Word: maleness
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Indeed, many men say they are open to trying new forms of birth control. In a 2005 global survey conducted by Schering of 9,000 men ages 18 to 50, 55% expressed an interest in a "new male fertility control," and roughly 40% of the American respondents who said they would be interested in new male contraceptives further said they would be willing to use an implant or receive regular injections to control their fertility...
...even a small percentage of sexually active men agreed to try a new method of birth control, that would amount to a colossal number of potential consumers. That's why Thompson doesn't believe the drug industry's hesitance to develop male hormonal birth control is merely about money. "The biggest hurdle that I've encountered in trying to share this information is a sort of knee-jerk reaction that men aren't interested in these kinds of contraceptives and that women won't trust them to take them," she says. "Neither of those assertions are supported by the data...
...shown to be 100% effective in clinical trials. But studies have also shown that 10% to 15% of men don't respond to hormonal treatments at all - a fairly high nonresponder rate. Researchers don't yet know how to explain those failures. One inherent stumbling block is that a male contraceptive must block millions of sperm, as opposed to a single egg. (The Pill had it easy.) Another is race: according to several proof-of-concept studies, Asian men maintained a suppressed sperm count with greater frequency than Caucasians, but researchers still don't know...
...lack of definitive results is a major problem, says Dr. John Amory, who has spearheaded much of the male contraceptive research at the University of Washington. He says the science needs to progress before researchers can blame Big Pharma for dragging its heels. Amory's most recent treatment, a daily testosterone gel combined with a quarterly injection, showed a 90% success rate in trials, but, he says, "if we had a compound that was 99% effective, then the drug companies would be on board, the FDA [Food and Drug Administration] would be on board, and consumers would embrace...
...however, male hormonal contraceptives perpetually remain five to 10 years away. And Durwin Foster wasn't willing to wait. He got a vasectomy in January. It was the only option he had left...