{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=PTG-300",
    "query": {
      "intervention": "PTG-300"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T15:45:33.473Z",
  "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": "NCT04054921",
      "title": "Safety Study for Beta Thalassemia Subjects on PTG-300",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "β-thalassemia",
        "Ineffective Erythropoiesis"
      ],
      "interventions": [
        {
          "name": "PTG-300",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Protagonist Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 34,
      "start_date": "2019-05-10",
      "completion_date": "2020-07-31",
      "has_results": false,
      "last_update_posted_date": "2021-07-16",
      "last_synced_at": "2026-09-07T15:45:33.473Z",
      "location_count": 2,
      "location_summary": "Oakland, California • Boston, Massachusetts",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04054921"
    },
    {
      "nct_id": "NCT04057040",
      "title": "Hepcidin Mimetic in Patients With Polycythemia Vera (REVIVE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Polycythemia Vera"
      ],
      "interventions": [
        {
          "name": "PTG-300",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Protagonist Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2019-10-01",
      "completion_date": "2024-06-17",
      "has_results": false,
      "last_update_posted_date": "2025-08-07",
      "last_synced_at": "2026-09-07T15:45:33.473Z",
      "location_count": 14,
      "location_summary": "Phoenix, Arizona • Greenbrae, California • Palo Alto, California + 10 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Greenbrae",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Westwood",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04057040"
    },
    {
      "nct_id": "NCT05210790",
      "title": "A Phase 3 Study of Rusfertide in Patients With Polycythemia Vera",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Polycythemia Vera"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Rusfertide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Protagonist Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 293,
      "start_date": "2022-04-01",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2025-08-07",
      "last_synced_at": "2026-09-07T15:45:33.473Z",
      "location_count": 80,
      "location_summary": "Mobile, Alabama • Glendale, Arizona • Duarte, California + 66 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Greenbrae",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05210790"
    },
    {
      "nct_id": "NCT03802201",
      "title": "Study of PTG-300 in Non-Transfusion Dependent and Transfusion-Dependent Beta-Thalassemia Subjects With Chronic Anemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "β-thalassemia",
        "Ineffective Erythropoiesis",
        "Chronic Anemia"
      ],
      "interventions": [
        {
          "name": "PTG-300",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Protagonist Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 63,
      "start_date": "2018-12-19",
      "completion_date": "2020-07-31",
      "has_results": false,
      "last_update_posted_date": "2021-07-16",
      "last_synced_at": "2026-09-07T15:45:33.473Z",
      "location_count": 3,
      "location_summary": "Oakland, California • Boston, Massachusetts • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03802201"
    },
    {
      "nct_id": "NCT04202965",
      "title": "PTG-300 in Subjects With Hereditary Hemochromatosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hereditary Hemochromatosis"
      ],
      "interventions": [
        {
          "name": "PTG-300",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Protagonist Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2020-03-19",
      "completion_date": "2022-02-15",
      "has_results": true,
      "last_update_posted_date": "2025-08-20",
      "last_synced_at": "2026-09-07T15:45:33.473Z",
      "location_count": 9,
      "location_summary": "Fayetteville, Georgia • Bethesda, Maryland • Charlotte, North Carolina + 5 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Georgia"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Conroe",
          "state": "Texas"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04202965"
    },
    {
      "nct_id": "NCT06033586",
      "title": "Study to Evaluate the Long-term Safety of Rusfertide (PTG-300) in Subjects With Polycythemia Vera",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Polycythemia Vera"
      ],
      "interventions": [
        {
          "name": "Open-label rusfertide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Protagonist Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 46,
      "start_date": "2024-01-22",
      "completion_date": "2027-04-01",
      "has_results": false,
      "last_update_posted_date": "2025-08-06",
      "last_synced_at": "2026-09-07T15:45:33.473Z",
      "location_count": 1,
      "location_summary": "Covington, Louisiana",
      "locations": [
        {
          "city": "Covington",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06033586"
    }
  ]
}