New stuttering drug shows promise in early trial
NCT ID NCT05583955
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested a drug called NOE-105 in 75 adult men who have stuttered since childhood. The goal was to see if it could improve speech fluency without the side effects of older treatments. Participants took the drug or a placebo for 10 weeks, and researchers measured changes in stuttering severity and daily functioning.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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75 people
The number who actually took part.
- Started
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Jul 2022
- Finished
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Nov 2023
- 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 55 years
- Sex
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Male participants only
- 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: 1. Patients must be 18 to 55 years of age inclusive, at the time of signing the informed consent. 2. Patients who satisfy DSM-5 criteria for childhood onset fluency disorder and are suitable for pharmacotherapy. 3. Have a history of stuttering for more than or equal to ≥ 2 years with onset consistent to developmental in nature before age 8 years. 4. Patient reported global stuttering experience as "moderate" at screening and baseline. 5. Patients must discontinue all medications used to treat stuttering for at least 14 days prior to receiving study treatment. With the exception of antipsychotic therapies (see exclusion criterion #11), other psychotropic drugs will be allowed provided they have been stable for at least 14 days prior to receiving study treatment and are expected to remain stable for the duration of the study. 6. BMI within the range 19 to 35 kg/m2 (inclusive). 7. Male Contraceptive use should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. Male patients must use a condom during the treatment period and until the end of relevant systemic exposure in the male participant, plus a further 90-day period. In addition, for a non-pregnant WOCBP partner. 8. Capable of giving signed informed consent 9. Able to read and write in English Exclusion Criteria: 1. Stuttering is related to a known neurological cause eg, stroke, etc. 2. Low IQ in the opinion of the investigator. 3. Patients with uncontrolled seizure disorders. 4. A history of severe traumatic brain injury or stroke. 5. Patients who are, in the investigator's opinion, at imminent risk of suicide. 6. Known to have tested positive for human immunodeficiency virus. 7. Known DSM-5 diagnosis of substance abuse or dependence. 8. Unstable medical illness or clinically significant abnormalities on screening tests/exams. 9. Any unstable medical conditions or are currently ill (eg, congenital heart disease, arrhythmia or cancer), which, in the investigator's judgment, will put them at a risk of major adverse event during this trial, are expected to progress during the study, or will interfere with safety and efficacy assessments. 10. Initiation of new behavioral therapies for stuttering within 10 weeks prior to baseline. 11. Use of antipsychotic drug therapy within 14 days prior to receiving treatment until the EoT visit. 12. Participation in another clinical study with an IP administered in the last 30 days. 13. Participants with a known hypersensitivity to NOE-105 or any of the excipients of the product. 14. Patient must not intend to use cannabinoids, cocaine, or nonprescribed opiates. 15. Involvement in the planning and/or conduct of the study (applies to both Noema staff and/or staff at the study site). 16. Judgment by the investigator that the patient should not participate in the study if the patient is unlikely to comply with study procedures, restrictions, and requirements. 17. Previous randomization in the present study.
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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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Noema Investigator site
Bellflower, California, 90706, United States
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Noema Investigator site
Jacksonville, Florida, 32256, United States
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Noema Investigator site
Orlando, Florida, 32801, United States
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Noema Investigator site
Overland Park, Kansas, 66210, United States
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Noema Investigator site
Berlin, New Jersey, 08009, United States
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Noema Investigator site
Memphis, Tennessee, 38119, United States
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Noema Investigator site
Brookvale, New South Wales, 2100, Australia
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Noema Investigator site
Miranda, New South Wales, 2228, Australia
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Noema Investigator site
Sydney, New South Wales, 2109, Australia