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A Phase 3 Study of INCA033989 Versus Best Available Therapy in Participants With Essential Thrombocythemia (EXCALIBUR-ET2)

29. maj 2026 opdateret af: Incyte Corporation

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.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

426

Fase

  • Fase 3

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Incyte Corporation Call Center (US)
  • Telefonnummer: 1.855.463.3463
  • E-mail: medinfo@incyte.com

Undersøgelse Kontakt Backup

  • Navn: Incyte Corporation Call Center (ex-US)
  • Telefonnummer: +800 00027423
  • E-mail: eumedinfo@incyte.com

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

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

Exclusion Criteria:

  • Presence of any hematologic malignancy other than ET.
  • 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.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: INCA033989
Administered intravenous (IV) in accordance with the protocol-defined requirements.
Medicin: INCA033989
Administered intravenous (IV) in accordance with the protocol-defined requirements.
Eksperimentel: Best Available Therapy (BAT)
Best Available Therapy (BAT) will be selected by the investigator.
Medicin: Best Available Treatment
Best Available Therapy (BAT) will be selected by the investigator.
Andre navne:
  • BAT kunne omfatte:
  • • HU
  • • ANA
  • • PEG interferon alfa-2a
  • • Ropeginterferon alfa-2b

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Durable clinicohematologic response (DCR)
Tidsramme: Week 24
Normalization of platelet and white blood cell (WBC) counts and absence of disease progression as defined in the protocol.
Week 24

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Reduction from baseline in calreticulin exon 9 frameshift mutation(s) (mutCLAR) variant allele frequency (VAF)
Tidsramme: Week 24
Reduction in mutCALR VAF as defined in the protocol.
Week 24
Durable clinicohematologic response (DCR)
Tidsramme: Week 48
Normalization of platelet and white blood cell (WBC) counts and absence of disease progression as defined in the protocol.
Week 48
Durable partial clinicohematologic response (DPR)
Tidsramme: Week 24
Improvement of platelet and white blood cell (WBC) counts and absence of disease progression as defined in the protocol.
Week 24
Durable partial clinicohematologic response (DPR)
Tidsramme: Week 48
Improvement of platelet and white blood cell (WBC) counts and absence of disease progression as defined in the protocol.
Week 48
Longest duration of complete hematologic response (CHR)
Tidsramme: Up to Week 48
Longest time from documented CHR until the loss of CHR as defined in the protocol.
Up to Week 48
Number of Participants with Treatment Emergent Adverse Events (TEAE)
Tidsramme: Up to Week 48 and 60 days after last dose
Defined as any adverse event occurring after the first dose of study drug until up to 60 days after the last dose of study drug.
Up to Week 48 and 60 days after last dose
TEAEs leading to dose interruptions, dose reductions or discontinuation of study treatment
Tidsramme: Up to Week 48 and 60 days after last dose
TEAEs leading to dose interruptions, dose reductions or discontinuation of study treatment.
Up to Week 48 and 60 days after last dose
Number of participants with a reduction in mutCALR VAF
Tidsramme: Week 24 and Week 48
Number of participants with a reduction in mutCALR VAF as defined in the protocol.
Week 24 and Week 48
Molecular response
Tidsramme: Week 24 and Week 48
Overall reduction in mutCALR VAF as defined in the protocol.
Week 24 and Week 48
Change from baseline in Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) total symptom score (TSS)
Tidsramme: Up to Week 48
Defined as the proportion of participants who achieve a protocol defined reduction in TSS.
Up to Week 48
Change from baseline in Brief Fatigue Inventory (BFI) fatigue score
Tidsramme: Up to Week 48
The BFI is a 9 item scored from 0 (no fatigue) -10 (as bad as you can imagine), items are averaged with total score from 0-10, with higher score indicating more fatigue.
Up to Week 48
Patient Global Impression of Change (PGIC) score
Tidsramme: Up to Week 48
The PGIC is based on a 7-point scale and the participant will rate each question from the start of treatment as 1-very much improved, 2-much improved, 3-minimally improved, 4-no change, 5-minimally worse, 6-much worse, and 7-very much worse.
Up to Week 48

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Incyte Corporation

Efterforskere

  • Studieleder: Incyte Medical Monitor, Incyte Corporation

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

31. juli 2026

Primær færdiggørelse (Anslået)

15. juni 2029

Studieafslutning (Anslået)

1. november 2030

Datoer for studieregistrering

Først indsendt

29. maj 2026

Først indsendt, der opfyldte QC-kriterier

29. maj 2026

Først opslået (Faktiske)

3. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

29. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • INCA033989-304
  • 2026-525398-38-00 (Registry Identifier: EU CT Number)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Incyte shares data with qualified external researchers after a research proposal is submitted. These requests are reviewed and approved by a review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. The trial data availability is according to the criteria and process described on https://www.incyte.com/our-company/compliance-and-transparency

IPD-delingstidsramme

Data will be shared after the primary publication or 2 years after the study has ended for market authorized products and indications.

IPD-delingsadgangskriterier

Data from eligible studies will be shared with qualified researchers according to the criteria and process described in the Data Sharing section of the www.incyteclinicaltrials.com website. For approved requests, the researchers will be granted access to anonymized data under the terms of a data sharing agreement.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Essentiel trombocytæmi

Kliniske forsøg med INCA033989

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Ireland

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner