{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Low+Oxalate+Diet",
    "query": {
      "intervention": "Low Oxalate Diet"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 21,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Low+Oxalate+Diet&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T00:02:32.309Z",
  "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": "NCT04051346",
      "title": "Dietary Oxalate and Innate Immunity in Kidney Stone Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "Low Oxalate Diet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "High Oxalate Diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 14,
      "start_date": "2021-03-05",
      "completion_date": "2025-05-01",
      "has_results": true,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04051346"
    },
    {
      "nct_id": "NCT05356000",
      "title": "GI Oxalate Absorption",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bariatric Surgery Candidate",
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "Special low-oxalate diet followed by all-day visit to University of Chicago research clinic",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 30,
      "start_date": "2023-01-25",
      "completion_date": "2026-08-02",
      "has_results": false,
      "last_update_posted_date": "2025-08-19",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05356000"
    },
    {
      "nct_id": "NCT04633811",
      "title": "Effect of Weight Loss on Urinary Oxalate Excretion in Obese Calcium Oxalate Kidney Stone Formers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "Low Oxalate Diet before Weight Loss",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Oral load of oxalate and sucralose before Weight Loss",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Optifast VLCD Program",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Optifast VLCD Transition Phase",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Low Oxalate Diet after Weight Loss",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Oral load of oxalate and sucralose after Weight Loss",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "19 Years to 65 Years"
      },
      "enrollment_count": 14,
      "start_date": "2021-12-03",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04633811"
    },
    {
      "nct_id": "NCT05650112",
      "title": "Safety and Tolerability of FB-001 in Healthy Adult Volunteers and Adult Subjects With Enteric Hyperoxaluria",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Enteric Hyperoxaluria"
      ],
      "interventions": [
        {
          "name": "FB-001",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Federation Bio Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "18 Years to 74 Years"
      },
      "enrollment_count": 48,
      "start_date": "2022-11-16",
      "completion_date": "2024-08-31",
      "has_results": false,
      "last_update_posted_date": "2023-01-25",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05650112"
    },
    {
      "nct_id": "NCT06330246",
      "title": "O. Formigenes Colonization in Calcium Oxalate Kidney Stone Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone",
        "Kidney Calculi",
        "Urolithiasis",
        "Urolithiasis, Calcium Oxalate",
        "Nephrolithiasis",
        "Nephrolithiasis, Calcium Oxalate",
        "Oxalate Urolithiasis",
        "Oxaluria"
      ],
      "interventions": [
        {
          "name": "Low oxalate fixed diets pre-colonization",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Moderately high oxalate fixed diets pre-colonization",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Colonization with Oxalobacter formigenes",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Low oxalate fixed diets post-colonization",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Moderately high oxalate fixed diets post-colonization",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-04-17",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 2,
      "location_summary": "Birmingham, Alabama • Dallas, Texas",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06330246"
    },
    {
      "nct_id": "NCT05229952",
      "title": "Assessment of Endogenous Oxalate Synthesis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy",
        "Kidney Stone",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Low-oxalate controlled diet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Primed, continuous intravenous infusion of 13C2-oxalate",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 23,
      "start_date": "2022-02-10",
      "completion_date": "2024-09-09",
      "has_results": true,
      "last_update_posted_date": "2025-05-13",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05229952"
    },
    {
      "nct_id": "NCT04437225",
      "title": "Renal Metabolism of Glycolate to Oxalate",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Low oxalate controlled Diet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Primed, continuous intravenous infusion of 13C2-Glycolate",
          "type": "OTHER"
        },
        {
          "name": "Bolus intravenous infusion of 13C2-Glycolate",
          "type": "OTHER"
        },
        {
          "name": "Oral bolus administration of 13C2-Glycolate",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 15,
      "start_date": "2020-03-12",
      "completion_date": "2030-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04437225"
    },
    {
      "nct_id": "NCT06735924",
      "title": "Influence of Metabolic Syndrome on Endogenous Oxalate Synthesis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "MASLD",
        "Metabolic Dysfunction-Associated Steatotic Liver Disease"
      ],
      "interventions": [
        {
          "name": "Low-oxalate fixed diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2023-04-26",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06735924"
    },
    {
      "nct_id": "NCT05417568",
      "title": "Oxalate-Driven Host Responses in Kidney Stone Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stones"
      ],
      "interventions": [
        {
          "name": "Low Oxalate Diet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "High Oxalate Diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 88,
      "start_date": "2023-05-19",
      "completion_date": "2027-05-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05417568"
    },
    {
      "nct_id": "NCT02503345",
      "title": "Evaluate the Effect of ALLN-177 in Reducing Urinary Oxalate in Patients With Hyperoxaluria and Kidney Stones",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Secondary Hyperoxaluria",
        "Nephrolithiasis",
        "Kidney Stones",
        "Hyperoxaluria",
        "Dietary Hyperoxaluria"
      ],
      "interventions": [
        {
          "name": "ALLN-177 low dose",
          "type": "DRUG"
        },
        {
          "name": "ALLN-177 mid dose",
          "type": "DRUG"
        },
        {
          "name": "ALLN-177 high dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allena Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2015-07",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2018-01-11",
      "last_synced_at": "2026-09-27T00:02:32.309Z",
      "location_count": 16,
      "location_summary": "Los Angeles, California • Daytona Beach, Florida • Jacksonville, Florida + 13 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Daytona Beach",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02503345"
    }
  ]
}