Cabozantinib-S-Malate in Treating Patients With Recurrent or Progressive Ovarian, Fallopian Tube, or Primary Peritoneal Cancer

PRIMARY OBJECTIVES:

I. To evaluate the anti-tumor activity of cabozantinib (XL184) (cabozantinib-s-malate) in
women with persistent or recurrent clear cell ovarian cancer, based on the proportion of
patients who survive progression-free for at least 6 months and the proportion who have
objective tumor response (complete or partial).

SECONDARY OBJECTIVES:

I. To determine the nature, frequency and maximum degree of toxicity as assessed by Common
Terminology Criteria for Adverse Events (CTCAE) version (v)4 for cabozantinib (XL184).

II. To determine the progression free survival (PFS) and overall survival (OS) for patients
with persistent or recurrent clear cell ovarian cancer treated with cabozantinib (XL184).

TERTIARY OBJECTIVES:

I. To examine the expression of phosphatase and tensin homolog gene (PTEN), phosphorylated
v-akt murine thymoma viral oncogene homolog 1 (pAKT), cyclin E, and met proto-oncogene (MET)
in formalin-fixed, paraffin-embedded tumor.

II. To examine MET amplification (fluorescence in situ hybridization) in tumor specimens and
the relationship to response.

OUTLINE:

Patients receive cabozantinib-s-malate orally (PO) once daily (QD) on days 1-28. Courses
repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 3 months for 2 years,
every 6 months for 3 years, and then annually thereafter.

Inclusion Criteria:

- A retrospective review of all patients entered will be performed to confirm clear cell
histology; patients must have recurrent or, progressive clear cell ovarian cancer not
solely based on cancer antigen (CA)-125; primary tumors must be at least 50% clear
cell histomorphology in order to be eligible or have a histologically documented
recurrence with at least 50% clear cell histomorphology; recurrence should be biopsy
proven unless the tumor is located in an area deemed unsafe to biopsy by the surgeon;
if a biopsy can be obtained without significant risk, then biopsy should be obtained

- If the primary tumor had at least 50% clear cell histomorphology, a biopsy of the
recurrent or persistent tumor is not required; the percentage of clear cell
histomorphology must be documented in the pathology report or in an addendum to the
original report; if slides of the primary tumor are not available for review due to
disposal of slides by the histology laboratory (typically 10 years after diagnosis),
biopsy of recurrent or persistent disease is required

- If slides of the primary tumor are not available for review, a biopsy of the recurrent
or persistent tumor is required to confirm at least 50% clear cell histomorphology;
the percentage of involvement must be documented in the pathology report or in an
addendum to the original report

- All patients must have measurable disease as defined by Response Evaluation Criteria
in Solid Tumors (RECIST) 1.1

- All patients must submit unstained slides of primary or recurrent tumor for
translational analysis

- Patients must have at least one "target lesion" to be used to assess response on this
protocol as defined by RECIST 1.1

- Patients must have had one prior platinum-based chemotherapeutic regimen for
management of primary disease; platinum sensitive and resistant patients are eligible

- Patients are allowed to receive, but are not required to receive, one additional
cytotoxic regimen for management of recurrent or persistent disease

- Concomitant use of additional anti-neoplastic agents will not be allowed in this study

- Patients may not have received previous therapy with a MET inhibitor

- Patients must not be eligible for a higher priority (e.g.; phase II/III), National
Surgical Adjuvant Breast and Bowel Project, Radiation Therapy Oncology Group, and
Gynecologic Oncology Group (NRG) protocol for the same population if one exists

- Patients must be recovered from effects of recent surgery (28 days must elapse between
surgery and the start of treatment with cabozantinib)

- Patients must have >= 4 weeks since prior chemotherapy or radiation (>= 6 weeks for
nitrosoureas or mitomycin C)

- Appropriate stage for study entry based on the following diagnostic workup:

- History/physical examination within 28 days prior to registration

- The trial is open only to women with recurrent, progressive clear cell carcinoma of
the ovary

- Patients must have an Eastern Cooperative Oncology Group (ECOG) performance status of
0, 1, or 2 (Karnofsky >= 60%) within 28 days prior to registration

- Absolute neutrophil count (ANC) >= 1,500/mcl

- Platelets greater than or equal to 100,000/mcl

- Leukocytes >= 3,000/mcL

- Hemoglobin >= 9 g/dL

- Serum albumin >= 2.8 g/dL

- Prothrombin time (PT) such that international normalized ratio (INR) is less than or
equal to 1.3 x upper limit of normal (ULN)

- Partial thromboplastin time (PTT) less than or equal to 1.3 x ULN

- Creatinine less than or equal to 1.5 times the ULN OR creatinine clearance >= 50
mL/min/1.73 m^2 for patients with creatinine levels above institutional normal

- The urine protein: creatinine ratio (UPCR) is derived as follows: protein
concentration (mg/dL)/creatinine (mg/dL); patients must have a UPCR < 1.0 to allow
participation in the study

- Bilirubin less than or equal to 1.5 ULN

- Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) less than or equal
to 2.5 times the ULN, unless subjects have liver metastasis, in which case both AST
and ALT must be less than or equal to 5 times the ULN

- Lipase less than or equal to 2 x ULN

- No clinical evidence of pancreatitis

- Patients must have a normal baseline thyroid stimulating hormone (TSH); a history of
hypothyroidism and/or hyperthyroidism is allowed

- Women of childbearing potential must have a negative pregnancy test at screening;
women of childbearing potential include women who have experienced menarche and who
have not undergone successful surgical sterilization (hysterectomy, bilateral tubal
ligation, or bilateral oophorectomy) or are not postmenopausal; post-menopause is
defined as amenorrhea >= 12 consecutive months; note: women who have been amenorrheic
for 12 or more months are still considered to be of childbearing potential if the
amenorrhea is possibly due to prior chemotherapy, anti-estrogens, ovarian suppression
or any other reversible reason; women should stop breastfeeding while participating in
this trial; male partners of women participants should also use medically-acceptable
forms of contraception during the study

- The patient must provide study-specific informed consent prior to study entry

Exclusion Criteria:

- Human immunodeficiency virus (HIV) positive patients

- Patients with serious non-healing wound, ulcer, or bone fracture

- Patients with active bleeding or pathologic conditions that carry high risk of
bleeding, such as known bleeding disorder, coagulopathy, or tumor involving major
vessels

- The subject requires concomitant treatment, in therapeutic doses, with anticoagulants
such as warfarin or warfarin-related agents, heparin, thrombin or factor Xa
inhibitors, or antiplatelet agents (e.g., clopidogrel); low dose aspirin (=< 81
mg/day), low-dose warfarin (=< 1 mg/day), and prophylactic low molecular weight
heparin (LMWH) are permitted

- Patients with history or evidence upon physical examination of central nervous system
(CNS) disease, including primary brain tumor, seizures not controlled with standard
medical therapy, any brain metastases, or history of cerebrovascular accident (CVA,
stroke), transient ischemic attack (TIA) or subarachnoid hemorrhage within 6 months of
the first date of treatment on this study

- Patients with clinically significant cardiovascular disease; this includes:

- Poorly controlled hypertension (> 140 mm Hg and > 90 mm Hg for systolic and
diastolic blood pressure [BP]) are ineligible

- Myocardial infarction or unstable angina within 6 months prior to registration;
New York Heart Association (NYHA) grade II or greater congestive heart failure

- Cardiac arrhythmia requiring medication

- Grade II or greater peripheral vascular disease based on National Cancer Institute
(NCI) Common Toxicity Criteria (CTC); e.g. ischemic rest pain, minor tissue loss, and
ulceration or gangrene

- Patients with a pre-existing thyroid abnormality who are unable to maintain thyroid
function in the normal range with medication are ineligible; patients with a history
of hypothyroidism are eligible provided they are currently euthyroid

- Patients who have a major surgical procedure, or significant traumatic injury within
28 days prior to the first date of treatment on this study, or anticipation of need
for major surgical procedure during the course of the study; patients with placement
of vascular access device or core biopsy within 7 days prior to the first date of
treatment on this study

- Patients with other invasive malignancies, with the exception of non-melanoma skin
cancer, who had (or have) any evidence of other cancer present within the last 5 years
or whose previous cancer treatment contraindicates this protocol therapy

- Patients must not be eligible for a higher priority NRG clear cell protocol
(Gynecologic Oncology Group [GOG]-0283); rare patients ineligible for GOG-0283 may be
eligible for this trial without prior treatment on dasatinib therapy (e.g. they have
been deemed allergic to dasatinib)

- Patients who cannot swallow pills