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Hormone Therapy

Cetrorelix Acetate + Testosterone gel for Healthy Subjects

Waitlist Available
Led By Joel K Shoemaker, Ph.D.
Research Sponsored by Western University, Canada
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Free of chronic disease
Moderately active
Must not have
Be younger than 18 years old
Be older than 65 years old
Screening 3 weeks
Treatment Varies
Follow Upafter 7 days gnrh antagonist alone and 7 days gnrh antagonist + testosterone
Awards & highlights
No Placebo-Only Group

Study Summary

This trial will look at the effects of testosterone on the autonomic nervous system (which controls involuntary body functions like heart rate) and blood vessels in men.

Eligibility Criteria

Inclusion Criteria

You will be eligible if you check “Yes” for the criteria below
You do not have any long-term health conditions.
You are able to perform moderate physical activities.


Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~after 7 days gnrh antagonist alone and 7 days gnrh antagonist + testosterone
This trial's timeline: 3 weeks for screening, Varies for treatment, and after 7 days gnrh antagonist alone and 7 days gnrh antagonist + testosterone for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Endothelial function
Forearm blood flow
Muscle sympathetic nerve activity
Secondary outcome measures
Skeletal muscle microvascular blood flow
Other outcome measures
Sex hormones

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

2Treatment groups
Experimental Treatment
Group I: GnRH antagonist aloneExperimental Treatment1 Intervention
Intervention: Cetrorelix acetate (Cetrotide)
Group II: GnRH antagonist + Testosterone add-backExperimental Treatment2 Interventions
Intervention: Cetrorelix acetate (Cetrotide) + Testosterone gel (Androgel)
First Studied
Drug Approval Stage
How many patients have taken this drug
Testosterone gel
Completed Phase 4

Find a Location

Who is running the clinical trial?

Western University, CanadaLead Sponsor
225 Previous Clinical Trials
48,919 Total Patients Enrolled
Joel K Shoemaker, Ph.D.Principal InvestigatorUniversity of Western Ontario, Canada

Media Library

Testosterone gel (Hormone Therapy) Clinical Trial Eligibility Overview. Trial Name: NCT04819204 — N/A
Healthy Subjects Research Study Groups: GnRH antagonist alone, GnRH antagonist + Testosterone add-back
Healthy Subjects Clinical Trial 2023: Testosterone gel Highlights & Side Effects. Trial Name: NCT04819204 — N/A
Testosterone gel (Hormone Therapy) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04819204 — N/A

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What is the highest number of people that are participating in this clinical trial?

"Unfortunately, this trial is presently not recruiting patients. It was posted on June 1st 2021 and the last update occurred on March 25th of the same year. Nevertheless, there are 839 active studies that need healthy subjects and 38 trials actively seeking patients taking Cetrorelix Acetate."

Answered by AI

Is the enrollment of people aged 45 or above being considered for this research project?

"The target demographic for this clinical trial is adults between the age of 18 and 35."

Answered by AI

What criteria must individuals meet to be eligible for this research?

"To qualify for this medical trial, individuals must be between 18 and 35 years old with a healthy status. This study is looking to enroll up to 20 patients."

Answered by AI

What effects can Cetrorelix Acetate bring about in patients?

"Cetrorelix Acetate is a useful treatment for torsion of testis, vanishing testis syndrome and premature birth."

Answered by AI

Are there any spots left in this investigation for volunteers?

"The study's clinicaltrials.gov page suggests that it is not recruiting patients any longer. This trial was first posted on June 1st 2021 and the latest update occured March 25th, 2021. Nonetheless, there are still 877 other trials actively enrolling applicants right now."

Answered by AI

Has Cetrorelix Acetate been tested in any other clinical investigations?

"Currently, 38 research studies related to the efficacy of Cetrorelix Acetate are in progress. 8 of these have advanced to Phase 3 clinical trials and can be found at 130 trial sites across Houston Texas."

Answered by AI

Who else is applying?

What state do they live in?
How old are they?
18 - 65
What site did they apply to?
the University of Western Ontario
What portion of applicants met pre-screening criteria?
Did not meet criteria
Met criteria
~0 spots leftby Dec 2023