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High Caries Risk PatientsPhase 2/3NCT03684993

Caries Prevention and Side Effects of Gum Arabic and Licorice Extracts Versus Chlorhexidine in High Caries Risk Patients

A Phase 2/3 study testing Arabic, Gum, Licorice Root and Chlorhexidine in people with High Caries Risk Patients and Caries, run by Cairo University at 1 site in Egypt.

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

This trial is to test the caries prevention effect of Arabic gum and Licorice root extracts compared to Chlorhexidine in high caries risk patients. The antimicrobial efficacy and oral side effects from using these mouthwashes will also be tested. Read more about this study

Who is it for?
Ages 18 to 35 yearsHealthy volunteers can take part
What is being tested?
Arabic, Gum, Licorice Root and Chlorhexidine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
63 participants
Where
1 siteEgypt
Study dates
10 Dec 2019to 15 Jan 2020
Phase
Phase 2/3
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 35 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • High caries risk patients according to CAMBRA caries risk assessment tool
  • Baseline of at least 2-3 active non-cavitated or cavitated carious lesionssz
  • Baseline salivary Mutans streptococci count ≥ 106 CFU/ml
  • Baseline salivary Lactobacilli count ≥ 104 CFU/ml
  • Baseline DMF index of at least 3-5
  • Cooperative patients approving to participate in the study

Who cannot join

  • Any systemic conditions, severe medical complications
  • Significant past or current medical condition that may affect oral health or oral flora
  • Current medications (may affect the oral flora or salivary flow)
  • Allergy to any of the ingredients of the study products
  • Use of any antibiotics within the past 3 months
  • Use of any mouth rinses within the past 3 months
Show all 16Show fewer
  • Current periodontitis (sites of probing pocket depth ≥ 5 mm)
  • Evidence of parafunctional habits
  • Dysfunction of temporomandibular joint
  • Presence of developmental dental anomalies
  • Presence of orthodontic appliance or removable prosthesis
  • Pregnancy
  • Xerostomia
  • Heavy smoking
  • Drug or alcohol addiction, or conditions that may decrease adhering to study protocol
  • Lack of compliance

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • Faculty of Dentistry Cairo University

    Cairo, 12411

Other trials in Egypt

About this study

Official title: Effect of Gum Arabic (Acacia Gum) and Licorice (Glycyrrhiza Glabra) Mouthwashes Compared to Chlorhexidine Mouthwash on Caries Prevention and the Prevalence of Oral Side Effects in High Caries Risk Patients: A Randomized Controlled Clinical Trial

This trial is to test the caries prevention effect of Arabic gum and Licorice root extracts compared to Chlorhexidine in high caries risk patients. The antimicrobial efficacy and oral side effects from using these mouthwashes will also be tested.

Read the detailed description

To evaluate the effect of Arabic gum (Acacia gum) and Licorice (Glycyrrhiza Glabra) mouthwashes in comparison to Chlorhexidine mouthwash on reducing caries incidence (development of new caries lesions), antimicrobial efficacy and the prevalence of oral side effects (adverse events) in high caries risk patients.

P: Population with high caries risk patients I1: Arabic Gum mouthwash I2: Licorice mouthwash C: Chlorhexidine mouthwash O1: (Primary outcome) incidence of new caries lesions O2: (secondary outcome) antimicrobial efficacy O3: oral side effects (adverse events) from mouthwash use

Being tested
Arabic, Gum, Licorice Root, Chlorhexidine

What participants receive

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

  • Arabic, GumDrug

    Also called acacia gum

    natural gum of acacia tree: Antimicrobial, anti-inflammatory medicinal plant used as a traditional oral hygiene substance (anticariogenic). It is used in treating sore throats, colds, bronchitis, toothache, gingival bleeding and mouth ulcers.

  • Licorice RootDrug

    Also called Glycyrrhiza Glabra

    natural licorice, herbal plant to relieve coughs, sore throats, and gastric inflammation. flavouring and sweetening agent. it's anti-caries, soothing anti-inflammatory and anticancer properties benefit against oral diseases and dental caries

  • ChlorhexidineDrug

    Also called Chlorhexidine gluconate or Chlorhexidine HCL

    chemical agent used as a mouthwash against cariogenic bacteria. considered the gold standard

Study groups in NCT03684993
Study groupRoleWhat they receive
Arabic gum extractExperimentalnatural product Arabic gum (acacia gum) prepared as a mouthwash
Receives: Drug: Arabic, Gum
Licorice root extractExperimentalnatural product Licorice (Glycyrrhiza Glabra) root extract prepared as a mouthwash
Receives: Drug: Licorice Root
ChlorhexidineActive comparatorchemical agent Chlorhexidine as a mouthwash
Receives: Drug: Chlorhexidine

What is being measured

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

  1. Caries incidence - DMF index - visual and tactile clinical examination for caries detection according to the ICDAS critera

    development of new caries lesions. Clinical examination during study time to Measure DMF scoring index: any changes in number of decayed, missing and filled surfaces due to caries from baseline. Done according to International Caries Detection and Assessment System (ICDAS II criteria)

    Measured: 1 year (detected after 3, 6, 9 and 12 months)

Secondary outcomes (2)
  1. Antimicrobial efficacy - Incubating agar plates - Colony forming units (CFU/mL)

    Antimicrobial effect against streptococcus mutans and lactocbacilli: saliva samples collected and total bacterial count measured after agar plates incubating, expressed in colony forming units

    Measured: 1 year (evaluated after 3, 6, 9 and 12 months)

  2. Side (Adverse) effect - subjective: Reporting Questionnaire - Binary outcome (yes/no)

    side effects from long term use of mouthwash

    Measured: 1 year (recorded after each month of mouthwash use)

Timeline

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

  1. First posted26 Sep 2018
  2. Study start10 Dec 2019
  3. Primary completion15 Jan 2020
  4. Study completion15 Jan 2020

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
63 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03684993
Sponsor's protocol ID
arabic gum licorice CHX
Status last verified
Feb 2020
First submitted
24 Sep 2018
Last updated
28 Feb 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Gupta D, Gupta RK. Investigation of antibacterial efficacy of Acacia nilotica against salivary mutans streptococci: a randomized control trial. Gen Dent. 2015 Jan-Feb;63(1):23-7.

    PubMed 25574715
  • Hu CH, He J, Eckert R, Wu XY, Li LN, Tian Y, Lux R, Shuffer JA, Gelman F, Mentes J, Spackman S, Bauer J, Anderson MH, Shi WY. Development and evaluation of a safe and effective sugar-free herbal lollipop that kills cavity-causing bacteria. Int J Oral Sci. 2011 Jan;3(1):13-20. doi: 10.4248/IJOS11005.

    PubMed 21449211
  • Chandra Shekar BR, Nagarajappa R, Singh R, Thaku R. Antimicrobial efficacy of the combinations of Acacia nilotica, Murraya koenigii L. sprengel, Eucalyptus hybrid and Psidium guajava on primary plaque colonizers. J Basic Clin Pharm. 2014 Sep;5(4):115-9. doi: 10.4103/0976-0105.141954.

    PubMed 25316992
  • Almaz ME, Sonmez IS, Okte Z, Oba AA. Efficacy of a sugar-free herbal lollipop for reducing salivary Streptococcus mutans levels: a randomized controlled trial. Clin Oral Investig. 2017 Apr;21(3):839-845. doi: 10.1007/s00784-016-1827-y. Epub 2016 Apr 30.

    PubMed 27129589
  • Jain E, Pandey RK, Khanna R. Liquorice root extracts as potent cariostatic agents in pediatric practice. J Indian Soc Pedod Prev Dent. 2013 Jul-Sep;31(3):146-52. doi: 10.4103/0970-4388.117964.

    PubMed 24021323

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Arabic, Gum, Licorice Root and Chlorhexidine in people with High Caries Risk Patients and Caries, run by Cairo University at 1 site in Egypt.

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 6 inclusion and 16 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 28 Feb 2020. 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 Egypt. 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.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Caries incidence - DMF index - visual and tactile clinical examination for caries detection according to the ICDAS critera (time frame: 1 year (detected after 3, 6, 9 and 12 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 NCT03684993, which also lists 5 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 28 Feb 2020.

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