Description:
A Phase 3, randomized, blinded study comparing CPI-0610 and ruxolitinib with placebo and
ruxolitinib in myelofibrosis (MF) patients that have not been exposed previously to Janus
kinase inhibitors (JAKi). CPI-0610 is a small molecule inhibitor of bromodomain and
extra-terminal (BET) proteins. Evidence suggests that inhibition of both BET and JAK pathways
can result in synergistic reduction of disease and overall improvement in the prognosis of
MF.
Title
- Brief Title: Study of CPI-0610 in Myelofibrosis (MF)
- Official Title: A Phase 3, Randomized, Double-blind, Active-Control Study of CPI-0610 and Ruxolitinib vs. Placebo and Ruxolitinib in JAKi Treatment Naive MF Patients
Clinical Trial IDs
- ORG STUDY ID:
0610-04
- SECONDARY ID:
2020-001989-10
- NCT ID:
NCT04603495
Conditions
- Myelofibrosis
- Primary Myelofibrosis
- Post-polycythemia Vera Myelofibrosis
- Post-essential Thrombocythemia Myelofibrosis
Interventions
| Drug | Synonyms | Arms |
|---|
| CPI-0610 | | CPI-0610 + ruxolitinib |
| Ruxolitinib | | CPI-0610 + ruxolitinib |
| Placebo | | Placebo + ruxolitinib |
Purpose
A Phase 3, randomized, blinded study comparing CPI-0610 and ruxolitinib with placebo and
ruxolitinib in myelofibrosis (MF) patients that have not been exposed previously to Janus
kinase inhibitors (JAKi). CPI-0610 is a small molecule inhibitor of bromodomain and
extra-terminal (BET) proteins. Evidence suggests that inhibition of both BET and JAK pathways
can result in synergistic reduction of disease and overall improvement in the prognosis of
MF.
Trial Arms
| Name | Type | Description | Interventions |
|---|
| CPI-0610 + ruxolitinib | Experimental | CPI-0610 monohydrate tablets + ruxolitinib phosphate tablets | |
| Placebo + ruxolitinib | Active Comparator | Matching placebo tablets + ruxolitinib phosphate tablets | |
Eligibility Criteria
Inclusion Criteria:
- Aged ≥ 18 years
- Confirmed diagnosis of myelofibrosis (primary, post-polycythemia vera, or post
essential thrombocythemia)
- Adequate hematologic, renal, and hepatic function
- Have at least 2 symptoms with an average score ≥ 3 or an average total score of ≥ 10
over the 7-day period prior to randomization using the MFSAF v4.0
- Prognostic risk-factor score of Intermediate-1 or higher per Dynamic International
Prognostic Scoring System (DIPSS) scoring system
- Spleen volume of ≥ 450 cm^3
- Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2
Exclusion Criteria:
- Splenectomy or splenic irradiation in the previous 6 months
- Chronic or active conditions and/or concomitant medication use that would prohibit
treatment
- Had prior treatment with any JAKi or BET inhibitor for treatment of a
myeloproliferative neoplasm
| Maximum Eligible Age: | N/A |
| Minimum Eligible Age: | 18 Years |
| Eligible Gender: | All |
| Healthy Volunteers: | No |
Primary Outcome Measures
| Measure: | Splenic response at Week 24 |
| Time Frame: | 24 weeks of treatment |
| Safety Issue: | |
| Description: | The primary endpoint of the study is splenic response, defined as a ≥35% reduction from baseline in spleen volume as measured by magnetic resonance imaging (MRI) or computerized tomography (CT), at Week 24. |
Secondary Outcome Measures
| Measure: | Total Symptom Score response at Week 24 |
| Time Frame: | 24 weeks of treatment |
| Safety Issue: | |
| Description: | The key secondary endpoint of the study is Total Symptom Score response, defined as a ≥50% decrease from baseline in Total Symptom Score as measured by the Myelofibrosis Symptom Assessment Form v4.0, at Week 24. A higher Total Symptom Score indicates a higher disease burden and thus a worse outcome. |
Details
| Phase: | Phase 3 |
| Primary Purpose: | Interventional |
| Overall Status: | Recruiting |
| Lead Sponsor: | Constellation Pharmaceuticals |
Trial Keywords
Last Updated
August 31, 2021