On August 26, Biohaven (NYSE:BHVN) and SK Biopharmaceuticals announced a global licensing agreement covering opakalim, Biohaven's lead epilepsy candidate, in a deal worth up to $795 million plus royalties. SK Biopharmaceuticals picks up exclusive worldwide rights to Biohaven's Kv7 ion channel platform, while Biohaven walks away with $400 million in near-term cash. The timing lines up with an August 10, 2026 earnings report that showed Biohaven still losing well over $100 million a quarter, and the gap between those two dates explains a lot about why this deal happened now.
SK Biopharmaceuticals will pay up to $795 million in upfront and milestone payments connected to the Kv7 platform, on top of tiered royalties on US net sales of opakalim that range from the mid-teens to low twenties. Biohaven collects $350 million at closing and another $50 million in 2027, with as much as $150 million more available through development and regulatory milestones plus royalties on global sales. SK Biopharmaceuticals is also taking over Kv7 program costs going forward, including certain Knopp Biosciences obligations. CEO Vlad Coric described the structure as proof Biohaven can monetize its pipeline through partnerships rather than leaning on public markets for cash.
The deal only makes sense because opakalim looks like it works. In a proof-of-concept study in idiopathic generalized epilepsy, the median time to a second generalized tonic-clonic seizure stretched to 141 days on opakalim versus 47 days on placebo, and a third of patients made it through the full 24 weeks without a second seizure. In focal epilepsy, 54% of patients in an open-label extension study saw at least a 50% drop in seizure frequency over any six months, in a group of more than 100 patients.
Opakalim is also designed as a once-daily pill with no ******* ration required, a real edge over older antiseizure drugs. Pairing that data with SK Biopharmaceuticals, the company behind XCOPRI and the only firm to bring a new focal-seizure drug to the US market since 2016, gives Opakalim a commercial path Biohaven would have struggled to build alone. The cash also buys runway for the rest of the pipeline, including protein degraders BHV-1300 and BHV-1400, which have shown rapid, selective reductions in disease-driving antibodies in Graves' disease and IgA nephropathy with clean safety data across nearly 200 patients dosed.
Biohaven is giving up full ownership of an ******* et it now believes could be a major seller. Royalties in the mid-teens to low twenties are real money, but they are a fraction of what outright ownership of an approved epilepsy drug would be worth, and $50 million of the $400 million upfront does not arrive until 2027. The Knopp Biosciences obligations SK Biopharmaceuticals is absorbing, worth up to $245 million plus mid-single-digit royalties, are a reminder that other parties already have claims on opakalim's future revenue before Biohaven sees a dollar of profit from it.
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SK Biopharmaceuticals will pay up to $795 million in upfront and milestone payments connected to the Kv7 platform, on top of tiered royalties on US net sales of opakalim that range from the mid-teens to low twenties. Biohaven collects $350 million at closing and another $50 million in 2027, with as much as $150 million more available through development and regulatory milestones plus royalties on global sales. SK Biopharmaceuticals is also taking over Kv7 program costs going forward, including certain Knopp Biosciences obligations. CEO Vlad Coric described the structure as proof Biohaven can monetize its pipeline through partnerships rather than leaning on public markets for cash.
The deal only makes sense because opakalim looks like it works. In a proof-of-concept study in idiopathic generalized epilepsy, the median time to a second generalized tonic-clonic seizure stretched to 141 days on opakalim versus 47 days on placebo, and a third of patients made it through the full 24 weeks without a second seizure. In focal epilepsy, 54% of patients in an open-label extension study saw at least a 50% drop in seizure frequency over any six months, in a group of more than 100 patients.
Opakalim is also designed as a once-daily pill with no ******* ration required, a real edge over older antiseizure drugs. Pairing that data with SK Biopharmaceuticals, the company behind XCOPRI and the only firm to bring a new focal-seizure drug to the US market since 2016, gives Opakalim a commercial path Biohaven would have struggled to build alone. The cash also buys runway for the rest of the pipeline, including protein degraders BHV-1300 and BHV-1400, which have shown rapid, selective reductions in disease-driving antibodies in Graves' disease and IgA nephropathy with clean safety data across nearly 200 patients dosed.
Biohaven is giving up full ownership of an ******* et it now believes could be a major seller. Royalties in the mid-teens to low twenties are real money, but they are a fraction of what outright ownership of an approved epilepsy drug would be worth, and $50 million of the $400 million upfront does not arrive until 2027. The Knopp Biosciences obligations SK Biopharmaceuticals is absorbing, worth up to $245 million plus mid-single-digit royalties, are a reminder that other parties already have claims on opakalim's future revenue before Biohaven sees a dollar of profit from it.
#ro
1 day ago
