ClinicalTrials.gg
RecruitingNCT06742580Updated Dec 19, 2024

The Relationship Between Idiopathic Acute Peripheral Facial Paralysis and Homocysteine Level in Adult Patients

An observational study in Facial Paralysis, Peripheral and Bell Palsy, sponsored by Murat Akın. Recruiting at 3 sites in Turkey. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-19.

Sponsored by Murat Akın · Observational

From the registry’s dates

  • Primary completion was expected by Apr 2025, 1 year 7 months ago, but the record still lists the study as recruiting.
  • Started Dec 2023; still recruiting 2 years 11 months later.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
80
Ages
18 Years to 80 Years
Sex
All
01

Study summary

In the etıology of Idıopathıc Acute Perıpheral Facıal Palsy, known as bell palsy, many causes have been descrıbed, such as specıfıc ımmune, ıchemıc, ınfectıous and heredıal factors. ın our study, we have observed the blood homocysteıne level that causes thrombotıc dısorders ın paralysıs patıents.

Read the detailed description

Bell's palsy, also known as "acute facial palsy of unknown cause", is a common cranial neuropathy that characteristically causes facial muscle paresis or complete paralysis on one side, occurs suddenly and may progress over 48 hours. It is accompanied by postauricular pain, dysgeusia, subjective alteration of facial sensation, and hyperacusis. Bell's palsy accounts for 60-75 percent of all cases of facial palsy. It occurs in 7-40 cases per 100,000 people each year, and the prevalence is similar in both sexes. Its cause remains idiopathic, but it is strongly associated with certain viral infections, which cause neuritis leading to focal edema, demyelination, and ischemia. Although the exact pathogenesis of Bell's palsy is unknown and is considered idiopathic, specific immune, ischemic, and hereditary factors are strongly associated with its etiology. Homocysteine is an amino acid that is not provided by the diet and can be converted to cysteine with the help of specific B vitamins or converted back to methionine, an essential amino acid. Homocysteine levels vary between men and women and are usually in the normal range of 5 to 15 micromoles/L. When homocysteine levels exceed 15 micromoles/L, it is called hyperhomocysteinemia.

The estimated prevalence of mild hyperhomocysteinemia in the general population is 5% to 7%. Several studies have shown that it is an independent risk factor for thrombotic disorders (i.e., deep vein thrombosis). It has even been reported that lowering a patient's homocysteine level by 25% reduces the risk of stroke by 19%.

A significant relationship was found in the meta-analysis conducted in the literature regarding sudden sensorineural hearing loss and high homocysteine levels. Due to the similar anatomical location of the facial nerve and N. vestibulocochlearis, it was planned to examine the relationship between acute idiopathic peripheral paralysis and homocysteine. There is no previous study in the literature. Therefore, this study will be the pioneering research in the literature regarding blood homocysteine levels in patients diagnosed with Idiopathic Acute Peripheral Facial Paralysis.

02

Conditions studied

  • Facial Paralysis, Peripheral
  • Bell Palsy

Keywords

  • Acute Peripheral Facial Paralysis
  • Homocysteine
  • Bell Palsy
03

In context

Facial Paralysis

81 studies on the registry are indexed under Facial Paralysis; 28 are open to participants now.

This study's planned enrollment of 80 is close to the median of 80 across 21 observational studies indexed under Facial Paralysis.

Browse Facial Paralysis studies →

Lead sponsor

This is the only study on the registry with Murat Akın as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

AFYON HEALTH SCIENCES UNIVERSITY HOSPITAL

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

  • Patients admitted with acute facial paralysis

Exclusion criteria

Exclusion Criteria:

  • Facial and ear trauma or tumor
  • İatrogenic
  • Cholesteatoma
  • Facial paralysis due to central nervous system diseases
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
80 participants (estimated)
Target follow-up
2 Months
Patient registry
Yes

Groups and cohorts

  • Bell palsy patient group

    Patients who applied to our hospital due to idiopathic facial paralysis within the first month

  • control group

    Healthy individuals with no known health problems

06

What researchers measure

Primary outcomes

  1. Homosystein test results

    The results have not been obtained from lab yet. So none results were measured .

    Time frame: up to 24 weeks

07

Study locations

2 of 3 sites recruiting
08

References and documents

Publications

  • Singh A, Deshmukh P. Bell's Palsy: A Review. Cureus. 2022 Oct 11;14(10):e30186. doi: 10.7759/cureus.30186. eCollection 2022 Oct. PubMed 36397921 ↗
  • Son P, Lewis L. Hyperhomocysteinemia. 2022 May 8. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK554408/ PubMed 32119295 ↗
  • Niu X, Chen Y, Zhong Y, Xiao X. The relationship between serum homocysteine levels and sudden sensorineural hearing loss: a meta-analysis. Eur Arch Otorhinolaryngol. 2023 May;280(5):2091-2097. doi: 10.1007/s00405-023-07829-w. Epub 2023 Jan 19. PubMed 36658368 ↗
  • Eviston TJ, Croxson GR, Kennedy PG, Hadlock T, Krishnan AV. Bell's palsy: aetiology, clinical features and multidisciplinary care. J Neurol Neurosurg Psychiatry. 2015 Dec;86(12):1356-61. doi: 10.1136/jnnp-2014-309563. Epub 2015 Apr 9. PubMed 25857657 ↗

Individual participant data

Plan to share: No — WILL BE DECLARED AT THE RESULT OF THE STUDY

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Dec 2023 (actual). Primary completion is estimated for Apr 2025, 16 months after the start.

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

Registered
Dec 13, 2024
First posted
Dec 19, 2024
StartActual
Dec 1, 2023
Primary completionEst.
Apr 1, 2025
CompletionEst.
Aug 4, 2025
Last update
Dec 19, 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 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06742580
Lead sponsor
Murat Akın
Responsible party
Murat Akın (assistant doctor, Afyonkarahisar Health Sciences University) — Sponsor-investigator
First posted
Dec 19, 2024
Start date
Dec 1, 2023
Primary completion
Apr 1, 2025 (estimated)
Completion
Aug 4, 2025 (estimated)
Last update
Dec 19, 2024

Study contacts

MURAT AKIN, ASSISTANT DOCTOR
Contact
makin.md279@gmail.com
+90 272 246 33 35 ext. +905333414438
Orhan Kemal KAHVECİ, PROFESSOR
Contact
orhangs75@hotmail.com
+90 272 246 33 35 ext. +905324713283
Orhan Kemal KAHVECİ, PROFESSOR
principal investigator · AFYON HEALTH SCIENCES UNIVERSITY HOSPITAL

Oversight

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

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