Cabozantinib and Nivolumab in Treating Patients With Advanced, Recurrent or Metastatic Endometrial Cancer



Status:Recruiting
Healthy:No
Age Range:18 - Any
Updated:3/14/2019
Start Date:January 26, 2018
End Date:January 23, 2021

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A Randomized Phase 2 Study of Cabozantinib in Combination With Nivolumab in Advanced, Recurrent Metastatic Endometrial Cancer

This randomized phase II trial studies how well cabozantinib and nivolumab work in treating
patients with endometrial that has come back or spread to other places in the body.
Cabozantinib may stop the growth of tumor cells by blocking some of the enzymes needed for
cell growth. Monoclonal antibodies, such as nivolumab, may interfere with the ability of
tumor cells to grow and spread. Giving cabozantinib and nivolumab may work better in treating
endometrial cancer.

PRIMARY OBJECTIVES:

I. To evaluate the clinical anti-tumor activity of XL184 (cabozantinib) and nivolumab based
on progression free survival (PFS) in patients with advanced, recurrent or metastatic
endometrial cancer previously treated with at least one line of platinum-based chemotherapy
compared to patients receiving nivolumab alone.

SECONDARY OBJECTIVES:

I. To evaluate the efficacy of XL184 and nivolumab in terms of overall response rate (ORR)
compared to nivolumab alone.

II. To evaluate overall survival (OS) of patients receiving XL184 and nivolumab compared to
patients receiving nivolumab alone.

III. To evaluate the safety of combination treatment using XL184 and nivolumab in patients
with advanced, recurrent metastatic endometrial cancer.

IV. To evaluate correlation between PD-L1 expression, CD3, CD4 and CD8 infiltrates and
outcome (PFS, ORR, OS).

V. To compare PD-L1 expression, CD3, CD4 and CD8 infiltrates in the primary tumor (archival
tissue) and in the tissue from baseline biopsy.

VI. To assess activity (PFS, ORR and OS) of nivolumab alone or in combination with XL184
according to microsatellite instability (MSI)/mismatched repair (MMR) status.

TERTIARY OBJECTIVES:

I. To assess activity (PFS, ORR and OS) of XL184 and nivolumab in patients progressed after
previous exposure to anti PD-1, PD-L1 or PD-L2 agents or crossed-over from single agent
nivolumab, and in patients with diagnosis of carcinosarcoma.

II. To compare microsatellite (MS) and MMR status, in the primary tumor (archival tissue) and
in the tissue from baseline biopsy.

III. To assess the genomic and immune-markers landscape at baseline on tumor tissue and
changes in immune landscape in peripheral blood during treatment and correlate with outcome.

OUTLINE: Patients are randomized to 1 of 2 arms.

Arm A: Patients receive cabozantinib orally (PO) once daily (QD) on days 1-28 and nivolumab
intravenously (IV) over 60 minutes on days 1 and 15, then on day 1 beginning course 5.

Arm B: Patients receive nivolumab as in Arm A. Patients may cross-over to Arm A at the time
of disease progression.

In both arms, courses repeat every 28 days in the absence of disease progression or
unacceptable toxicity.

After completion of study treatment, patients are followed up at 30-37 days, then every 12
weeks.

Inclusion Criteria:

- Patients must have histologically or cytologically confirmed epithelial endometrial
carcinoma; all histologies are accepted; patients with diagnosis of endometrial
carcinosarcoma will be enrolled in the exploratory cohort (arm C) and will receive
combination of cabozantinib and nivolumab

- Patients must have advance, recurrent or metastatic endometrial cancer

- Patients must have radiological evidence of disease progression following the most
recent treatment

- Patients must have measurable disease according Response Evaluation Criteria in Solid
Tumors (RECIST) version (v)1.1 criteria

- Must have MS/MMR result available at time of registration; MS/MMR status is to be
determined per local practice (i.e. immunohistochemistry [IHC], polymerase chain
reaction [PCR], or other methods)

- Prior therapy: eligible subjects must have had at least one line of platinum-based
chemotherapy; this may be adjuvant therapy or first line of cytotoxic therapy for
metastatic disease; prior hormonal therapy for metastatic/recurrent disease, prior
targeted therapy, and prior radiotherapy are allowed; no maximum number of previous
lines of chemotherapies; concomitant chemo-radiation is not considered as previous
line of systemic chemotherapy

- Availability of archival tissue for correlative analysis

- Eastern Cooperative Oncology Group (ECOG) performance status 0-2

- Absolute neutrophil count >= 1,500/mcL

- Platelets >= 100 x 10^9/L

- Total bilirubin =< 1.5 ULN (upper limit of normal), unless due to Gilbert's syndrome

- Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase
[SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT])
=< 3 × institutional upper limit of normal

- Creatinine =< 1.5 ULN OR creatinine clearance >= 50 mL/min/1.73 m^2 for patients with
creatinine levels above institutional normal

- Serum albumin > 28 g/L

- Lipase < 2 ULN

- Urine protein/ creatinine ratio (UPCR) =< 1

- Prothrombin time (PT)/ international normalized ratio (INR) and partial thromboplastin
time (PTT) test =< 1.3 ULN

- Patient must have disease amenable to biopsy and must agree to have one baseline
biopsy

- Women of childbearing potential (WOCBP) must have a negative serum or urine pregnancy
test at screening; WOCBP must agree to use adequate contraception (barrier method of
birth control or abstinence) prior to study entry and for the duration of study
participation; WOCBP should use an adequate method to avoid pregnancy for 7 months
after the last dose of investigational drug; women must not be breastfeeding; women of
childbearing potential (WOCBP) is defined as any female who has experienced menarche
and who has not undergone surgical sterilization (hysterectomy or bilateral
oophorectomy) or who is not postmenopausal; menopause is defined clinically as 12
months of amenorrhea in a woman over age 45 in the absence of other biological or
physiological causes; in addition, women under the age of 55 must have a documented
serum follicle stimulating hormone (FSH) level less than 40 mIU/mL; should a woman
become pregnant or suspect she is pregnant while she is participating in this study,
she should inform her treating physician immediately

- Ability to understand and the willingness to sign a written informed consent document

- CROSS-OVER ELIGIBILITY CRITERIA

- Patient must provide a tumor biopsy as the time of progression on Arm B; if a patient
does not have a tumor lesion amenable of biopsy or it has been unsafe for a biopsy to
be performed, cross-over will be allowed

Exclusion Criteria:

- Patients who have had chemotherapy (including investigational cytotoxic chemotherapy),
biologic agents (e.g. targeted therapy or antibodies) or radiotherapy within 4 weeks
prior to the first dose of study treatment

- Patients who have not recovered from adverse events attributed to prior anti-cancer
therapy (i.e. have residual toxicities > grade 1, except for alopecia, neuropathy,
lymphocytopenia and other non-clinically significant adverse events)

- Patients who are receiving any other investigational agents

- Patients should be excluded if they have had prior treatment with anti-CTLA-4 antibody
or any other antibody or drug specifically targeting T-cell co-stimulation; previous
treatment with anti-PD-1, anti-PD-L1 or anti-PD-L2 is allowed and patients will be
enrolled in the exploratory cohort (arm C) at the time of progression from last line
of treatment (treatment with immune check point inhibitor does not have to necessary
be the last line of treatment)

- Patients should be excluded if they have had prior treatment with cabozantinib;
previous use of other antiangiogenic agents other than cabozantinib is allowed

- Any other active malignancy other than the endometrial cancer, that is progressing or
requiring active treatment with the exception of basal or squamous cell skin cancer,
superficial bladder cancer, carcinoma in situ of any site

- Patients with known brain metastases should be excluded from this clinical trial

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

- History of allergic reactions attributed to compounds of similar chemical or biologic
composition to cabozantinib or nivolumab

- Patients require chronic concomitant treatment of strong CYP450 3A4 inducers (e.g.
dexamethasone, phenytoin, carbamazepine, rifampicin, rifabutin, rifapentine,
phenobarbital, St. John's wort) or inhibitors (eg. ketoconazole, miconazole,
itraconazole, voriconazole, posaconazole, clarithromycin, telithromycin, indinavir,
saquinavir, ritonavir, nelfinavir, amprenavir, fosamprenavir nefazodone, lopinavir,
troleandomycin, mibefradil and conivaptan)

- The subject has experienced any of the following:

- Clinically-significant gastrointestinal bleeding within 6 months before the first
dose of study treatment;

- Hemoptysis of >= 0.5 teaspoon (2.5 mL) of red blood within 3 months before the
first dose of study treatment;

- Any other signs indicative of hemorrhage within 3 months before the first dose of
study treatment

- The subject has radiographic evidence of cavitating pulmonary lesion(s)

- The subject has tumor invading or encasing any major blood vessels

- The subject has evidence of tumor invading the gastrointestinal (GI) tract (esophagus,
stomach, small or large bowel, rectum or anus), or any evidence of endotracheal or
endobronchial tumor within 28 days before the first dose of XL184 (cabozantinib)

- Subject with extensive pelvic mass at risk of fistulization, or history of bowel
obstruction within 3 months prior to the proposed first dose of study treatment

- The subject has uncontrolled, significant intercurrent or recent illness including,
but not limited to, the following conditions:

- Cardiovascular disorders including:

- Congestive heart failure (CHF): New York Heart Association (NYHA) class III
(moderate) or class IV (severe) at the time of screening

- Concurrent uncontrolled hypertension defined as sustained blood pressure
(BP) > 140 mm Hg systolic, or > 90 mm Hg diastolic despite optimal
antihypertensive treatment within 7 days of the first dose of study
treatment

- Any history of congenital long QT syndrome

- Any of the following within 6 months before the first dose of study
treatment:

- Unstable angina pectoris

- Clinically-significant cardiac arrhythmias

- Stroke (including transient ischemic attack [TIA], or other ischemic
event)

- Myocardial infarction

- Thromboembolic event requiring therapeutic anticoagulation (Note:
subjects with a venous filter [e.g. vena cava filter] are not eligible
for this study)

- Gastrointestinal disorders particularly those associated with a high risk of
perforation or fistula formation including:

- Any of the following within 28 days before the first dose of study treatment

- Intra-abdominal tumor/metastases invading GI mucosa

- Active peptic ulcer disease,

- Inflammatory bowel disease (including ulcerative colitis and Crohn's
disease), diverticulitis, cholecystitis, symptomatic cholangitis or
appendicitis

- Malabsorption syndrome

- Any of the following within 6 months before the first dose of study
treatment:

- Abdominal fistula

- Gastrointestinal perforation

- Intra-abdominal abscess; Note: complete resolution of an
intra-abdominal abscess must be confirmed prior to initiating treatment
with cabozantinib even if the abscess occurred more than 6 months
before the first dose of study treatment

- Other disorders associated with a high risk of fistula formation including
percutaneous endoscopic gastrostomy (PEG) tube placement

- Other clinically significant disorders such as:

- Active infection requiring systemic treatment within 28 days before the first
dose of study treatment

- Serious non-healing wound/ulcer/bone fracture within 28 days before the first
dose of study treatment

- History of organ transplant

- Concurrent uncompensated hypothyroidism or thyroid dysfunction within 7 days
before the first dose of study treatment

- History of major surgery as follows:

- Major surgery within 3 months of the first dose of cabozantinib if there
were no wound healing complications or within 6 months of the first dose of
cabozantinib if there were wound complications

- Minor surgery within 1 month of the first dose of cabozantinib if there were
no wound healing complications or within 3 months of the first dose of
cabozantinib if there were wound complications

- In addition, complete wound healing from prior surgery must be confirmed at least
28 days before the first dose of cabozantinib irrespective of the time from
surgery

- Known active human immunodeficiency virus (HIV), acquired immunodeficiency syndrome
(AIDS) related illness, or hepatitis B or C infection

- Administration of a live vaccine within 4 weeks prior to start of protocol therapy

- Subjects with diagnosis of immunodeficiency or who are receiving systemic steroid
therapy or any other form of immunosuppressive therapy within 7 days prior to the
first dose of trial treatment; the following are exceptions to this exclusion
criteria: intranasal, inhaled, topical steroids, or local steroids injections (e.g.
intra-articular injection); systemic corticosteroids at physiologic dose not to exceed
10 mg/day of prednisone or equivalent; steroids as premedication for hypersensitivity
reactions (eg, computed tomography [CT] scan premedication)

- History of autoimmune disease, such as, but not restricted to: rheumatoid arthritis,
inflammatory bowel disease, systemic lupus erythematous, ankylosing spondylitis,
scleroderma, or multiple sclerosis requiring treatment within the last two years;
patients with vitiligo or diabetes are not excluded; replacement therapy (e.g.
thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or
pituitary insufficiency, etc.) is not considered a form of systemic treatment;
patients with recent history of thyroiditis; subjects with remote history (greater
than 5 years) of thyroiditis are not excluded

- Psychiatric illness/social situations that would limit compliance with study
requirements

- The subject has a corrected QT interval calculated by the Fridericia formula (QTcF) >
500 ms within 28 days before randomization; Note: if initial QTcF is found to be > 500
ms, two additional electrocardiogram (EKG)s separated by at least 3 minutes should be
performed; if the average of these three consecutive results for QTcF is =< 500 ms,
the subject meets eligibility in this regard

- Patient is not able to swallow pills

- Pregnant women are excluded from this study; breastfeeding should be discontinued if
the mother is treated with XL184 and nivolumab
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