A Study of TAK-360 in Adults With Narcolepsy Type 1 (Narcolepsy With Cataplexy)
ConditionNarcolepsy Type 1
Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18-70
SponsorTakeda
About this trial
Narcolepsy is a sleep disorder that disrupts a person's regular sleep-wake cycle. It causes extreme sleepiness during the day (called excessive daytime sleepiness \[EDS\]), where a person may fall asleep without warning. Narcolepsy Type 1 (NT1) is a form of the condition in which people also have sudden, unexpected muscle weakness while staying conscious (called cataplexy).
The main aim of this study is to learn how safe TAK-360 is and how well adults with NT1 tolerate it. Adults who can participate in the study will have to stop taking their existing medicines for NT1 before study treatment starts. Participants may be randomly (by chance, like drawing names from a hat) assigned to get either TAK-360 or placebo during the treatment period. The placebo looks just like TAK-360 but does not have any medicine in it. After the treatment period, participants can be monitored for another 2 weeks. Participants can restart their usual NT1 treatment after study treatment ends.
The participants will have to visit the clinic multiple times during this study.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
The participant has a body mass index within the range 18 to 40 kilograms per meter square (kg/m²) (inclusive).
The participant has an International Classification of Sleep Disorders, Third Edition (ICSD-3) or ICSD-3 Text Revision diagnosis of NT1.
Disqualifiers
The participant has a current medical disorder, other than narcolepsy with cataplexy, associated with excessive daytime sleepiness.
The participant: (a) has a history of myocardial infarction; (b) has a history of clinically significant thyroid disease, coronary artery disease, cardiac rhythm abnormality or heart failure.
The participant has a clinically significant history of head injury or head trauma.
The participant has a history of epilepsy, seizure, or convulsion (except for a single febrile seizure in childhood).
Trial design
Design model
Parallel
Treatments tested in this trial
TAK-360
DrugTAK-360 tablet
Placebo
DrugTAK-360 matching placebo tablet
Treatment groups
92 Participants
are divided into 5 treatment groupsGroup A: Part A: TAK-360Experimental treatment 1 intervention
Group B: Part A: PlaceboPlacebo comparator 1 intervention
Group C: Part B: TAK-360Experimental treatment 1 intervention
Group D: Part B: PlaceboPlacebo comparator 1 intervention
Group E: Part CExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Parts A, B and C: Number of Participants With at Least One Treatment-emergent Adverse Events (TEAEs)
An adverse event (AE) is any untoward medical occurrence in a clinical trial participant, temporally associated with the use of the trial intervention, whether or not the occurrence is considered related to the trial intervention. A TEAE is defined as any event emerging or manifesting at or after the initiation of treatment with a study intervention or medicinal product or any existing event that worsens in either intensity or frequency following exposure to the study intervention or medicinal product.
Time frame
Up to approximately 28 weeksSecondary outcomes
1
Parts A and B: Change from Baseline in Mean Sleep Latency From the Maintenance of Wakefulness Test (MWT) at Week 6
The MWT evaluates a person's ability to remain awake under soporific conditions for a defined period of time. Because there is no biological measure of wakefulness, wakefulness is measured indirectly by the inability or delayed tendency to fall asleep.
Time frame
Baseline, Week 62
Parts A and B: Change from Baseline in Epworth Sleepiness Scale (ESS) Total Score at Week 6
The ESS provides individuals with 8 different situations of daily life and asks them how likely they are to fall asleep in those situations (scored 0 to 3) and to try to imagine their likelihood of dozing even if they have not actually been in the identical situation; the scores are summed to give an overall score of 0 to 24. Higher scores indicate stronger subjective daytime sleepiness, and scores below 10 are considered to be within the reference range.
Time frame
Baseline, Week 63
Parts A and B: Weekly Cataplexy Rate (WCR) at Week 6
Time frame
Week 6 Source ClinicalTrials.gov