AzTrials
AzTrials

Myeloproliferative NeoplasmsPhase 1NCT06034002

A Study to Evaluate INCA033989 Administered as a Monotherapy or in Combination With Ruxolitinib in Participants With Myeloproliferative Neoplasms

A Phase 1 study testing INCA033989 and Ruxolitinib in people with Myeloproliferative Neoplasms, run by Incyte Corporation at 13 sites in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This study is being conducted to evaluate the safety, tolerability, dose-limiting toxicity (DLT) and determine the maximum tolerated dose (MTD) and/or recommended dose(s) for expansion (RDE) of INCA033989 administered as a Monotherapy or in Combination With Ruxolitinib in participants with myeloproliferative neoplasms. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Myeloproliferative Neoplasms
What is being tested?
INCA033989 and Ruxolitinib
Could I receive a placebo?
No, everyone receives an active treatment
How many people
290 participants
Where
13 sitesUnited States
Study dates
4 Dec 2023to 29 Oct 2028
Phase
Phase 1
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

  • 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.

Who cannot join

  • 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.
Show all 10Show fewer
  • 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.

Trial locations and contacts

13 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Incyte Corporation Call Center (US) contact

1.855.463.3463

medinfo@incyte.com

Incyte Corporation Call Center (ex-US) contact

+800 00027423

eumedinfo@incyte.com

13 sites in 1 country

United States13 sites, 13 recruiting
  • Johns Hopkins Hospital

    Baltimore, Maryland, 21287

    Recruiting
  • Dana Farber Cancer Institute

    Boston, Massachusetts, 02215

    Recruiting
  • Cleveland Clinic

    Cleveland, Ohio, 44195

    Recruiting
  • City of Hope Medical Center

    Duarte, California, 91010

    Recruiting
  • Md Anderson Cancer Center

    Houston, Texas, 77030

    Recruiting
  • University of Miami Health System

    Miami, Florida, 33136

    Recruiting
  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37232

    Recruiting
  • Icahn School of Medicine At Mount Sinai

    New York, New York, 10029

    Recruiting
  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065

    Recruiting
  • Stanford Cancer Institute

    Palo Alto, California, 94304

    Recruiting
  • Washington University School of Medicine

    St Louis, Missouri, 63108

    Recruiting
  • The University of Kansas Cancer Center

    Westwood, Kansas, 66205

    Recruiting
  • Wake Forest Baptist Medical Center

    Winston-Salem, North Carolina, 27157

    Recruiting

Other trials in United States

About this study

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

This study is being conducted to evaluate the safety, tolerability, dose-limiting toxicity (DLT) and determine the maximum tolerated dose (MTD) and/or recommended dose(s) for expansion (RDE) of INCA033989 administered as a Monotherapy or in Combination With Ruxolitinib in participants with myeloproliferative neoplasms.

Being tested
INCA033989, Ruxolitinib
Keywords
Myeloproliferative Neoplasms, Myelofibrosis, Essential thrombocythemia, CALR mutation
Medical subject headings
Myeloproliferative Disorders, Primary Myelofibrosis, Thrombocythemia, Essential

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • INCA033989Drug

    INCA033989 will be administered at protocol defined dose.

  • RuxolitinibDrug

    Also called Jakafi

    Rux will be administered according to Prescribing Information/SmPC.

Study groups in NCT06034002
Study groupRoleWhat they receive
Part 1a Dose Escalation Cohort Disease Group A - with MFExperimentalINCA033989 will be administered at a protocol defined starting regimen in 28-day cycles to identify the maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE[s]). Participants with myelofibrosis (MF) will enroll in this group.
Receives: Drug: INCA033989
Part 1a Dose Escalation Cohort Disease Group A - with ETExperimentalINCA033989 will be administered at a protocol defined starting regimen in 28-day cycles to identify the maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE[s]). Participants with essential thrombocythemia (ET) will enroll in this group.
Receives: Drug: INCA033989
Part 1a: Dose Escalation Cohort Disease Group B - with TGB-MF SubOpt RExperimentalINCA033989 will be administered at a protocol defined starting regimen in 28- day cycles and will allow for the evaluation of INCA033989 in combination with ruxolitinib to identify the maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE[s]). Participants with myelofibrosis (MF) exhibiting suboptimal response (SubOpt R) will enroll in this group.
Receives: Drug: INCA033989; Drug: Ruxolitinib
Part 1b: Dose Expansion - with MFExperimentalINCA033989 will be administered as monotherapy at the RDE(s) identified during Part 1a. Participants with treatment group A (TGA) myelofibrosis MF will enroll in this group.
Receives: Drug: INCA033989
Part 1b: Dose Expansion - with TGB-MF SubOpt RExperimentalINCA033989 will be administered as an add-on therapy in combination with ruxolitinibat at the RDE(s) identified during Part 1a. Participants with treatment Group B (TGB) MF SubOpt R will enroll in this group.
Receives: Drug: INCA033989; Drug: Ruxolitinib
Part 1b: Dose Expansion - with ETExperimentalINCA033989 will be administered as monotherapy at the RDE(s) identified during Part 1a. Participants with treatment group A (TGA) essential thrombocythemia (ET) will enroll in this group.
Receives: Drug: INCA033989
Part 1c: Dose ExpansionExperimentalINCA033989 will be administered at the dose level found to exhibit an overall positive benefit/risk as monotherapy or as combination therapy with Ruxolitinib. Participants with myelofibrosis (MF) will enroll in this group. The participants enrolled in the monotherapy arm will be offered the option to crossover to combination therapy with ruxolitinib if a suboptimal response to monotherapy is observed after 12 weeks.
Receives: Drug: INCA033989; Drug: Ruxolitinib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of participants with Dose Limiting Toxicities (DLTs)

    Dose-limiting toxicity will be defined as the occurrence of any of the toxicities as per protocol.

    Measured: Up to 28 days

  2. Number of participants with Treatment-emergent Adverse Events (TEAEs)

    Defined as adverse events reported for the first time or worsening of a pre-existing event after first dose of study drug, including those leading to dose modification or discontinuation.

    Measured: Up to 3 years and 60 days

Secondary outcomes (16)
  1. Participants with MF: Response using the revised IWG-MRT and ELN response criteria for MF

    Defined as the percentage of participants with Response using the revised IWG-MRT and ELN response criteria.

    Measured: Up to 3 years and 60 days

  2. Participants With MF: Percentage of participants achieving spleen volume reduction as defined in the protocol

    Defined as percentage of participants with a protocol defined Spleen Volume Reduction.

    Measured: Up to 24 weeks

  3. Participants with symptomatic anemia: Anemia Response as defined in the protocol

    Anemia Response as defined by the protocol.

    Measured: Up to 24 weeks

  4. Participants with ET: Response using the revised IWG-MRT and ELN response criteria for ET

    Defined as the percentage of participants with Response using the revised IWG-MRT and ELN response criteria.

    Measured: Up to 3 years and 60 days

  5. Incidence of AEs, ECGs, vital signs, and clinical laboratory evaluation

    To evaluate the safety of INCA033989.

    Measured: Up to 3 years and 60 days

  6. Percentage of participants achieving ≥ 50% reduction from baseline in total symptom score (TSS)

    Defined as the percentage of participants achieving ≥ 50% reduction from baseline in TSS.

    Measured: Week 12 and Week 24

  7. Mean change from baseline in TSS

    Mean change in TSS from baseline.

    Measured: Week 12 and Week 24

  8. Mean change in disease-related allele burden

    Mean change from baseline in disease-related variant allele frequency quantified by targeted NGS and evaluated with myeloid and lymphoid proportion in blood.

    Measured: Up to 3 years and 60 days

  9. Pharmacokinetics Parameter: Cmax of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as maximum observed plasma concentration of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

  10. Pharmacokinetics Parameter: Tmax of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as the time to reach the maximum plasma concentration of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

  11. Pharmacokinetics Parameter: Cmin of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as the minimum observed plasma concentration of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

  12. Pharmacokinetics Parameter: AUC(0-t) of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as the area under the concentration-time curve up to the last measurable concentration of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

  13. Pharmacokinetics Parameter: AUC 0-∞ of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as the area under the concentration-time curve from 0 to infinity of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

  14. Pharmacokinetics Parameter: CL/F of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as the apparent oral dose clearance of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

  15. Pharmacokinetics Parameter: Vz/F of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as the apparent oral dose volume of distribution of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

  16. Pharmacokinetics Parameter: t1/2 of INCA033989 alone or for the combination of INCA033989 with ruxolitinib

    Defined as the apparent terminal phase disposition half-life of INCA033989 alone or for the combination of INCA033989 with ruxolitinib.

    Measured: Up to 3 years and 60 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Sep 2023
  2. Study start4 Dec 2023
  3. Primary completion29 Oct 2028 (estimated)
  4. Study completion29 Oct 2028 (estimated)

Resources

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
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
290 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06034002
Sponsor's protocol ID
INCA33989-102
Status last verified
Apr 2026
First submitted
30 Aug 2023
Last updated
17 Apr 2026
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing INCA033989 and Ruxolitinib in people with Myeloproliferative Neoplasms, run by Incyte Corporation at 13 sites 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 4 inclusion and 10 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: looking for participants now, as of the sponsor's last update on 17 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites 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 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.

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?

Contact Incyte Corporation Call Center (US) (1.855.463.3463, medinfo@incyte.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of participants with Dose Limiting Toxicities (DLTs) (time frame: Up to 28 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 17 Apr 2026.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in