Cempra, Inc. (CEMP) enrolled patients in SOLITAIRE-Oral, a phase 3 trial of lead antibiotic solithromycin, slightly faster than expected, announcing completion on Thursday that puts a top-line readout in community-acquired bacterial pneumonia (CABP) early next year. CEMP rallied 10% through morning trade given prior guidance for enrollment completion in the fourth quarter.
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The phase 3 study is a double-blind, placebo-controlled trial that randomized 860 patients with PORT-II, PORT-III, or PORT-IV CABP to either oral solithromycin (800mg followed by 400mg once daily for 5 days) or seven days of once-daily moxifloxacin at 400mg. The primary endpoint in the trial is non-inferiority of early response at 72 hours. A second phase 3 study of solithromycin (SOLITAIRE-IV), testing an IV formulation stepped down to oral, is underway. Additionally, a phase 3 trial in uncomplicated gonorrhea (SOLITAIRE-U) began in August.
Yet this year, Cempra expects to initiate a NAIAD-funded urogenital solithromycin pharmacokinetics study and initiate dosing in an investigator-sponsored phase 2 study in COPD
Early this month, Cempra also announced the receipt of a $10 million milestone payment from Toyama Chemical Co., a subsidiary of FUJIFILM, triggered by Toyama’s progress with its solithromycin clinical development program in Japan. Cempra is entitled to an additional $50M over the course of the solithromycin development/regulatory program in Japan.
One or more of PropThink’s contributors are long CEMP.