{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tuberculin+Purified+Protein+Derivative&page=2",
    "query": {
      "intervention": "Tuberculin Purified Protein Derivative",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 33,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tuberculin+Purified+Protein+Derivative&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tuberculin+Purified+Protein+Derivative&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T10:18:55.184Z",
  "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": "NCT00128193",
      "title": "Leprosy Skin Test Antigens Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leprosy"
      ],
      "interventions": [
        {
          "name": "Tuberculin, Purified Protein Derivative",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MLSA-LAM",
          "type": "OTHER"
        },
        {
          "name": "MLCwA",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 260,
      "start_date": "2002-04",
      "completion_date": "2009-09",
      "has_results": true,
      "last_update_posted_date": "2014-12-24",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00128193"
    },
    {
      "nct_id": "NCT00589953",
      "title": "High-Dose Erythropoietin in Extremely Premature Infants to Prevent/Attenuate Brain Injury: A Phase II Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Infant, Premature",
        "Erythropoietin",
        "Brain Injury",
        "Intraventricular Hemorrhage",
        "Periventricular Leukomalacia",
        "Neurodevelopmental Outcomes",
        "Randomized Clinical Trial"
      ],
      "interventions": [
        {
          "name": "Erythropoietin",
          "type": "DRUG"
        },
        {
          "name": "Saline placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Atlantic Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "24 Hours",
        "sex": "ALL",
        "summary": "Up to 24 Hours"
      },
      "enrollment_count": 22,
      "start_date": "2007-07",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2013-07-30",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "Morristown, New Jersey",
      "locations": [
        {
          "city": "Morristown",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00589953"
    },
    {
      "nct_id": "NCT04742816",
      "title": "Renal Effects of Hormones/Biomarkers in Transgender PrEP Recipients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Transgender",
        "Renal Function",
        "Hormone Replacement Therapy"
      ],
      "interventions": [
        {
          "name": "IHX-CL measurements",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Iohexol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 42,
      "start_date": "2020-09-17",
      "completion_date": "2021-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-03-03",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04742816"
    },
    {
      "nct_id": "NCT01674205",
      "title": "Study of Immune Responses in Healthy Adults Receiving Live Influenza Virus Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "A/swine/Missouri/4296424/2006 (H2N3) x A/Ann Arbor/6/60 ca (H2N3 MO 2006/AA ca)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "A/chicken/Hong Kong/G9/97 (H9N2) x A/Ann Arbor/6/60 ca (H9N2 G9/AA ca)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "2012-2013 trivalent seasonal live attenuated influenza vaccine (FluMist®)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaccine placebo (Leibovitz-15 [L-15])",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaccine placebo (FluMist®)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "42 Years",
        "sex": "ALL",
        "summary": "18 Years to 42 Years"
      },
      "enrollment_count": 36,
      "start_date": "2012-09",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2015-12-15",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01674205"
    },
    {
      "nct_id": "NCT01798095",
      "title": "Equivalence Study of Specificity of PPD",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Tuberculosis Infection"
      ],
      "interventions": [
        {
          "name": "Aplisol@ PPD material",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Reference Standard",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "JHP Pharmaceuticals LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 152,
      "start_date": "2013-02",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2013-02-25",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "Tyler, Texas",
      "locations": [
        {
          "city": "Tyler",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01798095"
    },
    {
      "nct_id": "NCT01622140",
      "title": "Prospective Comparison of the Tuberculin Skin Test and Interferon-Gamma Release Assays in Diagnosing Infection With Mycobacterium Tuberculosis and in Predicting Progression to Tuberculosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Latent Tuberculosis Infection",
        "Tuberculosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Centers for Disease Control and Prevention",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 21334,
      "start_date": "2012-10",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-01-28",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 10,
      "location_summary": "Phoenix, Arizona • Richmond, California • Denver, Colorado + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Richmond",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01622140"
    },
    {
      "nct_id": "NCT05565625",
      "title": "A Study to Evaluate the Whitening Effect of Mineral Sunscreens in Multi-Cultural Skin Tones",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sunscreen"
      ],
      "interventions": [
        {
          "name": "Sunscreen A",
          "type": "OTHER"
        },
        {
          "name": "Sunscreen B",
          "type": "OTHER"
        },
        {
          "name": "Sunscreen C",
          "type": "OTHER"
        },
        {
          "name": "Sunscreen D",
          "type": "OTHER"
        },
        {
          "name": "Sunscreen E",
          "type": "OTHER"
        },
        {
          "name": "Sunscreen F",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johnson & Johnson Consumer Inc. (J&JCI)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 97,
      "start_date": "2021-12-29",
      "completion_date": "2022-03-30",
      "has_results": false,
      "last_update_posted_date": "2023-10-25",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "Teaneck, New Jersey",
      "locations": [
        {
          "city": "Teaneck",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05565625"
    },
    {
      "nct_id": "NCT05807412",
      "title": "Spread of PrabotulinumtoxinA-xvfs Versus OnabotulinumtoxinA in the Treatment of Forehead Rhytides",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Rhytides"
      ],
      "interventions": [
        {
          "name": "PrabotulinumtoxinA-Xvfs",
          "type": "DRUG"
        },
        {
          "name": "OnabotulinumtoxinA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lupo Center for Aesthetic and General Dermatology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 10,
      "start_date": "2023-05-01",
      "completion_date": "2024-02-26",
      "has_results": false,
      "last_update_posted_date": "2024-03-13",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05807412"
    },
    {
      "nct_id": "NCT02688309",
      "title": "Pro-permeability and Pro-fibrosis Factors in the Aqueous of Patients With Retinal Diseases",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Macular Edema",
        "Fibrosis of the Retina"
      ],
      "interventions": [
        {
          "name": "Ozurdex",
          "type": "DRUG"
        },
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Anterior Chamber (AC) Tap",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "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": 44,
      "start_date": "2015-01-13",
      "completion_date": "2021-10-28",
      "has_results": false,
      "last_update_posted_date": "2022-07-08",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02688309"
    },
    {
      "nct_id": "NCT00000955",
      "title": "Two-Stage Tuberculin (PPD) Skin Testing in Individuals With Human Immunodeficiency Virus (HIV) Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infections",
        "Tuberculosis"
      ],
      "interventions": [
        {
          "name": "Tuberculin Purified Protein Derivative",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 864,
      "start_date": null,
      "completion_date": "1992-12",
      "has_results": false,
      "last_update_posted_date": "2013-10-01",
      "last_synced_at": "2026-10-06T10:18:55.184Z",
      "location_count": 14,
      "location_summary": "New Haven, Connecticut • Wilmington, Delaware • Washington D.C., District of Columbia + 9 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000955"
    }
  ]
}