Acute Myeloid LeukemiaPhase 1NCT03187288
Study of CFI-400945 Fumarate in Patients With Relapsed or Refractory AML or MDS
A Phase 1 study testing CFI-400945 Fumarate in people with Acute Myeloid Leukemia and Myelodysplastic Syndromes, run by University Health Network, Toronto at 2 sites in Canada.
Trial summary
This is a phase 1 study of investigational drug CFI-400945 in patients with relapsed or refractory acute myeloid leukemia or myelodysplastic syndrome. The purpose of this phase 1 study is to see how safe and tolerable the study drug is and to determine the best dose (maximum tolerated dose or recommended phase 2 dose)… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Acute Myeloid Leukemia, Myelodysplastic Syndromes, Relapsed Cancer
- What is being tested?
- CFI-400945 Fumarate
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 13 participants
- Where
- 2 sitesCanada
- Study dates
- 25 May 2018to 30 Jun 2021
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 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
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- 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
Who cannot join
- 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
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- 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.
Trial locations and contacts
2 sites in 1 country.
Canada2 sites
Juravinski Hospital and Cancer Centre
Hamilton, Ontario, L8V 1C3
Princess Margaret Cancer Centre
Toronto, Ontario, M5G 2M9
About this study
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
This is a phase 1 study of investigational drug CFI-400945 in patients with relapsed or refractory acute myeloid leukemia or myelodysplastic syndrome. The purpose of this phase 1 study is to see how safe and tolerable the study drug is and to determine the best dose (maximum tolerated dose or recommended phase 2 dose) that can be given in this patient population.
Read the detailed description
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.
- Being tested
- CFI-400945 Fumarate
- Medical subject headings
- Leukemia, Myeloid, Acute, Myelodysplastic Syndromes, Recurrence, Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CFI-400945 FumarateDrug
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.
| Study group | Role | What they receive |
|---|---|---|
| CFI-400945 | Experimental | 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. Receives: Drug: CFI-400945 Fumarate |
What is being measured
The primary outcome is the main question the study is designed to answer.
Evaluation of the frequency and severity of treatment-emergent adverse events in patients
This will be done to assess safety and tolerability of CFI-400945 fumarate
Measured: 5 years
Highest tolerated dose of CFI-400945 fumarate
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.
Measured: 5 years
Recommended phase 2 dose of CFI-400945 fumarate
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
Measured: 5 years
Secondary outcomes (1)
Number of participants with response to treatment
Patients responses will be assess using the International Working Group response criteria for AML and MDS.
Measured: 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Jun 2017
- Study start25 May 2018
- Primary completion30 Jun 2021
- Study completion30 Jun 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Acute Myeloid LeukemiaStudies of the same condition, open and under way.
- More trials run by University Health Network, TorontoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 13 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Health Network, Toronto
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Karen Yee, M.D., Principal investigator, Princess Margaret Cancer Centre
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03187288
- Sponsor's protocol ID
- CFI-400945-CL-002
- Status last verified
- Sep 2026
- First submitted
- 12 Jun 2017
- Last updated
- 29 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- 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
- ClinicalTrials.gov ID
- NCT03187288
- Acronym / sponsor ID
- CFI-400945-CL-002
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 13 participants (actual)
- Lead sponsor
- University Health Network, TorontoUniversity, hospital or other
- Study start
- 25 May 2018 (actual)
- Primary completion
- 30 Jun 2021 (actual)
- Study completion
- 30 Jun 2021 (actual)
- First posted
- 14 Jun 2017 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a phase 1 study of investigational drug CFI-400945 in patients with relapsed or refractory acute myeloid leukemia or myelodysplastic syndrome. The purpose of this phase 1 study is to see how safe and tolerable the study drug is and to determine the best dose (maximum tolerated dose or recommended phase 2 dose) that can be given in this patient population.
Detailed description
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 design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| CFI-400945 | Experimental | Drug: CFI-400945 FumarateCFI-400945 will be given by mouth at 64,96,128,160,192 or 224 mg/day, everyday until intolerable side effects or disease progression. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- 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
Key exclusion criteria (17 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CFI-400945 FumarateCFI-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. | Drug | CFI-400945 |
Primary outcome
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
1 secondary outcome
Number of participants with response to treatment
Time frame: 5 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Sep 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Karen Yee, M.D. principal investigator
Princess Margaret Cancer Centre
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing CFI-400945 Fumarate in people with Acute Myeloid Leukemia and Myelodysplastic Syndromes, run by University Health Network, Toronto at 2 sites in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 10 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 29 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Evaluation of the frequency and severity of treatment-emergent adverse events in patients (time frame: 5 years). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Sep 2026.