Sequence of Radiation and Targeted Therapy in Brain Metastases

The Optimal Sequence of Intracranial Radiotherapy Compared to Systematic Tyrosine Kinase Inhibitors for Gene-driven Brain Metastases in Targeted Treatment Era

The investigators conducted a single institutional, retrospective cohort study to demonstrate the appropriate treatment strategy of upfront intracranial radiotherapy or upfront targeted therapy in patients with brain metastases, including an assessment of its feasibility and toxicity.

Study Overview

Study Type

Observational

Enrollment (Actual)

570

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

    • Beijing
      • Beijing, Beijing, China, 100021
        • Chinese Academy of Medical Sciences

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 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients who underwent hypofractionated stereotactic radiotherapy planning at our institution from October 2010 to October 2020

Description

Inclusion Criteria:

  • Had histologically proven primary cancer.
  • Had newly diagnosed brain metastases in contrast-enhanced MRI.
  • Brain metastases focus should be measurable.
  • All the patients should safely receive radiotherapy and/or systematic tyrosine kinase inhibitors.
  • Karnofsky performance score (KPS) ≥60 or KPS ≥40, but only caused by brain metastases.

Exclusion Criteria:

  • Patients with prior intracranial local treatments, such as surgery and radiotherapy without dose prescription in detail
  • Patients with leptomeningeal metastases at first diagnosis.
  • Had synchronous or metachronous malignancies that might affect survival.
  • Had severe systemic diseases, abnormal conditions that might lead to incoordinate behavior during the implementation of clinical measures.
  • Had incomplete sociodemographic and/or clinicopathologic baseline data

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

Cohorts and Interventions

Group / Cohort
The upfront radiotherapy group
The upfront targeted-therapy group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Intracranial progression-free survival
Time Frame: The interval from the start of initial intracranial treatment to first documented intracranial progression, or date of death from any cause, whichever came first, assessed up to 3 to 5 years
The survival time of patients before any intracranial progression
The interval from the start of initial intracranial treatment to first documented intracranial progression, or date of death from any cause, whichever came first, assessed up to 3 to 5 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall survival
Time Frame: The time from the date of initial intracranial treatment until death from any cause or censored on the last follow-up, whichever came first, assessed up to 3 to 5 years
The survival time of patients
The time from the date of initial intracranial treatment until death from any cause or censored on the last follow-up, whichever came first, assessed up to 3 to 5 years
Brain metastasis-specific survival
Time Frame: The interval from the start of initial intracranial treatment to death from brain metastases or censored on the last follow-up, whichever came first, assessed up to 3 to 5 years
The survival time of patients dead from brain metastases
The interval from the start of initial intracranial treatment to death from brain metastases or censored on the last follow-up, whichever came first, assessed up to 3 to 5 years

Collaborators and Investigators

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

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.

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)

October 1, 2010

Primary Completion (Actual)

March 1, 2021

Study Completion (Actual)

March 1, 2021

Study Registration Dates

First Submitted

April 2, 2021

First Submitted That Met QC Criteria

April 5, 2021

First Posted (Actual)

April 6, 2021

Study Record Updates

Last Update Posted (Actual)

April 6, 2021

Last Update Submitted That Met QC Criteria

April 5, 2021

Last Verified

April 1, 2021

More Information

Terms related to this study

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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