# Immune Response to Anti COVID-19 Vaccine in Immunocompromised Patients: a Cohort Study

> **NCT04888793** · — · COMPLETED · sponsor: **Pontificia Universidad Catolica de Chile** · enrollment: 260 (actual)

## Conditions studied

- Covid19
- COVID-19 Vaccines

## Interventions

- **DIAGNOSTIC_TEST:** Serologic immune response evaluation

## Key facts

- **NCT ID:** NCT04888793
- **Lead sponsor:** Pontificia Universidad Catolica de Chile
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-05-12
- **Primary completion:** 2021-09-01
- **Final completion:** 2021-11-01
- **Target enrollment:** 260 (ACTUAL)
- **Last updated:** 2021-11-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04888793

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04888793, "Immune Response to Anti COVID-19 Vaccine in Immunocompromised Patients: a Cohort Study". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04888793. Licensed CC0.

---

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