1 Recognizing and Managing Testosterone Deficiency J. Bruce Redmon, M.D. Professor Division of Endocrinology Departments of Medicine and Urologic Surgery
2 Disclosure Information I have no financial relationships to disclose. I will discuss off label use and/or investigational use in my presentation.
3 Outline Evaluate men for testosterone deficiency Summarize current data on risks/benefits of testosterone treatment Identify options for management of testosterone deficiency in various clinical situations
4 Testosterone Deficiency Secondary Hyperprolactinemia-tumor,drugs Sellar/suprasellar tumor Infarction Medication-opiates, MJ Infiltrative-sarcoidosis, histiocytosis hemochromatosis,hypophysitis Chronic illness, malnutrition Congenital-Kallmans Iatrogenic Surgery, XRT Idiopathic GnRH H P LH -- Free T SHBG-T Primary Congenital Klinefelter Trauma Infection Iatrogenic-XRT,chemo Idiopathic Autoimmune -? T T SHBG - aging, hyperthyroidism, hepatitis, estrogens, anticonvulsants - obesity, hypothyroidism, nephrotic syndrome androgens Alb-T Total Testosterone
5 Testosterone and Aging
6 Testosterone and Aging Total T SHBG Free T DHT
7 Normal Testosterone Framingham Heart Study Young healthy men Mean/Median 700 ng/dl (FT 14 ng/dl) 2.5 th 350 (FT 7) 1 st 280 (FT 5-6) Univ Washington very healthy older men Mean 420 ng/dl; 20% < 300 ng/dl EMAS Late onset hypogonadism 3 sexual symptoms-libido, AM erections, ED T < 320 ng/dl and FT < 6.4 ng/dl
8 NEJM 9/12/13
9 T Levels and Effects Baseline T ng/dl Incr body fat < 350 Decr lean mass < 200 Decr leg strength < 45 (female levels) Decr sexual desire < 200 Decr erectile function < 200
10 Clinical Trials
11 Randomized Trials of Testosterone Therapy in Older Men Study Snyder Sih Amory Nair T Trials (1999) (1997) (2004) (2006) (2016) N Age (yrs) Duration 3 yr 1 yr 3 yr 2 yr 1 yr T (ng/dl) Pre/Post 367/ / / / /450 (FT 6/11) Outcomes LBM/FM Strength Physical perf Subjective physical fxn Sex fx, E BMD Body fat Grip strength Memory LBM/FM Grip strength Physical perf BMD Cognitive fxn Anxiety/depression LBM/FM Strength Physical perf QOL BMD Glu tol/is Sexual fxn Physical fxn Vitality
13 The Testosterone Trials Response to 2003 IOM recommendation for short term clinical trials in older men with low T and clinical conditions possibly related to low T. Coordinated set of 7 DB/PC trials. Three main trials Sexual Function, Physical Function, Vitality Four additional Cognitive Function, Anemia, Bone, Cardiovascular Men 65, av T < 275 ng/dl on 2 samples (neither > 300). One year active treatment daily T gel or placebo. Treatment target ng/dl.
14 The Testosterone Trials Screened 51,000 men to enroll 790 (1.5%) main reason insufficiently low T. Baseline Age 72, BMI 31 Av T/FT 230/6 ng/dl; SHBG 30 nm, E2 20 pg/ml. Treatment Av T/FT 450/15 ng/dl; SHBG 30 nm, E2 30 pg/ml.
15 SFT - 1 Outcome
16 IIEF EF Score Baseline Treatment Normal - 21 sildenail wt loss Placebo T
17 PFT - 1 Outcome
18 VT - 1 Outcome
19 Global Responses
20 Adverse Events Deaths Prostate Cancer Incr Hgb MI, Stroke, CV Death P T P T P T P T Year Year Total
21 TOM Trial - 65 and older (av age 74) - Some degree of limited mobility - T ng/dl or FT < 5 ng/dl (av 240/4.5 ng dl) - Aggressive Rx goal ng/dl (av 574 ng/dl) NEJM, 2010
22 Conclusion? If testosterone is low enough and you raise it high enough there may be some (statistical?) benefit? Sexual symptoms may be those most likely to benefit? Short term (1 yr) seems safe (if not too aggressive)?
23 Management Issues Men on T treatment who may not need it. Men on T who want to have children. Monitoring therapy.
24 Dec yo man with dx of hypogonadism recently on T Rx with severe oligospermia and desire to conceive.
25 Oct 2011 Eval of ED Easy fatigue, decr strength/endurance Father with hx of hypogonadism. Pertinent (-) Libido not low Not sad, grumpy No decrease in ability to play sports Doesn t fall asleep after dinner No deterioration in work performance BMI 32, atrophic L testis
26 Lab tests T 274 ng/dl ( ) FT 7.5 (9-30) SHBG 12 nm (13-89) LH 3.2 miu/ml ( ) FSH 1.8 (1 10) Testicular US nl size testes Dx of hypogonadism
27 Started on daily transdermal T Rx. T levels over next year on Rx, Nl Hgb (15 16 range), LH suppressed
28 Summer married Aug 2013 wished to conceive T 928, LH < 0.2 Semen analysis volume 2 ml, no sperm Stopped T. Sept 2013 SA 2.5 ml, no sperm Oct 2013 SA 1 ml, 1 mil/ml
29 Dec 2013 came to see us. Continued off T More problems maintaining erections No HA, change in vision,breast sx No medications, drug use BMI 27, nl BP, nl virilized, VF full, no gynecomastia, testes L 12 ml, R 15-20, nl consistency. Assessment Suppression of HPG axis by exogenous T; question dx of hypogonadism.
30 Recc: Recheck labs now assuming low: Wait let HPG axis recover on its own, might take a few more months. Clomiphene citrate to stimulate axis, speed recovery. ED -? Relationship to T status, use PDI.
31 Labs T 456, SHBG 28, LH 2.5 SA 3.5 ml, 52 mil/ml
32 MacIndoe, JIM 1997 HPG Axis Recovery
33 Bagatell, 1993 JCEM Recovery of Spermatogenesis
34 30 yo man dx idiopathic hypogonadotropic hypogonadism on T therapy, wishes to conceive. Sx fatigue, mood swings, anxiety, depressed mood; more recently ED, decr libido. T levels ( ); SHBG 30,LH 1.4; MRI pituitary - normal. Started on T cypionate injections. Five mos later pt/wife wish to conceive.
35 Seen in our clinic on T Rx approx 5 mos. Three prev pregnancies (two with current partner), most recent 3 yrs ago. Exam nl virilization; testes nl size. T 1320, LH, FSH < 0.1 on therapy. Semen analysis 4.5 ml, est 20 immotile sperm total in sample. Trial of clomiphene 12.5 mg daily.
36 One month T 706, LH months SA 2.8 ml, 6.7 mil/ml, 79% motility. Shortly after wife pregnant. After first trimester stopped clomiphene. 2 months later T = 662, LH months later T = 306, LH 1.7.
37 Clomiphene Citrate Mixed estrogen agonist/antagonist. Stimulates gonadotropins. Off label use in men. Typical doses mg a day.
38 Testosterone Response to Clomiphene Testosterone (ng/dl) Pre Post Clomiphene Citrate 12.5 mg daily
39 Aromatase Inhibitors
40 Weight Loss and Testosterone Levels Corona, Eur J Endocrin, 2013
41 Testosterone Treatment Options
42 Testosterone Therapy Options Intramuscular T esters T enanthate, T cypionate, mg/1-3 wks T undecanoate, 750 mg/10 weeks Transdermal patch once daily Transdermal gel/spray once daily Buccal preparation twice daily Nasal gel three times daily Subcutaneous testosterone pellets, 3-6 mos
43 Variability in T Treatment Levels Swerdloff JCEM 2015
45 Monitoring Therapy Improvement in symptoms are they better? Monitor hemoglobin or hematocrit. Prostate monitoring (?) Signs of excess treatment acne, breast development. Sleep apnea? Dexa
46 Conclusions Unequivocal hypogonadism is uncommon, generally easy to diagnose as to etiology and treatment appears warranted (if the patient wants it). Most men endocrinologists see for possible hypogonadism probably aren t hypogonadal or have mild idiopathic hypogonadotropic hypogonadism of uncertain clinical significance. We have an increasing number of modalities to treat hypogonadism. The challenges are to better understand the risks/benefits of treatment, how to identify men who benefit from treatment and how to appropriately monitor men on treatment.
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