Cabozantinib With Radiation Therapy for the Treatment of Sarcomas of the Extremities

A Phase 1/2 Study of Neoadjuvant Cabozantinib in Combination With Radiation Therapy for Sarcomas of the Extremities

Status

Terminated

Phases

Phase 1Phase 2

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04220229

Enrollment

Registered

2020-01-07

Start date

2020-06-01

Completion date

2024-10-31

Last updated

2025-07-17

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

Conditions

Sarcoma of the Extremity, Stage IA Soft Tissue Sarcoma of the Trunk and Extremities, Stage IB Soft Tissue Sarcoma of the Trunk and Extremities, Stage II Soft Tissue Sarcoma of the Trunk and Extremities, Stage I Soft Tissue Sarcoma of the Trunk and Extremities

Keywords

Soft Tissue

Brief summary

This phase I/II trial studies the side effects and best dose of cabozantinib when given with radiation therapy and how well it works in treating patients with sarcoma of the extremities. Cabozantinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving cabozantinib with radiation therapy may make the tumors smaller and reduce the amount of normal tissue that needs to be removed.

Detailed description

OUTLINE: This is a phase I, dose-escalation study of cabozantinib followed by a phase II, dose-expansion study. Patients receive cabozantinib S-malate orally (PO) once daily (QD) on days 1-21. Cycles repeat every 21 days until the completion of radiation therapy in the absence of disease progression or unacceptable toxicity. Beginning Cycle 1 Day 8, patients also undergo standard of care radiation therapy for 5-6 weeks. After completion of study treatment, patients are followed up at 30 days, every 12 weeks for up to 1 year, then every 6 months for up to 3 years.

Interventions

DRUGCabozantinib S-malate

Given PO

RADIATIONRadiation Therapy

Undergo standard of care radiation therapy

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Subjects, \>= 18 years old, must have a histologically confirmed diagnosis of sarcomas of the extremities (which may include gluteal muscle involvement) for which neoadjuvant radiation therapy followed by surgical resection is a planned intervention * Subjects whose bowel cannot be completely protected from radiation exposure due to primary tumor location (e.g., proximal lower extremity) will be excluded * Subjects must have one or more measurable target lesions by RECIST version (v) 1.1, assessed via computed tomography (CT) scan or magnetic resonance imaging (MRI) * At the time of study enrollment, subjects must have a tumor burden that is judged to be surgically resectable * Absolute neutrophil count (ANC) \>= 1500/mm\^3 (\>= 1.5 GI/L) without granulocyte colony-stimulating factor support in the last 28 days * White blood cell count \>= 2500/mm\^3 (\>= 2.5 GI/L) * Platelets \>= 100,000/mm\^3 (\>=100 GI/L) without transfusion in the last 28 days * Hemoglobin \>= 9 g/dL (\>= 90 g/L) without transfusion in the last 28 days * Alanine aminotransferase (ALT), aspartate aminotransferase (AST) =\< 3 X upper limit of normal (ULN) * Alkaline phosphatase (ALP) =\< 3 X upper limit of normal (ULN) * ALP =\< 5 X ULN is permitted in subjects with documented bone metastases (phase 1 only) * Total bilirubin =\< 1.5 x ULN (for subjects with Gilbert's disease =\< 3 X ULN) * Serum albumin \>= 2.8 g/dl * Serum creatinine =\< 2.0 x ULN or calculated creatinine clearance \>= 30 mL/min (\>= 0.5 mL/sec) using the Cockcroft-Gault equation * Urine protein/creatinine ratio (UPCR) =\< 1 mg/mg (=\< 113.2 mg/mmol) * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 * Male or non-pregnant and non-breast feeding female: * Females of child-bearing potential must agree to use highly effective contraception without interruption from initiation of therapy and while on study medication and have a negative serum pregnancy test (beta-human chorionic gonadotropin \[B-hCG\]) result at screening and agree to ongoing pregnancy testing during the study, and at the end of study treatment. A highly effective method of contraception is defined as one that results in a low failure rate (that is, \< 1% per year), when used consistently and correctly, such as implants, injectables, combined oral contraceptives, some intrauterine contraceptive devices, sexual abstinence, or a vasectomized partner * Male subjects must practice abstinence or agree to use a condom during sexual contact with a pregnant female or a female of childbearing potential while participating in the study * Life expectancy of \> 3 months, as determined by the investigator * Ability to understand and sign informed consent * Willingness and ability to comply with scheduled visits, laboratory tests, and other study procedures

Exclusion criteria

* Receipt of any type of cytotoxic, biologic or other systemic anticancer therapy (including investigational) for the investigational diagnosis * Receipt of any prior radiation therapy for the investigational diagnosis * Known central nervous system (CNS) metastases * Concomitant anticoagulation with oral anticoagulants(e.g., warfarin, direct thrombin and factor Xa inhibitors) or platelet inhibitors (e.g., clopidogrel). Allowed anticoagulants are the following: * Low-dose aspirin for cardioprotection (per local applicable guidelines) is permitted * Low-dose low molecular weight heparins (LMWH) are permitted * Anticoagulation with therapeutic doses of LMWH is allowed in subjects without known brain metastases who are on a stable dose of LMWH for at least 6 weeks before first dose of study treatment, and who have had no clinically significant hemorrhagic complications from the anticoagulation regimen or the tumor. Subjects with hemoptysis, central nervous system hemorrhage or gastrointestinal hemorrhage within the last 6 months prior to treatment are excluded * The subject has uncontrolled, significant intercurrent or recent illness including, but not limited to, the following conditions: * Cardiovascular disorders: * Congestive heart failure New York Heart Association Class 3 or 4, unstable angina pectoris, serious cardiac arrhythmias * Uncontrolled hypertension defined as sustained blood pressure (BP) \> 150 mm Hg systolic or \> 100 mm Hg diastolic despite optimal anti-hypertensive treatment * Stroke (including transient ischemic attack \[TIA\]), myocardial infarction (MI), or other ischemic event, or thromboembolic event (e.g., deep venous thrombosis, pulmonary embolism) within 6 months before first dose. * Uncontrolled serious medical or psychiatric illness * Gastrointestinal (GI) disorders including those associated with a high risk of perforation or fistula formation: * The subject has evidence of tumor invading the GI tract, active peptic ulcer disease, inflammatory bowel disease (e.g., Crohn's disease), diverticulitis, cholecystitis, symptomatic cholangitis or appendicitis, acute pancreatitis, acute obstruction of the pancreatic duct or common bile duct, or gastric outlet obstruction * Abdominal fistula, GI perforation, bowel obstruction, or intra-abdominal abscess within 6 months before first dose * Note: Complete healing of an intra-abdominal abscess must be confirmed before first dose * Clinically significant hematuria, hematemesis, or hemoptysis of \> 0.5 teaspoon (2.5 ml) of red blood, or other history of significant bleeding (e.g., pulmonary hemorrhage) within 12 weeks before first dose * Cavitating pulmonary lesion(s) or known endotracheal or endobronchial disease manifestation * Lesions invading or encasing any major blood vessels * Other clinically significant disorders that would preclude safe study participation * Serious non-healing wound/ulcer/bone fracture * Uncompensated/symptomatic hypothyroidism * Moderate to severe hepatic impairment (Child-Pugh B or C) * Major surgery (e.g., GI surgery, removal or biopsy of brain metastasis) within 8 weeks before first dose of study treatment. Complete wound healing from major surgery must have occurred at least 30 days before first dose, and from minor surgery (e.g., simple excision, tooth extraction) at least 10 days before first dose. Subjects with clinically relevant ongoing complications from prior surgery are not eligible * Corrected QT interval calculated by the Bazett's formula (corrected QT \[QTc\]) \> 480 ms per electrocardiogram (ECG) within 28 days before first dose of study treatment * Note: If a single ECG shows a QTc with an absolute value \> 480 ms, two additional ECGs at intervals of approximately 3 min must be performed within 30 min after the initial ECG, and the average of these three consecutive results for QTc will be used to determine eligibility * Pregnant or lactating females * Inability to swallow tablets * Previously identified allergy or hypersensitivity to components of the study treatment formulations * Diagnosis of another malignancy within 2 years before first dose of study treatment, except for superficial skin cancers, or localized, low-grade tumors deemed cured and not treated with systemic therapy * Concurrent use of medications (especially those interacting with CYP3A417) that potentially interact unsafely with cabozantinib which cannot be discontinued or substituted * Subjects with a sarcoma which has other, defined treatments or biology distinctly different from those of soft tissue sarcomas in general. Including, but not limited to, Ewing's sarcoma, rhabdomyosarcoma, gastrointestinal stromal tumors, Kaposi's sarcoma, Wilms' tumor * Transfusion of blood product or granulocyte-colony stimulating factor (G-CSF) support factor within the last 28 days * Recent infection requiring systemic anti-infective treatment that was completed =\< 14 days prior to enrollment (except for uncomplicated urinary tract infection or upper respiratory tract infection)

Design outcomes

Primary

Measure	Time frame	Description
Recommended Phase 2 Dose of Cabozantinib S-malate (Cabozantinib) (Phase I)	Up to 21 days	Cabozantinib treatment begins 8 days prior to initiation of radiation therapy and continues through completion of radiation therapy.
Rate of Relapse (Phase II)	At 12 months after treatment initiation	No patients were enrolled in Phase II portion of study - outcome measure based on Phase I patients.

Secondary

Measure	Time frame	Description
Objective Response Rate	Up to 1 year	Will be defined by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria. Includes those who had complete response and partial response.
Rate of Local Relapse	Up to 3 years	Evaluated utilizing the Exact Clopper-Pearson method.
Rate of Distant Relapse	Up to 3 years	Evaluated utilizing the Exact Clopper-Pearson method.
Rate of Pathologic Response(>90%)	Up to 1 year	Evaluated utilizing the Exact Clopper-Pearson method.
Overall Survival	Up to 1 year	Evaluated utilizing the Exact Clopper-Pearson method.
Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Up to 30 days after last dose of investigational product (an average of up to 12 weeks)	Adverse events will be graded by National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v) 5.0.
Rate of Treatment Discontinuation Prior to Neoadjuvant Radiation Therapy	Up to 1 year	Evaluated utilizing the Exact Clopper-Pearson method.
Relapse-free Survival	Up to 1 year	Evaluated utilizing the Exact Clopper-Pearson method.
Rate of Surgical Excision With Negative Margins	Up to 1 year	Evaluated utilizing the Exact Clopper-Pearson method.

Countries

United States

Participant flow

Pre-assignment details

Study was terminated prior to enrolling participants in Phase II portion of study.

Participants by arm

Arm	Count
Phase 1: 40 mg Cabozantinib S-malate, Radiation Therapy Patients receive 40 mg cabozantinib S-malate PO QD on days 1-21. Cycles repeat every 21 days until the completion of radiation therapy in the absence of disease progression or unacceptable toxicity. Beginning cycle 1 day 8, patients also undergo standard of care radiation therapy for 5-6 weeks. Cabozantinib S-malate: Given PO Radiation Therapy: Undergo standard of care radiation therapy	3
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy Patients receive 60 mg cabozantinib S-malate PO QD on days 1-21. Cycles repeat every 21 days until the completion of radiation therapy in the absence of disease progression or unacceptable toxicity. Beginning cycle 1 day 8, patients also undergo standard of care radiation therapy for 5-6 weeks. Cabozantinib S-malate: Given PO Radiation Therapy: Undergo standard of care radiation therapy	3
Total	6

Baseline characteristics

Characteristic	Phase 1: 40 mg Cabozantinib S-malate, Radiation Therapy	Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Total
Age, Customized 18-29	0 Participants	0 Participants	0 Participants
Age, Customized 30-39	0 Participants	0 Participants	0 Participants
Age, Customized 40-49	1 Participants	1 Participants	2 Participants
Age, Customized 50-59	2 Participants	1 Participants	3 Participants
Age, Customized 60-69	0 Participants	1 Participants	1 Participants
Age, Customized 70+	0 Participants	0 Participants	0 Participants
Ethnicity (NIH/OMB) Hispanic or Latino	1 Participants	1 Participants	2 Participants
Ethnicity (NIH/OMB) Not Hispanic or Latino	2 Participants	2 Participants	4 Participants
Ethnicity (NIH/OMB) Unknown or Not Reported	0 Participants	0 Participants	0 Participants
Race (NIH/OMB) American Indian or Alaska Native	0 Participants	0 Participants	0 Participants
Race (NIH/OMB) Asian	1 Participants	0 Participants	1 Participants
Race (NIH/OMB) Black or African American	0 Participants	0 Participants	0 Participants
Race (NIH/OMB) More than one race	0 Participants	0 Participants	0 Participants
Race (NIH/OMB) Native Hawaiian or Other Pacific Islander	0 Participants	0 Participants	0 Participants
Race (NIH/OMB) Unknown or Not Reported	0 Participants	0 Participants	0 Participants
Race (NIH/OMB) White	2 Participants	3 Participants	5 Participants
Sex: Female, Male Female	1 Participants	2 Participants	3 Participants
Sex: Female, Male Male	2 Participants	1 Participants	3 Participants

Adverse events

Event type	EG000 affected / at risk	EG001 affected / at risk
deaths Total, all-cause mortality	1 / 3	0 / 3
other Total, other adverse events	3 / 3	3 / 3
serious Total, serious adverse events	0 / 3	0 / 3

Outcome results

Primary

Rate of Relapse (Phase II)

No patients were enrolled in Phase II portion of study - outcome measure based on Phase I patients.

Time frame: At 12 months after treatment initiation

Arm	Measure	Value (NUMBER)
Treatment (Cabozantinib S-malate, Radiation Therapy)	Rate of Relapse (Phase II)	0 percentage of participants
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Rate of Relapse (Phase II)	33 percentage of participants

Primary

Recommended Phase 2 Dose of Cabozantinib S-malate (Cabozantinib) (Phase I)

Cabozantinib treatment begins 8 days prior to initiation of radiation therapy and continues through completion of radiation therapy.

Time frame: Up to 21 days

Arm	Measure	Value (NUMBER)
Treatment (Cabozantinib S-malate, Radiation Therapy)	Recommended Phase 2 Dose of Cabozantinib S-malate (Cabozantinib) (Phase I)	60 mg

Secondary

Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.

Adverse events will be graded by National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v) 5.0.

Time frame: Up to 30 days after last dose of investigational product (an average of up to 12 weeks)

Arm	Measure	Group	Value (NUMBER)
Treatment (Cabozantinib S-malate, Radiation Therapy)	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 2	7 adverse events experienced
Treatment (Cabozantinib S-malate, Radiation Therapy)	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 4	0 adverse events experienced
Treatment (Cabozantinib S-malate, Radiation Therapy)	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 3	2 adverse events experienced
Treatment (Cabozantinib S-malate, Radiation Therapy)	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 5	0 adverse events experienced
Treatment (Cabozantinib S-malate, Radiation Therapy)	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 1	20 adverse events experienced
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 5	0 adverse events experienced
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 1	24 adverse events experienced
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 2	5 adverse events experienced
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 3	3 adverse events experienced
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Incidence of Adverse Events - Treatment-related Adverse Events (AEs) Experienced by Participants Evaluated by CTCAE 5.0 and Determined to be Possibly Related, Probably Related, or Definitely Related to Cabozantinib.	Grade 4	0 adverse events experienced

Secondary

Objective Response Rate

Will be defined by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria. Includes those who had complete response and partial response.

Time frame: Up to 1 year

Arm	Measure	Value (NUMBER)
Treatment (Cabozantinib S-malate, Radiation Therapy)	Objective Response Rate	0 percentage of participants
Phase 1: 60 mg Cabozantinib S-malate, Radiation Therapy	Objective Response Rate	0 percentage of participants

Secondary