# Study of the Humoral Response to SARS-CoV-2 Variants and of the Cellular Response After Vaccination Against COVID-19 in Immunocompromised People

> **NCT04844489** · NA · COMPLETED · sponsor: **Assistance Publique - Hôpitaux de Paris** · enrollment: 377 (actual)

## Conditions studied

- Autoimmune or Autoinflammatory Diseases
- HIV
- Multiple Sclerosis
- Solid Tumors or Cancers
- Solid Organ Transplant

## Interventions

- **OTHER:** Blood samples for the study of the humoral response to SARS-CoV-2 variants and of the cellular response after vaccination against COVID-19

## Key facts

- **NCT ID:** NCT04844489
- **Lead sponsor:** Assistance Publique - Hôpitaux de Paris
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-04-16
- **Primary completion:** 2022-11-24
- **Final completion:** 2022-12-31
- **Target enrollment:** 377 (ACTUAL)
- **Last updated:** 2023-02-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04844489

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04844489, "Study of the Humoral Response to SARS-CoV-2 Variants and of the Cellular Response After Vaccination Against COVID-19 in Immunocompromised People". Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/clinical/NCT04844489. Licensed CC0.

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