{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=5-HT3+antagonist&page=2",
    "query": {
      "intervention": "5-HT3 antagonist",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 25,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=5-HT3+antagonist&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=5-HT3+antagonist&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-19T22:33:39.731Z",
  "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": "NCT00655850",
      "title": "Lower Dose Chemotherapy Given More Frequent With Avastin to Treat Advanced Non-Squamous Non-Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-Small Cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Avastin",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 39,
      "start_date": "2008-03",
      "completion_date": "2016-09",
      "has_results": true,
      "last_update_posted_date": "2017-07-17",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00655850"
    },
    {
      "nct_id": "NCT06925737",
      "title": "A Clinical Study of Ifinatamab Deruxtecan (I-DXd) in People With Metastatic Prostate Cancer (MK-2400-001)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Prostate Cancer",
        "Prostatic Neoplasms"
      ],
      "interventions": [
        {
          "name": "Ifinatamab deruxtecan",
          "type": "DRUG"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Rescue Medication",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 1440,
      "start_date": "2025-05-13",
      "completion_date": "2031-01-06",
      "has_results": false,
      "last_update_posted_date": "2026-10-15",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 55,
      "location_summary": "Phoenix, Arizona • Clovis, California • Duarte, California + 43 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Clovis",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06925737"
    },
    {
      "nct_id": "NCT07405151",
      "title": "A Clinical Trial of Ifinatamab Deruxtecan in People With Advanced Esophageal Cancer (MK-3475-06F)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Oesophageal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "I-DXd",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rescue Medication",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2026-03-27",
      "completion_date": "2028-06-12",
      "has_results": false,
      "last_update_posted_date": "2026-10-02",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07405151"
    },
    {
      "nct_id": "NCT06445972",
      "title": "Substudy 06D: Combination Therapies in Second Line (2L) Gastroesophageal Adenocarcinoma (MK-3475-06D/Keymaker-U06)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Gastroesophageal Junction",
        "Gastroesophageal Adenocarcinoma",
        "Esophageal Neoplasms",
        "Esophageal Cancer"
      ],
      "interventions": [
        {
          "name": "Ramucirumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Sacituzumab Tirumotecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rescue Medications",
          "type": "DRUG"
        },
        {
          "name": "HER3-DXd",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 210,
      "start_date": "2024-08-07",
      "completion_date": "2030-08-08",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 8,
      "location_summary": "Tucson, Arizona • Los Angeles, California • Louisville, Kentucky + 5 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        },
        {
          "city": "East Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06445972"
    },
    {
      "nct_id": "NCT04054193",
      "title": "Safety of a Three-Day Fosaprepitant Regimen for the Prevention of Chemotherapy-Induced Nausea and Vomiting in Pediatric Participants (MK-0517-045)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Chemotherapy-induced Nausea and Vomiting"
      ],
      "interventions": [
        {
          "name": "Fosaprepitant Dimeglumine",
          "type": "DRUG"
        },
        {
          "name": "5-HT3 antagonist",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Months to 17 Years"
      },
      "enrollment_count": 103,
      "start_date": "2019-09-09",
      "completion_date": "2021-02-11",
      "has_results": true,
      "last_update_posted_date": "2025-01-16",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 5,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Chicago, Illinois + 2 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04054193"
    },
    {
      "nct_id": "NCT06780085",
      "title": "A Study of Investigational Agents in Participants With Previously Treated Stage IV Nonsquamous Non-small Cell Lung Cancer (NSCLC) (MK-3475-01H/KEYMAKER-U01)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Carcinoma, Non-Small-Cell Lung"
      ],
      "interventions": [
        {
          "name": "Raludotatug Deruxtecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ifinatamab Deruxtecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Docetetaxel",
          "type": "DRUG"
        },
        {
          "name": "5-hydroxytryptamine subtype 3 receptor antagonist",
          "type": "DRUG"
        },
        {
          "name": "Neurokinin-1 receptor antagonist",
          "type": "DRUG"
        },
        {
          "name": "Corticosteroid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 96,
      "start_date": "2025-05-13",
      "completion_date": "2032-03-12",
      "has_results": false,
      "last_update_posted_date": "2026-10-01",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 3,
      "location_summary": "Lexington, Kentucky • Baltimore, Maryland • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06780085"
    },
    {
      "nct_id": "NCT06863272",
      "title": "A Clinical Study of Ifinatamab Deruxtecan Based Treatment Combinations or as Monotherapy to Treat Metastatic Castrate Resistant Prostate Cancer (mCRPC) (MK-2400-01A/IDeate-Prostate02)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Castration-Resistant Prostatic Cancer",
        "Metastasis"
      ],
      "interventions": [
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Ifinatamab Deruxtecan",
          "type": "DRUG"
        },
        {
          "name": "Opevesostat",
          "type": "DRUG"
        },
        {
          "name": "Abiraterone",
          "type": "DRUG"
        },
        {
          "name": "Enzalutamide",
          "type": "DRUG"
        },
        {
          "name": "Rescue Medication",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 360,
      "start_date": "2025-07-03",
      "completion_date": "2031-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • Orange, California • San Francisco, California + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06863272"
    },
    {
      "nct_id": "NCT06780111",
      "title": "Substudy 06E: Umbrella Study of Combination Therapies in Esophageal Cancer (MK-3475-06E/KEYMAKER-U06)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Esophageal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "I-DXd",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Leucovorin",
          "type": "DRUG"
        },
        {
          "name": "Levoleucovorin",
          "type": "DRUG"
        },
        {
          "name": "5-Fluorouracil (5-FU)",
          "type": "DRUG"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "Sacituzumab tirumotecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rescue Medication",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 298,
      "start_date": "2025-07-30",
      "completion_date": "2032-01-04",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06780111"
    },
    {
      "nct_id": "NCT06843447",
      "title": "A Clinical Study of Raludotatug Deruxtecan in People With Ovarian Cancer (MK-5909-003).",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Ovarian Cancer Recurrent"
      ],
      "interventions": [
        {
          "name": "Raludotatug Deruxtecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rescue Medication",
          "type": "DRUG"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Pegylated liposomal doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "MK-2010",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 605,
      "start_date": "2025-04-15",
      "completion_date": "2031-02-07",
      "has_results": false,
      "last_update_posted_date": "2026-10-19",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 10,
      "location_summary": "New Haven, Connecticut • Louisville, Kentucky • Shreveport, Louisiana + 7 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06843447"
    },
    {
      "nct_id": "NCT04216329",
      "title": "Selinexor (KPT-330) in Combination With Temozolomide and Radiation Therapy in Patients With Newly Diagnosed Glioblastoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Gliosarcoma",
        "Newly Diagnosed",
        "Glioblastoma"
      ],
      "interventions": [
        {
          "name": "Selinexor",
          "type": "DRUG"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        },
        {
          "name": "Generic Radiation therapy (RT)",
          "type": "RADIATION"
        },
        {
          "name": "Selective serotonin receptor (5-HT3) antagonists",
          "type": "OTHER"
        },
        {
          "name": "Olanzapine",
          "type": "OTHER"
        },
        {
          "name": "Salt tablets",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Anti-diarrheal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2020-07-07",
      "completion_date": "2028-07-30",
      "has_results": true,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-10-19T22:33:39.731Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04216329"
    }
  ]
}