search
Back to results

Study of Magrolimab (Hu5F9-G4) in Combination With Cetuximab in Participants With Solid Tumors and Advanced Colorectal Cancer

Primary Purpose

Solid Tumor, Colorectal Cancer

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Magrolimab
Cetuximab
Sponsored by
Gilead Sciences
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Solid Tumor

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Key Inclusion Criteria:

  • Histological Diagnosis

    • Phase 1b only: Advanced solid malignancy with an emphasis on colorectal cancer (CRC), head and neck, breast, pancreatic and ovarian cancers who have been treated with at least one regimen of prior systemic therapy, or who refuse systemic therapy, and for which there is no curative therapy available.
    • Phase 2:
  • KRAS Mutant CRC: Advanced KRAS mutant CRC who have progressed or are ineligible for both irinotecan and oxaliplatin based chemotherapy
  • KRAS Wild-Type CRC: Advanced KRAS wild type CRC who have progressed or are ineligible for fluoropyrimidine, irinotecan, and oxaliplatin based chemotherapy and who are relapsed or refractory to at least 1 prior systemic therapy that included an anti-epidermal growth factor receptor (EGFR) antibody, such as cetuximab, panitumumab or others.
  • Adequate performance status and hematological, liver, and kidney function
  • Phase 2 only: Willing to consent to 1 mandatory pre-treatment and 1 on-treatment tumor biopsy

Key Exclusion Criteria:

  • Active brain metastases
  • Prior treatment with cluster of differentiation 47 (CD47) or signal regulatory protein alpha (SIRPα) targeting agents.
  • Phase 2 only: second malignancy within the last 3 years.
  • Known active or chronic hepatitis B or C infection or human immunodeficiency virus (HIV)
  • Pregnancy or active breastfeeding

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Sites / Locations

  • UCLA
  • Stanford University
  • Wayne State University
  • START Midwest
  • UPENN
  • Sarah Cannon Research Institute
  • Md Anderson
  • START Center for Cancer Care

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Phase 1b Cohort 1: Magrolimab 10 mg/kg + Cetuximab 200 mg/m^2

Phase 1b Cohort 2: Magrolimab 10 mg/kg + Cetuximab 250 mg/m^2

Phase 1b Cohort 3: Magrolimab 20 mg/kg + Cetuximab 250 mg/m^2

Phase 1b Cohort 4: Magrolimab 30 mg/kg + Cetuximab 250 mg/m^2

Phase 1b Cohort 5: Magrolimab 45 mg/kg + Cetuximab 250 mg/m^2

Phase 2 Cohort 1 (KRASwt): Magrolimab 30 mg/kg + Cetuximab 250 mg/m^2

Phase 2 Cohort 2 (KRASm): Magrolimab 30 mg/kg + Cetuximab 250 mg/m^2

Phase 2 Cohort 3 (KRASm): Magrolimab 45 mg/kg + Cetuximab 250 mg/m^2

Arm Description

Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by intravenous (IV) infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 10 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 300 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 200 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented progressive disease (PD).

Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 10 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.

Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 20 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.

Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 30 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both were given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.

Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 45 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. Participants will also receive a loading dose of magrolimab 45 mg/kg on Day 11 of Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1 with weekly dose in Cycle 2 and bi-weekly dose in Cycle 3 onwards for magrolimab. Each cycle will consist of 4 weeks. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.

Participants with advanced colorectal cancer (CRC) who are KRAS wild type (KRASwt) and are refractory to anti-EGFRmAb therapy will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours) on Day 1 followed by a maintenance dose of magrolimab 30 mg/kg of body weight by IV infusion (approximately 2 hours) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1; Days 8 and 22 are removed from Cycle 2 onwards for magrolimab. Each cycle will consist of 4 weeks. Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.

Participants with advanced CRC with KRAS mutation (KRASm) who have progressed or are not candidates for oxaliplatin or irinotecan-based therapy will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 30 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1; Days 8 and 22 are removed from Cycle 2 onwards for magrolimab. Each cycle will consist of 4 weeks. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.

Participants with advanced CRC with KRASm who have progressed or are not candidates for oxaliplatin or irinotecan-based therapy will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approx. 3 hours) on Day 1 followed by a maintenance dose of magrolimab 45 mg/kg of body weight by IV infusion (approx. 2 hours) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. Participants will also receive a loading dose of magrolimab 45 mg/kg of body weight on Day 11 of Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1; Days 8 and 22 are removed from Cycle 3 onwards for magrolimab. Each cycle will consist of 4 weeks. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.

Outcomes

Primary Outcome Measures

Percentage of Participants With Dose Limiting Toxicities (DLT)
DLT was defined as any Grade (GR) 3 or greater adverse event (AE) that was assessed as related to study treatment with the exceptions of: GR 3: anemia (hemolytic anemia that is medically significant tis considered a DLT), indirect/unconjugated hyperbilirubinemia, electrolyte abnormalities, elevation in alanine aminotransferase, aspartate aminotransferase, or alkaline phosphatase that resolved to ≤ Grade 2 with supportive care within 1 week and is not associated with other clinically significant consequences; nausea, vomiting, or diarrhea that resolved to ≤ Grade 2 with supportive care within 72 hours; fatigue that resolved to ≤ Grade 2 within 2 weeks on study; drug-related infusion reactions in the absence of an optimal pretreatment regimen; tumor lysis syndrome or electrolyte disturbances, hypomagnesemia, that resolved to ≤ Grade 2 or baseline within 1 week; GR 3 or 4: lymphopenia or leukopenia.
Percentage of Participants Experiencing Treatment-Emergent Adverse Events (TEAEs)
An AE was any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. An AE was any unfavorable and unintended sign, symptom, disease, and/or laboratory or physiological observation that may or may not be related to the investigational medicinal product. A TEAE was defined as AEs worsening or occurring during or after a participant's first exposure to study drug and within 30 days after the last administration of study drug or initiation of new anticancer therapy, whichever occurred first.
Objective Response Rate (ORR) as Assessed by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)
Objective response rate was defined as the percentage of participants with objective response which consisted of complete response (CR)+ partial response (PR) determined by RECIST v 1.1. CR: Disappearance of all target and all non-target lesions and normalization of tumor marker level. All lymph nodes must be non-pathological in size (< 10 mm short axis). Any pathological lymph nodes (whether target or non-target) had a reduction in short axis to < 10 mm. PR: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Secondary Outcome Measures

Pharmacokinetic (PK) Parameter: Cmax of Magrolimab
Cmax is defined as the maximum concentration of drug.
PK Parameter: Tmax of Magrolimab
Tmax is defined as the time (observed time point) of Cmax.
PK Parameter: AUClast of Magrolimab
AUClast is defined as the concentration of drug from time zero to the last observable concentration.
PK Parameter: AUCtau of Magrolimab
AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).
Percentage of Participants With Anti-drug Antibodies (ADA)
Percentage of Participants With Positive ADA at any timepoint was reported.
Disease Control Rate (DCR) as Assessed by RECIST v1.1
DCR was defined as the percentage of participants with disease control which consisted of CR+PR+SD. CR: Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had a reduction in short axis to < 10 mm. PR: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. SD: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD), taking as reference the smallest sum diameters measured while on study. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum measured while on study (this included the baseline sum if that was the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Unequivocal progression of existing non-target lesions.
Duration of Response (DOR) as Assessed by RECIST v1.1
DOR was measured from when the first (objective) response was met (i.e., CR or PR) until the first date of objectively documented PD. Participants who did not have objectively PD was censored at their last documented progression-free date. CR: Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had a reduction in short axis to < 10 mm. PR: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum measured while on study (this included the baseline sum if that was the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Unequivocal progression of existing non-target lesions. Kaplan Meier estimate was used for analysis.
Progression Free Survival (PFS) as Assessed by RECIST v1.1
PFS was measured from first dose until the first date of objectively documented PD or death. Participants who did not have objectively documented PD and not died was censored at their last documented progression-free date. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum measured while on study (this included the baseline sum if that was the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Unequivocal progression of existing non-target lesions. Kaplan Meier estimate was used for analysis.
Overall Survival (OS)
OS was measured from first dose until death. Participants who did not die were censored at their last known alive date. Kaplan Meier estimate was used for analysis.

Full Information

First Posted
November 1, 2016
Last Updated
February 8, 2021
Sponsor
Gilead Sciences
Collaborators
California Institute for Regenerative Medicine (CIRM)
search

1. Study Identification

Unique Protocol Identification Number
NCT02953782
Brief Title
Study of Magrolimab (Hu5F9-G4) in Combination With Cetuximab in Participants With Solid Tumors and Advanced Colorectal Cancer
Official Title
A Phase 1b/2 Trial of Hu5F9-G4 in Combination With Cetuximab in Patients With Solid Tumors and Advanced Colorectal Cancer
Study Type
Interventional

2. Study Status

Record Verification Date
February 2021
Overall Recruitment Status
Completed
Study Start Date
November 2, 2016 (Actual)
Primary Completion Date
February 10, 2020 (Actual)
Study Completion Date
February 10, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Gilead Sciences
Collaborators
California Institute for Regenerative Medicine (CIRM)

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
The primary objectives of this study are: (Phase 1b) to investigate the safety and tolerability and to determine the recommended Phase 2 dose (RP2D) for magrolimab in combination with cetuximab; and (Phase 2) to evaluate overall response rate (ORR) of magrolimab in combination with cetuximab in participants with Kirsten rat sarcoma 2 viral oncogene homolog (KRAS) mutant and KRAS wild-type colorectal cancer (CRC).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Solid Tumor, Colorectal Cancer

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1, Phase 2
Interventional Study Model
Sequential Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
78 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Phase 1b Cohort 1: Magrolimab 10 mg/kg + Cetuximab 200 mg/m^2
Arm Type
Experimental
Arm Description
Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by intravenous (IV) infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 10 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 300 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 200 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented progressive disease (PD).
Arm Title
Phase 1b Cohort 2: Magrolimab 10 mg/kg + Cetuximab 250 mg/m^2
Arm Type
Experimental
Arm Description
Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 10 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.
Arm Title
Phase 1b Cohort 3: Magrolimab 20 mg/kg + Cetuximab 250 mg/m^2
Arm Type
Experimental
Arm Description
Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 20 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.
Arm Title
Phase 1b Cohort 4: Magrolimab 30 mg/kg + Cetuximab 250 mg/m^2
Arm Type
Experimental
Arm Description
Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 30 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1 and thereafter, weekly maintenance dose for both magrolimab and cetuximab, will start on Day 1. Each cycle will consist of 4 weeks (28 days). Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both were given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.
Arm Title
Phase 1b Cohort 5: Magrolimab 45 mg/kg + Cetuximab 250 mg/m^2
Arm Type
Experimental
Arm Description
Participants with solid tumor will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 45 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. Participants will also receive a loading dose of magrolimab 45 mg/kg on Day 11 of Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1 with weekly dose in Cycle 2 and bi-weekly dose in Cycle 3 onwards for magrolimab. Each cycle will consist of 4 weeks. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.
Arm Title
Phase 2 Cohort 1 (KRASwt): Magrolimab 30 mg/kg + Cetuximab 250 mg/m^2
Arm Type
Experimental
Arm Description
Participants with advanced colorectal cancer (CRC) who are KRAS wild type (KRASwt) and are refractory to anti-EGFRmAb therapy will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours) on Day 1 followed by a maintenance dose of magrolimab 30 mg/kg of body weight by IV infusion (approximately 2 hours) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1; Days 8 and 22 are removed from Cycle 2 onwards for magrolimab. Each cycle will consist of 4 weeks. Cetuximab will be administered 1 hour prior to magrolimab infusion on days when both are given. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.
Arm Title
Phase 2 Cohort 2 (KRASm): Magrolimab 30 mg/kg + Cetuximab 250 mg/m^2
Arm Type
Experimental
Arm Description
Participants with advanced CRC with KRAS mutation (KRASm) who have progressed or are not candidates for oxaliplatin or irinotecan-based therapy will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approximately 3 hours infusion) on Day 1 followed by a maintenance dose of magrolimab 30 mg/kg of body weight by IV infusion (approximately 2 hours infusion) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1; Days 8 and 22 are removed from Cycle 2 onwards for magrolimab. Each cycle will consist of 4 weeks. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.
Arm Title
Phase 2 Cohort 3 (KRASm): Magrolimab 45 mg/kg + Cetuximab 250 mg/m^2
Arm Type
Experimental
Arm Description
Participants with advanced CRC with KRASm who have progressed or are not candidates for oxaliplatin or irinotecan-based therapy will receive a priming dose of magrolimab 1 mg/kg of body weight by IV infusion (approx. 3 hours) on Day 1 followed by a maintenance dose of magrolimab 45 mg/kg of body weight by IV infusion (approx. 2 hours) weekly starting on Day 8 followed by Days 15 and 22 in combination with cetuximab at a loading dose of 400 mg/m^2 infused over 120-minutes on Day 8 followed by a weekly maintenance dose of 250 mg/m^2 infusions given over 60 minutes on Days 15 and 22, in Cycle 1. Participants will also receive a loading dose of magrolimab 45 mg/kg of body weight on Day 11 of Cycle 1. After Cycle 1, maintenance dose for both magrolimab and cetuximab will start on Day 1; Days 8 and 22 are removed from Cycle 3 onwards for magrolimab. Each cycle will consist of 4 weeks. Treatment will be administered until unacceptable toxicity, voluntary withdrawal, or documented PD.
Intervention Type
Drug
Intervention Name(s)
Magrolimab
Other Intervention Name(s)
Hu5F9-G4
Intervention Description
Administered intravenously
Intervention Type
Drug
Intervention Name(s)
Cetuximab
Other Intervention Name(s)
ERBITUX®
Intervention Description
Administered intravenously
Primary Outcome Measure Information:
Title
Percentage of Participants With Dose Limiting Toxicities (DLT)
Description
DLT was defined as any Grade (GR) 3 or greater adverse event (AE) that was assessed as related to study treatment with the exceptions of: GR 3: anemia (hemolytic anemia that is medically significant tis considered a DLT), indirect/unconjugated hyperbilirubinemia, electrolyte abnormalities, elevation in alanine aminotransferase, aspartate aminotransferase, or alkaline phosphatase that resolved to ≤ Grade 2 with supportive care within 1 week and is not associated with other clinically significant consequences; nausea, vomiting, or diarrhea that resolved to ≤ Grade 2 with supportive care within 72 hours; fatigue that resolved to ≤ Grade 2 within 2 weeks on study; drug-related infusion reactions in the absence of an optimal pretreatment regimen; tumor lysis syndrome or electrolyte disturbances, hypomagnesemia, that resolved to ≤ Grade 2 or baseline within 1 week; GR 3 or 4: lymphopenia or leukopenia.
Time Frame
From first dose up to Day 28
Title
Percentage of Participants Experiencing Treatment-Emergent Adverse Events (TEAEs)
Description
An AE was any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. An AE was any unfavorable and unintended sign, symptom, disease, and/or laboratory or physiological observation that may or may not be related to the investigational medicinal product. A TEAE was defined as AEs worsening or occurring during or after a participant's first exposure to study drug and within 30 days after the last administration of study drug or initiation of new anticancer therapy, whichever occurred first.
Time Frame
From first dose date up to last dose date plus 30 days (maximum: 15.3 months)
Title
Objective Response Rate (ORR) as Assessed by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)
Description
Objective response rate was defined as the percentage of participants with objective response which consisted of complete response (CR)+ partial response (PR) determined by RECIST v 1.1. CR: Disappearance of all target and all non-target lesions and normalization of tumor marker level. All lymph nodes must be non-pathological in size (< 10 mm short axis). Any pathological lymph nodes (whether target or non-target) had a reduction in short axis to < 10 mm. PR: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Time Frame
From Screening until 38.89 months (assessed on Day 1 of Cycle 3 then every 8 weeks [Q8W] from Cycle 5 onwards up to 38.89 months; 1 cycle = 4 weeks)
Secondary Outcome Measure Information:
Title
Pharmacokinetic (PK) Parameter: Cmax of Magrolimab
Description
Cmax is defined as the maximum concentration of drug.
Time Frame
Pre-magrolimab dose (within 12 hours) and 1-hour post-magrolimab dose (infusion duration = approximately 3 hours on Day 1 and 2 hours on other days) on Days 1 (Cycle 1 Day 1), 8 (Cycle 1 Day 8), and 29 (Cycle 2 Day 1) (1 cycle = 4 weeks)
Title
PK Parameter: Tmax of Magrolimab
Description
Tmax is defined as the time (observed time point) of Cmax.
Time Frame
Pre-magrolimab dose (within 12 hours) and 1-hour post-magrolimab dose (infusion duration = approximately 3 hours on Day 1 and 2 hours on other days) on Days 8 (Cycle 1 Day 8) and 29 (Cycle 2 Day 1) (1 cycle = 4 weeks)
Title
PK Parameter: AUClast of Magrolimab
Description
AUClast is defined as the concentration of drug from time zero to the last observable concentration.
Time Frame
Pre-magrolimab dose (within 12 hours) and 1-hour post-magrolimab dose (infusion duration = approximately 3 hours on Day 1 and 2 hours on other days) on Days 8 (Cycle 1 Day 8) and 29 (Cycle 2 Day 1) (1 cycle = 4 weeks)
Title
PK Parameter: AUCtau of Magrolimab
Description
AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).
Time Frame
Pre-magrolimab dose (within 12 hours) and 1-hour post-magrolimab dose (infusion duration = approximately 3 hours on Day 1 and 2 hours on other days) on Days 8 (Cycle 1 Day 8) and 29 (Cycle 2 Day 1) (1 cycle = 4 weeks)
Title
Percentage of Participants With Anti-drug Antibodies (ADA)
Description
Percentage of Participants With Positive ADA at any timepoint was reported.
Time Frame
Baseline; post-treatment (assessed continuously up to 30 days after last dose; maximum 15.3 months )
Title
Disease Control Rate (DCR) as Assessed by RECIST v1.1
Description
DCR was defined as the percentage of participants with disease control which consisted of CR+PR+SD. CR: Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had a reduction in short axis to < 10 mm. PR: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. SD: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD), taking as reference the smallest sum diameters measured while on study. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum measured while on study (this included the baseline sum if that was the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Unequivocal progression of existing non-target lesions.
Time Frame
From Screening until 38.89 months (assessed on Cycle 3 Day 1 then every 8 weeks from Cycle 5 onwards up to 38.89 months; 1 cycle = 4 weeks)
Title
Duration of Response (DOR) as Assessed by RECIST v1.1
Description
DOR was measured from when the first (objective) response was met (i.e., CR or PR) until the first date of objectively documented PD. Participants who did not have objectively PD was censored at their last documented progression-free date. CR: Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) had a reduction in short axis to < 10 mm. PR: At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum measured while on study (this included the baseline sum if that was the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Unequivocal progression of existing non-target lesions. Kaplan Meier estimate was used for analysis.
Time Frame
From first objective response until documented PD (assessed on Cycle 3 Day 1 then every 8 weeks from Cycle 5 onwards up to 38.89 months; 1 cycle = 4 weeks)
Title
Progression Free Survival (PFS) as Assessed by RECIST v1.1
Description
PFS was measured from first dose until the first date of objectively documented PD or death. Participants who did not have objectively documented PD and not died was censored at their last documented progression-free date. PD: At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum measured while on study (this included the baseline sum if that was the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Unequivocal progression of existing non-target lesions. Kaplan Meier estimate was used for analysis.
Time Frame
From first dose until documented PD/death (assessed on Cycle 3 Day 1 then every 8 weeks from Cycle 5 onwards up to 38.89 months; 1 cycle = 4 weeks)
Title
Overall Survival (OS)
Description
OS was measured from first dose until death. Participants who did not die were censored at their last known alive date. Kaplan Meier estimate was used for analysis.
Time Frame
From first dose until death (assessed on Cycle 3 Day 1 then every 8 weeks from Cycle 5 onwards up to 38.89 months; 1 cycle = 4 weeks)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Key Inclusion Criteria: Histological Diagnosis Phase 1b only: Advanced solid malignancy with an emphasis on colorectal cancer (CRC), head and neck, breast, pancreatic and ovarian cancers who have been treated with at least one regimen of prior systemic therapy, or who refuse systemic therapy, and for which there is no curative therapy available. Phase 2: KRAS Mutant CRC: Advanced KRAS mutant CRC who have progressed or are ineligible for both irinotecan and oxaliplatin based chemotherapy KRAS Wild-Type CRC: Advanced KRAS wild type CRC who have progressed or are ineligible for fluoropyrimidine, irinotecan, and oxaliplatin based chemotherapy and who are relapsed or refractory to at least 1 prior systemic therapy that included an anti-epidermal growth factor receptor (EGFR) antibody, such as cetuximab, panitumumab or others. Adequate performance status and hematological, liver, and kidney function Phase 2 only: Willing to consent to 1 mandatory pre-treatment and 1 on-treatment tumor biopsy Key Exclusion Criteria: Active brain metastases Prior treatment with cluster of differentiation 47 (CD47) or signal regulatory protein alpha (SIRPα) targeting agents. Phase 2 only: second malignancy within the last 3 years. Known active or chronic hepatitis B or C infection or human immunodeficiency virus (HIV) Pregnancy or active breastfeeding Note: Other protocol defined Inclusion/Exclusion criteria may apply.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Gilead Study Director
Organizational Affiliation
Gilead Sciences
Official's Role
Study Director
Facility Information:
Facility Name
UCLA
City
Los Angeles
State/Province
California
ZIP/Postal Code
90404
Country
United States
Facility Name
Stanford University
City
Palo Alto
State/Province
California
ZIP/Postal Code
94305-5757
Country
United States
Facility Name
Wayne State University
City
Detroit
State/Province
Michigan
ZIP/Postal Code
48201
Country
United States
Facility Name
START Midwest
City
Grand Rapids
State/Province
Michigan
ZIP/Postal Code
49503
Country
United States
Facility Name
UPENN
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19104
Country
United States
Facility Name
Sarah Cannon Research Institute
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37203
Country
United States
Facility Name
Md Anderson
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Facility Name
START Center for Cancer Care
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78229
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No

Learn more about this trial

Study of Magrolimab (Hu5F9-G4) in Combination With Cetuximab in Participants With Solid Tumors and Advanced Colorectal Cancer

We'll reach out to this number within 24 hrs