MDVN has since filed a lawsuit against UCLA over this.
From the Pink Sheet article
Biobetter from investorsvillage sums it up well
"MDVN's lawsuit is not about ownership of MDV3100 but is about ownership of ARN509. Both drugs were derived from the same drug screen, both discovered by the same UCLA chemist and ARN509 structurally resembles MDV3100. MDVN and UCLA came to an agreement that gave MDVN the rights to a few hundred chemical structures and MDVN thinks ARN509 is one of them. So far ARN509 has not been able to sign up a Big Pharma partner which may indicate there is some merit to MDVN's lawsuit."
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