{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine+2&page=2", "query": { "intervention": "COVID-19 Vaccine 2", "page": 2 }, "page_size": 10 }, "pagination": { "page": 2, "page_size": 10, "total_count": 229, "total_pages": 23, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine+2&page=3&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine+2&page=1&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-10T05:02:39.978Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT04796896", "title": "A Study to Evaluate Safety and Effectiveness of mRNA-1273 COVID-19 Vaccine in Healthy Children Between 6 Months of Age and Less Than 12 Years of Age", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "SARS-CoV-2" ], "interventions": [ { "name": "mRNA-1273", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "BIOLOGICAL" }, { "name": "mRNA-1273.214", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "ModernaTX, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "6 Months", "maximum_age": "11 Years", "sex": "ALL", "summary": "6 Months to 11 Years" }, "enrollment_count": 11942, "start_date": "2021-03-15", "completion_date": "2024-03-15", "has_results": true, "last_update_posted_date": "2025-06-13", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 83, "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Anaheim, California + 68 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Anaheim", "state": "California" }, { "city": "Banning", "state": "California" }, { "city": "El Monte", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04796896" }, { "nct_id": "NCT04952402", "title": "SARS-CoV-2 Immune Responses After COVID-19 Therapy and Subsequent Vaccine", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Covid19", "SARS-CoV2 Infection" ], "interventions": [ { "name": "Study-provided Moderna mRNA-1273 COVID-19 vaccine", "type": "BIOLOGICAL" }, { "name": "Community-provided Moderna mRNA-1273 COVID-19 Vaccine", "type": "BIOLOGICAL" }, { "name": "Community-Provided Pfizer-BioNTech BNT162b2 COVID-19 Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 43, "start_date": "2021-07-09", "completion_date": "2023-01-10", "has_results": true, "last_update_posted_date": "2023-05-24", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 6, "location_summary": "Los Angeles, California • San Diego, California • Chicago, Illinois + 3 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "Chapel Hill", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT04952402" }, { "nct_id": "NCT04860297", "title": "A Study to Evaluate Safety and Immunogenicity of mRNA-1273 Vaccine to Prevent COVID-19 in Adult Organ Transplant Recipients and in Healthy Adult Participants", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "SARS-CoV-2" ], "interventions": [ { "name": "mRNA-1273", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "ModernaTX, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 234, "start_date": "2021-04-16", "completion_date": "2023-05-22", "has_results": true, "last_update_posted_date": "2024-06-18", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 15, "location_summary": "Mesa, Arizona • San Diego, California • New Haven, Connecticut + 12 more", "locations": [ { "city": "Mesa", "state": "Arizona" }, { "city": "San Diego", "state": "California" }, { "city": "New Haven", "state": "Connecticut" }, { "city": "Tampa", "state": "Florida" }, { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT04860297" }, { "nct_id": "NCT07166770", "title": "Community-Led COVID-19 Testing Intervention to Address Mistrust", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "COVID-19", "Trust" ], "interventions": [ { "name": "Community-led discussion", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "Old Dominion University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 49, "start_date": "2025-07-01", "completion_date": "2026-01-27", "has_results": false, "last_update_posted_date": "2026-09-11", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 1, "location_summary": "Norfolk, Virginia", "locations": [ { "city": "Norfolk", "state": "Virginia" } ], "official_url": "https://clinicaltrials.gov/study/NCT07166770" }, { "nct_id": "NCT05477186", "title": "Safety and Immunogenicity Study of a Booster Dose of the Investigational CV0501 mRNA COVID-19 Vaccine in Adults at Least 18 Years Old", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "COVID-19", "SARS-CoV-2" ], "interventions": [ { "name": "CV0501 (3 μg)", "type": "BIOLOGICAL" }, { "name": "CV0501 (6 μg)", "type": "BIOLOGICAL" }, { "name": "CV0501 (12 μg)", "type": "BIOLOGICAL" }, { "name": "CV0501 (25 μg)", "type": "BIOLOGICAL" }, { "name": "CV0501 (50 μg)", "type": "BIOLOGICAL" }, { "name": "CV0501 (100 μg)", "type": "BIOLOGICAL" }, { "name": "CV0501 (200 μg)", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 185, "start_date": "2022-08-12", "completion_date": "2023-08-18", "has_results": true, "last_update_posted_date": "2025-02-21", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 11, "location_summary": "Sacramento, California • Hollywood, Florida • Melbourne, Florida + 8 more", "locations": [ { "city": "Sacramento", "state": "California" }, { "city": "Hollywood", "state": "Florida" }, { "city": "Melbourne", "state": "Florida" }, { "city": "Savannah", "state": "Georgia" }, { "city": "Peoria", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT05477186" }, { "nct_id": "NCT05091307", "title": "A Study of Ad26.COV2.S and Influenza Vaccines in Healthy Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "COVID-19 Prevention" ], "interventions": [ { "name": "Ad26.COV2.S", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "OTHER" }, { "name": "Influenza Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "Janssen Vaccines & Prevention B.V.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 861, "start_date": "2021-11-02", "completion_date": "2022-11-15", "has_results": true, "last_update_posted_date": "2025-05-25", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 17, "location_summary": "Tempe, Arizona • San Diego, California • Coral Gables, Florida + 12 more", "locations": [ { "city": "Tempe", "state": "Arizona" }, { "city": "San Diego", "state": "California" }, { "city": "Coral Gables", "state": "Florida" }, { "city": "Fort Myers", "state": "Florida" }, { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT05091307" }, { "nct_id": "NCT04614948", "title": "A Study of Ad26.COV2.S for the Prevention of SARS-CoV-2-mediated COVID-19 in Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Participants With or Without Stable Co-morbidities Associated With Progression to Severe COVID-19" ], "interventions": [ { "name": "Ad26.COV2.S", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "Janssen Vaccines & Prevention B.V.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 31835, "start_date": "2020-11-12", "completion_date": "2023-06-18", "has_results": true, "last_update_posted_date": "2025-02-04", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 63, "location_summary": "Vestavia Hills, Alabama • Phoenix, Arizona • Tucson, Arizona + 53 more", "locations": [ { "city": "Vestavia Hills", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT04614948" }, { "nct_id": "NCT07069309", "title": "A Study to Learn About COVID-19 RNA-Based Variant-Adapted Vaccine Candidate(s) Against SARS-CoV-2 in Participants Ages 12 Through 64 Years Considered at Higher Risk of Severe COVID-19, and Participants Ages ≥65 Years", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "COVID-19", "SARS-COV-2 Infection" ], "interventions": [ { "name": "BNT162b2 (2025/2026 recommended SARS-CoV-2 strain)", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "BioNTech SE", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "12 Years", "maximum_age": null, "sex": "ALL", "summary": "12 Years and older" }, "enrollment_count": 774, "start_date": "2025-07-08", "completion_date": "2026-05-01", "has_results": false, "last_update_posted_date": "2026-06-01", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 19, "location_summary": "Walnut Creek, California • Milford, Connecticut • Washington D.C., District of Columbia + 13 more", "locations": [ { "city": "Walnut Creek", "state": "California" }, { "city": "Milford", "state": "Connecticut" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Hialeah", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT07069309" }, { "nct_id": "NCT04754594", "title": "To Evaluate the Safety, Tolerability, and Immunogenicity of BNT162b2 Against COVID-19 in Healthy Pregnant Women 18 Years of Age and Older", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "SARS-CoV-2 Infection", "COVID-19", "Maternal Immunization" ], "interventions": [ { "name": "BNT162b2", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "BioNTech SE", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 726, "start_date": "2021-02-16", "completion_date": "2022-07-15", "has_results": true, "last_update_posted_date": "2024-12-06", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 56, "location_summary": "Birmingham, Alabama • Mobile, Alabama • Glendale, Arizona + 28 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" }, { "city": "Glendale", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT04754594" }, { "nct_id": "NCT05028361", "title": "Simultaneous mRNA COVID-19 and IIV4 Vaccination Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Quality of Life", "Injection Site Reaction", "Adverse Drug Event", "Systemic Reaction" ], "interventions": [ { "name": "mRNA COVID-19", "type": "BIOLOGICAL" }, { "name": "IIV4", "type": "BIOLOGICAL" }, { "name": "Placebo (saline)", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "Duke University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "5 Years", "maximum_age": null, "sex": "ALL", "summary": "5 Years and older" }, "enrollment_count": 348, "start_date": "2021-10-04", "completion_date": "2023-06-15", "has_results": true, "last_update_posted_date": "2024-03-19", "last_synced_at": "2026-10-10T05:02:39.978Z", "location_count": 3, "location_summary": "Baltimore, Maryland • Durham, North Carolina • Cincinnati, Ohio", "locations": [ { "city": "Baltimore", "state": "Maryland" }, { "city": "Durham", "state": "North Carolina" }, { "city": "Cincinnati", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT05028361" } ] }