Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Jul 22, 2026, 12:26 PM EDT

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Showing 1–6 of 6 matching trials from the live ClinicalTrials.gov search.
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Conditions
β-thalassemia, Ineffective Erythropoiesis, Chronic Anemia
Interventions
PTG-300
Drug
Lead sponsor
Protagonist Therapeutics, Inc.
Industry
Eligibility
12 Years to 65 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
3
States / cities
Oakland, California • Boston, Massachusetts • Philadelphia, Pennsylvania
Conditions
β-thalassemia, Ineffective Erythropoiesis
Interventions
PTG-300
Drug
Lead sponsor
Protagonist Therapeutics, Inc.
Industry
Eligibility
12 Years to 65 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
2
States / cities
Oakland, California • Boston, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers Results available

Echinacea-based Supplement Does Not Improve Markers of Performance in Athletes

NCT02134119
Conditions
Ineffective Erythropoiesis
Interventions
Echinacea-based dietary supplement, Placebo
Dietary Supplement · Drug
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 44 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Lubbock, Texas
Recruiting No phase listed Observational Accepts healthy volunteers

The Congenital Dyserythropoietic Anemia Registry (CDAR)

NCT02964494
Conditions
Congenital Dyserythropoietic Anemia (CDA)
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
10,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2031
U.S. locations
1
States / cities
Cincinnati, Ohio
Conditions
Beta Thalassemia, Hemoglobinopathy
Interventions
Hydroxyurea
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Completed No phase listed Observational Accepts healthy volunteers

The Role of Erythropoietin in Myelodysplastic Syndrome

NCT00723112
Conditions
Myelodysplastic Syndrome
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
2
States / cities
Salt Lake City, Utah