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ARV-766

Phase 1

Prostate Cancer Metastatic | Small molecule | Oncology |Novartis AG|Last Updated: Aug 18, 2026

Success Probability

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment164

FDA Designations

No designations recorded

Clinical trial landscape

ARV-766 · 1 trial · 1 indication

Phase 1 1
NCT05067140A Study of ARV-766 Given by Mouth in Men With Metastatic Prostate CancerProstate Cancer Metastatic
ACTIVE NOT_RECRUITING164 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study of ARV-766 Given by Mouth in Men With Metastatic Prostate Cancer
Prostate Cancer MetastaticUnlock trial analytics

Study Endpoints

Primary Endpoints

Part A: Incidence and severity of dose limiting toxicities (DLTs) during the first cycle of treatment
Up to 28 days

Number and proportion of participants experiencing dose-limiting toxicities during the DLT evaluation period to assess safety and determine the maximum tolerated dose (MTD) of ARV-766 and/or recommended Phase 2 dose (RP2D)

Part C: Incidence and severity of dose limiting toxicities (DLTs) during the first cycle of treatment
Up to 28 Days

Number and proportion of participants experiencing dose-limiting toxicities during the DLT evaluation period to determine the recommended dose of ARV-766 in combination with abiraterone

Parts A and C: Incidence rate of Adverse Events (AEs) and Serious Adverse Events (SAEs)
From first dose through approximately 30 days after last dose

Adverse events as characterized by type, frequency, severity (as graded by NCI CTCAE v 5.0), timing, seriousness, and relationship to study drug.

Parts A and C: Incidence of laboratory abnormalities
From first dose through approximately 30 days after last dose

Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE v 5.0), and timing.

Part B: Prostate-Specific Antigen 30% Response Rate (PSA30)
12 Weeks

Prostate Specific Antigen 30 (PSA30) Rate is defined as the proportion of participants who achieve a ≥30% decrease from baseline at any timepoint, confirmed by a second PSA measurement ≥3 weeks without any PSA progression in between

Part B: Prostate-Specific Antigen 50% Response Rate (PSA50)
12 Weeks

Prostate Specific Antigen 50 (PSA50) Rate is defined as the proportion of participants who achieve a ≥50% decrease from baseline at any timepoint, confirmed by a second PSA measurement ≥3 weeks without any PSA progression in between

Secondary Endpoints

Part A: Prostate-Specific Antigen 30% Response Rate (PSA30)
12 Weeks
Part A: Prostate-Specific Antigen 50% Response Rate (PSA50)
12 Weeks
Part A: Objective Response Rate (ORR)
12 Weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A: ARV-766 Monotherapy (Dose Escalation)EXPERIMENTALParticipants with metastatic prostate cancer received escalating dose levels of ARV-766 administered orally to evaluate safety, tolerability, pharmacokinetics, and to determine the maximum tolerated dose and/or recommended Phase 2 dose. Participants continued androgen deprivation therapy as clinically indicated.
Part B: ARV-766 Monotherapy (Dose Expansion)EXPERIMENTALParticipants with metastatic castration-resistant prostate cancer received ARV-766 administered orally at selected dose levels to further evaluate antitumor activity, safety, tolerability, and pharmacokinetics. Participants continued androgen deprivation therapy as clinically indicated.
Part C: ARV-766 + AbirateroneEXPERIMENTALParticipants received ARV-766 in combination with abiraterone acetate and a corticosteroid (prednisone or prednisolone) to evaluate the safety, tolerability, pharmacokinetics, and preliminary antitumor activity of the combination regimen. Participants continued androgen deprivation therapy as clinically indicated.

Interventions

NameTypeDescription
ARV-766DRUGParts A and C: Daily oral dosages are determined by cohort review committee after initial starting dose cohort and each subsequent cohort completes 28 days of treatment. Part B: 100mg or 300mg oral tablet(s) once daily in 28 day cycles.
AbirateroneDRUGAbiraterone is administered orally in combination with ARV-766, typically on an empty stomach with water, in accordance with prescribing information and standard clinical practice.
Corticosteroid (e.g., prednisone/prednisolone)DRUGPrednisone or prednisolone was administered in accordance with local prescribing information during treatment with abiraterone acetate.
Androgen Deprivation Therapy (ADT)OTHEROngoing androgen deprivation therapy, including luteinizing hormone-releasing hormone (LHRH) agonist/antagonist or prior orchiectomy, is maintained per investigator choice or patient preference.
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Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites17

Key Inclusion Criteria for Parts A, B, and C: * Participants must be able to take oral medication without crushing, dissolving, or chewing tablets * Histological, pathological, or cytological confirmed diagnosis of adenocarcinoma of the prostate * Progression on approved systemic therapies for meta...

Countries:United States
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Competitive Landscape -Prostate Cancer 254 trials (matched to "Prostate Cancer Metastatic")

Recent Changes (Last 90 Days)

MEDIUMAug 19, 2026NCT05067140Enrollment: 152 → 164
MEDIUMAug 19, 2026NCT05067140Enrollment: 152 → 164
MEDIUMAug 19, 2026NCT05067140Enrollment: 152 → 164

Frequently asked questions about ARV-766

What is ARV-766 used for in prostate cancer?

ARV-766 is an investigational small molecule being studied for the treatment of metastatic prostate cancer. It is currently in Phase 1 clinical development, with an active trial evaluating its safety and efficacy in men with this condition.

How does ARV-766 work?

ARV-766 is a small molecule designed to target and degrade specific proteins involved in cancer growth. By promoting the breakdown of these proteins, it aims to inhibit tumor progression in metastatic prostate cancer. The exact molecular target is not disclosed in available information.

Who is developing ARV-766?

ARV-766 is being developed by Novartis AG, a global pharmaceutical company listed on the New York Stock Exchange under the ticker symbol NVS. The company is conducting clinical trials to evaluate the drug's potential in treating metastatic prostate cancer.

What phase is ARV-766 in?

ARV-766 is currently in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The ongoing Phase 1 trial is designed to assess its safety, tolerability, and preliminary efficacy in patients with metastatic prostate cancer.

What clinical trials is ARV-766 in?

ARV-766 is being studied in a Phase 1 clinical trial with the identifier NCT05067140. This trial, titled 'A Study of ARV-766 Given by Mouth in Men With Metastatic Prostate Cancer,' is active but not recruiting, with an enrollment of 164 participants in the United States.

Is ARV-766 the same as other prostate cancer drugs?

ARV-766 is a distinct investigational compound developed by Novartis. It is not known to be the same as any other marketed drug. Its unique mechanism and chemical structure differentiate it from existing therapies for metastatic prostate cancer.