ClinicalTrials.gg
CompletedNCT05098600Updated Dec 3, 2024

The Epidemiology, Management and Comorbidities in Alopecia Areata in Czech Republic

An observational study in Alopecia Areata, Alopecia Totalis and Alopecia Universalis, sponsored by Faculty Hospital Kralovske Vinohrady. Completed at 1 site in Czechia. Per ClinicalTrials.gov, last updated 2024-12-03.

Sponsored by Faculty Hospital Kralovske Vinohrady · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
123
Sex
All
01

Study summary

The study series consists of three studies with the aim to assess the incidence, prevalence, risk factors, comorbidities and management of patients with alopecia areata in Czech Republic based on the patients and registry of a dermatology clinic of a metropolitan hospital.

Read the detailed description

The first study will aim to identify the incidence and prevalence of alopecia areata in the dermatology clinic of a metropolitan teaching hospital between 1/1/2011 and 31/12/2020

The second study will assess (1) the epidemiology of autoimmune and atopic diseases in patients with alopecia areata, (2) the presence of possible risk factors responsible for the onset/relapse/exacerbation of alopecia areata, (3) the levels of vitamin D and various autoantibodies,particularly thyroid autoantibodies and (4) the variety, duration, efficacy and safety profile of treatment modalities used in our hospital for the management of alopecia areata from 15/10/2021 to 14/10/2022.

The third study will monitor the monthly oscillations of vitamin D and thyroid-autoantibodies of patients with new-onset/relasping or exacerbating alopecia areata for six months, between 15/10/2021-14/10/2022 in order to observe if changes in levels of vitamin D and thyroid-antiantibodies are associated with severity and prognosis (worsening or improvement) of alopecia areata

02

Conditions studied

  • Alopecia Areata
  • Alopecia Totalis
  • Alopecia Universalis
  • Alopecia Areata (& Ophiasis)
  • Alopecia Barbae
  • Alopecia Diffuse
  • Autoimmune Diseases
  • Autoimmune Hyperthyroidism
  • Autoimmune Hypothyroidism
  • Diabetes Mellitus, Type 1
  • Ulcerative Colitis
  • Inflammatory Bowel Diseases
  • Crohn Disease
  • Rheumatoid Arthritis
  • Down Syndrome
  • Atopic Dermatitis
  • Atopic Asthma
  • Atopic Rhinitis
  • Vitiligo
  • Psoriasis
  • Ankylosing Spondylitis
  • Multiple Sclerosis
  • Lupus Erythematosus
  • COVID-19 Pandemic
  • Vaccine Reaction
  • Infections
  • Anemia, Pernicious
03

In context

Alopecia Areata

220 studies on the registry are indexed under Alopecia Areata; 61 are open to participants now.

This study's enrollment of 123 is below the median of 370 across 39 observational studies indexed under Alopecia Areata.

Browse Alopecia Areata studies →

Lead sponsor

Faculty Hospital Kralovske Vinohrady is the lead sponsor of 30 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Adult and children patients with a dermatologic condition between 1/1/2011-31/12/2020 and for the second study, adults and children with first-onset/relapsing/persistent-untreated alopecia areata visiting our clinic between 15/10/2021 and 14/10/2022 who sign informed consent are eligible.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • All patients visiting our clinic with a dermatologic condition between 1/1/2011-31/12/2020
  • For the second study, only patients with histologic/dermatoscopic diagnosis of new-onset/relapsing/peristent-untreated alopecia areata, presenting to our clinic between 15/10/2021-14/10/2022 are included.

Exclusion criteria

Exclusion Criteria:

  • For the second study patients with other alopecias, patients denying data sharing despite signing the informed concent and presenting outside the study period are excluded.
  • For the third study, patients with other types of alopecia, as well as those who signed the but refused to share their data or undergo blood tests at our hospital, and those who did not visit our outpatient department at least once a month for the required duration, were excluded.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
123 participants (actual)
Patient registry
No

Groups and cohorts

  • Cases

    Patients with a confirmed histologic/dermatoscopic diagnosis of Alopecia areata within the study period will be included for analysis.

    Other: Exposure of interest

Interventions

  • OtherExposure of interest

    Common autoimmune and atopic conditions consist of atopic dermatitis, allergic rhinitis, asthma, Crohn's disease, ulcerative colitis, Celiac disease, Pernicious anaemia, Type 1 diabetes, Autoimmune thyroiditis (Hashimoto's thyroiditis, Grave's disease, atrophic, unspecified), rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, polymyalgia rheumatica, Systemic lupus erythematosus, Sjogren syndrome, psoriasis, vitiligo, Multiple sclerosis

06

What researchers measure

Primary outcomes

  1. The epidemiology of Alopecia areata

    The incidence and point prevalence of Alopecia areata within the study cohort during the study period, stratified by age-group and gender

    Time frame: 1/1/2011-31/12/2020

  2. The epidemiology of Alopecia areata

    The incidence and point prevalence of Alopecia areata (totalis, universalis, ophiasis, sisaipho, reticularis, diffuse, barbae) within the study cohort during the study period, stratified by age-group and gender

    Time frame: 1/10/2020-30/9/2021

  3. Prevalence of atopic and autoimmune conditions in patients with Alopecia Areata

    Prevalence of atopic and autoimmune conditions in patients with Alopecia Areata

    Time frame: 15/10/2021-14/10/2022

  4. Treatments for alopecia areata

    Assessment of various treatment modalities used for alopecia areata

    Time frame: 15/10/2021-14/10/2022

  5. Safety and efficacy of treatments in alopecia areata

    Assessment of various treatment modalities used for alopecia areata, efficacy, duration of treatment, reported side-effects and relapse rate after withdrawal

    Time frame: 15/10/2021-14/10/2022

  6. Measurement of Thyroid stimulating hormone (TSH)

    Measurement of TSH on first visit and once a month for 6 months. Normal values for adults 0.550-4.780 mu/l according to our laboratory. All blood tests will be performed in our laboratory at the day of the visit before any clinical examination

    Time frame: 15/10/2021-14/10/2022

  7. Measurement of free Thyroxine (fT4)

    Measurement of fT4 on first visit and once a month for 6 months. Normal values for adults 11.50-22.70 pmol/l according to our laboratory. All blood tests will be performed in our laboratory at the day of the visit before any clinical examination

    Time frame: 15/10/2021-14/10/2022

  8. Measurement of free Triodothyronine (fT3)

    Measurement of fT3 on first visit and once a month for 6 months. Normal values for adults 3.50-6.50 pmol/l according to our laboratory. All blood tests will be performed in our laboratory at the day of the visit before any clinical examination

    Time frame: 15/10/2021-14/10/2022

  9. Measurement of Thyroid peroxidase autoantibodies (TPOAbs)

    Measurement of TPOAbs on first visit and once a month for 6 months. Normal values for adults \<60 kU/l according to our laboratorypmol/l. All blood tests will be performed in our laboratory at the day of the visit before any clinical examination

    Time frame: 15/10/2021-14/10/2022

  10. Measurement of thyreoglobulin autoantibodies (TgAbs)

    Measurement of TgAbs on first visit and once a month for 6 months. Normal values for adults \<4.5 kIUl/l according to our laboratory. All blood tests will be performed in our laboratory at the day of the visit before any clinical examination

    Time frame: 15/10/2021-14/10/2022

  11. Measurement of anti TSH receptor antibodies (TRAbs)

    Measurement of TRAbs on first visit and once a month for 6 months. Normal values for adults \<1.22 Ul/l according to our laboratory. All blood tests will be performed in our laboratory at the day of the visit before any clinical examination

    Time frame: 15/10/2021-14/10/2022

  12. Measurement of Vitamin D levels

    Measurement of Vitamin D levels on first visit and once a month for 6 months. Normal values for adults are 75.0-250.0 nmol/l acording to our laboratory. All blood tests will be performed in our laboratory at the day of the visit before any clinical examination

    Time frame: 15/10/2021-14/10/2022

Secondary outcomes

  1. Prevalence of atopic and autoimmune conditions in the family history of patients with Alopecia Areata

    Prevalence of atopic and autoimmune conditions in parents and siblings of patients with Alopecia Areata

    Time frame: 15/10/2021-14/10/2022

  2. Identification and prevalence of possible exacerbating factors in patients with Alopecia Areata

    Identification of possible risk factors occuring within 6 months from the onset/relapse/worsening of alopecia areata, according to patient history

    Time frame: 15/10/2021-14/10/2022

07

Study locations

1 site
  • Teaching Hospital of Royal Vineguards
    Prague, 100 00, Czechia
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2021 to primary completion in Oct 2022, 11 months.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 16, 2021
First posted
Oct 28, 2021
StartActual
Oct 15, 2021
Primary completionActual
Oct 14, 2022
CompletionActual
Dec 20, 2022
Last update
Dec 3, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 3, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05098600
Lead sponsor
Faculty Hospital Kralovske Vinohrady
Responsible party
Athanasios J. Stefanis (Prinicipal Investigator, Faculty Hospital Kralovske Vinohrady) — Principal investigator
First posted
Oct 28, 2021
Start date
Oct 15, 2021
Primary completion
Oct 14, 2022
Completion
Dec 20, 2022
Last update
Dec 3, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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