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A randomised placebo-controlled trial of testosterone undecanoate in obese men as adjuvant therapy for a weight loss program

A randomised placebo-controlled trial of testosterone undecanoate in obese men as adjuvant therapy for a weight loss program

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12606000404527
Acronym
OSA-T
Enrollment
60
Registered
2006-09-14
Start date
2006-09-01
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This is a randomised placebo-controlled trial of testosterone undecanoate in obese men with obstructive slee apena as adjunctive therapy for a weight loss programme. The aim of the study is to evaluate the additional effect of testosterone replacement on weight loss and motivation in obese (BMI>30kg/m2) men with obstructive sleep apnea undergoing a weight reduction program. The primary endopint is weight loss after 4.5 months with other secondary endpoints including body composition, anthropometry, physical activity, metabolic markers (eg insulin sensitivity, basal metabolic rate) and blood hormone concentrations.

Interventions

This is a randomised placebo-controlled trial of testosterone undecanoate in obese men with obstructive slee apena (OSA) as adjunctive therapy for a weight loss programme.The study will be conducted on an ambulatory basis and involve OSA subjects who are about to commence a standard weight reduction program. Once deemed eligible for the study, at a Screening visit, patients will report to the laboratory every 6 weeks for 18 weeks. They will receive three injections of testosterone (3000mg in tot

This is a randomised placebo-controlled trial of testosterone undecanoate in obese men with obstructive slee apena (OSA) as adjunctive therapy for a weight loss programme.The study will be conducted on an ambulatory basis and involve OSA subjects who are about to commence a standard weight reduction program. Once deemed eligible for the study, at a Screening visit, patients will report to the laboratory every 6 weeks for 18 weeks. They will receive three injections of testosterone (3000mg in total) undecanoate at 0, 6 and 12 weeks. In addition, whilst reporting patients will undergo a variety of assessments including overnight polysomnographies at weeks 0, 6 and 18 weeks. Patient will then reassessed in recovery, at one year

Sponsors

The Woolcock Institute of Medical Research
Lead SponsorOther

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
Male
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

No significant uncontrolled medical problems.

Exclusion criteria

Severe OSA ((minimum oxygen saturation < 65% or RDI > 80) requiring immediate treatment due to severity or increased associated risk (eg Transport worker), Use of drugs that alter androgen action, Contraindications to testosterone therapy, Desire for paternity within the next 12 months, Participation in sports that ban testosterone and require drug monitoring, Psychiatric disorders or drug abuse unless well controlled,Chronic medical conditions likely to interfere with or influence study treatment or safety unless well controlled.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026