{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Calithera+Biosciences%2C+Inc",
    "query": {
      "sponsor": "Calithera Biosciences, Inc"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 28,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Calithera+Biosciences%2C+Inc&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T03:50:09.757Z",
  "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": "NCT03163667",
      "title": "CB-839 With Everolimus vs. Placebo With Everolimus in Participants With Renal Cell Carcinoma (RCC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Clear Cell Renal Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "CB-839",
          "type": "DRUG"
        },
        {
          "name": "everolimus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "2017-09-06",
      "completion_date": "2020-06-01",
      "has_results": true,
      "last_update_posted_date": "2022-09-15",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 38,
      "location_summary": "Tucson, Arizona • Rogers, Arkansas • Los Angeles, California + 34 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03163667"
    },
    {
      "nct_id": "NCT03057600",
      "title": "Study of CB-839 in Combination w/ Paclitaxel in Participants of African Ancestry and Non-African Ancestry With Advanced Triple Negative Breast Cancer (TNBC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Triple Negative Breast Cancer",
        "TNBC - Triple-Negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "CB-839",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 52,
      "start_date": "2017-05-01",
      "completion_date": "2019-11-25",
      "has_results": true,
      "last_update_posted_date": "2022-09-28",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 25,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • New Haven, Connecticut + 20 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03057600"
    },
    {
      "nct_id": "NCT03772288",
      "title": "A Study of TAK-659 in Combination With NKTR-214 in Participants With Advanced Non-Hodgkin Lymphoma (NHL)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoma, Non-Hodgkin"
      ],
      "interventions": [
        {
          "name": "TAK-659",
          "type": "DRUG"
        },
        {
          "name": "NKTR-214",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-04-03",
      "completion_date": "2021-11-17",
      "has_results": false,
      "last_update_posted_date": "2023-02-08",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 3,
      "location_summary": "Birmingham, Alabama • Detroit, Michigan • New York, New York",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03772288"
    },
    {
      "nct_id": "NCT04698681",
      "title": "NGS Screening Protocol to Detect Mutation of KEAP1 or NRF2/NFE2L2 Genes for the KEAPSAKE (CX-839-014) Trial",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Small Cell Lung Cancer",
        "Non-squamous Non-small-cell Lung Cancer",
        "Non-Squamous Non-Small Cell Neoplasm of Lung",
        "KEAP1 Gene Mutation",
        "NRF2 Mutation",
        "NFE2L2 Gene Mutation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2021-01-19",
      "completion_date": "2022-02-09",
      "has_results": false,
      "last_update_posted_date": "2023-03-13",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 63,
      "location_summary": "Daphne, Alabama • Mobile, Alabama • Glendale, Arizona + 52 more",
      "locations": [
        {
          "city": "Daphne",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04698681"
    },
    {
      "nct_id": "NCT02049957",
      "title": "Safety and Efficacy Study of Sapanisertib in Combination With Exemestane or Fulvestrant in Postmenopausal Women With Estrogen Receptor Positive/Human Epidermal Growth Factor Receptor 2 Negative (ER+/HER2-) Metastatic Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Sapanisertib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Exemestane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 118,
      "start_date": "2014-02-13",
      "completion_date": "2018-06-29",
      "has_results": true,
      "last_update_posted_date": "2023-02-08",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 30,
      "location_summary": "Los Angeles, California • San Francisco, California • Santa Barbara, California + 24 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Barbara",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02049957"
    },
    {
      "nct_id": "NCT04824937",
      "title": "Telaglenastat + Talazoparib In Prostate Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer Metastatic"
      ],
      "interventions": [
        {
          "name": "Telaglenastat",
          "type": "DRUG"
        },
        {
          "name": "Talazoparib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 30,
      "start_date": "2021-07",
      "completion_date": "2021-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-04-01",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04824937"
    },
    {
      "nct_id": "NCT03097328",
      "title": "Study of TAK-228 In Patients With Previously Treated Metastatic Renal Cell Carcinoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Renal Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "TAK-228",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bradley A. McGregor, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 39,
      "start_date": "2017-08-01",
      "completion_date": "2024-04-24",
      "has_results": true,
      "last_update_posted_date": "2024-04-29",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 8,
      "location_summary": "La Jolla, California • Aurora, Colorado • Chicago, Illinois + 3 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03097328"
    },
    {
      "nct_id": "NCT02071862",
      "title": "Study of the Glutaminase Inhibitor CB-839 in Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Solid Tumors",
        "Triple-Negative Breast Cancer",
        "Non Small Cell Lung Cancer",
        "Renal Cell Carcinoma",
        "Mesothelioma",
        "Fumarate Hydratase (FH)-Deficient Tumors",
        "Succinate Dehydrogenase (SDH)-Deficient Gastrointestinal Stromal Tumors (GIST)",
        "Succinate Dehydrogenase (SDH)-Deficient Non-gastrointestinal Stromal Tumors",
        "Tumors Harboring Isocitrate Dehydrogenase-1 (IDH1) and IDH2 Mutations",
        "Tumors Harboring Amplifications in the cMyc Gene"
      ],
      "interventions": [
        {
          "name": "CB-839",
          "type": "DRUG"
        },
        {
          "name": "Pac-CB",
          "type": "DRUG"
        },
        {
          "name": "CBE",
          "type": "DRUG"
        },
        {
          "name": "CB-Erl",
          "type": "DRUG"
        },
        {
          "name": "CBD",
          "type": "DRUG"
        },
        {
          "name": "CB-Cabo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 210,
      "start_date": "2014-02",
      "completion_date": "2019-03",
      "has_results": false,
      "last_update_posted_date": "2022-07-20",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 13,
      "location_summary": "San Francisco, California • Stanford, California • Sarasota, Florida + 7 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02071862"
    },
    {
      "nct_id": "NCT02771626",
      "title": "Study CB-839 in Combination With Nivolumab in Patients With Melanoma, Clear Cell Renal Cell Carcinoma (ccRCC) and Non-Small Cell Lung Cancer (NSCLC)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Clear Cell Renal Cell Carcinoma (ccRCC)",
        "Melanoma",
        "Non-small Cell Lung Cancer (NSCLC)"
      ],
      "interventions": [
        {
          "name": "CB-839",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 118,
      "start_date": "2016-08-01",
      "completion_date": "2020-04-24",
      "has_results": true,
      "last_update_posted_date": "2023-03-17",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 17,
      "location_summary": "Scottsdale, Arizona • Palo Alto, California • Aurora, Colorado + 10 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Athens",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02771626"
    },
    {
      "nct_id": "NCT03359733",
      "title": "A Study to Evaluate the Effect of Food on the Pharmacokinetics (PK) of TAK-659 in Participants With Advanced Solid Tumor",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Lymphoma, Malignant",
        "Advanced Solid Neoplasms"
      ],
      "interventions": [
        {
          "name": "TAK-659",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Calithera Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2018-02-28",
      "completion_date": "2019-08-20",
      "has_results": false,
      "last_update_posted_date": "2023-02-08",
      "last_synced_at": "2026-09-30T03:50:09.757Z",
      "location_count": 3,
      "location_summary": "New Haven, Connecticut • Detroit, Michigan • The Bronx, New York",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03359733"
    }
  ]
}