Overview
This study is being conducted to evaluate the safety, tolerability, and 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.
Eligibility
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 and ET as defined in the protocol.
Exclusion Criteria:
- Presence of any hematological malignancy other than ET, PMF, or post-ET MF.
- Active invasive malignancy over the previous 2 years.
- Active HBV/HCV, HIV.
- History of clinically significant or uncontrolled cardiac disease.
- Has undergone any prior allogenic or autologous stem-cell transplantation or such transplantation is planned.
- Laboratory values outside the Protocol-defined ranges.
- 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.
- Prior history of major bleeding, or thrombosis within the last 3 months prior to study enrollment.
- 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 within 5 half-lives or 28 days (whichever is shorter) before the first dose of study treatment.
- For TGBs only: Undergoing treatment with a potent/strong inhibitor or inducer of CYP 3A4/5 within 14 days or 5 half-lives (whichever is longer) before the first dose of study treatment, or expected to receive such treatment during the study.
Other protocol-defined Inclusion/Exclusion Criteria may apply.