PRE-ProstAtectomy MRI-GuidEd Stereotactic Body RadioTherapy for High-Risk Prostate Cancer Trial (PREPARE SBRT)

Prostate Cancer Clinical Trial

— PREPARE SBRT  

Official title:

PRE-ProstAtectomy MRI-GuidEd Stereotactic Body RadioTherapy for High-Risk Prostate Cancer Trial (PREPARE SBRT)

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03663218
• Other study ID #: 1712018849
• Status: Active, not recruiting
• Phase: Phase 1
• Start date: October 24, 2018
• Est. completion date: March 2026

Study information

• Verified date: March 2024
• Source: Weill Medical College of Cornell University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Men with prostate cancer with Gleason Score of 8 or greater or clinical/radiographic evidence of T3 disease will be considered for this trial.

Description:

Patients with a diagnosis of high risk prostate cancer with a Gleason score of 8 or greater are eligible for this trial. The study will enroll 20 subjects in 3 years. This is a single arm study and the primary objectives is to assess if a patient can undergo a radical prostatectomy after SBRT without a post-operative grade 3 or higher toxicity (according to Clavien-Dindo Classification) at 30 days. Secondary objectives are to assess acute toxicity and quality of life scores. Exploratory objectives will include analysis of tumor and normal biopsied and resected tissue and serum markers and interpretation of interfraction and intrafraction MRIs.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 35
• Est. completion date: March 2026
• Est. primary completion date: December 2024
• Accepts healthy volunteers: No
• Gender: Male
• Age group: 18 Years to 90 Years

Eligibility

Inclusion Criteria:

• Men aged greater than equal to18 with histologically confirmed primary prostate cancer.
• KPS greater than equal to 70
• Patient with a negative staging bone scan.
• Patient can undergo an MRI.
• Patient with negative staging CT or MRI of pelvis. Suspicious evidence of nodal involvement on staging CT or MRI of pelvis is defined as greater than 1 cm on short axis. Documented negative biopsy of suspicious node required.
• Patient is medically fit to undergo prostatectomy.
• Patient has either Gleason Score greater than equal to 8 on biopsy and/or clinical/radiographic evidence of T3 disease.

Exclusion Criteria:

• Prior history of receiving pelvic radiotherapy.
• Patient is unwilling to undergo prostatectomy.
• Patient with active inflammatory bowel disease defined as currently receiving therapy for IBD.

Related Conditions & MeSH terms

• Prostate Cancer
• Prostatic Neoplasms

Intervention

Radiation:
• Dose escalation
This is a modified dose escalation and de-escalation study with an expansion of 3 or 6 pts to allow the recommended phase II dose (RP2D) be examined in a total of 9 pts. The dose limiting toxicity (DLT) is defined as Grade 3 or higher toxicity related to preoperative radiotherapy according to the Clavien-Dindo Classification. 3 radiation dose levels, 5 Gy, 6 Gy and 6.5Gy are considered. At the start of each dose level, 3 pts will be enrolled and treated for five days. If none of the 3 pts develop the DLT, the testing dose will escalate to the next level. If 1 of the 3 pts develops the DLT, the current dose will be tested in an additional 3 pts. If no additional pts develop the DLT, the dose will escalate.

Locations

Country	Name	City	State
United States	Weill Cornell Medicine	New York	New York

Sponsors (1)

Lead Sponsor	Collaborator
Weill Medical College of Cornell University

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Number of subjects who successfully complete radical prostatectomy after SBRT without a post-operative DLT of grade 3 or higher	Successful completion of radical prostatectomy after SBRT without a post-operative DLT of grade 3 or higher within 30 days after prostatectomy.	1 month
Secondary	Acute toxicity in patients after stereotactic body radiotherapy (SBRT) and radical prostatectomy (RP) will be assessed based on NCI Common terminology criteria for adverse events (CTCAE) version 5.0.	Acute toxicity in patients after stereotactic body radiotherapy (SBRT) and radical prostatectomy (RP) will be assessed based on NCI Common terminology criteria for adverse events (CTCAE) version 5.0.	3 months
Secondary	Quality of life scores in patients after stereotactic body radiotherapy (SBRT) and radical prostatectomy (RP) will be collected.	Quality of life scores in patients after stereotactic body radiotherapy (SBRT) and radical prostatectomy (RP) will be collected.	5 years