CARY, N.C., May 17, 2024 /PRNewswire/ -- Oak Hill Bio, a clinical-stage neonatology and rare disease therapeutics company, and Chiesi, an international, research-focused biopharmaceutical group (Chiesi Group), announced that the first patient has been enrolled in a resumed Phase 2b clinical study to assess the efficacy and safety of OHB-607, an investigational drug candidate being developed to treat complications of extremely premature birth, including bronchopulmonary dysplasia (BPD), a serious condition for which there are no approved therapies.