To validate the efficiency of patient-centered noninvasive conservative treatment of vocal cord polyp and/or vocal nodule achieved by vocal hygiene education.

To validate the efficiency of patient-centered noninvasive conservative treatment of vocal cord polyp and/or vocal nodule achieved by vocal hygiene education. - NHO - Reaserach for Vocal Hygiene Education

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000016701

Enrollment

200

Registered

2015-03-06

Start date

2015-02-06

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

Vocalcord polyp, vocal nodule

Interventions

In consideration of the vocal hygiene educational program, the speech therapist or main physician should advise the patient in accordance with their lifestyle. Decide the indication of the surgery af

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients who have been diagnosed with vocal cord polyp or vocal nodule through the use of fiberscopy/ stroboscopy. 2. Patients who have been indicated for phonosurgery due to hoarseness. 3. Patients able to wait at least 2 months before surgery. 4. Male and Female over 20 years of age. 5. Patients who have agreed to join the resaerch and willingly signed a medical ethics application form.

Exclusion criteria

Exclusion criteria: 1. Laryngeal examination (fiberscopic and/or stroboscopic study, etc.) suggests laryngeal cancer. 2. Laryngeal examination (fiberscopic and/or stroboscopic study, etc.) suggests laryngeal granuloma. 3. Laryngeal examination (fiberscopic and/or stroboscopic study, etc.) suggests tuberculosis. 4. Laryngeal examination (fiberscopic and/or stroboscopic study, etc.) suggests collagen disease. 5. Laryngeal examination (fiberscopic and/or stroboscopic study, etc.) suggests laryngeal cyst. 6. Laryngeal examination (fiberscopic and/or stroboscopic study, etc.) suggests Reinke's edema. 7. Patients who need surgery within 2 months. 8. Patients denied participation by their physician.

Design outcomes

Primary

Measure	Time frame
Examining the amount of regression seen in a patient's condition (vocal cord polyp/vocal nodule), after 2 months of outpatient service.	—

Secondary

Measure	Time frame
Change in condition (the presence or absence of glottal/ membrane fluctuation), objective voice evaluation (GRBAS, phonetic function test, MPT), change in patients subjective satisfaction (VHI), adverse event	—

Countries

Japan

Contacts

Public ContactKoichi Tsunoda

National Hospital Organization Tokyo Medical Center Department of Artificial Organs and Medical Creations

onseishitsumon@kankakuki.go.jp03-3411-0111

Outcome results

None listed

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