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‹ Mon · 28 Sep 2026
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Respiratory Viral Infections Following CAR-T Cell Therapy for Lymphoma and Myeloma: Severity and Immune Correlates.

Identifying low immune cell counts after CAR-T therapy could help clinicians predict and prevent serious respiratory infections in cancer patients.

BACKGROUND: Infectious complications are a major cause of morbidity and non-relapse mortality after CAR-T cell therapy. Impaired immune reconstitution, particularly lymphopenia, is associated with increased risk, with an ALC <0.5 × 10⁹/L emerging as a clinically relevant threshold.

What the study was

Study design
Retrospective cohort study
Population
Commercial CAR-T recipients for lymphoma and myeloma (n=563, 2018-2024)
Sample size
563
Category
Treatment Innovation
Maturity
Validated
Journal
International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

Why it surfaced

Large retrospective characterization of respiratory viral infections in CAR-T recipients provides clinically actionable data on infectious morbidity and immune reconstitution patterns.

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