În studiu au fost implicaţi 30 de bărbaţi sănătoşi, acestora administrându-se o doză sau două din 11-beta-MTNDC, în timp ce 10 participanţi au primit medicamentele cu efect placebo, timp de 28 de zile. Pastila contraceptivă, care încă se află în faza experimentală, este numită 11-beta-methyl-19-nortestosterone dodecylcarbonate, sau mai pe scurt, 11-beta-MNTDC. În componenţa sa, se află testosteron modificat care îşi combină activitatea cu hormoni masculini, precum androgen, dar şi progesteron, potrivit BBC, citat de mediafax.
Medicul Christina Wang, de la institutul de cercetare din Los Angeles (LA BioMed) al centrului medical din cadrul Universităţii UCLA, spune printr-un comunicat că „rezultatele sugerează că pastila, care combină două activităţi hormonale, va reduce producţia de spermă, dar în acelaşi timp va păstra libido-ul”.
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