Gonadotropin Releasing Hormone Agonist (Nafarelin) Test to Differentiate Gonadotropin Deficiency from Constitutionally Delayed Puberty in Teenage Boys: A Clinical Research Center Study

October 1995 in “ The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism ”

Kanika Ghai, José Cara, Robert L. Rosenfield

gonadotropin releasing hormone agonist nafarelin gonadotropin deficiency constitutionally delayed puberty LH response GnRH agonist GnRH agonist

TLDR The nafarelin test can reliably distinguish between gonadotropin deficiency and delayed puberty in teenage boys.

The study evaluated the effectiveness of the GnRH agonist nafarelin in differentiating between gonadotropin deficiency (GnD) and constitutionally delayed puberty (CDP) in 34 teenage boys. It found that an LH response 4 hours post-administration could distinguish CDP from GnD in 95% of cases, with an incremental LH response below 4.8 IU/L being the best indicator. The nafarelin test was as effective as the sleep test, offering a reliable diagnostic tool for clinicians.

View this study on academic.oup.com →

Discuss this study in the Community →

Related Community Posts Join

6 / 9 results

community 35 MtF | 16 Months | Minoxidil + Dutasteride + Microneedling + Exosomes. Note that since I'm early in my transition (and I was coming from a bald state), I still have short hair. Very few MtF progress pictures here, I figure this might help some of you.

in Transgender 125 upvotes 11 months ago

A 35-year-old transitioning female (MtF) shared her hair regrowth journey using Minoxidil, Dutasteride, Microneedling, and Exosomes, starting from a bald state. Commenters discussed the impressive results, skin care routine, and the effects of estrogen on hair and skin.

community My Testosterone is less than 1/3rd In 7 Months since I took Finasteride!

in Finasteride/Dutasteride 113 upvotes 1 year ago

A user experienced a significant drop in testosterone levels after taking finasteride, leading to side effects like low libido and muscle mass loss. Despite its effectiveness for hair, the user decided to stop finasteride due to its impact on hormones, preferring to be bald.

community Started Finasteride almost three months ago and I'm upset

in Update 153 upvotes 8 months ago

A user started taking finasteride three months ago to treat hair loss and unexpectedly cleared their acne, which they had been struggling with since age 12. The conversation includes others sharing their experiences with finasteride, its effects on acne and hair loss, and mentions a related treatment, clascoterone, for acne and hair loss.

community Testosterone is 1600, would taking low dose anti-androgens be a viable treatment option for people who’s T spikes on DHT-blockers?

in Treatment 46 upvotes 1 year ago

The post and conversation are about the user's high testosterone levels and their worsening hair loss despite trying various treatments. They are considering using low doses of anti-androgens to lower their testosterone levels as a potential solution.

community Completely defeated after trying so hard with topical finasteride.

in Finasteride/Dutasteride 24 upvotes 1 year ago

A user who has tried multiple treatments for hair loss, including oral and topical finasteride and liposomal finasteride, but experienced severe side effects in each case; the user is considering trying RU58841 or aromatise inhibitors as alternatives.

community Be careful when switching from Finasteride to Dutasteride because for more efficacy.

in Finasteride/Dutasteride 13 upvotes 1 month ago

Switching from finasteride to dutasteride may be more effective for hair regrowth due to dutasteride's stronger enzyme inhibition, but combining both drugs could enhance results. Some users report better outcomes with dutasteride, while others recommend a gradual transition to prevent potential hair loss.

Related Research

1 / 1 results

Gonadotropin Releasing Hormone Agonist (Nafarelin) Test to Differentiate Gonadotropin Deficiency from Constitutionally Delayed Puberty in Teenage Boys: A Clinical Research Center Study

research Gonadotropin Releasing Hormone Agonist (Nafarelin) Test to Differentiate Gonadotropin Deficiency from Constitutionally Delayed Puberty in Teenage Boys: A Clinical Research Center Study

24 citations, October 1995 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism”

The nafarelin test can reliably distinguish between gonadotropin deficiency and delayed puberty in teenage boys.