BPD: Latest Strategies of Prevention and Treatment

Abstract

<b><i>Background:</i></b> Bronchopulmonary dysplasia (BPD) is the most common long-term complication of extreme preterm birth. It is associated with lifelong multisystemic consequences. Advances in neonatal care have not reduced the incidence of BPD and no new breakthrough therapy has been successfully translated into the clinic in recent decades. <b><i>Summary:</i></b> Current evidence demonstrates benefit of new modalities of first-line noninvasive positive pressure ventilation, selected strategies of postnatal corticosteroid administration, alternative surfactant delivery methods, and caffeine. Promising emerging therapies that are being translated from bench to bedside include mesenchymal stromal cells (MSCs), insulin-like growth factor 1/binding protein-3 (IGF-1/IGFBP-3), and interleukin 1 receptor (IL-1R) antagonist (anakinra). Strong preclinical data support efficacy of MSCs in attenuating neonatal lung injury. Early-phase clinical trials have already demonstrated safety and feasibility in preterm infants. Phase II studies that aimed at demonstrating efficacy are currently underway. Both IGF-1/IGFBP-3 and IL-1R antagonist present with biological plausibility and animal data of efficacy. Phase I/II clinical trials are currently recruiting patients. <b><i>Key Messages:</i></b> Early noninvasive respiratory support, late systemic dexamethasone, less invasive surfactant administration, and caffeine are proven strategies in reducing the risk of BPD. Potentially disruptive therapies – MSCs, IGF-1/IGFBP-3, and anakinra – are being advanced to clinical trials and their efficacy in remains to be demonstrated. Continued research efforts are needed in the growing population of extremely preterm infants at risk of developing BPD.