Detection of Circulating Tumor Cells in Patients With Sarcomas (CTCS)

June 29, 2018 updated by: Ludmilla Thome Domingos Chinen, PhD, AC Camargo Cancer Center

Detection of Circulating Tumor Cells in Patients With Metastatic Sarcomas

The sarcomas represent 1% of all cancers in adults, 8% in adolescents and young people, and 10% in children. Even though it is a rare cancer, it contributes to a significant loss of years of life in comparison with other types of cancer, due the fact that it affects children and young people. The diagnosis and treatment are difficult, considering the diversity and rarity of this disease. In addition, on average, more than 50% of patients with high-grade sarcoma present tumor relapse and distant recurrence is considered the main cause of death. The presence of Circulating Tumor Cells (CTCs) in the blood of patients with sarcoma may be an early marker of tumor invasion, because it is known that the CTCs circulate in the blood for months or years before the development of metastases. The CTCs can be used to monitor the response of the tumor to treatment, in order to match time, dose, and type of therapy.

Objectives: collect blood from patients with different types of sarcoma (leiomyosarcoma, synovial sarcoma, pleomorphic sarcoma and liposarcoma) in order to isolate and quantify CTCs. The investigators also have an intention to identify genes of resistance to treatment in these cells.

Study Overview

Status

Unknown

Conditions

Detailed Description

Methodology: This is a prospective study, to be made by whole blood collection from 40 patients with different types of sarcomas (leiomyosarcoma, pleomorphic sarcoma, synovial sarcoma and liposarcoma). The collections will be made in three different moments: before the beginning of the treatment, during and at the end of this (8 mL). Blood samples will be processed and filtered on ISET system for the isolation and quantification of CTCs. Later, it will be performed immunocytochemistry (ICQ) single and/or double staining for protein assessment. The following proteins will be assessed: CD45, MRP1, MRP2 and MRP7.

Expected Results: The investigators hope that this study can show if the CTCs can be used as "liquid biopsy" in patients with leiomyosarcoma, synovium and pleomorphic sarcoma and liposarcoma.

Study Type

Observational

Enrollment (Anticipated)

20

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • SP
      • Sao Paulo, SP, Brazil, 01509900
        • Recruiting
        • Accamargo Cancer Center
        • Contact:
        • Principal Investigator:
          • Ludmilla Chinen, PhD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

patients with 4 types of metastatic sarcomas: leiomyosarcoma, pleomorphic sarcoma, synovial sarcoma and liposarcoma.

Description

Inclusion Criteria:

  • 18 years or more;
  • types of sarcomas: leiomyosarcoma, pleomorphic sarcoma, synovial sarcoma and liposarcoma.
  • extension of the disease determined by physical examination and imaging;
  • measurable disease by RECIST criteria (Response Evaluation Criteria in Solid Tumors);

Exclusion Criteria:

  • patients who have undergone previous therapy in the last three weeks;
  • patients with a history of other cancer in the past two years.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
progression free survival
Time Frame: 6 months
time to first progression until the second one
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

AC Camargo Cancer Center

Investigators

  • Principal Investigator: Ludmilla Chinen, PhD, AC Camargo Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2015

Primary Completion (Anticipated)

June 1, 2018

Study Completion (Anticipated)

June 1, 2018

Study Registration Dates

First Submitted

October 27, 2016

First Submitted That Met QC Criteria

December 2, 2016

First Posted (Estimate)

December 6, 2016

Study Record Updates

Last Update Posted (Actual)

July 2, 2018

Last Update Submitted That Met QC Criteria

June 29, 2018

Last Verified

June 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ACFrance

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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