Overview of Testosterone10, 11, 12
Testosterone is a naturally occurring steroid hormone that is made from cholesterol and is responsible for the development of male sexual characteristics. Females also produce testosterone, but in smaller amounts. Testosterone is produced by the testes in men and by the ovaries in women, although small quantities are also produced by the adrenal glands in both sexes. Testosterone plays an important role within the human body, including regulation of libido and sex drive, bone density, muscle mass, brain function, and mood. In some individuals, the body produces too little testosterone and testosterone replacement therapy is required. Testosterone replacement therapy can treat a variety of conditions such as delayed puberty in males, AIDS-associated wasting syndrome, menopausal symptoms, palliative treatment of breast cancer, and male hypogonadism.
Testosterone Deficiency10, 11, 14
Testosterone levels rise during male puberty, peak during the late teen years, and then level off. After age 30, it’s normal for a man’s testosterone levels to decrease slightly every year. If the body produces too little testosterone it can lead to a condition called hypogonadism. Male hypogonadism refers to a decrease in one or both of the two major functions of the testes: sperm production or testosterone production. These abnormalities can result from disease of the testes (primary hypogonadism) or disease of the hypothalamus or pituitary gland (secondary hypogonadism). In the brain, the hypothalamus tells the pituitary gland how much testosterone is needed, and the pituitary relays that information to the testicles. The clinical features of male hypogonadism depend upon the age of onset, severity of testosterone deficiency, and whether there is a decrease in one or both of the two major functions of the testes.
What are the symptoms of low testosterone?
- Low energy
- Low libido
- Low bone mineral density
- Decrease in body hair
- Difficulty gaining muscle mass despite vigorous exercise Changes in cholesterol levels
- Decrease in hemoglobin and mild anemia
Testosterone Replacement Therapy
When appropriate, male hypogonadism can be treated with testosterone replacement therapy. There are several testosterone delivery systems currently available in the prescription drug marketplace. Examples include:
- Transdermal patch: Androderm
- Topical gel: Androgel, Axiron, Fortesta, Testim
- Buccal tablet: Striant
- Implantable pellet: Testopel
- Intramuscular injections: Aveed, testosterone cypionate, testosterone enanthate, testosterone propionate
Table 1 – Testosterone Product Examples
|Drug Name||Dosage Form||Cost per month (AWP)*|
|Testosterone cypionate||Intramuscular injection||$45.00|
*Note: Monthly costs are estimates reflecting typical doses and may vary based on patient-specific dosage regimens.
MedTrakRx’s Cost Management Strategy13, 15, 16
As the table above illustrates, testosterone replacement products can be costly. Testosterone replacement therapy should be considered in adult males who have symptoms of hypogonadism as well as laboratory results demonstrating low serum testosterone concentrations. Serum testosterone concentrations should be measured in the morning (the time of day when testosterone levels are the highest). These treatment recommendations are supported by The American Association of Clinical Endocrinologists and The American College of Endocrinology. Based on these guidelines, MedTrakRx recommends that all plans administer a prior authorization (PA) process for testosterone replacement therapy. This utilization management strategy requires documentation of two pretreatment, low morning serum testosterone levels obtained within the past 12 months and at least two signs or symptoms of testosterone deficiency. Application of PA criteria ensures that benefit coverage for testosterone replacement therapy is provided in scenarios in which treatment is clinically appropriate.
- Clinical Pharmacology [Internet]. Tampa (FL): Elsevier. c2017- [cited 2017 February 17]. Available from: http://www.clinicalpharmacology.com
- Micromedex [Internet]. Greenwood Village, CO: Truven Health Analytics. c2017- [cited 2017 February 17]. Available from http://www.micromedexsolutions.com/
- McEvoy, M. “The Endocrine Journey: Steroidal Hormones & Their Pathways.” January 2012. https://metabolichealing.com/the-endocrine-journey-steroidal-hormones-their-pathways/ Accessed February 22, 2017.
- Crawford, E.; Barqawi, A.; O’Donnell, C.; et al. “The association of time of day and serum testosterone concentration in a large screening population.” Urological Oncology. March 2007. 100 (3): 509-513.
- Kumar, P.; Kumar, N.; Thakur, D.; et al. “Male hypogonadism: Symptoms and treatment.” Journal of Advanced Pharmaceutical Technology & Research. 2010. 1(3): 297-301.
- American Association of Clinical Endocrinologists Medical Guidelines for Clinical Practice for the Evaluation and Treatment of Hypogonadism in Adult Male Patients-2002 Update. Endocrine Practice. 2002; 8:439-456.
- Harman et al. Longitudinal Effects of Aging on Serum Total and Free Testosterone Levels in Health Men. The Journal of clinical Endocrinology & Metabolism. 2001; 86: 724-731.
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