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Allergic RhinitisNCT03070288

RGB(Red- Green-Blue) Measurement of the Nasal Mucosal Image

An observational study of Allergic Rhinitis, run by Bezmialem Vakif University at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study was to evaluate the color values of the nasal mucosa, which is easily assessable by a direct, non-invasive, objective photographic measurement, for the purpose of presenting a diagnostic objective parameter of allergic rhinitis (AR). Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Allergic Rhinitis
What is being tested?
Red-green-blue measurements of nasal mucosa image
How many people
146 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Feb 2018to 10 Apr 2019
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: This study enrolled 73 patients with allergic rhinitis (Group 1) and 73 normal healthy individuals(Group 2) with no nasal pathologies and respiratory tract infection attending to the outpatient clinic of the tertiary referral center. Patient's symptoms were questioned and noted by using Lebel Symptom Score Scale. Clinical examination was also done to help diagnose and exclude acute respiratory tract infection. All of the patients had positive skin prick test results for at least one of the most common aeroallergens.

Who may be able to join

  • Subject has positive skin prick test results
  • Subject has more than 5 points of Lebel Symptom Score Scale
  • Subjects between 18-60 ages
  • Subjects with allergic rhinitis

Who cannot join

  • Negative skin prick test results
  • Acute respiratory tract infection existence
  • Scores less than 5 points of Lebel Symptom Score Scale

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Bezmialem Vakif University

    Istanbul

Other trials in Turkey (Türkiye)

About this study

Official title: RGB(Red- Green-Blue) Measurement of the Nasal Mucosal Image: A New Diagnostic Parameter for Allergic Rhinitis

The aim of this study was to evaluate the color values of the nasal mucosa, which is easily assessable by a direct, non-invasive, objective photographic measurement, for the purpose of presenting a diagnostic objective parameter of allergic rhinitis (AR).

All patients and controls were examined by the same 4 mm 0⁰endoscope and light source, and all endoscopic photographs of the septum and both inferior turbinates were taken. Adobe Photoshop Elements 7.0 program was used to measure the numerical values of the red-green-blue (RGB) color components in endoscopic photographs of the nasal mucosa on the septum and inferior turbinates.

Read the detailed description

This study enrolled 73 patients with AR (Group 1) and 73 normal healthy individuals(Group 2) with no nasal pathologies and respiratory tract infection attending to the outpatient clinic of the tertiary referral center. Patient's symptoms were questioned and noted by using Lebel Symptom Score Scale. Clinical examination was also done to help diagnose and exclude acute respiratory tract infection. All of the patients had positive skin prick test results for at least one of the most common aeroallergens. All patients and controls were examined by the same 4 mm 0⁰endoscope and light source, and all endoscopic photographs of the septum and both inferior turbinates were taken. Each image was marked with standardized points at the anterior part of the nasal mucosa on both sides (2 points each right and left sides of the anterior septum and 2 points each anterior part of the inferior turbinates). These points were numbered 1 and 2 over the right inferior turbinate; 3 and 4 over the right side of the anterior septum; 4 and 5 over the left inferior turbinate; 6 and 7 over the left side of the anterior septum. Adobe Photoshop Elements 7.0 program was used to measure the numerical values of the red-green-blue color components in endoscopic photographs of the nasal mucosa on the septum and inferior turbinates.

Being tested
Red-green-blue measurements of nasal mucosa image
Keywords
RGB, red-green-blue, rhinitis, allergic rhinitis, nasal mucosa
Medical subject headings
Rhinitis, Allergic, Rhinitis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Red-green-blue measurements of nasal mucosa imageOther

    Adobe Photoshop Elements 7.0 program automatically measures the numerical values of the RGB color components in the selected area

Study groups in NCT03070288
Study groupRoleWhat they receive
Group 1Red-green-blue measurements of nasal mucosa images of patients with allergic rhinitis
Receives: Other: Red-green-blue measurements of nasal mucosa image
Group 2Red-green-blue measurements of nasal mucosa images of normal healthy individuals
Receives: Other: Red-green-blue measurements of nasal mucosa image

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The difference of nasal mucosa color between groups

    Nasal mucosa colors of the groups were measured with the numerical values of the RGB color components. All endoscopic photographs of the septum and both inferior turbinates of the patients and healthy individuals were taken while the examination at the outpatient clinic for three months. Adobe Photoshop Elements 7.0 program automatically measures the numerical values of the RGB color components in the pointed area. Color discoloration at the nasal mucosa of allergic patients compared with the healthy individuals by using RGB measurements.

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Mar 2017
  2. Study start1 Feb 2018
  3. Primary completion1 Mar 2018
  4. Study completion10 Apr 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
146 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03070288
Sponsor's protocol ID
B.30.2.BAV.0.05.05/397
Status last verified
Aug 2019
First submitted
30 Jan 2017
Last updated
8 Aug 2019
Results posted
No
Individual data sharing
No

Publications

  • Ozturan O, Dogan R, Yenigun A, Veyseller B, Yildirim YS. Photographic Objective Alterations for Laryngopharyngeal Reflux Diagnosis. J Voice. 2017 Jan;31(1):78-85. doi: 10.1016/j.jvoice.2015.12.021. Epub 2016 Feb 9.

    PubMed 26873421
  • Tugrul S, Degirmenci N, Eren SB, Dogan R, Meric Hafiz A, Ozturan O. RGB measurements as a novel objective diagnostic test for otitis media with effusion. Acta Otolaryngol. 2015 Apr;135(4):342-7. doi: 10.3109/00016489.2014.984877. Epub 2015 Mar 5.

    PubMed 25739969
  • Osada T, Arakawa A, Sakamoto N, Ueyama H, Shibuya T, Ogihara T, Yao T, Watanabe S. Autofluorescence imaging endoscopy for identification and assessment of inflammatory ulcerative colitis. World J Gastroenterol. 2011 Dec 14;17(46):5110-6. doi: 10.3748/wjg.v17.i46.5110.

    PubMed 22171146

Questions about this trial

What is this clinical trial studying?

An observational study of Allergic Rhinitis, run by Bezmialem Vakif University at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The difference of nasal mucosa color between groups (time frame: 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03070288, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Aug 2019.

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