Collegium Pharmaceutical's shares dropped 17.5% following the earnings release, driven primarily by weakness in the NUCYNTA pain franchise due to pricing pressure from authorized generics and cautious outlook on sustaining pain portfolio revenue. Despite growth in the ADHD franchise, overall expectations for pain segment durability appear to have weighed heavily on investor sentiment.
Collegium Pharmaceutical’s stock rose 3.5% after the quarter, driven by stronger-than-expected growth in JORNAY prescriptions and accelerated revenue from the ADHD portfolio, supported by the imminent AZSTARYS acquisition.