{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Depression&q=treatment-resistant+depression",
    "query": {
      "q": "treatment-resistant depression",
      "condition": "Depression"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 423,
    "total_pages": 43,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Depression&q=treatment-resistant+depression&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T05:21:38.418Z",
  "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": "NCT00305565",
      "title": "Study Comparing Outcomes for Patients With Treatment Resistant Depression Who Receive VNS Therapy at Different Doses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "VNS Therapy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Cyberonics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 331,
      "start_date": "2006-01",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2014-01-07",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 26,
      "location_summary": "Tucson, Arizona • Sacramento, California • Marietta, Georgia + 21 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Marietta",
          "state": "Georgia"
        },
        {
          "city": "Evanston",
          "state": "Illinois"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00305565"
    },
    {
      "nct_id": "NCT06423430",
      "title": "Treatment ResistAnt Depression Subcallosal CingulatE Network DBS (TRANSCEND)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "Sham-stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Active-stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "22 Years to 70 Years"
      },
      "enrollment_count": 100,
      "start_date": "2024-09-11",
      "completion_date": "2029-04",
      "has_results": false,
      "last_update_posted_date": "2026-06-29",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 24,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Sacramento, California + 18 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06423430"
    },
    {
      "nct_id": "NCT02094898",
      "title": "Ketamine for Depression and Suicide Risk",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Depression",
        "Suicide"
      ],
      "interventions": [
        {
          "name": "Ketamine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 12,
      "start_date": "2014-09",
      "completion_date": "2016-08",
      "has_results": true,
      "last_update_posted_date": "2017-08-11",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02094898"
    },
    {
      "nct_id": "NCT00548964",
      "title": "Continuation Ketamine in Major Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Lithium",
          "type": "DRUG"
        },
        {
          "name": "Ketamine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "James Murrough",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 36,
      "start_date": "2007-10",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2014-05-23",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00548964"
    },
    {
      "nct_id": "NCT01555021",
      "title": "Pharmacogenomics for Antidepressant Guidance and Education",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "Genotyping assays",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "Massachusetts General Hospital",
      "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": 4,
      "start_date": "2011-12",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2018-11-05",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01555021"
    },
    {
      "nct_id": "NCT01310140",
      "title": "Risks for Insulin Resistance and Metabolic Syndrome Between Major Depressive Disorder (MDD) or MDD With Psychotic Features",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Major Depressive Disorder",
        "Major Depressive Disorder w/ Psychotic Features",
        "Metabolic Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 14,
      "start_date": "2011-01",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2017-02-13",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01310140"
    },
    {
      "nct_id": "NCT00186056",
      "title": "Mifepristone in Refractory Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "Mifepristone",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "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": 31,
      "start_date": "2003-01",
      "completion_date": "2007-05",
      "has_results": true,
      "last_update_posted_date": "2017-04-05",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00186056"
    },
    {
      "nct_id": "NCT05377177",
      "title": "Cortical Inhibition as a Biomarker of Response in a Comparison of Bilateral Versus Unilateral Accelerated Theta Burst Stimulation for Suicidal Ideation in Treatment-Resistant Depression -COMBAT-SI",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Suicidal Ideation",
        "Treatment-resistant Depression"
      ],
      "interventions": [
        {
          "name": "Accelerated Theta Burst Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Diego",
      "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": 76,
      "start_date": "2022-09-02",
      "completion_date": "2030-07-30",
      "has_results": false,
      "last_update_posted_date": "2025-11-05",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05377177"
    },
    {
      "nct_id": "NCT04032301",
      "title": "Repeated Ketamine Infusions for Comorbid PTSD and MDD in Veterans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Post-Traumatic Stress Disorders",
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Ketamine",
          "type": "DRUG"
        },
        {
          "name": "Normal Saline",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 67,
      "start_date": "2019-09-30",
      "completion_date": "2024-11-10",
      "has_results": false,
      "last_update_posted_date": "2025-06-27",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04032301"
    },
    {
      "nct_id": "NCT04688554",
      "title": "Psychosocial, Behavioral, and Radiologic Changes Following Radiosurgery for Benign Neurologic Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obsessive-Compulsive Disorder",
        "Pain, Intractable",
        "Depression"
      ],
      "interventions": [
        {
          "name": "fMRI and DTI",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Behavioral questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Disease-Specific Patient-Reported Outcomes",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral tests",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL"
      ],
      "sponsor": "Vanderbilt 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": 18,
      "start_date": "2020-08-25",
      "completion_date": "2024-02-01",
      "has_results": false,
      "last_update_posted_date": "2024-12-06",
      "last_synced_at": "2026-07-24T05:21:38.418Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04688554"
    }
  ]
}