{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=HCTZ+monotherapy",
    "query": {
      "intervention": "HCTZ monotherapy"
    },
    "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?intervention=HCTZ+monotherapy&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T16:03:17.033Z",
  "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": "NCT00273299",
      "title": "Valsartan/Hydrochlorothiazide Combination in the Treatment of Severe Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "valsartan plus hydrochlorothiazide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 607,
      "start_date": "2005-11",
      "completion_date": "2006-07",
      "has_results": false,
      "last_update_posted_date": "2011-11-08",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00273299"
    },
    {
      "nct_id": "NCT00277472",
      "title": "Efficacy and Safety of Valsartan/Hydrochlorothiazide Combination Therapy in Patients With Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Valsartan/Hydrochlorothiazide",
          "type": "DRUG"
        },
        {
          "name": "HCTZ",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2005-11",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2011-06-07",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00277472"
    },
    {
      "nct_id": "NCT00926289",
      "title": "Telmisartan 80mg Plus Hydrochlorothiazide 25mg First Line in Moderate or Severe Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Telmisartan",
          "type": "DRUG"
        },
        {
          "name": "Hydrochlorothiazide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 894,
      "start_date": "2009-06",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2014-06-27",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 18,
      "location_summary": "Athens, Alabama • Mobile, Alabama • Lomita, California + 14 more",
      "locations": [
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Lomita",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00926289"
    },
    {
      "nct_id": "NCT00142584",
      "title": "Evaluation of the Long-term Safety and Tolerability of Metoprolol Versus Nebivolol in Patients With Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Nebivolol (NEB)",
          "type": "DRUG"
        },
        {
          "name": "Metoprolol (MET)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mylan Bertek Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 336,
      "start_date": "2005-08",
      "completion_date": "2008-03",
      "has_results": true,
      "last_update_posted_date": "2022-03-15",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "Morgantown, West Virginia",
      "locations": [
        {
          "city": "Morgantown",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00142584"
    },
    {
      "nct_id": "NCT00387517",
      "title": "Safety/Efficacy of Combo Therapy With Aliskiren & Hydrochlorothiazide vs Therapy With Hydrochlorothiazide Alone in Patients With Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Aliskiren/HCTZ",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 726,
      "start_date": "2006-10",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2017-02-07",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00387517"
    },
    {
      "nct_id": "NCT00791258",
      "title": "A Dose Escalation Study of a Combination Antihypertensive Drug in the Treatment of Various Groups of Patients Who do Not Respond to Single Drug Treatment of Their High Blood Pressure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "amlodipine and olmesartan medoxomil tablets",
          "type": "DRUG"
        },
        {
          "name": "hydrochlorothiazide tablets",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Daiichi Sankyo",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 999,
      "start_date": "2008-11",
      "completion_date": "2009-09",
      "has_results": true,
      "last_update_posted_date": "2019-01-09",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 72,
      "location_summary": "Birmingham, Alabama • Green Valley, Arizona • Mesa, Arizona + 69 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Green Valley",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Sierra Vista",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00791258"
    },
    {
      "nct_id": "NCT00280540",
      "title": "Efficacy and Safety of Valsartan/Hydrochlorothiazide Combination Therapy in Patients With Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Valsartan/Hydrochlorothiazide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 648,
      "start_date": "2005-12",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2010-11-09",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00280540"
    },
    {
      "nct_id": "NCT00797316",
      "title": "Aliskiren Plus HCTZ Compared to Aliskiren in Metabolic Syndrome Patients With Stage 2 Systolic Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Aliskiren",
          "type": "DRUG"
        },
        {
          "name": "Hydrochlorothiazide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 532,
      "start_date": "2008-11",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2011-03-11",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00797316"
    },
    {
      "nct_id": "NCT00902304",
      "title": "Valsartan Intensified Primary Care Reduction of Blood Pressure Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Valsartan and hydrochlorothiazide (HCTZ) - monotherapy",
          "type": "DRUG"
        },
        {
          "name": "Valsartan and amlodipine",
          "type": "DRUG"
        },
        {
          "name": "Usual care",
          "type": "DRUG"
        },
        {
          "name": "Valsartan",
          "type": "DRUG"
        },
        {
          "name": "Valsartan and hydrochlorothiazide (HCTZ) - combination arm",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2337,
      "start_date": "2009-07",
      "completion_date": "2011-07",
      "has_results": true,
      "last_update_posted_date": "2012-12-04",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00902304"
    },
    {
      "nct_id": "NCT00386139",
      "title": "A Safety and Efficacy Trial of the Combination of Aliskiren / Hydrochlorothiazide (HCTZ)(300/12.5 mg and 300/25 mg) Compared to Aliskiren 300 mg in Hypertensive Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Aliskiren/HCTZ",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 881,
      "start_date": "2006-09",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2017-02-07",
      "last_synced_at": "2026-09-04T16:03:17.033Z",
      "location_count": 1,
      "location_summary": "East Hanover, New Jersey",
      "locations": [
        {
          "city": "East Hanover",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00386139"
    }
  ]
}