Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 1 / Phase 2INTERVENTIONAL

A Phase Ib/II Open-label Study of AMO959 With Lutetium (177Lu) Vipivotide Tetraxetan (AAA617) in Combination With ARPI in Adult Participants With PSMA-positive mCRPC

Q: Who can participate in NCT07226986?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

Q: How do I contact the trial site for NCT07226986?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Q: Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Q: Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

A Phase Ib/II Open-label, Multi-center Study of AMO959 With Lutetium (177Lu) Vipivotide Tetraxetan (AAA617) in Combination With an Androgen Receptor Pathway Inhibitor (ARPI) in Adult Participants With PSMA-positive Metastatic Castration Resistant Prostate Cancer (mCRPC)

A Phase Ib/II Open-label Study of AMO959 With Lutetium (177Lu) Vipivotide Tetraxetan (AAA617) in Combination With ARPI in Adult Participants With PSMA-positive mCRPC (NCT07226986) is a Phase 1 / Phase 2 interventional studying PSMA-positive Metastatic Castration Resistant Prostate Cancer (mCRPC) With Prior Exposure to One Prior ARPI Who Are Candidates for Taxane-based Chemotherapy, sponsored by Novartis Pharmaceuticals. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

About This Trial

The purpose of this phase Ib/II study is to (a) in Phase Ib evaluate the safety, tolerability, and pharmacokinetics (PK) of AMO959 when given in combination with lutetium (177Lu) vipivotide tetraxetan (also known as \[177Lu\]Lu-PSMA-617 or 177Lu-PSMA-617 and hereafter referred to as AAA617) with an androgen receptor pathway inhibitor (ARPI) in participants with metastatic castration resistant prostate cancer (mCRPC) who have failed one prior ARPI and with or without prior taxane exposure, and (b) in Phase II evaluate the preliminary efficacy of AMO959 in combination with AAA617 and ARPI in participants with mCRPC who have failed one prior ARPI, but who have not yet been exposed to taxane treatment.

What Stage of Research Is This?

Phase 1 trials test a new treatment for the first time in humans, focusing on safety, dosing, and how the body processes the drug. For PSMA-positive Metastatic Castration Resistant Prostate Cancer (mCRPC) With Prior Exposure to One Prior ARPI Who Are Candidates for Taxane-based Chemotherapy, a Phase 1 study typically enrolls a small number of participants — often healthy volunteers or patients who have exhausted standard treatment options. Phase 1 results determine whether a treatment moves into larger Phase 2 efficacy studies.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 123 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused PSMA-positive Metastatic Castration Resistant Prostate Cancer (mCRPC) With Prior Exposure to One Prior ARPI Who Are Candidates for Taxane-based Chemotherapy subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Key Who May Qualify: - Signed willing to sign a consent form must be obtained prior to participation in the study. - Participants must be adults ≥ 18 years of age. - Participants must have an You should be able to carry out daily activities with 0 level of ability (ECOG 0) to 2. - Participants must have diagnosed by tissue sample (biopsy-confirmed) adenocarcinoma of the prostate. Participants with other histology (e.g. neuroendocrine, intraductal subtype) are not eligible. - Phase Ib: Prior exposure of up to 1 line of taxane-based chemotherapy is permissible. Phase II: Participants must not have received taxane-based chemotherapy in mCRPC setting (allowed in mHSPC setting). - Participants must have PSMA-PET positive disease assessed by using a PSMA imaging agent that is approved as per protocol and are eligible as determined by the sponsor's central reading rules. - Castration level of testosterone (\< 50 ng/dL), and/or use of concomitant ADT - Participant must have been diagnosed with mCRPC with documented progressive disease while on treatment with ARPI in mHSPC or earlier setting as their last treatment (and did not progress on more than one ARPI), based on at least 1 of the following criteria: - Serum/plasma PSA progression is defined as 2 increases in PSA measured at least 1 week apart. The minimal start value is 2.0 ng/mL; 1.0 ng/mL is the minimal starting value if confirmed rise in PSA is the only indication of progression as per PCWG3 guidelines. - Soft-tissue progression defined PCWG3-modified RECIST v1.1 (Eisenhauer et al 2009, Scher et al 2016). - Progression of bone disease: 2 new lesions; only positivity on the bone scan defines metastatic disease to bone (PCWG3 criteria Scher et al 2016). Key Who Should NOT Join This Trial: ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language

Key Inclusion Criteria: * Signed informed consent must be obtained prior to participation in the study. * Participants must be adults ≥ 18 years of age. * Participants must have an ECOG performance status of 0 to 2. * Participants must have histologically confirmed adenocarcinoma of the prostate. Participants with other histology (e.g. neuroendocrine, intraductal subtype) are not eligible. * Phase Ib: Prior exposure of up to 1 line of taxane-based chemotherapy is permissible. Phase II: Participants must not have received taxane-based chemotherapy in mCRPC setting (allowed in mHSPC setting). * Participants must have PSMA-PET positive disease assessed by using a PSMA imaging agent that is approved as per protocol and are eligible as determined by the sponsor's central reading rules. * Castration level of testosterone (\< 50 ng/dL), and/or use of concomitant ADT * Participant must have been diagnosed with mCRPC with documented progressive disease while on treatment with ARPI in mHSPC or earlier setting as their last treatment (and did not progress on more than one ARPI), based on at least 1 of the following criteria: * Serum/plasma PSA progression is defined as 2 increases in PSA measured at least 1 week apart. The minimal start value is 2.0 ng/mL; 1.0 ng/mL is the minimal starting value if confirmed rise in PSA is the only indication of progression as per PCWG3 guidelines. * Soft-tissue progression defined PCWG3-modified RECIST v1.1 (Eisenhauer et al 2009, Scher et al 2016). * Progression of bone disease: 2 new lesions; only positivity on the bone scan defines metastatic disease to bone (PCWG3 criteria Scher et al 2016). Key Exclusion Criteria: * Concurrent local (radiation therapy to the prostate with curative intent or other prostate antineoplastic ablative procedures) or systemic (hormonal ablation, chemotherapy, immunotherapy, , RLTs) antineoplastic treatments, or within 28 days of enrollment (Phase Ib) or randomization (Phase II) * Prior treatment with any RLT or PSMA-targeted agents (approved or investigational) * Any other investigational agents within 28 days prior to first dose of any study treatment * Concurrent serious medical conditions that may interfere with study procedures or followup * Participants with a history of CNS metastases must have received therapy (surgery, whole brain radiation therapy, stereotactic radiosurgery) and be neurologically stable, asymptomatic, and not taking corticosteroids for the purpose of maintaining neurologic integrity. Other protocol-defined inclusion/exclusion criteria may apply.

Treatments Being Tested

DRUG

AMO959

DNA Damage Response inhibitor

RADIATION

AAA617

PSMA-targeted radiopharmaceutical

DRUG

Enzalutamide

Androgen receptor pathway inhibitor

DRUG

Abiraterone

Androgen receptor pathway inhibitor

Locations (6)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Rio Grande Urology

El Paso, Texas, United States

Novartis Investigative Site

Malvern, Victoria, Australia

Novartis Investigative Site

Murdoch, Western Australia, Australia

Novartis Investigative Site

Sapporo, Hokkaido, Japan

Novartis Investigative Site

Granada, Andalusia, Spain

Novartis Investigative Site

Barcelona, Spain

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT07226986), the sponsor (Novartis Pharmaceuticals), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT07226986 clinical trial studying?

The purpose of this phase Ib/II study is to (a) in Phase Ib evaluate the safety, tolerability, and pharmacokinetics (PK) of AMO959 when given in combination with lutetium (177Lu) vipivotide tetraxetan (also known as \[177Lu\]Lu-PSMA-617 or 177Lu-PSMA-617 and hereafter referred to as AAA617) with an androgen receptor pathway inhibitor (ARPI) in participants with metastatic castration resistant prostate cancer (mCRPC) who have failed one prior ARPI and with or without prior taxane exposure, and (b) in Phase II evaluate the preliminary efficacy of AMO959 in combination with AAA617 and ARPI in par… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT07226986?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT07226986?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT07226986. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT07226986. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.