{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=24+hour+pH+testing",
    "query": {
      "intervention": "24 hour pH testing"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=24+hour+pH+testing&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T16:01:38.918Z",
  "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": "NCT01566383",
      "title": "Assessing Normal Multichannel Intraluminal Impedance (MII)-pH Parameters for Today's Population",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Identify Normal MII-pH Parameters"
      ],
      "interventions": [
        {
          "name": "24-hr pH monitoring",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "33 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "33 Years to 65 Years"
      },
      "enrollment_count": 19,
      "start_date": "2012-03",
      "completion_date": "2013-08-27",
      "has_results": false,
      "last_update_posted_date": "2017-02-23",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 2,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01566383"
    },
    {
      "nct_id": "NCT06475976",
      "title": "Multidimensional Phenotype Classification in Grade 3 Bronchopulmonary Dysplasia",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bronchopulmonary Dysplasia"
      ],
      "interventions": [
        {
          "name": "Chest computed tomography (CT) with angiography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Bronchoscopy with bronchoalveolar lavage",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Echocardiography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "24 hour esophageal pH (\"potential of hydrogen\") - multichannel intraluminal impedance (MII) monitoring (reflux testing)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "1 Year",
        "sex": "ALL",
        "summary": "1 Month to 1 Year"
      },
      "enrollment_count": 130,
      "start_date": "2023-12-05",
      "completion_date": "2029-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-28",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06475976"
    },
    {
      "nct_id": "NCT01880892",
      "title": "Laryngopharyngeal Reflux Before and After Cricopharyngeal Myotomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Laryngopharyngeal Reflux",
        "Zenker's Diverticulum"
      ],
      "interventions": [
        {
          "name": "Cricopharyngeal myotomy",
          "type": "PROCEDURE"
        },
        {
          "name": "PH probe Testing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2013-06",
      "completion_date": "2018-01-02",
      "has_results": false,
      "last_update_posted_date": "2022-07-26",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01880892"
    },
    {
      "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": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07788742"
    },
    {
      "nct_id": "NCT00335283",
      "title": "Efficacy of Lansoprazole in Chronic Post Nasal Drip",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Larynx Disease"
      ],
      "interventions": [
        {
          "name": "Lansoprazole Tablet",
          "type": "DRUG"
        },
        {
          "name": "PH and impedence testing",
          "type": "PROCEDURE"
        },
        {
          "name": "manometry",
          "type": "PROCEDURE"
        },
        {
          "name": "lansoprazole",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2006-08",
      "completion_date": "2008-12",
      "has_results": true,
      "last_update_posted_date": "2012-08-21",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00335283"
    },
    {
      "nct_id": "NCT05659147",
      "title": "Imaging Biomarkers of Pancreatic Function and Disease",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pancreatitis",
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Research MRI without administration of intravenous secretin",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Research MRI with administration of intravenous secretin",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Genetic Sequencing",
          "type": "GENETIC"
        },
        {
          "name": "Blood Tests",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Stool Tests",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Survey Completion",
          "type": "OTHER"
        },
        {
          "name": "Endoscopic pancreatic function tests (ePFTs)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Secretin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "GENETIC",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "5 Years to 21 Years"
      },
      "enrollment_count": 195,
      "start_date": "2023-01-18",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05659147"
    },
    {
      "nct_id": "NCT04195438",
      "title": "Postoperative Heme Oxygenase Induction and Carbon Monoxide Production as a Novel Method to Assess Hepatic Regeneration and Predict Hepatic Related Morbidity After Partial Hepatectomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Liver Cancer"
      ],
      "interventions": [
        {
          "name": "CO Testing Pre/Post Hepatic Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "ABG Testing Pre/Post Hepatic Resection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "CT Evaluations",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2014-05-07",
      "completion_date": "2024-03-26",
      "has_results": true,
      "last_update_posted_date": "2024-06-21",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Glen Burnie, Maryland",
      "locations": [
        {
          "city": "Glen Burnie",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04195438"
    },
    {
      "nct_id": "NCT04743661",
      "title": "131I-Omburtamab, in Recurrent Medulloblastoma and Ependymoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Medulloblastoma",
        "Recurrent Ependymoma"
      ],
      "interventions": [
        {
          "name": "Irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        },
        {
          "name": "Bevacizumab",
          "type": "DRUG"
        },
        {
          "name": "Omburtamab I-131",
          "type": "DRUG"
        },
        {
          "name": "Liothyronine",
          "type": "DRUG"
        },
        {
          "name": "SSKI",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Antipyretic",
          "type": "DRUG"
        },
        {
          "name": "Antihistamine",
          "type": "DRUG"
        },
        {
          "name": "anti-emetics",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pediatric Brain Tumor Consortium",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 62,
      "start_date": "2022-04-04",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-28",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • New York, New York • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04743661"
    },
    {
      "nct_id": "NCT06335537",
      "title": "Impact of Sodium Bicarbonate on 24-hour Urine Parameters in Hypocitriuric and Uric Acid Stone Formers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Uric Acid Stones"
      ],
      "interventions": [
        {
          "name": "Potassium citrate",
          "type": "DRUG"
        },
        {
          "name": "Sodium bicarbonate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 100,
      "start_date": "2025-05-01",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2025-06-24",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Orange, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06335537"
    },
    {
      "nct_id": "NCT00523367",
      "title": "COPD Patients Diagnosed With GERD,COPD Exacerbations After Treatment With High Dose PPI",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gastroesophageal Reflux",
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "24 hour pH testing",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2007-08",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2013-01-18",
      "last_synced_at": "2026-09-22T16:01:38.918Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00523367"
    }
  ]
}