{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Subjective+Drug+Effects",
    "query": {
      "condition": "Subjective Drug Effects"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 29,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Subjective+Drug+Effects&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T14:30:47.527Z",
  "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": "NCT03652740",
      "title": "Effects of Commonly Used Medications on Mood and Choice",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Methylphenidate",
          "type": "DRUG"
        },
        {
          "name": "Nicotine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "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": 25,
      "start_date": "2018-10-02",
      "completion_date": "2024-02-01",
      "has_results": true,
      "last_update_posted_date": "2026-02-02",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03652740"
    },
    {
      "nct_id": "NCT00734461",
      "title": "Study to Evaluate the Subjective Effects of PTI-801 in Non-Physically Dependent Subjects With a History of Drug Abuse",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid-Related Disorders"
      ],
      "interventions": [
        {
          "name": "oxycodone and naltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pain Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 14,
      "start_date": "2007-08",
      "completion_date": "2009-03",
      "has_results": false,
      "last_update_posted_date": "2016-05-02",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00734461"
    },
    {
      "nct_id": "NCT01844687",
      "title": "Laboratory Study of Cannabidiol on the Effects of Smoked Marijuana",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Smoking, Marijuana"
      ],
      "interventions": [
        {
          "name": "CBD",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute on Drug Abuse (NIDA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 50,
      "start_date": "2013-05",
      "completion_date": "2014-10",
      "has_results": true,
      "last_update_posted_date": "2019-12-09",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 3,
      "location_summary": "Lexington, Kentucky • New York, New York • Charleston, South Carolina",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01844687"
    },
    {
      "nct_id": "NCT00000262",
      "title": "Effects of Combined Sevoflurane and Nitrous Oxide Inhalation - 14",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid-Related Disorders",
        "Substance-Related Disorders"
      ],
      "interventions": [
        {
          "name": "30% Nitrous oxide",
          "type": "DRUG"
        },
        {
          "name": "0.4% Sevoflurane",
          "type": "DRUG"
        },
        {
          "name": "0.2% sevoflurane",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 20,
      "start_date": "1996-11",
      "completion_date": "1999-02",
      "has_results": false,
      "last_update_posted_date": "2015-05-27",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000262"
    },
    {
      "nct_id": "NCT04451863",
      "title": "Analgesic and Subjective Effects of Terpenes",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pain",
        "Abuse, Drug"
      ],
      "interventions": [
        {
          "name": "Low THC",
          "type": "DRUG"
        },
        {
          "name": "High THC",
          "type": "DRUG"
        },
        {
          "name": "Low Myrcene",
          "type": "DRUG"
        },
        {
          "name": "High Myrcene",
          "type": "DRUG"
        },
        {
          "name": "Low Beta-Caryophyllene",
          "type": "DRUG"
        },
        {
          "name": "High Beta-Caryophyllene",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "21 Years to 55 Years"
      },
      "enrollment_count": 45,
      "start_date": "2021-12-15",
      "completion_date": "2026-07-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04451863"
    },
    {
      "nct_id": "NCT00000251",
      "title": "Effects of Subanesthetic Concentrations of Isoflurane/Nitrous Oxide - 3",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid-Related Disorders",
        "Substance-Related Disorders"
      ],
      "interventions": [
        {
          "name": "30% N2O",
          "type": "DRUG"
        },
        {
          "name": "0.2% isoflurane",
          "type": "DRUG"
        },
        {
          "name": "0.4% isoflurane",
          "type": "DRUG"
        },
        {
          "name": "100% oxygen",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "32 Years",
        "sex": "ALL",
        "summary": "21 Years to 32 Years"
      },
      "enrollment_count": 10,
      "start_date": "1994-04",
      "completion_date": "1996-01",
      "has_results": false,
      "last_update_posted_date": "2015-12-02",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000251"
    },
    {
      "nct_id": "NCT07107139",
      "title": "Influence of Authorized Smokeless Tobacco Product Modified Risk Claims II: Laboratory Assessment of Sensory and Subjective Effects",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smokeless Tobacco"
      ],
      "interventions": [
        {
          "name": "Copenhagen group",
          "type": "OTHER"
        },
        {
          "name": "Snus group",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2026-05-11",
      "completion_date": "2027-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07107139"
    },
    {
      "nct_id": "NCT04708106",
      "title": "Characterization of Product Use in Smokers Switching From Cigarettes to a RELX Electronic Nicotine Delivery System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Electronic Cigarette Use"
      ],
      "interventions": [
        {
          "name": "RELX ENDS Tobacco Flavor",
          "type": "OTHER"
        },
        {
          "name": "RELX ENDS Menthol Flavor",
          "type": "OTHER"
        },
        {
          "name": "RELX ENDS Tobacco and Menthol Flavors",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cheerain HK Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "22 Years to 65 Years"
      },
      "enrollment_count": 194,
      "start_date": "2020-10-15",
      "completion_date": "2021-07-07",
      "has_results": false,
      "last_update_posted_date": "2021-07-22",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 5,
      "location_summary": "Bentonville, Arkansas • Lexington, Kentucky • Springfield, Missouri + 2 more",
      "locations": [
        {
          "city": "Bentonville",
          "state": "Arkansas"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Springfield",
          "state": "Missouri"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        },
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04708106"
    },
    {
      "nct_id": "NCT04315961",
      "title": "Effects of Dietary Conditions on Drug Response",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Blinded drug dose conditions",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 1,
      "start_date": "2020-09-18",
      "completion_date": "2023-02-02",
      "has_results": true,
      "last_update_posted_date": "2024-08-09",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04315961"
    },
    {
      "nct_id": "NCT01589068",
      "title": "Effects of Progesterone on IV Nicotine Induced Changes on BOLD fMRI Signal, Hormones and Subjective Ratings of Stimulant Drugs",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Intravenous Nicotine",
          "type": "DRUG"
        },
        {
          "name": "Progesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mclean Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 0,
      "start_date": "2007-01",
      "completion_date": "2015-12-01",
      "has_results": false,
      "last_update_posted_date": "2024-01-17",
      "last_synced_at": "2026-07-22T14:30:47.527Z",
      "location_count": 1,
      "location_summary": "Belmont, Massachusetts",
      "locations": [
        {
          "city": "Belmont",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01589068"
    }
  ]
}