Phase 2
Completed N=35
Phase I/II Trial of CPX-351 + Palbociclib in Patients With Acute Myeloid Leukemia
Source: ClinicalTrials.gov NCT03844997 ↗Enrolled (actual)
35
Serious AEs
11.4%
Results posted
May 2025
Primary outcomePrimary: Safety and Tolerability of Experimental Dose of Palbociclibin Combination With CPX-351 as Measured by Number of Participants With Dose Limiting Toxicities. — 0 Participants
Summary
The purpose of this study is to evaluate the safety and tolerability of Palbociclib in combination with investigational (experimental) drug, CPX-351 and evaluate the efficacy of Palbociclib in combination with chemotherapy as measured by overall response rate (ORR), i.e. complete response (CR) and CR with incomplete blood count recovery (CRi) by 2003 IWG criteria.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Safety and Tolerability of Experimental Dose of Palbociclibin Combination With CPX-351 as Measured by Number of Participants With Dose Limiting Toxicities. |
— | — |
| PRIMARY Efficacy of Palbociclibin Combination With Chemotherapy as Measured by Overall Response Rate (ORR). |
22 | — |
| SECONDARY Time to Response (TTR) |
43.37; 41.27 | — |
| SECONDARY Duration of Response (DOR) |
302.91; 523.7 | — |
| SECONDARY Event-free Survival (EFS) |
188.23; 406.09 | — |
| SECONDARY Overall Survival (OS) Probability |
25; 76 | — |
Eligibility Criteria
Inclusion Criteria
- Newly diagnosed acute myeloid leukemia according to 2016 WHO criteria(excluding APL [AML-M3]).
- Eastern Cooperative Oncology Group (ECOG) Performance Status <2
- Subjects must have normal organ function as defined below:
- Total bilirubin <2 times upper limit of normal ((≤ 3 x ULN if considered to be due to leukemic involvement or Gilbert's syndrome) or if higher than 2 times upper limit of normal with approval from the PI
- Serum Creatinine <2 x ULNor if higher than 2 times upper limit of normal with approval from the PI
- Left ventricular ejection fraction of ≥45%
- Patients with secondary AML arising out of MDS (all subtypes under WHO classification), chronic myelomonocytic leukemia (CMML) and therapy-related AML are eligible.
- Women of childbearing potential should be advised to avoid becoming pregnant and men should be advised to not father a child while receiving treatment. All men and women of childbearing potential must use acceptable methods of birth control throughout the study
- Subjects must have the ability to understand and the willingness to sign a written informed consent document.
Exclusion Criteria
- Prior treatment with CPX-351, Palbociclib or other cell cycle inhibitors.
- Any serious medical condition, laboratory abnormality, or psychiatric illness that, in the view of the treating physician, would place the participant at an unacceptable risk if he or she were to participate in the study or would prevent that person from giving informed consent.
- Any active malignancy (unrelated, non-hematological malignancy) diagnosed within the past 6 months of starting the study drug (other than curatively treated carcinoma-in-situ of the cervix or non-melanoma skin cancer).
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to CPX-351, Palbociclib or other cell cycle inhibitors.
- Subjects with uncontrolled intercurrent illness including, but not limited to ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, uncontrolled cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
- Known history of HIV or active hepatitis B or C.
- No major surgery within 2 weeks prior to study enrollment.
- Pregnancy or breast feeding
- Male and female patients who are fertile who do not agree to use an effective barrier methods of birth control (i.e. abstinence) to avoid pregnancy while receiving study treatment.
- Acute promyelocytic leukemia (APL)
Data sourced from ClinicalTrials.gov (NCT03844997). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.