{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=MAJOR+DEPRESSIVE+DISORDER&page=43",
    "query": {
      "condition": "MAJOR DEPRESSIVE DISORDER",
      "page": 43
    },
    "page_size": 10
  },
  "pagination": {
    "page": 43,
    "page_size": 10,
    "total_count": 1788,
    "total_pages": 179,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=MAJOR+DEPRESSIVE+DISORDER&page=44&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=MAJOR+DEPRESSIVE+DISORDER&page=42&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T08:28:08.146Z",
  "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": "NCT00326144",
      "title": "Efficacy and Safety of Quetiapine Fumarate Sustained Release (SEROQUEL SR) in the Treatment of Major Depressive Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Quetiapine fumarate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "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": 310,
      "start_date": "2006-04",
      "completion_date": "2007-05",
      "has_results": false,
      "last_update_posted_date": "2009-03-25",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 34,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Anaheim, California + 31 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "El Centro",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00326144"
    },
    {
      "nct_id": "NCT02143024",
      "title": "A Family-based Primary Care Intervention to Enhance Older Men's Depression Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Major Depression"
      ],
      "interventions": [
        {
          "name": "Family-based depression intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual care plus educational materials",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "50 Years and older · Male only"
      },
      "enrollment_count": 23,
      "start_date": "2015-11-01",
      "completion_date": "2016-12-31",
      "has_results": true,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 1,
      "location_summary": "Stockton, California",
      "locations": [
        {
          "city": "Stockton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02143024"
    },
    {
      "nct_id": "NCT01121536",
      "title": "Extension Study of the Safety and Efficacy of Armodafinil Treatment as Adjunctive Therapy in Adults With Major Depression Associated With Bipolar I Disorder",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "Armodafinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cephalon",
      "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": 867,
      "start_date": "2010-04-30",
      "completion_date": "2013-10-31",
      "has_results": true,
      "last_update_posted_date": "2018-09-21",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 66,
      "location_summary": "Birmingham, Alabama • Anaheim, California • Cerritos, California + 50 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Cerritos",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01121536"
    },
    {
      "nct_id": "NCT01798407",
      "title": "DBS of the Lateral Habenula in Treatment-Resistant Depression",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Treatment Resistant Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Activa Tremor Control Sys (DBS Implant)",
          "type": "DEVICE"
        },
        {
          "name": "Randomized, staggered withdrawal phase",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Wayne Goodman MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 6,
      "start_date": "2013-02",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2025-11-28",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01798407"
    },
    {
      "nct_id": "NCT01583400",
      "title": "Enhanced Collaborative Depression Treatment in Primary Care: The RESPECT-D-E Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depressive Disorder, Major",
        "Depressive Disorder, Minor",
        "Dysthymic Disorder"
      ],
      "interventions": [
        {
          "name": "RESPECT-D",
          "type": "OTHER"
        },
        {
          "name": "RESPECT-D-E (Enhanced)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Dartmouth-Hitchcock 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": 131,
      "start_date": "2011-09",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2014-09-18",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 1,
      "location_summary": "Keene, New Hampshire",
      "locations": [
        {
          "city": "Keene",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01583400"
    },
    {
      "nct_id": "NCT06442423",
      "title": "Open-Label Psilocybin Study in Transdiagnostic Population",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Transdiagnostic",
        "Depression - Major Depressive Disorder",
        "Anxiety",
        "PTSD Symptoms",
        "PTSD",
        "Substance Use",
        "Substance Use Disorder (SUD)",
        "OCD"
      ],
      "interventions": [
        {
          "name": "Psilocybin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2024-10-17",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-11",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06442423"
    },
    {
      "nct_id": "NCT06820723",
      "title": "A Mechanistic Study to Assess a Single Dose of CYB003 in Participants With Depression and Anxiety",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Depression",
        "Anxiety",
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "CYB003",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2026-08-01",
      "completion_date": "2028-11",
      "has_results": false,
      "last_update_posted_date": "2026-07-23",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06820723"
    },
    {
      "nct_id": "NCT00596622",
      "title": "FMRI Study of Brain Response Before and After Lithium Treatment in People With Bipolar Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Bipolar Disorder"
      ],
      "interventions": [
        {
          "name": "Lithium",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "15 Years to 60 Years"
      },
      "enrollment_count": 46,
      "start_date": "2007-08",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2016-10-17",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00596622"
    },
    {
      "nct_id": "NCT02288325",
      "title": "A Multicenter, Relapse Prevention Study With Levomilnacipran Extended Release (ER) in Participants With Major Depressive Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Depressive Disorder, Major"
      ],
      "interventions": [
        {
          "name": "Levomilnacipran ER",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Forest Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 644,
      "start_date": "2014-11-18",
      "completion_date": "2016-09-16",
      "has_results": true,
      "last_update_posted_date": "2018-10-29",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 47,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Phoenix, Arizona + 41 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Chino",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02288325"
    },
    {
      "nct_id": "NCT07217223",
      "title": "Spaced Transcranial Direct Current Stimulation for Treatment-Resistant Depression: A Home-Based Feasibility and Safety Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Treatment Resistant Depression (TRD)",
        "Major Depressive Disorder (MDD)"
      ],
      "interventions": [
        {
          "name": "Spaced Transcranial Direct Current Stimulation (tDCS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Diego",
      "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": 10,
      "start_date": "2025-09-27",
      "completion_date": "2027-03-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-10-17T08:28:08.146Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07217223"
    }
  ]
}