MENT Implant

Alternative Name: MENT Acetate Implant, 7α-methyl-19-nortestosterone

Description: MENT is a synthetic androgen that binds with greater binding affinity than testosterone and dihydrotestosterone, the two active endogenous androgens. This higher bioactivity allows a reduced dose compared to testosterone for daily use.

Product Details

Duration: One year

Regimen:

Dose: 1200-1600 µg (per day)

Active Pharmaceutical Ingredient (API):

Inactive material: elastomer; EVA

Status Details

Began discovery in: 1990

Status Details:
  • Four MENT Ac implants were not totally efficacious in men. MENT Ac implants in combination with DMPA injections are being investigated for synergy in efficacy to induce azoospermia.

Additional Information

References:
  • Population Council website: http://www.popcouncil.org/research/ment-subdermal-implants-for-men

  • Kumar N, Crozat A, Li F, Catterall JF, Bardin CW, Sundaram K. 7alpha-methyl-19-nortestosterone, a synthetic androgen with high potency: structure-activity comparisons with other androgens. J Steroid Biochem Mol Biol. 1999 Dec 31;71(5-6):213-22. doi: 10.1016/s0960-0760(99)00143-0.

  • von Eckardstein S, Noe G, Brache V, Nieschlag E, Croxatto H, Alvarez F, Moo-Young A, Sivin I, Kumar N, Small M, Sundaram K. A clinical trial of 7 alpha-methyl-19-nortestosterone implants for possible use as a long-acting contraceptive for men. J Clin Endocrinol Metab. 2003 Nov;88(11):5232-9. doi: 10.1210/jc.2002-022043.

Footnotes:
  • See also entry on MENT Gel.

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