{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Challenge+Test&page=2",
    "query": {
      "condition": "Challenge Test",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Challenge+Test&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T21:24:15.988Z",
  "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": "NCT01063985",
      "title": "A Comparison of Skin Prick Tests, Clinical Symptoms, and Nasal Challenge Using a New Mouse Extract",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mouse Allergies",
        "Mouse Sensitization"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Vanderbilt University",
      "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": 39,
      "start_date": "2010-05",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2011-07-27",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01063985"
    },
    {
      "nct_id": "NCT02503813",
      "title": "Does Venous pCO2 Increase by 20 mmHg or More During Apnea Challenge Test?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Death"
      ],
      "interventions": [
        {
          "name": "venous blood gas",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "MemorialCare Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Week",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Week and older"
      },
      "enrollment_count": 7,
      "start_date": "2015-07",
      "completion_date": "2017-09",
      "has_results": false,
      "last_update_posted_date": "2022-10-03",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Long Beach, California",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02503813"
    },
    {
      "nct_id": "NCT00590720",
      "title": "A Phase 2A Study to Evaluate the Safety and Effect on Exercise Challenge Testing of MEDI-528 in Adults With Asthma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "MEDI528 50 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PLACEBO",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "MedImmune LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 11,
      "start_date": "2008-03",
      "completion_date": "2009-10",
      "has_results": true,
      "last_update_posted_date": "2014-03-21",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 9,
      "location_summary": "San Diego, California • Denver, Colorado • Waterbury, Connecticut + 6 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Waterbury",
          "state": "Connecticut"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Normal",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00590720"
    },
    {
      "nct_id": "NCT02624505",
      "title": "Pharmacodynamic Bioequivalence of Metered Dose Inhalers of Albuterol Sulfate in Patients With Stable Mild Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Bronchial Asthma"
      ],
      "interventions": [
        {
          "name": "90 mcg Reference Product",
          "type": "DRUG"
        },
        {
          "name": "180 mcg Reference Product",
          "type": "DRUG"
        },
        {
          "name": "90 mcg Test Product",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cipla Ltd.",
      "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": 110,
      "start_date": "2015-12",
      "completion_date": "2016-11",
      "has_results": false,
      "last_update_posted_date": "2019-07-25",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02624505"
    },
    {
      "nct_id": "NCT06154304",
      "title": "BE Study of Albuterol Sulfate Inhalation Aerosol 90 mcg Per Actuation in Patients With Stable Mild Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Bronchial Asthma"
      ],
      "interventions": [
        {
          "name": "Albuterol Sulfate Inhalation Aerosol (90 mcg per actuation)",
          "type": "DRUG"
        },
        {
          "name": "Ventolin HFA 90Mcg/Actuation Inhalation Aerosol_#1",
          "type": "DRUG"
        },
        {
          "name": "Ventolin HFA, 90 Mcg/Inh Inhalation Aerosol_#2",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cipla Ltd.",
      "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": 120,
      "start_date": "2023-12-06",
      "completion_date": "2024-11-29",
      "has_results": false,
      "last_update_posted_date": "2025-07-16",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Medford, Oregon",
      "locations": [
        {
          "city": "Medford",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06154304"
    },
    {
      "nct_id": "NCT07531901",
      "title": "Evaluating the Feasibility and Reliability of Using Handheld Nebulizers to Conduct Cough Sensitivity Testing With Citric Acid",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cough Reflex Sensitivity"
      ],
      "interventions": [
        {
          "name": "Cosmed QuarkSpiro Dosimeter-Controlled Nebulizer",
          "type": "DEVICE"
        },
        {
          "name": "DeVilbiss 45 Handheld Nebulizer",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Montana",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 10,
      "start_date": "2026-07-15",
      "completion_date": "2027-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-07-20",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07531901"
    },
    {
      "nct_id": "NCT07778524",
      "title": "Alpelisib Challenge Test (ACT)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Insulin Resistance",
        "Type 2 Diabetes",
        "Obesity & Overweight",
        "Healthy Adult Participants"
      ],
      "interventions": [
        {
          "name": "Alpelisib 300 mg",
          "type": "DRUG"
        },
        {
          "name": "Alpelisib Challenge Test (ACT): Mixed Meal Tolerance Test (MMTT) after taking alpelisib",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Hyperglycemic clamp",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 15,
      "start_date": "2026-09-02",
      "completion_date": "2028-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07778524"
    },
    {
      "nct_id": "NCT05045495",
      "title": "Adult Pilot Study for Reference Ranges and Optimal Cut-offs for the Sucrose Challenge Test and Sucrose Breath Test",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Sucrase-Isomaltase Deficiency"
      ],
      "interventions": [
        {
          "name": "Sucrose Hydrogen Methane Breath Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "QOL Medical, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 211,
      "start_date": "2021-08-30",
      "completion_date": "2022-02-28",
      "has_results": false,
      "last_update_posted_date": "2022-05-24",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Culver City, California",
      "locations": [
        {
          "city": "Culver City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05045495"
    },
    {
      "nct_id": "NCT02134535",
      "title": "Optimization of the ex Vivo Challenge",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Optimization of Laboratory Procedures"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 73,
      "start_date": "2014-05",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2016-01-27",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02134535"
    },
    {
      "nct_id": "NCT02026609",
      "title": "Glutamine Challenge as Predictor of Hepatic Encephalopathy After Transjugular Intrahepatic Portosystemic Shunt (TIPS)",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractory Ascites",
        "Hepatic Hydrothorax",
        "Hepatic Encephalopathy",
        "Cirrhosis"
      ],
      "interventions": [
        {
          "name": "Oral glutamine challenge",
          "type": "OTHER"
        },
        {
          "name": "Psychometric Tests",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 3,
      "start_date": "2013-05",
      "completion_date": "2015-01-27",
      "has_results": false,
      "last_update_posted_date": "2017-04-17",
      "last_synced_at": "2026-09-27T21:24:15.988Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02026609"
    }
  ]
}