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NCT00142506 · ClinicalTrials.gov registry record · Phase 3

Study of Sildenafil Citrate During and After Radiotherapy/Hormone Therapy for Erectile Function Versus Radiotherapy/Hormone Therapy for Prostate Cancer

A Phase 3 study of Prostate Cancer and Erectile Dysfunction, sponsored by Memorial Sloan Kettering Cancer Center.

Completed
Registry status
Phase 3
Development phase
290
Enrollment target
5
Study locations

NCT00142506: Completed Phase 3 study of Prostate Cancer and Erectile Dysfunction, sponsored by Memorial Sloan Kettering Cancer Center.

NCT00142506 is a Phase 3 study of Prostate Cancer and Erectile Dysfunction that has completed, run by Memorial Sloan Kettering Cancer Center. The registered enrollment target is 290 participants, below the 608-participant average among 735 other Prostate Cancer trials with a reported enrollment target (52% lower). The trial reports 5 study locations across 2 states. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00142506, a Phase 3 study of Prostate Cancer and Erectile Dysfunction, has completed, sponsored by Memorial Sloan Kettering Cancer Center.

COMPLETED
Registry status
Phase 3
Development phase
290 participants
Enrollment target
5
Study locations

Study Summary

Radiation sometimes affects the ability for a person to have a normal erection. Complete loss of erections after radiation treatment can happen in 40-50% of treated patients. There are medications, like sildenafil (also known as Viagra), that can help the ability to get back erections in almost 70% of such patients. The purpose of this study is to see if taking Viagra every day starting right before, during and for about 6 months after treatment, could reduce the risk of long-term erectile dysfunction.

Primary Outcome

The International Index of Erectile Function (IIEF) is used for the evaluation of male sexual function and diagnostic evaluation of Erectile Dysfunction (ED) severity. There are 5 domains of the IIEF: erectile function, orgasmic function, sexual desire, intercourse satisfaction, and overall satisfaction. A score of 0-5 is awarded to each question of the IIEF. Total IIEF scores range from 0-75. Lower scores indicate severe erectile dysfunction (0=severe erectile dysfunction), while higher scores

Interventions

  • DRUG sildenafil citrate and questionaires
  • DRUG placebo tablets and questionaires

Study Locations (5)

New York

  • Memorial Sloan-Kettering Cancer Center at Commack - Commack
  • Memorial Sloan-Kettering Cancer Center - New York
  • Memorial Sloan-Kettering Cancer Center at Mercy Medical Center - Rockville Centre
  • Memorial Sloan-Kettering Cancer Center at Phelps Memorial Hospital Center - Sleepy Hollow

New Jersey

  • Memorial Sloan-Kettering Cancer Center at Basking Ridge - Basking Ridge

Trial Details

FieldValue
Enrollment Target 290 participants
Start Date 2005-02
Est. Completion 2014-04
Phase Phase 3
Memorial Sloan Kettering Cancer Center

1,884 total trials

What the finished NCT00142506 record still lists

NCT00142506 is an interventional study that assigns participants to a tested intervention. The registered 290 participants enrollment target is mid-sized for trials with a published cap, below the 608-participant average among 735 other Prostate Cancer trials with a reported enrollment target (52% lower).

The record links to 2 conditions, with Prostate Cancer appearing as the primary indexed condition, and to 2 interventions - of which sildenafil citrate and questionaires is the first listed.

NCT00142506 lists 5 locations in 2 states (New York, New Jersey).

Frequently Asked Questions

What is clinical trial NCT00142506 about?

NCT00142506 is a clinical study titled "Study of Sildenafil Citrate During and After Radiotherapy/Hormone Therapy for Erectile Function Versus Radiotherapy/Hormone Therapy for Prostate Cancer". Radiation sometimes affects the ability for a person to have a normal erection. Complete loss of erections after radiation treatment can happen in 40-50% of treated patients. There are medications, like sildenafil (also known as Viagra), that can help the ability to get back erections in almost 70% ...

What is the current status of trial NCT00142506?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 290 participants. The study started on 2005-02. Estimated completion is 2014-04.

What conditions does trial NCT00142506 study?

This clinical trial studies the following conditions: Prostate Cancer, Erectile Dysfunction.

What interventions are being tested in trial NCT00142506?

The interventions under investigation include: sildenafil citrate and questionaires (DRUG), placebo tablets and questionaires (DRUG).

Who is sponsoring clinical trial NCT00142506?

This trial is sponsored by Memorial Sloan Kettering Cancer Center, which has 1,884 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00142506 being conducted?

This trial has 5 study locations across New Jersey, New York. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Prostate Cancer

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00142506's enrollment target sits among peer trials

290 169th of 735 higher than 567 of 735 other Prostate Cancer trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Prostate Cancer trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00142506, the US trial registry maintained by the National Library of Medicine. NCT00142506 (mid enrollment · multi site footprint · completed) retrieved and formatted by PlainTrial, see methodology.