# External Validation of the CHOD Risk Scale

> **NCT04889261** · — · UNKNOWN · sponsor: **Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau** · enrollment: 245 (estimated)

## Conditions studied

- COVID-19 Pneumonia
- Pulmonary Embolism

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04889261
- **Lead sponsor:** Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-05-17
- **Primary completion:** 2021-11-30
- **Final completion:** 2021-12-31
- **Target enrollment:** 245 (ESTIMATED)
- **Last updated:** 2021-05-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04889261

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04889261, "External Validation of the CHOD Risk Scale". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04889261. Licensed CC0.

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