{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+doxycycline+hyclate&page=3",
    "query": {
      "intervention": "Oral doxycycline hyclate",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 82,
    "total_pages": 9,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+doxycycline+hyclate&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+doxycycline+hyclate&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T06:49:39.777Z",
  "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": "NCT04067011",
      "title": "Velocity 2: An Anthrax Vaccine and Antibiotics Clinical Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anthrax"
      ],
      "interventions": [
        {
          "name": "Ciprofloxacin 500Mg Tablet",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline 100Mg Tablet",
          "type": "DRUG"
        },
        {
          "name": "AV7909",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Emergent BioSolutions",
      "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": 210,
      "start_date": "2019-08-12",
      "completion_date": "2020-03-19",
      "has_results": true,
      "last_update_posted_date": "2025-09-08",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 4,
      "location_summary": "DeLand, Florida • Kansas City, Missouri • Omaha, Nebraska + 1 more",
      "locations": [
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04067011"
    },
    {
      "nct_id": "NCT04297592",
      "title": "Antibiotic Prophylaxis in High-Risk Arthroplasty Patients",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Infections Joint Prosthetic",
        "Overweight or Obesity",
        "MSSA Colonization",
        "MRSA",
        "Chronic Kidney Diseases",
        "Diabetes",
        "Autoimmune Diseases",
        "Inflammatory Disease",
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Cephalexin",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "Cefadroxil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 4618,
      "start_date": "2020-06-11",
      "completion_date": "2028-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-06",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa • Rochester, Minnesota",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04297592"
    },
    {
      "nct_id": "NCT06225570",
      "title": "Weekly Isotretinoin vs Tetracycline for Moderate Acne",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Isotretinoin",
          "type": "DRUG"
        },
        {
          "name": "Tetracycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2025-02-01",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2026-05-18",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06225570"
    },
    {
      "nct_id": "NCT03608774",
      "title": "Trial of Azithromycin vs. Doxycycline for the Treatment of Rectal Chlamydia in MSM",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Anal Chlamydia Infection"
      ],
      "interventions": [
        {
          "name": "Azithromycin",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "MALE",
        "summary": "18 Years to 99 Years · Male only"
      },
      "enrollment_count": 177,
      "start_date": "2018-07-13",
      "completion_date": "2020-02-21",
      "has_results": true,
      "last_update_posted_date": "2021-01-07",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Seattle, Washington",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03608774"
    },
    {
      "nct_id": "NCT00612573",
      "title": "Treatment of Moderate to Severe Facial Acne Vulgaris",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "Doxycycline 0.6 mg/kg/day",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline 1.2 mg/kg/day",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline 2.4 mg/kg/day",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Warner Chilcott",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "12 Years to 45 Years"
      },
      "enrollment_count": 257,
      "start_date": "2008-02",
      "completion_date": "2008-12",
      "has_results": true,
      "last_update_posted_date": "2013-04-22",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 23,
      "location_summary": "Encino, California • Fremont, California • Los Angeles, California + 20 more",
      "locations": [
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00612573"
    },
    {
      "nct_id": "NCT05399290",
      "title": "Subantimicrobial Doxycycline in Acne",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acne Vulgaris",
        "Pediatrics"
      ],
      "interventions": [
        {
          "name": "Doxycycline Hyclate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Michigan State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "13 Years to 17 Years"
      },
      "enrollment_count": 22,
      "start_date": "2020-11-19",
      "completion_date": "2021-11-08",
      "has_results": true,
      "last_update_posted_date": "2023-04-03",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 1,
      "location_summary": "Lansing, Michigan",
      "locations": [
        {
          "city": "Lansing",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05399290"
    },
    {
      "nct_id": "NCT07215325",
      "title": "Got Doxy- 'Flipping the Script' on STI PEP",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sexually Transmitted Infections (STI)"
      ],
      "interventions": [
        {
          "name": "Doxycycline monohydrate 200 mg",
          "type": "DRUG"
        },
        {
          "name": "Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 200,
      "start_date": "2025-10-13",
      "completion_date": "2029-04-13",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07215325"
    },
    {
      "nct_id": "NCT05853120",
      "title": "Doxy-Post-exposure Prophylaxis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sexually Transmitted Diseases"
      ],
      "interventions": [
        {
          "name": "Doxycycline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 45,
      "start_date": "2023-05-31",
      "completion_date": "2024-12-24",
      "has_results": true,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05853120"
    },
    {
      "nct_id": "NCT05296629",
      "title": "A Randomized, Double-Blind Study to Assess the Safety, Efficacy and Tolerability of Oral DFD-29 Capsules for the Treatment of Rosacea.",
      "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": 323,
      "start_date": "2022-03-14",
      "completion_date": "2023-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-12-03",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 27,
      "location_summary": "Rogers, Arkansas • Cerritos, California • Fremont, California + 21 more",
      "locations": [
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05296629"
    },
    {
      "nct_id": "NCT02569437",
      "title": "Doxycycline in Treating Patients With Chronic Rhinosinusitis With Nasal Polyps",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Polyp of Nasal Sinus"
      ],
      "interventions": [
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "nasal saline spray",
          "type": "DRUG"
        },
        {
          "name": "Flonase",
          "type": "DRUG"
        },
        {
          "name": "sugar pill",
          "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": 49,
      "start_date": "2014-09",
      "completion_date": "2016-08",
      "has_results": true,
      "last_update_posted_date": "2018-01-09",
      "last_synced_at": "2026-10-08T06:49:39.777Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02569437"
    }
  ]
}