Study of Cabozantinib (XL184) in Adults With Advanced Malignancies

Not Recruiting

Trial ID: NCT00940225


The purpose of this study is to determine whether or not XL184 demonstrates anti-tumor activity in selected tumor types under a randomized discontinuation trial (RDT) design. Subjects who have responded to study drug after 12 weeks of open-label XL184 administration will continue to take XL184. Subjects who are clearly progressing will discontinue study treatment and subjects who demonstrate stable disease will be randomized to either XL184 or placebo. For individual patients, once disease progression is observed, the blind will be broken and subjects who were randomized to placebo will be offered the option to receive open-label XL184. Subjects who progressed while taking XL184 will discontinue study treatment. Emerging data may support enrollment in an open-label, non-randomized expansion cohort (NRE). There will be NRE cohorts for prostate and ovarian cancers.

Official Title

A Randomized Discontinuation Study of XL184 in Subjects With Advanced Solid Tumors

Stanford Investigator(s)

Heather Wakelee
Heather Wakelee

Winston Chen and Phyllis Huang Professor

A. Dimitrios Colevas, MD
A. Dimitrios Colevas, MD

Professor of Medicine (Oncology) and, by courtesy, of Otolaryngology - Head & Neck Surgery (OHNS) and of Radiation Oncology (Radiation Therapy)

George A. Fisher Jr.
George A. Fisher Jr.

Colleen Haas Chair in the School of Medicine


Inclusion Criteria:

   - The subject has a cytologically or histologically and radiologically confirmed,
   advanced, recurrent, or metastatic solid tumor of the nine types listed below:

      - Pancreatic Cancer

      - Castration-Resistant Prostate Cancer (CRPC)

      - Hepatocellular Carcinoma (HCC)

      - Gastric or Gastroesophageal Junction Cancer

      - Melanoma

      - Small Cell Lung Cancer (SCLC)

      - Ovarian cancer, primary peritoneal or fallopian tube carcinoma

      - Breast cancer that is one of the following subtypes: estrogen receptor positive
      breast cancer, estrogen receptor/progesterone receptor/HER2-negative
      (triple-negative), or inflammatory (regardless of receptor status) disease

      - Non-Small Cell Lung Cancer (NSCLC)

   - Certain requirements for prior therapies may apply

   - The subject has documented progressive disease at screening

   - Subjects having any tumor type of other than CRPC must have at least one lesion that
   is not within a previously irradiated field and is measurable on CT or MRI scan

   - The subject has recovered to baseline or CTCAE ≤ Grade 1 from toxicities related to
   prior treatment (some exceptions apply)

   - The subject is ≥ 18 years old on the day of consent

   - Tissue samples from archival or fresh tissue, or a tissue block of the subject's tumor

   - The subject has an Eastern Cooperative Oncology Group (ECOG) performance status of 0
   or 1

   - The subject has adequate organ function

   - The subject is capable of understanding and complying with the protocol requirements
   and has signed the informed consent document

   - Sexually active fertile subjects (male and female), and their partners, must agree to
   use medically accepted methods of contraception during the course of the study and for
   3 months after the last dose of the study drug(s)

   - Female subjects of childbearing potential must have a negative pregnancy test at

Exclusion Criteria:

   - The subject has experienced clinically-significant hematemesis or hemoptysis of >0.5
   teaspoon of red blood, or other signs indicative of pulmonary hemorrhage within 3
   months before the first dose of study treatment

   - The subject has a cavitating pulmonary lesion(s) or a pulmonary lesion abutting or
   encasing a major blood vessel

   - Certain restrictions on prior treatments apply

   - The subject has received drugs used to control loss of bone mass within 4 weeks prior
   to the first dose of study treatment

   - The subject has known symptomatic or uncontrolled brain metastases or epidural disease

   - The subject has prothrombin time/International Normalized Ratio (PT/INR) or partial
   thromboplastin time (PTT) test results that are above (1.3x)the laboratory upper limit
   of normal

   - The subject has a corrected QT interval(QTcF)>500 ms at screening

   - The subject requires concomitant treatment, in therapeutic doses, with anticoagulants
   such as warfarin or Coumadin-related agents, heparin, thrombin or FXa inhibitors, and
   antiplatelet agents (low-dose aspirin (≤81 mg/day), low-dose warfarin (≤1mg/day, and
   prophylactic low molecular weight heparin (LMWH) are permitted)

   - The subject has uncontrolled, significant intercurrent illness

   - The subject is unable to swallow capsules

   - The subject is pregnant or breastfeeding

   - The subject has a previously-identified allergy or hypersensitivity to components of
   the study treatment formulation

   - The subject is unable or unwilling to abide by the study protocol or cooperate fully
   with the investigator or designee

   - The subject has had another diagnosis of malignancy requiring systemic treatment
   within the last two years, unless non-melanoma skin cancer, in-situ carcinoma of the
   cervix, or superficial bladder cancer


drug: XL184

drug: Placebo

Not Recruiting

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305
Cancer Clinical Trials Office

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