NCT07256561

Brief Summary

Successful endodontic treatment and a predictable outcome can only be achieved by effective root canal debridement, irrigation, and elimination of microorganisms . The outcome of endodontic treatment performed in controlled clinical environment has demonstrated success rate around 90%. In certain cases, endodontic treatment may fail, one of the most common reasons is inability to eliminate microorganisms from the root canal. When non-surgical root canal therapy fails, the treatment options include orthograde re-treatment, periradicular surgery, or extraction. Simvastatin (SIM) is a drug used primarily to treat hyperlipidemia and protect against cardiovascular diseases. It has been shown to possess pleiotropic effects such as antimicrobial, anti-inflammatory, immunomodulatory, antioxidant, and bone-forming properties . The side chain of this material has a single methyl group. It inhibits hydroxymethyl glutarylcoenzyme reductase that prevents endogenous cholesterol synthesis

Trial Health

77
On Track

Trial Health Score

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

Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
3mo left

Started Aug 2025

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress74%
Aug 2025Aug 2026

Study Start

First participant enrolled

August 10, 2025

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

November 20, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

December 1, 2025

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
9 days until next milestone

Study Completion

Last participant's last visit for all outcomes

August 10, 2026

Last Updated

December 1, 2025

Status Verified

August 1, 2025

Enrollment Period

12 months

First QC Date

November 20, 2025

Last Update Submit

November 20, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Simvastatin antimicrobial effect

    Following the treatment, patients will be asked to evaluate The antimicrobial effect of Simvastatin intracanal medication

    6 Months

Secondary Outcomes (1)

  • Simvastatin anti-inflammatory effect

    6 Months

Study Arms (2)

Simvastatin Group

ACTIVE COMPARATOR

About 27 Patients will take Simvastatin 10mg tablets which will be crushed into fine particles and dissolved to prepare an intracanal medication with specific concentration according to the antimicrobial sensitivity study.

Procedure: Simvastatin as an intracanal medication

Calcium hydroxide

ACTIVE COMPARATOR

About 27 Patients will be injected by Calcium hydroxide intracanal medication in endodontic retreatment of single rooted teeth with periapical radiolucency.

Procedure: Simvastatin as an intracanal medication

Interventions

to evaluate the antimicrobial and anti-inflammatory effects of Simvastatin as an intracanal medication in endodontic retreatment of single rooted teeth with periapical radiolucency.

Also known as: calcium hydroxide intracanal medication
Calcium hydroxideSimvastatin Group

Eligibility Criteria

Age20 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Patients had anon contributory medical history.
  • Patients of age categories between 20 to 40 years old, with no physical disability or psychological problems.
  • Single rooted teeth with type I root canal anatomy.
  • Symptomatic cases of failed endodontic treatment with radiographic evidence of periapical bone loss, and the lesion size ranging from 2mm up to 8mm.

You may not qualify if:

  • Patients with known sensitivity to the pharmaceutical used in this trial
  • Patients with former endodontic mishaps (as ledges, transportations, perforations or separated instruments)
  • Non restorable teeth
  • Presence of an associated sinus tract.
  • Advanced periodontal involvement
  • Teeth representing root fracture.
  • Pregnant women

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Dental Medicine for Girls, Al-Azhar University

Cairo, Egypt

RECRUITING

MeSH Terms

Interventions

Simvastatin

Intervention Hierarchy (Ancestors)

LovastatinNaphthalenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPolycyclic Compounds

Study Officials

  • Mervat Ibrahim Fawzy, Professor

    Faculty of Dental Medicine for Girls Al Azhar University

    STUDY CHAIR

Central Study Contacts

Hadeer Maher Mostafa Mohamed, MSc

CONTACT

Mervat Ibrahim Fawzy, Professor

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Assistant Lecturer of Endodontics at Suez University

Study Record Dates

First Submitted

November 20, 2025

First Posted

December 1, 2025

Study Start

August 10, 2025

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

August 10, 2026

Last Updated

December 1, 2025

Record last verified: 2025-08

Locations