If you've been following Vasalgel updates, you heard last November that Vasalgel worked and was safe in rhesus monkeys, and that the results were submitted for publication. Now it's official! After 16 male monkeys received Vasalgel,
none of them caused pregnancies
during the year-plus period of a study at the California National Primate Research Center, according to a report just published in Basic and Clinical Andrology (
see the report here
The study sought to bring Vasalgel
one step closer to human use by testing it in animals that are anatomically similar to humans. It followed and exceeded the more humane European standards for animal research in accordance with Parsemus Foundation policy. As part of humane housing, the males lived in social groups including three to nine females -- plenty of chance for pregnancies!
The study's success indicates that in addition to benefiting humankind, Vasalgel may become a useful tool for those who care for primates in zoos and breeding programs.
"Vasectomy is a quick and relatively simple procedure in humans, but in monkeys there can be additional complications, as it is inherently more complex," Dr. Angela Colagross-Schouten, lead veterinarian on the project, said. "We were impressed that this alternative worked in every single monkey, even though this was our first time trying it."