# Retrospective Study of Immunotherapy Related Toxicities and Factors Impacting Outcomes in Children and Adults With Cancer

> **NCT03827343** · — · ACTIVE_NOT_RECRUITING · sponsor: **National Cancer Institute (NCI)** · enrollment: 500 (actual)

## Conditions studied

- Macrophage Activation Syndrome
- Primary Hemophagocytic Lymphohistiocytosis

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT03827343
- **Lead sponsor:** National Cancer Institute (NCI)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2019-01-23
- **Primary completion:** 2026-12-31
- **Final completion:** 2026-12-31
- **Target enrollment:** 500 (ACTUAL)
- **Last updated:** 2026-05-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03827343

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03827343, "Retrospective Study of Immunotherapy Related Toxicities and Factors Impacting Outcomes in Children and Adults With Cancer". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT03827343. Licensed CC0.

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