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Taking peoplePhase 3

Tests INCA033989 Against Standard Care in Essential Thrombocythemia

Tests INCA033989 against standard treatment in adults with essential thrombocythemia and a CALR mutation.

Plain-language title generated from the registry record
Registry title: A Phase 3 Study of INCA033989 Versus Best Available Therapy in Participants With Essential Thrombocythemia

Key facts

Where
Amiens, Bordeaux, Brest, Créteil, Le Kremlin-Bicêtre, Nice, Paris, Poitiers, and Toulouse, FranceSee the 9 sites
Phase
Phase 3

Where in France

  • CHU d'Amiens-Picardie - Hôpital SudAmiens, FranceNot yet recruiting
  • Institut Bergonié - Centre Régional de Lutte Contre Le Cancer de Bordeaux et Sud OuestBordeaux, FranceNot yet recruiting
  • Chu de Brest Hopital de La Cavale Blanche Cic HematologieBrest, FranceNot yet recruiting
  • Hospital Henri MondorCréteil, FranceNot yet recruiting
  • Hopital Bicetre - Paris Sud (Ap-Hp)Le Kremlin-Bicêtre, FranceNot yet recruiting
  • Centre Hospitalier Universitaire de Nice - Hôpital l'ArchetNice, FranceNot yet recruiting
  • Hospital Saint-Louis - APHPParis, FranceNot yet recruiting
  • Centre Hospitalier Universitaire de Poitiers La MiletriePoitiers, FranceNot yet recruiting
  • Institut Claudius Regaud Cancer Comprehensive Center - Iuct OncopoleToulouse, FranceNot yet recruiting

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
Incyte Corporation
Trial code
NCT07623200EU 2026-525398-38-00
Record updated
5 November 2026
Original description
This study is being conducted to evaluate INCA033989 versus best available therapy in participants with essential thrombocythemia and a CALR mutation previously treated with cytoreductive therapy.Read full original descriptionShow less

A Phase 3, Randomized, Open-Label Study of INCA033989 Versus Best Available Therapy in Participants With Essential Thrombocythemia and a CALR Mutation Previously Treated With Cytoreductive Therapy (EXCALIBUR-ET2)

This study is being conducted to evaluate INCA033989 versus best available therapy in participants with essential thrombocythemia and a CALR mutation previously treated with cytoreductive therapy.

Inclusion: Confirmed diagnosis of high-risk ET; Presence of mutCALR; Prior treatment with at least 1 cytoreductive therapy.

Exclusion: Major bleeding or thrombosis within the last 3 months prior to study enrollment; Any prior allogenic or autologous stem-cell transplantation; Unresolved toxicity ≥ Grade 2 from previous therapy except for stable chronic toxicities (Grade 2) not expected to resolve, such as stable Grade 2 peripheral neuropathy; Prior nonhematologic malignancy except for the following: Malignancy treated with curative intent and with no evidence of active disease for more than 2 years before screening. Adequately treated carcinoma in situ without current evidence of disease; Other protocol-defined Inclusion/Exclusion Criteria apply; Presence of any hematologic malignancy other than ET.

ClinicalTrials.gov NCT07623200 · EU CTIS 2026-525398-38-00