{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28Tetracycline%29",
    "query": {
      "intervention": "Placebo (Tetracycline)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 119,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28Tetracycline%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-05T05:08:20.098Z",
  "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": "NCT00764361",
      "title": "Safety Study of Topical Doxycycline Gel for Adult Diabetic Lower Extremity Ulcers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diabetic Foot Ulcer"
      ],
      "interventions": [
        {
          "name": "doxycycline",
          "type": "DRUG"
        },
        {
          "name": "placebo gel",
          "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": 15,
      "start_date": "2009-01",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2017-04-07",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00764361"
    },
    {
      "nct_id": "NCT05597462",
      "title": "Impact of DFD-29 on Microbial Flora of Healthy, Adult Human Subjects When Administered Over 16 Weeks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Rosacea"
      ],
      "interventions": [
        {
          "name": "Minocycline hydrochloride capsules",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Journey Medical Corporation",
      "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": 60,
      "start_date": "2022-09-30",
      "completion_date": "2023-05-30",
      "has_results": false,
      "last_update_posted_date": "2023-08-02",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 2,
      "location_summary": "Las Cruces, New Mexico • El Paso, Texas",
      "locations": [
        {
          "city": "Las Cruces",
          "state": "New Mexico"
        },
        {
          "city": "El Paso",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05597462"
    },
    {
      "nct_id": "NCT00917553",
      "title": "Evaluation of Effect of Doxycycline Verses Placebo on Retinal Function and Diabetic Retinopathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diabetic Retinopathy"
      ],
      "interventions": [
        {
          "name": "doxycycline monohydrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thomas Gardner",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2009-07",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2018-11-30",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00917553"
    },
    {
      "nct_id": "NCT00066027",
      "title": "Effects of Low-Dose Doxycycline on Oral Bone Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Periodontitis"
      ],
      "interventions": [
        {
          "name": "20 mg doxycycline hyclate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 70 Years · Female only"
      },
      "enrollment_count": 128,
      "start_date": "2002-06-01",
      "completion_date": "2005-10-01",
      "has_results": false,
      "last_update_posted_date": "2023-09-06",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 2,
      "location_summary": "Lincoln, Nebraska • Stony Brook, New York",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        },
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00066027"
    },
    {
      "nct_id": "NCT00560703",
      "title": "Treatment of Patients With Blepharitis and Facial Rosacea",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Blepharitis",
        "Meibomianitis",
        "Dry Eye"
      ],
      "interventions": [
        {
          "name": "COL-101 (doxycycline, USP) capsules",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "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": 70,
      "start_date": "2007-11",
      "completion_date": "2009-07",
      "has_results": true,
      "last_update_posted_date": "2021-02-18",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 8,
      "location_summary": "Little Rock, Arkansas • Naples, Florida • Louisville, Kentucky + 5 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Naples",
          "state": "Florida"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Lynbrook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00560703"
    },
    {
      "nct_id": "NCT01594827",
      "title": "Persistent Methicillin Resistant Staphylococcus Aureus Eradication Protocol (PMEP)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "Inhaled Vancomycin",
          "type": "DRUG"
        },
        {
          "name": "Placebo (Sterile Water)",
          "type": "DRUG"
        },
        {
          "name": "Rifampin",
          "type": "DRUG"
        },
        {
          "name": "Trimethoprim/Sulfamethoxazole (TMP/SMX)",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "Mupirocin Intranasal Creme",
          "type": "DRUG"
        },
        {
          "name": "4% chlorhexidine gluconate liquid skin cleanser",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2012-10",
      "completion_date": "2017-12-30",
      "has_results": true,
      "last_update_posted_date": "2019-02-26",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Cleveland, Ohio",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01594827"
    },
    {
      "nct_id": "NCT01320033",
      "title": "Placebo Controlled Efficacy and Safety Study of CD2475/101 40 mg Tablets vs. Placebo and Doxycycline 100 mg Capsules Once Daily in the Treatment of Inflammatory Lesions of Acne Vulgaris",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "CD2475/101 40 mg",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline 100 mg",
          "type": "DRUG"
        },
        {
          "name": "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": 662,
      "start_date": "2011-03-29",
      "completion_date": "2012-01-03",
      "has_results": true,
      "last_update_posted_date": "2021-02-18",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 31,
      "location_summary": "Hot Springs, Arkansas • Los Angeles, California • Denver, Colorado + 25 more",
      "locations": [
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Longmont",
          "state": "Colorado"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01320033"
    },
    {
      "nct_id": "NCT02193269",
      "title": "The Effects of Minocycline in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Memory Impairment"
      ],
      "interventions": [
        {
          "name": "Sugar pill",
          "type": "DRUG"
        },
        {
          "name": "Minocycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 10,
      "start_date": "2013-07-08",
      "completion_date": "2015-11-05",
      "has_results": false,
      "last_update_posted_date": "2019-09-19",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 1,
      "location_summary": "West Haven, Connecticut",
      "locations": [
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02193269"
    },
    {
      "nct_id": "NCT03146325",
      "title": "Helicobacter Pylori and Body Iron in Adults",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Helicobacter Pylori Infection"
      ],
      "interventions": [
        {
          "name": "BISMUTH TETRACYCLINE METRONIDAZOLE OMEPRAZOLE",
          "type": "DRUG"
        },
        {
          "name": "MATCHING PLACEBO",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 0,
      "start_date": "2012-11",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2017-05-09",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 1,
      "location_summary": "El Paso, Texas",
      "locations": [
        {
          "city": "El Paso",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03146325"
    },
    {
      "nct_id": "NCT04031755",
      "title": "A Proof-of-Concept Study of Minocycline in Autism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Autism Spectrum Disorder",
        "Autism"
      ],
      "interventions": [
        {
          "name": "Minocycline",
          "type": "DRUG"
        },
        {
          "name": "Placebos",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "12 Years to 22 Years"
      },
      "enrollment_count": 53,
      "start_date": "2019-04-19",
      "completion_date": "2020-10-30",
      "has_results": false,
      "last_update_posted_date": "2020-12-08",
      "last_synced_at": "2026-10-05T05:08:20.098Z",
      "location_count": 3,
      "location_summary": "Columbia, Missouri • Cincinnati, Ohio • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04031755"
    }
  ]
}