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

29. mai 2026 oppdatert av: 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.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

426

Fase

  • Fase 3

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

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

Studer Kontakt Backup

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

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: INCA033989
Administered intravenous (IV) in accordance with the protocol-defined requirements.
Legemiddel: INCA033989
Administered intravenous (IV) in accordance with the protocol-defined requirements.
Eksperimentell: Best Available Therapy (BAT)
Best Available Therapy (BAT) will be selected by the investigator.
Legemiddel: Best Available Treatment
Best Available Therapy (BAT) will be selected by the investigator.
Andre navn:
  • BAT kan omfatte:
  • • HU
  • • ANA
  • • PEG interferon alfa-2a
  • • Ropeginterferon alfa-2b

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
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
Tiltaksbeskrivelse
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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Incyte Corporation

Etterforskere

  • Studieleder: Incyte Medical Monitor, Incyte Corporation

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

31. juli 2026

Primær fullføring (Antatt)

15. juni 2029

Studiet fullført (Antatt)

1. november 2030

Datoer for studieregistrering

Først innsendt

29. mai 2026

Først innsendt som oppfylte QC-kriteriene

29. mai 2026

Først lagt ut (Faktiske)

3. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

3. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

29. mai 2026

Sist bekreftet

1. mai 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

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

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (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.

Tilgangskriterier for IPD-deling

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 Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Kliniske studier på Essensiell trombocytemi

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