{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=theophylline&page=2",
    "query": {
      "intervention": "theophylline",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 38,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=theophylline&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=theophylline&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T04:21:16.862Z",
  "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": "NCT01336140",
      "title": "Attenuation of the Side Effect Profile of Regadenoson: Study With Aminophylline in Patients With Severe Kidney Disease Undergoing Myocardial Perfusion Imaging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Patients With Severe Chronic Kidney Disease Being Evaluated With Nuclear Stress Testing of the Heart Using the Stress Agent Regadenoson"
      ],
      "interventions": [
        {
          "name": "Aminophylline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2011-06",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2023-01-26",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01336140"
    },
    {
      "nct_id": "NCT03718403",
      "title": "Effect of Theophylline in Pseudohypoparathyroidism",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "PHP Ia",
        "PHP IB",
        "Php1C"
      ],
      "interventions": [
        {
          "name": "Theophylline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "5 Years to 21 Years"
      },
      "enrollment_count": 100,
      "start_date": "2019-11-11",
      "completion_date": "2032-04-10",
      "has_results": false,
      "last_update_posted_date": "2022-07-22",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03718403"
    },
    {
      "nct_id": "NCT01250496",
      "title": "Study With Aminophylline to Attenuate of the Side Effects of Regadenoson",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Patients Being Assessed With Nuclear Stress Testing of the Heart Using the Stress Agent Regadenoson, Lexiscan"
      ],
      "interventions": [
        {
          "name": "Aminophylline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 248,
      "start_date": "2010-11",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2023-03-13",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01250496"
    },
    {
      "nct_id": "NCT01696214",
      "title": "A Pilot Study to Determine the Feasibility and Utility of Implementing of the Full Scale TOM Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Fluticasone 250 mg/salmeterol 50 mg",
          "type": "DRUG"
        },
        {
          "name": "Montelukast 10mg",
          "type": "DRUG"
        },
        {
          "name": "Theophylline 400 mg",
          "type": "DRUG"
        },
        {
          "name": "ipratropium",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 20,
      "start_date": "2012-10",
      "completion_date": "2016-11",
      "has_results": true,
      "last_update_posted_date": "2019-01-23",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01696214"
    },
    {
      "nct_id": "NCT00413166",
      "title": "All-trans Retinoic Acid, and Arsenic +/- Idarubicin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Promyelocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "All-Trans Retinoic Acid (ATRA)",
          "type": "DRUG"
        },
        {
          "name": "Arsenic Trioxide (ATO)",
          "type": "DRUG"
        },
        {
          "name": "Idarubicin",
          "type": "DRUG"
        },
        {
          "name": "Gemtuzumab Ozogamicin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 78,
      "start_date": "2006-12",
      "completion_date": "2016-02",
      "has_results": true,
      "last_update_posted_date": "2019-05-07",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00413166"
    },
    {
      "nct_id": "NCT00003808",
      "title": "Theophylline in Treating Patients With In Situ, Stage I, or Stage II Chronic Lymphocytic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "theophylline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eastern Cooperative Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": null,
      "start_date": "1999-08-11",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2023-06-22",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 68,
      "location_summary": "Scottsdale, Arizona • Los Angeles, California • Palo Alto, California + 51 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003808"
    },
    {
      "nct_id": "NCT01794078",
      "title": "A Study to Test the Safety of Combined Dosing With Aminophylline and Ambrisentan in Exercising Healthy Human Volunteers at Simulated High Altitude",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acute Mountain Sickness and Fatigue"
      ],
      "interventions": [
        {
          "name": "Aminophylline 400 mg",
          "type": "DRUG"
        },
        {
          "name": "Ambrisentan 5 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Robert J Noveck, M.D.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 92,
      "start_date": "2013-09",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-11-13",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01794078"
    },
    {
      "nct_id": "NCT01759862",
      "title": "Perioperative Aminophylline to Improve Early Kidney Function After a Kidney Transplant",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Function of Renal Transplant"
      ],
      "interventions": [
        {
          "name": "Aminophylline",
          "type": "DRUG"
        },
        {
          "name": "Theophylline drug levels",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "1 Year to 21 Years"
      },
      "enrollment_count": 50,
      "start_date": "2012-11",
      "completion_date": "2017-07-25",
      "has_results": true,
      "last_update_posted_date": "2019-03-05",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01759862"
    },
    {
      "nct_id": "NCT01530464",
      "title": "The Safety Evaluation of Aminophylline and Ambrisentan When Administered Orally Alone and in Combination to Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "High Altitude Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Aminophylline",
          "type": "DRUG"
        },
        {
          "name": "Ambrisentan",
          "type": "DRUG"
        },
        {
          "name": "Aminophylline plus ambrisentan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thies Schroeder",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 18,
      "start_date": "2012-02",
      "completion_date": "2012-04",
      "has_results": true,
      "last_update_posted_date": "2014-01-16",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01530464"
    },
    {
      "nct_id": "NCT01702025",
      "title": "Rapid Acclimatization to Hypoxia at Altitude",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Physiological Function in Low Oxygen Environment"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Aminophylline",
          "type": "DRUG"
        },
        {
          "name": "Methazolamide",
          "type": "DRUG"
        },
        {
          "name": "Aminophylline+Methazolamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Colorado State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 41,
      "start_date": "2012-06",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2014-10-24",
      "last_synced_at": "2026-09-30T04:21:16.862Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01702025"
    }
  ]
}