# Cross-over Study of the Efficacy and Safety of SierraSil Joint Formula 14 in Osteoarthritis of the Knee

> **NCT02156440** · PHASE2 · COMPLETED · sponsor: **KGK Science Inc.** · enrollment: 150 (actual)

## Conditions studied

- Osteoarthritis of the Knee

## Interventions

- **DIETARY_SUPPLEMENT:** SierraSil Joint Formula 14
- **DIETARY_SUPPLEMENT:** Placebo

## Key facts

- **NCT ID:** NCT02156440
- **Lead sponsor:** KGK Science Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2011-09
- **Primary completion:** 2012-04
- **Final completion:** 2012-04
- **Target enrollment:** 150 (ACTUAL)
- **Last updated:** 2014-06-05

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02156440

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02156440, "Cross-over Study of the Efficacy and Safety of SierraSil Joint Formula 14 in Osteoarthritis of the Knee". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT02156440. Licensed CC0.

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