarcinoma, Intrahepatic and Cholangiocarcinoma, Extrahepatic, sponsored by Halozyme Therapeutics. Terminated at 36 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-02-07.

Sponsored by Halozyme Therapeutics · Phase 1, Interventional, and Treatment

Why this study was terminated
Sponsor decision
Phase
Phase 1
Study type
Interventional
Enrollment
85
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The study is being conducted to assess the safety and tolerability of (1) PEGPH20 in combination with CIS and GEM (PEGCISGEM), and (2) PEGPH20 in combination with CIS, GEM, and atezolizumab (PEGCISGEMATEZO) compared with (3) cisplatin and gemcitabine (CISGEM).

Read the detailed description

The study will have a Run-in portion and an Expansion portion. The Run-in portion will be used to evaluate the safety profile of the PEGCISGEM and PEGCISGEMATEZO treatments prior to evaluating the efficacy and safety of PEGCISGEM and PEGCISGEMATEZO treatments compared with CISGEM treatment in the Expansion portion of the study. Treatment in both portions of the study will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity.

02

Conditions studied

  • Cholangiocarcinoma Non-resectable
  • Cholangiocarcinoma, Intrahepatic
  • Cholangiocarcinoma, Extrahepatic
  • Gallbladder Adenocarcinoma

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Keywords

  • Extrahepatic Cholangiocarcinoma
  • Intrahepatic Cholangiocarcinoma
  • Gallbladder Adenocarcinoma
  • PEGylated Recombinant Human Hyaluronidase
  • PEGylated Recombinant Human Hyaluronidase with atezolizumab
03

In context

Cholangiocarcinoma

824 studies on the registry are indexed under Cholangiocarcinoma; 287 are open to participants now.

This study's enrollment of 85 is above the median of 50 across 623 interventional studies indexed under Cholangiocarcinoma.

Browse Cholangiocarcinoma studies →

Lead sponsor

Halozyme Therapeutics is the lead sponsor of 33 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
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

For both portions of the study, participants must satisfy all of the following inclusion criteria to be enrolled in the study:

  • Written Institutional Review Board/Ethics Committee-approved form (ICF), signed by participant or legally authorized representative.
  • Participants must be determined to have confirmed unresectable, locally advanced or adenocarcinoma of the intra- and/or extra-hepatic bile ducts and/or gallbladder. Participants must have sufficient tissue with architectural integrity, including tumor and associated stroma, available for retrospective biomarker testing.
  • One or more lesions measurable on computed tomography (CT) scan/magnetic resonance imaging (MRI) scan per (RECIST) version 1.1 (v1.1).
  • Participants having (ECOG) Performance Status of 0 to 1.
  • ≥3 months.
  • Males and females aged ≥18 years.
  • Screening clinical laboratory values within pre-determined parameters
  • Female participants of (WOCBP) must have a negative urine or serum pregnancy test within 7 days before Day 1 (first dose of study medication).
  • For WOCBP and for men, agreement to use a highly effective method from the time of screening throughout the study until 5 months (WOCBP) or 6 months (men) after administration of the last dose of any study medication. Highly effective contraceptive methods consist of prior sterilization, intrauterine device (IUD), intrauterine hormone releasing system (IUS), oral or injectable contraceptives, barrier methods, and/or true sexual abstinence.

Exclusion criteria

Exclusion Criteria:

Participants are ineligible for enrollment if they meet any of the following exclusion criteria:

  • Clinical evidence of deep vein thrombosis or pulmonary embolism present during the screening period
  • Class III or IV cardiac disease, atrial fibrillation, unstable angina, or myocardial infarction within the past 12 months before screening.
  • Participants with known
  • History of cerebrovascular accident or
  • History of active bleeding within the last 3 months prior to screening requiring transfusion.
  • Participants must have received no previous radiotherapy, surgery, chemotherapy or therapy for treatment of or locally advanced disease.
  • Intolerance to non-steroidal anti-inflammatory drugs (NSAIDs).
  • Active virus (HBV) infection, defined as having a positive hepatitis B surface antigen (HBsAg) test at screening
  • Active virus (HCV) infection, defined as having a positive HCV antibody test at screening
  • History of:

    1. Idiopathic pulmonary fibrosis, organizing pneumonia (for example, bronchiolitis obliterans), drug-induced pneumonitis, or idiopathic pneumonitis, or evidence of active pneumonitis on screening chest CT scan. History of radiation pneumonitis in the radiation field (fibrosis) is permitted.
    2. Or known cases of hepatobiliary diseases (for example, primary biliary cholangitis, primary sclerosing cholangitis, history of immune-mediated cholangitis);

      Participants with cholangitis attributed to infectious etiology (for example, ascending cholangitis, bacterial cholangitis) are eligible if the infection has been fully resolved prior to the screening visit.

    3. Or known cases of drug-induced hepatobiliary toxicities.
  • Active or history of diseases
  • Uncontrolled hypercalcemia
Terms in these criteria, in plain language(15)

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.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

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

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

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.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

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.

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.

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.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
85 participants (actual)

Study arms

  • Experimental
    Run-in Portion: PEGCISGEM

    Participants will receive 3.0 micrograms per kilogram (mcg/kg) PEGPH20 on Days 1, 8, and 15 in combination with 25 milligrams per meter square (mg/m\^2) of CIS plus 1000 mg/m\^2 of GEM administered on Days 2 and 9 of each 21-day cycle by intravenous (IV) infusion. Treatment will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity.

    Drug: PEGPH20 · Drug: CIS · Drug: GEM

  • Experimental
    Run-in Portion: PEGCISGEMATEZO

    After 6 participants from the PEGCISGEM arm are treated for at least 1 cycle without significant toxicities, new participants will be enrolled in this arm to receive 3.0 mcg/kg PEGPH20 on Days 1, 8, and 15 in combination with 1200 mg ATEZO (administered 1 to 3 hours after PEGPH20 on Day 1 of each 21-day cycle) plus 25 mg/m\^2 of CIS and 1000 mg/m\^2 GEM on Days 2 and 9 of each 21-day cycle by IV infusion. Treatment will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity.

    Drug: PEGPH20 · Drug: CIS · Drug: GEM · Drug: Atezolizumab

  • Experimental
    Expansion Portion: PEGCISGEM

    After the Investigators and the Sponsor considers the study treatment with PEGCISGEM during the Run-in portion safe and tolerable, new participants will be enrolled to receive 3.0 mcg/kg PEGPH20 on Days 1, 8, and 15 in combination with 25 mg/m\^2 CIS and 1000 mg/m\^2 GEM on Days 2 and 9 of each 21-day cycle by IV infusion. Treatment will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity.

    Drug: PEGPH20 · Drug: CIS · Drug: GEM

  • Experimental
    Expansion Portion: PEGCISGEMATEZO Twice Weekly

    After the Investigators and the Sponsor considers the study treatment with PEGCISGEM during the Run-in portion safe and tolerable, new participants will be enrolled to receive 3.0 mcg/kg PEGPH20 on Days 1, 8, and 15 in combination with 1200 mg ATEZO (administered 1 to 3 hours after PEGPH20 on Day 1 of each 21-day cycle) plus 25 mg/m\^2 of CIS and 1000 mg/m\^2 GEM on Days 2 and 9 of each 21-day cycle by IV infusion. Treatment will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity.

    Drug: PEGPH20 · Drug: CIS · Drug: GEM · Drug: Atezolizumab

  • Experimental
    Expansion Portion: PEGCISGEMATEZO Once Weekly/Twice Weekly

    After the implementation of Protocol Amendment #3 and as communicated to the Investigators via a letter dated 22 March 2019, participants will receive 3.0 mcg/kg PEGPH20 on Days 1, 4, 8, 11, 15 and 18 in combination with 1200 mg ATEZO (administered 1 to 3 hours after PEGPH20 on Day 1 Cycle 1) plus 25 mg/m\^2 of CIS and 1000 mg/m\^2 GEM on Days 2 and 9 of Cycle 1 (cycle length = 21 days) by IV infusion. Participants will receive 3.0 mcg/kg PEGPH20 on Days 1, 8, and 15 in combination with 1200 mg ATEZO (administered 1 to 3 hours after PEGPH20 on Day 1 of each 21-day cycle) plus 25 mg/m\^2 of CIS and 1000 mg/m\^2 GEM on Days 2 and 9 of each 21-day cycle from Cycle 2 and beyond by IV infusion. Treatment will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity.

    Drug: PEGPH20 · Drug: CIS · Drug: GEM · Drug: Atezolizumab

  • Active comparator
    Expansion Portion: CISGEM

    After the Investigators and the Sponsor considers the study treatment with PEGCISGEM during the run-in portion safe and tolerable, new participants will be enrolled to receive 25 mg/m\^2 CIS and 1000 mg/m\^2 GEM on Days 1 and 8 of each 21-day cycle by IV infusion. Treatment will continue until death, withdrawal of consent from the study, disease progression, or unacceptable toxicity.

    Drug: CIS · Drug: GEM

Interventions

  • PEGPH20 will be administered as per the schedule specified in the respective arms.

  • DrugCIS

    CIS will be administered as per the schedule specified in the respective arms.

  • DrugGEM

    GEM will be administered as per the schedule specified in the respective arms.

  • Atezolizumab will be administered as per the schedule specified in the respective arms.

06

What researchers measure

Primary outcomes

  1. Run-in Portion: Number of Participants With Adverse Events (AEs)

    An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through 30 days after the end of treatment visit (maximum exposure: 508 days)

  2. Run-in Portion: Number of Participants With Clinically Significant Abnormalities in Laboratory Parameters (Hematology and Blood Chemistry)

    Laboratory parameters evaluation included hematology (hemoglobin, hematocrit, red blood cell count, white blood cell \[WBC\] count, neutrophils \[ANC\], lymphocytes, monocytes, eosinophils, basophils, granulocytes, mean corpuscular hemoglobin, mean corpuscular volume, and platelet count) and blood chemistry (glucose, blood urea nitrogen \[BUN\], albumin, total bilirubin, alkaline phosphatase, aspartate aminotransferase \[AST\], alanine aminotransferase \[ALT\], electrolytes \[including sodium, potassium, calcium, magnesium, chloride, and bicarbonate\], and creatinine) evaluation. Clinical significance was defined as per Investigator's discretion. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through the end of treatment visit (maximum exposure: 508 days)

  3. Run-in Portion: Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG) and Vital Signs

    Clinical significance of ECGs was defined as per Investigator's discretion. Assessment of vital signs was to include the measurement of blood pressure (systolic and diastolic), pulse, respiratory rate, and body temperature. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through the end of treatment visit (maximum exposure: 508 days)

  4. Run-in Portion: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication

    Number of participants with AEs leading to dose reduction or interruption of any study medication (PEGPH20, CIS, GEM, or ATEZO) was reported. An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through the end of treatment visit (maximum exposure: 508 days)

  5. Expansion Portion: Objective Response Rate (ORR) Based on Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1: Percentage of Participants With Objective Response

    ORR was defined as percentage of participants who achieved either a complete response (CR) or partial response (PR). CR was defined as disappearance of all target and non-target lesions; Any pathological or non-pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

    Time frame: From date of randomization until the date of first documented progression of disease or date of death from any cause, whichever came first (maximum exposure: 421 days)

Secondary outcomes

  1. Run-in Portion: ORR Based on RECIST v1.1: Percentage of Participants With Objective Response

    ORR was defined as percentage of participants who achieved either a CR or PR. CR was defined as disappearance of all target and non-target lesions; Any pathological or non-pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

    Time frame: From date of randomization until the date of first documented progression of disease or date of death from any cause, whichever came first (maximum exposure: 508 days)

  2. Expansion Portion: Duration of Response (DOR) Based on RECIST v1.1

    DOR was considered the time from date of the first CR or PR until the date of first documentation of disease progression or date of death based on RECIST v1.1 for target lesions assessed by MRI/CT scans, as determined by independent radiologic review. CR was defined as the disappearance of all target lesions. PR was defined as at least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR.

    Time frame: From date of the first CR or PR until the date of first documentation of disease progression or date of death, whichever came first (maximum exposure: 421 days)

  3. Expansion Portion: Progression-Free Survival (PFS) Based on RECIST v1.1

    PFS was based on RECIST v1.1 for target lesions assessed by MRI/CT scans, as determined by independent radiologic review and was defined as the time from randomization to radiological disease progression or death. Progressive disease (PD) was defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum of diameters on or prior to the current assessment (including baseline). In addition to the relative increase of 20%, the sum of diameters must also demonstrate an absolute increase of greater than or equal to (≥) 5 mm.

    Time frame: From date of randomization until date of progressive disease or death from any cause, whichever came first (maximum exposure: 421 days)

  4. Expansion Portion: Disease Control Rate (DCR) Based on RECIST v1.1: Percentage of Participants With CR, PR or Stable Disease (SD)

    DCR was defined as the percentage of participants with CR, PR, or SD based on RECIST v1.1 for target lesions assessed by MRI/CT scans, as determined by independent radiologic review. CR was defined as the disappearance of all target lesions. PR was defined as at least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR. SD was defined as neither sufficient shrinkage to qualify for CR or PR nor sufficient increase to qualify for PD.

    Time frame: From date of randomization until date of progressive disease or death from any cause, whichever came first (maximum exposure: 421 days)

  5. Expansion Portion: Overall Survival (OS)

    Overall survival was defined as the time from randomization until death from any cause.

    Time frame: From randomization until death from any cause (maximum exposure: 421 days)

  6. Expansion Portion: OS by PD-L1 Expression Levels

    Overall survival was defined as the time from randomization until death from any cause.

    Time frame: From randomization until death from any cause (maximum exposure: 421 days)

  7. Expansion Portion: Number of Participants With AEs

    An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through the end of treatment visit (maximum exposure: 421 days)

  8. Expansion Portion: Number of Participants With Clinically Significant Abnormalities in Clinical Laboratory Parameters (Hematology and Blood Chemistry)

    Laboratory parameters evaluation included hematology (hemoglobin, hematocrit, red blood cell count, WBC count, neutrophils \[ANC\], lymphocytes, monocytes, eosinophils, basophils, granulocytes, mean corpuscular hemoglobin, mean corpuscular volume, and platelet count) and blood chemistry (glucose, BUN, albumin, total bilirubin, alkaline phosphatase, AST, ALT, electrolytes \[including sodium, potassium, calcium, magnesium, chloride, and bicarbonate\], and creatinine) evaluation. Clinical significance was defined as per Investigator's discretion. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through the end of treatment visit (maximum exposure: 421 days)

  9. Expansion Portion: Number of Participants With Clinically Significant Abnormalities in ECG and Vital Signs

    Clinical significance of ECGs was defined as per Investigator's discretion. Assessment of vital signs was to include the measurement of blood pressure (systolic and diastolic), pulse, respiratory rate, and body temperature. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through the end of treatment visit (maximum exposure: 421 days)

  10. Expansion Period: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication

    Number of participants with AEs leading to dose reduction or interruption of any study medication (PEGPH20, CIS, GEM, or ATEZO) was reported. An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Time frame: From first exposure to study drug through 30 days after the end of treatment visit (maximum exposure: 421 days)

  11. Run-in and Expansion Portion : Maximum Observed Plasma Concentration (Cmax) of PEGPH20, ATEZO, GEM, and CIS

    Plasma pharmacokinetic (PK) data were planned to be analyzed using a noncompartmental analysis approach.

    Time frame: PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and end of treatment (EOT) (maximum exposure: 508 days for run-in and 421 days for expansion); CIS and GEM: Cycle 1: multiple timepoints on Days 2,9

  12. Run-in and Expansion Portion : Minimum Observed Plasma Concentration (Cmin) of PEGPH20 and ATEZO

    PK data were planned to be analyzed using a noncompartmental analysis approach.

    Time frame: PEGPH20 and ATEZO: Treatment Cycle 1: multiple timepoints on Days 1, 2, 8, 9, and 15; ATEZO: Day 1 of subsequent cycles and EOT visit (7 days after last 21-day cycle) (maximum exposure: 508 days for run-in portion and 421 days for expansion portion)

  13. Run-in and Expansion Portion : Elimination Rate Constant (Kel) of PEGPH20

    PK data were planned to be analyzed using a noncompartmental analysis approach.

    Time frame: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, and 15

  14. Run-in and Expansion Portion : Terminal Elimination Plasma Half-life (t1/2) of PEGPH20, ATEZO, GEM, and CIS

    PK data were planned to be analyzed using a noncompartmental analysis approach.

    Time frame: PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

  15. Run-in and Expansion Portion : Clearance (CL) of PEGPH20, ATEZO, GEM, and CIS

    PK data were planned to be analyzed using a noncompartmental analysis approach.

    Time frame: PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

  16. Run-in and Expansion Portion : Volume of Distribution (Vd) of PEGPH20, ATEZO, GEM, and CIS

    PK data were planned to be analyzed using a noncompartmental analysis approach.

    Time frame: PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

  17. Run-in and Expansion Portion: Area Under the Concentration Time Curve (AUC) of PEGPH20, ATEZO, GEM, and CIS

    PK data were planned to be analyzed using a noncompartmental analysis approach.

    Time frame: PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

07

Results

Posted Feb 7, 2020
Limitations and caveats
The study was terminated prematurely by the Sponsor due to stopping the clinical development of PEGPH20 in all indications based on negative pivotal data in metastatic pancreatic cancer.

Participant flow

The study was conducted in 2 portions: Run-in portion and Expansion portion.

Run-in Portion (Max. Exposure: 508 Days)
Participant flow — Run-in Portion (Max. Exposure: 508 Days)
MilestoneRun-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEM
Started990000
Received at least 1 dose of study drug990000
Completed120000
Not completed870000
Withdrew: Investigator or sponsor decision120000
Withdrew: Withdrawal by subject010000
Withdrew: Sponsor terminated study010000
Withdrew: Death730000
Expansion (Maximum Exposure: 421 Days)
Participant flow — Expansion (Maximum Exposure: 421 Days)
MilestoneRun-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEM
Started0024221110
Received at least 1 dose of study drug0024221110
Completed003010
Not completed0021221010
Withdrew: Other than specified000320
Withdrew: Investigator or sponsor decision002120
Withdrew: Withdrawal by subject002111
Withdrew: Sponsor terminated study007453
Withdrew: Death00101306

Outcome measures

PrimaryRun-in Portion: Number of Participants With Adverse Events (AEs)

An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through 30 days after the end of treatment visit (maximum exposure: 508 days)
Reported as:
Count of participants · Participants
Run-in Portion: Number of Participants With Adverse Events (AEs)
ParticipantsRun-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZO
Run-in Portion: Number of Participants With Adverse Events (AEs)99
PrimaryRun-in Portion: Number of Participants With Clinically Significant Abnormalities in Laboratory Parameters (Hematology and Blood Chemistry)

Laboratory parameters evaluation included hematology (hemoglobin, hematocrit, red blood cell count, white blood cell \[WBC\] count, neutrophils \[ANC\], lymphocytes, monocytes, eosinophils, basophils, granulocytes, mean corpuscular hemoglobin, mean corpuscular volume, and platelet count) and blood chemistry (glucose, blood urea nitrogen \[BUN\], albumin, total bilirubin, alkaline phosphatase, aspartate aminotransferase \[AST\], alanine aminotransferase \[ALT\], electrolytes \[including sodium, potassium, calcium, magnesium, chloride, and bicarbonate\], and creatinine) evaluation. Clinical significance was defined as per Investigator's discretion. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through the end of treatment visit (maximum exposure: 508 days)
Reported as:
Count of participants · Participants
Run-in Portion: Number of Participants With Clinically Significant Abnormalities in Laboratory Parameters (Hematology and Blood Chemistry)
ParticipantsRun-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZO
Run-in Portion: Number of Participants With Clinically Significant Abnormalities in Laboratory Parameters (Hematology and Blood Chemistry)00
PrimaryRun-in Portion: Number of Participants With Clinically Significant Abnormalities in Electrocardiogram (ECG) and Vital Signs

Clinical significance of ECGs was defined as per Investigator's discretion. Assessment of vital signs was to include the measurement of blood pressure (systolic and diastolic), pulse, respiratory rate, and body temperature. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through the end of treatment visit (maximum exposure: 508 days)

No measurements were reported for this outcome.

PrimaryRun-in Portion: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication

Number of participants with AEs leading to dose reduction or interruption of any study medication (PEGPH20, CIS, GEM, or ATEZO) was reported. An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through the end of treatment visit (maximum exposure: 508 days)
Reported as:
Count of participants · Participants
Run-in Portion: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication
ParticipantsRun-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZO
Run-in Portion: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication67
PrimaryExpansion Portion: Objective Response Rate (ORR) Based on Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1: Percentage of Participants With Objective Response

ORR was defined as percentage of participants who achieved either a complete response (CR) or partial response (PR). CR was defined as disappearance of all target and non-target lesions; Any pathological or non-pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame:
From date of randomization until the date of first documented progression of disease or date of death from any cause, whichever came first (maximum exposure: 421 days)

No measurements were reported for this outcome.

SecondaryRun-in Portion: ORR Based on RECIST v1.1: Percentage of Participants With Objective Response

ORR was defined as percentage of participants who achieved either a CR or PR. CR was defined as disappearance of all target and non-target lesions; Any pathological or non-pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame:
From date of randomization until the date of first documented progression of disease or date of death from any cause, whichever came first (maximum exposure: 508 days)

No measurements were reported for this outcome.

SecondaryExpansion Portion: Duration of Response (DOR) Based on RECIST v1.1

DOR was considered the time from date of the first CR or PR until the date of first documentation of disease progression or date of death based on RECIST v1.1 for target lesions assessed by MRI/CT scans, as determined by independent radiologic review. CR was defined as the disappearance of all target lesions. PR was defined as at least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR.

Time frame:
From date of the first CR or PR until the date of first documentation of disease progression or date of death, whichever came first (maximum exposure: 421 days)

No measurements were reported for this outcome.

SecondaryExpansion Portion: Progression-Free Survival (PFS) Based on RECIST v1.1

PFS was based on RECIST v1.1 for target lesions assessed by MRI/CT scans, as determined by independent radiologic review and was defined as the time from randomization to radiological disease progression or death. Progressive disease (PD) was defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum of diameters on or prior to the current assessment (including baseline). In addition to the relative increase of 20%, the sum of diameters must also demonstrate an absolute increase of greater than or equal to (≥) 5 mm.

Time frame:
From date of randomization until date of progressive disease or death from any cause, whichever came first (maximum exposure: 421 days)

No measurements were reported for this outcome.

SecondaryExpansion Portion: Disease Control Rate (DCR) Based on RECIST v1.1: Percentage of Participants With CR, PR or Stable Disease (SD)

DCR was defined as the percentage of participants with CR, PR, or SD based on RECIST v1.1 for target lesions assessed by MRI/CT scans, as determined by independent radiologic review. CR was defined as the disappearance of all target lesions. PR was defined as at least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR. SD was defined as neither sufficient shrinkage to qualify for CR or PR nor sufficient increase to qualify for PD.

Time frame:
From date of randomization until date of progressive disease or death from any cause, whichever came first (maximum exposure: 421 days)

No measurements were reported for this outcome.

SecondaryExpansion Portion: Overall Survival (OS)

Overall survival was defined as the time from randomization until death from any cause.

Time frame:
From randomization until death from any cause (maximum exposure: 421 days)

No measurements were reported for this outcome.

SecondaryExpansion Portion: OS by PD-L1 Expression Levels

Overall survival was defined as the time from randomization until death from any cause.

Time frame:
From randomization until death from any cause (maximum exposure: 421 days)

No measurements were reported for this outcome.

SecondaryExpansion Portion: Number of Participants With AEs

An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through the end of treatment visit (maximum exposure: 421 days)
Reported as:
Count of participants · Participants
Expansion Portion: Number of Participants With AEs
ParticipantsExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEM
Expansion Portion: Number of Participants With AEs24221010
SecondaryExpansion Portion: Number of Participants With Clinically Significant Abnormalities in Clinical Laboratory Parameters (Hematology and Blood Chemistry)

Laboratory parameters evaluation included hematology (hemoglobin, hematocrit, red blood cell count, WBC count, neutrophils \[ANC\], lymphocytes, monocytes, eosinophils, basophils, granulocytes, mean corpuscular hemoglobin, mean corpuscular volume, and platelet count) and blood chemistry (glucose, BUN, albumin, total bilirubin, alkaline phosphatase, AST, ALT, electrolytes \[including sodium, potassium, calcium, magnesium, chloride, and bicarbonate\], and creatinine) evaluation. Clinical significance was defined as per Investigator's discretion. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through the end of treatment visit (maximum exposure: 421 days)
Reported as:
Count of participants · Participants
Expansion Portion: Number of Participants With Clinically Significant Abnormalities in Clinical Laboratory Parameters (Hematology and Blood Chemistry)
ParticipantsExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEM
Expansion Portion: Number of Participants With Clinically Significant Abnormalities in Clinical Laboratory Parameters (Hematology and Blood Chemistry)0000
SecondaryExpansion Portion: Number of Participants With Clinically Significant Abnormalities in ECG and Vital Signs

Clinical significance of ECGs was defined as per Investigator's discretion. Assessment of vital signs was to include the measurement of blood pressure (systolic and diastolic), pulse, respiratory rate, and body temperature. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through the end of treatment visit (maximum exposure: 421 days)

No measurements were reported for this outcome.

SecondaryExpansion Period: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication

Number of participants with AEs leading to dose reduction or interruption of any study medication (PEGPH20, CIS, GEM, or ATEZO) was reported. An AE is any unfavorable or unintended sign, symptom, or disease temporally associated with the use of a pharmaceutical product (for example, study drug), whether or not considered related to the pharmaceutical product. SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

Time frame:
From first exposure to study drug through 30 days after the end of treatment visit (maximum exposure: 421 days)
Reported as:
Count of participants · Participants
Expansion Period: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication
ParticipantsExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEM
Expansion Period: Number of Participants With AEs Leading to Dose Reduction or Interruption of Any Study Medication162147
SecondaryRun-in and Expansion Portion : Maximum Observed Plasma Concentration (Cmax) of PEGPH20, ATEZO, GEM, and CIS

Plasma pharmacokinetic (PK) data were planned to be analyzed using a noncompartmental analysis approach.

Time frame:
PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and end of treatment (EOT) (maximum exposure: 508 days for run-in and 421 days for expansion); CIS and GEM: Cycle 1: multiple timepoints on Days 2,9

No measurements were reported for this outcome.

SecondaryRun-in and Expansion Portion : Minimum Observed Plasma Concentration (Cmin) of PEGPH20 and ATEZO

PK data were planned to be analyzed using a noncompartmental analysis approach.

Time frame:
PEGPH20 and ATEZO: Treatment Cycle 1: multiple timepoints on Days 1, 2, 8, 9, and 15; ATEZO: Day 1 of subsequent cycles and EOT visit (7 days after last 21-day cycle) (maximum exposure: 508 days for run-in portion and 421 days for expansion portion)

No measurements were reported for this outcome.

SecondaryRun-in and Expansion Portion : Elimination Rate Constant (Kel) of PEGPH20

PK data were planned to be analyzed using a noncompartmental analysis approach.

Time frame:
Cycle 1: multiple timepoints on Days 1, 2, 8, 9, and 15

No measurements were reported for this outcome.

SecondaryRun-in and Expansion Portion : Terminal Elimination Plasma Half-life (t1/2) of PEGPH20, ATEZO, GEM, and CIS

PK data were planned to be analyzed using a noncompartmental analysis approach.

Time frame:
PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

No measurements were reported for this outcome.

SecondaryRun-in and Expansion Portion : Clearance (CL) of PEGPH20, ATEZO, GEM, and CIS

PK data were planned to be analyzed using a noncompartmental analysis approach.

Time frame:
PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

No measurements were reported for this outcome.

SecondaryRun-in and Expansion Portion : Volume of Distribution (Vd) of PEGPH20, ATEZO, GEM, and CIS

PK data were planned to be analyzed using a noncompartmental analysis approach.

Time frame:
PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

No measurements were reported for this outcome.

SecondaryRun-in and Expansion Portion: Area Under the Concentration Time Curve (AUC) of PEGPH20, ATEZO, GEM, and CIS

PK data were planned to be analyzed using a noncompartmental analysis approach.

Time frame:
PEGPH20 and ATEZO: Cycle 1: multiple timepoints on Days 1, 2, 8, 9, 15; ATEZO: Day 1 of subsequent cycles and EOT visit (maximum exposure: 508 days for run-in and 421 days for expansion portion); CIS and GEM: Cycle 1: multiple timepoints on Days 2, 9

No measurements were reported for this outcome.

Adverse events

Collected over From first exposure to study drug through 30 days after end of treatment visit (maximum exposure: 508 days for run-in portion and 421 days for expansion portion). Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Run-in Portion: PEGCISGEM7/9 (77.8%)6/9 (66.7%)9/9 (100%)
Run-in Portion: PEGCISGEMATEZO3/9 (33.3%)2/9 (22.2%)9/9 (100%)
Expansion Portion: PEGCISGEM10/24 (41.7%)11/24 (45.8%)24/24 (100%)
Expansion Portion: PEGCISGEMATEZO Twice Weekly13/22 (59.1%)16/22 (72.7%)22/22 (100%)
Expansion Portion: PEGCISGEMATEZO Once Weekly/Twice Weekly0/11 (0%)7/11 (63.6%)10/11 (90.9%)
Expansion Portion: CISGEM6/10 (60%)4/10 (40%)10/10 (100%)
Most frequent serious events
Showing 10 of 60
Most frequent serious events
EventRun-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEM
PyrexiaGeneral disorders0/90/92/245/222/111/10
AnaemiaBlood and lymphatic system disorders0/92/90/241/220/110/10
ThrombocytopeniaBlood and lymphatic system disorders1/92/90/241/220/110/10
VomitingGastrointestinal disorders2/90/90/241/220/111/10
CholangitisHepatobiliary disorders1/90/90/244/220/110/10
Blood bilirubin increasedInvestigations0/90/90/240/222/110/10
AstheniaGeneral disorders0/90/90/243/220/110/10
Febrile neutropeniaBlood and lymphatic system disorders1/90/90/240/220/110/10
LeukopeniaBlood and lymphatic system disorders0/91/90/240/220/110/10
NeutropeniaBlood and lymphatic system disorders0/91/91/241/220/110/10
Most frequent other events
Showing 10 of 230
Most frequent other events
EventRun-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEM
NauseaGastrointestinal disorders5/94/918/2411/223/119/10
FatigueGeneral disorders5/98/915/2413/222/116/10
AnaemiaBlood and lymphatic system disorders4/96/912/2415/223/118/10
Oedema peripheralGeneral disorders3/95/910/2410/223/113/10
ConstipationGastrointestinal disorders4/94/910/248/223/115/10
VomitingGastrointestinal disorders3/93/912/247/221/115/10
PyrexiaGeneral disorders1/91/96/2411/223/115/10
Platelet count decreasedInvestigations1/93/95/248/222/115/10
Muscle spasmsMusculoskeletal and connective tissue disorders3/92/911/248/222/112/10
ThrombocytopeniaBlood and lymphatic system disorders4/92/92/245/220/111/10

Baseline characteristics

Enrolled population included all participants enrolled in the Run-in portion and the Expansion portion of the study.

Age, Categorical
Age, Categorical(Participants)Run-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEMTotal
<=18 years0000000
Between 18 and 65 years7315104645
>=65 years269127440
Sex: Female, Male
Sex: Female, Male(Participants)Run-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEMTotal
Female621386843
Male3711145242
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Run-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEMTotal
Hispanic or Latino0001012
Not Hispanic or Latino98242111881
Unknown or Not Reported0100012
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Run-in Portion: PEGCISGEMRun-in Portion: PEGCISGEMATEZOExpansion Portion: PEGCISGEMExpansion Portion: PEGCISGEMATEZO Twice WeeklyExpansion Portion: PEGCISGEMATEZO Once Weekly/Twice WeeklyExpansion Portion: CISGEMTotal
American Indian or Alaska Native0000000
Asian44973431
Native Hawaiian or Other Pacific Islander0000000
Black or African American0100001
White5414147650
More than one race0000000
Unknown or Not Reported0011103
08

Study locations

36 sites
  • Mayo Clinic of Arizona
    Phoenix, Arizona 85054, United States
  • University of Arizona
    Tucson, Arizona 85724, United States
  • City of Hope
    Duarte, California 91010, United States
  • Scripps
    La Jolla, California 92037, United States
  • USC/Norris Comprehensive Cancer Center
    Los Angeles, California 90033, United States
  • University of California Irvine Division of Hematology-Oncology, Department of Medicine UC Irvine Health
    Orange, California 92868, United States
  • UC Davis
    Sacramento, California 95817, United States
  • UCLA - David Geffen School of Medicine
    Santa Monica, California 90404, United States
  • The Oncology Institute of Hope and Innovation
    Whittier, California 90603, United States
  • Yale Cancer Center
    New Haven, Connecticut 06511, United States
  • Lombardi Cancer Center, Georgetown University
    Washington, District of Columbia 20007, United States
  • Johns Hopkins
    Baltimore, Maryland 21287, United States
  • Beth Israel Deaconess Medical Center
    Boston, Massachusetts 02215, United States
  • Washington University School of Medicine
    Saint Louis, Missouri 63110, United States
  • Mount Sinai
    New York, New York 10029, United States
  • University of Rochester Medical Center
    Rochester, New York 14642, United States
  • Duke Cancer Institute
    Durham, North Carolina 27710, United States
  • Gabrail Cancer Center
    Canton, Ohio 44718, United States
  • University of Pittsburgh Cancer Institute
    Pittsburgh, Pennsylvania 15232, United States
  • Medical University of South Carolina
    Charleston, South Carolina 29425, United States
  • MD Anderson Cancer Center
    Houston, Texas 77030, United States
  • UT Health Cancer Center
    San Antonio, Texas 78229, United States
  • Huntsman Cancer Institute
    Salt Lake City, Utah 84112, United States
  • Virginia Mason
    Seattle, Washington 98101, United States
  • Seattle Cancer Care Alliance
    Seattle, Washington 98109, United States
  • Froedtert Hospital And Medical College
    Milwaukee, Wisconsin 53226, United States
  • Samsung Medical Center
    Seoul, Gangnam-gu 06351, Korea, Republic of
  • Korea University Guro Hospital
    Seoul, Guro-gu 08308, Korea, Republic of
  • Seoul National University Bundang Hospital
    Seongnam-si, Gyeonggi-do 13620, Korea, Republic of
  • Seoul National University Hospital
    Seoul, Jongno-gu 03080, Korea, Republic of
  • The Catholic University of Korea Seoul St. Mary's Hospital
    Seoul, Seocho-gu 06591, Korea, Republic of
  • Severance Hospital, Yonsei University Health System
    Seoul, Seodaemun-Gu 03722, Korea, Republic of
  • Asan Medical Center
    Seoul, Songpa-gu 05505, Korea, Republic of
  • Maharaj Nakorn Chiang Mai Hospital
    Chiang mai, Muang 50200, Thailand
  • King Chulalongkorn Memorial Hospital
    Bangkok, Patumwan 10330, Thailand
  • Prince of Songkla University
    Hat Yai, Songkla 90110, Thailand
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 7, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03267940
Responsible party
Sponsor
First posted
Aug 31, 2017
Start date
Oct 2, 2017
Primary completion
Nov 11, 2019
Completion
Nov 11, 2019
Results posted
Feb 7, 2020
Last update
Feb 7, 2020

Study contacts

VP, Medical, Regulatory and Drug Safety
study director · Halozyme Therapeutics

Oversight

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

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Studies of the drug tested here: PEGPH20

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