ClinicalTrials.gg
Status unknownNCT04732741Updated Feb 1, 2021

Diagnostic Accuracy of Salivary Gamma-synuclein in Oral Malignant and Premalignant Lesions

An observational study in Oral Cancer, Oral Lichen Planus and Oral Leukoplakia, sponsored by Cairo University. Status unknown. Open to participants aged 20 Years to 80 Years. Per ClinicalTrials.gov, last updated 2021-02-01.

Primary conditionLeukoplakia, OralRegistry: Mouth NeoplasmsReclassifiedWhy we changed it
Registry
Mouth Neoplasms — the first condition term the registry derived for this study.
ClinicalTrials.gg
Leukoplakia, Oral
Why
  1. The study's listed conditions name Leukoplakia, Oral, a narrower term within Mouth Neoplasms.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Cairo University · Observational

The sponsor has not verified this record recently (last verified Jan 2021), so the status shown — last known as Not yet recruiting — may be out of date.
Study type
Observational
Model
Other
Time perspective
Cross-sectional
Enrollment
69
Ages
20 Years to 80 Years
Sex
All
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Study summary

Synucleins are a family of small, highly conserved proteins found in vertebrates and are specially abundant in neurons particularly in presynaptic terminals (Surguchov et al., 2001). Gamma-synuclein is the third member of the synuclein family, and is predominantly found in the cytosol of tumor cells and functions both intra- and extra-cellularly. It is involved in the pathogenesis of different types of cancer and some neurodegenerative diseases (Liu et al., 2018). Smoking - a major risk factor for oral cancer and its progression - and nicotine-containing products were found to time-dependently up-regulate the Gamma-synuclein expression in cancer cells (Hsu et al., 2020a).

Gamma-synuclein is released from tumor cells and was found to be elevated in tumors such as urinary bladder cancer (Liu et al., 2016), colorectal cancer, gastric adenocarcinomas and esophageal cancer (Liu et al., 2012). It is present in blood, serum, cerebrospinal fluid and saliva. The detection of extracellular synucleins in body fluids can reveal the first steps of the disease thus it can be used as a potential tool for early cancer detection (Surguchov, 2016).

This study aims to identify the diagnostic accuracy of Gamma-synuclein in differentiating between oral malignant lesions and oral premalignant lesions.

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Conditions studied

  • Oral Cancer
  • Oral Lichen Planus
  • Oral Leukoplakia
  • Premalignant Lesion

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In context

Leukoplakia, Oral Reclassified

48 studies on the registry are indexed under Leukoplakia, Oral; 11 are open to participants now.

This study's planned enrollment of 69 is below the median of 97 across 20 observational studies indexed under Leukoplakia, Oral.

Browse Leukoplakia, Oral studies →

Lead sponsor

Cairo University is the lead sponsor of 4,941 studies on the registry; 1,457 are open to participants now.

Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Compared within Leukoplakia, Oral, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Mouth Neoplasms. The counts are of registry records indexed under each term, refreshed daily. How we classify →

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Who can participate

Ages eligible
20 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Group 1: patients with malignant lesions will be diagnosed through clinical and histopathological examination of tissue biopsy.

Group 2: patients with oral potentially malignant lesions will be diagnosed clinically and histopathological examination of tissue biopsy.

Group 3: healthy individuals who will be examined clinically through conventional visual and tactile examination to ensure no oral lesions are present and through thorough medical history

Inclusion criteria

Group 1: patients with malignant lesions will be diagnosed through clinical and histopathological examination of tissue .

Group 2: patients with oral potentially malignant lesions will be diagnosed clinically and histopathological examination of tissue biopsy.

Group 3: healthy individuals who will be examined clinically through conventional visual and tactile examination to ensure no oral lesions are present and through thorough medical history

Exclusion criteria

Exclusion Criteria:

-

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.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

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Study design

Observational model
Other
Time perspective
Cross-sectional
Enrollment
69 participants (estimated)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Oral Cancer

    patients diagnosed clinically and histopathologically with oral cancer who have yet to receive any treatment.

    Diagnostic Test: Salivary Gamma-synuclein · Diagnostic Test: Incisional biopsy · Diagnostic Test: Conventional visual and tactile examination

  • Premalignant lesions

    patients diagnosed clinically and histopathologically with oral potentially malignant lesions who have not yet to receive treatment or had a month wash-out period from any previous treatment.

    Diagnostic Test: Salivary Gamma-synuclein · Diagnostic Test: Incisional biopsy · Diagnostic Test: Conventional visual and tactile examination

  • Control Group

    healthy individuals who will be examined clinically through conventional visual and tactile examination to ensure no oral lesions are present and through thorough medical history

    Diagnostic Test: Salivary Gamma-synuclein · Diagnostic Test: Conventional visual and tactile examination

Interventions

  • Diagnostic testSalivary Gamma-synuclein

    Gamma-synuclein salivary levels measured using ELISA assay

  • Diagnostic testIncisional biopsy

    A) Biopsy (reference standard): biopsy for group 1 will be performed by specialists in the national cancer institute. B) Biopsy for oral potentially malignant lesions will be performed by the candidate from the most representative region.

  • Diagnostic testConventional visual and tactile examination

    Conventional visual and tactile examination using light and mirror

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What researchers measure

Primary outcomes

  1. Gamma-synuclein level sensitivity and specificity

    Measured using ELISA reader

    Time frame: At same time as biopsy

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Study locations

No study locations are listed for this record.

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References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Mar 2021; primary completion for Dec 2021, 9 months later.

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

Registered
Jan 27, 2021
First posted
Feb 1, 2021
StartEst.
Mar 10, 2021
Primary completionEst.
Dec 10, 2021
CompletionEst.
Dec 10, 2021
Last update
Feb 1, 2021
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 Feb 1, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04732741
Lead sponsor
Cairo University
Responsible party
Salma mohamed saad-eldin mahmoud (Resident at the faculty of Dentistry, Cairo University) — Principal investigator
First posted
Feb 1, 2021
Start date
Mar 10, 2021 (estimated)
Primary completion
Dec 10, 2021 (estimated)
Completion
Dec 10, 2021 (estimated)
Last update
Feb 1, 2021

Study contacts

Fat'heya Zahran
Contact
fatheya.zahran@dentistry.cu.edu.eg
01060775113
Noha Azab
Contact
noha.adel@dentistry.cu.edu.eg
01001381954

Oversight

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

Not currently enrolling

This study is status unknown, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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