{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=3%2C4-DIAMINOPYRIDINE",
    "query": {
      "intervention": "3,4-DIAMINOPYRIDINE"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-15T23:54:04.365Z",
  "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": "NCT01511978",
      "title": "Effectiveness of 3,4-Diaminopyridine in Lambert-Eaton Myasthenic Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lambert-Eaton Myasthenic Syndrome",
        "Eaton-Lambert Myasthenic Syndrome"
      ],
      "interventions": [
        {
          "name": "Continuous 3,4-DAP",
          "type": "DRUG"
        },
        {
          "name": "Taper 3,4-DAP to Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jacobus Pharmaceutical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2012-01",
      "completion_date": "2015-07",
      "has_results": true,
      "last_update_posted_date": "2017-07-11",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 7,
      "location_summary": "Sacramento, California • Indianapolis, Indiana • Durham, North Carolina + 4 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01511978"
    },
    {
      "nct_id": "NCT02189720",
      "title": "Expanded Access Study Amifampridine Phosphate in Lambert-Eaton Myasthenic Syndrome (LEMS),Congenital Myasthenic Syndrome",
      "overall_status": "APPROVED_FOR_MARKETING",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Congenital Myasthenic Syndrome",
        "Lambert-Eaton Myasthenic Syndrome",
        "Nystagmus, Acquired"
      ],
      "interventions": [
        {
          "name": "Amifampridine Phosphate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Catalyst Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2025-03-26",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02189720"
    },
    {
      "nct_id": "NCT03579966",
      "title": "Long Term Safety Study of Amifampridine Phosphate in MuSK-MG (Muscle Specific Tyrosine Kinase Myasthenia Gravis)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Myasthenia Gravis, MuSK",
        "AChR Myasthenia Gravis"
      ],
      "interventions": [
        {
          "name": "Amifampridine Phosphate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Catalyst Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 63,
      "start_date": "2018-06-11",
      "completion_date": "2022-08-05",
      "has_results": true,
      "last_update_posted_date": "2024-05-07",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 2,
      "location_summary": "Cleveland, Ohio • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03579966"
    },
    {
      "nct_id": "NCT02090725",
      "title": "Controlled Trial of 3,4-Diaminopyridine (3-4DAP) in Lambert-Eaton Myasthenic Syndrome (LEMS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Muscle Weakness"
      ],
      "interventions": [
        {
          "name": "3-4 Diaminopyridine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jeffrey A. Cohen, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "45 Years to 65 Years"
      },
      "enrollment_count": 4,
      "start_date": "2004-02",
      "completion_date": "2018-11-28",
      "has_results": true,
      "last_update_posted_date": "2019-05-21",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02090725"
    },
    {
      "nct_id": "NCT01378546",
      "title": "Treatment of Lambert-Eaton Myasthenic Syndrome (LEMS) With 3, 4 DAP",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Lambert Eaton Myasthenic Syndrome (LEMS)"
      ],
      "interventions": [
        {
          "name": "3,4-diaminopyridine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Louis H. Weimer, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2005-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-07-18",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01378546"
    },
    {
      "nct_id": "NCT01825395",
      "title": "Use of 3,4-Diaminopyridine in the Treatment of Lambert-Eaton Syndrome",
      "overall_status": "APPROVED_FOR_MARKETING",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Lambert Eaton Myasthenic Syndrome"
      ],
      "interventions": [
        {
          "name": "3, 4-Diaminopyridine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2021-10-06",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01825395"
    },
    {
      "nct_id": "NCT00704925",
      "title": "Treatment of Lambert-Eaton Syndrome With 3,4 DAP",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Lambert Eaton Myasthenic Syndrome"
      ],
      "interventions": [
        {
          "name": "3, 4 DAP",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "David P. Richman, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2019-10-30",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00704925"
    },
    {
      "nct_id": "NCT01377922",
      "title": "A Phase 3 Study of Amifampridine Phosphate in Patients With Lambert Eaton Myasthenic Syndrome (LEMS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Lambert Eaton Myasthenic Syndrome"
      ],
      "interventions": [
        {
          "name": "Amifampridine Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Catalyst Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 38,
      "start_date": "2011-06",
      "completion_date": "2016-07",
      "has_results": true,
      "last_update_posted_date": "2018-01-04",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • Scottsdale, Arizona • Los Angeles, California + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01377922"
    },
    {
      "nct_id": "NCT02562066",
      "title": "Amifampridine Phosphate for the Treatment of Congenital Myasthenic Syndromes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Myasthenic Syndromes, Congenital"
      ],
      "interventions": [
        {
          "name": "amifampridine phosphate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Catalyst Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "2 Years to 70 Years"
      },
      "enrollment_count": 20,
      "start_date": "2016-01",
      "completion_date": "2019-10",
      "has_results": true,
      "last_update_posted_date": "2021-04-02",
      "last_synced_at": "2026-09-15T23:54:04.365Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Baltimore, Maryland • Boston, Massachusetts + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02562066"
    }
  ]
}