Brachytherapy for Prostatic Carcinoma Patients

March 18, 2024 updated by: M.D. Anderson Cancer Center

Transperineal Interstitial Permanent Brachytherapy Alone for Selected Patients With Intermediate Risk Prostatic Carcinoma

The goal of this clinical research study is to learn if a prostate implant (brachytherapy) can help to control intermediate risk prostate cancer. The safety of this procedure will also be studied.

Prostate brachytherapy is performed by inserting permanent seeds (which are radioactive pellets) into your prostate in order to treat the prostate cancer with radiation therapy.

Study Overview

Status

Active, not recruiting

Conditions

Detailed Description

If you are found to be eligible to take part in this study, you will have an ultrasound of your prostate before brachytherapy so that the prostate can be measured and mapped and the placement of the needles and seeds planned ahead of time. This is a 20-minute outpatient procedure that involves placing a probe (tube) into your rectum, which takes ultrasound pictures of the prostate to learn the size and shape. A specialized radiation plan for each patient is made, and the exact number of needles and seeds depend on the size and shape of the prostate. Ultrasound pictures, using the probe in the rectum, are taken before the implant procedure so that the plan can be made.

Brachytherapy is an outpatient surgical procedure. Under general or spinal anesthesia, you will have thin needles inserted through the skin between the anus and the scrotum. Seeds are inserted into the prostate through the needles. An ultrasound probe (tube which sends images of the prostate to a screen) is placed into the rectum and remains there during the procedure to help direct the needles. After the seeds are inserted, the needles are removed. The seeds remain permanently in the prostate. Typically, about 25 needles are inserted with about 100 seeds. The implant procedure takes about 1-2 hours in the operating room. Afterwards, you will go to the recovery room for 1-3 hours. You will then have a computed tomography (CT) scan after the procedure to make sure the seeds are properly placed. You will then be allowed to return home.

After treatment, you will have a study visit in 4-6 weeks. After that first follow-up visit, you will have follow-up visits at 4, 8, and 12 months (+/- 3 weeks) after treatment. After that, follow-up visits are every 6 months until 5 years after treatment and then once a year from then on (+/- 3 weeks). At these visits, you will have a physical exam. This may include a digital rectal exam if your doctor feels that it is needed. Blood (about 3 teaspoons) will be drawn for routine tests. You will be asked to complete 2 questionnaires about your urinary, bowel, sexual function, and overall quality of life. The 2 questionnaires take about 30 minutes to complete in total. A CT scan of the prostate will also be performed at the first follow-up visit after the implant to make sure the seeds are properly placed.

If blood tests show that your cancer is getting worse, a biopsy may be done after the treatment is complete. A biopsy is done by inserting a needle through the rectum and into the prostate. The procedure is similar to the one done to first diagnose your prostate cancer. Six (6) to 10 samples are usually taken. The doctor will also perform an ultrasound. This is done by placing a tube in the rectum, which shows a picture of the prostate on a screen and is used to guide the biopsies.

You will be taken off study if your disease progresses. Otherwise, you will remain on study indefinitely.

This is an investigational study. Brachytherapy is FDA approved. Up to 300 patients will take part in this study. All will be enrolled at MD Anderson.

Study Type

Interventional

Enrollment (Actual)

300

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Texas
      • Houston, Texas, United States, 77030
        • University of Texas MD Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Histologically confirmed adenocarcinoma of the prostate, clinical stage T1c - T2b (AJCC 6th Edition), N0, M0. Lymph node evaluation by either CT or MRI.
  2. Zubrod performance status 0-1.
  3. Patient must be greater than or equal to 18 years of age.
  4. Patients with intermediate risk prostate cancer as determined by one of the following combinations: Gleason < 7, PSA 10-15; Gleason 7, PSA must be < 10.
  5. Prostate specific antigen (PSA) prior to study entry must be less than or equal to 15 ng/ml.
  6. Hormone naive.
  7. Prostate volumes by TRUS less than or equal to 60 cc.
  8. AUA voiding symptom scores </= 15 (alpha blockers allowed); this is completed by the patient.
  9. Patients must sign a study-specific informed consent form prior to study entry.

Exclusion Criteria:

  1. Stage < T1c, T2c, T3 or T4 disease (AJCC 6th Edition).
  2. Lymph node involvement (N1).
  3. Evidence of distant metastases (M1).
  4. Radical surgery for carcinoma of the prostate, prior pelvic radiation, prior chemotherapy for prostate cancer, prior TURP, prior cryosurgery, TUNA, TUMT of the prostate.
  5. Active prostatitis.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Brachytherapy - Participants with < 35% biopsy core
Brachytherapy implant procedure lasting 1-2 hours. Questionnaires taking 30 total minutes.
Brachytherapy implant procedure lasting 1-2 hours.
Questionnaires taking 30 total minutes.
Other Names:
  • Survey
Experimental: Brachytherapy - Participants with > 35% biopsy core
Brachytherapy implant procedure lasting 1-2 hours. Questionnaires taking 30 total minutes.
Brachytherapy implant procedure lasting 1-2 hours.
Questionnaires taking 30 total minutes.
Other Names:
  • Survey

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Biochemical prostate specific antigen (PSA) progression
Time Frame: 2.5 Years
2.5 Years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Steven J. Frank, MD, M.D. Anderson Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 1, 2006

Primary Completion (Estimated)

September 30, 2026

Study Completion (Estimated)

September 30, 2027

Study Registration Dates

First Submitted

September 4, 2007

First Submitted That Met QC Criteria

September 4, 2007

First Posted (Estimated)

September 6, 2007

Study Record Updates

Last Update Posted (Actual)

March 19, 2024

Last Update Submitted That Met QC Criteria

March 18, 2024

Last Verified

March 1, 2024

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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