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Beginning in 2011, a contraceptive product based on RISUG, Vasalgel, was under development in the US by the Parsemus Foundation, who were unable to bring the product to market over the next decade. [3] In 2023, the patent for Vasalgel was acquired by NEXT Life Sciences, which plans to bring the technology to market under the name Plan A for Men ...
Founded in 2005, Parsemus is an advocate of research into the plausibility of RISUG (and a method based on RISUG, called Vasalgel), a reversible male contraceptive. [2] [3] The foundation began procuring RISUG's United States intellectual property rights in November 2010, completed the acquisition process in February 2012, and is for the past 8 years conducting toxicology tests as an initial ...
Vasalgel was successful in achieving azoospermia in rabbits within 36 days of injection, as well as returned vas deferens patency. [9] In 2023, the patent for Vasalgel was acquired by NEXT Life Sciences , Inc., which plans to bring the technology to market under the name Plan A for Men .
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Male contraceptives, also known as male birth control, are methods of preventing pregnancy by interrupting the function of sperm. [1] The main forms of male contraception available today are condoms, vasectomy, and withdrawal, which together represented 20% of global contraceptive use in 2019.
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Gossypol (/ ˈ ɡ ɒ s ə p ɒ l /) is a natural phenol derived from the cotton plant (genus Gossypium).Gossypol is a phenolic aldehyde that permeates cells and acts as an inhibitor for several dehydrogenase enzymes.
In 1998, Allendale Pharmaceuticals acquired the rights to the Today sponge and it was once again available. [14] New FDA standards for manufacturing and record-keeping forced repeated delays, but the Today sponge was finally re-introduced in Canada in March 2003, and in the U.S. in September 2005.