# Study in Adult and Pediatric Patients With HSCT-TMA

> **NCT04970004** · — · WITHDRAWN · sponsor: **Alexion Pharmaceuticals, Inc.**

## Conditions studied

- Stem Cell Transplant Complications
- Thrombotic Microangiopathies

## Interventions

- **OTHER:** No intervention

## Key facts

- **NCT ID:** NCT04970004
- **Lead sponsor:** Alexion Pharmaceuticals, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** WITHDRAWN
- **Start date:** 2021-07-12
- **Primary completion:** 2022-04-01
- **Final completion:** 2022-04-01
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Sponsor decision to not proceed.
- **Last updated:** 2022-05-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04970004

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04970004, "Study in Adult and Pediatric Patients With HSCT-TMA". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04970004. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*