# Clinical Study Evaluating the Proper Surgical Safety Margin for Early Stage Oral Tongue Cancers

> **NCT04738786** · NA · TERMINATED · sponsor: **Samsung Medical Center** · enrollment: 125 (actual)

## Conditions studied

- Tongue Cancer
- Tongue Cancer TNM Staging Primary Tumor (T) T1
- Tongue Cancer TNM Staging Primary Tumor (T) T2
- Surgery
- Resection Margin
- Squamous Cell Carcinoma

## Interventions

- **PROCEDURE:** 1.5 cm surgical safety margin for cT1-2N0 oral tongue cancers
- **PROCEDURE:** 1.0 cm surgical safety margin for cT1-2N0 oral tongue cancers

## Key facts

- **NCT ID:** NCT04738786
- **Lead sponsor:** Samsung Medical Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2021-01-18
- **Primary completion:** 2025-01-31
- **Final completion:** 2025-01-31
- **Target enrollment:** 125 (ACTUAL)
- **Why stopped:** Due to Korean medical crisis, Resident strike, Patient referral (tongue cancer patients) to tertiary center has been in hold. Patient recruitment was seriously affected, and decreased.
- **Last updated:** 2025-05-18

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04738786

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04738786, "Clinical Study Evaluating the Proper Surgical Safety Margin for Early Stage Oral Tongue Cancers". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04738786. Licensed CC0.

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