Evaluation of Neoadjuvant Xaluritamig in Localized Prostate Cancer

NCT ID: NCT06613100

Last Updated: 2025-11-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-25

Study Completion Date

2030-01-23

Brief Summary

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The primary objectives of this study are to evaluate the safety and tolerability of xaluritamig administered as monotherapy or in combination with an oral Gonadotropin-releasing Hormone (GnRH) antagonist in the neoadjuvant setting followed by radical prostatectomy, and to evaluate the feasibility and safety of a radical prostatectomy following xaluritamig administered as monotherapy or in combination with an oral GnRH antagonist in the neoadjuvant setting.

Detailed Description

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Conditions

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Prostate Cancer

Keywords

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Xaluritamig AMG509 Localized Prostate Cancer Prostate Cancer Neoadjuvant Therapy Immunotherapy T-Cell Engager STEAP1

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohort A - Xaluritamig

Xaluritamig will be administered prior to radical prostatectomy.

Group Type EXPERIMENTAL

Xaluritamig

Intervention Type DRUG

Intravenous (IV) infusion

Cohort B - Xaluritamig with an Oral GnRH Antagonist

Xaluritamig will be administered prior to radical prostatectomy. Participants will also receive an oral GnRH antagonist continuously up to the time of planned radical prostatectomy.

Group Type EXPERIMENTAL

Xaluritamig

Intervention Type DRUG

Intravenous (IV) infusion

GnRH Antagonist

Intervention Type DRUG

Oral administration

Interventions

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Xaluritamig

Intravenous (IV) infusion

Intervention Type DRUG

GnRH Antagonist

Oral administration

Intervention Type DRUG

Other Intervention Names

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AMG 509

Eligibility Criteria

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Inclusion Criteria

Participants are eligible to be included in the study only if all the following criteria apply:

* Participants planned to undergo radical prostatectomy.
* Histologically or cytologically confirmed adenocarcinoma of the prostate at initial biopsy, without neuroendocrine differentiation, signet cell, or small cell features. Intermediate- or high-risk localized prostate cancer, defined as:

* Gleason score of 4+3 or higher AND initial PSA (iPSA) \>10 OR
* Clinically advanced (cT3) on Magnetic Resonance Imaging (MRI) obtained within 3 months prior to screening AND/OR
* Positive locoregional lymph nodes as detected by prostate-specific membrane antigen-positron emission tomography (PSMA-PET) scans OR ≤ 5 local lymph nodes on MRI can be enrolled.
* Participants must have undergone a PSMA-PET (CT or MRI) scan within 3 months prior to screening as part of the standard of care (SOC).
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.

Exclusion Criteria

Participants are excluded from the study if any of the following criteria apply:

* Prior treatment for participant's prostate cancer.

\- Exception: Participants intended for enrollment in cohort B may have received an oral GnRH antagonist up to 3 months prior to the start of screening.
* Any evidence of metastases outside of the surgical resection field identified by conventional imaging or PSMA-PET scans.
* Confirmed history or current autoimmune disease or other diseases resulting in permanent immunosuppression or requiring permanent immunosuppressive therapy.
* Participants with symptoms and/or clinical signs and/or radiographic signs that indicate an acute and/or uncontrolled active systemic infection within 7 days prior to the first dose of study treatment:

\- Participant has known active infection requiring antibiotic treatment. Upon completion of antibiotics and resolution of symptoms, the participant may be considered eligible for the study from an infection standpoint.
* Recent history of arterial or venous thrombosis (eg, stroke, transient ischemic attack, pulmonary embolism, or deep vein thrombosis) within 6 and 3 months prior to the first dose of study treatment, respectively. Note: Participants with a history of venous thrombosis must be on stable anti-coagulation.
* Myocardial infarction and/or symptomatic congestive heart failure (New York Heart Association ≥ class II) within 12 months of first dose of xaluritamig with the exception of ischemia or non-ST segment elevation myocardial infarction controlled with stent placement more than 6 months prior to first dose of xaluritamig.
* Requirement for chronic systemic corticosteroid therapy unless stopped (with adequate tapering) within 7 days prior to dosing.
* Currently receiving treatment in another investigational device or drug study, or less than 4 weeks (since ending treatment on another investigational device or drug study\[ies\]). Other investigational procedures and participation in observational research studies while participating in this study are excluded with the exception of investigational scans.
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Amgen

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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MD

Role: STUDY_DIRECTOR

Amgen

Locations

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University of California San Francisco

San Francisco, California, United States

Site Status RECRUITING

Washington University

St Louis, Missouri, United States

Site Status RECRUITING

The Ohio State University

Columbus, Ohio, United States

Site Status RECRUITING

Thomas Jefferson University

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

Fred Hutchinson Cancer Center

Seattle, Washington, United States

Site Status RECRUITING

Medical College of Wisconsin

Milwaukee, Wisconsin, United States

Site Status RECRUITING

Universitaetsklinikum Essen

Essen, , Germany

Site Status RECRUITING

Universitaetsklinikum Hamburg Eppendorf

Hamburg, , Germany

Site Status RECRUITING

Countries

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United States Germany

Central Contacts

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Amgen Call Center

Role: CONTACT

Phone: 866-572-6436

Email: [email protected]

Related Links

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http://www.amgentrials.com

AmgenTrials clinical trials website

Other Identifiers

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2024-511965-13

Identifier Type: OTHER

Identifier Source: secondary_id

20230237

Identifier Type: -

Identifier Source: org_study_id