Chronic Myelomonocytic LeukemiaPhase 1/2NCT04493138
Azacitidine and Quizartinib for the Treatment of Myelodysplastic Syndrome or Myelodysplastic/Myeloproliferative Neoplasm With FLT3 or CBL Mutations
A Phase 1/2 study testing Azacitidine and Quizartinib in people with Chronic Myelomonocytic Leukemia and Myelodysplastic Syndrome, run by M.D. Anderson Cancer Center at 1 site in United States.
Trial summary
This phase I/II trial studies the side effects and best dose of quizartinib when given with azacitidine and to see how well they work in treating patients with myelodysplastic syndrome or myelodysplastic/myeloproliferative neoplasm with FLT3 or CBL mutations. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Chronic Myelomonocytic Leukemia, Myelodysplastic Syndrome, Myeloproliferative Neoplasm
- What is being tested?
- Azacitidine and Quizartinib
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteUnited States
- Study dates
- 21 Jul 2020to 31 Dec 2027
- Phase
- Phase 1/2
- Are there results?
- Not yet: the study is under way
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
- Age ≥ 18 years as MDS is a very rare disease in the pediatric setting.
- Diagnosis of MDS or MDS/MPN including CMML according to WHO.
- For hypomethylating agent naïve patients: int-2 or higher by IPSS or >5% bone marrow blasts if MDS or dysplastic CMML (WBC <13x109/L). Patients with proliferative (WBC >/= 13x109/L) CMML or MDS/MPN, or those with dysplastic CMML with high-risk molecular features (mutations in ASXL1, TP53 or more than 3 mutations) are also eligible independently of IPSS risk score or bone marrow blast percentage.
- For patients with prior hypomethylating agent therapy: no response after 6 cycles of azacitidine, decitabine, guadecitabine or ASTX727 or relapse or progression after any number of cycles.
- Detectable FLT3-ITD mutation in bone marrow and/or peripheral blood, or presence of CBL exon 8 or 9 deletions or point mutations.
- Serum creatinine </= 2xULN.
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- Adequate hepatic function with total bilirubin <2x ULN (will allow less than 5xULN if Gilbert's at investigator's discretion), AST or ALT </=3xULN.
- ECOG Performance Status 0-2.
- Patient must have signed an informed consent document indicating that the patient understands the purpose of and procedures required for the study and is willing to participate in the study.
- Prior hydroxyurea for control of leukocytosis or use of hematopoietic growth factors (eg, G-CSF, GM-CSF, procrit, aranesp, thrombopoietins) is allowed at any time prior to or during study if considered to be in the best interest of the patient.
Who cannot join
- Uncontrolled infection not adequately responding to appropriate antibiotics.
- Screening ECG with a QTcF >450 msec. The QTcF interval will be calculated by Fridericia's correction factor (QTcF). The QTcF will be derived from the average QTcF in triplicate. Patients are excluded if they have QTcF >450. Subjects with prolonged QTcF interval in the setting of RBBB (right bundle branch block) may participate upon review and approval by the principal investigator and following evaluation by cardiology consult.
- Patients with congenital long QT syndrome.
- History or presence of sustained ventricular tachycardia requiring medical intervention.
- Any history of clinically significant ventricular fibrillation or torsades de pointes.
- Known history of second- or third-degree heart block (may be eligible if the patient currently has a pacemaker).
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- Sustained heart rate of <50/minute on screening ECG. The heart rate will be derived from the average heart rate in triplicate.
- Right bundle branch block + left anterior hemiblock (bifascicular block).
- Complete left bundle branch block.
- Atrial fibrillation documented within 2 weeks prior to first dose of study drug.
- New York Heart Association (NYHA) Class III or IV congestive heart failure or LVEF <50 by echocardiogram or multigated acquisition (MUGA) scan.
- History of myocardial infarction within the last 6 months or unstable/uncontrolled angina pectoris or history of severe and/or uncontrolled ventricular arrhythmias.
- Patients who are actively taking a strong CYP3A4 inducing medication
- Patients who require treatment with concomitant drugs that prolong QT/QTc interval or strong CYP3A4 inhibitors with the exception of antibiotics, antifungals, and antivirals that are used as standard of care to prevent or treat infections, antiemetics (such as ondansetron) and other such drugs that are considered absolutely essential for the care of the subject or if the Investigator believes that beginning therapy with a potentially QTc-prolonging medication (such as anti-emetic) is vital to an individual subject's care while on study.
- Female patients who are pregnant or lactating.
- Patients with reproductive potential who are unwilling to following contraception requirements (including condom use for males with sexual partners, and for females: prescription oral contraceptives [birth control pills], contraceptive injections, intrauterine devices [IUD], double-barrier method [spermidical jelly or foam with condoms or diaphragm], contraceptive patch, or surgical sterilization) throughout the study.
- Female patients with reproductive potential who do not have a negative urine or blood beta-human chorionic gonadotropin (beta HCG) pregnancy test at screening.
- Patients receiving any other concurrent investigational agent or chemotherapy, radiotherapy, or immunotherapy.
- Patients known to be positive for hepatitis B surface antigen expression or with active hepatitis C infection (positive by polymerase chain reaction or on antiviral therapy for hepatitis C within the last 6 months). Patients with history of HIV disease are also excluded from the study.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Phase I/II Study of Azacitidine in Combination With Quizartinib for Patients With Myelodysplastic Syndromes and Myelodysplastic/Myeloproliferative Neoplasms With FLT3 or CBL Mutations
This phase I/II trial studies the side effects and best dose of quizartinib when given with azacitidine and to see how well they work in treating patients with myelodysplastic syndrome or myelodysplastic/myeloproliferative neoplasm with FLT3 or CBL mutations. Chemotherapy drugs, such as azacitidine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Quizartinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving azacitidine and quizartinib may help to control myelodysplastic syndrome or myelodysplastic/myeloproliferative neoplasm.
Read the detailed description
PRIMARY OBJECTIVES:
- To determine the safety, tolerability and maximum tolerable dose (MTD) of quizartinib in combination with azacytidine.
II. To assess overall response (ORR) rate to quizartinib in combination with azacitidine.
SECONDARY OBJECTIVES:
- To assess overall survival (OS), duration of response, leukemia-free survival (LFS), relapse-free survival (RFS) and safety profile.
II. Correlative studies.
OUTLINE: This is a phase I, dose-escalation study of quizartinib followed by a phase II study.
Patients receive azacitidine subcutaneously (SC) or intravenously (IV) over about 30 minutes on days 1-5 and quizartinib orally (PO) once daily (QD) on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days.
- Conditions
- Chronic Myelomonocytic Leukemia, Myelodysplastic Syndrome, Myeloproliferative Neoplasm, Recurrent Chronic Myelomonocytic Leukemia, Recurrent Myelodysplastic Syndrome, Recurrent Myeloproliferative Neoplasm
- Being tested
- Azacitidine, Quizartinib
- Medical subject headings
- Leukemia, Myelomonocytic, Chronic, Myelodysplastic Syndromes, Myeloproliferative Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AzacitidineDrug
Also called 5 AZC, 5-AC, 5-Azacytidine, 5-AZC
Given SC or IV
QuizartinibDrug
Also called AC-220, AC010220, AC220
Given PO
| Study group | Role | What they receive |
|---|---|---|
| Treatment (azacitidine, quizartinib) | Experimental | Patients receive azacitidine SC or IV over about 30 minutes on days 1-5 and quizartinib PO QD on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Receives: Drug: Azacitidine; Drug: Quizartinib |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall response rate
Will be defined as complete remission, partial remission, complete remission with incomplete count recovery, marrow compete remission or hematological improvement. Will be estimated for all patients along with the 95% credible interval.
Measured: At least 4 cycles of therapy in the absence of progression (1 cycle = 28 days)
Overall survival
Will be listed and summarized by the Kaplan-Meier estimator.
Measured: Time from treatment start till death or last follow-up, assessed up to 2 years
Duration of response
Will be listed and summarized by the Kaplan-Meier estimator.
Measured: Duration from the first documented onset of partial response or complete response to the date of progressive disease/relapse, assessed up to 2 years
Relapse-free survival
Will be listed and summarized by the Kaplan-Meier estimator.
Measured: Time from start of response to the date of event defined as the first documented progressive disease/relapse or death, whichever comes first, assessed up to 2 years
Leukemia free survival
Will be listed and summarized by the Kaplan-Meier estimator.
Measured: Time from treatment start to the time of progression to leukemia or death, assessed up to 2 years
Incidence of adverse events (AEs)
The severity of the toxicities will be graded according to the latest version of National Cancer Institute Common Terminology Criteria for Adverse Events. The number and percent of subjects with treatment-emergent adverse events will be summarized according to intensity and drug relationship, and categorized by System Organ Class and preferred term by dose level/Part. All reported AEs that occur after signing informed consent will be included in the analysis of all reported AEs. Exposure to study drug and reasons for discontinuation of study drug will be tabulated.
Measured: Up to 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Jul 2020
- Study start21 Jul 2020
- Primary completion31 Dec 2027 (estimated)
- Study completion31 Dec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Chronic Myelomonocytic LeukemiaStudies of the same condition, open and under way.
- More trials run by M.D. Anderson Cancer CenterThe 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 1/2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- M.D. Anderson Cancer Center
- Sponsor type
- University, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Guillermo M Bravo, Principal investigator, M.D. Anderson Cancer Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04493138
- Sponsor's protocol ID
- 2019-1178
- Other IDs
- NCI-2020-05261, 2019-1178
- Status last verified
- Sep 2026
- First submitted
- 27 Jul 2020
- Last updated
- 5 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Publications
Montalban-Bravo G, Jabbour E, Chien K, Hammond D, Short N, Ravandi F, Konopleva M, Borthakur G, Daver N, Kanagal-Shammana R, Loghavi S, Qiao W, Huang X, Schneider H, Meyer M, Kantarjian H, Garcia-Manero G. Phase 1 study of azacitidine in combination with quizartinib in patients with FLT3 or CBL mutated MDS and MDS/MPN. Leuk Res. 2024 Jul;142:107518. doi: 10.1016/j.leukres.2024.107518. Epub 2024 May 11.
PubMed 38744144
Study at a glance
From the registry record, last updated by the sponsor on 5 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase I/II Study of Azacitidine in Combination With Quizartinib for Patients With Myelodysplastic Syndromes and Myelodysplastic/Myeloproliferative Neoplasms With FLT3 or CBL Mutations
- ClinicalTrials.gov ID
- NCT04493138
- Acronym / sponsor ID
- 2019-1178
- Conditions
- Chronic Myelomonocytic Leukemia, Myelodysplastic Syndrome, Myeloproliferative Neoplasm, Recurrent Chronic Myelomonocytic Leukemia, Recurrent Myelodysplastic Syndrome, Recurrent Myeloproliferative Neoplasm
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 30 participants (actual)
- Lead sponsor
- M.D. Anderson Cancer CenterUniversity, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Study start
- 21 Jul 2020 (actual)
- Primary completion
- 31 Dec 2027 (estimated)
- Study completion
- 31 Dec 2027 (estimated)
- First posted
- 30 Jul 2020 (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 phase I/II trial studies the side effects and best dose of quizartinib when given with azacitidine and to see how well they work in treating patients with myelodysplastic syndrome or myelodysplastic/myeloproliferative neoplasm with FLT3 or CBL mutations. Chemotherapy drugs, such as azacitidine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Quizartinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving azacitidine and quizartinib may help to control myelodysplastic syndrome or myelodysplastic/myeloproliferative neoplasm.
Detailed description
PRIMARY OBJECTIVES:
- To determine the safety, tolerability and maximum tolerable dose (MTD) of quizartinib in combination with azacytidine.
II. To assess overall response (ORR) rate to quizartinib in combination with azacitidine.
SECONDARY OBJECTIVES:
- To assess overall survival (OS), duration of response, leukemia-free survival (LFS), relapse-free survival (RFS) and safety profile.
II. Correlative studies.
OUTLINE: This is a phase I, dose-escalation study of quizartinib followed by a phase II study.
Patients receive azacitidine subcutaneously (SC) or intravenously (IV) over about 30 minutes on days 1-5 and quizartinib orally (PO) once daily (QD) on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Treatment (azacitidine, quizartinib) | Experimental | Drug: Azacitidine, Drug: QuizartinibPatients receive azacitidine SC or IV over about 30 minutes on days 1-5 and quizartinib PO QD on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Age ≥ 18 years as MDS is a very rare disease in the pediatric setting.
- Diagnosis of MDS or MDS/MPN including CMML according to WHO.
- For hypomethylating agent naïve patients: int-2 or higher by IPSS or >5% bone marrow blasts if MDS or dysplastic CMML (WBC <13x109/L). Patients with proliferative (WBC >/= 13x109/L) CMML or MDS/MPN, or those with dysplastic CMML with high-risk molecular features (mutations in ASXL1, TP53 or more than 3 mutations) are also eligible independently of IPSS risk score or bone marrow blast percentage.
- For patients with prior hypomethylating agent therapy: no response after 6 cycles of azacitidine, decitabine, guadecitabine or ASTX727 or relapse or progression after any number of cycles.
- Detectable FLT3-ITD mutation in bone marrow and/or peripheral blood, or presence of CBL exon 8 or 9 deletions or point mutations.
Key exclusion criteria (19 listed)
- Uncontrolled infection not adequately responding to appropriate antibiotics.
- Screening ECG with a QTcF >450 msec. The QTcF interval will be calculated by Fridericia's correction factor (QTcF). The QTcF will be derived from the average QTcF in triplicate. Patients are excluded if they have QTcF >450. Subjects with prolonged QTcF interval in the setting of RBBB (right bundle branch block) may participate upon review and approval by the principal investigator and following evaluation by cardiology consult.
- Patients with congenital long QT syndrome.
- History or presence of sustained ventricular tachycardia requiring medical intervention.
- Any history of clinically significant ventricular fibrillation or torsades de pointes.
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 |
|---|---|---|
| AzacitidineAlso: 5 AZC, 5-AC, 5-Azacytidine, 5-AZCGiven SC or IV | Drug | Treatment (azacitidine, quizartinib) |
| QuizartinibAlso: AC-220, AC010220, AC220Given PO | Drug | Treatment (azacitidine, quizartinib) |
Primary outcome
Overall response rate
Time frame: At least 4 cycles of therapy in the absence of progression (1 cycle = 28 days)
Will be defined as complete remission, partial remission, complete remission with incomplete count recovery, marrow compete remission or hematological improvement. Will be estimated for all patients along with the 95% credible interval.
Overall survival
Time frame: Time from treatment start till death or last follow-up, assessed up to 2 years
Will be listed and summarized by the Kaplan-Meier estimator.
Duration of response
Time frame: Duration from the first documented onset of partial response or complete response to the date of progressive disease/relapse, assessed up to 2 years
Will be listed and summarized by the Kaplan-Meier estimator.
Relapse-free survival
Time frame: Time from start of response to the date of event defined as the first documented progressive disease/relapse or death, whichever comes first, assessed up to 2 years
Will be listed and summarized by the Kaplan-Meier estimator.
Leukemia free survival
Time frame: Time from treatment start to the time of progression to leukemia or death, assessed up to 2 years
Will be listed and summarized by the Kaplan-Meier estimator.
Incidence of adverse events (AEs)
Time frame: Up to 2 years
The severity of the toxicities will be graded according to the latest version of National Cancer Institute Common Terminology Criteria for Adverse Events. The number and percent of subjects with treatment-emergent adverse events will be summarized according to intensity and drug relationship, and categorized by System Organ Class and preferred term by dose level/Part. All reported AEs that occur after signing informed consent will be included in the analysis of all reported AEs. Exposure to study drug and reasons for discontinuation of study drug will be tabulated.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Oct 2026.
- Derived from this study: PubMed 38744144Montalban-Bravo G, Jabbour E, Chien K, Hammond D, Short N, Ravandi F, Konopleva M, Borthakur G, Daver N, Kanagal-Shammana R, Loghavi S, Qiao W, Huang X, Schneider H, Meyer M, Kantarjian H, Garcia-Manero G. Phase 1 study of azacitidine in combination with quizartinib in patients with FLT3 or CBL mutated MDS and MDS/MPN. Leuk Res. 2024 Jul;142:107518. doi: 10.1016/j.leukres.2024.107518. Epub 2024 May 11.
- http://www.mdanderson.orgLink provided by the sponsor.
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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.
Guillermo M Bravo principal investigator
M.D. Anderson Cancer Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing Azacitidine and Quizartinib in people with Chronic Myelomonocytic Leukemia and Myelodysplastic Syndrome, run by M.D. Anderson Cancer Center at 1 site in United States.
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 19 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: under way, not looking for participants, as of the sponsor's last update on 5 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. 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 combined 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.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
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?
Overall response rate (time frame: At least 4 cycles of therapy in the absence of progression (1 cycle = 28 days)). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04493138, which also lists 1 linked publication.
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 5 Oct 2026.