Trial Outcomes & Findings for "Twelve-week Study of the Safety and Efficacy of JZP-110 in the Treatment of Excessive Sleepiness in Narcolepsy" (NCT NCT02348593)

NCT ID: NCT02348593

Last Updated: 2019-07-23

Results Overview

Change in mean sleep latency time (in minutes) as determined from the first 4 trials of a 40-minute MWT from baseline to Week 12. MWT sleep latency ranges from 0 to 40 minutes, with higher scores indicating greater ability to stay awake; a positive change from baseline represents improvement in the sleep latency time. Mean sleep latency defined as the average of the first 4 MWT trials, if 3 or 4 of them are non-missing.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

239 participants

Primary outcome timeframe

Baseline to Week 12

Results posted on

2019-07-23

Participant Flow

239 subjects were randomized in a 1:1:1:1 ratio to receive placebo, 75 mg JZP-110, 150 mg JZP-110 or 300 mg JZP-110. 236 subjects received at least 1 dose of study medication and comprised the Safety Population; the remaining 3 subjects were randomized in error (did not receive study medication) and were excluded from the Safety Population.

Participant milestones

Participant milestones
Measure
75 mg of JZP-110
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Placebo
Placebo administered orally, QD, for the 12 week treatment phase.
Overall Study
STARTED
59
59
59
59
Overall Study
COMPLETED
49
51
43
52
Overall Study
NOT COMPLETED
10
8
16
7

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

"Twelve-week Study of the Safety and Efficacy of JZP-110 in the Treatment of Excessive Sleepiness in Narcolepsy"

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=59 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Placebo
n=59 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
Total
n=236 Participants
Total of all reporting groups
Age, Continuous
36.5 years
STANDARD_DEVIATION 12.78 • n=5 Participants
38.1 years
STANDARD_DEVIATION 13.00 • n=7 Participants
34.3 years
STANDARD_DEVIATION 11.51 • n=5 Participants
36.0 years
STANDARD_DEVIATION 15.17 • n=4 Participants
36.3 years
STANDARD_DEVIATION 12.47 • n=21 Participants
Sex: Female, Male
Female
37 Participants
n=5 Participants
42 Participants
n=7 Participants
40 Participants
n=5 Participants
35 Participants
n=4 Participants
154 Participants
n=21 Participants
Sex: Female, Male
Male
22 Participants
n=5 Participants
17 Participants
n=7 Participants
19 Participants
n=5 Participants
24 Participants
n=4 Participants
82 Participants
n=21 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
0 Participants
n=4 Participants
2 Participants
n=21 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
0 Participants
n=4 Participants
6 Participants
n=21 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
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
Race (NIH/OMB)
Black or African American
12 Participants
n=5 Participants
6 Participants
n=7 Participants
5 Participants
n=5 Participants
10 Participants
n=4 Participants
33 Participants
n=21 Participants
Race (NIH/OMB)
White
46 Participants
n=5 Participants
48 Participants
n=7 Participants
48 Participants
n=5 Participants
47 Participants
n=4 Participants
189 Participants
n=21 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
5 Participants
n=21 Participants
Race (NIH/OMB)
Unknown or Not Reported
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

PRIMARY outcome

Timeframe: Baseline to Week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Change in mean sleep latency time (in minutes) as determined from the first 4 trials of a 40-minute MWT from baseline to Week 12. MWT sleep latency ranges from 0 to 40 minutes, with higher scores indicating greater ability to stay awake; a positive change from baseline represents improvement in the sleep latency time. Mean sleep latency defined as the average of the first 4 MWT trials, if 3 or 4 of them are non-missing.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in Maintenance of Wakefulness Test (MWT) From Baseline to Week 12
2.12 minutes
Standard Error 1.289
4.74 minutes
Standard Error 1.335
9.77 minutes
Standard Error 1.327
12.27 minutes
Standard Error 1.389

PRIMARY outcome

Timeframe: Baseline to Week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Change in Epworth Sleepiness Scale (ESS) score from Baseline to Week 12. A negative change from baseline represents improvement in excessive sleepiness. The ESS is a self-administered questionnaire with 8 questions. Each activity is scored on a scale ranging from 0-3, with 0 = would never fall asleep, and 3 = high chance of falling asleep. The total score ranges from 0-24, with a higher number representing an increased propensity for sleepiness. An analysis of covariance (ANCOVA) was used for the analysis of ESS scores. The response variable was the change in ESS score from baseline.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in ESS Score From Baseline to Week 12
-1.6 points on a scale
Standard Error 0.65
-3.8 points on a scale
Standard Error 0.67
-5.4 points on a scale
Standard Error 0.66
-6.4 points on a scale
Standard Error 0.68

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Percentage of subjects reported as improved (minimally, much, or very much) on the PGIc at Week 12. PGIc was rated by subjects and measures the change in their condition since treatment starts on a 7-point scale ranging from 1= very much improved to 7= very much worse

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Subjects Reported Improved on the Patient Global Impression of Change (PGIc) at Week 12
39.7 percentage of subjects
67.8 percentage of subjects
78.2 percentage of subjects
84.7 percentage of subjects

SECONDARY outcome

Timeframe: Change from baseline for sleep latency in MWT during trial 1 at week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Time course of efficacy in MWT: Change in sleep latency (in minutes) on each of the 5 MWT trials at Week 12.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in Sleep Latency Time on MWT Trial 1 at Week 12
-0.55 minutes
Standard Error 4.658
3.27 minutes
Standard Error 1.725
9.87 minutes
Standard Error 1.713
9.91 minutes
Standard Error 1.841

SECONDARY outcome

Timeframe: Change from baseline for sleep latency in MWT during trial 2 at week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Time course of efficacy in MWT: Change in sleep latency (in minutes) on each of the 5 MWT trials at Week 12.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in Sleep Latency Time on MWT Trial 2 at Week 12
1.41 minutes
Standard Error 1.638
5.70 minutes
Standard Error 1.697
9.46 minutes
Standard Error 1.674
14.50 minutes
Standard Error 1.835

SECONDARY outcome

Timeframe: Change from baseline for sleep latency in MWT during trial 3 at week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Time course of efficacy in MWT: Change in sleep latency (in minutes) on each of the 5 MWT trials at Week 12.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in Sleep Latency Time on MWT Trial 3 at Week 12
3.79 minutes
Standard Error 1.799
6.35 minutes
Standard Error 1.908
11.31 minutes
Standard Error 1.859
13.99 minutes
Standard Error 1.996

SECONDARY outcome

Timeframe: Change from baseline for sleep latency in MWT during trial 4 at week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Time course of efficacy in MWT: Change in sleep latency (in minutes) on each of the 5 MWT trials at Week 12.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in Sleep Latency Time on MWT Trial 4 at Week 12
2.33 minutes
Standard Error 1.579
3.77 minutes
Standard Error 1.663
9.77 minutes
Standard Error 1.606
13.50 minutes
Standard Error 1.734

SECONDARY outcome

Timeframe: Change from baseline for sleep latency in MWT during trial 5 at week 12

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Time course of efficacy in MWT: Change in sleep latency (in minutes) on each of the 5 MWT trials at Week 12.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in Sleep Latency Time on MWT Trial 5 at Week 12
3.09 minutes
Standard Error 1.808
3.92 minutes
Standard Error 1.928
9.25 minutes
Standard Error 1.888
12.20 minutes
Standard Error 1.969

SECONDARY outcome

Timeframe: Baseline to Week 4

Population: Five subjects in the Safety Population were excluded from the mITT Population resulting in a total of 231 subjects.

Change in mean sleep latency time (in minutes) as determined from the first 4 trials of a 40-minute MWT from Baseline to Week 4.

Outcome measures

Outcome measures
Measure
Placebo
n=58 Participants
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 Participants
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=55 Participants
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 Participants
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Change in the Mean Sleep Latency Time as Determined From the First 4 Trials of a 40-Minute MWT From Baseline to Week 4
2.16 minutes
Standard Error 1.202
4.67 minutes
Standard Error 1.223
9.15 minutes
Standard Error 1.246
13.07 minutes
Standard Error 1.211

Adverse Events

Placebo

Serious events: 0 serious events
Other events: 17 other events
Deaths: 0 deaths

75 mg of JZP-110

Serious events: 0 serious events
Other events: 19 other events
Deaths: 0 deaths

150 mg JZP-110

Serious events: 1 serious events
Other events: 32 other events
Deaths: 0 deaths

300 mg of JZP-110

Serious events: 0 serious events
Other events: 36 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=59 participants at risk
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 participants at risk
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=59 participants at risk
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 participants at risk
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
General disorders
Non-cardiac chest pain
0.00%
0/59 • Through Week 14
0.00%
0/59 • Through Week 14
1.7%
1/59 • Through Week 14
0.00%
0/59 • Through Week 14
Psychiatric disorders
Anxiety
0.00%
0/59 • Through Week 14
0.00%
0/59 • Through Week 14
1.7%
1/59 • Through Week 14
0.00%
0/59 • Through Week 14

Other adverse events

Other adverse events
Measure
Placebo
n=59 participants at risk
Placebo administered orally, QD, for the 12 week treatment phase.
75 mg of JZP-110
n=59 participants at risk
75 mg JZP-110 administered orally, QD, for the 12-week treatment phase.
150 mg JZP-110
n=59 participants at risk
Subjects randomized to receive 150 mg JZP-110 initially received 75 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase and then received 150 mg JZP-110 starting on Day 4, administered orally, QD.
300 mg of JZP-110
n=59 participants at risk
Subjects randomized to receive 300 mg JZP-110 initially received 150 mg JZP-110 from Day 1 through Day 3 of the Treatment Phase, and received 300 mg JZP-110 starting on Day 4, administered orally, QD.
Investigations
Weight decreased
0.00%
0/59 • Through Week 14
1.7%
1/59 • Through Week 14
1.7%
1/59 • Through Week 14
5.1%
3/59 • Through Week 14
Investigations
Heart rate increased
0.00%
0/59 • Through Week 14
0.00%
0/59 • Through Week 14
0.00%
0/59 • Through Week 14
6.8%
4/59 • Through Week 14
Investigations
Weight increased
5.1%
3/59 • Through Week 14
3.4%
2/59 • Through Week 14
0.00%
0/59 • Through Week 14
1.7%
1/59 • Through Week 14
Nervous system disorders
Headache
5.1%
3/59 • Through Week 14
10.2%
6/59 • Through Week 14
23.7%
14/59 • Through Week 14
30.5%
18/59 • Through Week 14
Nervous system disorders
Dizziness
3.4%
2/59 • Through Week 14
3.4%
2/59 • Through Week 14
1.7%
1/59 • Through Week 14
5.1%
3/59 • Through Week 14
General disorders
Fatigue
0.00%
0/59 • Through Week 14
0.00%
0/59 • Through Week 14
3.4%
2/59 • Through Week 14
5.1%
3/59 • Through Week 14
Psychiatric disorders
Anxiety
1.7%
1/59 • Through Week 14
1.7%
1/59 • Through Week 14
5.1%
3/59 • Through Week 14
8.5%
5/59 • Through Week 14
Psychiatric disorders
Insomnia
0.00%
0/59 • Through Week 14
3.4%
2/59 • Through Week 14
0.00%
0/59 • Through Week 14
5.1%
3/59 • Through Week 14
Gastrointestinal disorders
Nausea
1.7%
1/59 • Through Week 14
5.1%
3/59 • Through Week 14
10.2%
6/59 • Through Week 14
10.2%
6/59 • Through Week 14
Gastrointestinal disorders
Dry mouth
3.4%
2/59 • Through Week 14
5.1%
3/59 • Through Week 14
6.8%
4/59 • Through Week 14
10.2%
6/59 • Through Week 14
Gastrointestinal disorders
Diarrhoea
1.7%
1/59 • Through Week 14
3.4%
2/59 • Through Week 14
5.1%
3/59 • Through Week 14
5.1%
3/59 • Through Week 14
Gastrointestinal disorders
Dyspepsia
0.00%
0/59 • Through Week 14
1.7%
1/59 • Through Week 14
3.4%
2/59 • Through Week 14
5.1%
3/59 • Through Week 14
Gastrointestinal disorders
Constipation
1.7%
1/59 • Through Week 14
5.1%
3/59 • Through Week 14
1.7%
1/59 • Through Week 14
0.00%
0/59 • Through Week 14
Metabolism and nutrition disorders
Decreased appetite
1.7%
1/59 • Through Week 14
8.5%
5/59 • Through Week 14
8.5%
5/59 • Through Week 14
15.3%
9/59 • Through Week 14
Infections and infestations
Nasopharyngitis
5.1%
3/59 • Through Week 14
8.5%
5/59 • Through Week 14
13.6%
8/59 • Through Week 14
5.1%
3/59 • Through Week 14
Infections and infestations
Upper respiratory tract infection
1.7%
1/59 • Through Week 14
1.7%
1/59 • Through Week 14
6.8%
4/59 • Through Week 14
0.00%
0/59 • Through Week 14
Infections and infestations
Influenza
5.1%
3/59 • Through Week 14
3.4%
2/59 • Through Week 14
1.7%
1/59 • Through Week 14
1.7%
1/59 • Through Week 14

Additional Information

Director, Disclosure & Transparency

Jazz Pharmaceuticals

Phone: 215-970-7145

Results disclosure agreements

  • Principal investigator is a sponsor employee The sponsor can review trial results communications prior to public release and can embargo such communications for a period of at least 60 days from the time submitted to sponsor for review. If requested by sponsor, the PI will withhold publication for up to an additional 30 days. Furthermore, the first publication of study results must be a joint publication of all study sites unless a joint manuscript has not been submitted for publication within 12 months of completion of the study.
  • Publication restrictions are in place

Restriction type: OTHER