Clinical trial Recruiting at 13 sites Phase 1 Interventional Ages 18 and up

Evaluating INCA033989 for treating myeloproliferative neoplasms

Official title: A Phase 1, Open-Label, Multicenter Study of INCA033989 Administered as a Monotherapy or in Combination With Ruxolitinib in Participants With Myeloproliferative Neoplasms

Run by Incyte Corporation · NCT06034002 · Data updated 2026-11-12

This study is testing a new treatment called INCA033989, alone and with another drug, to see if it’s safe and effective for people with myeloproliferative neoplasms who have certain mutations.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment290 (estimated)
SponsorIncyte Corporation
Industry-sponsored
Drugs / interventionsruxolitinib, chemotherapy
Locations13 sites (Duarte, California and 12 other locations)
StatusRecruiting
StartedDecember 4, 2023
Main results expectedOctober 29, 2028
Study endsOctober 29, 2028
Registry record updatedApril 17, 2026
Trial IDNCT06034002 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals with myelofibrosis or essential thrombocythemia who have a documented CALR mutation.

Probably not a fit

Patients with other hematological malignancies or those who have had recent major bleeding or thrombosis may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and tolerability of INCA033989, both alone and in combination with Ruxolitinib, in patients with myeloproliferative neoplasms. It aims to determine the maximum tolerated dose and recommended dose for expansion through a series of assessments including bone marrow biopsies. Participants will be monitored for dose-limiting toxicities and overall treatment response. The study focuses on patients with specific mutations, particularly the CALR mutation.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with myeloproliferative neoplasms.

How similar studies have gone: Other studies have shown promise with similar approaches in treating myeloproliferative neoplasms, but this specific combination is being evaluated for the first time.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Life expectancy \> 6 months.
* Willingness to undergo a pretreatment and regular on-study BM biopsies and aspirates (as appropriate to disease).
* Existing documentation from a qualified local laboratory of CALR exon-9 mutation.
* Participants with MF or ET as defined in the protocol.

Exclusion Criteria:

* Presence of any hematological malignancy other than ET, PMF, or post-ET MF.
* Prior history of major bleeding, or thrombosis within the last 3 months prior to study enrollment.
* Participants with laboratory values exceeding the protocol defined thresholds.
* Has undergone any prior allogenic or autologous stem-cell transplantation or such transplantation is planned.
* Active invasive malignancy over the previous 2 years.
* History of clinically significant or uncontrolled cardiac disease.
* Active or chronic HBV or active HCV or known history of HIV.
* Any prior chemotherapy, immunomodulatory drug therapy, immunosuppressive therapy, biological therapy, endocrine therapy, targeted therapy, antibody, or hypomethylating agent used to treat the participant's disease, with the exception of ruxolitinib for TGBs only, within 5 half-lives or 28 days (whichever is shorter) before the first dose of study treatment.
* Participants undergoing treatment with G-CSF, GM-CSF, or TPO-R agonists at any time within 4 weeks before the first dose of study treatment.

Other protocol-defined Inclusion/Exclusion Criteria may apply.

Where it's running

  • City of Hope Medical Center
    Duarte, California, United States
    Recruiting
  • Stanford Cancer Institute
    Palo Alto, California, United States
    Recruiting
  • University of Miami Health System
    Miami, Florida, United States
    Recruiting
  • The University of Kansas Cancer Center
    Westwood, Kansas, United States
    Recruiting
  • Johns Hopkins Hospital
    Baltimore, Maryland, United States
    Recruiting
  • Dana Farber Cancer Institute
    Boston, Massachusetts, United States
    Recruiting
Show 7 more locations
  • Washington University School of Medicine
    St Louis, Missouri, United States
    Recruiting
  • Icahn School of Medicine At Mount Sinai
    New York, New York, United States
    Recruiting
  • Memorial Sloan Kettering Cancer Center
    New York, New York, United States
    Recruiting
  • Wake Forest Baptist Medical Center
    Winston-Salem, North Carolina, United States
    Recruiting
  • Cleveland Clinic
    Cleveland, Ohio, United States
    Recruiting
  • Vanderbilt University Medical Center
    Nashville, Tennessee, United States
    Recruiting
  • Md Anderson Cancer Center
    Houston, Texas, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.