Hypogonadotropic Hypogonadism in Obese Young Males

  • End date
    Dec 30, 2026
  • participants needed
  • sponsor
    Sandeep Singh Dhindsa, M.D., F.A.C.E
Updated on 4 March 2022
testosterone level
klinefelter syndrome
secondary hypogonadism
Accepts healthy volunteers


Obesity can lead to low testosterone concentrations in young men. This study will study the effects of low testosterone in those men and the result of treating them with clomiphene.


The prevalence of obesity has increased in children over the past few decades. Approximately 20% of adolescent boys are now considered obese. It is well accepted that obese children are at increased risk for high blood pressure, lipid abnormalities and type 2 diabetes. Recent studies have uncovered yet another undesirable effect of obesity. The testosterone levels of obese boys are only half those of lean boys at completion of puberty. Testosterone is important for muscle and bone development. Men with low testosterone are at higher risk of insulin resistance and inflammation, which lead to type 2 diabetes and heart disease. Since testosterone is the major reproductive hormone, these obese boys are at risk of decreased fertility. Men are supposed to achieve their peak testosterone levels at puberty. Thereafter, there is a decline in testosterone levels at the rate of 2% per year for the rest of life. Thus there is a clear need to develop a deeper understanding of low testosterone in these males who are entering their peak fertility years. There are no approved treatments for this disorder. The investigators propose to conduct a randomized placebo controlled trial to evaluate the effect of treatment with clomiphene in obese young men(age 18-30 years) who have low testosterone concentrations. Clomiphene is a drug that increases testosterone concentrations and possibly increases sperm production. In contrast, testosterone replacement therapy decreased fertility and cannot be used in young men. Investigators will study the effect of treatment with clomiphene or placebo tablets for 12 weeks in 30 subjects. The study will evaluate:-

  1. testicular function: Testosterone and two proteins secreted by testis(insulin like factor 3 and inhibin B) will be measured in the blood before and after treatment with clomiphene or placebo.
  2. insulin resistance: Investigators will measure insulin and glucose levels in the blood.
  3. inflammation: Investigators will measure proteins that induce inflammation.

Condition Hypogonadism, Hypogonadotropic
Treatment Placebo, Clomiphene
Clinical Study IdentifierNCT03245827
SponsorSandeep Singh Dhindsa, M.D., F.A.C.E
Last Modified on4 March 2022


Yes No Not Sure

Inclusion Criteria

Age 18-30 years inclusive will be recruited
A total of 90 males will be recruited:-
obese males (defined as BMI 30 kg/m2) with HH
obese males with normal FT concentrations and
lean males (defined as BMI <25 kg/m2) with normal FT concentrations

Exclusion Criteria

Use of androgens, clomiphene, hCG, aromatase inhibitors or over the counter health supplements which contain androgens currently or in the past 6 months
Hematocrit > 50%
Congestive heart failure
currently suffering from depression
type 1 diabetes
Hepatic disease (transaminase > 3 times normal) or cirrhosis
Renal impairment (eGFR<30 ml/min/1.73m2)
HIV or Hepatitis C positive status
Participation in any other concurrent clinical trial
currently suffering from foot ulcer, significant periodontal disease or any other chronic infectious condition
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