{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Dapsone&page=2",
    "query": {
      "intervention": "Dapsone",
      "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=Dapsone&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T03:05:47.347Z",
  "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": "NCT03681470",
      "title": "Aczone Gel 7.5% in the Treatment of Acne Vulgaris in Patients With Skin of Color",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Aczone Gel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2019-04-09",
      "completion_date": "2021-05-06",
      "has_results": true,
      "last_update_posted_date": "2022-07-27",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03681470"
    },
    {
      "nct_id": "NCT02108483",
      "title": "Phototoxicity Test of Dapsone Gel in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "dapsone gel",
          "type": "DRUG"
        },
        {
          "name": "dapsone gel vehicle",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Almirall, S.A.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 33,
      "start_date": "2014-04",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2018-10-09",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 1,
      "location_summary": "Fair Lawn, New Jersey",
      "locations": [
        {
          "city": "Fair Lawn",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02108483"
    },
    {
      "nct_id": "NCT01313728",
      "title": "A Study That Evaluates the Decrease in Irritation When Using Additional Acne Treatment Products",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Dapsone plus Tretinoin Gel",
          "type": "DRUG"
        },
        {
          "name": "Tretinoin Gel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch Health Americas, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 26,
      "start_date": "2010-12",
      "completion_date": "2011-01",
      "has_results": true,
      "last_update_posted_date": "2012-02-15",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 1,
      "location_summary": "Broomall, Pennsylvania",
      "locations": [
        {
          "city": "Broomall",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01313728"
    },
    {
      "nct_id": "NCT00000739",
      "title": "Comparison of Two Dosage Regimens of Oral Dapsone for Prophylaxis of Pneumocystis Carinii Pneumonia in Pediatric HIV Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pneumonia, Pneumocystis Carinii",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Dapsone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "1 Month to 12 Years"
      },
      "enrollment_count": 96,
      "start_date": null,
      "completion_date": "1998-06",
      "has_results": false,
      "last_update_posted_date": "2021-11-04",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 43,
      "location_summary": "Long Beach, California • Los Angeles, California • Oakland, California + 29 more",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000739"
    },
    {
      "nct_id": "NCT00964366",
      "title": "Study to Determine and Compare the Tolerance and Irritation Potential of Topical Acne Medications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "clindamycin and benzoyl peroxide",
          "type": "DRUG"
        },
        {
          "name": "Dapsone gel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stiefel, a GSK Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 53,
      "start_date": "2009-07",
      "completion_date": "2009-08",
      "has_results": true,
      "last_update_posted_date": "2017-05-30",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 1,
      "location_summary": "Broomall, Pennsylvania",
      "locations": [
        {
          "city": "Broomall",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00964366"
    },
    {
      "nct_id": "NCT01165840",
      "title": "Effect of Weight and/or Obesity on Dapsone Drug Concentrations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Obesity",
        "Leprosy",
        "Tuberculosis"
      ],
      "interventions": [
        {
          "name": "Dapsone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Texas Tech University Health Sciences Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2010-07",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2016-07-21",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01165840"
    },
    {
      "nct_id": "NCT05894954",
      "title": "Precision Medicine Approach for Early Dementia & Mild Cognitive Impairment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Mild Cognitive Impairment",
        "Dementia, Mild"
      ],
      "interventions": [
        {
          "name": "Precision Medicine Approach",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Hormones and Medications tailored to lab tests, combined with devices that support stress management and brain exercises",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Standard-of-Care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Lifestyle including diet, exercise, stress management",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "COMBINATION_PRODUCT",
        "BEHAVIORAL"
      ],
      "sponsor": "Alzheimer's Prevention and Reversal Project, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "76 Years",
        "sex": "ALL",
        "summary": "45 Years to 76 Years"
      },
      "enrollment_count": 73,
      "start_date": "2023-07-31",
      "completion_date": "2026-02-09",
      "has_results": false,
      "last_update_posted_date": "2026-02-18",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 6,
      "location_summary": "Folsom, California • San Rafael, California • Walnut Creek, California + 3 more",
      "locations": [
        {
          "city": "Folsom",
          "state": "California"
        },
        {
          "city": "San Rafael",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Rocky River",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05894954"
    },
    {
      "nct_id": "NCT01974323",
      "title": "Safety and Efficacy Study of Dapsone Gel in Patients With Acne Vulgaris",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Dapsone Gel",
          "type": "DRUG"
        },
        {
          "name": "Dapsone Gel Vehicle",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Almirall, S.A.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 2238,
      "start_date": "2013-11",
      "completion_date": "2014-10",
      "has_results": true,
      "last_update_posted_date": "2018-10-09",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 2,
      "location_summary": "Beverly Hills, California • Aventura, Florida",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01974323"
    },
    {
      "nct_id": "NCT02939573",
      "title": "A Randomized Multicenter Study for Isolated Skin Vasculitis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Primary Cutaneous Vasculitis",
        "Cutaneous Polyarteritis Nodosa",
        "IgA Vasculitis",
        "Henoch-Schönlein Purpura"
      ],
      "interventions": [
        {
          "name": "Colchicine",
          "type": "DRUG"
        },
        {
          "name": "Dapsone",
          "type": "DRUG"
        },
        {
          "name": "Azathioprine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2017-01-01",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 12,
      "location_summary": "Kansas City, Kansas • Boston, Massachusetts • Rochester, Minnesota + 9 more",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Lake Success",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02939573"
    },
    {
      "nct_id": "NCT00001028",
      "title": "A Study of Pentamidine Plus Dapsone in the Prevention of Pneumocystis Carinii Pneumonia (PCP) in HIV-Infected Patients Who Cannot Take Trimethoprim or Sulfonamides",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumonia, Pneumocystis Carinii",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Pentamidine isethionate",
          "type": "DRUG"
        },
        {
          "name": "Dapsone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 400,
      "start_date": null,
      "completion_date": "1994-06",
      "has_results": false,
      "last_update_posted_date": "2021-11-01",
      "last_synced_at": "2026-09-07T03:05:47.347Z",
      "location_count": 14,
      "location_summary": "San Francisco, California • Denver, Colorado • Wilmington, Delaware + 10 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001028"
    }
  ]
}