{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Phathom+Pharmaceuticals%2C+Inc.",
    "query": {
      "sponsor": "Phathom Pharmaceuticals, Inc."
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 15,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Phathom+Pharmaceuticals%2C+Inc.&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T07:31:29.841Z",
  "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": "NCT05343364",
      "title": "A Study to Evaluate the Pharmacokinetics, Pharmacodynamics and Safety of Vonoprazan in Adolescents With Symptomatic Gastroesophageal Reflux Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Gastroesophageal Reflux"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 24,
      "start_date": "2022-05-09",
      "completion_date": "2023-06-13",
      "has_results": true,
      "last_update_posted_date": "2025-04-23",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 10,
      "location_summary": "Mobile, Alabama • Little Rock, Arkansas • Anaheim, California + 7 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Morrow",
          "state": "Georgia"
        },
        {
          "city": "Marrero",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05343364"
    },
    {
      "nct_id": "NCT06660342",
      "title": "A Study of the Safety of Vonoprazan Exposure in Pregnant Women and Their Offspring",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Erosive Esophagitis",
        "Heartburn",
        "Symptomatic Non-erosive Gastroesophageal Reflux Disease",
        "Helicobacter Pylori Infection"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 50 Years · Female only"
      },
      "enrollment_count": 728,
      "start_date": "2025-05-15",
      "completion_date": "2034-09",
      "has_results": false,
      "last_update_posted_date": "2026-09-18",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 1,
      "location_summary": "Wilmington, North Carolina",
      "locations": [
        {
          "city": "Wilmington",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06660342"
    },
    {
      "nct_id": "NCT06391177",
      "title": "A Study to Evaluate Vonoprazan Concentrations in Breast Milk of Healthy Lactating Women Receiving Vonoprazan 20 mg Once Daily or Vonoprazan 20 mg Twice Daily",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Erosive Esophagitis",
        "Heartburn",
        "Symptomatic Nonerosive Gasroesophageal Reflux Disease",
        "Helicobacter Pylori Infection"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 15,
      "start_date": "2024-05-07",
      "completion_date": "2024-09-19",
      "has_results": true,
      "last_update_posted_date": "2025-03-25",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 1,
      "location_summary": "Las Vegas, Nevada",
      "locations": [
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06391177"
    },
    {
      "nct_id": "NCT04545944",
      "title": "Evaluation of Effect of Vonoprazan on Midazolam Pharmacokinetics in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        },
        {
          "name": "Midazolam",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "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": 20,
      "start_date": "2020-09-15",
      "completion_date": "2020-11-25",
      "has_results": true,
      "last_update_posted_date": "2023-03-17",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04545944"
    },
    {
      "nct_id": "NCT04167670",
      "title": "Efficacy and Safety of Vonoprazan Compared to Lansoprazole in Participants With Helicobacter Pylori Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Helicobacter Pylori Infection"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        },
        {
          "name": "Amoxicillin",
          "type": "DRUG"
        },
        {
          "name": "Clarithromycin",
          "type": "DRUG"
        },
        {
          "name": "Lansoprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1046,
      "start_date": "2019-12-10",
      "completion_date": "2021-03-18",
      "has_results": true,
      "last_update_posted_date": "2022-04-05",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 106,
      "location_summary": "Anniston, Alabama • Athens, Alabama • Birmingham, Alabama + 84 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04167670"
    },
    {
      "nct_id": "NCT04124926",
      "title": "Efficacy and Safety of Vonoprazan Compared to Lansoprazole in Participants With Erosive Esophagitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Erosive Esophagitis"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        },
        {
          "name": "Lansoprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1027,
      "start_date": "2019-10-28",
      "completion_date": "2021-08-24",
      "has_results": true,
      "last_update_posted_date": "2022-07-29",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 109,
      "location_summary": "Anniston, Alabama • Athens, Alabama • Birmingham, Alabama + 88 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04124926"
    },
    {
      "nct_id": "NCT04799158",
      "title": "A Study to Evaluate the Efficacy and Safety of Vonoprazan Compared to Placebo in Participants With Symptomatic Non-Erosive Gastroesophageal Reflux Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-Erosive Gastro-Esophageal Reflux Disease",
        "Heartburn"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 458,
      "start_date": "2021-03-25",
      "completion_date": "2022-01-17",
      "has_results": true,
      "last_update_posted_date": "2023-01-04",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 63,
      "location_summary": "Anniston, Alabama • Athens, Alabama • Huntsville, Alabama + 55 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04799158"
    },
    {
      "nct_id": "NCT04729101",
      "title": "Study to Evaluate the Pharmacokinetics, Pharmacodynamics, and Safety of Vonoprazan and Lansoprazole in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        },
        {
          "name": "Lansoprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 44,
      "start_date": "2021-01-28",
      "completion_date": "2021-06-26",
      "has_results": true,
      "last_update_posted_date": "2023-03-31",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04729101"
    },
    {
      "nct_id": "NCT05195528",
      "title": "A Study to Evaluate the Efficacy and Safety of Vonoprazan Compared to Placebo for Relief of Heartburn in Participants With Symptomatic Non-Erosive Gastroesophageal Reflux Disease (NERD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Non-Erosive Gastro-Esophageal Reflux Disease",
        "Heartburn"
      ],
      "interventions": [
        {
          "name": "Vonoprazan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phathom Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 776,
      "start_date": "2022-01-17",
      "completion_date": "2023-05-17",
      "has_results": true,
      "last_update_posted_date": "2023-12-29",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 108,
      "location_summary": "Athens, Alabama • Cullman, Alabama • Huntsville, Alabama + 94 more",
      "locations": [
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05195528"
    },
    {
      "nct_id": "NCT07788742",
      "title": "Efficacy of Potassium-Competitive Acid Blockers in Barrett's Esophagus (PCAB BE Study)",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Barrett Esophagus"
      ],
      "interventions": [
        {
          "name": "Potassium-Competitive Acid Blockers (PCABs)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2026-08-31",
      "completion_date": "2029-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-10-06T07:31:29.841Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07788742"
    }
  ]
}