Trial Outcomes & Findings for A 10-week Efficacy Study of NOE-105 in Childhood Onset Fluency Disorder (Orpheus) (NCT NCT05583955)
NCT ID: NCT05583955
Last Updated: 2026-02-20
Results Overview
MLGSSS refers to Maguire-Leal-Garibaldi Self-rated Stuttering Scale. The scale includes ten questions that are assessed on a 0 to 10 scale with 0 being no impact and 10 being highest impact. The total score ranges from 0 to 100 with the higher the score the worse the stuttering.
COMPLETED
PHASE2
75 participants
43 days
2026-02-20
Participant Flow
10 participants were not randomized due to withdrawal by patient (n=3), non-compliance with study drug (n=1) or physician decision (n=1), 3 were not eligible for randomization.
Participant milestones
| Measure |
Active
Escalating doses of NOE-105 capsules
NOE-105: Escalating dose levels of NOE-105 will be given and maximum tolerated dose will be maintained
|
Placebo
Escalating doses of matching placebo
Placebo: Escalating dose levels of matching Placebo will be given
|
|---|---|---|
|
Overall Study
STARTED
|
34
|
31
|
|
Overall Study
Full analysis set
|
33
|
29
|
|
Overall Study
COMPLETED
|
19
|
26
|
|
Overall Study
NOT COMPLETED
|
15
|
5
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
A 10-week Efficacy Study of NOE-105 in Childhood Onset Fluency Disorder (Orpheus)
Baseline characteristics by cohort
| Measure |
Active
n=34 Participants
Escalating doses of NOE-105 capsules
NOE-105: Escalating dose levels of NOE-105 will be given and maximum tolerated dose will be maintained
|
Placebo
n=31 Participants
Escalating doses of matching placebo
Placebo: Escalating dose levels of matching Placebo will be given
|
Total
n=65 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Continuous
|
31.1 years
STANDARD_DEVIATION 10.09 • n=14 Participants
|
34.3 years
STANDARD_DEVIATION 10.25 • n=14 Participants
|
32.6 years
STANDARD_DEVIATION 10.22 • n=29 Participants
|
|
Sex: Female, Male
Female
|
0 Participants
n=14 Participants
|
0 Participants
n=14 Participants
|
0 Participants
n=29 Participants
|
|
Sex: Female, Male
Male
|
34 Participants
n=14 Participants
|
31 Participants
n=14 Participants
|
65 Participants
n=29 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
0 Participants
n=14 Participants
|
0 Participants
n=14 Participants
|
0 Participants
n=29 Participants
|
|
Race (NIH/OMB)
Asian
|
5 Participants
n=14 Participants
|
1 Participants
n=14 Participants
|
6 Participants
n=29 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
0 Participants
n=14 Participants
|
1 Participants
n=14 Participants
|
1 Participants
n=29 Participants
|
|
Race (NIH/OMB)
Black or African American
|
10 Participants
n=14 Participants
|
9 Participants
n=14 Participants
|
19 Participants
n=29 Participants
|
|
Race (NIH/OMB)
White
|
17 Participants
n=14 Participants
|
15 Participants
n=14 Participants
|
32 Participants
n=29 Participants
|
|
Race (NIH/OMB)
More than one race
|
0 Participants
n=14 Participants
|
0 Participants
n=14 Participants
|
0 Participants
n=29 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
2 Participants
n=14 Participants
|
5 Participants
n=14 Participants
|
7 Participants
n=29 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
3 Participants
n=14 Participants
|
3 Participants
n=14 Participants
|
6 Participants
n=29 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
31 Participants
n=14 Participants
|
27 Participants
n=14 Participants
|
58 Participants
n=29 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=14 Participants
|
1 Participants
n=14 Participants
|
1 Participants
n=29 Participants
|
|
Maguire-Leal-Garibaldi Self-rated Stuttering Scale
|
32.1 score on a scale
STANDARD_DEVIATION 14.23 • n=14 Participants
|
33.3 score on a scale
STANDARD_DEVIATION 11.16 • n=14 Participants
|
32.7 score on a scale
STANDARD_DEVIATION 12.86 • n=29 Participants
|
PRIMARY outcome
Timeframe: 43 daysPopulation: The full analysis set was used to assess the outcome. The full analysis set includes patients randomized who had at least one dose of study treatment and post randomization MLGSSS assessed.
MLGSSS refers to Maguire-Leal-Garibaldi Self-rated Stuttering Scale. The scale includes ten questions that are assessed on a 0 to 10 scale with 0 being no impact and 10 being highest impact. The total score ranges from 0 to 100 with the higher the score the worse the stuttering.
Outcome measures
| Measure |
Active
n=33 Participants
Escalating doses of NOE-105 capsules
NOE-105: Escalating dose levels of NOE-105 will be given and maximum tolerated dose will be maintained
|
Placebo
n=29 Participants
Escalating doses of matching placebo
Placebo: Escalating dose levels of matching Placebo will be given
|
|---|---|---|
|
Change From Baseline to End of 6 Weeks in Total MLGSSS
|
-7.0 Score on a scale
Standard Deviation 13.32
|
-5.5 Score on a scale
Standard Deviation 6.72
|
SECONDARY outcome
Timeframe: Up to 71 daysThe Sheehan Disability Scale (SDS) is a brief, self-report tool that assesses disability or functional impairment in the domains of (1) Work/School life, (2) Social life, and (3) Family life/home responsibilities. Each is assessed on a 10 point scale with 0 being no impact, and 10 being highest impact. Each item is rated from 0 (not at all) to 10 (extremely) impairment. Each domain score is added to provide a total score from 0-30 total score with 0 (no impairment) and 30 is severe impairment. The change from the Baseline assessment have been provided.
Outcome measures
| Measure |
Active
n=33 Participants
Escalating doses of NOE-105 capsules
NOE-105: Escalating dose levels of NOE-105 will be given and maximum tolerated dose will be maintained
|
Placebo
n=29 Participants
Escalating doses of matching placebo
Placebo: Escalating dose levels of matching Placebo will be given
|
|---|---|---|
|
Change From Baseline in Sheehan Disability Scale
|
-0.6 score on a scale
Standard Deviation 8.23
|
-1.3 score on a scale
Standard Deviation 5.82
|
SECONDARY outcome
Timeframe: Up to 71 daysSSI-4 is a validated scale to evaluate speech fluency including frequency, duration, physical concomitants and the naturalness of the speech. The score ranges from 10 (mildest) to 46 (most severe). The results show the change from Baseline in the SSI-4
Outcome measures
| Measure |
Active
n=33 Participants
Escalating doses of NOE-105 capsules
NOE-105: Escalating dose levels of NOE-105 will be given and maximum tolerated dose will be maintained
|
Placebo
n=29 Participants
Escalating doses of matching placebo
Placebo: Escalating dose levels of matching Placebo will be given
|
|---|---|---|
|
Change From Baseline to End Point in Clinician-rated Stuttering Severity Instrument-4
|
-3.0 units on a scale
Standard Deviation 6.5
|
-2.7 units on a scale
Standard Deviation 4.78
|
POST_HOC outcome
Timeframe: Up to 71 daysMLGSSS refers to Maguire-Leal-Garibaldi Self-rated Stuttering Scale. The scale includes ten questions that are assessed on a 0 to 10 scale with 0 being no impact and 10 being highest impact. The total score ranges from 0 to 100 with the higher the score the worse the stuttering. Analysis of a subset of participant with a Baseline MLGSSS of \> 24, in other words this analysis excludes those with mild stuttering as measured by MLGSSS. See the description for the first outcome measure for a description of the scale. The results show the change from baseline.
Outcome measures
| Measure |
Active
n=21 Participants
Escalating doses of NOE-105 capsules
NOE-105: Escalating dose levels of NOE-105 will be given and maximum tolerated dose will be maintained
|
Placebo
n=24 Participants
Escalating doses of matching placebo
Placebo: Escalating dose levels of matching Placebo will be given
|
|---|---|---|
|
Change in MLGSSS From Baseline in More Severe Population
|
-14.8 score on a scale
Standard Deviation 12.54
|
-9.1 score on a scale
Standard Deviation 8.81
|
Adverse Events
Active
Placebo
Serious adverse events
Adverse event data not reported
Other adverse events
| Measure |
Active
n=34 participants at risk
Escalating doses of NOE-105 capsules
NOE-105: Escalating dose levels of NOE-105 will be given and maximum tolerated dose will be maintained. The adverse event rates could not be allocated per dose because the dose titration occurred over a period of 4 weeks or util maximum tolerated dose reached. Down titration was also allowed
|
Placebo
n=31 participants at risk
Escalating doses of matching placebo
Placebo: Escalating dose levels of matching Placebo will be given
|
|---|---|---|
|
Nervous system disorders
Somnolence
|
8.8%
3/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Tremor
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Bradykinesia
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Dizziness
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Akathisia
|
8.8%
3/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Psychiatric disorders
Restlessness
|
8.8%
3/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Psychiatric disorders
Anxiety
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Psychiatric disorders
Apathy
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Psychiatric disorders
Insomnia
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Infections and infestations
Nasopharyngitis
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
12.9%
4/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Infections and infestations
Upper respiratory tract infection
|
2.9%
1/34 • Adverse events were collected for the duration of the trial (71 days)
|
6.5%
2/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Musculoskeletal and connective tissue disorders
Muscle tightness
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Musculoskeletal and connective tissue disorders
Muscle twitching
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
6.5%
2/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Gastrointestinal disorders
Vomiting
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Gastrointestinal disorders
Nausea
|
5.9%
2/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Cardiac disorders
Left ventricular hypertrophy
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
General disorders
Non-cardiac chest pain
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Infections and infestations
Eye infection and bacterial
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Infections and infestations
Folliculitis
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Infections and infestations
Pertussis
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Infections and infestations
Sinusitis
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Investigations
Blood cholesterol increased
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Investigations
Blood glucose increased
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Headache
|
2.9%
1/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Migraine
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Psychiatric disorders
Dysphemia
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Psychiatric disorders
Initial insomnia
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Respiratory, thoracic and mediastinal disorders
Throat tightness
|
0.00%
0/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Sedation
|
23.5%
8/34 • Adverse events were collected for the duration of the trial (71 days)
|
3.2%
1/31 • Adverse events were collected for the duration of the trial (71 days)
|
|
Nervous system disorders
Dystonia
|
8.8%
3/34 • Adverse events were collected for the duration of the trial (71 days)
|
0.00%
0/31 • Adverse events were collected for the duration of the trial (71 days)
|
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place
Restriction type: LTE60