Description:
The primary objective of this study is to evaluate the efficacy of magrolimab in combination
with azacitidine compared to that of azacitidine plus placebo in previously untreated
participants with intermediate/high/very high risk myelodysplastic syndrome (MDS) by Revised
International Prognostic Scoring System (IPSS-R) as measured by complete remission (CR) and
overall survival (OS).
Title
- Brief Title: Magrolimab + Azacitidine Versus Azacitidine + Placebo in Untreated Participants With Myelodysplastic Syndrome (MDS)
- Official Title: ENHANCE: A Randomized, Double-blind, Multicenter Study Comparing Magrolimab in Combination With Azacitidine Versus Azacitidine Plus Placebo in Treatment-naïve Patients With Higher Risk Myelodysplastic Syndrome
Clinical Trial IDs
- ORG STUDY ID:
5F9009
- SECONDARY ID:
2020-004287-26
- NCT ID:
NCT04313881
Conditions
- Myelodysplastic Syndromes
Interventions
Drug | Synonyms | Arms |
---|
Magrolimab | Hu5F9-G4 | Magrolimab + Azacitidine |
Azacitidine | | Control Arm (Placebo + Azacitidine) |
Placebo | | Control Arm (Placebo + Azacitidine) |
Purpose
The primary objective of this study is to evaluate the efficacy of magrolimab in combination
with azacitidine compared to that of azacitidine plus placebo in previously untreated
participants with intermediate/high/very high risk myelodysplastic syndrome (MDS) by Revised
International Prognostic Scoring System (IPSS-R) as measured by complete remission (CR) and
overall survival (OS).
Trial Arms
Name | Type | Description | Interventions |
---|
Magrolimab + Azacitidine | Experimental | Participants will receive the following magrolimab and azacitidine dosing regimens:
Magrolimab:
Cycle 1: 1mg/kg priming dose on Days 1 and 4; 15 mg/kg on Day 8; and 30 mg/kg on Days 11, 15, and 22
Cycle 2: weekly doses of 30 mg/kg on Days 1, 8, 15, and 22
Cycle 3 and onward: 30 mg/kg every 2 weeks on Days 1 and 15
Azacitidine: 75 mg/m^2 on Days 1 to 7 (or Days 1 to 5 and 8 to 9) of each cycle | |
Control Arm (Placebo + Azacitidine) | Placebo Comparator | Participants will receive the following placebo and azacitidine dosing regimens:
Placebo:
Cycle 1: Days 1, 4, 8, 11, 15, and 22
Cycle 2: Days 1, 8, 15, and 22
Cycle 3 and onward: Days 1 and 15
Azacitidine: 75 mg/m^2 on Days 1 to 7 (or Days 1 to 5 and 8 to 9) of each cycle | |
Eligibility Criteria
Key Inclusion Criteria:
- Previously untreated individuals with intermediate to very high risk Myelodysplastic
Syndrome (MDS) by Revised International Prognostic Scoring System (IPSS-R)
- Adequate performance status and hematological, liver, and kidney function
Key Exclusion Criteria:
- Immediate eligibility for allogenic stem cell transplant (SCT), as determined by the
investigator, with an available donor
- Prior treatment with Cluster of Differentiation (CD) 47 or Signal-regulatory protein
alpha (SIRPα)-targeting agents
- Any prior antileukemic therapy for treatment of intermediate, high, very high risk MDS
per IPSS-R
- Contraindications to azacitidine
- Clinical suspicion of active central nervous system (CNS) involvement by MDS
- Known active or chronic hepatitis B or C infection or human immunodeficiency virus in
medical history
- Active hepatitis B virus and/or active hepatitis C virus, and/or HIV following testing
at screening
- Pregnancy or active breastfeeding
Note: Other protocol defined Inclusion/Exclusion criteria may apply.
Maximum Eligible Age: | N/A |
Minimum Eligible Age: | 18 Years |
Eligible Gender: | All |
Healthy Volunteers: | No |
Primary Outcome Measures
Measure: | Proportion of Participants with Complete Remission (CR) |
Time Frame: | Up to 24 months |
Safety Issue: | |
Description: | The CR rate is the proportion of participants who reach morphologic CR based on Investigator-assessed International Working Group (IWG) 2006 Myelodysplastic Syndrome (MDS) criteria (Cheson 2006) prior to initiation of any new MDS therapy. |
Secondary Outcome Measures
Measure: | Duration of CR |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | The duration of CR is measured from the time measurement criteria are first met for CR to the first date of relapse or death, whichever occurs earlier. |
Measure: | Objective Response Rate (ORR) |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | ORR is defined as the proportion of participants who reach objective response including CR, complete remission with partial hematologic recovery (CRh), Partial Remission (PR), marrow CR, or hematologic improvement per IWG 2006 MDS criteria (with the addition of CRh) prior to initiation of any new MDS therapy. |
Measure: | Duration of Response (DOR) |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | DOR is measured from the time measurement criteria are first met for objective response to the first date of relapse or death, whichever occurs earlier. |
Measure: | Red Blood Cell (RBC) Transfusion Independence Rate |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | The RBC transfusion independence rate is the proportion of participants who have a 56-day or longer period with no RBC transfusions. |
Measure: | Progression Free Survival (PFS) |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | The length of PFS is defined as the time from randomization to the date of documented disease progression, relapse, or death from any cause, whichever occurs first. |
Measure: | Event Free Survival (EFS) |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | The length of EFS is defined as the time from randomization to transformation to acute myeloid leukemia (AML) or death from any cause, whichever occurs first. |
Measure: | Minimal Residual Disease (MRD)-negative Response Rate |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | The MRD-negative response rate is defined as the proportion of participants who achieve a morphologic CR or marrow CR based on Investigator-assessed IWG criteria (Cheson 2006) and reach MRD-negative disease status prior to initiation of any new MDS therapy. |
Measure: | Time to Transformation to Acute Myeloid Leukemia (AML) |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | Time to transformation to AML is defined as the time from randomization to the date of documented AML diagnosis. |
Measure: | Percentage of Participants Experiencing Treatment-Emergent Adverse Events |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | |
Measure: | Serum Concentration of Magrolimab |
Time Frame: | Up to 12 hours before administration of any treatment at Days 1 and 8 of Cycle1; at Day 1 of Cycles 2, 3, 5, 7, 10, and 13, and End of Treatment (± 7 Days after last study drug dose); Cycle length is 28 Days |
Safety Issue: | |
Description: | |
Measure: | Anti-magrolimab Antibody Positivity Occurrence Rate |
Time Frame: | Up to 72 hours before administration of any treatment at Day 1, Cycle 1; within 24 hours prior to any study drug administration at Day 1 of Cycles 2, 3, 5, 7, 10, and 13 and End of Treatment (± 7 Days after last study drug dose); Cycle length is 28 Days |
Safety Issue: | |
Description: | |
Measure: | Functional Assessment of Cancer Therapy-Anemia (FACT-Anemia) Response Rate |
Time Frame: | Up to 5 years |
Safety Issue: | |
Description: | The FACT-Anemia response rate is defined as the proportion of participants who showed clinically meaningful improvement in health-related quality of life (HRQoL) based on the score from the FACT-Anemia instrument prior to initiation of any new MDS therapy.
The FACT-Anemia instrument consists of 5 subscales, including physical well-being, emotional well-being, functional well-being, social well-being, and anemia symptoms. Each subscale measures items on a 5-point Likert scale from 0 to 4, where 0 = not at all and 4 = very much. |
Details
Phase: | Phase 3 |
Primary Purpose: | Interventional |
Overall Status: | Recruiting |
Lead Sponsor: | Gilead Sciences |
Last Updated
August 23, 2021