# the ANRS CO21 " Extreme " Cohort (CODEX)

> **NCT01520844** · NA · RECRUITING · sponsor: **ANRS, Emerging Infectious Diseases** · enrollment: 450 (estimated)

## Conditions studied

- HIV Infection

## Interventions

- **BIOLOGICAL:** blood sampling

## Key facts

- **NCT ID:** NCT01520844
- **Lead sponsor:** ANRS, Emerging Infectious Diseases
- **Sponsor class:** OTHER_GOV
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2012-02
- **Primary completion:** 2029-09
- **Final completion:** 2030-09
- **Target enrollment:** 450 (ESTIMATED)
- **Last updated:** 2026-04-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01520844

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01520844, "the ANRS CO21 " Extreme " Cohort (CODEX)". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT01520844. Licensed CC0.

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