Trial Outcomes & Findings for BEN-2001 in Parkinson Disease Patients With Excessive Daytime Sleepiness (NCT NCT03194217)

NCT ID: NCT03194217

Last Updated: 2025-03-10

Results Overview

Mean absolute change of Bavisant treatment groups in the Epworth Sleepiness Scale (ESS) from baseline to the end of the 6-week treatment period. The ESS score (sum of 8 item scores) ranges from 0 to 24 with higher score corresponding to higher average sleep propensity in daily life (higher daytime sleepiness). Eligibility determined based on ESS score of 13 and above.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

244 participants

Primary outcome timeframe

6 weeks

Results posted on

2025-03-10

Participant Flow

Participant milestones

Participant milestones
Measure
Placebo
Placebo comparator Placebo: Placebo
BEN-2001, 0.5mg
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 1.0mg
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 3.0mg
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
Overall Study
STARTED
60
60
60
64
Overall Study
COMPLETED
60
57
56
60
Overall Study
NOT COMPLETED
0
3
4
4

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
Placebo comparator Placebo: Placebo
BEN-2001, 0.5mg
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 1.0mg
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 3.0mg
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
Overall Study
Adverse Event
0
2
3
3
Overall Study
Failure to meet randomisation criteria
0
0
0
1
Overall Study
Other
0
1
1
0

Baseline Characteristics

BEN-2001 in Parkinson Disease Patients With Excessive Daytime Sleepiness

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=60 Participants
Placebo comparator Placebo: Placebo
BEN-2001, 0.5mg
n=60 Participants
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 1.0mg
n=60 Participants
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 3.0mg
n=64 Participants
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
Total
n=244 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Categorical
Between 18 and 65 years
18 Participants
n=5 Participants
21 Participants
n=7 Participants
18 Participants
n=5 Participants
27 Participants
n=4 Participants
84 Participants
n=21 Participants
Age, Categorical
>=65 years
42 Participants
n=5 Participants
39 Participants
n=7 Participants
42 Participants
n=5 Participants
37 Participants
n=4 Participants
160 Participants
n=21 Participants
Sex: Female, Male
Female
21 Participants
n=5 Participants
23 Participants
n=7 Participants
17 Participants
n=5 Participants
20 Participants
n=4 Participants
81 Participants
n=21 Participants
Sex: Female, Male
Male
39 Participants
n=5 Participants
37 Participants
n=7 Participants
43 Participants
n=5 Participants
44 Participants
n=4 Participants
163 Participants
n=21 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
2 Participants
n=21 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
2 Participants
n=21 Participants
Race (NIH/OMB)
White
59 Participants
n=5 Participants
57 Participants
n=7 Participants
59 Participants
n=5 Participants
64 Participants
n=4 Participants
239 Participants
n=21 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
0 Participants
n=4 Participants
1 Participants
n=21 Participants
Region of Enrollment
United States
13 participants
n=5 Participants
12 participants
n=7 Participants
11 participants
n=5 Participants
11 participants
n=4 Participants
47 participants
n=21 Participants
Region of Enrollment
Europe
47 participants
n=5 Participants
48 participants
n=7 Participants
49 participants
n=5 Participants
53 participants
n=4 Participants
197 participants
n=21 Participants

PRIMARY outcome

Timeframe: 6 weeks

Population: ITT

Mean absolute change of Bavisant treatment groups in the Epworth Sleepiness Scale (ESS) from baseline to the end of the 6-week treatment period. The ESS score (sum of 8 item scores) ranges from 0 to 24 with higher score corresponding to higher average sleep propensity in daily life (higher daytime sleepiness). Eligibility determined based on ESS score of 13 and above.

Outcome measures

Outcome measures
Measure
Placebo
n=60 Participants
Placebo comparator Placebo: Placebo
BEN-2001, 0.5mg
n=60 Participants
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 1.0mg
n=60 Participants
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 3.0mg
n=64 Participants
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
Measurement of Sleepiness Using the Epworth Sleepiness Scale (ESS) at Baseline and Post Dose.
-4.34 units on a scale
Standard Error 0.5
-4.64 units on a scale
Standard Error 0.51
-3.46 units on a scale
Standard Error 0.51
-4.73 units on a scale
Standard Error 0.5

Adverse Events

Placebo

Serious events: 1 serious events
Other events: 11 other events
Deaths: 0 deaths

BEN-2001, 0.5mg

Serious events: 0 serious events
Other events: 16 other events
Deaths: 0 deaths

BEN-2001, 1.0mg

Serious events: 0 serious events
Other events: 27 other events
Deaths: 0 deaths

BEN-2001, 3.0mg

Serious events: 2 serious events
Other events: 26 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=60 participants at risk
Placebo comparator Placebo: Placebo
BEN-2001, 0.5mg
n=60 participants at risk
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 1.0mg
n=60 participants at risk
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 3.0mg
n=64 participants at risk
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
Surgical and medical procedures
cholecystectomy
1.7%
1/60 • Number of events 1 • 70 days
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
0.00%
0/64 • 70 days
Gastrointestinal disorders
Constipation
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
1.6%
1/64 • Number of events 1 • 70 days
Musculoskeletal and connective tissue disorders
Muscular weakness
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
1.6%
1/64 • Number of events 1 • 70 days

Other adverse events

Other adverse events
Measure
Placebo
n=60 participants at risk
Placebo comparator Placebo: Placebo
BEN-2001, 0.5mg
n=60 participants at risk
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 1.0mg
n=60 participants at risk
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
BEN-2001, 3.0mg
n=64 participants at risk
Experimental treatment BEN-2001: Bavisant dihydrochloride monohydrate for oral use
Infections and infestations
Nasopharygitis
5.0%
3/60 • 70 days
3.3%
2/60 • 70 days
1.7%
1/60 • 70 days
1.6%
1/64 • 70 days
Infections and infestations
Influenza
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
3.3%
2/60 • 70 days
0.00%
0/64 • 70 days
Psychiatric disorders
Initial Insomnia
3.3%
2/60 • 70 days
5.0%
3/60 • 70 days
1.7%
1/60 • 70 days
4.7%
3/64 • 70 days
Psychiatric disorders
Insomnia
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
4.7%
3/64 • 70 days
Psychiatric disorders
Middle Insomnia
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
3.3%
2/60 • 70 days
4.7%
3/64 • 70 days
Psychiatric disorders
Nightmare
0.00%
0/60 • 70 days
1.7%
1/60 • 70 days
0.00%
0/60 • 70 days
3.1%
2/64 • 70 days
Nervous system disorders
Head ache
0.00%
0/60 • 70 days
1.7%
1/60 • 70 days
3.3%
2/60 • 70 days
1.6%
1/64 • 70 days
Nervous system disorders
Tremor
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
3.1%
2/64 • 70 days
Nervous system disorders
Somnolence
1.7%
1/60 • 70 days
0.00%
0/60 • 70 days
1.7%
1/60 • 70 days
3.1%
2/64 • 70 days
Eye disorders
Cataract Nuclear
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
3.3%
2/60 • 70 days
0.00%
0/64 • 70 days
Gastrointestinal disorders
Diarrhoea
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
3.3%
2/60 • 70 days
0.00%
0/64 • 70 days
Gastrointestinal disorders
Constipation
0.00%
0/60 • 70 days
0.00%
0/60 • 70 days
1.7%
1/60 • 70 days
3.1%
2/64 • 70 days
Gastrointestinal disorders
Abdominal Pain Upper
0.00%
0/60 • 70 days
3.3%
2/60 • 70 days
0.00%
0/60 • 70 days
0.00%
0/64 • 70 days
Gastrointestinal disorders
Nausea
1.7%
1/60 • 70 days
3.3%
2/60 • 70 days
6.7%
4/60 • 70 days
4.7%
3/64 • 70 days
Gastrointestinal disorders
Dry Mouth
0.00%
0/60 • 70 days
1.7%
1/60 • 70 days
3.3%
2/60 • 70 days
0.00%
0/64 • 70 days
Skin and subcutaneous tissue disorders
Hyperhydrosis
3.3%
2/60 • 70 days
1.7%
1/60 • 70 days
1.7%
1/60 • 70 days
1.6%
1/64 • 70 days
Musculoskeletal and connective tissue disorders
Back pain
1.7%
1/60 • 70 days
1.7%
1/60 • 70 days
1.7%
1/60 • 70 days
3.1%
2/64 • 70 days
General disorders
Fatigue
0.00%
0/60 • 70 days
1.7%
1/60 • 70 days
3.3%
2/60 • 70 days
1.6%
1/64 • 70 days
Investigations
Triglycerous increase
1.7%
1/60 • 70 days
1.7%
1/60 • 70 days
5.0%
3/60 • 70 days
0.00%
0/64 • 70 days

Additional Information

Administrator

BenevolentAI

Phone: +44 20 3781 9360

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: LTE60