{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=L-Phenylalanine&page=2",
    "query": {
      "condition": "L-Phenylalanine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=L-Phenylalanine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T12:28:41.340Z",
  "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": "NCT00065299",
      "title": "Low Phenylalanine Diet for Mothers With Phenylketonuria (PKU)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Phenylketonuria"
      ],
      "interventions": [
        {
          "name": "Restricted phenylalanine diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "0 Years and older · Female only"
      },
      "enrollment_count": 572,
      "start_date": "1984-05",
      "completion_date": "2000-04",
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • Chicago, Illinois • Galveston, Texas",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00065299"
    },
    {
      "nct_id": "NCT03419819",
      "title": "Evaluation of PKU Sphere",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Phenylketonurias"
      ],
      "interventions": [
        {
          "name": "PKU Sphere",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Vitaflo International, Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2018-05-01",
      "completion_date": "2019-05-21",
      "has_results": false,
      "last_update_posted_date": "2024-02-16",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03419819"
    },
    {
      "nct_id": "NCT00104260",
      "title": "Study to Evaluate the Response to and Safety of an 8-Day Course of Phenoptin™ Treatment in Subjects With Phenylketonuria",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Phenylketonurias"
      ],
      "interventions": [
        {
          "name": "sapropterin dihydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "BioMarin Pharmaceutical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "8 Years and older"
      },
      "enrollment_count": 700,
      "start_date": "2004-12",
      "completion_date": "2005-11",
      "has_results": false,
      "last_update_posted_date": "2007-04-09",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 13,
      "location_summary": "Los Angeles, California • Oakland, California • New Haven, Connecticut + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00104260"
    },
    {
      "nct_id": "NCT04768348",
      "title": "Natural History Clinical Study in Adult PKU",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Phenylketonurias",
        "PKU"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Homology Medicines, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 7,
      "start_date": "2021-04-20",
      "completion_date": "2023-08-01",
      "has_results": false,
      "last_update_posted_date": "2023-08-25",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • Orange, California • Tampa, Florida + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Topeka",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04768348"
    },
    {
      "nct_id": "NCT06332807",
      "title": "AAV Gene Therapy Clinical Study in Adult Classic PKU (PHEdom)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Phenylketonurias"
      ],
      "interventions": [
        {
          "name": "NGGT002",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "NGGT INC.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 12,
      "start_date": "2025-01-10",
      "completion_date": "2030-12-30",
      "has_results": false,
      "last_update_posted_date": "2025-12-02",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 5,
      "location_summary": "Orange, California • Minneapolis, Minnesota • Morristown, New Jersey + 2 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Morristown",
          "state": "New Jersey"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06332807"
    },
    {
      "nct_id": "NCT05356377",
      "title": "Preliminary Study of Brain Effects of Palynziq-Related Changes in Phenylalanine in Individuals With PKU",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Phenylketonurias"
      ],
      "interventions": [
        {
          "name": "Pegvaliase-Pqpz",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Missouri-Columbia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 6,
      "start_date": "2022-05-25",
      "completion_date": "2025-07-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-29",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Columbia, Missouri",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05356377"
    },
    {
      "nct_id": "NCT02445521",
      "title": "Testing of Four Home Phenylalanine Monitoring Prototype Devices",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Phenylketonurias"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 9,
      "start_date": "2015-05",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2015-12-11",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Decatur, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02445521"
    },
    {
      "nct_id": "NCT00841100",
      "title": "Kuvan Therapy in Phenylketonuria (PKU): The Effect of Blood Phenylalanine Concentration on Kuvan Response",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Phenylketonuria"
      ],
      "interventions": [
        {
          "name": "Kuvan",
          "type": "DRUG"
        },
        {
          "name": "Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2008-12",
      "completion_date": "2011-07-19",
      "has_results": true,
      "last_update_posted_date": "2019-12-03",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00841100"
    },
    {
      "nct_id": "NCT01428258",
      "title": "Phase 2 Study of Glycomacropeptide Versus Amino Acid Diet for Management of Phenylketonuria",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Phenylketonuria"
      ],
      "interventions": [
        {
          "name": "GMP Diet/GMP Medical Foods",
          "type": "OTHER"
        },
        {
          "name": "AA Diet/AA Medical Foods",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "12 Years to 45 Years"
      },
      "enrollment_count": 32,
      "start_date": "2011-09",
      "completion_date": "2016-05",
      "has_results": true,
      "last_update_posted_date": "2018-08-24",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Madison, Wisconsin",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01428258"
    },
    {
      "nct_id": "NCT00104247",
      "title": "Study to Evaluate the Safety and Efficacy of Phenoptin™ in Subjects With Phenylketonuria Who Have Elevated Phenylalanine Levels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Phenylketonurias"
      ],
      "interventions": [
        {
          "name": "sapropterin dihydrochloride, 6R-BH4, tetrahydrobiopterin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "BioMarin Pharmaceutical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "8 Years and older"
      },
      "enrollment_count": 89,
      "start_date": "2005-03",
      "completion_date": "2006-02",
      "has_results": true,
      "last_update_posted_date": "2014-07-23",
      "last_synced_at": "2026-07-24T12:28:41.340Z",
      "location_count": 13,
      "location_summary": "Los Angeles, California • Oakland, California • New Haven, Connecticut + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00104247"
    }
  ]
}