{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Matching+Intramuscular+Placebo",
    "query": {
      "intervention": "Matching Intramuscular Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 111,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Matching+Intramuscular+Placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-14T01:36:19.840Z",
  "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": "NCT06134804",
      "title": "A Study of 9-valent Extraintestinal Pathogenic Escherichia Coli Vaccine (ExPEC9V) and High-dose Quadrivalent Influenza Vaccine, With and Without Co-administration, in Adults Aged 65 Years or Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Invasive Extraintestinal Pathogenic Escherichia Coli Disease (IED) Prevention"
      ],
      "interventions": [
        {
          "name": "ExPEC9V",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        },
        {
          "name": "HD quadrivalent influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 959,
      "start_date": "2023-10-24",
      "completion_date": "2024-07-26",
      "has_results": true,
      "last_update_posted_date": "2026-04-03",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 24,
      "location_summary": "Huntsville, Alabama • Mobile, Alabama • San Diego, California + 19 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Melbourne",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06134804"
    },
    {
      "nct_id": "NCT03615482",
      "title": "A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 When Administered Concomitantly With Influenza Vaccine in Healthy Adults 50 Years of Age or Older (V114-021/PNEU-FLU)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "V114",
          "type": "BIOLOGICAL"
        },
        {
          "name": "QIV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Matching Placebo for V114",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 1200,
      "start_date": "2018-09-14",
      "completion_date": "2019-06-24",
      "has_results": true,
      "last_update_posted_date": "2024-05-22",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 45,
      "location_summary": "Birmingham, Alabama • Chandler, Arizona • Mesa, Arizona + 39 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03615482"
    },
    {
      "nct_id": "NCT04096326",
      "title": "AGN-151586 Dose-Ranging Study for Treatment of Glabellar Lines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Glabellar Lines"
      ],
      "interventions": [
        {
          "name": "AGN-151586",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allergan",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 198,
      "start_date": "2019-09-26",
      "completion_date": "2020-09-09",
      "has_results": true,
      "last_update_posted_date": "2023-07-28",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 9,
      "location_summary": "Fremont, California • Santa Monica, California • Miami, Florida + 6 more",
      "locations": [
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Wilmington",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04096326"
    },
    {
      "nct_id": "NCT02915016",
      "title": "Evaluating the Safety and Immunogenicity of HIV Clade C DNA Vaccine and MF59- or AS01B-Adjuvanted Clade C Env Protein Vaccines in Various Combinations in Healthy, HIV-Uninfected Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "DNA-HIV-PT123 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bivalent Subtype C gp120/MF59 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bivalent Subtype C gp120/AS01B vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "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": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 334,
      "start_date": "2016-12-07",
      "completion_date": "2020-02-12",
      "has_results": true,
      "last_update_posted_date": "2022-04-29",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Boston, Massachusetts • New York, New York + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02915016"
    },
    {
      "nct_id": "NCT01317745",
      "title": "H5N1 Mix and Match With MF59",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Phosphate Buffered Saline (PBS) diluent",
          "type": "OTHER"
        },
        {
          "name": "MF59 Adjuvant",
          "type": "DRUG"
        },
        {
          "name": "H5N1 Antigen",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 270,
      "start_date": "2011-05",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2013-01-25",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 5,
      "location_summary": "Atlanta, Georgia • Decatur, Georgia • Iowa City, Iowa + 2 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01317745"
    },
    {
      "nct_id": "NCT04988152",
      "title": "A Study to Investigate the PK, Safety, and Tolerability of Sotrovimab vs Placebo Administered IV or IM in Japanese and Caucasian Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "sotrovimab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo to Biologic",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Vir Biotechnology, 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": 48,
      "start_date": "2021-07-06",
      "completion_date": "2021-12-07",
      "has_results": true,
      "last_update_posted_date": "2024-06-07",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 2,
      "location_summary": "Anaheim, California • Glendale, California",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04988152"
    },
    {
      "nct_id": "NCT03915067",
      "title": "BOTOX® for the Treatment of Platysma Prominence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Platysma Prominence"
      ],
      "interventions": [
        {
          "name": "BOTOX® purified neurotoxin complex",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allergan",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 171,
      "start_date": "2019-04-23",
      "completion_date": "2020-04-16",
      "has_results": true,
      "last_update_posted_date": "2023-05-03",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Coral Gables, Florida • Chicago, Illinois + 4 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Hunt Valley",
          "state": "Maryland"
        },
        {
          "city": "Mount Kisco",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03915067"
    },
    {
      "nct_id": "NCT04956575",
      "title": "A Study of mRNA-1010 Seasonal Influenza Vaccine in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Seasonal Influenza"
      ],
      "interventions": [
        {
          "name": "mRNA-1010",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Active Comparator",
          "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": 885,
      "start_date": "2021-07-06",
      "completion_date": "2022-09-27",
      "has_results": true,
      "last_update_posted_date": "2023-10-27",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 21,
      "location_summary": "Phoenix, Arizona • Tempe, Arizona • Colton, California + 17 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Colton",
          "state": "California"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Savannah",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04956575"
    },
    {
      "nct_id": "NCT03520959",
      "title": "A Phase 3, Randomized, Double-blind, Placebo-controlled Study For Subjects With Locally-advanced Unresectable or Metastatic Synovial Sarcoma (V943-003, IMDZ-04-1702)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Synovial Sarcoma",
        "Cancer",
        "Soft Tissue Sarcoma",
        "Sarcoma",
        "Metastatic Sarcoma"
      ],
      "interventions": [
        {
          "name": "LV305",
          "type": "BIOLOGICAL"
        },
        {
          "name": "G305",
          "type": "BIOLOGICAL"
        },
        {
          "name": "LV305-matching placebo",
          "type": "OTHER"
        },
        {
          "name": "G305-matching placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Immune Design, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2018-09-18",
      "completion_date": "2018-11-20",
      "has_results": true,
      "last_update_posted_date": "2020-04-16",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 27,
      "location_summary": "Scottsdale, Arizona • Tucson, Arizona • Los Angeles, California + 24 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03520959"
    },
    {
      "nct_id": "NCT01877655",
      "title": "A Study to Evaluate a Therapeutic Vaccine, ASP0113, in Cytomegalovirus (CMV)-Seropositive Recipients Undergoing Allogeneic, Hematopoietic Cell Transplant (HCT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cytomegalovirus (CMV)-Positive Recipients",
        "Allogeneic, Hematopoietic Cell Transplant (HCT)"
      ],
      "interventions": [
        {
          "name": "ASP0113",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Astellas Pharma Global Development, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 514,
      "start_date": "2013-09-11",
      "completion_date": "2022-03-01",
      "has_results": true,
      "last_update_posted_date": "2024-10-24",
      "last_synced_at": "2026-10-14T01:36:19.840Z",
      "location_count": 27,
      "location_summary": "Birmingham, Alabama • Tucson, Arizona • San Francisco, California + 22 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01877655"
    }
  ]
}