Evaluation of the role of saliva in the diagnosis of disease

ISRCTN ISRCTN16047134
DOI https://doi.org/10.1186/ISRCTN16047134
Secondary identifying numbers 208
Submission date
08/10/2023
Registration date
11/10/2023
Last edited
11/10/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Saliva is a vital biological fluid that has all the advantages of being an excellent diagnostic tool. It is easy to collect and transport, requires a simple experience to take, safe and acceptable, and contains many vital elements that can be measured by various diagnostic techniques and similar to those used in blood tests. Many researchers have attempted to find salivary biomarkers for oral and systemic diseases using different protocols and techniques. This paper aims to study salivary biomarkers that related to oral diseases such as oral squamous cell carcinoma, lichen planus, recurrent oral stomatitis, and gastrointestinal diseases such as celiac disease.
The study aims to investigate the level of LDH in the blood and in saliva of patients with squamous cell oral cancer, and the level of Cortisol in the blood and in saliva of patients with lichen planus, and also the level of IgA in the blood and in saliva of patients with recurrent oral stomatitis and celiac disease.

Who can participate?
Adults aged 18 years or older with oral squamous cell carcinoma, lichen planus, recurrent oral stomatitis, celiac disease, and healthy controls.

What does the study involve?
Pariticipants provide a saliva sample and complete a questionnaire.

What are the possible benefits and risks of participating?
None

Where is the study run from?
Damascus University (Syria)

When is the study starting and how long is it expected to run for?
February 2018 to January 2023

Who is funding the study?
Damascus University (Syria)

Who is the main contact?
Dr Aliaa Alshaar, aliaa.alshaar@damascusuniversity.edu.sy

Contact information

Dr Aliaa Alshaar
Public, Scientific, Principal Investigator

Damascus University
Mazzeh Highway
Damascus
-
Syria

ORCiD logoORCID ID 0009-0003-8114-8399
Phone +963 958909620
Email aliaa.alshaar@damascusuniversity.edu.sy

Study information

Study designObservational case-control study
Primary study designObservational
Secondary study designCase-control study
Study setting(s)Dental clinic, Laboratory
Study typeDiagnostic
Scientific titleEvaluation of the role of saliva in the diagnosis of oral and systematic diseases (a case-control study)
Study acronymESRDOS
Study objectives1. The value of the salivary LDH changes in patients with oral spiny cell carcinoma, and the value of the LDH itself changes in the blood.
2. The value of the salivary cortisol changes in patients with lichen planus, and its value changes in the blood.
3. The value of salivary IgA changes in patients with recurrent oral thrush, and its value in the blood also changes.
4. The value of salivary IgA changes in patients with celiac disease, and its value changes in the blood.
Ethics approval(s)

Approved 24/09/2018, The scientific research committee of the faculty of dentistry of Damascus University (Mazzeh highway, Damascus, -, Syria; +963 1133923192; info@damascusuniversity.edu.sy), ref: 208

Health condition(s) or problem(s) studiedEvaluation of saliva role in diagnosis of oral cancer, lichen planus, aphthous stomatitis and celiac disease.
InterventionPatients were included after performing an oral and histological examination to confirm the diagnosis of specific disease and obtaining a written consent from each patient. In addition, demographic details including age, gender, smoking habits and educational level were obtained. in lichen planus group participants answered the Beck Depression Rate Questionnaire (Beck). Subsequently, blood and saliva samples were collected from the individuals of both the study group and the control group between 8:00 am and 9:00 am to measure the morning cortisol level in lichen planus group and to measure LDH oral cancer group and to measure IgA in both of aphthous stomatitis and celiac disease groups.
Intervention typeOther
Primary outcome measureMeasured at a single time point:
1. In the lichen planus group, cortisol was measured using an ELIZA test and then the amount of optical absorbance is measured at a wavelength of 450nm.
2. In the oral cancer group LDH was measured using the Hitachi 911 automated clinical chemistry analyzer, utilizing pyruvate as a substrate at 37 ºC.
3. In both aphthous stomatitis and celiac disease groups IgA was measured using the Hitachi 912 machine.
Secondary outcome measuresThere are no secondary outcome measures
Overall study start date10/02/2018
Completion date07/01/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit70 Years
SexBoth
Target number of participants70
Key inclusion criteria1. Age is over 18 years old
2. Oral squamous cell carcinoma, lichen planus, recurrent oral stomatitis, celiac disease.
Key exclusion criteria1. Systemic diseases: such as diabetes, cardiovascular disease, renal disease, liver disorders and hypertension
2. On regular medications
3. Suffers from any mental disorder or any physical disability
Date of first enrolment10/10/2018
Date of final enrolment25/09/2022

Locations

Countries of recruitment

  • Syria

Study participating centre

Damascus University
Mazzeh highway
Damascus
-
Syria

Sponsor information

Damascus University
University/education

Mazzeh Highway
Damascus
-
Syria

Phone +963 958909620
Email info@damascusuniversity.edu.sy
Website http://www.damascusuniversity.edu.sy
ROR logo "ROR" https://ror.org/03m098d13

Funders

Funder type

University/education

Damascus University
Government organisation / Universities (academic only)
Alternative name(s)
University of Damascus, جَامِعَةُ دِمَشْقَ, DU
Location
Syria

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryPublished as a supplement to the results publication
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planAll data generated or analysed during this study will be included in the subsequent results publication

Editorial Notes

11/10/2023: Trial's existence confirmed by Damascus University.