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A Phase IB Multi-Arm Study With Venetoclax in Combination With Cobimetinib and Venetoclax in Combination With Idasanutlin in Patients With Relapsed or Refractory Acute Myeloid Leukemia Who Are Not Eligible for Cytotoxic Therapy


Brief Summary
The primary objective for this study is to assess the safety and tolerability as well as preliminary efficacy of venetoclax in combination with cobimetinib, and venetoclax in combination with idasanutlin in patients with relapsed or refractory acute myeloid leukemia (R/R) AML who are not eligible for cytotoxic therapy.


Phase 1/2 - for trials that are a combination of phases 1 and 2.

Inclusion and Exclusion Criteria

  • Histological confirmation of relapsed or refractory AML after prior anti-leukemic therapy by WHO classification
  • Ineligible for cytotoxic therapy defined by the following: a. Age (>/=) 75 years or b. age 18
  • 74 years with at least one of the following comorbidities: i. Eastern Cooperative Oncology Group (ECOG) Performance Status of 2 or 3 ii. Cardiac history of congestive heart failure requiring treatment or ejection fraction (/=) 30 mL/min to< 45 mL/min v. any other comorbidity that the physician judges to be incompatible with intensive chemotherapy must be reviewed and approved by the Medical Monitor before screening and study enrollment.
  • Life expectancy of at least 12 weeks
  • Eastern Cooperative Oncology Group (ECOG) Performance Status 0-2
  • Adequate liver and renal function Exclusion Criteria:
  • Patients with acute promyelocytic leukemia (French-American-British [FAB] class M3 AML)
  • Known active central nervous system (CNS) involvement with AML at study entry
  • ECOG Performance Status (>/=) 3 in patients who are (>/=) 75 years old or ECOG Performance Status of 4, regardless of age
  • Prior exposure to Bcl-2 inhibitors, murine double minute 2 (MDM2) antagonists or prior exposure to experimental treatment targeting Raf, mitogen-activated protein kinase (MEK), or the mitogen-activated protein kinase (MAPK) RAS/RAF/MEK/ERK MAPK pathway
  • Positive for hepatitis C virus (HCV), hepatitis B surface antigen (HBsAg) and known history of HIV, malignancy, active infection and cardiovascular diseases (CVs)
  • Received strong cytochrome (CYP) 3A inhibitors, moderate CYP3A inhibitors, strong CYP3A inducers and moderate CYP3A inducers within 7 days prior to initiation of study treatment
  • History of symptomatic Clostridium difficile infection within 1 month prior to dosing Additional arm specific

  • Dose Escalation Arm A (Venetoclax and Cobimetinib):
  • History or evidence of retinal pathology on ophthalmologic examination that is considered a risk factor for neurosensory retinal detachment/central serous chorioretinopathy (CSCR), retinal vein occlusion (RVO), or neovascular macular degeneration
  • Left ventricular ejection fraction (LVEF) below institutional lower limit of normal (LLN) or below 50%, whichever is lower Arm B (Venetoclax and Idasanutlin):
  • Received the following within 7 days prior to the initiation of study treatment: Strong CYP2C8 inhibitors or CYP2C8 substrates, OATP1B1/3 substrates
  • Received the following within 14 days prior to the initiation of study treatment: Strong CYP2C8 inducers
  • History of liver cirrhosis by radiologic, clinical or laboratory data, or biopsy despite normal liver function tests
  • Received treatment with oral or parenteral anticoagulants/anti-platelet agents within 7 days prior to initiation of study treatment.


Please contact the trial administrator to learn more about where you can participate in this trial. Please use the contact form on the right side.

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