Neoplasms

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Leukemia, Myeloid

Leukemia, Myeloid, Acute

Neoplasms by Histologic Type

Hematologic Diseases

Myeloid Leukemia

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Anti-Infective Agents

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Cytarabine

Venetoclax

Azacitidine

Ophthalmic Solutions

Daunorubicin

Idarubicin

Magrolimab

Antimetabolites

Antiviral Agents

Immunosuppressive Agents

Immunologic Factors

Enzyme Inhibitors

Anti-Bacterial Agents

Antibiotics, Antitubercular

Antineoplastic Agents, Immunological

Participants will receive an escalating dose of magrolimab and a fixed dose of azacitidine.

Participants who are appropriate for non-intensive therapy will receive an escalating dose of venetoclax and a fixed dose of azacitidine.

Participants who are appropriate for intensive therapy will receive 7+3 chemotherapy: 7 day treatment with cytarabine and 3 day treatment with daunorubicin or idarubicin during induction and high-dose cytarabine and steroidal eye drops during consolidation.

Administered orally at a dose of 100 milligrams (mg) on Day 1, 200 mg on Day 2, 400 mg on Days 3-28 during Cycle 1, followed by 400 mg on Days 1-28 during every cycle (Cycle=28 days).

Administered either subcutaneously (SC) or IV, 75 milligrams per square meter (mg/m\^2) on Days 1-7 or Days 1-5, 8 and 9 during every cycle (Cycle=28 days).

Induction: administered continuous infusion, 100 or 200 mg/m\^2 on Days 1-7 (7+3 induction) and if needed Days 1-5 (5+2 induction) during a cycle (Cycle=Up to 42 Days).

Consolidation: administered IV, 1500 or 3000 mg/m\^2 on Days 1, 3, and 5 once every 12 hours for up to 4 cycles.

Administered IV peripherally (IVP), 60 mg/m\^2 on Days 1-3 (7+3 induction) and if needed Days 1-2 (5+2 induction) during a cycle (Cycle=Up to 42 days).

Administered IV, 12 mg/m\^2 on Days 1-3 (7+3 induction) and if needed Days 1-2 (5+2 induction) during a cycle (Cycle=Up to 42 days).

Administered per institutional standard during consolidation.

Steroidal Eye Drops

Gilead Study Director

The goal of this clinical study is to compare the effectiveness of the study drugs, magrolimab in combination with azacitidine, versus venetoclax in combination with azacitidine in participants with previously untreated TP53 mutant acute myeloid leukemia (AML).

Study of Magrolimab in Combination With Azacitidine Versus Physician's Choice of Venetoclax in Combination With Azacitidine or Intensive Chemotherapy in Patients With TP53 Mutant Acute Myeloid Leukemia That Have Not Been Treated

A Phase 3, Randomized, Open-Label Study Evaluating the Safety and Efficacy of Magrolimab in Combination With Azacitidine Versus Physician's Choice of Venetoclax in Combination With Azacitidine or Intensive Chemotherapy in Previously Untreated Patients With TP53 Mutant Acute Myeloid Leukemia

The OS is measured from the date of randomization to the date of death from any cause. Those whose deaths are not observed during the study will be censored at their last known alive date.

The EFS is defined as time from the date of randomization to the earliest date of documented relapse from complete remission (CR), treatment failure (defined as failure to achieve CR within 6 months of treatment with magrolimab + azacitidine or venetoclax + azacitidine, or up to 2 months of treatment with 7 + 3 chemotherapy), or death from any cause. Response assessments or death post SCT or new anti-AML therapies will be included. Those who are not observed to have one of these events during the study will be censored at the date of their last response assessment with clear documentation of no relapse during the study. The date of randomization will be assigned as the event date for participants with treatment failure.

The rate of CR is the percentage of participants who achieve a CR, including CR without minimal residual disease (CR MRD-) and CR with positive or unknown minimal residual disease (CR MRD+/unk) within 6 months of treatment with magrolimab + azacitidine or venetoclax + azacitidine, or within 2 months of treatment with 7 + 3 chemotherapy, as defined by investigators based on European Leukemia Net (ELN) 2017 AML (ELN 2017 AML) with modifications, while on study prior to initiation of any new anti-AML therapy or stem cell transplant (SCT).

The rate of CR MRD- is the percentage of participants who achieve a CR MRD- within 6 months treatment with magrolimab + azacitidine or venetoclax + azacitidine, or within 2 months of treatment with 7 + 3 chemotherapy, as defined by investigators based on ELN 2017 AML with modifications, while on study prior to initiation of any new anti-AML therapy or SCT.

The CR+CRh rate is the percentage of participants who achieve a CR (including CR MRD- and CR MRD+/unk) or CRh as defined by CR with partial platelet and absolute neutrophil count (ANC) recovery while on study prior to initiation of any new anti-AML therapy or SCT.

The DCR is measured from the time the assessment criteria are first met for CR (including CR MRD- and CR MRD+/unk) within 6 months of treatment with magrolimab + azacitidine or venetoclax + azacitidine, or within 2 months of treatment with 7 + 3 chemotherapy, until the first date of AML relapse or death (including assessments post SCT). Those who are not observed to have relapsed disease or death while on study will be censored at the date of their last response assessment with no evidence of relapse. If participants start taking new anti-AML therapies (excluding maintenance therapy) before relapse, the DCR will be censored at the last response assessment before the initiation of the new anti-AML therapies.

The duration of CR+CRh is measured from the time the assessment criteria are first met for CR (including CR MRD- and CR MRD+/unk) or CRh within 6 months of treatment with magrolimab + azacitidine or venetoclax + azacitidine, or within 2 months of treatment with 7 + 3 chemotherapy, until the first date of AML relapse or death (including assessments post SCT). Those who are not observed to have relapsed disease or death while on study will be censored at the date of their last response assessment with no evidence of relapse. If patients start taking new anti-AML therapies (excluding maintenance therapy) before relapse, the duration of CR + CRh will be censored at the last response assessment before the initiation of the new anti-AML therapies.

Rate of anti-magrolimab antibody incidence is defined as the percentage of participants with anti-magrolimab antibodies.

Spots Global Cancer Trial Database for steroidal eye drops