New injection shows promise for reducing excessive drooling
NCT ID NCT01994109
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This Phase 3 study tested whether injections of MYOBLOC (a botulinum toxin type B) into the salivary glands can safely reduce troublesome drooling in adults. 187 participants received either MYOBLOC or a placebo. The main goals were to measure changes in saliva flow and overall improvement at 4 weeks. Results showed that MYOBLOC effectively decreased saliva production and improved symptoms compared to placebo.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- MYOBLOC (rimabotulinumtoxinB, botulinum toxin type B)
- What this could lead to
- If it works, this could provide a safe and effective treatment option for adults with troublesome drooling due to various medical conditions.
- What could go wrong
- This is a completed Phase 3 trial, so results are more reliable, but individual responses may vary and there are risks like dry mouth or injection site reactions.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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187 people
The number who actually took part.
- Start date
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Nov 2013
- Finished
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Jan 2017
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Seeking treatment for troublesome sialorrhea for at least 3 months that is occurring secondary to any disorder or related to any cause * Investigator sites will review entire list of inclusion criteria with potential subjects Exclusion Criteria: * Any known prior exposure to botulinum toxin type B, or known adverse reaction or sensitivity to botulinum toxin type A, or known sensitivity to any of the MYOBLOC solution components. * Prior botulinum toxin treatment to the salivary glands at any time * Investigator sites will review entire list of exclusion criteria with potential subjects
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Study site
Loma Linda, California, 92354, United States
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Study site
Los Angeles, California, 90033, United States
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Study site
National City, California, 91950, United States
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Study site
Aurora, Colorado, 80045, United States
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Study site
Washington D.C., District of Columbia, 20007, United States
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Study site
Boca Raton, Florida, 33486, United States
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Study site
Port Charlotte, Florida, 33980, United States
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Study site
Carmel, Indiana, 46032, United States
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Study site
Baltimore, Maryland, 21287, United States
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Study site
Elkridge, Maryland, 21075, United States
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Study site
Detroit, Michigan, 48334, United States
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Study site
St Louis, Missouri, 63110, United States
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Study site
Edison, New Jersey, 08818, United States
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Study site
Albany, New York, 12208, United States
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Study site
New York, New York, 10003, United States
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Study site
Cincinnati, Ohio, 45219, United States
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Study site
Tulsa, Oklahoma, 74136, United States
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Study site
Port Royal, South Carolina, 29935, United States
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Study site
Cordova, Tennessee, 38018, United States
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Study site
Houston, Texas, 77030, United States
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Study site
San Antonio, Texas, 78229, United States
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Study site
Salt Lake City, Utah, 84132, United States
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Study site
Kirkland, Washington, 98034, United States
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Study site
Tacoma, Washington, 98409, United States
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Study site
Irkutsk, Irkutsk Oblast, 664079, Russia
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Study site
Vsevolozhsk, Leningradskaya Oblast', 188643, Russia
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Study site
Saint Petersburg, Petrodvorets, 198510, Russia
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Study site
Krasnoyarsk, 660037, Russia
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Study site
Dnipropetrovsk, 49027, Ukraine
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Study site
Ivano-Frankivsk, 76008, Ukraine
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Study site
Kharkiv, 61068, Ukraine
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Study site
Lviv, 79010, Ukraine
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Study site
Rivne, 33010, Ukraine
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Study site
Uzhhorod, 88018, Ukraine
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