{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28Cohort+B%29&page=4",
    "query": {
      "intervention": "Placebo (Cohort B)",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 423,
    "total_pages": 43,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28Cohort+B%29&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28Cohort+B%29&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-12T20:19:00.415Z",
  "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": "NCT07839871",
      "title": "Study to Learn About a Respiratory Syncytial Virus Vaccine in Children at High Risk of RSV Disease",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Respiratory Syncytial Virus (RSV)"
      ],
      "interventions": [
        {
          "name": "RSVpreF",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 920,
      "start_date": "2026-09-28",
      "completion_date": "2031-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-24",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 1,
      "location_summary": "South Euclid, Ohio",
      "locations": [
        {
          "city": "South Euclid",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07839871"
    },
    {
      "nct_id": "NCT02623699",
      "title": "An Efficacy, Safety, Tolerability, Pharmacokinetics and Pharmacodynamics Study of BIIB067 (Tofersen) in Adults With Inherited Amyotrophic Lateral Sclerosis (ALS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Amyotrophic Lateral Sclerosis"
      ],
      "interventions": [
        {
          "name": "Tofersen",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 176,
      "start_date": "2016-01-20",
      "completion_date": "2021-07-16",
      "has_results": true,
      "last_update_posted_date": "2023-07-28",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 20,
      "location_summary": "Phoenix, Arizona • La Jolla, California • San Francisco, California + 17 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02623699"
    },
    {
      "nct_id": "NCT01597401",
      "title": "A Single Dose Study of the Safety, Blood Levels and Biological Effects of Aes-103 Compared to Placebo in Subjects With Stable Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Aes-103",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baxalta now part of Shire",
      "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": 19,
      "start_date": "2012-05-12",
      "completion_date": "2013-06-07",
      "has_results": false,
      "last_update_posted_date": "2021-05-05",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01597401"
    },
    {
      "nct_id": "NCT00657007",
      "title": "Phase 1 Study of Belimumab in Subjects With Systemic Lupus Erythematosus (SLE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Systemic Lupus Erythematosus"
      ],
      "interventions": [
        {
          "name": "belimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Human Genome Sciences Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2002-02",
      "completion_date": "2003-03",
      "has_results": false,
      "last_update_posted_date": "2013-08-02",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Washington D.C., District of Columbia + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00657007"
    },
    {
      "nct_id": "NCT02195232",
      "title": "Cancer Associated Thrombosis and Isoquercetin (CATIQ)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Thromboembolism of Vein VTE in Colorectal Cancer",
        "Thromboembolism of Vein in Pancreatic Cancer",
        "Thromboembolism of Vein in Non-small Cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Isoquercetin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jeffrey Zwicker, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2015-01",
      "completion_date": "2019-10-22",
      "has_results": true,
      "last_update_posted_date": "2021-03-03",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 11,
      "location_summary": "Los Angeles, California • Sacramento, California • West Haven, Connecticut + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "West Haven",
          "state": "Connecticut"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "York Village",
          "state": "Maine"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02195232"
    },
    {
      "nct_id": "NCT04780841",
      "title": "A Study Evaluating the Safety and Efficacy of RDX013 for the Treatment of Hyperkalemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hyperkalemia"
      ],
      "interventions": [
        {
          "name": "RDX013",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ardelyx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 109,
      "start_date": "2021-01-11",
      "completion_date": "2022-03-03",
      "has_results": false,
      "last_update_posted_date": "2022-05-04",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 6,
      "location_summary": "Coral Gables, Florida • Miami Lakes, Florida • Miami Springs, Florida + 3 more",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "Miami Springs",
          "state": "Florida"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04780841"
    },
    {
      "nct_id": "NCT02947841",
      "title": "The Effectiveness of Alternating Stimulation in Preventing Tolerance in Essential Tremor Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Essential Tremor",
        "Deep Brain Stimulation"
      ],
      "interventions": [
        {
          "name": "Alternating stimulation",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2016-10",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2018-09-21",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02947841"
    },
    {
      "nct_id": "NCT07250802",
      "title": "A Long-Term Study of Zasocitinib in Children and Teenagers With Plaque Psoriasis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Plaque Psoriasis"
      ],
      "interventions": [
        {
          "name": "Zasocitinib",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "4 Years to 17 Years"
      },
      "enrollment_count": 110,
      "start_date": "2025-12-04",
      "completion_date": "2033-01-24",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 11,
      "location_summary": "Chula Vista, California • Fountain Valley, California • Hialeah, Florida + 8 more",
      "locations": [
        {
          "city": "Chula Vista",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Rolling Meadows",
          "state": "Illinois"
        },
        {
          "city": "Canton",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07250802"
    },
    {
      "nct_id": "NCT02718495",
      "title": "Study Assessing PTI-428 Safety, Tolerability, and Pharmacokinetics in Subjects With Cystic Fibrosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "PTI-428",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Proteostasis Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2016-07-19",
      "completion_date": "2017-11-28",
      "has_results": false,
      "last_update_posted_date": "2019-03-21",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 20,
      "location_summary": "Stanford, California • Altamonte Springs, Florida • Gainesville, Florida + 16 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Altamonte Springs",
          "state": "Florida"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02718495"
    },
    {
      "nct_id": "NCT05606757",
      "title": "A Study to Evaluate Adverse Events and Effectiveness of OnabotulinumtoxinA in Participants Undergoing Open Abdominal Ventral Hernia Repair for the Achievement of Primary Fascial Closure Without the Use of Component Separation Technique",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ventral Hernia",
        "Abdominal Hernia"
      ],
      "interventions": [
        {
          "name": "BOTOX Dose A",
          "type": "DRUG"
        },
        {
          "name": "Placebo for BOTOX",
          "type": "DRUG"
        },
        {
          "name": "BOTOX Dose B",
          "type": "DRUG"
        },
        {
          "name": "BOTOX Dose C",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2024-05-07",
      "completion_date": "2025-09-26",
      "has_results": false,
      "last_update_posted_date": "2024-05-16",
      "last_synced_at": "2026-10-12T20:19:00.415Z",
      "location_count": 2,
      "location_summary": "Mineola, New York • Charlotte, North Carolina",
      "locations": [
        {
          "city": "Mineola",
          "state": "New York"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05606757"
    }
  ]
}