Skip to content

Cabozantinib S-Malate in Treating Patients With Recurrent or Metastatic Endometrial Cancer

A Phase 2 Study of XL184 (Cabozantinib) in Recurrent or Metastatic Endometrial Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01935934
Enrollment
102
Registered
2013-09-05
Start date
2013-05-08
Completion date
2024-10-24
Last updated
2025-10-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endometrial Adenosquamous Carcinoma, Endometrial Clear Cell Adenocarcinoma, Endometrial Mixed Cell Adenocarcinoma, Endometrial Serous Adenocarcinoma, Metastatic Endometrioid Adenocarcinoma, Recurrent Malignant Uterine Corpus Neoplasm, Stage IVA Uterine Corpus Carcinoma or Carcinosarcoma by AJCC v7 Stage, Stage IVB Uterine Corpus Carcinoma or Carcinosarcoma by AJCC v7 Stage, Stage IV Uterine Corpus Carcinoma or Carcinosarcoma by AJCC v7 Stage, Uterine Corpus Carcinosarcoma

Brief summary

This phase II trial studies how well cabozantinib s-malate works in treating patients with endometrial cancer that has come back (recurrent) or has spread to other places in the body (metastatic). Cabozantinib s-malate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor.

Detailed description

PRIMARY OBJECTIVES: I. Determine efficacy of single agent cabozantinib s-malate (cabozantinib) in women previously receiving one line of chemotherapy for metastatic endometrial cancer or with progression within 12 months of completing adjuvant therapy, with co-primary endpoints of objective response rate by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 and progression-free-survival at 12 weeks (PFS). SECONDARY OBJECTIVES: I. Correlation of clinical response with baseline molecular status of archival tumor (hepatocyte growth factor receptor \[c-met\] amplification & mutation status) and overall survival. 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 4 weeks or every 6 months.

Interventions

DRUGCabozantinib S-malate

Given PO

OTHERLaboratory Biomarker Analysis

Correlative studies

OTHERPharmacological Study

Correlative studies

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have histologically or cytologically confirmed metastatic endometrial cancer; eligible histologies for the experimental cohort are: endometrioid or serous; eligible histologies for the exploratory cohort are: carcinosarcoma, clear cell, mixed, adenosquamous and any other rare sub-type of endometrial cancer * Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as \>= 10 mm with computed tomography (CT) scan, magnetic resonance imaging (MRI), or calipers by clinical exam and \>= 15 mm in short axis for nodal lesions; patients must have radiographic evidence of disease progression following the most recent line of treatment * Prior therapy: Eligible subjects must have had 1 line of systemic cytotoxic treatment; this may be adjuvant therapy with documented progression within 12 months of completion, or 1 line of cytotoxic therapy for metastatic disease; NOTE: eligible patients are allowed up to 2 lines of systemic cytotoxic treatment, of which only 1 line is allowed for metastatic disease; the acceptance of progression within 12 months of adjuvant is part inclusion to not require patient to re-challenge with chemotherapy (chemo) if they progressed soon after adjuvant therapy; prior hormonal therapy for metastatic/recurrent disease is also allowed; prior targeted therapy not directed against cMET or vascular endothelial growth factor (VEGF) pathways is allowed * Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 (Karnofsky \>= 60%) * Life expectancy of greater than 3 months * Absolute neutrophil count \>= 1.5 x 10\^9/L * Platelets \>= 100 x 10\^9/L * Total bilirubin =\< 1.5 x upper limit of normal (ULN) * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) =\< 3.0 X institutional upper limit of normal * Creatinine =\< 1.5 x ULN OR creatinine clearance \>= 50 mL/min/1.73 m\^2 for patients with creatinine levels above institutional normal * Hemoglobin \>= 90 g/L * Serum albumin \>= 28 g/L * Lipase \< 2.0 x ULN; no radiologic/clinical evidence of pancreatitis * Urine protein/creatinine ratio (UPCR) =\< 1 * Serum phosphorus, calcium, magnesium and potassium \>= lower limit of normal (LLN) * 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; postmenopausal 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, antiestrogens, ovarian suppression or any other reversible reason * Women of child-bearing potential must agree to use adequate contraception prior to study entry and for the duration of study participation; should a woman become pregnant or suspect she is pregnant while she is participating in this study, she should inform her treating physician immediately; sexually active subjects must agree to use medically accepted barrier methods of contraception (e.g., male or female condom) during the course of the study and for 4 months after the last dose of study drug(s), even if oral contraceptives are also used; all subjects of reproductive potential must agree to use both a barrier method and a second method of birth control during the course of the study and for 4 months after the last dose of study drug(s) * Patients must consent to analysis on archival tissue; if archival sample is not available, a sufficient tumor biopsy can be performed a minimum of 28 days prior to start of treatment if felt to be clinically reasonable * Ability to understand and the willingness to sign a written informed consent document

Exclusion criteria

* Patients who have had chemotherapy (including investigational cytotoxic chemotherapy), biologic agents (e.g., cytokines or antibodies) or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) before the first dose of study treatment or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier * Prior treatment with cabozantinib * The subject has received radiation therapy: * To bone metastasis within 14 days before the first dose of study treatment * To any other site(s) within 28 days before the first dose of study treatment * The subject has received radionuclide treatment within 6 weeks of the first dose of study treatment * The subject has received prior treatment with a small molecule kinase inhibitor or a hormonal therapy (including investigational kinase inhibitors or hormones) within 14 days or five half-lives of the compound or active metabolites, whichever is longer, before the first dose of study treatment * The subject has received any other type of investigational agent within 28 days before the first dose of study treatment * The subject has not recovered to baseline or Common Terminology Criteria for Adverse Events (CTCAE) =\< grade 1 from related toxicity to all prior therapies except alopecia and other non-clinically significant adverse events (AEs) * Any other prior malignancy from which the patient has been disease free for less than 3 years, with the exception of adequately treated and cured basal or squamous cell skin cancer, superficial bladder cancer, carcinoma in situ of any site or any other cancer * Patients with known brain metastases should be excluded from this clinical trial * The subject has prothrombin time (PT)/international normalized ratio (INR) or partial thromboplastin time (PTT) test \>= 1.3 x the laboratory ULN =\< 7 days before the first dose of study treatment * Therapeutic anticoagulation with warfarin, antiplatelet agents (e.g., clopidogrel), thrombin, or Factor Xa inhibitors is not allowed; therapeutic anticoagulation with low molecular weight heparin (LMWH) is allowed as well as prophylactic anticoagulation using low dose aspirin (=\< 81 mg/day), low-dose warfarin (=\< 1 mg/day), and LMWH * The subject requires chronic concomitant treatment of strong CYP3A4 inducers (e.g., dexamethasone, phenytoin, carbamazepine, rifampin, rifabutin, rifapentine, phenobarbital, and St. John's wort) * 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 pulmonary hemorrhage within 3 months before the first dose of study treatment * The subject has tumor in contact with, 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 cabozantinib * 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 mmHg systolic, or \> 90 mmHg 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 * Bowel obstruction or gastric outlet obstruction * 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 within 3 months before the first dose of study therapy * Other clinically significant disorders such as: * Active uncontrolled infection requiring intravenous systemic treatment within 14 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 * The subject is unable to swallow tablets * The subject has a corrected QT interval calculated by the Fridericia formula (QTcF) \> 500 ms =\< 7 days before the first dose of study treatment * The subject is unable or unwilling to abide by the study protocol or cooperate fully with the investigator or designee * History of allergic reactions attributed to compounds of similar chemical or biologic composition to XL184 * Pregnant women are excluded from this study; breastfeeding should be discontinued if the mother is treated with XL184 * Known human immunodeficiency virus (HIV)-positive patients on combination antiretroviral therapy are ineligible

Design outcomes

Primary

MeasureTime frameDescription
Response RateAt 12 weeks, then every 8 weeks during treatment; up to 12 weeks post-treatment if discontinued due to toxicities, a maximum of 16 weeksPer Response Evaluation Criteria in Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.
Progression-free SurvivalTime from start of treatment to time of progression or death, assessed at 12 weeksDefined as the percentage of patients progression free 12 weeks from starting treatment.

Secondary

MeasureTime frameDescription
Number of Participants With Archival Specimens That Had C-met Amplification or MutationBaselineWill correlate with clinical response. 83 tumors were profiled on the NGS TruSeq amplicon panel and 1 on Sequenom. Fields with at least 50 tumor cells were captured to analyze 100 non-overlapping tumor cell nuclei to calculate a ratio of MET to CEP7 signal; MET ampliction was defined as MET/CEP7 ratio \>=2.
Overall SurvivalTime from start of treatment to time of death, every 6 monthsWill correlate with clinical response.

Countries

Canada, United States

Participant flow

Participants by arm

ArmCount
Experimental (Endometriod + Serous)
Patients receive cabozantinib s-malate PO QD on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Cabozantinib S-malate: Given PO Laboratory Biomarker Analysis: Correlative studies Pharmacological Study: Correlative studies
70
Exploratory (Uncommon Histology)
Patients receive cabozantinib s-malate PO QD on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Cabozantinib S-malate: Given PO Laboratory Biomarker Analysis: Correlative studies Pharmacological Study: Correlative studies
32
Total102

Baseline characteristics

CharacteristicExperimental (Endometriod + Serous)Exploratory (Uncommon Histology)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
37 Participants18 Participants55 Participants
Age, Categorical
Between 18 and 65 years
33 Participants14 Participants47 Participants
Age, Continuous70 years66 years66 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants4 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
67 Participants27 Participants94 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
9 Participants4 Participants13 Participants
Race (NIH/OMB)
Black or African American
5 Participants1 Participants6 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants1 Participants3 Participants
Race (NIH/OMB)
White
54 Participants25 Participants79 Participants
Region of Enrollment
Canada
48 participants22 participants70 participants
Region of Enrollment
United States
22 participants10 participants32 participants
Sex: Female, Male
Female
70 Participants32 Participants102 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
7 / 102
other
Total, other adverse events
102 / 102
serious
Total, serious adverse events
42 / 102

Outcome results

Primary

Progression-free Survival

Defined as the percentage of patients progression free 12 weeks from starting treatment.

Time frame: Time from start of treatment to time of progression or death, assessed at 12 weeks

ArmMeasureValue (NUMBER)
Experimental (Endometriod + Serous)Progression-free Survival67.17 percentage of participants
Exploratory (Uncommon Histology)Progression-free Survival46.88 percentage of participants
Primary

Response Rate

Per Response Evaluation Criteria in Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Time frame: At 12 weeks, then every 8 weeks during treatment; up to 12 weeks post-treatment if discontinued due to toxicities, a maximum of 16 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Experimental (Endometriod + Serous)Response Rate9 Participants
Exploratory (Uncommon Histology)Response Rate2 Participants
Secondary

Number of Participants With Archival Specimens That Had C-met Amplification or Mutation

Will correlate with clinical response. 83 tumors were profiled on the NGS TruSeq amplicon panel and 1 on Sequenom. Fields with at least 50 tumor cells were captured to analyze 100 non-overlapping tumor cell nuclei to calculate a ratio of MET to CEP7 signal; MET ampliction was defined as MET/CEP7 ratio \>=2.

Time frame: Baseline

Population: Archival tumor was available in 91 patients. Genomic analysis failed in 7. Of the remaining 84, 83 tumors were profiled on the NGS TruSeq amplicon panel and 1 on Sequenom to analyze the number of mutations observed.

ArmMeasureGroupValue (NUMBER)
Experimental (Endometriod + Serous)Number of Participants With Archival Specimens That Had C-met Amplification or MutationPIK3CA10 participants
Experimental (Endometriod + Serous)Number of Participants With Archival Specimens That Had C-met Amplification or MutationCTNNB19 participants
Experimental (Endometriod + Serous)Number of Participants With Archival Specimens That Had C-met Amplification or MutationKRAS8 participants
Experimental (Endometriod + Serous)Number of Participants With Archival Specimens That Had C-met Amplification or MutationMET0 participants
Experimental (Endometriod + Serous)Number of Participants With Archival Specimens That Had C-met Amplification or MutationPTEN13 participants
Experimental (Endometriod + Serous)Number of Participants With Archival Specimens That Had C-met Amplification or MutationTP536 participants
Exploratory (Uncommon Histology)Number of Participants With Archival Specimens That Had C-met Amplification or MutationPTENNA participants
Exploratory (Uncommon Histology)Number of Participants With Archival Specimens That Had C-met Amplification or MutationMET0 participants
Exploratory (Uncommon Histology)Number of Participants With Archival Specimens That Had C-met Amplification or MutationKRAS3 participants
Exploratory (Uncommon Histology)Number of Participants With Archival Specimens That Had C-met Amplification or MutationTP5319 participants
Exploratory (Uncommon Histology)Number of Participants With Archival Specimens That Had C-met Amplification or MutationCTNNB1NA participants
Exploratory (Uncommon Histology)Number of Participants With Archival Specimens That Had C-met Amplification or MutationPIK3CA10 participants
CarcinosarcomaNumber of Participants With Archival Specimens That Had C-met Amplification or MutationMET0 participants
CarcinosarcomaNumber of Participants With Archival Specimens That Had C-met Amplification or MutationPIK3CA6 participants
CarcinosarcomaNumber of Participants With Archival Specimens That Had C-met Amplification or MutationCTNNB1NA participants
CarcinosarcomaNumber of Participants With Archival Specimens That Had C-met Amplification or MutationPTENNA participants
CarcinosarcomaNumber of Participants With Archival Specimens That Had C-met Amplification or MutationKRAS3 participants
CarcinosarcomaNumber of Participants With Archival Specimens That Had C-met Amplification or MutationTP537 participants
Other HistologyNumber of Participants With Archival Specimens That Had C-met Amplification or MutationKRASNA participants
Other HistologyNumber of Participants With Archival Specimens That Had C-met Amplification or MutationPTENNA participants
Other HistologyNumber of Participants With Archival Specimens That Had C-met Amplification or MutationMETNA participants
Other HistologyNumber of Participants With Archival Specimens That Had C-met Amplification or MutationPIK3CANA participants
Other HistologyNumber of Participants With Archival Specimens That Had C-met Amplification or MutationCTNNB1NA participants
Other HistologyNumber of Participants With Archival Specimens That Had C-met Amplification or MutationTP53NA participants
Secondary

Overall Survival

Will correlate with clinical response.

Time frame: Time from start of treatment to time of death, every 6 months

Population: Participants followed for overall survival, every 6 months until death

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Experimental (Endometriod + Serous)Overall Survival4 Participants
Exploratory (Uncommon Histology)Overall Survival3 Participants

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026