Key Points
- RTX is a non-opioid drug that treats knee pain suffered by osteoarthritis patients.
- Sorrento has a shelf full of COVID-19 diagnostics and treatments that haven’t been cleared for a new phase of testing.
- The company is yet to bring one of those COVID-19 products to the U.S. market.
So what
Tuesday afternoon, Sorrento announced that the U.S. Food and Drug Administration (FDA) cleared its Resiniferatoxin (RTX), a non-opioid medication aimed at treating knee pain arising from osteoarthritis, for a Phase 2 clinical trial. The clinical-stage biotech said in a press release that the Phase 2 study will be aimed at determining the recommended dose for its Phase 3 trial. Both the Phase 2 and Phase 3 testing is to be effected with bigger patient populations, which is typical in later-stage trials.
The RTX news is welcome, if not exactly surprising given that the drug performed well in earlier-stage trials. Sorrento wrote that those studies “confirm the clinical potential of the RTX drug for long-term control of pain associated with osteoarthritis of the knee.”
Now what
The subsequent stock-price drop following the announcement was more puzzling. Sorrento has lately risen to prominence on its lineup of COVID-19 product candidates, a long list that includes both diagnostics and drugs.
So perhaps the latest development with RTX is serving as an uncomfortable reminder that the company has yet to bring one of those goods to the U.S. market — which hasn’t yet fully escaped the threat of the disease.