A Phase 2 interventional study of Testosterone Undecanoate 750 MG/3 ML Intramuscular Solution [AVEED] and placebo in Hypogonadism, Male and Fatigue Syndrome, Chronic, sponsored by Seattle Institute for Biomedical and Clinical Research. Recruiting at 2 sites in United States. Open to male participants aged 18 Years to 54 Years. Per ClinicalTrials.gov, last updated 2026-06-22.
Sponsored by Seattle Institute for Biomedical and Clinical Research · Phase 2, Interventional, and Treatment
The overall goal of this study is to evaluate the effect of a testosterone drug called Depo-Testosterone (or 'testosterone cypionate'), an FDA-approved drug for improving fatigue, sexual function, quality of life, body composition, muscle strength, and physical activity in young cancer survivors who report fatigue and have low testosterone. Main hypothesis is that Testosterone administration in young male cancer survivors who are in remission for at least 1 year, report cancer-related fatigue and have symptomatic testosterone deficiency will be associated with greater improvements in fatigue scores compared with placebo.
The overall goal of this proposal is to evaluate the efficacy of testosterone replacement therapy in improving fatigue and other outcomes such as sexual function, quality of life, body composition, muscle strength and physical activity in a double-blind, randomized, placebo-controlled trial in young cancer survivors who report fatigue and have testosterone deficiency.
Fatigue is one of the most prevalent and debilitating symptoms in men with cancer affecting 70-100% of patients irrespective of their age. Cancer-related fatigue is experienced by patients not only during active cancer treatment, but is also highly prevalent in cancer survivors who exhibit persistent fatigue months to years after the end of their treatment with the highest prevalence being in recipients of chemotherapy and/or radiation therapy.
In addition to fatigue, sexual dysfunction is also highly prevalent in male cancer survivors. Male cancer survivors also have increased fat mass and decreased lean body mass, a phenotype that predisposes them to reduced muscle strength. This phenotype of fatigue, sexual dysfunction and adverse body composition is commonly encountered in non-cancer patient populations with testosterone deficiency, a condition which is also highly prevalent (50-90%) in cancer survivors. Pivotal trials of testosterone replacement therapy in non-cancer patient populations have shown an improvement in fatigue, sexual function and body composition in men randomized to testosterone compared with placebo. However, the efficacy of testosterone replacement therapy on cancer-related fatigue has not been studied.
75 studies on the registry are indexed under Eunuchism; 21 are open to participants now.
This study's planned enrollment of 240 is above the median of 60 across 55 interventional studies indexed under Eunuchism.
Browse Eunuchism studies →Seattle Institute for Biomedical and Clinical Research is the lead sponsor of 49 studies on the registry; 4 are open to participants now.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Myocardial infarction, acute coronary syndrome, revascularization surgery, or stroke within 3 months
o Previous stroke with residual cognitive or functional deficits; score \<24
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
MMSE and MoCA
Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HbA1c
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Testosterone undecanoate injection 750 MG/3 ML
Drug: Testosterone Undecanoate 750 MG/3 ML Intramuscular Solution [AVEED]
clinical grade saline 0.9% sodium chloride injection
Other: placebo
Drug page: Testosterone undecanoate
first two doses four weeks apart; following three more doses every ten weeks.
Also known as: study drug
first two doses four weeks apart; following three more doses every ten weeks.
Fatigue change
(Functional Assessment of Chronic Illness Therapy-Fatigue Scale (FACIT-F) questionnaire
Time frame: 9 months
Sexual function change
Harbor-UCLA 7-day Sexual Function Questionnaire
Time frame: 9 months
Sexual function change
International Index of Erective Function (IIEF) questionnaire
Time frame: 9 months
Body composition change
Lean body mass and fat mass (kg) measured by dual energy x-ray absorptiometry (DEXA)
Time frame: 9 months
Changes to mood and well-being
Mood and well-being will be assessed by the Positive and Negative Affect Scale (PANAS) affectivity balance scale, which includes 10 questions each for Positive Affect and Negative Affect. Many behavioral scientists consider affectivity as the cleanest window on an individual's wellbeing. The most sensitive indicator of impaired wellbeing has been shown to be affective dysregulation, which is reflected in affectivity balance. The latter incorporates negative affects (e.g., anxiety, depression) as well as positive affects (e.g., joy).
Time frame: 9 months
Muscle strength change
Maximal voluntary muscle strength in the lower extremities will be assessed by conducting the leg press exercise by the 1-repetition maximum method and assessing loaded stair climb power.
Time frame: 9 months
Sleep quality change
Pittsburgh Sleep Quality Index (PSQI)
Time frame: 9 months
Sleep quality change
Insomnia Severity Index (ISI)
Time frame: 9 months
Sleep quality change
Actigraphy
Time frame: 9 months
Daily physical activity change
Validated triaxial accelerometry (actigraphy)
Time frame: 9 months
Plan to share: No
No publications or documents are linked to this record.
Started Mar 2021 (actual). Primary completion is estimated for Jan 2027, 70 months after the start.
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Studies of the drug tested here: Testosterone undecanoate
Seattle Institute for Biomedical and Clinical Research