New York, New York 10021

  • Prostate Cancer


RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Multiple CT scans may improve the accuracy of radiation therapy for prostate cancer. PURPOSE: Phase I trial to study the effectiveness of multiple CT scans in guiding the treatment of patients who have prostate cancer and are undergoing radiation therapy.

Study summary:

OBJECTIVES: - Compare the accuracy of radiotherapy delivery using multiple CT scans to guide patient positioning vs the standard portal image guided procedure in patients with prostate cancer undergoing external beam radiotherapy. - Determine the reduction in the proportion of patients with large target positioning errors using the CT-guided procedure. - Determine organ motion and setup errors over the course of radiotherapy in order to develop efficient clinical intervention strategies in these patients. OUTLINE: Patients undergo radiotherapy over 9 weeks. Patients undergo a CT scan immediately prior to receiving radiotherapy on treatment days 3-8 and then weekly thereafter. On 3 different days, patients also undergo CT scan immediately after radiotherapy. If the CT scans indicate a correction that exceeds the action level currently in effect, then beginning with the next treatment, the patient's position with respect to the radiation field is adjusted. PROJECTED ACCRUAL: A total of 25 patients will be accrued for this study within 2 years.


DISEASE CHARACTERISTICS: - Undergoing external beam intensity-modulated radiotherapy for prostate cancer - Able to maintain treatment position for about 40 minutes PATIENT CHARACTERISTICS: Age: - Not specified Performance status: - Not specified Life expectancy: - Not specified Hematopoietic: - Not specified Hepatic: - Not specified Renal: - Not specified PRIOR CONCURRENT THERAPY: Biologic therapy: - Not specified Chemotherapy: - Not specified Endocrine therapy: - Not specified Radiotherapy: - See Disease Characteristics Surgery: - Not specified



Primary Contact:

Study Chair
Michael Lovelock, PhD
Memorial Sloan-Kettering Cancer Center

Backup Contact:


Location Contact:

New York, New York 10021
United States

There is no listed contact information for this specific location.

Site Status: N/A

Data Source:

Date Processed: April 03, 2020

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