Effects of Adjunctive Melatonin Gel in Type II Diabetics With Stage III-IV Periodontitis (MINST)

November 4, 2026 updated by: Mahmoud Saleh Mohamed Awad Saleh Al Kady, Badr University

Effects of Adjunctive Melatonin Gel With Minimally Invasive Non-Surgical Therapy on Clinical Outcomes, Inflammatory Biomarkers and Glycemic Control in Type II Diabetics With Stage III-IV Periodontitis: A Randomized Controlled Clinical Trial

The goal of this clinical trial is to learn if melatonin gel works to treat deep periodontal pockets in diabetic patients with periodontisits.

The main question it aims to answer is:

Does melatonin gel when used with minimal invasive non surgical periodontal therapy show better healing effects.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

The goal of this clinical trial is to evaluate the effects of adjunctive locally delivered Melatonin gel combined with minimally invasive non-surgical therapy (MINST), compared with MINST alone, on clinical periodontal parameters, serum glycemic levels, and gingival crevicular fluid levels of Galectin-3 and interleukin-1β in patients with Stage III/IV periodontitis and type 2 diabetes mellitus.

Study Type

Interventional

Enrollment (Estimated)

32

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Egypt
    • Cairo Governorate
      • New Cairo, Cairo Governorate, Egypt
        • Badr University in Cairo

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female participants. Patients diagnosed with Stage III / IV periodontitis. Presence of at least one site with probing pocket depth (PPD) ≥ 5 mm and clinical attachment loss consistent with Stage III/ IV periodontitis.

Subjects with glycated hemoglobin higher than 6.5% were defined as diabetic.

Exclusion Criteria:

  • Smokers: current or former, as smoking impairs periodontal healing capacity and response to periodontal treatments.

Pregnancy and lactation due to ethical considerations and potential hormonal influences on periodontal tissues.

Patient who received periodontal therapy within the previous 6 months. Use of antibiotics, anti-inflammatory drugs, or antioxidant supplement within the previous 6 months.

Patient with systemic condition other than type 2 diabetes or medication that may affect periodontal healing.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: MINST + Melatonin Gel

Participants will receive minimally invasive non-surgical periodontal therapy (MINST), followed by adjunctive subgingival application of 5% melatonin gel into selected periodontal pockets using a syringe equipped with a suitable cannula, once weekly for four consecutive weeks.
Procedure: Minimally Invasive Non-Surgical Periodontal Therapy (MINST)

Minimally invasive non-surgical periodontal therapy involving subgingival instrumentation using appropriate periodontal instruments under magnification loupes, with the aim of preserving soft tissue integrity and minimizing treatment trauma.

Procedure: 5% Melatonin Gel

Locally delivered 5% melatonin gel administered by subgingival application into selected periodontal pockets using a syringe equipped with a suitable cannula, The gel will be applied once weekly for four consecutive weeks as an adjunct to minimally invasive non-surgical periodontal therapy (MINST).
Active Comparator: MINST Alone

Participants will receive minimally invasive non-surgical periodontal therapy (MINST) alone, without adjunctive melatonin gel.
Procedure: Minimally Invasive Non-Surgical Periodontal Therapy (MINST)

Minimally invasive non-surgical periodontal therapy involving subgingival instrumentation using appropriate periodontal instruments under magnification loupes, with the aim of preserving soft tissue integrity and minimizing treatment trauma.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Clinical Attachment Level (CAL)
Time Frame: from enrollment to 4 weeks then to the end of the study at 8 weeks

Change in clinical attachment level (CAL) from baseline to follow-up (measured in mm) following minimally invasive non-surgical periodontal therapy (MINST) with or without adjunctive local application of 5% melatonin gel.
from enrollment to 4 weeks then to the end of the study at 8 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Probing Pocket Depth (PPD)
Time Frame: from enrollment to 4 weeks then to the end of the study at 8 weeks

Change in probing pocket depth from baseline to follow-up (measured in mm)
from enrollment to 4 weeks then to the end of the study at 8 weeks
Full mouth plaque score (FMPS)
Time Frame: from enrollment to 4 weeks then to the end of the study at 8 weeks

Percentage of the sites of plaque
from enrollment to 4 weeks then to the end of the study at 8 weeks
Full mouth bleeding score (FMBS)
Time Frame: from enrollment to 4 weeks then to the end of the study at 8 weeks

Percentage of the sites of bleeding
from enrollment to 4 weeks then to the end of the study at 8 weeks
GCF Galectin-3
Time Frame: from enrollment to 4 weeks then to the end of the study at 8 weeks

Change in Gingival crevicular fluid level of human galactic-3
from enrollment to 4 weeks then to the end of the study at 8 weeks
GCF Interleukin 1
Time Frame: from enrollment to 4 weeks then to the end of the study at 8 weeks

Change in Gingival crevicular fluid level of human interleukin 1
from enrollment to 4 weeks then to the end of the study at 8 weeks
Serum glycemic level
Time Frame: from enrollment to the end of the study at 8 weeks

Assessment of patient's level of glycemic control measured by hba1c test
from enrollment to the end of the study at 8 weeks
Patient satisfaction
Time Frame: 8 weeks

Assessment of Patient satisfaction by Likert-scale questionnaire
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Badr University

Investigators

  • Principal Investigator: Rasha Wagih, Ass. Prof., Badr University in Cairo

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

November 1, 2026

Primary Completion (Estimated)

March 1, 2027

Study Completion (Estimated)

April 1, 2027

Study Registration Dates

First Submitted

November 4, 2026

First Submitted That Met QC Criteria

November 4, 2026

First Posted (Actual)

November 10, 2026

Study Record Updates

Last Update Posted (Actual)

November 10, 2026

Last Update Submitted That Met QC Criteria

November 4, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • BUC-IACUC-260715-195

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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