Prospective Evaluation of Stereotactic Body Radiotherapy for Metastatic Prostate Cancer

NCT ID: NCT02206724

Last Updated: 2018-04-20

Basic Information

• Recruitment Status: WITHDRAWN
• Clinical Phase: NA
• Study Classification: INTERVENTIONAL
• Study Start Date: 2014-07-16
• Study Completion Date: 2018-04-17

Brief Summary

The investigators aim to test the safety and feasibility of prostate gland stereotactic body radiotherapy (SBRT) plus best systemic therapy in newly diagnosed metastatic prostate cancer.

Detailed Description

The investigators and other investigators have previously documented the safety and efficacy of definitive intent stereotactic body radiotherapy (SBRT) in the treatment of localized prostate cancer.

In the metastatic setting for multiple malignancies, improved survival rates and disease outcomes have been shown with definitive treatment of the primary disease site. This concept of "cytoreductive" surgery or decreasing the primary tumor burden is now considered the standard of care for metastatic colon, ovarian, renal cell, and some breast carcinomas (plus post-surgery irradiation).

With new guidelines and declining rates of PSA screening, the incidence of newly diagnosed metastatic prostate cancer is expected to increase. A recent population-based study has concluded significant improvements in the definitive treatment of the local prostate cancer in the stage IV setting with either radical prostatectomy or conventional prostate radiation treatments/brachytherapy. To our knowledge, one prospective phase II trial is currently accruing patients to best systemic therapy or best systemic therapy (BST) plus definitive treatment with either radical prostatectomy or conventionally fractionated radiation therapy

The investigators hypothesize that the addition of primary disease SBRT to best systemic therapy for newly diagnosed metastatic prostate cancer would be associated with an acceptable safety profile, quality of life, disease progression, and overall survival. The addition of SBRT to best systemic therapy is also expected to be better-received for stage IV patients (with relatively limited prognosis), vs. fully fractionated radiation therapy, brachytherapy, or radical prostatectomy. The above endpoints would initially be tested in a prospective phase II multi-institutional trial and in comparison with historical controls.

Conditions

Metastatic Prostate Cancer

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

STEREOTACTIC BODY RADIOTHERAPY

STEREOTACTIC BODY RADIOTHERAPY to the prostate gland

Group Type: EXPERIMENTAL

STEREOTACTIC BODY RADIOTHERAPY to the prostate gland

Intervention Type: RADIATION

Interventions

STEREOTACTIC BODY RADIOTHERAPY to the prostate gland

Intervention Type: RADIATION

Eligibility Criteria

Inclusion Criteria

• Histologically-confirmed, adenocarcinoma of the prostate
• Clinical Stage T1b - T4, NX-0-1, M1
• Any Gleason score
• PSA<1000
• ECOG Performance Status 0-2
• No prior prostate radiation or other definitive therapy

Exclusion Criteria

• Prior prostatectomy or cryotherapy of the prostate
• Prior radiotherapy to the prostate or lower pelvis
• Implanted hardware or other material that would prohibit appropriate treatment planning or treatment delivery, in the investigator's opinion
• Chemotherapy for a malignancy in the last 5 years
• History of an invasive malignancy (other than this prostate cancer, or basal or squamous skin cancers) in the last 5 years

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: No

Sponsors

Sharp HealthCare

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

Sharp Healthcare

San Diego, California, United States

Countries

United States

Other Identifiers

140794

Identifier Type: -

Identifier Source: org_study_id