Pacritinib With Aza for Upfront Myelodysplastic Syndrome (NCT07387354) | Clinical Trial Compass
Not Yet RecruitingPhase 1/2
Pacritinib With Aza for Upfront Myelodysplastic Syndrome
25 participantsStarted 2026-05
Plain-language summary
This study will be conducted as a phase 1/2 study of safety and preliminary efficacy of pacritinib in combination with azacitidine for IPSS-M moderate low to very high risk MDS. Phase one will be a 3 + 3 design to assess the dose for the phase two portion. The phase two portion will employ a simon min-max two-stage design whereby fifteen patients will be enrolled in the first stage then ten more if at least two patients in stage one have a response. The dosing of pacritinib for the phase two study will be based on the phase one findings. Standard dosing of azacitidine will be used. A correlative study will be conducted in conjunction with the trial where the investigators will measure whole blood collected pre-treatment and at four days post-treatment to measure intracellular flow and phosflow to detect JAK/STAT, NF-ÎșÎČ, and AKT/mTOR signaling in patient samples and how treatment affects these pathways.
Who can participate
Age range18 Years
SexALL
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Inclusion criteria
â. Patients must have histologic evidence of intermediate to high-risk myelodysplastic syndrome defined as having an IPSS-M score of moderate low, moderate high, high or very high risk. This will be assessed based on evaluations performed prior to screening for trial. Of note, the most recent evaluation pre-trial may be used which does not have to necessarily be at diagnosis.
â. Subjects must have recovered from the toxic effects of any prior chemotherapy to †Grade 1 (except alopecia).
â. Required screening visit laboratory values: CrCL â„45; total bilirubin \<2xULN except for patients with known Gilbert's disease; SGPT (ALT) â€2xULN, PTT â€1.5xULN.
â. Negative pregnancy test for women with child-bearing potential at screening visit.
â. Initial screening baseline QTc â€480ms.
â. Patients must be able to sign consent and be willing and able to comply with scheduled visits, treatment plan and laboratory testing.
â. Patients must have an absolute neutrophil count of â„750 to enroll in study, this must be achieved without the addition of growth factor medication.
Exclusion criteria
What they're measuring
1
Optimal Dose of Pacritinib in Combination with Azacitidine - Phase 1
Timeframe: Baseline through Day 28 (Cycle 1)
2
Rate of Dose Limiting Toxicities (DLTs) - Phase 1
Timeframe: Baseline through Day 28 (Cycle 1)
3
Overall Response Rate (ORR) - Phase 2
Timeframe: Baseline through Week 16 (approximately 4 months)
â. Any prior exposure to a hypomethylating agent (azacitidine or decitabine)
â. Any prior exposure to JAK2 inhibitor therapy (ie ruxolitinib or prior pacritinib therapy)
â. Any exposure within the past seven days of initiation of study treatment to a strong CYP3A inhibitor/inducer.
â. Subjects must not be receiving any chemotherapy agents (except hydroxyurea) within the past thirty days.
â. Subjects must not be receiving growth factors (erythropoietin mimetics, granulocyte stimulating factor mimetics, thrombopoietin mimetics) for two weeks prior to enrollment bone marrow. Subjects may not receive growth factors for the duration of this study.
â. Subjects with a "currently active" second malignancy, other than curatively treated non-melanoma skin cancer, carcinoma in situ of the cervix, resected incidental prostate cancer (staged pT2 with Gleason Score †6 and postoperative PSA \<0.5 ng/mL), or other adequately treated carcinoma-in-situ are eligible. Patients are not considered to have a "currently active" malignancy if they have completed therapy and are free of disease for â„ 1 year.
â. Subjects with uncontrolled high blood pressure, unstable angina, symptomatic congestive heart failure (NYHA class 2), myocardial infarction within the past 6 months or serious uncontrolled cardiac arrhythmia are not eligible.
â. Bleeding event grade \>=2 (CTCAE 5.0) within prior three months unless provoked (e.g., by surgery or trauma)