{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28for+Doxycycline%29&page=3",
    "query": {
      "intervention": "Placebo (for Doxycycline)",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 51,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28for+Doxycycline%29&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28for+Doxycycline%29&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-12T04:46:48.771Z",
  "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": "NCT04451330",
      "title": "A Study to Compare Efficacy and Safety of Trifarotene Cream When Used With an Oral Antibiotic for the Treatment of Severe Acne Vulgaris (AV)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Trifarotene cream",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline hyclate",
          "type": "DRUG"
        },
        {
          "name": "Trifarotene Vehicle",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Galderma R&D",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 202,
      "start_date": "2020-07-29",
      "completion_date": "2021-04-26",
      "has_results": true,
      "last_update_posted_date": "2022-05-10",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 25,
      "location_summary": "Fort Smith, Arkansas • Hot Springs, Arkansas • Rogers, Arkansas + 21 more",
      "locations": [
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04451330"
    },
    {
      "nct_id": "NCT01014260",
      "title": "Doxycycline Outcomes in Lupus Erythematosus",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2010-09",
      "completion_date": "2011-03",
      "has_results": false,
      "last_update_posted_date": "2012-03-30",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01014260"
    },
    {
      "nct_id": "NCT02756403",
      "title": "A Randomized Controlled Trial of Three Antibiotic Regimens for First Trimester Abortions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "First Trimester Abortion"
      ],
      "interventions": [
        {
          "name": "Azithromycin",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "Metronidazole",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medstar Health Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 181,
      "start_date": "2016-03",
      "completion_date": "2017-07",
      "has_results": true,
      "last_update_posted_date": "2022-02-11",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 2,
      "location_summary": "Washington D.C., District of Columbia • Silver Spring, Maryland",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Silver Spring",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02756403"
    },
    {
      "nct_id": "NCT04433078",
      "title": "RepurpoSing Old Drugs TO SuppRess a Modern Threat: COVID-19 STORM",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cytokine Storm",
        "SARS-CoV-2"
      ],
      "interventions": [
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2020-06-22",
      "completion_date": "2021-04-13",
      "has_results": false,
      "last_update_posted_date": "2021-04-19",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04433078"
    },
    {
      "nct_id": "NCT01301586",
      "title": "A Novel Combination Oral Agent to Treat Acne Vulgaris",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "ACNE VULGARIS"
      ],
      "interventions": [
        {
          "name": "Doxycycline and S-equol",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nexgen Dermatologics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "13 Years to 60 Years · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2010-11",
      "completion_date": "2011-09",
      "has_results": false,
      "last_update_posted_date": "2011-02-23",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 2,
      "location_summary": "Rolling Hills Estates, California • Boynton Beach, Florida",
      "locations": [
        {
          "city": "Rolling Hills Estates",
          "state": "California"
        },
        {
          "city": "Boynton Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01301586"
    },
    {
      "nct_id": "NCT00964834",
      "title": "Ph1 Study of Valortim and Doxycycline in Humans",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Anthrax"
      ],
      "interventions": [
        {
          "name": "Doxycycline and Valortim",
          "type": "DRUG"
        },
        {
          "name": "Placebo Antibiotic and Valortim",
          "type": "DRUG"
        },
        {
          "name": "Placebo Antibiotic and Placebo Valortim",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "PharmAthene, Inc.",
      "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": 24,
      "start_date": "2009-07",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2010-08-10",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00964834"
    },
    {
      "nct_id": "NCT05343455",
      "title": "A Study to Assess the Safety, Efficacy and Tolerability of Oral DFD-29 Capsules for the Treatment of Rosacea (MVOR-2)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Papulopustular Rosacea"
      ],
      "interventions": [
        {
          "name": "DFD-29",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Journey Medical Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 330,
      "start_date": "2022-03-29",
      "completion_date": "2023-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-12-03",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 15,
      "location_summary": "Santa Monica, California • Doral, Florida • Miami, Florida + 11 more",
      "locations": [
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Doral",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miramar",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05343455"
    },
    {
      "nct_id": "NCT04504123",
      "title": "MMP-9 Inhibition for Recalcitrant Wet AMD",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Exudative Macular Degeneration",
        "Wet Age-related Macular Degeneration"
      ],
      "interventions": [
        {
          "name": "Doxycycline Hyclate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "50 Years to 99 Years"
      },
      "enrollment_count": 50,
      "start_date": "2020-11-04",
      "completion_date": "2027-03-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-02",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04504123"
    },
    {
      "nct_id": "NCT00358462",
      "title": "Mycoplasma Genitalium Antibiotic Susceptibility and Treatment (MEGA)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Urethritis"
      ],
      "interventions": [
        {
          "name": "Azithromycin",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "16 Years and older · Male only"
      },
      "enrollment_count": 606,
      "start_date": "2007-01",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2018-08-15",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00358462"
    },
    {
      "nct_id": "NCT01547325",
      "title": "Study of NanoDOX Hydrogel vs Placebo for Dehisced Surgical Wounds",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dehisced Surgical Wounds"
      ],
      "interventions": [
        {
          "name": "NanoDOX 1% doxycycline monohydrate Hydrogel",
          "type": "DRUG"
        },
        {
          "name": "placebo hydrogel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NanoSHIFT LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2012-05",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2017-03-13",
      "last_synced_at": "2026-10-12T04:46:48.771Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01547325"
    }
  ]
}