Pneumocystis Jiroveci Pneumonia

The HOW LONG trial is an international, multicenter, Phase IV randomized clinical trial evaluating the optimal duration of adjunctive systemic corticosteroids in immunocompromised adults with severe Pneumocystis jirovecii pneumonia (PCP) who demonstrate early clinical recovery. Participants who no longer require supplemental oxygen by day 10 of corticosteroid therapy are randomized to discontinue corticosteroids at day 10 (or hospital discharge, if earlier) versus continue corticosteroids for a total of 21 days. The trial assesses whether earlier discontinuation reduces steroid-related complications while maintaining clinical outcomes.

Pneumocystis jirovecii pneumonia (PJP) is one of the common severe complications in immunocompromised patients, with a reported mortality rate of 60-80%. Reducing mortality from PJP is crucial for improving outcomes in critically ill non-HIV immunocompromised patients and alleviating the burden on families and society. To address this medical challenge, our institution is conducting a study aimed at lowering PJP-related mortality. Specifically, we are performing an adaptive, randomized, open-label controlled trial in patients with severe PJP. The primary objective of this study is to scientifically evaluate the efficacy and safety of adjunctive corticosteroids at different dosages, in addition to early standard supportive care, for reducing mortality in severe PJP