# Cognitive Changes After Major Joint Replacement - Full Trial (Cognigram 2)

> **NCT03147937** · — · ACTIVE_NOT_RECRUITING · sponsor: **Dr. Stephen Choi** · enrollment: 505 (estimated)

## Conditions studied

- Postoperative Cognitive Dysfunction
- Cognitive Impairment
- Mild Cognitive Impairment
- Delirium
- Cognitive Decline
- Cognitive Change
- Working Memory
- Autoimmune Diseases
- Inflammation

## Interventions

- **OTHER:** Cognitive Testing

## Key facts

- **NCT ID:** NCT03147937
- **Lead sponsor:** Dr. Stephen Choi
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2017-05-01
- **Primary completion:** 2025-12
- **Final completion:** 2025-12
- **Target enrollment:** 505 (ESTIMATED)
- **Last updated:** 2025-09-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03147937

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03147937, "Cognitive Changes After Major Joint Replacement - Full Trial (Cognigram 2)". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT03147937. Licensed CC0.

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