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It is applied on the shoulders, back and some of the arms as it's a cream and it is absorbed by the skin . Its effect is to reduce sperm production, but without inhibiting desire or badual pleasure. These are the benefits of a gel studied by the National Institutes of Health of the United States. and it promises to be a revolutionary product: the first male contraceptive on the market
For this innovative trial, 420 couples will participate and will be performed by scientists from the University School of Medicine from Washington to Seattle. In this second phase (clinical study) centers from will participate in seven countries, including Chile .
The study in the country is supervised by Chilean Institute of Reproductive Medicine (Icmer) ] which should recruit up to 60 couples. For the moment, they interview the first ones who have shown interest in participating. If they confirm their desire to participate in the study, they will be subject to clinical and medical tests to see if they can be part of the final 420 couples that will constitute the final tests at the global level.
Magical Formula
The Population Council, a non-profit organization focused on the treatment of critical health and development issues, was developed by National Institute of Health children and human development of the United States . which guarantees the regulation of fertility.
The gel, called NES / T acts with a progestin, which blocks the natural production of testosterone in the testes, reducing the production of sperm at low levels or nonexistent But in addition, the gel administers testosterone, which maintains the normal badual drive and other bodily functions depending on the appropriate level of the hormone in the blood.
In the development of the study, men will apply the gel daily for four to twelve weeks to determine whether there are unacceptable adverse effects . If sperm levels have not decreased properly during these 12 weeks, participants will continue to use the product for up to 16 weeks.
Once their sperm levels have dropped enough for the gel to be considered a contraceptive, they come in contact with the product. a test of 52 weeks. Couples will only be allowed to use the gel as a contraceptive.
According to researcher Gabriela Noé at Icmer, it was determined in previous tests that the gel was able to suppress sperm production; this suppression is sufficient to produce temporary infertility and therefore not to produce pregnancy. "Each center has to recruit between 30 and 60 couples for the study.We already have couples interested and we are at the interview stage, explaining what it is. There are has a lot of interest especially in young couples of 20-30 years .If, with all the information, the couples decide to participate, then the stage of the medical examinations, the conditions of inclusion, There are no exclusion criteria to register, "says Noah.
As the process of spermatogenesis (the cycle of production) of sperm) takes about two months in men, once they begin to apply the gel, the couple must use for three months another contraceptive method until it is confirmed, by means of a spermiogram, that man does not produce sperm or that his quantity is so small that he can not put the woman pregnant. "Previous studies have shown that, like any other pill contraceptive method, injections have a very low risk of pregnancy.The couples who participate know and accept this risk," says the researcher.
Once the trials are completed, the researchers hope to monitor the men for an additional 24 weeks after stopping the freeze .All participating men will be followed once a month and women every three months.All of the study is Planned over a period of four years
"What is really innovative here is that other studies on male hormonal contraceptives have been performed, but that it 's only the same. is the first self-administered method "said Dr. Stephanie Page, professor of medicine at the faculty of medicine at the University of Washington, quoted by US media
" This gel would be the p the first method of contraception controlled by the user for men since the appearance of the condom, "she said. Diana Blithe, head of the contraceptive development program at the National Institute of Child Health and Human Development. "We hope couples want to use an acceptable method of contraception."
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