NCT03762915

Brief Summary

The primary goal of this study is to investigate the qualitative and quantitative effects of scaling and root planing (SRP) with and without minocycline HCL microspheres, 1 mg on periodontal pathogens and overall bacterial load. A randomized controlled clinical trial of a control (SRP) group and an experimental (SRP with minocycline HCl microspheres, 1 mg) group is planned. Specific Aim 1: Evaluate the cumulative oral periodontal bacterial burden in both control and test groups over a six month period. Specific Aim 2: Assess gingival crevicular fluid (GCF) and serum biomarkers of inflammation.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
70

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started May 2019

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 28, 2018

Completed
6 days until next milestone

First Posted

Study publicly available on registry

December 4, 2018

Completed
6 months until next milestone

Study Start

First participant enrolled

May 20, 2019

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2022

Completed
2 years until next milestone

Results Posted

Study results publicly available

March 25, 2024

Completed
Last Updated

January 28, 2025

Status Verified

January 1, 2025

Enrollment Period

2.9 years

First QC Date

November 28, 2018

Results QC Date

March 31, 2023

Last Update Submit

January 2, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Bacteria Load (log10)

    This is log 10 of the Bacteria load measured. The lower amount of bacteria means good conditions and the higher amount of bacteria means worse conditions. For data analysis fixed effects terms for log10 pathogen quantity were summarized using estimated marginal means with 95% confidence intervals (CI).

    Baseline

  • Bacteria Load (log10)

    This is log 10 of the Bacteria load measured. The lower amount of bacteria means good conditions and the higher amount of bacteria means worse conditions. For data analysis fixed effects terms for log10 pathogen quantity were summarized using estimated marginal means with 95% confidence intervals (CI).

    3 months

  • Bacteria Load (log10)

    This is log 10 of the Bacteria load measured. The lower amount of bacteria means good conditions and the higher amount of bacteria means worse conditions. For data analysis fixed effects terms for log10 pathogen quantity were summarized using estimated marginal means with 95% confidence intervals (CI).

    6 months

Other Outcomes (13)

  • Gingival Crevicular Fluid (GCF) Markers

    baseline, 1, 3, and 6 months

  • Serum Markers

    baseline

  • Serum Markers

    1 month

  • +10 more other outcomes

Study Arms (2)

SRP with minocycline HCl microspheres

EXPERIMENTAL

The intervention of minocycline HCl microspheres, 1 mg will be administered in the experimental group at baseline and the three month periodontal maintenance visit.

Drug: minocycline HCl microspheres

SRP without minocycline HCl microspheres

NO INTERVENTION

The control group will not have minocycline HCl microspheres, 1 mg administered.

Interventions

Minocycline HCl microspheres, 1 mg are approved by the Food and Drug Administration (FDA) as an adjunct to SRP procedures for reduction of pocket depth in patients with adult periodontitis.

Also known as: Arestin
SRP with minocycline HCl microspheres

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and Female
  • At least 18 years of age
  • ADA Class III-IV Chronic Periodontitis
  • Scaling and Root Planing (SRP) or localized SRP
  • A minimum of eight sites with pockets ≥5mm with bleeding on probing (any quadrant)

You may not qualify if:

  • Unable to comply with study protocol
  • Completed treatment of Scaling and Root Planing (SRP) and/or localized SRP within the last 6 months
  • Cigarette use within the last year
  • ≥2 weeks of antibiotic use in the past three months. Or antibiotic use in the last six weeks.
  • Pregnant, planning to become pregnant, or unsure of pregnancy status (self- reported)
  • Diagnosed cardiac conditions (cardiovascular disease (CVD) or atherosclerotic vascular disease (ASVD) including coronary heart disease, cerebrovascular disease, and peripheral artery disease, myocardial infarction, stroke, stable or unstable angina, transient ischemic attack, or coronary or other arterial revascularization
  • Have any uncontrolled medical condition or immunocompromised that may impact the study (uncontrolled diabetes HbA1c \> 7, HIV, etc.)
  • Tetracycline allergy
  • Any medication that may impact periodontal conditions (Phenytoin, calcium antagonists, cyclosporin, warfarin, or NSAIDS)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Minnesota

Minneapolis, Minnesota, 55455, United States

Location

MeSH Terms

Interventions

Minocycline

Intervention Hierarchy (Ancestors)

TetracyclinesNaphthacenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPolycyclic Compounds

Results Point of Contact

Title
Michelle Arnette
Organization
University of Minnesota

Study Officials

  • Michelle Arnett

    University of Minnesota

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 28, 2018

First Posted

December 4, 2018

Study Start

May 20, 2019

Primary Completion

April 1, 2022

Study Completion

April 1, 2022

Last Updated

January 28, 2025

Results First Posted

March 25, 2024

Record last verified: 2025-01

Locations