Testosterone Treatment in Men With Chronic Kidney Disease

Inclusion Criteria:

* Men between ages of 18-85 years of age
* eGFR 15-45 ml/min/1.73m2 by MDRD (Modification of Diet in Renal Disease) equation
* Subnormal total serum T concentrations (\<300 ng/dl) on two separate occasions in morning
* Symptoms of hypogonadism (as per Endocrine Society guidelines): low libido, erectile dysfunction, fatigue, irritability, depressed mood, poor concentration, increased body fat, decreased muscle bulk, reduced physical performance, sleep disturbance, loss of body hair (15)
* Normal iron stores as defined by serum ferritin ≥100 ng/mL and transferrin saturation (TSAT) ≥20%.

Exclusion Criteria:

* Use of TRT currently or in the past 6 months, including use of over-the-counter androgen containing health supplements (e.g., DHEA)
* Hematocrit \>48% (as per Endocrine Society guidelines)(15)
* Treatment with erythropoiesis stimulating agents (ESA)
* Uncontrolled blood pressure (\>180/100 mm Hg)
* Heart Failure, class III or IV
* Myocardial infarction, stroke, or heart surgery in the past 3 months
* Breast cancer
* History of prostate cancer
* Prostate specific antigen (PSA) \>4 ng/ml, unless prostate cancer has been ruled out by a urologist (documented in physician notes)
* HIV or untreated hepatitis C
* Untreated, severe obstructive sleep apnea
* Initiated iron replacement in the last 3 months
* deep venous thrombosis or pulmonary embolism in the last 3 months
* recurrent (more than once) deep venous thrombosis or pulmonary embolism
* use of warfarin
* Planning to have children in the next one year