CompletedPhase 2/3

Treatment for Adductor Spasmodic Dysphonia by Type 2 Thyroplasty Using Titanium Bridges

Japan20 participantsStarted 2015-07-27

Plain-language summary

For adductor spasmodic dysphonia, there is a need for establishing a new therapy under the present circumstance where no standard therapy has been established yet and existing therapies fail to provide permanent effect. Evaluation of the efficacy of type 2 thyroplasty using titanium bridges will expand the therapeutic options available for adductor spasmodic dysphonia and establishment of a standard therapy.

Who can participate

Age range

18 Years – 80 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Diagnosis of adductor spasmodic dysphonia by a board certified otorhinolaryngologist certified by the Oto-Rhino-Laryngological Society of Japan, Inc.
. At least 1 year experience of subjective or objective labored speech production, or pauses on certain sounds, due to adductor spasmodic dysphonia
. A total score of 20 or more on the Voice Handicap Index-10 (VHI-10)
. Non-responders to voice therapy performed before informed consent
. 18 through 80 years of age inclusive at the time of informed consent
. Written informed consent to participate in this study, provided by patients or their legally acceptable representatives

Exclusion criteria

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in VHI-10 scores assessed by Change from baseline in VHI-10 scores at 13 weeks after surgery

Timeframe: 13 weeks after surgery

Trial details

NCT IDNCT02528006

SponsorKumamoto University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2017-03-29

View on ClinicalTrials.gov More Adductor Spasmodic Dysphonia trials