{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sodium+phenylbutyrate&page=3",
    "query": {
      "intervention": "Sodium phenylbutyrate",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 52,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sodium+phenylbutyrate&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sodium+phenylbutyrate&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T16:57:20.835Z",
  "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": "NCT00590538",
      "title": "Phenylbutyrate/Genistein Duotherapy in Delta F508-Heterozygotes (for Cystic Fibrosis)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "Sodium 4-Phenylbutyrate",
          "type": "DRUG"
        },
        {
          "name": "Genistein (Unconjugated Isoflavones 100)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2003-02",
      "completion_date": "2008-12",
      "has_results": true,
      "last_update_posted_date": "2011-06-30",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00590538"
    },
    {
      "nct_id": "NCT00002909",
      "title": "Phenylbutyrate in Treating Patients With Refractory Solid Tumors or Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoma",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "oral sodium phenylbutyrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "1997-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-02-05",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002909"
    },
    {
      "nct_id": "NCT00002796",
      "title": "Phase I-II Study of Fluorouracil in Combination With Phenylbutyrate in Advanced Colorectal Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Mucinous Adenocarcinoma of the Colon",
        "Mucinous Adenocarcinoma of the Rectum",
        "Recurrent Colon Cancer",
        "Recurrent Rectal Cancer",
        "Signet Ring Adenocarcinoma of the Colon",
        "Signet Ring Adenocarcinoma of the Rectum",
        "Stage IVA Colon Cancer",
        "Stage IVA Rectal Cancer",
        "Stage IVB Colon Cancer",
        "Stage IVB Rectal Cancer"
      ],
      "interventions": [
        {
          "name": "fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "sodium phenylbutyrate",
          "type": "DRUG"
        },
        {
          "name": "indomethacin",
          "type": "DRUG"
        },
        {
          "name": "recombinant interferon gamma",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 46,
      "start_date": "1997-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-02-01",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002796"
    },
    {
      "nct_id": "NCT00107770",
      "title": "Safety Study of Oral Sodium Phenylbutyrate in Subjects With ALS (Amyotrophic Lateral Sclerosis)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Amyotrophic Lateral Sclerosis"
      ],
      "interventions": [
        {
          "name": "sodium phenylbutyrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2005-04",
      "completion_date": "2007-09",
      "has_results": false,
      "last_update_posted_date": "2010-01-11",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 10,
      "location_summary": "Iowa City, Iowa • Lexington, Kentucky • Baltimore, Maryland + 7 more",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Bedford",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00107770"
    },
    {
      "nct_id": "NCT02323100",
      "title": "Glycerol Phenylbutyrate Corrector Therapy For CF (Cystic Fibrosis)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "Ravicti low dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Jewish Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2018-12-02",
      "completion_date": "2022-03-01",
      "has_results": true,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 3,
      "location_summary": "Denver, Colorado • Baltimore, Maryland • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02323100"
    },
    {
      "nct_id": "NCT07125066",
      "title": "An Individual Patient, Open Label Study to Use ACER-001 to Treat Combined D,L-2 Hydroxyglutaric Aciduria (C-2HGA)",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Combined D,L-2-hydroxyglutaric Aciduria"
      ],
      "interventions": [
        {
          "name": "Sodium phenylbutyrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jerry Vockley, MD, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "MALE",
        "summary": "Male only"
      },
      "enrollment_count": 1,
      "start_date": "2025-07-30",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07125066"
    },
    {
      "nct_id": "NCT03335488",
      "title": "Study of Glycerol Phenylbutyrate & Sodium Phenylbutyrate in Phenylbutyrate Naïve Patients With Urea Cycle Disorders (UCDs)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Urea Cycle Disorder"
      ],
      "interventions": [
        {
          "name": "RAVICTI",
          "type": "DRUG"
        },
        {
          "name": "NaPBA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "Up to 99 Years"
      },
      "enrollment_count": 16,
      "start_date": "2018-02-20",
      "completion_date": "2022-12-20",
      "has_results": true,
      "last_update_posted_date": "2024-07-01",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 6,
      "location_summary": "Gainesville, Florida • New York, New York • Cleveland, Ohio + 3 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03335488"
    },
    {
      "nct_id": "NCT00528268",
      "title": "Study to Evaluate Sodium Phenylbutyrate in Pre-symptomatic Infants With Spinal Muscular Atrophy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Spinal Muscular Atrophy"
      ],
      "interventions": [
        {
          "name": "Sodium phenylbutyrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "6 Months",
        "sex": "ALL",
        "summary": "1 Day to 6 Months"
      },
      "enrollment_count": 22,
      "start_date": "2007-07",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2025-02-28",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00528268"
    },
    {
      "nct_id": "NCT06773026",
      "title": "Study of Sodium Phenylbutyrate (ACER-001) for the Treatment of Pediatric and Adults Patients With Medium Chain Acyl-CoA Dehydrogenase Deficiency (MCADD)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Medium-chain Acyl-CoA Dehydrogenase Deficiency"
      ],
      "interventions": [
        {
          "name": "Sodium phenylbutyrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jerry Vockley, MD, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2025-06-30",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06773026"
    },
    {
      "nct_id": "NCT01948427",
      "title": "Observational Study That Will Collect Information on Patients With Urea Cycle Disorders (UCDs)",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Urea Cycle Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 203,
      "start_date": "2013-09-25",
      "completion_date": "2020-02-24",
      "has_results": true,
      "last_update_posted_date": "2024-07-01",
      "last_synced_at": "2026-10-09T16:57:20.835Z",
      "location_count": 1,
      "location_summary": "Blue Bell, Pennsylvania",
      "locations": [
        {
          "city": "Blue Bell",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01948427"
    }
  ]
}