CompletedNot Applicable

Does Anesthesia Technique Impact on the Long-term Outcome 5 and 10 Years After the First Intervention in Primary Breast Cancer Surgery? A Follow-up Analysis.

Switzerland161 participantsStarted 2025-09-01

Plain-language summary

Goal of this observational study is to analyze data about cancer recurrence rates 5 and 10 years after primary breast cancer surgery with propofol or sevoflurane anesthesia. Only patients who were enrolled in the primary interventional trial can participate.

Who can participate

Age range

18 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Only patients who consented and participated in the trial CEC N° 2016 - 01791 can be enrolled. * GC must be available for patients with follow-up consultations at USZ. * For patients with follow-up consultations outside of the USZ for those with unknown GC status, and for those who declined the GC, a study-specific written informed consent must be obtained, which will allow the research team to contact the responsible physician Exclusion Criteria: * Declined study-specific informed consent * Inability to provide study-specific consent

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Primary co-outcomes are defined as overall survival and disease-free survival.

Timeframe: 5 and 10 years after first enrollement

Trial details

NCT IDNCT07689253

SponsorUniversity of Zurich

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2026-01-15

View on ClinicalTrials.gov More Breast Cancer Females trials