Yonsa

Introduction 177Lu-PSMA radioligand therapy (RLT) is an emerging option for metastatic castration-resistant prostate cancer (mCRPC). However, up to half of patients fail to show meaningful clinical benefit with this therapy. A dual-modality strategy seeks to increase dose via complementary external beam radiotherapy (EBRT) in underdosed tumor regions. We hypothesize that by combining both modalities (EBRT and RLT) in an hybrid, adaptive approach, we can safely improve skeletal related events when compared to standard-of-care (SOC) 177Lu-PSMA alone. Methodology Adaptive EBRT and RLT for mCRPC (ARREST) is a pragmatic registry-based phase 2, multi-center randomized controlled trial within the PERa prospective cohort (NCT03378856) planned to activate in 2025. Patients who are receiving SOC 177Lu-PSMA with targetable metastatic burden identified on imaging suitable for EBRT will be eligible. One hundred and thirty eligible patients will be randomized 1:1 to receive either SOC 177Lu-PSMA therapy alone (maximum 6 cycles) or to combined 177Lu-PSMA plus EBRT boost. Patients in the experimental arm will undergo FDG-PET at study entry and SPECT-CT after each cycle of radioligand therapy. Lesions selected for EBRT boost will be selected based on a set of criteria that include estimated suboptimal dose absorbed from 177LuPSMA, lesions demonstrating low PSMA but high FDG update, symptomatic lesions, and those at high risk for skeletal-related events. Selected lesions will receive single-fraction EBRT. Dose prescribed will range from 6-12 Gy with the ideal goal of a combined total biological effective dose of ≥75 Gy (α/β = 1.4) with priority to dose limits for organs at risk. A maximum treatment time of 60 minutes is permitted for each EBRT boost treatment. Patients in the experimental arm that achieve complete response measured by 177Lu-SPECT-CT and PSA will pause ARREST and resume at progression. The primary endpoint is skeletal related events at 1 year. Secondary objectives include overal survival, 177Lu-SPECT-CT and PSA response, toxicity, and quality of life. The sample size is designed to detect a 12 month imporvement in the rate of skeletal related events with a HR 1.6, two-sided alpha of 0.1 and 80% power. Conclusion ARREST is hypothesized to safely optimize tumor dose, offering a personalized hybrid approach that may lead to improved patient outcomes. In addition, this study will permit further understanding of these two distinct radiation delivery methods and their effect on tissues, thereby refining the relative biological effectiveness model for more precise treatment planning.

This study will evaluate the efficacy and safety of the combination of inavolisib plus enzalutamide compared with physician's choice of alternative androgen receptor pathway inhibitor (ARPi) or docetaxel in biomarker-selected participants with metastatic castrate-resistant prostate cancer (mCRPC) who have received one prior second-generation ARPi.

This is a multi-center, open-label Phase 1/2 trial evaluating the safety and efficacy of AB-3028 in subjects with metastatic castration resistant prostate cancer (mCRPC).

This Phase 1 study will evaluate the safety, tolerability, and preliminary effectiveness of AB001, an alpha-emitting radioligand targeting prostate-specific membrane antigen (PSMA), in patients with advanced prostate cancer who are either 177Lu-PSMA naïve or experienced. The study includes dose escalation to identify a recommended dose and dose expansion to further assess safety and anti-tumour activity. Primary objectives are to characterize the safety profile and determine the optimal dose and schedule for future studies

This is a single-arm, phase II study of neoadjuvant combination therapy of Androgen Deprivation Therapy (ADT), \[Gonadotropin-Releasing Hormone (GnRH) agonist Leuprolide\], androgen receptor (AR)-antagonist Darolutamide and Pembrolizumab in a stratified high-risk localized prostate cancer cohort, followed by adjuvant treatment with Pembrolizumab (12 cycles) post-radical prostatectomy (RP). Patients with National Comprehensive Cancer Network (NCCN) high-risk non-metastatic prostate cancer (localized or locally advanced) (defined as Gleason ≥8, disease stage \>=cT3a, or PSA l \>20 ng/mL) will be risk-stratified at a biopsy using Decipher, a commercial standard-of-care diagnostic assay. Patients satisfying all three criteria of high-risk genomic characteristics listed below as per the Decipher grid results will be enrolled in the study: 1. Decipher Genomic classifier, GC\>0.6 2. AR activity score/AR-output gene signature (ARoS)\>11.0 3. High Luminal B score/ PAM50 subtype signature

The purpose of the study is to examine the clinical and biological effects of 177Lu-PSMA-617 in mCRPC patients with cytopenia\[s\].

Hormone therapy, or androgen deprivation therapy (ADT) is a standard way to treat prostate cancer. It works by reducing the amount of the main male sex hormone, testosterone in the body. Androgen receptor pathway inhibitors (ARPIs) are another type of hormone therapy. They either slow down how much testosterone is made or block testosterone from reaching the prostate cancer cells. Abiraterone acetate (AA) is an ARPI that is used to treat advanced prostate cancer. This type of treatment is usually given as a tablet with a steroid called prednisone/prednisolone to manage any medical problems from the hormone therapy. ASP5541 is a different form of AA. It is given as an injection into the muscle. In this study, ASP5541 will be given to men with advanced prostate cancer, both with and without prednisone/prednisolone. This study will check the safety of ASP5541 and compare how well ASP5541 works in men with advanced prostate cancer compared to AA. The main aims of the study are to check how well ASP5541 with prednisone/prednisolone works compared to AA with prednisone/prednisolone in men with advanced prostate cancer who haven't previously been treated with an ARPI, to check safety of ASP5541 given by itself in men with advanced prostate cancer that haven't previously been treated with an ARPI, to check how well ASP5541 given by itself works compared to AA with prednisone/prednisolone in men with advanced prostate cancer that haven't previously been treated with an ARPI, and to check safety of ASP5541 with prednisone/prednisolone in Japanese men with advanced prostate cancer. Adult men with a certain type of advanced prostate cancer can take part. Their cancer has spread to other parts of the body (metastatic). The different types are: Metastatic hormone-sensitive prostate cancer (mHSPC). Prostate cancer that needs testosterone to grow. Metastatic castration-resistant prostate cancer (mCRPC). Prostate cancer that continues to grow even when testosterone levels are low. In this study there will be 3 treatment groups. In Group 1 men with mCRPC who haven't previously been treated with an ARPI will either be given ASP5541 and prednisone/prednisolone or AA and prednisone/prednisolone. In Group 2 men with mHSPC who haven't previously been treated with an ARPI will either be given ASP5541 by itself or be given AA with prednisone/prednisolone. In Group 3 Japanese men with mCRPC or mHSPC who may or may not have previously been treated with an ARPI will be given ASP5541 with prednisone.

The purpose of this study is to evaluate the safety and tolerability of Lutetium-177-PSMA-617 (PLUVICTO) in patients with metastatic castration-resistant prostate cancer (mCRPC) and extensive bone metastases, which appear as a "super scan" pattern on a bone scan. Pluvicto is FDA-approved, but patients with super scan bone scans were previously excluded from the VISION clinical trial, leaving a knowledge gap. The study will enroll up to 30 men with metastatic castration-resistant prostate cancer, with an initial dosing approach that differs from the standard dose. The safety and tolerability of PLUVICTO will be evaluated in this study, with a focus on identifying the optimal dose for this population. This study addresses an important gap in understanding how Pluvicto performs in mCRPC patients with super scan findings.

The purpose of this study is to assess whether the combination of AAA617 (administered for 6 cycles at a dose of 7.4 GBq (200 mCi) +/- 10%) and ARPI improves radiographic progression-free survival (rPFS) or time to death compared to AAA617 alone in PSMA-positive mCRPC patients who were previously treated and progressed on ARPI in the biochemical recurrence (BCR)-non metastatic hormone sensitive prostate cancer (mHSPC), mHSPC, or non-metastatic Castration Resistant Prostate Cancer (nmCRPC) setting and have not previously received a taxane-containing regimen in the castrate resistant prostate cancer (CRPC) setting.

This is an open-label, non-randomized, exploratory platform protocol designed to assess the safety and antitumor activity of epigenetic therapies in participants with localized prostate cancer who are undergoing radical prostatectomy. The epigenetic therapy is intended to increase the sensitivity of the underlying tumor to the patient's immune system. The platform study will evaluate safety, biomarkers, and clinical activity of an epigenetic therapy. The particular details relevant to each module within this platform study will be provided as appendices to the core protocol.

The main purpose of the study is to assess the safety and tolerability of AZD2284, AZD2287, and AZD2275.

The purpose of this study is to evaluate the safety, efficacy, tolerability, and pharmacokinetics (PK) of FG-3246, a cluster of differentiation 46 (CD46) targeting antibody-drug conjugate (ADC), in the treatment of participants with mCRPC who have progressed following treatment with one prior second-generation androgen receptor signaling inhibitor (ARSI) in any setting and no prior taxane therapy in the mCRPC setting.