Actively Recruiting
Epidemiology of Narcolepsy Type 1 and Type 2 in Spain
Led by Takeda · Updated on 2026-05-15
100
Participants Needed
10
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are conducting an observational study to determine how many people in Spain have been diagnosed with narcolepsy type 1 and type 2, which are rare sleep disorders causing excessive daytime sleepiness. The study aims to understand the prevalence and incidence of these conditions by reviewing medical records and tracking new diagnoses over time. The study is sponsored by Takeda and includes participants of all ages and backgrounds. The study involves two groups: a core group and a supplementary group. The core group includes people with narcolepsy type 1 or 2 who have been treated or monitored in about 10 public hospitals in Spain and are alive during 2023 or 2024, with retrospective data going back up to 10 years. The supplementary group includes participants from Spain who complete an online survey about their condition in collaboration with a patient advocacy group. No treatments or interventions are given as part of this research. Participants will have their medical records reviewed to collect data on diagnosis, symptom onset, and follow-up visits. The study will measure how common narcolepsy is in different age groups, genders, and populations, as well as track changes in diagnosis delays and prevalence over the past decade. The supplementary group will provide additional insights through survey responses. The total study period includes data collection over several years, with key outcomes assessed within one to two years for prevalence and incidence.
CONDITIONS
Brief Title
Epidemiology of Narcolepsy Type 1 and Type 2 in Spain
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Participants with Narcolepsy Type 1 or Type 2 diagnosed according to International Classification of Sleep Disorders criteria
- Participants alive at any time during 2023 or 2024
- Participants of any age, ethnicity, and nationality
- Participants treated or followed in the study hospitals and residing in the hospitals' reference areas
- Participants with confirmed Narcolepsy Type 1 or Type 2 diagnosis by a specialist
- Participants aged 18 years or older, or parents of narcolepsy participants under 18 years
- Participants of any gender, ethnicity, and nationality
- Participants residing in Spain
You will not qualify if you...
- Participants with Narcolepsy Type 1 or Type 2 who do not reside in the hospitals' reference areas
- Participants without a confirmed diagnosis of Narcolepsy Type 1 or Type 2 by a specialist
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person or online)
Duration - Approximately 10 years retrospective data review
Participants' medical records are retrospectively reviewed to collect data on Narcolepsy Type 1 and Type 2 diagnoses.
No visits required; data collected from medical records
Duration - Up to 10 years
Participants with Narcolepsy are observed through retrospective epidemiological data up to 10 years and approximately 2 years for incidence and prevalence assessment.
No visits required; observational data collected retrospectively
Duration - Single day during the study period
Participants in the supplementary group complete an online survey regarding their narcolepsy diagnosis, follow-up, and related experiences.
1 online survey completion
Trial Site Locations
Total: 10 locations
1
Hospital General de Castellón
Castellon, Castellon, Spain, 12004
Not Yet Recruiting
2
Hospital de Navarra
Pamplona, Navarre, Spain, 31008
Not Yet Recruiting
3
Hospital de la Ribera
Alzira, Valencia, Spain, 46600
Not Yet Recruiting
4
Hospital Vall d'Hebrón
Barcelona, Spain, 8035
Not Yet Recruiting
5
Hospital Clinic de Barcelona
Barcelona, Spain, 8036
Actively Recruiting
6
Hospital Virgen de las Nieves
Granada, Spain, 18014
Not Yet Recruiting
7
Hospital Clínico San Carlos
Madrid, Spain, 28040
Active, Not Recruiting
8
Hospital La Paz
Madrid, Spain, 28046
Not Yet Recruiting
9
Hospital Virgen Macarena
Seville, Spain, 41009
Actively Recruiting
10
Hospital de Araba
Vitoria-Gasteiz, Álava, Spain, 1009
Not Yet Recruiting
Research Team
T
Takeda Contact
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
Similar Trials
Frequently Asked Questions
Have more questions? Get in touch with our team for quick support
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.
Already have an account? Log in here