{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+powder",
    "query": {
      "intervention": "Placebo powder"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 895,
    "total_pages": 90,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+powder&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T20:28:39.782Z",
  "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": "NCT06735599",
      "title": "Wild Blueberries for Gut, Brain, and Heart Health in Adults With High Blood Pressure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension (Without Type 2 Diabetes Mellitus)",
        "High Blood Pressure",
        "Male",
        "Female",
        "Adult",
        "Cognition",
        "Endothelial Function (Reactive Hyperemia)",
        "Oxidative Stress",
        "Diet",
        "Overweight",
        "Body Composition Measurement",
        "Gut Microbiome",
        "Arterial Stiffness",
        "Caucasian Whites",
        "Inflammation",
        "Microvascular Function"
      ],
      "interventions": [
        {
          "name": "Wild Blueberry",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Georgia State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "45 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-09-17",
      "completion_date": "2027-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06735599"
    },
    {
      "nct_id": "NCT06122038",
      "title": "Impact of Powdered Tart Cherries on Recovery From Repeated Sprints",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammation",
        "Oxidative Stress",
        "Soreness, Muscle",
        "Muscle Damage"
      ],
      "interventions": [
        {
          "name": "Tart Cherry Extract Powder",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Lindenwood 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": 40,
      "start_date": "2023-04-25",
      "completion_date": "2023-12-20",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Saint Charles, Missouri",
      "locations": [
        {
          "city": "Saint Charles",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06122038"
    },
    {
      "nct_id": "NCT03219164",
      "title": "Study of Aztreonam for Inhalation in Children With Cystic Fibrosis and New Infection of the Airways by Pseudomonas Aeruginosa Bacteria",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pseudomonas Aeruginosa Respiratory Tract Infection/Colonization",
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "AZLI",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "3 Months to 18 Years"
      },
      "enrollment_count": 149,
      "start_date": "2017-11-28",
      "completion_date": "2021-09-23",
      "has_results": true,
      "last_update_posted_date": "2022-06-14",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 12,
      "location_summary": "San Francisco, California • Washington D.C., District of Columbia • St. Petersburg, Florida + 8 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "St. Petersburg",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03219164"
    },
    {
      "nct_id": "NCT01561508",
      "title": "Effect of GABA Supplementation in the Progression of Type 1 Diabetes in Children",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "gamma-amino-butyric acid",
          "type": "DRUG"
        },
        {
          "name": "Xylitol",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "8 Years to 18 Years"
      },
      "enrollment_count": 0,
      "start_date": "2012-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2012-12-24",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01561508"
    },
    {
      "nct_id": "NCT02017249",
      "title": "Efficacy Study of Oral Arginine to Improve Immune Function in Glioblastoma Multiforme",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Glioblastoma Multiforme"
      ],
      "interventions": [
        {
          "name": "arginine in powder form",
          "type": "DRUG"
        },
        {
          "name": "Silica and cellulose placebo powder",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Inova Health Care Services",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2014-03",
      "completion_date": "2015-10-06",
      "has_results": false,
      "last_update_posted_date": "2019-09-16",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Fairfax, Virginia",
      "locations": [
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02017249"
    },
    {
      "nct_id": "NCT01072448",
      "title": "12-week Efficacy of Indacaterol",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Indacaterol 75 μg",
          "type": "DRUG"
        },
        {
          "name": "Placebo to indacaterol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 323,
      "start_date": "2010-01",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2011-08-19",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 62,
      "location_summary": "Peoria, Arizona • Pine Bluff, Arkansas • Buena Park, California + 57 more",
      "locations": [
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Pine Bluff",
          "state": "Arkansas"
        },
        {
          "city": "Buena Park",
          "state": "California"
        },
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01072448"
    },
    {
      "nct_id": "NCT01729949",
      "title": "The Acute and Chronic Effects of Fruit Polyphenols on Chronic Disease (PPF)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nutritional and Metabolic Disease",
        "Overweight"
      ],
      "interventions": [
        {
          "name": "Active Treatment Beverage",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Treatment Beverage",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Clinical Nutrition Research Center, Illinois Institute of Technology",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "40 Years to 65 Years"
      },
      "enrollment_count": 34,
      "start_date": "2012-12-01",
      "completion_date": "2018-06-26",
      "has_results": false,
      "last_update_posted_date": "2021-07-27",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01729949"
    },
    {
      "nct_id": "NCT01594008",
      "title": "The Effects of Antioxidants in Blueberry Powder on Inflammation Induced by a Single High Fat Meal.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Breakfast meal with placebo powder",
          "type": "OTHER"
        },
        {
          "name": "Breakfast meal with 2 serving equivalents of blueberries",
          "type": "OTHER"
        },
        {
          "name": "Breakfast meal with 4 serving equivalents of blueberries",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "USDA, Western Human Nutrition Research Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 43,
      "start_date": "2012-01",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2015-03-24",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Davis, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01594008"
    },
    {
      "nct_id": "NCT05933525",
      "title": "Clinical Study to Assess the Efficacy of Once-daily IMM-124E (Travelan®) in a Controlled Human Infection Model.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diarrhea",
        "Travelers Diarrhea",
        "Infectious Diarrhea"
      ],
      "interventions": [
        {
          "name": "Travelan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Immuron Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 63,
      "start_date": "2023-05-29",
      "completion_date": "2024-12-30",
      "has_results": true,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05933525"
    },
    {
      "nct_id": "NCT01694680",
      "title": "Intervention Trial in Early Age-related Macular Degeneration",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Age-related Macular Degeneration (AMD)"
      ],
      "interventions": [
        {
          "name": "Lutein-enriched-egg beverage (NWT-02)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Newtricious R&D BV",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2012-10",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2016-09-21",
      "last_synced_at": "2026-09-04T20:28:39.782Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01694680"
    }
  ]
}