Are Patients Suffering From DSPS Show Compromising in Everyday Functions and Abilities Before Handling the Disorder?

Are Patients Suffering From DSPS Show Compromising in Everyday Functions and Abilities (Attention and Concentration, Mood and Fatigue) Before Handling the Disorder? And Whether the Treatment Fixes the Disorder?

Status

UNKNOWN

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02962037

Enrollment

Registered

2016-11-11

Start date

2016-11-30

Completion date

2017-11-30

Last updated

2016-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Delayed Sleep Phase Syndrome

Brief summary

The purpose of this study is to determine whether the known treatment for DSPS also improve the cognitive ability and mood of the patients.

Detailed description

Every participant will take a few test and tasks that are going to test his cognitive ability and mood before treatment in 08:00 and 20:00, and again the same tests at the same hours after the treatment.

Interventions

OTHERMelatonin and light therapy

Study design

Allocation

NON_RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

20 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

* diagnosed with DSPS

Exclusion criteria

* attention deficit hyperactivity disorder - diagnosed, affective disorder- diagnosed

Design outcomes

Primary

Measure	Time frame	Description
Sleep patterns	1 week	Sleep actigraph
Melatonin secretion	12 hours	Melatonin -Sulfate Urine
Brief Symptom Inventory	1 day	BSI Questionnaire- assess the subject's emotional state
Epworth Sleepiness Scale	1 day	ESS Questionnaire- measure daytime sleepiness
Karolinska Sleepiness Scale	1 day	KSS Questionnaire- self-reported, subjective assessment of the subject's level of drowsiness
Continuous Performance Test 3	1 day	Task-oriented computerized assessment of attention-related problems

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026