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Clinical Trials/NCT04679207
NCT04679207
Completed
Not Applicable

A Pilot Study of Ultrasound-guided Vacuum-assisted Excision of Breast Cancers (the PICASSO Study)

Manchester University NHS Foundation Trust1 site in 1 country7 target enrollmentStarted: June 25, 2018Last updated:
ConditionsBreast Cancer

Overview

Phase
Not Applicable
Status
Completed
Enrollment
7
Locations
1
Primary Endpoint
Greatest dimension of the Cancer

Overview

Brief Summary

This study is looking into whether the procedure called Vacuum Assisted Excision (VAE) is a safe method for the removal of small and medium sized invasive breast cancers in patients who are unfit or have refused to have surgery to remove cancer.

Recruitment Target: 20

Study Design

Study Type
Observational
Observational Model
Cohort
Time Perspective
Prospective

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
Female
Accepts Healthy Volunteers
No

Inclusion Criteria

  • The patient is aged 18 years or older.
  • Diagnosis on core needle biopsy of invasive cancer of the breast
  • Unifocal invasive tumour on imaging (hormone receptor positive or negative)
  • T1 or T2 primary or locally recurrent tumour measuring ≤25mm on imaging, excluding any adjacent ductal carcinoma in situ (largest of the measurements on mammography (including digital breast tomosynthesis if performed) and ultrasound)
  • The tumour is clearly visible on ultrasound
  • Vacuum-assisted excision of the entire ultrasonically visible tumour is deemed to be technically feasible
  • The patient is considered to be at high risk of complications or death from a general anaesthetic and therefore surgery under general anaesthesia is not considered appropriate. This must be confirmed by agreement by two named consultant breast surgeons, a multidisciplinary team meeting (including at least one consultant breast surgeon) or by formal anaesthetic assessment. Unsuitability for surgery under local anaesthetic must be confirmed by a consultant breast surgeon.
  • or - The patient refuses to undergo surgery. This must be confirmed by a consultant surgeon and breast care nurse following full discussion of the treatment options.
  • or - The patient is considered unlikely to benefit from surgical removal of the cancer by virtue of known metastatic disease or other life-shortening condition. This must be confirmed by discussion in a multidisciplinary team meeting which includes an oncologist.
  • The patient has given written informed consent for the study Women who are already on primary endocrine therapy for a breast cancer and meet the inclusion criteria will also be eligible.

Exclusion Criteria

  • The patient is on anticoagulants or has a known clotting disorder
  • Pregnancy or lactation
  • Allergy to local anaesthetic

Outcomes

Primary Outcomes

Greatest dimension of the Cancer

Time Frame: 1 year

The proportion of participants in whom the greatest dimension of the cancer on imaging at 1 year post-vacuum assisted excision (VAE) is ≤50% of its pre-VAE size.

Secondary Outcomes

  • Complication rate of VAE(12 months)
  • Recruitment Uptake(12 months)
  • Procedure Times(12 months)
  • Proportion of Cancer removed(12 months)
  • Procedure pain and acceptability(12 months)
  • proportion willing to undergo the procedure again if necessary.(12 months)
  • Requirement of salvage surgery(2 years post VAE)
  • Residual Cancer after VAE(2 years post VAE)
  • Histopathology of cavity walls(Imaging at 1 year and 2 years.)

Investigators

Sponsor Class
Other Gov
Responsible Party
Sponsor

Study Sites (1)

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