Effect of Arestin-Enhanced SRP on Periodontal and Glycemic Outcomes in Diabetics

February 18, 2026 updated by: Case Western Reserve University

Effectiveness of Scaling and Root Planing With and Without Minocycline Microspheres (Arestin) in Improving Periodontal and Glycemic Outcomes in Diabetic Patients With Periodontitis: A Randomized Controlled Trial

Periodontitis is a prevalent chronic inflammatory disease that exacerbates systemic inflammation and poses challenges for glycemic control in diabetic patients. While scaling and root planing (SRP) remains the cornerstone of periodontal therapy, adjunctive treatments such as Arestin (minocycline microspheres) have shown promise in enhancing clinical outcomes. This study aims to evaluate the impact of adding Arestin to SRP on periodontal pocket closure, glycemic control, and systemic inflammation in diabetic patients with periodontitis.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
42

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Early Phase 1

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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Gian Pietro Schincaglia, DDS, PhD
  • Phone Number: 216-368-4412
  • Email: gxs486@case.edu

Study Locations

  • United States
    • Ohio
      • Cleveland, Ohio, United States, 44106
        • Recruiting
        • Case Western Reserve University
        • Contact:
          • Gian Pietro Schincaglia, DDS, PhD
          • Phone Number: 216-368-4412
          • Email: gxs486@case.edu
        • Principal Investigator:
          • Gian Pietro Schincaglia, DDS, PhD

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Adults (≥18 years) with type 2 diabetes mellitus (HbA1c ≥ 7.0% and ≤9.5%)
  2. Diagnosed with moderate to severe periodontitis (≥5 mm probing pocket depth in at least 6 distinct interproximal sites, on different teeth)
  3. At least 16 teeth present
  4. No periodontal treatment in the last 6 months

Exclusion Criteria:

  1. Allergy to minocycline or tetracycline
  2. Unable to receive or to tolerate local anesthesia
  3. Unable to tolerate tooth instrumentation with ultrasonic instruments.
  4. Require IV sedation to receive scaling and root planing
  5. Use of antibiotics within the past 3 months
  6. Pregnancy or breastfeeding
  7. Morbid Obesity (BMI 40+)
  8. Smokers or patients with poorly controlled systemic diseases other than diabetes

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: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Test Group
Minocycline microspheres (Arestin®) / (4 mg per cartridge) prefilled delivery syringe / Arestin will be placed in the pocket only one time after scaling and root planing.
Drug: local antibiotic application of topical minocycline
Scaling and Root planing + local application of Arestin ( Minocycline microsphere)
Other Names:
  • Arestin Minocicline microsphere
Active Comparator: Control Group
Scaling and Root Planing Alone
Procedure: Scaling and Root Planing
Only scaling and root planing

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Pocket Closure
Time Frame: Baseline, 3 Months, 6 Months
Pocket Depth (PD ≤4 mm)
Baseline, 3 Months, 6 Months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in Glycemic Control (HbA1c)
Time Frame: Baseline, 3 Months, 6 Months
Changes in Blood Sugar Level
Baseline, 3 Months, 6 Months
Changes in C-reactive Protein Level (CRP)
Time Frame: Baseline, 3 Months, 6 Months
Changes in Systemic Inflammation
Baseline, 3 Months, 6 Months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Case Western Reserve University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
OraPharma

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Gian Pietro Schincaglia, DDS, PhD, Case Western Reserve University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 6, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 11, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 11, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 22, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 19, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • STUDY20250753

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Individual Participant Data (IPD) will not be shared with other researchers. Only de-identified, cumulative data (summary-level results) will be shared with the study sponsor (OraPharma) after study completion. No identifiable participant information such as name, date of birth, or contact details will be disclosed. All collected data will remain securely stored within Case Western Reserve University and will only be accessed by the study investigators and authorized university or regulatory personnel.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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