February 3, 2023
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Sienna Biopharmaceuticals cuts expenses, net losses


Westlake Village-based Sienna Biopharmaceuticals reported a nearly 15 percent drop in its operating expenses for the quarter ended March 31, as it decreased research and development spending to move products through clinical trials. The pre-revenue company, which develops dermatological therapies, marked the quarter with an “End-of-Phase 2 meeting” with the U.S. Food and Drug Administration…


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