{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=tetracycline+hydrochloride&page=2",
    "query": {
      "intervention": "tetracycline hydrochloride",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 34,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=tetracycline+hydrochloride&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=tetracycline+hydrochloride&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T23:48:58.546Z",
  "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": "NCT00668746",
      "title": "Long-term Safety of Minocycline in Patients With Gum Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Periodontitis"
      ],
      "interventions": [
        {
          "name": "Minocycline HCl microspheres",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "OraPharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "25 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2007-12",
      "completion_date": "2009-02",
      "has_results": true,
      "last_update_posted_date": "2011-12-12",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00668746"
    },
    {
      "nct_id": "NCT03762915",
      "title": "Scaling and Root Planing (SRP) With and Without Minocycline HCl Microspheres, 1 mg",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "SRP",
        "Minocycline HCl Microspheres",
        "Biomarkers"
      ],
      "interventions": [
        {
          "name": "minocycline HCl microspheres",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2019-05-20",
      "completion_date": "2022-04-01",
      "has_results": true,
      "last_update_posted_date": "2025-01-28",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03762915"
    },
    {
      "nct_id": "NCT02203552",
      "title": "Minocycline Hydrochloride in Reducing Chemotherapy Induced Depression and Anxiety in Patients With Stage I-III Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anxiety Disorder",
        "Depression",
        "Recurrent Breast Cancer",
        "Stage IA Breast Cancer",
        "Stage IB Breast Cancer",
        "Stage II Breast Cancer",
        "Stage IIIA Breast Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer"
      ],
      "interventions": [
        {
          "name": "minocycline hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 56,
      "start_date": "2015-06-23",
      "completion_date": "2020-06-15",
      "has_results": true,
      "last_update_posted_date": "2025-01-08",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02203552"
    },
    {
      "nct_id": "NCT03340350",
      "title": "Minocycline for Treatment of Posttraumatic Stress Disorder in Veterans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "PTSD"
      ],
      "interventions": [
        {
          "name": "Minocycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sriram Ramaswamy",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "19 Years to 65 Years"
      },
      "enrollment_count": 10,
      "start_date": "2017-05-10",
      "completion_date": "2018-06-01",
      "has_results": true,
      "last_update_posted_date": "2020-07-09",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03340350"
    },
    {
      "nct_id": "NCT00712413",
      "title": "Safety, Efficacy of Pylera BID Dosing in Eradication of H. Pylori",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Helicobacter Pylori Infection"
      ],
      "interventions": [
        {
          "name": "OBMT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Forest Laboratories",
      "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": "2008-08",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2017-02-09",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 2,
      "location_summary": "Ann Arbor, Michigan • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00712413"
    },
    {
      "nct_id": "NCT02874430",
      "title": "Metformin Hydrochloride and Doxycycline in Treating Patients With Localized Breast or Uterine Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Carcinoma",
        "Endometrial Clear Cell Adenocarcinoma",
        "Endometrial Serous Adenocarcinoma",
        "Uterine Corpus Cancer",
        "Uterine Corpus Carcinosarcoma"
      ],
      "interventions": [
        {
          "name": "Metformin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 29,
      "start_date": "2016-06-08",
      "completion_date": "2020-12-11",
      "has_results": true,
      "last_update_posted_date": "2026-04-22",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02874430"
    },
    {
      "nct_id": "NCT00873808",
      "title": "S0307A, Long-Term Bone Quality in Women With Breast Cancer Enrolled on Clinical Trial SWOG-S0307",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "clodronate disodium",
          "type": "DRUG"
        },
        {
          "name": "demeclocycline hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "ibandronate sodium",
          "type": "DRUG"
        },
        {
          "name": "tetracycline hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "zoledronic acid",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "adjuvant therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "computed tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "dual x-ray absorptiometry",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2008-10",
      "completion_date": "2010-02",
      "has_results": false,
      "last_update_posted_date": "2013-04-10",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00873808"
    },
    {
      "nct_id": "NCT01539564",
      "title": "Arestin - Use in Subjects With Peri-Implantitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Peri-Implantitis"
      ],
      "interventions": [
        {
          "name": "Minocycline HCl Microspheres",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "OraPharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 215,
      "start_date": "2012-04",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2014-06-26",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • Gainsville, Florida • Augusta, Georgia + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Gainsville",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01539564"
    },
    {
      "nct_id": "NCT05826912",
      "title": "Multi-Arm Multi-Stage Adaptive Platform Trial (APT) for the Acute Treatment of Traumatic Brain Injury",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "Atorvastatin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Minocycline Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Candesartan Cilexetil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 672,
      "start_date": "2024-08-01",
      "completion_date": "2029-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-22",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 18,
      "location_summary": "San Francisco, California • Indianapolis, Indiana • Lexington, Kentucky + 14 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05826912"
    },
    {
      "nct_id": "NCT04482686",
      "title": "Trial of Combination Therapy to Treat COVID-19 Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID",
        "Covid-19",
        "Corona Virus Infection",
        "Coronavirus Infection",
        "Coronavirus-19",
        "SARS-CoV2",
        "SARS-CoV Infection"
      ],
      "interventions": [
        {
          "name": "Ivermectin",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline Hcl",
          "type": "DRUG"
        },
        {
          "name": "Zinc",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "ProgenaBiome",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 31,
      "start_date": "2020-12-09",
      "completion_date": "2022-07-15",
      "has_results": false,
      "last_update_posted_date": "2024-09-24",
      "last_synced_at": "2026-10-04T23:48:58.546Z",
      "location_count": 1,
      "location_summary": "Ventura, California",
      "locations": [
        {
          "city": "Ventura",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04482686"
    }
  ]
}