# A Phase 2b/3a Study to Evaluate the Efficacy and Safety of JointStem in Patients Diagnosed as Knee Osteoarthritis

> **NCT04368806** · PHASE2,PHASE3 · RECRUITING · sponsor: **Nature Cell Co. Ltd.** · enrollment: 140 (estimated)

## Conditions studied

- Osteoarthritis, Knee

## Interventions

- **DRUG:** JointStem
- **OTHER:** Placebo Control

## Key facts

- **NCT ID:** NCT04368806
- **Lead sponsor:** Nature Cell Co. Ltd.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2,PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2021-05-26
- **Primary completion:** 2026-12-30
- **Final completion:** 2026-12-31
- **Target enrollment:** 140 (ESTIMATED)
- **Last updated:** 2025-07-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04368806

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04368806, "A Phase 2b/3a Study to Evaluate the Efficacy and Safety of JointStem in Patients Diagnosed as Knee Osteoarthritis". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT04368806. Licensed CC0.

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