Gross Examinations Versus Frozen Section for Assessment of Surgical

Status Recruiting

Clinical Trial Summary

Surgical margin is a significant prognostic factor in oral cavity squamous cell carcinoma (OCSCC)[1,2,3]. Intra-operative frozen section (FS) has been routinely used by the surgeons to achieve adequate surgical margins. However published literature has failed to show a conclusive benefit of FS in improving oncological outcomes(4-7). The overall identification rate of the inadequate margins by FS is variable with figures in the literature ranging from25-34%.(8-10) Revision of margins based on FS is widely practiced in centers where facility for FS is available. However this has not shown to significantly improve local control when compared to cases in which FS was not utilized , in a comparative study done at Tata memorial Hospital(TMH) (5) More-over FS is a costly procedure, and sparsely available in resource- poor countries. In a recently conducted retrospective study of 1237 patients conducted at TMH, the cost benefit ratio of FS for assessment of margin is as low as 12:1(11). In another prospective study performed at the same center , investigators found that gross examination (GE) of margins by the surgeons was as effective as FS, and achievement of gross 7mm margin all around the tumor obviated the need for FS (12). In a recent meta-analysis of 8 studies that looked at the utility of frozen section and had uniformity in frozen section analysis and definition of close margins, they concluded that revision of margins based on FS does not improve oncological outcomes and further prospective studies are needed to explore this contentious issue (13). With this background, a prospective RCT is planned to explore if gross examination by surgeon and subsequent revision of margin (if necessary) is an equally effective alternative to Frozen section based revision in a randomized controlled trial.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04809324
Study type	Interventional
Source	Tata Memorial Centre
Contact	Pankaj Chaturvedi, MS
Phone	+91 02224177189
Email	chaturvedi.pankaj@gmail.com
Status	Recruiting
Phase	N/A
Start date	November 15, 2021
Completion date	June 2028

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Gross Examinations Versus Frozen Section for Assessment of Surgical Margins in Oral Cancers

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms