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Expertise-Based Randomized Controlled Trial of Scrotal Versus Inguinal (Standard) Orchidopexy on Postoperative Pain

Principle Investigator: Dr. Luis Braga

Funded By: McMaster Surgical Associates Grant

Current Enrolment Number: 174

Study Status: ​Completed

Study Summary

The primary objective of the EXPRESSO randomized controlled trial is to determine the difference in post-operative pain between scrotal and inguinal orchidopexy. This study aims to recruit 162 patients between the ages of 10-95 months who have been diagnosed with low-lying palpable undescended testes requiring orchidopexy. The EXPRESSO study is being carried out at McMaster Children's Hospital.


  • Clinical Trials Registry Number: NCT02158780
  • Ethics Approval Letter: REB#14-201

Contact Us

For more information on the EXPRESSO study, please contact the EXPRESSO Research Coordinator:

Melissa McGrath, BASc. (Hons)
phone:905-521-2100 x. 73654

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