{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tuberculin%2C+Purified+Protein+Derivative",
    "query": {
      "intervention": "Tuberculin, Purified Protein Derivative"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 33,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tuberculin%2C+Purified+Protein+Derivative&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T20:50:50.531Z",
  "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": "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": "2026-10-01T20:50:50.531Z",
      "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"
    },
    {
      "nct_id": "NCT01379781",
      "title": "Behavioral Change in the Mother-Infant Dyad: Preventing Postpartum Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postpartum Depression"
      ],
      "interventions": [
        {
          "name": "Behavioral Intervention for PPD",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "New York State Psychiatric Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 35 Years · Female only"
      },
      "enrollment_count": 54,
      "start_date": "2011-08",
      "completion_date": "2018-02",
      "has_results": true,
      "last_update_posted_date": "2024-07-03",
      "last_synced_at": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01379781"
    },
    {
      "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": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00128193"
    },
    {
      "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": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05807412"
    },
    {
      "nct_id": "NCT01013623",
      "title": "Stage IV Surgery Versus Best Medical Therapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Stage IV Resectable Melanoma"
      ],
      "interventions": [
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Surgery plus 2 adjuvant doses of BCG",
          "type": "PROCEDURE"
        },
        {
          "name": "best medical therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Saint John's Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2009-11",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2012-09-26",
      "last_synced_at": "2026-10-01T20:50:50.531Z",
      "location_count": 15,
      "location_summary": "Sacramento, California • Santa Monica, California • Chicago, Illinois + 11 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01013623"
    },
    {
      "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": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "Teaneck, New Jersey",
      "locations": [
        {
          "city": "Teaneck",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05565625"
    },
    {
      "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": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01674205"
    },
    {
      "nct_id": "NCT04926922",
      "title": "PREVAIL VIIIa: Evaluation of Latent Tuberculosis Infection Screening Methods in People Living With Retroviral Infection in Liberia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tuberculosis",
        "HIV"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 200,
      "start_date": "2021-07-27",
      "completion_date": "2026-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04926922"
    },
    {
      "nct_id": "NCT00257907",
      "title": "Immune Response to Mycobacterium Tuberculosis Infection",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Latent Tuberculosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 157,
      "start_date": "2005-11-18",
      "completion_date": "2016-02-24",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00257907"
    },
    {
      "nct_id": "NCT04205708",
      "title": "Screening Strategy for Early Diagnosis of Silicosis in At-Risk Populations in Oklahoma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Silicosis",
        "Pneumoconiosis; Silica"
      ],
      "interventions": [
        {
          "name": "Tuberculosis test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Chest X-ray",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Pulmonary Function Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 183,
      "start_date": "2019-01-14",
      "completion_date": "2022-06-10",
      "has_results": false,
      "last_update_posted_date": "2023-12-06",
      "last_synced_at": "2026-10-01T20:50:50.531Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04205708"
    }
  ]
}