{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pegylated-Interferon-lambda",
    "query": {
      "intervention": "Pegylated-Interferon-lambda"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pegylated-Interferon-lambda&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T06:04:51.608Z",
  "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": "NCT05953545",
      "title": "Peginterferon Lambda and Lonafarnib Boosted With Ritonavir 48-Week Combination Therapy for Delta Hepatitis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Hepatitis Delta"
      ],
      "interventions": [
        {
          "name": "Peginterferon Lambda",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 0,
      "start_date": "2024-05-22",
      "completion_date": "2024-05-22",
      "has_results": false,
      "last_update_posted_date": "2024-05-23",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05953545"
    },
    {
      "nct_id": "NCT01795911",
      "title": "Safety Study of Pegylated Interferon Lambda Plus Single or 2 Direct Antiviral Agents With Ribavirin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Pegylated Interferon Lambda",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ribasphere",
          "type": "DRUG"
        },
        {
          "name": "Daclatasvir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 165,
      "start_date": "2013-03",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2015-10-09",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01795911"
    },
    {
      "nct_id": "NCT01001754",
      "title": "Efficacy and Safety Study of PEG-rIL-29 Plus Ribavirin to Treat Chronic Hepatitis C Virus Infection",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis C, Chronic"
      ],
      "interventions": [
        {
          "name": "PEG-rIL-29",
          "type": "DRUG"
        },
        {
          "name": "Peginterferon alfa-2a",
          "type": "DRUG"
        },
        {
          "name": "Ribavirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ZymoGenetics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 600,
      "start_date": "2010-05",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2011-12-05",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 29,
      "location_summary": "Beverly Hills, California • Coronado, California • La Jolla, California + 26 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Coronado",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Palm Springs",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01001754"
    },
    {
      "nct_id": "NCT05070364",
      "title": "Phase 3 Study to Evaluate the Efficacy and Safety of Peginterferon Lambda for 48 Weeks in Patients With Chronic HDV",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis Delta Virus"
      ],
      "interventions": [
        {
          "name": "Peginterferon Lambda-1a",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eiger BioPharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 150,
      "start_date": "2021-12-21",
      "completion_date": "2025-01-15",
      "has_results": false,
      "last_update_posted_date": "2023-08-25",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Redwood City, California • San Francisco, California + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05070364"
    },
    {
      "nct_id": "NCT00565539",
      "title": "Study of PEG-rIL-29 (or PEG-IFN Lambda) in Subjects With Chronic Hepatitis C Virus Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hepatitis C, Chronic"
      ],
      "interventions": [
        {
          "name": "PEGylated recombinant interleukin 29 (PEG-rIL-29)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ZymoGenetics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 56,
      "start_date": "2007-12",
      "completion_date": "2009-10",
      "has_results": false,
      "last_update_posted_date": "2009-10-07",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 10,
      "location_summary": "Chicago, Illinois • Detroit, Michigan • Rochester, Minnesota + 6 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Newark",
          "state": "New Jersey"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00565539"
    },
    {
      "nct_id": "NCT01741545",
      "title": "Safety and Efficacy Study in Subjects With Chronic HCV and Underlying Hemophilia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis C Virus"
      ],
      "interventions": [
        {
          "name": "Pegylated-Interferon-lambda",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ribavirin",
          "type": "DRUG"
        },
        {
          "name": "Daclatasvir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 71,
      "start_date": "2013-03-31",
      "completion_date": "2015-01-31",
      "has_results": true,
      "last_update_posted_date": "2020-08-11",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 4,
      "location_summary": "Palo Alto, California • Chicago, Illinois • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01741545"
    },
    {
      "nct_id": "NCT01447394",
      "title": "Safety and Efficacy Study of Pegylated Interferon Lambda Versus Pegylated Interferon Alfa, Plus Ribavirin in Subjects With Hepatitis C",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis C Virus (HCV)"
      ],
      "interventions": [
        {
          "name": "Pegylated Interferon Lambda",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pegylated Interferon Alfa-2a",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ribavirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 0,
      "start_date": "2012-03",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2012-02-03",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Rochester, New York • Houston, Texas",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01447394"
    },
    {
      "nct_id": "NCT01309932",
      "title": "Safety Study of Pegylated Interferon Lambda Plus Single or 2 Direct Antiviral Agents With Ribavirin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Pegylated Interferon Lambda (pegIFNλ)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "BMS-790052 (NS5A Inhibitor)",
          "type": "DRUG"
        },
        {
          "name": "Ribavirin (RBV)",
          "type": "DRUG"
        },
        {
          "name": "BMS-650032 (NS3 Protease Inhibitor)",
          "type": "DRUG"
        },
        {
          "name": "Pegylated Interferon Alfa-2a (pegIFNα-2a)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo (PBO) for BMS-650032 (Placebo for NS3 Protease Inhibitor)",
          "type": "DRUG"
        },
        {
          "name": "Placebo (PBO) for BMS-790052 (Placebo for NS5A Inhibitor)",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Ribavirin (RBV)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 165,
      "start_date": "2011-03",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2015-10-09",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 13,
      "location_summary": "Phoenix, Arizona • Palm Springs, California • Aurora, Colorado + 10 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Palm Springs",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Lutherville",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01309932"
    },
    {
      "nct_id": "NCT01866930",
      "title": "Efficacy and Safety Study of Pegylated Interferon Lambda-1a With Ribavirin and Daclatasvir, to Treat naïve Subjects With Chronic HCV Genotypes 1, 2, 3, and 4 Who Are Co-infected With HIV",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Hepatitis C Infection"
      ],
      "interventions": [
        {
          "name": "Pegylated Interferon Lambda-1a",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Daclatasvir (DCV)",
          "type": "DRUG"
        },
        {
          "name": "Ribasphere (RBV)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 453,
      "start_date": "2013-07-11",
      "completion_date": "2015-08-27",
      "has_results": true,
      "last_update_posted_date": "2023-06-13",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 13,
      "location_summary": "Rialto, California • San Francisco, California • Aurora, Colorado + 7 more",
      "locations": [
        {
          "city": "Rialto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01866930"
    },
    {
      "nct_id": "NCT04343976",
      "title": "Pegylated Interferon Lambda Treatment for COVID-19",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19",
        "COVID"
      ],
      "interventions": [
        {
          "name": "Pegylated interferon lambda",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Raymond Chung",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2020-06-22",
      "completion_date": "2021-07-30",
      "has_results": true,
      "last_update_posted_date": "2022-07-21",
      "last_synced_at": "2026-09-05T06:04:51.608Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04343976"
    }
  ]
}