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A Study to Learn About the Investigational Drug Rinzimetostat (ORIC-944) in Patients With mCRPC Who Were Previously Treated With Abiraterone Acetate (Himalayas-1) (Himalayas-1)

2 september 2026 uppdaterad av: ORIC Pharmaceuticals

A Phase 3, Randomized, Open-Label Study of Rinzimetostat (ORIC-944) in Combination With Darolutamide Compared With ARPI or Docetaxel in Patients With Metastatic Castration Resistant Prostate Cancer Previously Treated With Abiraterone Acetate (Himalayas-1)

Himalayas-1 is a randomized, open-label, global, multicenter phase 3 study evaluating whether the combination of rinzimetostat with darolutamide is more effective compared to physician's choice of control; ARPI (darolutamide or enzalutamide) or docetaxel for treating patients with metastatic castration resistant prostate cancer (mCRPC) who were previously treated with abiraterone acetate.

The primary objective of this study is to demonstrate superiority in radiographic progression free survival (rPFS) of the investigational arm of rinzimetostat + darolutamide combination versus physician's choice of control: ARPI (darolutamide or enzalutamide) or docetaxel.

Studieöversikt

Status

Rekrytering

Betingelser

Intervention / Behandling

Studietyp

Interventionell

Inskrivning (Beräknad)

600

Fas

  • Fas 3

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

  • Förenta staterna
    • Indiana
      • Jeffersonville, Indiana, Förenta staterna, 40207
        • Rekrytering
        • First Urology PSC
    • North Carolina
      • Charlotte, North Carolina, Förenta staterna, 29464
        • Rekrytering
        • Urology Specialists of the Carolinas - University Place
        • Huvudutredare:
          • Jeremy Hubbard, MD
    • Ohio
      • Canton, Ohio, Förenta staterna, 44718
        • Rekrytering
        • Gabrail Cancer Center Research
    • Texas
      • Dallas, Texas, Förenta staterna, 75231
        • Rekrytering
        • Urology Clinics of North Texas
      • Fort Worth, Texas, Förenta staterna, 76132
        • Rekrytering
        • Urology Partners of North Texas (UPNT)
      • Houston, Texas, Förenta staterna, 77027
        • Rekrytering
        • Houston Metro Urology (HMU)
    • Utah
      • Murray, Utah, Förenta staterna, 84107
        • Rekrytering
        • Summit Urology
        • Huvudutredare:
          • Stewart Landau, MD

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  • Histologically or cytologically confirmed adenocarcinoma of the prostate without small cell features
  • Progressive disease in the setting of surgical or medical castration with evidence of disease progression on treatment with abiraterone acetate in the mCSPC setting or first line mCRPC setting is required
  • Metastatic disease in bone documented on bone scan, or in soft tissue documented on CT/MRI scan
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Adequate organ function

Exclusion Criteria:

  • Prior treatment for prostate cancer at any stage with cytotoxic chemotherapy, radioligand therapy (ie, 177Lu -PSMA-617, radium-223), ARPIs including apalutamide, darolutamide, and enzalutamide, PARP monotherapy or other systemic anticancer treatment (approved drugs or experimental compounds such as, antibody therapy, immunotherapy, gene or cell therapy, angiogenesis inhibitors, CDK4/6 inhibitors, PRC2 inhibitors) with the following exceptions:

    1. Treatment with first-generation antiandrogen agents (eg, bicalutamide, flutamide, nilutamide), but must be discontinued prior to the first dose of study medication
    2. Docetaxel treatment is allowed for mCSPC, as long as no signs of failure or disease progression occurred during treatment or within 3 months of treatment completion
  • Any other anticancer therapy (drug or vaccine which does not meet exclusion criterion 1 above) within 28 days or 5 half-lives (whichever is longer) prior to randomization
  • Known or suspected brain metastasis or active leptomeningeal disease
  • Clinically significant cardiovascular disease defined as:
  • Any medical (including active or clinically significant bacterial, fungal, or viral infection) or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the patient inappropriate for the study
  • Active inflammatory gastrointestinal disease, chronic diarrhea, or previous gastric resection or lap-band surgery are excluded

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: Investigational Arm
Rinzimetostat + darolutamide
Läkemedel: Rinzimetostat
400 mg once daily (QD)
Andra namn:
  • ORIC-944
Läkemedel: Darolutamide
600 mg twice daily (BID)
Andra namn:
  • Nubeqa
Aktiv komparator: Physician's Choice
Control Arm
Läkemedel: Darolutamide
600 mg twice daily (BID)
Andra namn:
  • Nubeqa
Läkemedel: Enzalutamide
160 mg once daily (QD)
Andra namn:
  • Xtandi
Läkemedel: Docetaxel
75 mg/m2 intravenously (IV) every 21 days for up to 10 cycles
Andra namn:
  • Taxotere

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Radiographic Progression Free Survival assessed by blinded independent central review (BICR) per RECIST v1.1 and Prostate Cancer Clinical Trials Working Group 3 (PCWG3)
Tidsram: Randomization up to ~2 years
Radiographic Progression Free Survival is defined as the time from the date of randomization to first evidence of radiographic progression as assessed in soft tissue by RECIST 1.1 or in bone per PCWG3 guideline by BICR, or death, whichever occurs first
Randomization up to ~2 years

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Overall Survival (OS)
Tidsram: 5 years
OS is defined as time from date of randomization to date of death due to any cause
5 years
Objective response rate (ORR)
Tidsram: Randomization up to ~2 years
ORR is defined as proportion of patients with measurable soft tissue disease at baseline who have a confirmed objective response of complete response (CR) or partial response (PR)
Randomization up to ~2 years
Duration of Response (DoR)
Tidsram: Randomization up to ~2 years
DOR is defined as time of first response to first documentation of radiographic progression or death, whichever occurs first
Randomization up to ~2 years
Prostate Specific Antigen (PSA) response
Tidsram: Randomization up to ~2 years
Defined as the proportion of patients with a confirmed ≥50% and ≥90% decline in PSA from baseline as per the PCWG3 criteria, along with the maximum decline in PSA occurring at any point on study
Randomization up to ~2 years
Time to PSA progression
Tidsram: Randomization up to ~2 years
Measured from the start of treatment until criteria for PSA progression are met as per PCWG3
Randomization up to ~2 years
Time to initiation of antineoplastic therapy
Tidsram: Randomization up to ~4 years
Time from randomization to first symptomatic skeletal event (symptomatic bone fractures, spinal cord compression, surgery or radiation to the bone whichever is first)
Randomization up to ~4 years
Time to first symptomatic skeletal event
Tidsram: Randomization up to ~4 years
Time from randomization to first symptomatic skeletal event (symptomatic bone fractures, spinal cord compression, surgery or radiation to the bone whichever is first) Compare patient reported outcomes (PROs) between the investigational treatment and control arms
Randomization up to ~4 years
Change from baseline in patient reported pain symptoms per Brief Pain Inventory-Short Form (BPI-SF)
Tidsram: Randomization up to ~4 years
Analysis of Brief Pain Inventory-Short Form (BPI-SF) will be based on the pain severity score (mean of individual BPI-SF items 3, 4, 5 and 6), the pain interference score (the mean of items 9A-9G), and the single BPI-SF Item 3 which asks the patient to rate pain at its worst in the last 24 hours
Randomization up to ~4 years
Change from baseline in health-related quality of life (HRQoL) per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
Tidsram: Randomization up to ~4 years
Change from baseline in HRQoL (FACT-P total score) will be presented. The FACT-P total score will be calculated based on the participant responses to the 39 items in the FACT-P questionnaire. Each item is rated on a 0 to 4 Likert-type scale and then combined to produce the FACT-P total score (0-156), with higher scores representing better health-related quality of life
Randomization up to ~4 years
Change from baseline in social/family well-being per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
Tidsram: Randomization up to ~4 years
Change from baseline in social/family well-being score will be presented. The social/family well-being score will be calculated based on 7 items in the FACT-P questionnaire; score range 0-28. Each item is rated on a 0 to 4 Likert-type scale
Randomization up to ~4 years
Change from baseline in functioning well-being per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
Tidsram: Randomization up to ~4 years
Change from baseline in functioning well-being score will be presented. The functioning well-being score will be calculated based on 7 items in the FACT-P questionnaire; score range 0-28. Each item is rated on a 0 to 4 Likert-type scale
Randomization up to ~4 years
Change from baseline in physical well-being per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
Tidsram: Randomization up to ~4 years
Change from baseline in physical well-being score will be presented. The physical well-being score will be calculated based on 7 items in the FACT-P questionnaire; score range 0-28. Each item is rated on a 0 to 4 Likert-type scale
Randomization up to ~4 years
Change from baseline in symptoms per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
Tidsram: Randomization up to ~4 years
Change from baseline prostate cancer symptoms (PCS) score will be presented. The PCS score will be calculated based on 12 items in the FACT-P questionnaire; score range 0-48. Each item is rated on a 0 to 4 Likert-type scale
Randomization up to ~4 years
Change from baseline in patient reported health status per European Quality of Life 5-Dimension 5 Level (EQ-5D-5L)
Tidsram: Randomization up to ~4 years
Participants will self-rate their current state of mobility, self-care, usual activities, pain/discomfort, and anxiety/depression by choosing 1 of 5 possible responses that record the level of severity (no problems, slight problems, moderate problems, severe problems, or extreme problems) within each dimension. The questionnaire also includes a visual analog scale to self-rate general health state on a scale from "the worst health you can imagine" to "the best health you can imagine."
Randomization up to ~4 years
Symptomatic toxicity as measured by items from the Patient-Reported Outcome CTCAE (PRO-CTCAE)
Tidsram: Randomization up to ~2 years
Each selected PRO-CTCAE items will be assessed related to one or more attributes that include counts for the frequency, severity, and/or interference with usual or daily activities
Randomization up to ~2 years
Overall side effect burden as measured by the FACT- GP5
Tidsram: Randomization up to ~2 years
The FACT-GP5 question assesses overall side effect burden with the following response options "I am bothered by side effects of treatment," is rated on a 5-point scale ranging from "not at all" (0) to "very much" (4) and counts will be presented
Randomization up to ~2 years
Time to confirmatory deterioration in patient-reported pain symptoms per BPI-SF Item 3 "worst pain in 24 hours"
Tidsram: Randomization up to ~4 years
Defined as the time from randomization to onset of pain progression, which is defined as > 2-point increase from baseline in the score from the BPI-SF Question 3 that is confirmed at the next consecutive assessment > 4 weeks apart or an initial deterioration followed by death before the next assessment
Randomization up to ~4 years
Time to definitive deterioration in patient-reported health related quality of life (HRQoL) per FACT-P
Tidsram: Randomization up to ~4 years
Defined as the time from randomization to onset of definitive deterioration in FACT-P total score, which is defined as >10 point decrease from baseline and no subsequent observations with a <10 point decrease from baseline FACT-P total score
Randomization up to ~4 years
Time to definitive deterioration in patient-reported physical well-being per FACT-P
Tidsram: Randomization up to ~4 years
Time to definitive deterioration in physical well-being (PWB) per FACT-P is defined as the time from randomization to onset of definitive deterioration in physical well-being, which is defined as ≥3-point
Randomization up to ~4 years
Incidence of Adverse Events (AEs)
Tidsram: Randomization up to ~2 years
Type, incidence, relationship to study treatments, severity, and seriousness of AEs [as graded by National Cancer Institute (NCI) common terminology criteria for adverse events (CTCAE) v6.0] and other clinical assessments
Randomization up to ~2 years
Evaluate the pharmacokinetics (PK) of rinzimetostat in combination with darolutamide
Tidsram: Randomization up to ~1 year
Rinzimetostat characterized by predose and postdose plasma concentrations at selected time points
Randomization up to ~1 year

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

ORIC Pharmaceuticals

Samarbetspartners

Bayer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

3 augusti 2026

Primärt slutförande (Beräknad)

1 mars 2028

Avslutad studie (Beräknad)

1 september 2030

Studieregistreringsdatum

Först inskickad

18 juni 2026

Först inskickad som uppfyllde QC-kriterierna

20 juli 2026

Första postat (Faktisk)

23 juli 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

3 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

2 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • ORIC-944-05
  • 2026-525340-15-00 (Ctis)

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Ja

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

produkt tillverkad i och exporterad från U.S.A.

Nej

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