{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Investigational+RSV+vaccine+4",
    "query": {
      "intervention": "Investigational RSV vaccine 4"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T21:55:01.106Z",
  "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": "NCT06573281",
      "title": "A Study on the Safety and Immune Response to an mRNA-based RSV Investigational Vaccine in Healthy Adults Aged 18-45 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infections"
      ],
      "interventions": [
        {
          "name": "Investigational RSV vaccine 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational RSV vaccine 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational RSV vaccine 3",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational RSV vaccine 4",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational RSV vaccine 5",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational RSV vaccine 6",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 213,
      "start_date": "2024-09-30",
      "completion_date": "2026-02-26",
      "has_results": false,
      "last_update_posted_date": "2026-07-30",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 5,
      "location_summary": "Rolling Hills Estates, California • Atlanta, Georgia • Lenexa, Kansas + 2 more",
      "locations": [
        {
          "city": "Rolling Hills Estates",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06573281"
    },
    {
      "nct_id": "NCT06237296",
      "title": "Study of the Safety and Immune Response of an Investigational mRNA Vaccine for the Prevention of Respiratory Syncytial Virus and/or Human Metapneumovirus in Participants Aged 18 to 49 Years and 60 Years and Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infection",
        "Healthy Volunteers",
        "Metapneumovirus Infection"
      ],
      "interventions": [
        {
          "name": "RSV/hMPV mRNA LNP 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RSV/hMPV mRNA LNP 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RSV mRNA LNP 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "hMPV mRNA LNP 1",
          "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": 558,
      "start_date": "2024-01-23",
      "completion_date": "2025-02-11",
      "has_results": false,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 9,
      "location_summary": "Gardena, California • Hallandale, Florida • Meridian, Idaho + 6 more",
      "locations": [
        {
          "city": "Gardena",
          "state": "California"
        },
        {
          "city": "Hallandale",
          "state": "Florida"
        },
        {
          "city": "Meridian",
          "state": "Idaho"
        },
        {
          "city": "Sioux City",
          "state": "Iowa"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06237296"
    },
    {
      "nct_id": "NCT04919109",
      "title": "Safety and Immunogenicity of CodaVax-RSV in Seropositive and Seronegative Children",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infections"
      ],
      "interventions": [
        {
          "name": "CodaVax-RSV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Normal Saline",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Codagenix, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "6 Months to 5 Years"
      },
      "enrollment_count": 41,
      "start_date": "2023-03-28",
      "completion_date": "2026-07-08",
      "has_results": false,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 4,
      "location_summary": "Lincoln, Nebraska • Omaha, Nebraska • Providence, Rhode Island + 1 more",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "West Jordan",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04919109"
    },
    {
      "nct_id": "NCT03049488",
      "title": "Dose, Safety, Tolerability and Immunogenicity of a Stabilized Prefusion RSV F Subunit Protein Vaccine, VRC-RSVRGP084-00-VP (DS-Cav1), Alone or With Alum Adjuvant, in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Respiratory Syncytial Virus"
      ],
      "interventions": [
        {
          "name": "VRC-RSVRGP084-00-VP",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Aluminum Hydroxide Suspension",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 95,
      "start_date": "2017-02-22",
      "completion_date": "2019-10-03",
      "has_results": true,
      "last_update_posted_date": "2020-10-23",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03049488"
    },
    {
      "nct_id": "NCT04798001",
      "title": "Safety and Immunogenicity of an Intranasal RSV Vaccine Expressing SARS-CoV-2 Spike Protein (COVID-19 Vaccine) in Adults",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Investigational vaccine against SARS-CoV-2 [MV-014-212] Dosage 1, Single Dose, Intranasal Drops",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational vaccine against SARS-CoV-2 [MV-014-212] Dosage 2, Single Dose, Intranasal Drops",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational vaccine against SARS-CoV-2 [MV-014-212] Dosage 3, Single Dose, Intranasal Drops",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational vaccine against SARS-CoV-2 [MV-014-212] Dosage 3, Two Doses, Intranasal Drops",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational vaccine against SARS-CoV-2 [MV-014-212] Dosage 3, Single Dose, Intranasal Spray",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Meissa Vaccines, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "18 Years to 69 Years"
      },
      "enrollment_count": 130,
      "start_date": "2021-04-12",
      "completion_date": "2022-10-31",
      "has_results": false,
      "last_update_posted_date": "2022-08-02",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 2,
      "location_summary": "Lenexa, Kansas • Raleigh, North Carolina",
      "locations": [
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04798001"
    },
    {
      "nct_id": "NCT04491877",
      "title": "Study of an Live-Attenuated Respiratory Syncytial Virus Vaccine in Infants and Toddlers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Respiratory Syncytial Virus Infection"
      ],
      "interventions": [
        {
          "name": "RSV vaccine formulation 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RSV vaccine formulation 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "18 Months",
        "sex": "ALL",
        "summary": "6 Months to 18 Months"
      },
      "enrollment_count": 259,
      "start_date": "2020-09-17",
      "completion_date": "2023-04-13",
      "has_results": true,
      "last_update_posted_date": "2025-09-09",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 25,
      "location_summary": "Gardena, California • La Mesa, California • Los Angeles, California + 21 more",
      "locations": [
        {
          "city": "Gardena",
          "state": "California"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Blackfoot",
          "state": "Idaho"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04491877"
    },
    {
      "nct_id": "NCT03303625",
      "title": "A Study to Evaluate the Safety, Tolerability and Immunogenicity of an Investigational RSV Vaccine Candidate (Ad26.RSV.preF) in Adults 18 to 50 Years of Age, and RSV-seropositive Toddlers 12 to 24 Months of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Respiratory Syncytial Viruses",
        "Respiratory Tract Infections"
      ],
      "interventions": [
        {
          "name": "Ad26.RSV.preF (1*10^11 vp)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ad26.RSV.preF (5*10^10 vp)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Janssen Vaccines & Prevention B.V.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "12 Months to 50 Years"
      },
      "enrollment_count": 48,
      "start_date": "2017-11-29",
      "completion_date": "2020-04-21",
      "has_results": true,
      "last_update_posted_date": "2025-05-25",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 1,
      "location_summary": "Newton, Kansas",
      "locations": [
        {
          "city": "Newton",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03303625"
    },
    {
      "nct_id": "NCT06397768",
      "title": "Co-administration Study of an Investigational Live-Attenuated Respiratory Syncytial Virus Vaccine in Infants and Toddlers",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "RSV Immunization"
      ],
      "interventions": [
        {
          "name": "RSVt vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Diphtheria, tetanus, pertussis, poliomyelitis , Haemophilus influenzae type b, and hepatitis B vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Diphtheria, tetanus, pertussis, Haemophilus influenzae type b and poliomyelitis vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hepatitis B vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Streptococcus pneumoniae vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rotavirus vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Measles, mumps, and rubella vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Varicella virus vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "12 Months",
        "sex": "ALL",
        "summary": "6 Months to 12 Months"
      },
      "enrollment_count": 2226,
      "start_date": "2024-05-13",
      "completion_date": "2025-09-18",
      "has_results": false,
      "last_update_posted_date": "2026-02-03",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 66,
      "location_summary": "Birmingham, Alabama • Grand Bay, Alabama • Mobile, Alabama + 55 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Grand Bay",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Bell Gardens",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06397768"
    },
    {
      "nct_id": "NCT06686654",
      "title": "Study of a Human Metapneumovirus/Respiratory Syncytial Virus mRNA Vaccine Candidate Encapsulated in a Lipid Nanoparticle-based Formulation in Adults Aged 60 Years and Older",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Human Metapneumovirus Immunization",
        "Respiratory Syncytial Virus Immunization"
      ],
      "interventions": [
        {
          "name": "Investigational hMPV/RSV vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational hMPV vaccine (monovalent)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational RSV vaccine (monovalent)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Licensed RSV Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational RSV+hMPV vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 1530,
      "start_date": "2024-11-11",
      "completion_date": "2027-01-18",
      "has_results": false,
      "last_update_posted_date": "2025-12-11",
      "last_synced_at": "2026-10-01T21:55:01.106Z",
      "location_count": 24,
      "location_summary": "Phoenix, Arizona • Garden Grove, California • Gardena, California + 20 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Gardena",
          "state": "California"
        },
        {
          "city": "Huntington Park",
          "state": "California"
        },
        {
          "city": "La Mesa",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06686654"
    }
  ]
}