High Dose Rate Brachytherapy Prior to Robotic Assisted Laparoscopic Prostatectomy With Selective Adjuvant Androgen Blockade for Localized High-risk Prostate Cancer (NEOHDR-B)

Status: Recruiting
Location: See location...
Intervention Type: Drug
Study Type: Interventional
Study Phase: Phase 1/Phase 2
SUMMARY

This is a Phase I/II trial evaluating the effectiveness of adding neoadjuvant HDR-B prior to RALP for HR-PCa patients with selective AAB for decipher high risk or pathologically node positive patients. Patients with newly diagnosed, histologically confirmed, non-metastatic, HR-PCa who are scheduled to receive RALP will be eligible to participate in the study.

Eligibility
Participation Requirements
Sex: Male
Minimum Age: 40
Healthy Volunteers: f
View:

• Subjects must have biopsy-confirmed adenocarcinoma of the prostate.

• Subjects must have a negative bone scan and CT scan or PSMA-PET for nodal or metastatic disease.

• Subjects must have one of the following risk factors:

‣ PSA ≥20 and/or

⁃ Gleason score ≥8 and/or

⁃ Clinical or radiographic stage ≥T3a per AJCC (American Joint Committee on Cancer) 8th Edition Staging Manual and/or

⁃ At least two out of four of the following: PSA (Prostate Specific Antigen) 10-19.9, GS (Gleason Score) = 4+3, clinical stage = T2b/T2c, ≥50% positive biopsy cores.

• Subjects must freely sign informed consent to enroll in the study.

• Subjects must be medically fit to undergo surgery and HDR-B as determined by the PI.

• Age ≥ 40

• ECOG Performance Status (performance status is an attempt to quantify cancer patients\' general well-being and activities of daily life, scores range from 0 to 5 where 0 represents perfect health and 5 represents death): 0-1.

• No prior invasive malignancy in the past 3-years, except non-melanomatous skin cancer unless disease free for a minimum of 2 years. Carcinoma in-situ of the bladder or head and neck region is permissible.

• Subjects must not have had prior androgen deprivation therapy in the past 6 months.

Locations
United States
Texas
Houston Methodist
RECRUITING
Houston
Contact Information
Primary
Vivian MacDonnell, CCRP
vmmacdonnell@houstonmethodist.org
713-441-8113
Backup
Andrew Fararch, MD
amfarach@houstonmethodist.org
713-441-4800
Time Frame
Start Date: 2025-08-01
Estimated Completion Date: 2026-11-14
Participants
Target number of participants: 29
Treatments
Active_comparator: Decipher < 0.85
Patients will receive a single fraction of HDR-B (15Gy) 4-8 weeks prior to RALP.
Active_comparator: Decipher ≥0.85 with AAB
Patients will receive a single fraction of HDR-B (15Gy) 4-8 weeks prior to RALP. In addition, patients with high genomic risk (≥0.85) will receive AAB for 12 weeks in the adjuvant setting beginning 8 weeks post RALP. Patients will receive an androgen receptor inhibitor per treating physician discretion (darolutamide 600 mg PO BID, enzalutamide 160 mg PO QD, apalutamide 240 mg PO QD, or bicalutamide 50 mg PO QD). In addition, patients will receive either a GnRH antagonist (relugolix 360 mg PO x 1 day followed by 120 mg PO QD) or a GnRH agonist (leuprolide 22.5 mg SC once or goserelin 10.8 mg SC once). Pathologically node positive patients will receive adjuvant pelvic radiation therapy as is SOC once the patient has recovered from surgery.
Related Therapeutic Areas
Sponsors
Leads: The Methodist Hospital Research Institute

This content was sourced from clinicaltrials.gov

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