Effects of testosterone replacement in men with opioid-induced androgen deficiency: a randomized controlled trial.
Shehzad Basaria, Thomas G Travison, Daniel Alford...
https://pubmed.ncbi.nlm.nih.gov/25599449/Actively Recruiting
Led by Brigham and Women's Hospital · Updated on 2026-07-27
150
Participants Needed
1
Research Sites
13 weeks
Total Duration
This trial is studying men aged 18 years and older who have chronic non-cancer spinal pain and opioid-induced hypogonadism caused by long-term opioid use. Researchers aim to evaluate whether testosterone replacement therapy can improve pain perception, pain tolerance, sexual function, fatigue, and overall quality of life compared to a placebo. The study is a randomized, double-blind, placebo-controlled trial to assess these effects over time. Participants will receive either testosterone undecanoate injections or placebo injections. The injections are given intramuscularly at a dose of 750 mg at the start of the study, then again at weeks 4 and 14, for a total treatment period of 6 months. There are two groups one receiving the testosterone treatment and the other receiving placebo, to compare their outcomes. During the study, participants will attend visits at baseline, 3 months, and 6 months for assessments. These include questionnaires measuring pain interference, and various tests evaluating pain response to pressure, mechanical, heat, and cold stimuli. Brain connectivity will also be evaluated at baseline and 6 months. Researchers will monitor safety and treatment effects throughout the 6-month treatment period.
CONDITIONS
Pain Alleviation With Testosterone in Opioid-Induced Hypogonadism
J
Julia Crosby
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Brigham and Women's Hospital
Lead Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Testosterone Therapy | Placebo |
|---|---|---|
| What it is | Intramuscular testosterone undecanoate injection administered at baseline, week 4, and week 14 to men with opioid-induced low testosterone and chronic spinal pain. | Intramuscular placebo injection administered at the same three time points as the active treatment group, matching all procedures except for active drug. |
| Primary use or intent | Evaluating whether restoring testosterone levels in men with opioid-induced hypogonadism reduces pain interference and changes sensory pain responses. | Serves as a control to distinguish the effect of testosterone treatment from background pain variability and placebo response. |
| How it is given or performed | Testosterone undecanoate is injected into the muscle at three scheduled clinic visits: at study start, week 4, and week 14. | Placebo injections are given on the same schedule as the testosterone group to maintain participant blinding. |
| Evidence status / published results | Prior randomized and pilot studies suggest testosterone replacement in men with opioid-induced hypogonadism may improve sexual function and potentially influence pain sensitivity, but robust evidence for pain reduction is limited and further confirmation is needed. | No therapeutic effect for testosterone levels or pain reduction is expected from placebo; placebo serves as a measurement control. |
| Important limitations | Evidence for testosterone's role in reducing chronic pain among men with opioid-induced hypogonadism remains limited; existing studies are small and do not establish whether pain reduction is maintained long-term or what patient subgroups benefit most. | Placebo does not provide therapeutic benefit and does not address underlying hypogonadism or its complications; its inclusion is purely for comparison. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - 6 months
Participants receive intramuscular injections of either testosterone undecanoate 750 mg or placebo at baseline, week 4, and week 14 during a 6-month treatment period.
Visits at baseline, 3 months, and 6 months for assessments
Study Type
INTERVENTIONAL
Masking
QUADRUPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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Lead Sponsor