# Knee Arthroplasty Activity Trial

> **NCT04107649** · NA · ACTIVE_NOT_RECRUITING · sponsor: **Brigham and Women's Hospital** · enrollment: 600 (estimated)

## Conditions studied

- Knee Osteoarthritis
- Total Knee Replacement

## Interventions

- **BEHAVIORAL:** Telephonic Active Coaching (Motivational Interviewing) + Financial Incentives
- **BEHAVIORAL:** Wrist based activity tracker wear
- **OTHER:** Basic Study Activities

## Key facts

- **NCT ID:** NCT04107649
- **Lead sponsor:** Brigham and Women's Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2023-04-27
- **Primary completion:** 2028-06-15
- **Final completion:** 2028-06-15
- **Target enrollment:** 600 (ESTIMATED)
- **Last updated:** 2025-11-24

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04107649

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04107649, "Knee Arthroplasty Activity Trial". Retrieved via AI Analytics 2026-06-16 from https://api.ai-analytics.org/clinical/NCT04107649. Licensed CC0.

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