A Phase 3 interventional study of Rinzimetostat and Darolutamide in Metastatic Castration Resistant Prostate Cancer, sponsored by ORIC Pharmaceuticals. Recruiting at 15 sites in 2 countries. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-03.
Sponsored by ORIC Pharmaceuticals · Phase 3, Interventional, and Treatment
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Among 3,595 studies in Prostatic Neoplasms with a site in United States — 607 open to participants now, 977 under way, 101 of them phase 3. Prostatic Neoplasms · United States.
Among the 3,595 studies in Prostatic Neoplasms with a site in United States, this one is the 202nd largest by planned enrollment of the 3,023 interventional ones that give a count, is one of 176 that started in 2026, is one of 284 in phase 3, reaches primary completion later than 643 of the 971 other live ones, and was the 3,543rd registered.
7,047 studies on the registry are indexed under Prostatic Neoplasms; 1,579 are open to participants now.
Browse Prostatic Neoplasms studies →607 of the 3,595 studies in Prostatic Neoplasms with a site in United States are open now. Recruiting first, the newest first:
City of Hope Medical Center · Sites in United States
Ages 40–80 · Men only
Fred Hutchinson Cancer Center · Sites in United States
Ages 18+ · Men only
University of Michigan Rogel Cancer Center · Sites in United States
Ages 50–75 · Men only · Healthy volunteers
Clinton Bahler · Sites in United States
Ages 18+ · Men only
University of Miami · Sites in United States
Ages 18+ · Men only
A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →
Of the 1,228 Prostatic Neoplasms studies recruiting now, 927 (75%) set no upper age limit and 76 (6%) stop at 75 or younger; 67 take children under 18; 82 take healthy volunteers.
This study: 18 Years and older · male · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
3,595 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 898 · Phase 2 1,383 · Phase 3 321 · Phase 4 50
First in 1988; this study’s year is marked. 176 started in 2026.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 600 is above the median of 60 across 5,349 interventional studies indexed under Prostatic Neoplasms.
Median enrollment 48 across the 3,023 interventional studies, 157 across the 477 observational. Of the 2,355 that completed or were terminated, 997 (42%) have results posted.
This tab as a report to print or save as PDF → With an account.
921 of 3,595 have an industry lead sponsor. The 10 most frequent:
ORIC Pharmaceuticals is the lead sponsor of 10 studies on the registry; 4 are open to participants now.
ORIC Pharmaceuticals has 3 studies filed under Prostatic Neoplasms — fewer than ten, so there is no comparison to draw.
338 of the studies in Prostatic Neoplasms with a site in United States that are under way reach primary completion within a year, 25 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT03348670Phase 3Han Xu, M.D., Ph.D., FAPCR, Sponsor-Investigator, IRB ChairPharmacogenomics IND Commercial SNP Clinical Study - Abiraterone and Single Nucleotide Polymorphisms | 2026-11-18 |
| NCT03767244Phase 3Janssen Research & Development, LLCA Study of Apalutamide in Participants With High-Risk, Localized or Locally Advanced Prostate Cancer Who Are Candidates for Radical Prostatectomy | 2026-12-01 |
| NCT06970847Phase 3Clarity Pharmaceuticals Ltd64Cu-SAR-bisPSMA Positron Emission Tomography: A Phase 3 Study of Participants With Biochemical Recurrence of Prostate Cancer | 2026-12-31 |
| NCT02446405Phase 3University of SydneyEnzalutamide in First Line Androgen Deprivation Therapy for Metastatic Prostate Cancer | 2026-12-31 |
| NCT07427043Phase 3Brigham and Women's HospitalRobotic Opioid-free Prostatectomy Enhanced Strategy (ROPES) | 2026-12-31 |
Add all 338 to your calendar (.ics) → With an account.
Among the 3,595 studies in Prostatic Neoplasms with a site in United States, from their registry updates:
This tab as a report to print or save as PDF → With an account.
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.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
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:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.
“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.
Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Line of therapy
A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.
“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Brain metastases
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Leptomeningeal disease
Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.
Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Rinzimetostat + darolutamide
Drug: Rinzimetostat · Drug: Darolutamide
Control Arm
Drug: Darolutamide · Drug: Enzalutamide · Drug: Docetaxel
400 mg once daily (QD)
Also known as: ORIC-944
600 mg twice daily (BID)
Also known as: Nubeqa
160 mg once daily (QD)
Also known as: Xtandi
75 mg/m2 intravenously (IV) every 21 days for up to 10 cycles
Also known as: Taxotere
Radiographic Progression Free Survival assessed by blinded independent central review (BICR) per RECIST v1.1 and Prostate Cancer Clinical Trials Working Group 3 (PCWG3)
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
Time frame: Randomization up to ~2 years
Overall Survival (OS)
OS is defined as time from date of randomization to date of death due to any cause
Time frame: 5 years
Objective response rate (ORR)
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)
Time frame: Randomization up to ~2 years
Duration of Response (DoR)
DOR is defined as time of first response to first documentation of radiographic progression or death, whichever occurs first
Time frame: Randomization up to ~2 years
Prostate Specific Antigen (PSA) response
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
Time frame: Randomization up to ~2 years
Time to PSA progression
Measured from the start of treatment until criteria for PSA progression are met as per PCWG3
Time frame: Randomization up to ~2 years
Time to initiation of antineoplastic therapy
Time from randomization to first symptomatic skeletal event (symptomatic bone fractures, spinal cord compression, surgery or radiation to the bone whichever is first)
Time frame: Randomization up to ~4 years
Time to first symptomatic skeletal event
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
Time frame: Randomization up to ~4 years
Change from baseline in patient reported pain symptoms per Brief Pain Inventory-Short Form (BPI-SF)
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
Time frame: Randomization up to ~4 years
Change from baseline in health-related quality of life (HRQoL) per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
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
Time frame: Randomization up to ~4 years
Change from baseline in social/family well-being per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
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
Time frame: Randomization up to ~4 years
Change from baseline in functioning well-being per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
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
Time frame: Randomization up to ~4 years
Change from baseline in physical well-being per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
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
Time frame: Randomization up to ~4 years
Change from baseline in symptoms per Functional Assessment of Cancer Therapy - Prostate (FACT-P)
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
Time frame: 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)
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."
Time frame: Randomization up to ~4 years
Symptomatic toxicity as measured by items from the Patient-Reported Outcome CTCAE (PRO-CTCAE)
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
Time frame: Randomization up to ~2 years
Overall side effect burden as measured by the FACT- GP5
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
Time frame: Randomization up to ~2 years
Time to confirmatory deterioration in patient-reported pain symptoms per BPI-SF Item 3 "worst pain in 24 hours"
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
Time frame: Randomization up to ~4 years
Time to definitive deterioration in patient-reported health related quality of life (HRQoL) per FACT-P
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
Time frame: Randomization up to ~4 years
Time to definitive deterioration in patient-reported physical well-being per FACT-P
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
Time frame: Randomization up to ~4 years
Incidence of Adverse Events (AEs)
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
Time frame: Randomization up to ~2 years
Evaluate the pharmacokinetics (PK) of rinzimetostat in combination with darolutamide
Rinzimetostat characterized by predose and postdose plasma concentrations at selected time points
Time frame: Randomization up to ~1 year
Plan to share: No
No publications or documents are linked to this record.
Started Aug 2026 (actual). Primary completion is estimated for Mar 2028, 19 months after the start.
Of 126 industry-sponsored phase 3 interventional studies under Prostatic Neoplasms, half reached primary completion within 38 months of starting (the median), counting those still running; a quarter within 23 and three quarters within 53. This study's planned 19 months is below that.
Counting every sponsor, half of 265 studies reached it within 57 months; a quarter within 31 and three quarters within 100.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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ORIC Pharmaceuticals