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Study details
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Serum Tumor Marker Monitoring for Breast Cancer

SWOG Cancer Research Network
NCT IDNCT03723928ClinicalTrials.gov data as of Apr 2026
Target enrollment

739

Study length

about 18 years

Ages

18+

Locations

709 sites in AK, AR, AZ +42

What this study is about

This trial is testing if using serum tumor markers to monitor hormone receptor-positive, HER2-negative metastatic breast cancer is as effective as usual monitoring. It involves measuring tumor markers and assessing quality of life while comparing the results to standard disease monitoring methods.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Anxiety Questionnaire Administration
  • 2.Quality-of-Life Assessment
  • 3.Use Serum Tumor Marker directed disease monitoring
  • +1 more

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Standard

How treatment is administered

Treatment Assignment
Randomized (Open Label)

You are randomly assigned, but you will know your treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Endpoints

Primary: Assessment of whether patients monitored with STMDDM have non-inferior overall survival compared with patients monitored with usual care

Secondary: Assessment of quality of life of patients monitored with STMDDM versus patients monitored with usual care

Body systems

Oncology