{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OPC-34712&page=2",
    "query": {
      "intervention": "OPC-34712",
      "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?intervention=OPC-34712&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T19:45:06.332Z",
  "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": "NCT01360645",
      "title": "Study of the Safety and Efficacy of Fixed Dose OPC-34712 as Adjunctive Therapy in the Treatment of Adults With Major Depressive Disorder (the Pyxis Trial)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Depressive Disorder",
        "Depression",
        "Depressive Disorder, Major",
        "Mood Disorders",
        "Mental Disorders"
      ],
      "interventions": [
        {
          "name": "OPC-34712 + ADT",
          "type": "DRUG"
        },
        {
          "name": "Placebo + ADT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "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": 826,
      "start_date": "2011-07",
      "completion_date": "2013-06",
      "has_results": true,
      "last_update_posted_date": "2015-11-26",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 37,
      "location_summary": "Arcadia, California • Beverly Hills, California • Fresno, California + 34 more",
      "locations": [
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Oceanside",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01360645"
    },
    {
      "nct_id": "NCT00905307",
      "title": "Study to Evaluate the Efficacy, Safety, and Tolerability of Oral OPC-34712 and Aripiprazole for Treatment of Acute Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "OPC-34712",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Aripiprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "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": 459,
      "start_date": "2009-07",
      "completion_date": "2010-11",
      "has_results": true,
      "last_update_posted_date": "2015-10-20",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 16,
      "location_summary": "Little Rock, Arkansas • Escondido, California • Garden Grove, California + 12 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Escondido",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Oceanside",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00905307"
    },
    {
      "nct_id": "NCT01360866",
      "title": "Safety and Tolerability of Oral OPC-34712 as Adjunctive Therapy in Adults With Major Depressive Disorder (the Orion Trial)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Depressive Disorder",
        "Depression",
        "Depressive Disorder, Major",
        "Mood Disorders",
        "Mental Disorders"
      ],
      "interventions": [
        {
          "name": "OPC-34712",
          "type": "DRUG"
        },
        {
          "name": "Escitalopram",
          "type": "DRUG"
        },
        {
          "name": "Fluoxetine",
          "type": "DRUG"
        },
        {
          "name": "Paroxetine CR",
          "type": "DRUG"
        },
        {
          "name": "Sertraline",
          "type": "DRUG"
        },
        {
          "name": "Duloxetine",
          "type": "DRUG"
        },
        {
          "name": "Venlafaxine XR",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "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": 2944,
      "start_date": "2011-10",
      "completion_date": "2017-05-18",
      "has_results": true,
      "last_update_posted_date": "2018-09-17",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 93,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 90 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01360866"
    },
    {
      "nct_id": "NCT01360632",
      "title": "Study of the Safety and Efficacy of Two Fixed Doses of OPC-34712 as Adjunctive Therapy in the Treatment of Adults With Major Depressive Disorder (the Polaris Trial)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Depressive Disorder",
        "Depression",
        "Depressive Disorder, Major",
        "Mood Disorders",
        "Mental Disorders"
      ],
      "interventions": [
        {
          "name": "OPC-34712 + ADT",
          "type": "DRUG"
        },
        {
          "name": "Placebo + ADT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "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": 1539,
      "start_date": "2011-06",
      "completion_date": "2013-09",
      "has_results": true,
      "last_update_posted_date": "2016-01-01",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 52,
      "location_summary": "Birmingham, Alabama • Costa Mesa, California • Glendale, California + 49 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01360632"
    },
    {
      "nct_id": "NCT01668797",
      "title": "Efficacy, Safety, and Tolerability of Brexpiprazole (OPC-34712) as Maintenance Treatment in Adults With Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Brexpiprazole",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "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": 524,
      "start_date": "2012-10",
      "completion_date": "2015-02",
      "has_results": true,
      "last_update_posted_date": "2017-01-13",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 14,
      "location_summary": "Anaheim, California • Cerritos, California • Garden Grove, California + 10 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01668797"
    },
    {
      "nct_id": "NCT00797966",
      "title": "Study of the Safety and Efficacy of OPC-34712 as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "OPC-34712",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "ADT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "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": 850,
      "start_date": "2009-05",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2016-02-29",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 50,
      "location_summary": "Arcadia, California • Beverly Hills, California • Escondido, California + 43 more",
      "locations": [
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Escondido",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "National City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00797966"
    },
    {
      "nct_id": "NCT01862640",
      "title": "A Phase 3, 12-week, Multicenter, Randomized, Double-blind, Placebo-controlled Trial to Evaluate the Efficacy, Safety, and Tolerability of 2 Fixed Doses of Brexpiprazole in the Treatment of Alzheimer's Agitation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Agitation Associated With",
        "Alzheimer's Disease",
        "Alzheimer's Type",
        "Mental Disorder",
        "Nervous System Diseases"
      ],
      "interventions": [
        {
          "name": "Brexpiprazole, OPC-34712",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "55 Years to 90 Years"
      },
      "enrollment_count": 433,
      "start_date": "2013-07-11",
      "completion_date": "2017-03-15",
      "has_results": true,
      "last_update_posted_date": "2020-12-31",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 37,
      "location_summary": "Tuscaloosa, Alabama • Phoenix, Arizona • Bellflower, California + 25 more",
      "locations": [
        {
          "city": "Tuscaloosa",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Bellflower",
          "state": "California"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Downey",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01862640"
    },
    {
      "nct_id": "NCT03292848",
      "title": "Trial to Assess the Pharmacokinetics, Safety, Tolerability of Oral Brexpiprazole in Children (6 to <13 Years Old) With Central Nervous System Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "ADHD",
        "Autism",
        "Bipolar I Disorder",
        "Conduct Disorder",
        "Oppositional Defiant Disorder"
      ],
      "interventions": [
        {
          "name": "Brexpiprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 24,
      "start_date": "2017-10-10",
      "completion_date": "2018-05-21",
      "has_results": false,
      "last_update_posted_date": "2018-06-12",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 9,
      "location_summary": "Little Rock, Arkansas • Rogers, Arkansas • Long Beach, California + 4 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03292848"
    },
    {
      "nct_id": "NCT04174365",
      "title": "Brexpiprazole in Treatment of Children and Adolescents With Irritability Associated With Autism Spectrum Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Irritability Associated With Autism Spectrum Disorder (ASD)"
      ],
      "interventions": [
        {
          "name": "Brexpiprazole",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 119,
      "start_date": "2019-10-30",
      "completion_date": "2022-09-09",
      "has_results": true,
      "last_update_posted_date": "2025-08-28",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 1,
      "location_summary": "Princeton, New Jersey",
      "locations": [
        {
          "city": "Princeton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04174365"
    },
    {
      "nct_id": "NCT01052077",
      "title": "Study of the Safety and Efficacy of OPC-34712 as Adjunctive Therapy in the Treatment of Adults With Major Depressive Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "OPC-34712",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "ADT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Otsuka Pharmaceutical Development & Commercialization, Inc.",
      "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": 773,
      "start_date": "2010-03",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2015-11-02",
      "last_synced_at": "2026-09-27T19:45:06.332Z",
      "location_count": 43,
      "location_summary": "Birmingham, Alabama • Arcadia, California • Beverly Hills, California + 39 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Oceanside",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01052077"
    }
  ]
}