{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Primary+Hypothyroidism.",
    "query": {
      "condition": "Primary Hypothyroidism."
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 11,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Primary+Hypothyroidism.&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T05:15:30.861Z",
  "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": "NCT00206375",
      "title": "Growth Hormone and GnRH Agonist in Adolescents With Acquired Hypothyroidism",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "Growth hormone",
          "type": "DRUG"
        },
        {
          "name": "Growth hormone treatment and puberty",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "8 Years to 17 Years"
      },
      "enrollment_count": 16,
      "start_date": "2003-05",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2020-10-30",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00206375"
    },
    {
      "nct_id": "NCT02317926",
      "title": "Desiccated Thyroid Extract Versus Synthetic T3/T4 Combination (ThyrolarTM) Versus L-T4 Alone in the Therapy of Primary Hypothyroidism With Special Attention to the Gene Polymorphism",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "Levothyroxine",
          "type": "DRUG"
        },
        {
          "name": "Levothyroxine Plus Liothyronine",
          "type": "DRUG"
        },
        {
          "name": "Desiccated Thyroid Extract",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Walter Reed National Military Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 81,
      "start_date": "2015-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-05-06",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 1,
      "location_summary": "Besthesda, Maryland",
      "locations": [
        {
          "city": "Besthesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02317926"
    },
    {
      "nct_id": "NCT05412979",
      "title": "A Study Evaluating the Safety and Efficacy of Hormone Replacement Therapy With ST-1891 Compared to Levothyroxine in Patients With Primary Hypothyroidism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "ST-1891",
          "type": "DRUG"
        },
        {
          "name": "Levothyroxine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sention Therapeutics, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 490,
      "start_date": "2022-04-29",
      "completion_date": "2023-10-04",
      "has_results": false,
      "last_update_posted_date": "2024-08-26",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 39,
      "location_summary": "Greenbrae, California • Newhall, California • Denver, Colorado + 35 more",
      "locations": [
        {
          "city": "Greenbrae",
          "state": "California"
        },
        {
          "city": "Newhall",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05412979"
    },
    {
      "nct_id": "NCT07424183",
      "title": "T4/T3 Therapy in Hypothyroidism",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypothyroidism Primary"
      ],
      "interventions": [
        {
          "name": "Liothyronine (L-T3)",
          "type": "DRUG"
        },
        {
          "name": "Levothyroxine Sodium (LT4) Tablets",
          "type": "DRUG"
        },
        {
          "name": "Liothyronine (LT3) placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 60,
      "start_date": "2026-06",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-04-21",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07424183"
    },
    {
      "nct_id": "NCT00230802",
      "title": "Thyroid Hormone Dose Adjustment in Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy",
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "Anticipatory dose increase of levothyroxine",
          "type": "DRUG"
        },
        {
          "name": "levothyroxine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 48,
      "start_date": "2005-07",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2016-12-23",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00230802"
    },
    {
      "nct_id": "NCT06669949",
      "title": "Natural History of Sphingosine Phosphate Lyase Insufficiency Syndrome (SPLIS)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sphingosine Phosphate Lyase Insufficiency Syndrome (SPLIS)"
      ],
      "interventions": [
        {
          "name": "no intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 28,
      "start_date": "2025-04-22",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-05-13",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06669949"
    },
    {
      "nct_id": "NCT06583395",
      "title": "Quest to Analyze One Thousand Humans Meditating",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Amyotrophic Lateral Sclerosis (ALS)",
        "Angina, Stable",
        "Anxiety",
        "Asthma",
        "Atrial Fibrillation",
        "Cancer Brain",
        "Cancer, Breast",
        "Cancer Colon",
        "Cancer, Lung",
        "Cancer, Ovarian",
        "Cancer Prostate",
        "Cancer Skin",
        "Throat Cancer",
        "Lymphoma",
        "Cancer, Thyroid",
        "Cancer, Other",
        "Cerebral Palsy",
        "Chronic Fatigue Syndrome",
        "Cluster Headache",
        "Chronic Obstructive Pulmonary Disease (COPD)",
        "Chronic Kidney Diseases",
        "Crohn Disease",
        "Deafness",
        "Depression",
        "Diabetes",
        "Eczema",
        "Epilepsy",
        "Fibroids",
        "Fibromyalgia",
        "Heart Failure",
        "Hypertension",
        "Hyperthyroidism",
        "Hypothyroidism",
        "Irritable Bowel Syndrome (IBS)",
        "Infertility",
        "Lyme Disease",
        "Macular Degeneration",
        "Migraine",
        "Multiple Allergies",
        "Multiple Sclerosis",
        "Osteoarthritis",
        "Osteoporosis",
        "Ovarian Cysts",
        "Parkinson Disease",
        "Phantom Limb Pain",
        "Psoriasis",
        "Post Traumatic Stress Disorder (PTSD)",
        "Rheumatoid Arthritis",
        "Sjogrens Disease",
        "Spinal Cord Injury",
        "Spinal Stenosis",
        "Stroke",
        "Tension Headache",
        "Tinnitus",
        "Ulcerative Colitis"
      ],
      "interventions": [
        {
          "name": "Advanced multi-component meditation practice",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Tobias Moeller-Bertram",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 3000,
      "start_date": "2021-12-05",
      "completion_date": "2025-03-25",
      "has_results": false,
      "last_update_posted_date": "2024-11-01",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 1,
      "location_summary": "Palm Desert, California",
      "locations": [
        {
          "city": "Palm Desert",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06583395"
    },
    {
      "nct_id": "NCT01739972",
      "title": "Desiccated Thyroid Extract and Levothyroxine for Hypothyroidism Treatment",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Primary Hypothyroidism."
      ],
      "interventions": [
        {
          "name": "Levothyroxine",
          "type": "DRUG"
        },
        {
          "name": "Desiccated thyroid extract",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Walter Reed National Military Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 180,
      "start_date": "2012-05",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2012-12-04",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01739972"
    },
    {
      "nct_id": "NCT05712421",
      "title": "A Study Evaluation the Safety and Efficacy of Hormone Replacement Therapy With North Star Compared to Levothyroxine in Patients With Primary Hypothyroidism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "North Star",
          "type": "DRUG"
        },
        {
          "name": "Levothyroxine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neuvosyn Laboratories, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 303,
      "start_date": "2023-02-28",
      "completion_date": "2025-09-18",
      "has_results": false,
      "last_update_posted_date": "2026-02-18",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 31,
      "location_summary": "Birmingham, Alabama • Canoga Park, California • Greenbrae, California + 23 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        },
        {
          "city": "Greenbrae",
          "state": "California"
        },
        {
          "city": "Toluca Lake",
          "state": "California"
        },
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05712421"
    },
    {
      "nct_id": "NCT06345339",
      "title": "A Study to Assess the Safety and Efficacy of Oral Armour Thyroid Compared to Synthetic T4 for the Treatment of Primary Hypothyroidism in Adult Participants",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "Armour Thyroid",
          "type": "DRUG"
        },
        {
          "name": "Levothyroxine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 2800,
      "start_date": "2024-04-26",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2026-01-05",
      "last_synced_at": "2026-07-24T05:15:30.861Z",
      "location_count": 134,
      "location_summary": "Birmingham, Alabama • Bonita, California • Burbank, California + 109 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Bonita",
          "state": "California"
        },
        {
          "city": "Burbank",
          "state": "California"
        },
        {
          "city": "Concord",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06345339"
    }
  ]
}