A Study Assessing Efficacy & Safety of Ribociclib in Patients With Advanced Well/Dedifferentiated Liposarcoma

Shamir Medical Center (Assaf-Harofeh)

Status and phase

Unknown

Phase 2

Conditions

Soft-Tissue Sarcoma

Liposarcomas, Dedifferentiated

Liposarcoma - Well Differentiated

Liposarcoma; Mixed Type

Treatments

Drug: Ribociclib

Study type

Interventional

Funder types

Other

Identifiers

NCT03096912

243/16

Details and patient eligibility

About

The purpose of this study is to determine whether ribociclib are effective and safe in the treatment of progressive well/dedifferentiated liposarcoma (WDL/DDL).

Full description

The expected duration of this study is 36 months (24 months accrual period and 12 month follow up period). Enrollment into the screening or treatment phase of the study will be stopped when the actual subject numbers have been achieved.

This single arm single institution, open label, prospective, phase II trial will evaluate the efficacy and safety of oral 600mg/daily in 28 day cycles of ribociclib in advanced well-differentiated liposarcoma (WDL) and de-differentiated liposarcoma (DDL) patients. Number of patients in the study will reflect the reconciliation between statistical requirements and incidence.

Treatment will continue until disease progression, development of unacceptable toxicity, noncompliance or withdrawal of consent by the patient or investigator decision.

All screening requirements must be completed within 28 days of the visit (except for CDK4/6 amplification and pRb, p16 and cyclin D staining status which may be completed in advance). Patients will be examined on cycle 1 day-1 and every 2 weeks, including complete blood count (CBC) and chemistry, for the first 8 weeks of treatment, and thereafter every month until disease progression. CT/MRI imaging (contrast) will be performed every 8 weeks for response evaluation. Clinical benefit as well as individual categories of response (complete response (CR), partial response (PR), stable disease (SD) and progressive disease (PD) will be determined using Response Evaluation Criteria in Solid Tumors 1.1 (RECIST). Response duration endpoints, including PFS, PFS at 12 weeks and OS will be assessed using the Kaplan-Meier method. Toxicity (AEs) will be recorded using the NCI- Common Toxicity Criteria for Adverse Effects v 4.03 (NCI-CTCAE). Screening procedures will include medical history, physical examination, blood test, baseline CT/MRI imaging and formalin-fixed tissue submission for FoundationOne mutational analysis.

Enrollment

30 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Written informed consent
Age ≥ 18 years
Histological confirmed diagnosis of WDL/DDL with metastatic or locally advanced disease not amenable to complete resection
WDL/DDL patients must have documentation of disease progression within 6 months prior to study entry
Eastern Cooperative Oncology Group (ECOG) performance status of 0-1
Measurable disease by RECIST v1.1 criteria. At least one measurable lesion located outside of a previously irradiated area
Formalin fixed paraffin embedded tumor blocs and representative hematoxylin/eosin slides (preferably both) should be provided for immunohistochemistry staining and molecular analysis of 50 gene signature panel and must have increased CDK4 gene copy number (at least >/=3) and proficient Rb gene
Patient has adequate bone marrow and organ function
Must be able to swallow ribociclib capsules/tablets

Exclusion criteria

A known hypersensitivity to ribociclib or any of its excipients
A concurrent malignancy or malignancy within 3 years prior to starting study drug, with the exception of adequately treated, basal or squamous cell carcinoma, non-melanomatous skin cancer or curatively resected cervical cancer
Patients with central nervous system (CNS) involvement at least 4 weeks from prior therapy completion
Clinically significant, uncontrolled heart disease (including history of any cardiac arrhythmias, e.g., ventricular, supraventricular, nodal arrhythmias, or conduction abnormality within 12 months of screening)
On screening, inability to determine the QTcF interval on the ECG (i.e.: unreadable or not interpretable) or QTcF >450 msec
Participation in a prior investigational study within 30 days prior to enrollment
Patient has had major surgery within 14 days prior to starting study drug