Usability of an ultra-thin endoscopy for diagnosing pharyngeal and esophageal cancer

Usability of an ultra-thin endoscopy for diagnosing superficial squamous neoplasms in the pharynx and esophagus : a prospective randomized clinical trial - Diagnosis of superficial squamous neoplasms in the pharynx and esophagus using an ultra-thin endoscope

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000051910

Enrollment

148

Registered

2023-08-15

Start date

2023-08-15

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

superficial squamous neoplasms in the pharynx and esophagus

Interventions

An ultra-thin endoscopy will be used for the first examination A magnified endoscopy will be used for the first examination

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. The patients with present or past history of superficial pharyngeal or esophageal neoplasia 2. The patients who agree with the informed consent

Exclusion criteria

Exclusion criteria: 1. A Patient aged < 20 2. The patients who have history of chemotherapy in a year 3. The patients whose biopsy is prohibited 4. The patients who have allergy for Lugol 5.The patients who are evaluated inappropriate for the research

Design outcomes

Primary

Measure	Time frame
A sensitivity of superficial pharyngeal or esophageal cancer using an ultra-thin endoscopy and magnified endoscopy	—

Secondary

Measure	Time frame
1. Diagnostic performance of an ultra-thin endoscopy and magnified endoscopy for superficial pharyngeal or esophageal cancer 2. Characteristics of undetectable superficial pharyngeal or esophageal cancer using ultra-thin endoscopy	—

Countries

Japan

Contacts

Public ContactAkira Dobashi

The Jikei University School of Medicine Department of Endoscopy

ad99061@jikei.ac.jp0334331111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026