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| Name | Class |
|---|---|
| The Swedish School of Sport and Health Sciences | OTHER |
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Trial objectives and purpose: The primary aim is to study the effects of moderately increased testosterone concentration on aerobic performance (endurance running time to exhaustion), and secondary aims to investigate the effects on submaximal work on treadmill, anaerobic capacity, muscle strength, body composition, behaviour and well-being, blood parameters, steroid hormone profile, gynecological parameters and skeletal muscle parameters in young healthy women in a double-blind, randomized, placebo-controlled trial.
Treatment: Ten weeks of transdermal treatment with testosterone cream 10 mg daily or placebo cream in a randomized design (1:1).
Primary outcome: Aerobic performance (running time to exhaustion on treadmill)
Secondary outcomes:
Study population: Fifty healthy menstruating women will be included in the study and randomized to treatment with testosterone or placebo. Inclusion criteria: 18-35 yrs of age; body mass index (BMI) 19-25; non-smoking; a moderate to high self-reported level of recreational physical activity; not taking hormonal contraception and willing to use highly efficient non-hormonal contraception during the study (intrauterine device, bilateral tubal occlusion, vasectomised partner, same-sex partner, or sexual abstinence); accepting to not participate in any sports competitive event during the study period plus one month. Exclusion criteria: the presence of cardiovascular, liver, biliary or renal disease; hyperlipidemia; uncontrolled high blood pressure; endocrinological disorder; oligomenorrhea (menstrual intervals of more than 6 weeks) or amenorrhea (no menstruation for at least 3 months); pregnancy; a history of thromboembolic disorder; any malignancy; and intake of hormonal contraception the last two months prior to the study.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group A | Active Comparator | Testosterone cream 1% (Andro-Feme® ) |
|
| Group B | Placebo Comparator | Placebo cream |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Testosterone cream 1% (Andro-Feme® ) | Drug | Testosterone cream 10 mg (1 ml) daily, supplied every evening via a dose applicator to the upper outer thigh for 10 weeks. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Aerobic performance | Change in endurance exercise time to exhaustion on treadmill | Baseline and 10 weeks of treatment |
| Measure | Description | Time Frame |
|---|---|---|
| Submaximal work on treadmill | Change in oxygen uptake (L/min, mL/kg x min) | Baseline and 10 weeks of treatment |
| Anaerobic performance (Wingate test) | Change in average power output on a cycle ergometer (W) |
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Inclusion criteria are: healthy menstruating women; 18-35 yrs of age; BMI 19-25; non-smoking; having a moderate to high self-reported level of recreational physical activity (minimum of three hours of endurance and/or strength training per week); not taking hormonal contraception; and willing to use highly efficient non-hormonal contraception during the study such as:
Exclusion criteria are: the presence of cardiovascular, liver, biliary or renal disease; hyperlipidemia; uncontrolled high blood pressure; endocrinological disorder; oligomenorrhea (menstrual intervals of more than 6 weeks) or amenorrhea (no menstruation for at least 3 months); pregnancy; a history of thromboembolic disorder; any malignancy; and intake of hormonal contraception the last two months prior to the study.
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| Name | Affiliation | Role |
|---|---|---|
| Angelica Lindén Hirschberg | Department of Obstetrics and Gynecology, Karolinska University Hospital, Stockholm, Sweden | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Obstetrics and Gynecology, Karolinska University Hospital | Stockholm | 171 76 | Sweden |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 23557056 | Background | Bermon S, Ritzen M, Hirschberg AL, Murray TH. Are the new policies on hyperandrogenism in elite female athletes really out of bounds? Response to "out of bounds? A critique of the new policies on hyperandrogenism in elite female athletes". Am J Bioeth. 2013;13(5):63-5. doi: 10.1080/15265161.2013.776129. No abstract available. | |
| 25137421 |
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| ID | Term |
|---|---|
| D053716 | Female Athlete Triad Syndrome |
| ID | Term |
|---|---|
| D000080822 | Relative Energy Deficiency in Sport |
| D001068 | Feeding and Eating Disorders |
| D001523 | Mental Disorders |
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A double-blind, randomized, placebo-controlled, phase II trial of in total 50 women randomized to two parallel groups (1:1): Group A treated with transdermal testosterone or Group B treated with placebo for ten weeks.
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The testosterone cream and the placebo cream will be of identical appearance and will have the same texture to maintain double blind treatment.
| Placebo cream | Drug | Placebo cream (1 ml) daily, supplied every evening via a dose applicator to the upper outer thigh for 10 weeks. |
|
| Baseline and 10 weeks of treatment |
| Muscle strength (knee extension torque) | Change in peak muscle strength (N) and strength endurance (time) | Baseline and 10 weeks of treatment |
| Functional power development-jump tests | Change in jump height (m) by squat jump and countermovement jump | Baseline and 10 weeks of treatment |
| Physical activity during one week before treatment and one week before the end of treatment | Change in accelerometer counts | Baseline and 10 weeks of treatment |
| Muscle mass | Change in muscle mass (g) by DXA | Baseline and 10 weeks of treatment |
| Body fat percentage | Change in body fat (%) by DXA | Baseline and 10 weeks of treatment |
| Bone mineral density | Change in bone mineral density (g/cm2) by DXA | Baseline and 10 weeks of treatment |
| Psychological General Well-Being | Change in Psychological General Well-Being (PGWB) score 0 (poor quality of life) and 110 (good quality of life) | Baseline and 10 weeks of treatment |
| Mood | Change in mood (POMS) score 0 (not at all) to 4 (very much) | Baseline and 10 weeks of treatment |
| Confidence | Change in confidence (Confidence Questionnaire) score 1 (not at all) to 5 (very much) | Baseline and 10 weeks of treatment |
| Aggression | Change in aggression (Aggression Questionnaire) score 1 (does not fit in with me at all) to 5 (totally fits in with me) | Baseline and 10 weeks of treatment |
| Blood parameters | Change in blood parameters (hemoglobin, hematocrit, reticulocytes, ferritin, CRP) | Baseline and 10 weeks of treatment |
| Steroid hormone profile in blood and urine | Change in steroid hormones and metabolites in blood (testosterone, dihydrotestosterone, androstenedione, estradiol, dehydroepiandrosterone and its sulfate, cortisol, progesterone, other reproductive hormones (LH, FSH, AMH), binding protein (SHBG) and steroid hormones and metabolites in urine (estrone, estrone sulfate, androsterone glucuronide, 5α androstane-3α, 17β-diol 17-glucuronide, androst-5-ene-diol-3β, 17β-diol, testosterone, androstenedione, epitestosterone, androsterone, etiocholanolone). | Baseline and 10 weeks of treatment |
| Gynecological evaluation | Change in ultrasound assessments of the endometrium (mm) and ovaries (volume) | Baseline and 10 weeks of treatment |
| Skeletal muscle | Change in morphology and concentration of metabolic enzymes (HAD, SC), markers of muscle protein synthesis (mTOR, p70), as well as markers from the muscle atrophy pathway (MABbx, MuRF-1) | Baseline and 10 weeks of treatment |
| Bermon S, Garnier PY, Hirschberg AL, Robinson N, Giraud S, Nicoli R, Baume N, Saugy M, Fenichel P, Bruce SJ, Henry H, Dolle G, Ritzen M. Serum androgen levels in elite female athletes. J Clin Endocrinol Metab. 2014 Nov;99(11):4328-35. doi: 10.1210/jc.2014-1391. Epub 2014 Aug 19. |
| 1403624 | Background | Buss AH, Perry M. The aggression questionnaire. J Pers Soc Psychol. 1992 Sep;63(3):452-9. doi: 10.1037//0022-3514.63.3.452. |
| 15950641 | Background | Chang WY, Knochenhauer ES, Bartolucci AA, Azziz R. Phenotypic spectrum of polycystic ovary syndrome: clinical and biochemical characterization of the three major clinical subgroups. Fertil Steril. 2005 Jun;83(6):1717-23. doi: 10.1016/j.fertnstert.2005.01.096. |
| 18413618 | Background | Davis S, Papalia MA, Norman RJ, O'Neill S, Redelman M, Williamson M, Stuckey BG, Wlodarczyk J, Gard'ner K, Humberstone A. Safety and efficacy of a testosterone metered-dose transdermal spray for treating decreased sexual satisfaction in premenopausal women: a randomized trial. Ann Intern Med. 2008 Apr 15;148(8):569-77. doi: 10.7326/0003-4819-148-8-200804150-00001. |
| 19850682 | Background | Davis SR, Hirschberg AL, Wagner LK, Lodhi I, von Schoultz B. The effect of transdermal testosterone on mammographic density in postmenopausal women not receiving systemic estrogen therapy. J Clin Endocrinol Metab. 2009 Dec;94(12):4907-13. doi: 10.1210/jc.2009-1523. Epub 2009 Oct 22. |
| 17653960 | Background | El-Hage G, Eden JA, Manga RZ. A double-blind, randomized, placebo-controlled trial of the effect of testosterone cream on the sexual motivation of menopausal hysterectomized women with hypoactive sexual desire disorder. Climacteric. 2007 Aug;10(4):335-43. doi: 10.1080/13697130701364644. |
| 23633205 | Background | Fenichel P, Paris F, Philibert P, Hieronimus S, Gaspari L, Kurzenne JY, Chevallier P, Bermon S, Chevalier N, Sultan C. Molecular diagnosis of 5alpha-reductase deficiency in 4 elite young female athletes through hormonal screening for hyperandrogenism. J Clin Endocrinol Metab. 2013 Jun;98(6):E1055-9. doi: 10.1210/jc.2012-3893. Epub 2013 Apr 30. |
| 24845394 | Background | Fooladi E, Reuter SE, Bell RJ, Robinson PJ, Davis SR. Pharmacokinetics of a transdermal testosterone cream in healthy postmenopausal women. Menopause. 2015 Jan;22(1):44-9. doi: 10.1097/GME.0000000000000259. |
| 14501599 | Background | Goldstat R, Briganti E, Tran J, Wolfe R, Davis SR. Transdermal testosterone therapy improves well-being, mood, and sexual function in premenopausal women. Menopause. 2003 Sep-Oct;10(5):390-8. doi: 10.1097/01.GME.0000060256.03945.20. |
| 15476439 | Background | Gooren LJ, Bunck MC. Transsexuals and competitive sports. Eur J Endocrinol. 2004 Oct;151(4):425-9. doi: 10.1530/eje.0.1510425. |
| 19461542 | Background | Hagmar M, Berglund B, Brismar K, Hirschberg AL. Hyperandrogenism may explain reproductive dysfunction in olympic athletes. Med Sci Sports Exerc. 2009 Jun;41(6):1241-8. doi: 10.1249/MSS.0b013e318195a21a. |
| 20150325 | Background | Meriggiola MC, Jannini EA, Lenzi A, Maggi M, Manieri C. Endocrine treatment of transsexual persons: an Endocrine Society Clinical Practice Guideline: commentary from a European perspective. Eur J Endocrinol. 2010 May;162(5):831-3. doi: 10.1530/EJE-09-1091. Epub 2010 Feb 11. |
| 24281237 | Background | Huang G, Basaria S, Travison TG, Ho MH, Davda M, Mazer NA, Miciek R, Knapp PE, Zhang A, Collins L, Ursino M, Appleman E, Dzekov C, Stroh H, Ouellette M, Rundell T, Baby M, Bhatia NN, Khorram O, Friedman T, Storer TW, Bhasin S. Testosterone dose-response relationships in hysterectomized women with or without oophorectomy: effects on sexual function, body composition, muscle performance and physical function in a randomized trial. Menopause. 2014 Jun;21(6):612-23. doi: 10.1097/GME.0000000000000093. |
| 25462800 | Background | Jovanovic H, Kocoska-Maras L, Radestad AF, Halldin C, Borg J, Hirschberg AL, Nordstrom AL. Effects of estrogen and testosterone treatment on serotonin transporter binding in the brain of surgically postmenopausal women--a PET study. Neuroimage. 2015 Feb 1;106:47-54. doi: 10.1016/j.neuroimage.2014.11.003. Epub 2014 Nov 11. |
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| 12749436 | Background | Rickenlund A, Carlstrom K, Ekblom B, Brismar TB, von Schoultz B, Hirschberg AL. Hyperandrogenicity is an alternative mechanism underlying oligomenorrhea or amenorrhea in female athletes and may improve physical performance. Fertil Steril. 2003 Apr;79(4):947-55. doi: 10.1016/s0015-0282(02)04850-1. |
| 9711680 | Background | Slayden SM. Risks of menopausal androgen supplementation. Semin Reprod Endocrinol. 1998;16(2):145-52. doi: 10.1055/s-2007-1016265. |
| 17852804 | Background | Turpeinen U, Linko S, Itkonen O, Hamalainen E. Determination of testosterone in serum by liquid chromatography-tandem mass spectrometry. Scand J Clin Lab Invest. 2008;68(1):50-7. doi: 10.1080/00365510701496496. Epub 2007 Jun 24. |
| 16750207 | Background | Zang H, Carlstrom K, Arner P, Hirschberg AL. Effects of treatment with testosterone alone or in combination with estrogen on insulin sensitivity in postmenopausal women. Fertil Steril. 2006 Jul;86(1):136-44. doi: 10.1016/j.fertnstert.2005.12.039. Epub 2006 Jun 5. |
| 17341565 | Background | Zang H, Sahlin L, Masironi B, Eriksson E, Linden Hirschberg A. Effects of testosterone treatment on endometrial proliferation in postmenopausal women. J Clin Endocrinol Metab. 2007 Jun;92(6):2169-75. doi: 10.1210/jc.2006-2171. Epub 2007 Mar 6. |
| 19366676 | Background | Zethraeus N, Kocoska-Maras L, Ellingsen T, von Schoultz B, Hirschberg AL, Johannesson M. A randomized trial of the effect of estrogen and testosterone on economic behavior. Proc Natl Acad Sci U S A. 2009 Apr 21;106(16):6535-8. doi: 10.1073/pnas.0812757106. Epub 2009 Apr 6. |
| 35498440 | Derived | Horwath O, Moberg M, Hirschberg AL, Ekblom B, Apro W. Molecular Regulators of Muscle Mass and Mitochondrial Remodeling Are Not Influenced by Testosterone Administration in Young Women. Front Endocrinol (Lausanne). 2022 Apr 14;13:874748. doi: 10.3389/fendo.2022.874748. eCollection 2022. |
| 33274381 | Derived | Elings Knutsson J, Andersson A, Baekken LV, Pohanka A, Ekstrom L, Hirschberg AL. Disposition of Urinary and Serum Steroid Metabolites in Response to Testosterone Administration in Healthy Women. J Clin Endocrinol Metab. 2021 Mar 8;106(3):697-707. doi: 10.1210/clinem/dgaa904. |
| 31615775 | Derived | Hirschberg AL, Elings Knutsson J, Helge T, Godhe M, Ekblom M, Bermon S, Ekblom B. Effects of moderately increased testosterone concentration on physical performance in young women: a double blind, randomised, placebo controlled study. Br J Sports Med. 2020 May;54(10):599-604. doi: 10.1136/bjsports-2018-100525. Epub 2019 Oct 15. |