{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Environment&page=7",
    "query": {
      "condition": "Environment",
      "page": 7
    },
    "page_size": 10
  },
  "pagination": {
    "page": 7,
    "page_size": 10,
    "total_count": 823,
    "total_pages": 83,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Environment&page=8&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Environment&page=6&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-30T17:40:49.383Z",
  "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": "NCT00001285",
      "title": "Effects of Sex Hormones on Circadian Rhythm in Men and Women",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bipolar Disorder",
        "Circadian Rhythm",
        "Depressive Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 73,
      "start_date": "1991-08",
      "completion_date": "2000-06",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001285"
    },
    {
      "nct_id": "NCT03950661",
      "title": "Walking Green: The Effects of Walking in Forested and Urban Areas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mood",
        "Stress",
        "Anxiety",
        "Depression",
        "Obesity",
        "Health Behavior",
        "Physical Activity"
      ],
      "interventions": [
        {
          "name": "Walking",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 82,
      "start_date": "2016-06-01",
      "completion_date": "2017-12-08",
      "has_results": false,
      "last_update_posted_date": "2023-05-03",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Evanston, Illinois",
      "locations": [
        {
          "city": "Evanston",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03950661"
    },
    {
      "nct_id": "NCT03039569",
      "title": "Assessing Home Food Environment and Diabetes Self-management Among Adult Type 2 Diabetes Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus, Type 2"
      ],
      "interventions": [
        {
          "name": "Text messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Nebraska Lincoln",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 79,
      "start_date": "2017-02-28",
      "completion_date": "2018-05-31",
      "has_results": true,
      "last_update_posted_date": "2019-06-19",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Lincoln, Nebraska",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03039569"
    },
    {
      "nct_id": "NCT00018096",
      "title": "The Genetics of Environmental Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "LPS endotoxin, saline, HDM",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Environmental Health Sciences (NIEHS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 176,
      "start_date": "2001-06",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2008-05-06",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00018096"
    },
    {
      "nct_id": "NCT03198754",
      "title": "Programmed Environmental Illumination (PEI) of Hospital Rooms to Prevent/Reduce Cancer-Related Fatigue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer-related Problem/Condition",
        "Depression",
        "Circadian Rhythm Disorders"
      ],
      "interventions": [
        {
          "name": "PEI Experimental Light",
          "type": "DEVICE"
        },
        {
          "name": "Comparison Light",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 73,
      "start_date": "2016-07-22",
      "completion_date": "2019-01-23",
      "has_results": true,
      "last_update_posted_date": "2020-08-11",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03198754"
    },
    {
      "nct_id": "NCT05363254",
      "title": "CSD200902: Assessment of Indoor Air Quality for a Heated Tobacco Product With Four Non-Combusted Cigarette Variants in an Environmental Testing Chamber",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use",
        "Smoking",
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Marlboro Gold Box",
          "type": "OTHER"
        },
        {
          "name": "Newport Box",
          "type": "OTHER"
        },
        {
          "name": "Non-combusted cigarette variant 42001401",
          "type": "OTHER"
        },
        {
          "name": "Non-combusted cigarette variant 42001399",
          "type": "OTHER"
        },
        {
          "name": "Non-combusted cigarette variant 40007386",
          "type": "OTHER"
        },
        {
          "name": "Non-combusted cigarette variant 42001402",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "RAI Services Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2022-05-23",
      "completion_date": "2022-07-30",
      "has_results": false,
      "last_update_posted_date": "2024-04-30",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Stockbridge, Georgia",
      "locations": [
        {
          "city": "Stockbridge",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05363254"
    },
    {
      "nct_id": "NCT02529748",
      "title": "Pilot Study to Assess the Quantitative Dermal Transfer Efficiencies of Solids for Multiple Transfer Pathways",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Environmental Exposure"
      ],
      "interventions": [
        {
          "name": "Participants for Surface Skin Sampling",
          "type": "OTHER"
        },
        {
          "name": "Elemental metallic lead",
          "type": "OTHER"
        },
        {
          "name": "Tinopal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 10,
      "start_date": "2015-08-01",
      "completion_date": "2019-07-31",
      "has_results": false,
      "last_update_posted_date": "2019-08-15",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02529748"
    },
    {
      "nct_id": "NCT06483126",
      "title": "The Benefits of Nature for Mood and Cognition in Persons With and Without Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease",
        "Mood",
        "Cognition"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Boston University Charles River Campus",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "40 Years to 100 Years"
      },
      "enrollment_count": 97,
      "start_date": "2024-08-12",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-09-19",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06483126"
    },
    {
      "nct_id": "NCT04146025",
      "title": "Nurtured in Nature",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postpartum Depression",
        "Pregnancy Related",
        "Environmental Exposure"
      ],
      "interventions": [
        {
          "name": "Nature Coach Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 36,
      "start_date": "2019-09-12",
      "completion_date": "2020-03-27",
      "has_results": false,
      "last_update_posted_date": "2020-11-24",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04146025"
    },
    {
      "nct_id": "NCT03507855",
      "title": "The Effect of a Reduced Noise Environment on the Response Time of the Anesthesia Provider",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Noise Exposure"
      ],
      "interventions": [
        {
          "name": "Reduced noise",
          "type": "OTHER"
        },
        {
          "name": "Normal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Joshua Uffman",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 48,
      "start_date": "2018-10-18",
      "completion_date": "2021-11-30",
      "has_results": false,
      "last_update_posted_date": "2024-01-08",
      "last_synced_at": "2026-10-30T17:40:49.383Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03507855"
    }
  ]
}