# Prevalence and Seroconversion of COVID-19 in Autoimmune Diseases in Europe

> **NCT04397237** · — · UNKNOWN · sponsor: **Pitié-Salpêtrière Hospital** · enrollment: 3100 (actual)

## Conditions studied

- COVID-19
- Systemic Lupus Erythematosus
- Sjogren's Syndrome
- Axial Spondyloarthritis
- Rheumatoid Arthritis
- Giant Cell Arteritis

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04397237
- **Lead sponsor:** Pitié-Salpêtrière Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2020-06-10
- **Primary completion:** 2020-12-08
- **Final completion:** 2021-01
- **Target enrollment:** 3100 (ACTUAL)
- **Last updated:** 2020-12-21

## Collaborators

- [object Object]
- [object Object]
- [object Object]
- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04397237

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04397237, "Prevalence and Seroconversion of COVID-19 in Autoimmune Diseases in Europe". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04397237. Licensed CC0.

---

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