Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 1, 2026, 10:55 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–6 of 6 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Osteoarthritis of the Knee
Interventions
4 mL injection of Ampion, 4 mL Injection of Placebo
Biological · Drug
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
342 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Englewood, Colorado
Conditions
Osteoarthritis of the Knee
Interventions
4 mL injection of AMPION™, 4 mL injection of Placebo
Biological · Drug
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Englewood, Colorado
Conditions
Osteoarthritis of the Knee
Interventions
4 mL injection of Ampion, 4 mL injection of Placebo
Biological · Drug
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Englewood, Colorado
Conditions
Osteoarthritis, Knee, Knee Osteoarthritis, Knee Arthritis, Knee Pain Chronic
Interventions
4 mL injection of Ampion, 4 mL Injection of Placebo
Biological · Drug
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
13
States / cities
Birmingham, Alabama • Encinitas, California • Fullerton, California + 10 more
Conditions
Severe Osteoarthritis of the Knee
Interventions
4 mL injection of AMPION™
Biological
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
11
States / cities
Birmingham, Alabama • Encinitas, California • Fullerton, California + 8 more
Conditions
Severe Osteoarthritis of the Knee
Interventions
Ampion, Saline
Biological · Drug
Lead sponsor
Ampio Pharmaceuticals. Inc.
Industry
Eligibility
40 Years to 85 Years
Enrollment
1,043 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Englewood, Colorado