title: The Effect of Testosterone and Fenofibrate, Administered Alone or in Combination, on Cardiometabolic Risk Factors in Men with Late-Onset Hypogonadism and Atherogenic Dyslipidemia.
abstract: BACKGROUND
  Oral testosterone was found to reduce plasma levels of HDL cholesterol. No previous study has examined the effect of fibrates, known to increase HDL cholesterol, in patients with low testosterone levels requiring testosterone replacement.
  
  
  OBJECTIVE
  The study included three age-, weight-, and lipid-matched groups of older men with atherogenic dyslipidemia and late-onset hypogonadism, treated with oral testosterone undecanoate (120 mg daily, n = 15), micronized fenofibrate (200 mg daily, n = 15), or testosterone plus fenofibrate (n = 18). Plasma lipids, glucose homeostasis markers, as well as plasma levels of androgens, uric acid, high-sensitivity C-reactive protein (hsCRP), homocysteine, and fibrinogen were assessed before and after 16 weeks of therapy.
  
  
  RESULTS
  Apart from an increase in plasma testosterone and a reduction in HDL cholesterol, testosterone undecanoate tended to decrease hsCRP and to improve insulin sensitivity. Fenofibrate administered alone increased HDL cholesterol, reduced triglycerides, decreased insulin resistance, reduced circulating levels of uric acid, hsCRP, and fibrinogen, as well as increased plasma levels of homocysteine. The strongest effect on testosterone, HOMA1-IR, uric acid, hsCRP, and fibrinogen was observed if fenofibrate was administered together with testosterone. Testosterone-fenofibrate combination therapy was also devoid of unfavorable effect on HDL cholesterol and homocysteine.
  
  
  CONCLUSIONS
  Our study shows that fenofibrate produces a stronger effect on cardiometabolic risk factors in men with late-onset hypogonadism and atherogenic dyslipidemia than oral testosterone undecanoate. The obtained results suggest that this group of patients may benefit the most from the combined treatment with oral testosterone undecanoate and micronized fenofibrate.
authors.affiliation: Department of Internal Medicine and Clinical Pharmacology, Medical University of Silesia, Katowice, Poland.
authors.forename: Robert
authors.initials: R
authors.lastname: Krysiak
authors.affiliation: Department of Internal Medicine and Clinical Pharmacology, Medical University of Silesia, Katowice, Poland.|Cardiology Department, Chrzanow District Hospital, Chrzanow, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Gilowski
authors.affiliation: Department of Internal Medicine and Clinical Pharmacology, Medical University of Silesia, Katowice, Poland.
authors.forename: Bogusław
authors.initials: B
authors.lastname: Okopien
mesh_terms: D000368:Aged; D015415:Biomarkers; D001786:Blood Glucose; D002318:Cardiovascular Diseases / Q000378:metabolism*; D008076:Cholesterol, HDL / Q000378:metabolism*; D050171:Dyslipidemias / Q000188:drug therapy; D011345:Fenofibrate / Q000494:pharmacology* / Q000627:therapeutic use; D006801:Humans; D007006:Hypogonadism / Q000188:drug therapy; D000960:Hypolipidemic Agents / Q000494:pharmacology* / Q000627:therapeutic use; D008055:Lipids / Q000097:blood; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012307:Risk Factors; D013739:Testosterone / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D015415:Biomarkers; D001786:Blood Glucose; D008076:Cholesterol, HDL; D000960:Hypolipidemic Agents; D008055:Lipids; D013739:Testosterone; C010792:testosterone undecanoate; D011345:Fenofibrate
keywords: Androgens; Atherogenic dyslipidemia; Fibrates; Hypogonadism; Insulin resistance; Testosterone replacement