Randomized Control Trial of the Use of Botox to Treat Chronic Scrotal Pain (ROBOT)

March 8, 2019 updated by: Mount Sinai Hospital, Canada

There are no previous reports on the use of OnabotulinumtoxinA (Botox) to treat men with scrotal pain that we found published.

We proposed a pilot study using Botox to block the nerves on a small group of men with chronic scrotal pain (CSP) who have failed the standard medical therapy. The men must have had temporary relief from a testicular cord block using local anaesthetic drug.

The encourage results of the pilot study has given us the background information to proceed with a formal randomised control trial of Botox vs placebo.

We hypothesized that Botox injections to block the testicular nerve will be effective in providing long term pain relief for men with scrotal pain.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

64

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

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 1X5
        • Mount Sinai Hospital

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 to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Age 18-65
  • Have nociceptive scrotal pain,
  • Have no identifiable, reversible causes for the scrotal pain
  • Have failed standard medical therapy
  • Have responded temporarily to cord blocks

Exclusion Criteria:

  • Are interested in trying to conceive with their partners in the next 6 months,
  • Have any local infection near the site of the injections,
  • Have had an allergic reaction to Botox in the past,
  • Are unable to provide informed consent
  • Have a history of motor neuron disease or neurogenic bladder
  • Who have hemostatic disorder or who are taking aspirin, Coumadin (warfarin), Xarelto (rivaroxaban) or other blood thinners

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Botox
Botox 200 units reconstituted in 10ml of normal saline for a one-time injection
Drug: Botox
Other Names:
  • OnabotulinumtoxinA
Placebo Comparator: Saline
Saline 10ml of normal saline for a one-time injection
Drug: Placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Reduction in the visual analog scales for pain
Time Frame: 6 months after entering in trial
A measure of the change in the visual analog scales for pain.
6 months after entering in trial

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Reduction in scrotal pain
Time Frame: 6 months after entering in trial
It will be assessed by the Chronic Epididymitis Symptom Index score.
6 months after entering in trial

Collaborators and Investigators

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

Sponsor

Mount Sinai Hospital, Canada

Investigators

  • Principal Investigator: Keith Jarvi, MD, Mount Sinai Hospital, Canada

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, 2014

Primary Completion (Actual)

October 1, 2018

Study Completion (Actual)

October 1, 2018

Study Registration Dates

First Submitted

August 28, 2014

First Submitted That Met QC Criteria

September 23, 2014

First Posted (Estimate)

September 25, 2014

Study Record Updates

Last Update Posted (Actual)

March 11, 2019

Last Update Submitted That Met QC Criteria

March 8, 2019

Last Verified

March 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CAN-BTX-RCT

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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