{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ondansetron+placebo&page=3",
    "query": {
      "intervention": "Ondansetron placebo",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 80,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ondansetron+placebo&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ondansetron+placebo&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-03T19:23:02.053Z",
  "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": "NCT06297499",
      "title": "Ondansetron Use for Preventing Pruritus in Patients Undergoing Cesarean Section",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pruritus Caused by Drug"
      ],
      "interventions": [
        {
          "name": "Ondansetron 8mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wayne State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 66,
      "start_date": "2024-08-22",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-03-28",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06297499"
    },
    {
      "nct_id": "NCT03973047",
      "title": "Study to Evaluate Rate of Nausea in Healthy Premenopausal Female Subjects Treated With Single Dose of Bremelanotide Alone or With Zofran",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Nausea"
      ],
      "interventions": [
        {
          "name": "Bremelanotide",
          "type": "DRUG"
        },
        {
          "name": "Zofran",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AMAG Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 228,
      "start_date": "2019-06-17",
      "completion_date": "2019-07-20",
      "has_results": false,
      "last_update_posted_date": "2022-04-04",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03973047"
    },
    {
      "nct_id": "NCT01377662",
      "title": "PHASE IIA: Trial of a Novel Ondansetron Formulation (OND-PR002) and Immediate-Release Methylphenidate (Ritalin®)(OND003IND)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Methamphetamine Dependence",
        "Cocaine Dependence"
      ],
      "interventions": [
        {
          "name": "OND-PR002 and MPh-IR",
          "type": "DRUG"
        },
        {
          "name": "Placebo: Two dextrose capsules for Ond-PR002 and MPh-IR",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Tong Lee",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 30,
      "start_date": "2011-08",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2014-10-07",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 3,
      "location_summary": "Durham, North Carolina • Raleigh, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01377662"
    },
    {
      "nct_id": "NCT02542384",
      "title": "A Study Evaluating the Overall Pain Relief and Safety of Intravenous (IV) CR845 in Patients Undergoing Abdominal Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Post Abdominal Surgery Pain"
      ],
      "interventions": [
        {
          "name": "CR845 IV 1 mcg/kg",
          "type": "DRUG"
        },
        {
          "name": "CR845 IV 0.5 mcg/kg",
          "type": "DRUG"
        },
        {
          "name": "Placebo IV",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cara Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 451,
      "start_date": "2015-09",
      "completion_date": "2018-06",
      "has_results": false,
      "last_update_posted_date": "2019-05-31",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 23,
      "location_summary": "Sheffield, Alabama • New Haven, Connecticut • Bradenton, Florida + 20 more",
      "locations": [
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Bradenton",
          "state": "Florida"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02542384"
    },
    {
      "nct_id": "NCT05021263",
      "title": "Does IV Magnesium Improve Quality of Recovery With ERAS Protocols in Laparoscopic Colorectal Surgery?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Colo-rectal Cancer",
        "Anesthesia"
      ],
      "interventions": [
        {
          "name": "IV Medications",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 90,
      "start_date": "2022-05-27",
      "completion_date": "2023-12-29",
      "has_results": false,
      "last_update_posted_date": "2024-04-09",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05021263"
    },
    {
      "nct_id": "NCT00642512",
      "title": "Dronabinol Versus Standard Ondansetron Antiemetic Therapy in Preventing Delayed-Onset Chemotherapy-Induced Nausea and Vomiting",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chemotherapy Induced Nausea and Vomiting"
      ],
      "interventions": [
        {
          "name": "dronabinol",
          "type": "DRUG"
        },
        {
          "name": "ondansetron",
          "type": "DRUG"
        },
        {
          "name": "dronabinol/ondansetron",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Solvay Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2003-07",
      "completion_date": "2004-07",
      "has_results": false,
      "last_update_posted_date": "2008-04-03",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 43,
      "location_summary": "Tucson, Arizona • Anaheim, California • Fountain Valley, California + 37 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Greenbrae",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00642512"
    },
    {
      "nct_id": "NCT02460341",
      "title": "The Effects of Ondansetron on Brain Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain Function",
        "Healthy Adults"
      ],
      "interventions": [
        {
          "name": "ondansetron",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 54,
      "start_date": "2015-08",
      "completion_date": "2017-02-03",
      "has_results": false,
      "last_update_posted_date": "2017-04-11",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02460341"
    },
    {
      "nct_id": "NCT00699894",
      "title": "Aprepitant PO vs Ondansetron IV for Prevention of Postoperative Nausea and Vomiting",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Nausea and Vomiting"
      ],
      "interventions": [
        {
          "name": "aprepitant 40 mg",
          "type": "DRUG"
        },
        {
          "name": "ondansetron 4 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "25 Years",
        "sex": "MALE",
        "summary": "15 Years to 25 Years · Male only"
      },
      "enrollment_count": 0,
      "start_date": "2008-06",
      "completion_date": "2008-09",
      "has_results": false,
      "last_update_posted_date": "2013-08-12",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 1,
      "location_summary": "New Hyde Park, New York",
      "locations": [
        {
          "city": "New Hyde Park",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00699894"
    },
    {
      "nct_id": "NCT05098067",
      "title": "Capsaicin Cream as an Adjunctive Therapy for Nausea and Vomiting of Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hyperemesis Gravidarum",
        "Nausea Gravidarum",
        "Vomiting of Pregnancy"
      ],
      "interventions": [
        {
          "name": "Capsaicin Topical Cream",
          "type": "DRUG"
        },
        {
          "name": "Metoclopramide",
          "type": "DRUG"
        },
        {
          "name": "Ondansetron",
          "type": "DRUG"
        },
        {
          "name": "Lactated Ringers, Intravenous",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Women and Infants Hospital of Rhode Island",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2022-05-24",
      "completion_date": "2023-03-01",
      "has_results": true,
      "last_update_posted_date": "2024-02-07",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05098067"
    },
    {
      "nct_id": "NCT01346267",
      "title": "Acupressure in Controlling Nausea in Young Patients Receiving Highly Emetogenic Chemotherapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Central Nervous System Tumor, Pediatric",
        "Chemotherapy-induced Nausea and Vomiting",
        "Unspecified Childhood Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "Real Acupressure Band",
          "type": "PROCEDURE"
        },
        {
          "name": "Placebo Acupressure Band",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "4 Years to 18 Years"
      },
      "enrollment_count": 187,
      "start_date": "2011-05",
      "completion_date": "2016-05",
      "has_results": true,
      "last_update_posted_date": "2021-08-18",
      "last_synced_at": "2026-10-03T19:23:02.053Z",
      "location_count": 24,
      "location_summary": "Long Beach, California • Los Angeles, California • Hartford, Connecticut + 20 more",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01346267"
    }
  ]
}