{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tretinoin+Gel",
    "query": {
      "intervention": "Tretinoin Gel"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 28,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tretinoin+Gel&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T08:52:33.761Z",
  "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": "NCT00835198",
      "title": "Dapsone Gel 5% and Tretinoin Gel 0.025% Versus Tretinoin Gel 0.025% Monotherapy for Facial Acne Vulgaris",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Dapsone; Tretinoin",
          "type": "DRUG"
        },
        {
          "name": "Tretinoin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allergan",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 163,
      "start_date": "2008-12",
      "completion_date": "2009-08",
      "has_results": true,
      "last_update_posted_date": "2011-10-31",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Strongsville, Ohio",
      "locations": [
        {
          "city": "Strongsville",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00835198"
    },
    {
      "nct_id": "NCT07469228",
      "title": "A Study Comparing Tretinoin Gel Microsphere, 0.04% and RETIN-A MICRO ® Gel Microsphere, 0.04% in the Treatment of Acne Vulgaris",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Tretinoin Gel Microsphere, 0.04%",
          "type": "DRUG"
        },
        {
          "name": "RETIN-A MICRO® (Tretinoin) Gel Microsphere, 0.04%",
          "type": "DRUG"
        },
        {
          "name": "Placebo Control",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sun Pharmaceutical Industries, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "12 Years to 40 Years"
      },
      "enrollment_count": 1043,
      "start_date": "2025-08-04",
      "completion_date": "2025-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-03-13",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Hawthorne, New York",
      "locations": [
        {
          "city": "Hawthorne",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07469228"
    },
    {
      "nct_id": "NCT04548349",
      "title": "Profiling the Skin Microbiome in Response to Altreno in Acne Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Altreno",
          "type": "DRUG"
        },
        {
          "name": "Benzoyl peroxide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 25,
      "start_date": "2021-04-23",
      "completion_date": "2022-08-22",
      "has_results": true,
      "last_update_posted_date": "2024-02-06",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04548349"
    },
    {
      "nct_id": "NCT00603772",
      "title": "Clinical Evaluation of the Photoallergy Potential of Atralin Gel",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Atralin (tretinoin) gel, 0.05%",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Coria Laboratories, Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2008-01",
      "completion_date": "2008-03",
      "has_results": false,
      "last_update_posted_date": "2008-05-06",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00603772"
    },
    {
      "nct_id": "NCT00604032",
      "title": "Study to Determine the Phototoxity of Atralin (Tretinoin) Gel, 0.05%",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Atralin (tretinoin) Gel, 0.05%",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Coria Laboratories, Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2008-01",
      "completion_date": "2008-02",
      "has_results": false,
      "last_update_posted_date": "2008-03-28",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00604032"
    },
    {
      "nct_id": "NCT01047189",
      "title": "Adherence to Study Medication Compared to Generic Topical Clindamycin Plus Generic Topical Tretinoin in Subjects With Mild to Moderate Acne Vulgaris",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "clindamycin phosphate 1.2% and tretinoin 0.025%",
          "type": "DRUG"
        },
        {
          "name": "clindamycin 1% gel",
          "type": "DRUG"
        },
        {
          "name": "tretinoin 0.025% cream",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2009-03",
      "completion_date": "2009-10",
      "has_results": true,
      "last_update_posted_date": "2018-09-10",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01047189"
    },
    {
      "nct_id": "NCT00176527",
      "title": "Isotretinoin, Interferon Alfa-2b, Docetaxel, and Estramustine in Treating Patients With Metastatic Prostate Cancer That Did Not Respond to Hormone Therapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "recombinant interferon alfa-2b",
          "type": "BIOLOGICAL"
        },
        {
          "name": "docetaxel",
          "type": "DRUG"
        },
        {
          "name": "estramustine phosphate sodium",
          "type": "DRUG"
        },
        {
          "name": "isotretinoin",
          "type": "DRUG"
        },
        {
          "name": "polyacrylamide gel electrophoresis",
          "type": "GENETIC"
        },
        {
          "name": "protein expression analysis",
          "type": "GENETIC"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "University of Medicine and Dentistry of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2002-11",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2009-12-11",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00176527"
    },
    {
      "nct_id": "NCT04883736",
      "title": "A Study Comparing Tretinoin Gel Microsphere, 0.1% and RETIN-A MICRO ® Gel Microsphere, 0.1% in the Treatment of Acne Vulgaris",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Tretinoin Gel Microsphere, 0.1%",
          "type": "DRUG"
        },
        {
          "name": "RETIN-A MICRO® (Tretinoin) Gel Microsphere, 0.1%",
          "type": "DRUG"
        },
        {
          "name": "Placebo Control",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sun Pharmaceutical Industries, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "12 Years to 40 Years"
      },
      "enrollment_count": 973,
      "start_date": "2020-08-31",
      "completion_date": "2021-04-16",
      "has_results": false,
      "last_update_posted_date": "2021-05-12",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04883736"
    },
    {
      "nct_id": "NCT01135069",
      "title": "Bioequivalence Study of Generic Tretinoin 0.1% Microsphere Gel, 0.1% Retin-A Micro® and Placebo",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acne"
      ],
      "interventions": [
        {
          "name": "Tretinoin microsphere 0.1%",
          "type": "DRUG"
        },
        {
          "name": "Brand Retin-A Micro tretinoin microsphere gel 0.1%",
          "type": "DRUG"
        },
        {
          "name": "placebo microsphere gel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Spear Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "12 Years to 40 Years"
      },
      "enrollment_count": 480,
      "start_date": "2009-10",
      "completion_date": "2010-04",
      "has_results": true,
      "last_update_posted_date": "2014-10-27",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Land O' Lakes, Florida",
      "locations": [
        {
          "city": "Land O' Lakes",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01135069"
    },
    {
      "nct_id": "NCT01522456",
      "title": "Split-face Tolerability Comparison Between Adapalene-Benzoyl Peroxide Gel Versus Tretinoin Gel",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Epiduo Gel",
          "type": "DRUG"
        },
        {
          "name": "Retin-A Micro Microsphere 0.1%",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Galderma R&D",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 73,
      "start_date": "2012-04",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2022-08-01",
      "last_synced_at": "2026-09-26T08:52:33.761Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01522456"
    }
  ]
}