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Anesthesia and Circulating Tumor Cells in Breast Cancer

This study is currently recruiting participants.
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Verified June 2016 by University of Zurich
Information provided by (Responsible Party):
University of Zurich Identifier:
First received: December 3, 2013
Last updated: June 17, 2016
Last verified: June 2016
Serious concern about the role of anesthesia in tumor recurrence has considerably risen over years, but the lack of surrogate markers for tumor spreading made trials addressing this issue difficult to realize. In breast cancer patients CTC positivity has been recently recognized as an independent prognostic factor. In this respect, we postulated that in a first step changes in the number of CTC after general anesthesia would help to determine the effect of anesthesia on this tumor marker.

Condition Intervention Phase
Female Breast Carcinoma Drug: Sevoflurane Drug: Propofol Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Does Anesthesia Technique Affect the Presence of Circulating Tumor Cells in Primary Breast Carcinoma? A Randomised Controlled Trial.

Resource links provided by NLM:

Further study details as provided by University of Zurich:

Primary Outcome Measures:
  • Number of CTC before and after administration of anesthetics [ Time Frame: 5 days ]

Estimated Enrollment: 231
Study Start Date: March 2014
Estimated Study Completion Date: August 2017
Estimated Primary Completion Date: August 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Sevoflurane
General anesthesia using Sevoflurane
Drug: Sevoflurane
Active Comparator: Propofol
General anesthesia using propofol TCI
Drug: Propofol

Detailed Description:
Patients with primary breast cancer will be randomized to either propofol or sevoflurane anesthesia for curative surgery. CTC will be determined in the pre- as well as postoperative phase and the kinetic of CTC in the two groups will be compared.

Ages Eligible for Study:   18 Years to 85 Years   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion criteria: > Female

  • Age 18 to 85
  • Primary breast cancer (TNM stage = T1-3, N0-2, M0)
  • Primary surgery
  • Written informed consent

Exclusion criteria:

  • Metastatic breast cancer
  • Other than primary surgery (recurrence, reconstruction)
  • Pre-operative chemotherapy or radiotherapy
  • Auto-immune disease, HIV, other active cancer, age>85, ASA IV or V
  • Concomitant regional anesthesia
  • Chronic opioids medication
  • Any systemic immunosuppressive therapy
  • Known hypersensitivity or suspected allergy to propofol, soya or egg proteins
  • Known hypersensitivity to volatile anesthetics (malignant hyperthermia)
  • Pregnancy
  • Breast feeding
  • Non German-speaking patients
  • Enrollment in any other clinical trial during the course of this trial, 30 days prior to its beginning or 30 days after its completion
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT02005770

Contact: Beatrice Beck Schimmer, Prof MD
Contact: Martin Schläpfer, MD

University Hospital Zurich, Institute of Anesthesiology Recruiting
Zurich, ZH, Switzerland, CH-8091
Contact: Beatrice Beck-Schimmer, Prof MD   
Sub-Investigator: Frédérique Hovaguimian, MD         
Institute of Physicians for Anesthesia and Intensive Care Klinik Hirslanden Recruiting
Zurich, Switzerland, 8032
Contact: Manfred Seeberger, Prof MD   
Contact: Rölli Urs, MD   
Sponsors and Collaborators
University of Zurich
Principal Investigator: Beatrice Beck Schimmer, Prof MD University Hospital Zurich, Institute of Anesthesiology
  More Information

Responsible Party: University of Zurich Identifier: NCT02005770     History of Changes
Other Study ID Numbers: 2013-0408
Study First Received: December 3, 2013
Last Updated: June 17, 2016

Additional relevant MeSH terms:
Breast Neoplasms
Neoplastic Cells, Circulating
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Neoplasms by Site
Breast Diseases
Skin Diseases
Neoplasm Metastasis
Neoplastic Processes
Pathologic Processes
Central Nervous System Depressants
Physiological Effects of Drugs
Hypnotics and Sedatives
Anesthetics, Intravenous
Anesthetics, General
Platelet Aggregation Inhibitors
Anesthetics, Inhalation processed this record on September 21, 2017