Study of CFI-400945 Fumarate in Patients With Relapsed or Refractory AML or MDS
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT03187288 |
Recruitment Status :
Active, not recruiting
First Posted : June 14, 2017
Last Update Posted : January 26, 2023
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Condition or disease | Intervention/treatment | Phase |
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Acute Myeloid Leukemia Myelodysplastic Syndromes Relapsed Cancer Refractory Cancer | Drug: CFI-400945 Fumarate | Phase 1 |
Participants will be screened prior to the start of the study drug for eligibility.
Eligible participants will take CFI-400945 by mouth, once a day, every day of each 28 day cycle. Participants will be asked to keep a study drug diary.
While receiving the study drug, participants will have standard tests and procedures done for safety purposes.
Procedures for research purposes include bone marrow aspirate and additional blood collection for biomarker research, and additional blood samples for pharmacokinetic research.
When participants stop the study drug permanently for any reason, they will be asked to have an End of Treatment Visit and be followed for safety purposes.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 13 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | An Open-Label, Dose Escalation, Safety and Pharmacokinetic Study of CFI-400945 Fumarate Administered Orally to Patients With Relapsed or Refractory Acute Myeloid Leukemia or Myelodysplastic Syndrome |
Actual Study Start Date : | May 25, 2018 |
Actual Primary Completion Date : | June 30, 2021 |
Estimated Study Completion Date : | March 1, 2023 |

Arm | Intervention/treatment |
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Experimental: CFI-400945
CFI-400945 will be given by mouth at 64,96,128,160,192 or 224 mg/day, everyday until intolerable side effects or disease progression.
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Drug: CFI-400945 Fumarate
CFI-400945 is an investigational drug that is being look at for the treatment of acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS). CFI-400945 is an oral (taken by mouth) drug that blocks Polo-like kinase 4 (PLK4) activity. PLK4 is a protein that is important in regulating cell growth and division and cell death. Many tumors are shown to make too much PLK4. When there is too much PLK4 produced, it is believed to contribute to uncontrolled cancer cell growth and division. Therefore, by blocking this protein from working, it is believed to stop tumors from growing or shrink them. |
- Evaluation of the frequency and severity of treatment-emergent adverse events in patients [ Time Frame: 5 years ]This will be done to assess safety and tolerability of CFI-400945 fumarate
- Highest tolerated dose of CFI-400945 fumarate [ Time Frame: 5 years ]The Maximum Tolerated Dose MTD is defined as the highest dose level that does not lead to unacceptable toxicity in two or more patients in a dosing cohort.
- Recommended phase 2 dose of CFI-400945 fumarate [ Time Frame: 5 years ]Following completion of dosing of at least 1 cycle for all patients enrolled the Recommended Phase 2 Dose (RP2D) will be determined.It will be based upon the MTD established during dose escalation and its comprehensive outcome
- Number of participants with response to treatment [ Time Frame: 5 years ]Patients responses will be assess using the International Working Group response criteria for AML and MDS.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- 18 years of age or older
- Relapsed and/or refractory myeloid leukemia (AML) or myelodysplastic syndrome (MDS) that meets certain criteria for prior treatments
- Have acceptable circulating blasts count
- Have clinically acceptable laboratory blood and urine test results
- Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1 or 2
- Be able to swallow oral medications
- Have a life expectancy of 3 months or more
- Agree to use highly effective means of contraception during a defined period
- Negative serum pregnancy test before the start of the study drugs
- Have the ability to understand the requirements of the study, provide written informed consent which includes authorization for release of protected health information, abide by the study restrictions, provide a blood and bone marrow sample for genetic testing and agree to return for the required assessments
Exclusion Criteria:
- Have received cancer therapies within 14 days or 5 half-lives (whichever is shorter) prior to first dose of study drug or have not recovered from toxicities from prior treatments
- Not recovered from toxicities related to allogeneic transplant
- Known active extramedullary central nervous system (CNS) AML
- Secondary cancer needing therapy with exceptions
- Known active human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection
- Known significant mental illness or other condition that may affect the ability to follow the requirements of the study
- Have a chronic infection
- Have uncontrolled severe hypertension
- Have symptomatic congestive heart failure
- Have active angina pectoris or recent myocardial infarction
- Have chronic atrial fibrillation or unacceptable QTc
- Have had major surgery within 21 days of starting therapy
- Have additional uncontrolled serious medical or psychiatric illness
- Have any medical condition that would affect taking the study drug
- Receiving treatment with full dose warfarin
- Receiving treatment with drugs not allowed in this study
- Women who are pregnant or lactating.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03187288
Canada, Ontario | |
Juravinski Hospital and Cancer Centre | |
Hamilton, Ontario, Canada, L8V 1C3 | |
Princess Margaret Cancer Centre | |
Toronto, Ontario, Canada, M5G 2M9 |
Principal Investigator: | Karen Yee, M.D. | Princess Margaret Cancer Centre |
Responsible Party: | University Health Network, Toronto |
ClinicalTrials.gov Identifier: | NCT03187288 |
Other Study ID Numbers: |
CFI-400945-CL-002 |
First Posted: | June 14, 2017 Key Record Dates |
Last Update Posted: | January 26, 2023 |
Last Verified: | May 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Leukemia Leukemia, Myeloid Leukemia, Myeloid, Acute Preleukemia Myelodysplastic Syndromes |
Neoplasms by Histologic Type Neoplasms Bone Marrow Diseases Hematologic Diseases Precancerous Conditions |