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Clinical characteristics and management of immune checkpoint inhibitor-related pneumonitis: A single-institution retrospective study.


ABSTRACT:

Introduction

The increasing application of immune checkpoint inhibitors (ICIs) will cause more checkpoint inhibitor-related pneumonitis (CIP), which is a common cause of ICI-related death. The clinical management of CIP needs further optimization.

Methods

Patients who were managed at Peking Union Medical College Hospital (PUMCH) between February 2017 and December 2019 with a diagnosis of CIP were retrospectively analyzed. Clinical data including clinical manifestations, radiologic data, laboratory and bronchoscopy results, treatments, and outcomes were collected and analyzed. The Mann-Whitney test was used to compare patients with and without co-infections.

Results

In total, 48 CIP cases in 42 patients were analyzed. The median time from the first dose of ICI to the onset of CIP was 1.9 months (range: 0.1-13.7). Grade 3-4 (G3-4) accounted for 30 cases (71.4%). The most common symptoms were cough (88.1%) and dyspnea (78.6%). The median starting dose of equivalent prednisone (EP) was 55 mg (range: 30-200) for all patients. The median total duration of glucocorticosteroids (GCS) treatment was 42.5 days (range: 15-89). Three patients (7.14%) died because of infection. A higher starting dose and longer duration of GCS (?30 mg/day; p = 0.001) were associated with opportunistic infection. Chest computed tomography (CT) showed diverse and asymmetrical lesions. Twelve patients were re-challenged, and six patients developed recurrent CIP.

Conclusions

The clinical and imaging manifestations of CIP are various, and differential diagnosis of exclusion is essential. GCS at 1-2 mg/kg is feasible to treat CIP, but the duration of GCS ?30 mg/day should be used with caution, given the high risk of acquired infections. Re-challenges of ICI are feasible, but the recurrence of CIP needs to be closely monitored.

SUBMITTER: Wang H 

PROVIDER: S-EPMC7826478 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Clinical characteristics and management of immune checkpoint inhibitor-related pneumonitis: A single-institution retrospective study.

Wang Hanping H   Zhao Yanwei Y   Zhang Xiaotong X   Si Xiaoyan X   Song Peng P   Xiao Yi Y   Yang Xu X   Song Lan L   Shi Juhong J   Zhao Haitao H   Zhang Li L  

Cancer medicine 20201119 1


<h4>Introduction</h4>The increasing application of immune checkpoint inhibitors (ICIs) will cause more checkpoint inhibitor-related pneumonitis (CIP), which is a common cause of ICI-related death. The clinical management of CIP needs further optimization.<h4>Methods</h4>Patients who were managed at Peking Union Medical College Hospital (PUMCH) between February 2017 and December 2019 with a diagnosis of CIP were retrospectively analyzed. Clinical data including clinical manifestations, radiologic  ...[more]

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