Where are peptides being studied? Explore registered human studies by product, phase, condition and location — from early development through Phase 4, alongside studies where phase does not apply.
Searchable results come from ClinicalTrials.gov and include international sites. For broader coverage, use the worldwide and regional registries below. No single registry captures every study.
Enter a peptide, product, condition or location. Try generic names, brand names and development codes separately. Results are registry search matches, not automatically verified links to a WPF peptide record.
Search terms are sent to ClinicalTrials.gov and appear in the page URL. Do not enter personal or medical identifying information. Registry records are served with up to a one-hour cache; registry updates themselves can lag real-world changes.
Registry search results
18 matching registry records; showing 18 on this page, newest registry updates first. Search checked 2026-11-08 17:30 UTC. Counts are registry matches, not unique peptides or a worldwide total.
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Parker Cornea Vestavia Hills, Alabama, United States
Explore the world’s study registries
These links open external registries; their records are not merged into the results above. WHO ICTRP provides a broader search across contributing registries. Search the same generic name, aliases and development codes in relevant regions. One multinational study may appear in more than one registry, so compare registration identifiers before counting it twice.
Start: 2016-11. Completion: 2018-03 (may be estimated). Results are posted in this registry.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
RGN-259 (drug) — also listed as: Tβ4, Thymosin Beta 4
Placebo (drug) — also listed as: Vehicle Control
Where the study takes place — 10 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Cornea & Cataract Consultants of Arizona Phoenix, Arizona, United States Site recruitment: Not reported
Eye Research Foundation Newport Beach, California, United States Site recruitment: Not reported
Vision Institute Colorado Springs, Colorado, United States Site recruitment: Not reported
The Eye Care Group Waterbury, Connecticut, United States Site recruitment: Not reported
Midwest Cornea Associates, LLC Indianapolis, Indiana, United States Site recruitment: Not reported
Eye Care Institute Louisville, Kentucky, United States Site recruitment: Not reported
Andover Eye Associates Andover, Massachusetts, United States Site recruitment: Not reported
Total Eye Care, P.A. Memphis, Tennessee, United States Site recruitment: Not reported
Nashville Vision Associates Nashville, Tennessee, United States Site recruitment: Not reported
Eye Consultants of Texas Grapevine, Texas, United States Site recruitment: Not reported
Start: 2019-05-24. Completion: 2021-10-07 (may be estimated). Results are posted in this registry.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
RGN-259 (drug) — also listed as: Tβ4, Thymosin Beta 4
Placebo (drug) — also listed as: Vehicle Control
Where the study takes place — 20 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Cornea and Cataract Consultants of Arizona Phoenix, Arizona, United States Site recruitment: Not reported
Eye Research Foundation Newport Beach, California, United States Site recruitment: Not reported
Vision Institute Colorado Springs, Colorado, United States Site recruitment: Not reported
Dovilan Wyatt MD, LLC Chicago, Illinois, United States Site recruitment: Not reported
Whitson Vision Indianapolis, Indiana, United States Site recruitment: Not reported
Midwest Cornea Associates, LLC Indianapolis, Indiana, United States Site recruitment: Not reported
The Eye Care Institute Louisville, Kentucky, United States Site recruitment: Not reported
Andover Eye Associates Andover, Massachusetts, United States Site recruitment: Not reported
Andover Eye Associates Raynham, Massachusetts, United States Site recruitment: Not reported
Center For Sight Henderson, Nevada, United States Site recruitment: Not reported
Oculus Research, Inc. at the Eye Care Center Raleigh, North Carolina, United States Site recruitment: Not reported
Visual Eyes Optometric Shelby, North Carolina, United States Site recruitment: Not reported
Bergstrom Eye Research, LLC Fargo, North Dakota, United States Site recruitment: Not reported
Scott & Christie and Associates, PC Cranberry Township, Pennsylvania, United States Site recruitment: Not reported
Andover Eye Associates Warwick, Rhode Island, United States Site recruitment: Not reported
Total Eye Care, P.A. Memphis, Tennessee, United States Site recruitment: Not reported
Texan Eye/Keystone Research Austin, Texas, United States Site recruitment: Not reported
Mountain View Eye Center Layton, Utah, United States Site recruitment: Not reported
Country Hills Eye Center Ogden, Utah, United States Site recruitment: Not reported
Piedmont Eye Center Lynchburg, Virginia, United States Site recruitment: Not reported
Acute Myocardial Infarction (AMI); Acute Myocardial Infarction of Anterior Wall; Acute Myocardial Infarction With ST Elevation; Acute Myocardial Infarction of Left Ventricle; Acute Myocardial Infarction With ST Segment Elevation
Sponsor
Beijing Northland Biotech. Co., Ltd.
Countries with listed sites
China
Registry dates and results
Start: 2026-05-18. Completion: 2028-05-17 (may be estimated). No results posted in this registry response.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
Recombinant Human Thymosin Beta 4 Injection (NL005) (drug)
Placebo (drug)
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Fuwai Hospital Chinese Academy of Medical Sciences (CAMS) Beijing, Beijing Municipality, China Site recruitment: Not reported
Start: 2026-02-05. Completion: 2028-02-17 (may be estimated). No results posted in this registry response.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
TB-500 (drug)
Placebo (drug)
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Peking University Shenzhen Hospital Shenzhen, Guangdong, China Site recruitment: Recruiting
NL005 High Dose (drug) — also listed as: NL005（ High Dose）
Placebo (drug)
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Fuwai Hospital, Chinese Academy of Medical Sciences Beijing, China Site recruitment: Not reported
Start: 2020-11-23. Completion: 2021-11-18 (may be estimated). No results posted in this registry response.
Products and interventions (4)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
Low Dose (drug) — also listed as: NL005（ Low Dose）
Middle Dose (drug) — also listed as: NL005（ Middle Dose）
High Dose (drug) — also listed as: NL005（High Dose）
Placebo (other)
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Fuwai Hospital, Chinese Academy of Medical Sciences Beijing, China Site recruitment: Not reported
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
The registry does not list facilities in this record. This does not mean the study has no sites.
Start: 2018-07-30. Completion: 2019-07-26 (may be estimated). No results posted in this registry response.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
Recombinant Human Thymosin β4 (drug) — also listed as: rh-β4
Placebo (other)
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Beijing Shijitan Hospital Beijing, China Site recruitment: Not reported
Start: 2017-07-17. Completion: 2018-06-20 (may be estimated). No results posted in this registry response.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
Recombinant Human Thymosin β4 (drug) — also listed as: rh-β4
Placebo (other)
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Beijing Shijitan Hospital Beijing, China Site recruitment: Not reported
Start: 2015-09. Completion: 2016-07 (may be estimated). No results posted in this registry response.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
RGN-259 (drug) — also listed as: Tβ4, Thymosin Beta 4
Placebo (drug) — also listed as: Vehicle Control
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Andover, MA Andover, Massachusetts, United States Site recruitment: Not reported
Start: 2008-04. Completion: 2017-01-01 (may be estimated). No results posted in this registry response.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
thymosin beta 4 (drug)
Placebo (other)
Where the study takes place — 1 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Healthcare Discoveries LLC San Antonio, Texas, United States Site recruitment: Not reported
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Michigan Cornea Consultants, P.C. Southfield, Michigan, United States Site recruitment: Not reported
Start: 2011-08. Completion: 2011-12 (may be estimated). Results are posted in this registry.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
Thymosin beta 4 (drug) — also listed as: Tβ4, RGN-259 (eye drop formulation of Tβ4)
Placebo (drug) — also listed as: Vehicle Control
Where the study takes place — 0 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
The registry does not list facilities in this record. This does not mean the study has no sites.
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
United Medical Research Institute Inglewood, California, United States Site recruitment: Not reported
Doheny Eye Institute Los Angeles, California, United States Site recruitment: Not reported
Magruder Eye Institue Orlando, Florida, United States Site recruitment: Not reported
Southeast Retina Center Augusta, Georgia, United States Site recruitment: Not reported
Western Carolina Retinal Associates, PA Asheville, North Carolina, United States Site recruitment: Not reported
Start: 2006-02. Completion: 2012-11 (may be estimated). Results are posted in this registry.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
Thymosin Beta 4 (drug)
Placebo (drug)
Where the study takes place — 0 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
The registry does not list facilities in this record. This does not mean the study has no sites.
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Chirurgia Vascolare Bologna, Italy Site recruitment: Not reported
Università degli Studi di Napoli - Federico II Naples, Italy Site recruitment: Not reported
Azienda Ospedaliera di Padova Padova, Italy Site recruitment: Not reported
Unità Operativa di Angiologia Azienda Ospedaliera di Padova Padova, Italy Site recruitment: Not reported
Istituto Dermopatico dell'Immacolata (IDI) Rome, Italy Site recruitment: Not reported
Klinika Chirurgii Naczyń i Angiologii Lublin, Poland Site recruitment: Not reported
Klinika Chirurgii Ogólnej i Naczyniowej, Szczecin, Poland Site recruitment: Not reported
Oddział Angiologiczny Wroclaw, Poland Site recruitment: Not reported
Start: 2006-05. Completion: 2008-12 (may be estimated). Results are posted in this registry.
Products and interventions (2)
Includes comparators and combinations. A search match is not a verified peptide identity or evidence of benefit.
Placebo (drug)
Thymosin Beta 4 (drug)
Where the study takes place — 12 listed sites
Site status can differ from overall study status. This list includes all reported sites, even when your search specifies one location. Confirm availability and eligibility with the study team through the original record.
Institute for Advanced Wound Care Montgomery, Alabama, United States Site recruitment: Not reported
Impact Clinical Trials Beverly Hills, California, United States Site recruitment: Not reported
Long Beach VAMC Long Beach, California, United States Site recruitment: Not reported
Bay Pines VA Medical Center Bay Pines, Florida, United States Site recruitment: Not reported
A+ Research, Inc. Miami, Florida, United States Site recruitment: Not reported
Mount Dora Research Center, Inc. Mt. Dora, Florida, United States Site recruitment: Not reported
Hines VAMC Hines, Illinois, United States Site recruitment: Not reported
Wound Healing Laboratory Plastic Surgery UMass Medical Center Worcester, Massachusetts, United States Site recruitment: Not reported
New York Presbyterian Hospital New York, New York, United States Site recruitment: Not reported
University of North Carolina Hospital Chapel Hill, North Carolina, United States Site recruitment: Not reported
New Bridge Medical Center Warren, Pennsylvania, United States Site recruitment: Not reported
Mcguire VA Medical Center Richmond, Virginia, United States Site recruitment: Not reported
Registry directory checked October 5, 2026 against the WHO registry network. This is a starting point, not complete coverage of every country or continent. Record availability, language and update schedules vary by registry.