{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+Depression&page=2",
    "query": {
      "condition": "Refractory Depression",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+Depression&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T07:27:33.695Z",
  "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": "NCT03434041",
      "title": "A Study to Evaluate the Efficacy, Pharmacokinetics, Safety and Tolerability of Flexible Doses of Intranasal Esketamine Plus an Oral Antidepressant in Adult Participants With Treatment-resistant Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Depressive Disorder, Treatment-Resistant"
      ],
      "interventions": [
        {
          "name": "Esketamine 56 mg",
          "type": "DRUG"
        },
        {
          "name": "Esketamine 84 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Duloxetine (Oral Antidepressant)",
          "type": "DRUG"
        },
        {
          "name": "Escitalopram (Oral Antidepressant)",
          "type": "DRUG"
        },
        {
          "name": "Sertraline (Oral Antidepressant)",
          "type": "DRUG"
        },
        {
          "name": "Venlafaxine Extended Release (XR) (Oral Antidepressant)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 252,
      "start_date": "2018-05-25",
      "completion_date": "2021-04-13",
      "has_results": true,
      "last_update_posted_date": "2025-04-29",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 6,
      "location_summary": "Atlanta, Georgia • Shreveport, Louisiana • Gaithersburg, Maryland + 3 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        },
        {
          "city": "Gaithersburg",
          "state": "Maryland"
        },
        {
          "city": "Watertown",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03434041"
    },
    {
      "nct_id": "NCT03240692",
      "title": "Stanford Accelerated Intelligent Neuromodulation Therapy for Treatment-Resistant Depression: OL Cohort",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "Accelerated theta-burst stimulation treatment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "22 Years to 80 Years"
      },
      "enrollment_count": 23,
      "start_date": "2017-05-01",
      "completion_date": "2020-03-03",
      "has_results": true,
      "last_update_posted_date": "2022-04-21",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03240692"
    },
    {
      "nct_id": "NCT07680140",
      "title": "Biomarker-Guided Antidepressant Selection",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Depression - Major Depressive Disorder",
        "Treatment-resistant Depression (TRD)",
        "rTMS",
        "Ketamine",
        "fMRI"
      ],
      "interventions": [
        {
          "name": "TMS",
          "type": "DEVICE"
        },
        {
          "name": "Ketamine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "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": 27,
      "start_date": "2026-07",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-02",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07680140"
    },
    {
      "nct_id": "NCT03845504",
      "title": "iTBS in Refractory Pediatric Depression",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "Intermittent Theta Burst Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "12 Years to 21 Years"
      },
      "enrollment_count": 4,
      "start_date": "2018-11-19",
      "completion_date": "2019-10-09",
      "has_results": true,
      "last_update_posted_date": "2023-12-12",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03845504"
    },
    {
      "nct_id": "NCT01304147",
      "title": "Intranasal Ketamine in Treatment-Resistant Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Ketamine",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "James Murrough",
      "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": 20,
      "start_date": "2011-10",
      "completion_date": "2014-10",
      "has_results": true,
      "last_update_posted_date": "2017-02-08",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01304147"
    },
    {
      "nct_id": "NCT03684447",
      "title": "Neural and Antidepressant Effects of Propofol",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "Propofol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 48,
      "start_date": "2019-04-21",
      "completion_date": "2024-07",
      "has_results": false,
      "last_update_posted_date": "2024-05-07",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03684447"
    },
    {
      "nct_id": "NCT06303739",
      "title": "Psilocybin-Assisted Therapy in Treatment-Resistant Depression",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Refractory Depression",
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "psilocybin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "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": 20,
      "start_date": "2024-04-19",
      "completion_date": "2027-03-26",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06303739"
    },
    {
      "nct_id": "NCT02497287",
      "title": "A Long-term, Safety and Efficacy Study of Intranasal Esketamine in Treatment-resistant Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Treatment-resistant Depression"
      ],
      "interventions": [
        {
          "name": "Esketamine (Intranasal Spray)",
          "type": "DRUG"
        },
        {
          "name": "Duloxetine (Oral Antidepressant)",
          "type": "DRUG"
        },
        {
          "name": "Escitalopram (Oral Antidepressant)",
          "type": "DRUG"
        },
        {
          "name": "Sertraline (Oral Antidepressant)",
          "type": "DRUG"
        },
        {
          "name": "Venlafaxine Extended Release (XR) (Oral Antidepressant)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 802,
      "start_date": "2015-09-30",
      "completion_date": "2017-10-28",
      "has_results": true,
      "last_update_posted_date": "2025-04-29",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 16,
      "location_summary": "New Haven, Connecticut • Miami, Florida • Marietta, Georgia + 13 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Marietta",
          "state": "Georgia"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02497287"
    },
    {
      "nct_id": "NCT06101914",
      "title": "Studying Patterns in Patient Engagement Among Treatment Resistant Depression Patients",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Treatment Resistant Depression"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Power Life Sciences Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2024-11",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2023-10-26",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06101914"
    },
    {
      "nct_id": "NCT03290963",
      "title": "Effect of Lithium Versus Placebo in Adults With Treatment-Resistant Depression Who Are Receiving Ketamine",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "Lithium",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ketamine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "William V. Bobo, M.D.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 0,
      "start_date": "2017-11-30",
      "completion_date": "2018-12",
      "has_results": false,
      "last_update_posted_date": "2018-08-16",
      "last_synced_at": "2026-07-22T07:27:33.695Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03290963"
    }
  ]
}