Open Label Extension Study of Conatumumab and Ganitumab (AMG 479)

February 3, 2021 updated by: Amgen

A Phase 2 Open Label Extension Study of Conatumumab and AMG 479

The purpose of this protocol is to allow continued treatment with conatumumab and/or ganitumab, with or without chemotherapy, to participants who completed a separate Amgen-sponsored conatumumab or ganitumab study without disease progression whose previous studies were closed.

Study Overview

Study Type

Interventional

Enrollment (Actual)

12

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Szczecin, Poland, 70-891
        • Research Site
    • Cataluña
      • Barcelona, Cataluña, Spain, 08035
        • Research Site
    • California
      • Duarte, California, United States, 91010
        • Research Site
      • La Jolla, California, United States, 92093-0957
        • Research Site
    • Colorado
      • Denver, Colorado, United States, 80218
        • Research Site
    • Florida
      • Tampa, Florida, United States, 33612
        • Research Site
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • Research Site
    • New York
      • Buffalo, New York, United States, 14263
        • Research Site
    • Tennessee
      • Memphis, Tennessee, United States, 38120
        • Research Site
    • Texas
      • Houston, Texas, United States, 77030
        • Research Site
      • San Antonio, Texas, United States, 78229
        • Research Site
    • Utah
      • Ogden, Utah, United States, 84403
        • Research Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • To be enrolled in this study, subjects must be currently enrolled in a prior Amgen-sponsored conatumumab or AMG 479 study and are eligible according to the parent study to receive their next dose of conatumumab (with or without co-therapy), or AMG 479 alone.

Subjects must have their eligibility assessed for this study and be enrolled within 30 days of their last treatment on the parent protocol

Exclusion Criteria:

  • Discontinued from a conatumumab study due to an adverse event considered by the investigator to be related to conatumumab treatment, including intolerance to conatumumab
  • Subjects determined to have disease progression during their participation in the parent Amgen study
  • Woman or man with partner of childbearing potential not consenting to use adequate contraceptive precautions ie, double barrier contraceptive methods (eg, diaphragm plus condom), or abstinence during the course of the study and for 6 months after the last dose of protocol-specified therapy administration
  • Subject is pregnant or breast feeding, or planning to become pregnant within 6 months after the last dose of protocol-specified therapy administration
  • Male subject with a pregnant partner who is not willing to use a condom during treatment and for an additional 6 months after the last dose of protocol-specified therapy administration
  • Subject has previously entered this study
  • Subject will not be available for protocol required study visits, to the best of the subject and investigator's knowledge
  • Subject has any kind of disorder that, in the opinion of the investigator, may compromise the ability of the subject to give written informed consent and/or to comply with all required study procedures

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Conatumumab Monotherapy
Participants will continue to receive conatumumab every 2 weeks (Q2W) or every 3 weeks (Q3W) at the same dose and regimen as at the conclusion of the parent study.
Administered by intravenous infusion Q2W or Q3W.
Other Names:
  • AMG 655
Experimental: Conatumumab + Ganitumab
Participants will receive conatumumab and ganitumab by intravenous infusion at the same dose and regimen as at the conclusion of the parent study.
Administered by intravenous infusion Q2W or Q3W.
Other Names:
  • AMG 655
Administered by intravenous infusion Q3W or Q4W.
Other Names:
  • AMG 479
Experimental: Ganitumab Monotherapy
Participants will continue to receive ganitumab Q3W or every 4 weeks (Q4W) at the same dose and regimen as at the conclusion of the parent study.
Administered by intravenous infusion Q3W or Q4W.
Other Names:
  • AMG 479
Experimental: Conatumumab + mFOLFOX6 ± Bevacizumab
Participants will continue to receive conatumumab by intravenous infusion in addition to modified FOLFOX6 chemotherapy with or without bevacizumab.
Administered by intravenous infusion Q2W or Q3W.
Other Names:
  • AMG 655
The mFOLFOX6 regimen is a combination therapy of oxaliplatin 85 mg/m² administered as a 2-hour intravenous (IV) infusion on day 1 and leucovorin 400 mg/m² racemate or 200 mg/m² levo-leucovorin administered as a 2-hour infusion on day 1, followed by a loading dose of 5-fluorouracil (5-FU) 400 mg/m² IV bolus administered on day 1, then 5-FU 2400 mg/m² via ambulatory pump administered for a period of 46 to 48 hours every 14 days.
Other Names:
  • Oxaliplatin-Leucovorin-Fluorouracil chemotherapy
Administered at a dose of 5 mg/kg by intravenous infusion on day 1 of each 14 day cycle.
Other Names:
  • Avastin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Adverse Events
Time Frame: From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
An adverse event is defined as any untoward medical occurrence in a clinical trial participant, including worsening of a pre-existing medical condition. The event does not necessarily have a causal relationship with study treatment.
From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Number of Participants With Serious Adverse Events
Time Frame: From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.

A serious adverse event is defined as an adverse event that met at least 1 of the following serious criteria:

  • fatal,
  • life threatening (places the participant at immediate risk of death),
  • required in-patient hospitalization or prolongation of existing hospitalization,
  • resulted in persistent or significant disability/incapacity,
  • congenital anomaly/birth defect, and/or
  • other medically important serious event.
From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Maximum Change From Baseline in Blood Pressure
Time Frame: Baseline and day 1 of each treatment cycle (every 2, 3, or 4 weeks depending on dosing schedule) up to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Maximum change from baseline is defined for each participant as the maximum change from baseline value observed across all visits.
Baseline and day 1 of each treatment cycle (every 2, 3, or 4 weeks depending on dosing schedule) up to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Minimum Change From Baseline in Blood Pressure
Time Frame: Baseline and day 1 of each treatment cycle (every 2, 3, or 4 weeks depending on dosing schedule) up to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Minimum change from baseline is defined for each participant as the minimum change from baseline value observed across all visits.
Baseline and day 1 of each treatment cycle (every 2, 3, or 4 weeks depending on dosing schedule) up to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Number of Participants With CTCAE Grade 3 or Higher Clinical Laboratory Toxicities
Time Frame: From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Laboratory toxicities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 3.0.
From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Best Overall Response
Time Frame: Approximately every 6 months until end of treatment; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Radiological assessments to evaluate disease extent (with change compared to nadir from the parent protocol) were performed at regular intervals, at a minimum once every 6 months or more frequently if clinically indicated (starting from their last scan on the parent protocol), per standard of care (SOC) at each facility. Tumor response was assessed by the Investigator as either complete response, partial response, stable disease, or progressive disease.
Approximately every 6 months until end of treatment; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
Number of Participants With Disease Progression or Death Due to Disease Progression
Time Frame: From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.
From first dose of study drug in the extension study to 30 days after last dose; median duration of treatment with conatumumab was 1190.5 days and 1163.0 days for ganitumab.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 3, 2011

Primary Completion (Actual)

February 5, 2020

Study Completion (Actual)

February 5, 2020

Study Registration Dates

First Submitted

March 3, 2011

First Submitted That Met QC Criteria

March 31, 2011

First Posted (Estimate)

April 1, 2011

Study Record Updates

Last Update Posted (Actual)

February 21, 2021

Last Update Submitted That Met QC Criteria

February 3, 2021

Last Verified

February 1, 2021

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request

IPD Sharing Time Frame

Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication (or other new use) have been granted marketing authorization in both the US and Europe or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.

IPD Sharing Access Criteria

Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors, and if not approved, may be further arbitrated by a Data Sharing Independent Review Panel. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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