CAMBRIDGE, Mass., May 13, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO), a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases with high unmet need, today announced financial results for the first quarter ended March 31, 2026, and provided a business update. "We continue to make solid progress on the tebipenem HBr program alongside our licensing partner, GSK, as we prepare for the FDA's decision expected in June," ...