In this clinical scenario, an argument can be made to continue testosterone therapy. As such, even if consistent testosterone levels could be achieved, providers issuing prescriptions for compounded testosterone need to consider performing additional monitoring and dose adjustments to ensure appropriate therapeutic levels. Two RCTs compared treatment of testosterone deficient males with SERMs versus testosterone versus placebo and found that sperm concentration was maintained (comparable to placebo) for males treated with the SERMs, but was significantly decreased for males on exogenous testosterone.401, 402 Finally, Helo et al. conducted a prospective, double-blind, RCT comparing the SERM clomiphene citrate versus the AI anastrozole in infertile males with testosterone deficiency. It is rapidly metabolized in the liver; therefore, achieving consistently therapeutic testosterone levels is a challenge. Available studies are retrospective in nature but have suggested that post-RT patients (with or without ADT exposure) placed on testosterone therapy do not experience recurrence of prostate cancer. Currently published studies have not demonstrated an increased risk of biochemical cancer recurrence in post-RP patients who are on testosterone therapy, nor does it define the optimal timing for commencement of testosterone therapy. The treatment and placebo arms did not differ at baseline in terms of age (62.9 years versus 64.4 years, respectively), total testosterone level (320 ng/dL versus 344 ng/dL, respectively), or PSA measurements (1.3 ng/mL in both arms). Included studies had significant heterogeneity with the populations themselves, methods of assessment, study durations, baseline population characteristics, and number of participants, leading the Panel to conclude that there is currently insufficient evidence to determine if testosterone therapy impacts QoL in a meaningful way. Despite the absence of definitive evidence, the Panel recommends that patients with these symptoms be counseled regarding the possibility of improvement on testosterone therapy. If SHBG levels are low/free testosterone levels are high, dose adjustment of the testosterone therapy should be considered. With these recent updates on the safety of testosterone products and changes to the established boxed warning, pharmacists are in an influential position to promote evidence-based counseling on TRT and to advocate for proper follow-up and monitoring. However, the safety of long-term therapy has been questioned in various studies. It is now aware that "testosterone is being used extensively in attempts to relieve symptoms in men who have low testosterone for no apparent reason other than aging."3 These guidelines are provided only as assistance for physicians making clinical decisions regarding the care of their patients. At the same time, your doctor will check your red blood cell levels. If your levels are OK you'll stay on your current dose. Despite the methodological limitations, individual studies have shown a link between low testosterone levels and ED. Likewise, while some literature suggests that food ingestion might affect testosterone levels, the evidence is particularly weak, and the Panel does not recommend that clinicians insist on fasting prior to testing. Among men with traditional (10p.m. to 6a.m.) sleep patterns, peak testosterone values occur around 3-8a.m., with 32-39% of the diurnal total decline occurring within the first 30 minutes of waking.18-23 Older men experience diurnal blunting and more stability in testosterone levels throughout the day, while younger men undergo greater variation. Likewise, while some literature suggests that food ingestion might affect testosterone levels, the evidence is particularly weak, and the Panel does not recommend that clinicians insist on fasting prior to testing.Circadian Rhythm. Given the growing concern and need for proper testosterone therapy, the AUA identified a need to produce an evidence-based document that informs clinicians on the proper evaluation and management of testosterone deficient patients. Testosterone levels should be measured every 6-12 months while on testosterone therapy. Patients should be informed that there is no definitive evidence linking testosterone therapy to a higher incidence of venothrombolic events. "There are no established optimal testosterone levels for women, so most clinicians use a lab reference range to diagnose a woman with high testosterone," Dr. Dorr says. It’s important to note that for people assigned female at birth (AFAB), there’s no exact number for determining high testosterone levels, also known as hyperandrogenism. You can stay on testosterone replacement therapy for as long as it’s benefiting your symptoms and not causing health issues. Women should remain within the female physiologic testosterone range when therapy is used, not chase male-style replacement levels. The AUA guideline is often cited because it uses a total testosterone below 300 ng/dL as a reasonable diagnostic cutoff for testosterone deficiency. Methyltestosterone is an oral androgen modified at the 17-alpha position resulting in decreased first pass hepatic clearance and is approved in the US for treatment of testosterone deficiency. It is possible that exercise programs coupled with diet may have a greater likelihood of success in achieving increases in total testosterone over calorie-restricted diets alone. Across all studies, men had a mean baseline testosterone of 323 ng/dL, mean age of 59.9 years, and were followed for an average 34 weeks, during which time they were administered either a placebo or one of several testosterone modalities. A discussion regarding the benefit of stopping testosterone therapy should include the possibility of a decline in PSA. PSA recurrence in men on testosterone therapy should be evaluated in the same fashion as untreated men. There are limited data in men on active surveillance who are candidates for testosterone therapy. Six patients experienced biochemical recurrence, all of whom had intermediate- or high-risk prostate cancer. Testosterone therapy in women has a much narrower evidence-based indication, with the strongest support in postmenopausal women with hypoactive sexual desire disorder (Davis et al., Journal of Sexual Medicine, 2019; Parish et al., Climacteric, 2021). The question of women's TRT target levels is even more delicate. In younger men, some authors have argued that a one-size-fits-all cutoff may miss clinically relevant low values when symptoms are present. In healthy nonobese men aged 19 to 39, harmonized reference work identified an approximate normal range of 264 to 916 ng/dL, with a median near 531 ng/dL. It helps determine who may qualify for therapy alongside symptoms; it does not mean every treated man should be driven to the same number regardless of response or formulation (Mulhall et al., Journal of Urology, 2018). In conditions where LH is not produced in normal amounts (hypogonadotropic hypogonadism), testosterone deficiency may also result. A survey of 120 patients who were treated for infertility at the University of Illinois-Chicago found that the incidence of testosterone deficiency was 45% in men with non-obstructive azoospermia, 42.9% in men with oligospermia, and 16.7% in men with obstructive azoospermia.159 There does appear to be a trend towards lower total testosterone and a diagnosis of ED. There are inherent challenges in testosterone measurement due to the health status of patients at the time of testing, circadian rhythms in testosterone production, intra-individual variability, and inconsistencies in the assays themselves. The Panel recommends that clinicians use the same laboratory with the same method/instrumentation for serial total testosterone measurement. There is a great deal of variability across studies with respect to the forms of testosterone measured (total versus free), the assays utilized to measure testosterone, the time of day when the sample is obtained, and the number of testosterone measurements taken. Other population-based studies have attempted to measure prevalence, but have not used standard methodology, which makes arriving at a definitive number of testosterone deficiency difficult.