Neoplasms

Blood and Lymph Conditions

All Conditions

Rare Diseases

Leukemia

Leukemia, Myeloid

Leukemia, Myeloid, Acute

Neoplasms by Histologic Type

Hematologic Diseases

Myeloid Leukemia

Acute Myeloid Leukemia

Acute Non Lymphoblastic Leukemia

Acute Graft Versus Host Disease

Anti-Infective Agents

Antineoplastic Agents

All Drugs and Chemicals

Cytarabine

Daunorubicin

Idarubicin

Antimetabolites

Antiviral Agents

Immunosuppressive Agents

Immunologic Factors

Anti-Bacterial Agents

Antibiotics, Antitubercular

Enzyme Inhibitors

Participants will receive RO5503781 alone in escalating doses on Days 1 to 5 of each 28-day cycle until disease progression or unacceptable toxicity.

Participants will receive RO5503781 in escalating doses on Days 1 to 5 and cytarabine on Days 1 to 6 of each 28-day cycle until disease progression or unacceptable toxicity.

Participants will receive RO5503781 on Days 1 to 5, cytarabine on Days 1 to 7, and anthracycline (daunorubicin or idarubicin) on Days 1 to 3 of each 28-day cycle until disease progression or unacceptable toxicity.

Participants will receive optimized RO5503781 formulation on Days 1 to 5 and cytarabine on Days 1 to 6 of each 28-day cycle until disease progression or unacceptable toxicity.

Participants will receive RO5503781 tablets daily (current formulation) containing microprecipitated bulk powder (MBP) at a starting dose of 400 milligrams (mg).

RO5503781 MBP

Participants will receive RO5503781 tablets daily (new optimized formulation) containing spray-dried powder (SDP) at recommended dose(s) for development from Phase 1b to Phase 3.

RO5503781 SDP

Idarubicin will be administered as per standard clinical practice.

Daunorubicin will be administered as per standard clinical practice.

Parts 2 and 4: Participants will receive cytarabine 1000 milligrams per meter squared (mg/m\^2) intravenous (IV) infusion daily. Part 3: Participants will receive cytarabine 100-200 mg/m\^2 IV infusion daily.

Clinical Trials

This Phase 1/1b, open-label study will evaluate the safety and pharmacokinetics of escalating doses of RO5503781 as a single agent or in combination with cytarabine in participants with acute myelogenous leukemia. In Part 1, RO5503781 will be administered in escalating doses as a single agent, and in Part 2, RO5503781 will be administered in combination with cytarabine. An optional Part 3 in which RO5503781 will be administered with cytarabine and anthracycline may be considered . In Part 4, the safety and pharmacokinetic profile of an optimized formulation of RO5503781 in combination with cytarabine will be assessed.

A Study of RO5503781 as a Single Agent or in Combination With Cytarabine in Participants With Acute Myelogenous Leukemia

A Multi-Center, Open-Label, Phase 1/1b Study of Escalating Doses of RO5503781 Administered Orally as 1) a Single Agent, 2) In Combination With Cytarabine, or 3) With Cytarabine and Anthracycline and 4) Assessing PK and Safety of New Optimized Formulation of RO5503781 With Cytarabine in Patients With Acute Myelogenous Leukemia (AML)

Timeframe for RO5503781: Predose (0 hour \[Hr\]), and 1, 2, 3, 4, 6, 10 Hr Postdose on Cy 1 Days 1, 5; Predose (0 Hr) on Cy 1 Day 2; Cy1 Day 6; Cy 1 Days 8, 9, 15 (Parts 1, 2, 4 only) (Cy length=28 days) Timeframe for cytarabine, 1-beta-D-arabinofuranosyluracil (cytarabine metabolite): Parts 2,4: Predose (0Hr), 1, 2, 3, 4, 6, 10 Hr Postdose on Cy1 Days 1, 5; Predose (0Hr) on Cy1 Day 2; Cy1 Day 6; Cy 1 Days 8, 9, 15; Part 3: Predose (0 Hr) on Cy1 Day 1; Predose (0 Hr), 1, 2, 3, 4, 6, 10 Hr Postdose on Cy1 Day 5; Cy1 Day 6 (Cy=28days) Timeframe for daunorubicin, daunorubicinol (daunorubicin metabolite), idarubicin, and idarubicinol (idarubicin metabolite): Part 3: Predose (0 Hr), and 1, 2, 3, 4, 6, 10 Hr Postdose on Cy 1 Days 1, 5; Predose (0 Hr) on Cy1 Day 2; Cy1 Day 6 (Cy length=28 days)

Spots Global Cancer Trial Database for ro5503781 sdp