Local Treatment in ER-positive/HER2-negative Oligo-metastatic Breast Cancer (CLEAR)

February 12, 2019 updated by: Joon Jeong, Gangnam Severance Hospital

Local Treatment in Addition to Endocrine Therapy in ER-positive/HER2-negative Oligo-metastatic Breast Cancer (CLEAR): a Multicentre, Single -Arm, Phase 2 Trial

Local treatment in addition to endocrine treatment as 1st line for oligo-metastatic ER-positive/HER2-negative breast cancer.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Local treatment included surgical resection, stereotactic body radiotherapy, palliative radiotherapy, and radiofrequency ablation. Stereotactic body radiotherapy is preferred as a radiation modality.

Endocrine therapies with/without target therapy including CDK4/6 inhibitors or mTOR inhibitors are the mainstay of 1st line treatment for ER-positive/HER2-negative metastatic breast cancer.

Study Type

Interventional

Enrollment (Anticipated)

110

Phase

  • Phase 2

Contacts and Locations

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

Study Contact

  • Name: Sung Gwe Ahn, Ph.D.
  • Phone Number: 82-2-2019-4402
  • Email: asg2004@yuhs.ac

Study Contact Backup

  • Name: Joon Jeong, Ph.D.
  • Phone Number: 82-2-2019-3379
  • Email: gsjjoon@yuhs.ac

Study Locations

  • Korea, Republic of
      • Seoul, Korea, Republic of, 135720
        • Recruiting
        • Gangnam Severance Hospital
        • Contact:
        • Contact:

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

20 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

-ER-positive/HER2-negative in primary tumor

  • Oligometastases: ≤ 2 lesions in single organ or site (lung, bone, liver, adrenal glands, distant LNs)
  • Recurrent cancer after completion of primary treatment (RFI≥1year)
  • Metastatic lesions are feasible for resection or radiotherapy (Size≤3cm)

Exclusion Criteria:

  • De Novo metastatic cancer at initial diganosis
  • Recurrence-free inverval < 1 year

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

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Endocrine and local treatments

Endocrine therapy is a standard-of-care for 1st line treatment in the patients with ER+/HER2- metastatic breast cancer.

Endocrine options included aromatase inhibitors, aromatase inhibitors with CDK4/6 inhibitors, fulvestrant, fulvestrant with CDK4/6 inhibitors, everolimus with exemestane, tamoxifen. For premenopausal women, agents for ovarian function suppression using GnRH agonists or surgical ovarian ablation including bilateral salpingo-oophorectomy are allowed.

Local treatments for metastatic lesions will be added in this group.

Local treatments include modalities described below:

i) Surgical resection: the achievement of tumor-free margin is not obligatory. ii) Stereotactic body radiotherapy iii) Radiofrequency ablation
Procedure: Surgical resection
Surgical resection for their metastatic lesions will be performed. Achievement of tumor-free margin is not mandatory.
Radiation: Stereotactic body radiotherapy
Deliver appropriate metastasis directed radiotherapy while minimizing exposure of surrounding normal tissues. Total radiation dose and fractions are various according to metastatic lesions (57~97.5Gy/6~10 Fraction).
Other Names:
  • SBRT
Procedure: Radiofrequency ablation
RFA is a localized thermal treatment technique designed to induce tumor destruction by heating the tumor tissue to temperatures that exceed 60℃. The alternating current of radiofrequency waves passing down from an uninsulated electrode tip into the surrounding tissues generates changes in the direction of ions and creates ionic agitation and frictional heating. This tissue heating then drives extracellular and intracellular water out of the tissue, resulting in tissue destruction by coagulative necrosis.
Other Names:
  • RFA

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression-free survival
Time Frame: From the date of registration to the date of first PFS failure or last follow-up; assessed up to 6 years; Median PFS of all registered patients will be over 30 months
Failure: progression or death due to any cause
From the date of registration to the date of first PFS failure or last follow-up; assessed up to 6 years; Median PFS of all registered patients will be over 30 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall survival
Time Frame: From the date of registration to the date of death or last follow-up; assessed up to 10 years
Failure: death due to any cause
From the date of registration to the date of death or last follow-up; assessed up to 10 years

Collaborators and Investigators

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

Sponsor

Gangnam Severance Hospital

Collaborators

Samsung Medical Center
Asan Medical Center
Severance Hospital

Investigators

  • Principal Investigator: Joon Jeong, Ph.D., Gangnam Severance Hospital

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 (Actual)

August 1, 2018

Primary Completion (Anticipated)

July 31, 2021

Study Completion (Anticipated)

July 31, 2025

Study Registration Dates

First Submitted

November 16, 2018

First Submitted That Met QC Criteria

November 20, 2018

First Posted (Actual)

November 23, 2018

Study Record Updates

Last Update Posted (Actual)

February 15, 2019

Last Update Submitted That Met QC Criteria

February 12, 2019

Last Verified

February 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CLEAR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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