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NCT number NCT02739425
Study type Interventional
Source The Royal Wolverhampton Hospitals NHS Trust
Contact Lorraine Jacques
Phone 01902 695064
Status Recruiting
Phase N/A
Start date September 22, 2016
Completion date December 2017

Clinical Trial Summary

The aim of this study is to evaluate the Sentimag/Sienna+ System (Sentimag®) in clinical routine practice. On the one hand this allows evaluation of the equivalence of the two techniques. On the other hand this ensures that patients do not experience any possible disadvantages by participating. The hypothesis behind this evaluation is that Sentimag is as efficient as conventional sentinel node mapping.

The programme will compare the Sentimag® with the conventional sentinel lymph node detection with radioactive tracer combined with blue dye (in centres using the combined technique) and thereby determine whether the new technique is equivalent to the standard technique for SLNB.

Clinical Trial Description

Sentinel lymph node biopsy (SLNB) is now the standard technique used in breast cancer patients with a clinically and radiologically negative axilla. SLNB for breast cancer was introduced in the 1990s3 and it significantly reduces the morbidity associated with axillary node dissection (ALND) including lymphedema, seroma, numbness, wound infection, reduced shoulder motility, and chronic pain.2 The gold standard for sentinel node detection is the 'combined technique'; using both blue dye and radioisotope injection. After allowing both radioisotope and blue dye to localize in the lymphatic system, the clinician uses a 'gamma probe' (a handheld scintillation counter) to locate the SLNs. The blue dye assists in localisation post-incision, with lymph nodes that are blue and/or radioactive are judged as 'SLNs' and excised. Some centres use either radioisotope or blue dye alone. Although detection rates are lower, they can still reach satisfying values in experienced centres.

The use of radioisotope exposes patients and healthcare workers to radiation, is heavily controlled by legislation (both on the specific training for operators and subsequent disposal of surgical waste), and provides poor pre-operative imaging. As a result, many centres have stopped undertaking routine pre-operative lymphoscintigraphy. There is thus a clinical need to develop new techniques for detecting sentinel nodes without these drawbacks.

Study Design

Related Conditions & MeSH terms

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