{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine+1&page=3", "query": { "intervention": "COVID-19 Vaccine 1", "page": 3 }, "page_size": 10 }, "pagination": { "page": 3, "page_size": 10, "total_count": 223, "total_pages": 23, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine+1&page=4&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine+1&page=2&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-09T19:58:31.617Z", "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": "NCT05925127", "title": "Phase 2/3 Heterologous Boosting Study With Different Dose Levels of Monovalent SARS-CoV-2 rS Vaccines", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "COVID-19" ], "interventions": [ { "name": "NVX-CoV2373 (5μg)", "type": "BIOLOGICAL" }, { "name": "NVX-CoV2601(5μg)", "type": "BIOLOGICAL" }, { "name": "NVX-CoV2601(35μg)", "type": "BIOLOGICAL" }, { "name": "NVX-CoV2601(50μg)", "type": "BIOLOGICAL" }, { "name": "Bivalent BA.4/5", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Novavax", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "50 Years", "maximum_age": "99 Years", "sex": "ALL", "summary": "50 Years to 99 Years" }, "enrollment_count": 994, "start_date": "2023-10-16", "completion_date": "2024-05-21", "has_results": false, "last_update_posted_date": "2024-12-13", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 50, "location_summary": "Birmingham, Alabama • Tucson, Arizona • Banning, California + 44 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Banning", "state": "California" }, { "city": "Chula Vista", "state": "California" }, { "city": "La Mesa", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05925127" }, { "nct_id": "NCT05082935", "title": "COVID-19: Healthy Oregon (Oregon Saludable): Together We Can (Juntos Podemos) Phase II", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Health Behavior", "Health Care Utilization" ], "interventions": [ { "name": "Phase II Promotores de Salud", "type": "BEHAVIORAL" }, { "name": "Phase I Promotores de Salud Outreach", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "University of Oregon", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "3 Years", "maximum_age": null, "sex": "ALL", "summary": "3 Years and older" }, "enrollment_count": 1463, "start_date": "2021-09-15", "completion_date": "2023-04-30", "has_results": true, "last_update_posted_date": "2024-07-22", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 1, "location_summary": "Eugene, Oregon", "locations": [ { "city": "Eugene", "state": "Oregon" } ], "official_url": "https://clinicaltrials.gov/study/NCT05082935" }, { "nct_id": "NCT04834726", "title": "COVID-19 Vaccine Text Outreach", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Covid19" ], "interventions": [ { "name": "Opt-In (Call-Back)", "type": "BEHAVIORAL" }, { "name": "Opt-in (In-Bound)", "type": "BEHAVIORAL" }, { "name": "Standard Message", "type": "BEHAVIORAL" }, { "name": "Clinician Endorsement", "type": "BEHAVIORAL" }, { "name": "Scarcity", "type": "BEHAVIORAL" }, { "name": "Opt-Out Framing", "type": "BEHAVIORAL" }, { "name": "Phone Call", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "University of Pennsylvania", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "16 Years", "maximum_age": null, "sex": "ALL", "summary": "16 Years and older" }, "enrollment_count": 19554, "start_date": "2021-04-29", "completion_date": "2021-07-06", "has_results": true, "last_update_posted_date": "2023-03-27", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT04834726" }, { "nct_id": "NCT04977024", "title": "SARS-CoV-2 Vaccine (GEO-CM04S1) Versus mRNA SARS-COV-2 Vaccine in Patients With Blood Cancer", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "COVID-19 Infection", "Hematopoietic and Lymphoid System Neoplasm", "Leukemia", "Lymphoma", "Plasma Cell Myeloma" ], "interventions": [ { "name": "COVID-19 Vaccine", "type": "BIOLOGICAL" }, { "name": "Diagnostic Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Synthetic MVA-based SARS-CoV-2 Vaccine GEO-CM04S1", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "GeoVax, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 63, "start_date": "2021-09-27", "completion_date": "2027-12-31", "has_results": false, "last_update_posted_date": "2026-02-11", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 6, "location_summary": "Duarte, California • Baltimore, Maryland • Worcester, Massachusetts + 3 more", "locations": [ { "city": "Duarte", "state": "California" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "Worcester", "state": "Massachusetts" }, { "city": "Stony Brook", "state": "New York" }, { "city": "Winston-Salem", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT04977024" }, { "nct_id": "NCT06547814", "title": "COVID-19 Vaccine Hesitancy Counseling Intervention for Pharmacists: A Stepped-Wedge Trial", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "COVID-19" ], "interventions": [ { "name": "Standard implementation webinar and online training", "type": "BEHAVIORAL" }, { "name": "Virtual facilitation", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "University of North Carolina, Chapel Hill", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "99 Years", "sex": "ALL", "summary": "18 Years to 99 Years" }, "enrollment_count": 20, "start_date": "2024-08-05", "completion_date": "2025-04-01", "has_results": true, "last_update_posted_date": "2026-01-21", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 1, "location_summary": "Chapel Hill, North Carolina", "locations": [ { "city": "Chapel Hill", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT06547814" }, { "nct_id": "NCT04969263", "title": "COVID-19 Protection After Transplant Pilot Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Kidney Transplant Recipients" ], "interventions": [ { "name": "BNT162b2 vaccine (Pfizer/BioNTech)", "type": "BIOLOGICAL" }, { "name": "mRNA-1273 vaccine (Moderna)", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 81, "start_date": "2021-08-10", "completion_date": "2023-03-10", "has_results": true, "last_update_posted_date": "2025-07-30", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT04969263" }, { "nct_id": "NCT06683352", "title": "A Study to Learn About Flu and COVID-19 Vaccine Responses in Healthy People", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Influenza,Human", "COVID-19" ], "interventions": [ { "name": "Investigational Influenza Vaccine", "type": "BIOLOGICAL" }, { "name": "COVID-19 Vaccine", "type": "BIOLOGICAL" }, { "name": "Investigational Influenza/COVID-19 Vaccine", "type": "COMBINATION_PRODUCT" }, { "name": "Licensed Influenza Vaccine 1", "type": "BIOLOGICAL" }, { "name": "Licensed Influenza Vaccine 2", "type": "BIOLOGICAL" }, { "name": "Placebo", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "COMBINATION_PRODUCT", "OTHER" ], "sponsor": "BioNTech SE", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1353, "start_date": "2024-11-11", "completion_date": "2025-07-15", "has_results": true, "last_update_posted_date": "2026-08-19", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 22, "location_summary": "Lake Forest, California • San Diego, California • Walnut Creek, California + 17 more", "locations": [ { "city": "Lake Forest", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Walnut Creek", "state": "California" }, { "city": "Milford", "state": "Connecticut" }, { "city": "Hialeah", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT06683352" }, { "nct_id": "NCT04798027", "title": "Study of mRNA Vaccine Formulation Against COVID-19 in Healthy Adults 18 Years of Age and Older", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "COVID-19" ], "interventions": [ { "name": "SARS-CoV-2 mRNA vaccine formulation 1", "type": "BIOLOGICAL" }, { "name": "SARS-CoV-2 mRNA vaccine formulation 2", "type": "BIOLOGICAL" }, { "name": "SARS-CoV-2 mRNA vaccine formulation 3", "type": "BIOLOGICAL" }, { "name": "Placebo (0.9% normal saline)", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Sanofi Pasteur, a Sanofi Company", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 182, "start_date": "2021-03-12", "completion_date": "2022-06-27", "has_results": true, "last_update_posted_date": "2025-09-11", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 12, "location_summary": "Rolling Hills Estates, California • Hollywood, Florida • Miami, Florida + 9 more", "locations": [ { "city": "Rolling Hills Estates", "state": "California" }, { "city": "Hollywood", "state": "Florida" }, { "city": "Miami", "state": "Florida" }, { "city": "Iowa City", "state": "Iowa" }, { "city": "Kansas City", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT04798027" }, { "nct_id": "NCT05216510", "title": "Assessment of Delayed-type Hypersensitivity Reactions to SARS-CoV-2 Peptide Antigens", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Detection of Delayed-type Hypersensitivity Reactions to SARS-CoV-2 in Individuals Exposed to SARS-CoV-2" ], "interventions": [ { "name": "TNX-2110", "type": "BIOLOGICAL" }, { "name": "TNX-2120", "type": "BIOLOGICAL" }, { "name": "TNX-2130", "type": "BIOLOGICAL" }, { "name": "CANDIN", "type": "BIOLOGICAL" }, { "name": "Diluent", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Tonix Pharmaceuticals, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 9, "start_date": "2022-01-07", "completion_date": "2022-09-17", "has_results": true, "last_update_posted_date": "2024-11-06", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 1, "location_summary": "Berlin, New Jersey", "locations": [ { "city": "Berlin", "state": "New Jersey" } ], "official_url": "https://clinicaltrials.gov/study/NCT05216510" }, { "nct_id": "NCT06703190", "title": "Estimated Vaccine Effectiveness and Durability of Pfizer/BioNTech 2024-2025 COVID-19 Vaccine", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "COVID-19" ], "interventions": [ { "name": "Pfizer-BioNTech BNT162b2 COVID-19 Vaccinated", "type": "BIOLOGICAL" }, { "name": "Not vaccinated with 2024-2025 formulated COVID-19 vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "5 Years", "maximum_age": null, "sex": "ALL", "summary": "5 Years and older" }, "enrollment_count": 1, "start_date": "2024-11-25", "completion_date": "2025-06-06", "has_results": false, "last_update_posted_date": "2025-11-06", "last_synced_at": "2026-10-09T19:58:31.617Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT06703190" } ] }