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No longer recruiting (closed or complete)Last updated: 3 February 2025

This phase Ib trial is trying to understand how safe and tolerable a type of targeted therapy is for the treatment of several different types of cancerA Phase 1b Dose-Escalation Study of Cabozantinib (XL184) Administered Alone or in Combination With Atezolizumab to Subjects With Locally Advanced or Metastatic Solid Tumors

Trial purpose

Medical clipboardCancer treatment

Tumor type

Multi-Cancer Multi-Cancer

Age

People18+

Clinical summary

Summary

This is a dose escalation and expansion study. In the dose escalation phase, eligible patients will be assigned to receive either 20mg, 40mg or 60mg of oral cabozantinib in combination with a standard dose of atezolizumab. Patients enrolled in the expansion phase will be assigned to a relevant cohort based on their diagnosis and treatment history, and will receive a recommended phase 2 dose of cabozantinib in combination with atezolizumab.

Conditions

This trial is treating people with advanced urothelial carcinoma (UC), renal cell carcinoma (RCC), castration-resistant prostate cancer (CRPC), non-small-cell lung cancer (NSCLC), triple negative breast cancer (TNBC), ovarian cancer (OC), endometrial cancer (EC), hepatocellular cancer (HCC), gastric cancer/gastroesophageal junction cancer/lower esophageal cancer, colorectal cancer (CRC), head and neck (H&N) cancer, and differentiated thyroid cancer (DTC)

Eligibility

Inclusion

  1. Cytologically or histologically and radiologically confirmed solid tumor that is inoperable, locally advanced, metastatic, or recurrent:

    • Dose-Escalation Stage:

      • Subjects with UC (including renal pelvis, ureter, bladder, urethra) after prior platinum-based therapy, or
      • Subjects with RCC (clear cell, non-clear cell histology) with or without prior systemic anticancer therapy
    • Expansion Stage:

      • Inoperable locally advanced or metastatic solid tumor (UC, RCC, CRPC, NSCLC, TNBC, OC, EC, HCC, GC/GEJC/LEC, CRC, H&N cancer, and DTC as outlined above)
  2. Measurable disease per RECIST 1.1 as determined by the investigator.
  3. Tumor tissue material available (archival or recent tumor biopsy)
  4. Recovery to baseline or ≤ Grade 1 CTCAE v4 from toxicities related to any prior treatments, unless AE(s) are clinically nonsignificant and/or stable on supportive therapy.
  5. Age eighteen years or older on the day of consent.
  6. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
  7. Adequate organ and marrow function.
  8. Sexually active fertile subjects and their partners must agree to use medically accepted methods of contraception.
  9. Female subjects of childbearing potential must not be pregnant at screening.

Exclusion

  1. Prior treatment with cabozantinib or immune checkpoint inhibitors including anti-CTLA-4, anti-PD-1, anti-PD-L1, or anti-PD-L2 therapy except in Expansion Cohorts 5, 7, 9, 11, 17, 19 and 20. Other restrictions regarding prior therapy may apply.
  2. Known brain metastases or cranial epidural disease unless adequately treated and stable for at least 4 weeks before first dose of study treatment.
  3. Concomitant anticoagulation with oral anticoagulants.
  4. Subject is receiving systemic steroid therapy (>10 mg daily prednisone equivalent) or any other form of immunosuppressive therapy within 2 weeks prior to first dose of study treatment.
  5. Administration of a live, attenuated vaccine within 30 days before first dose of study treatment.
  6. The subject has uncontrolled, significant intercurrent or recent illness, including, but not limited to, an active or history of autoimmune disease or immune deficiency; idiopathic pulmonary fibrosis, organizing pneumonia, pneumonitis; active infection requiring systemic treatment, infection with human immunodeficiency virus (HIV), AIDS-related illness, acute or chronic hepatitis B or C infection, positive test for tuberculosis, moderate to severe hepatic impairment (Child-Pugh B or C).
  7. Pregnant or lactating females.
  8. Previously identified allergy or hypersensitivity to components of the study treatment formulations.
  9. Diagnosis of another malignancy within 2 years before first dose of study treatment.

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

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Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

Exelixis

Scientific Title

A Phase 1b Dose-Escalation Study of Cabozantinib (XL184) Administered Alone or in Combination With Atezolizumab to Subjects With Locally Advanced or Metastatic Solid Tumors

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