Regenerative Endodontic Procedure of Immature Permanent Teeth With L-PRF: a Pilot Controlled, Clinical Trial

November 3, 2020 updated by: Universitaire Ziekenhuizen KU Leuven

Regenerative Endodontic Procedure of Immature Permanent Teeth With the Use of Autologous L-PRF: a Pilot Controlled, Clinical Trial

This study evaluates the impact of autologous 'leucocyte and platelet rich fibrin' (L-PRF) on the periapical bone healing and further root development of infected immature permanent teeth. In the test group regenerative endodontic procedure (REP) is performed with L-PRF as scaffold, in the control group REP without L-PRF is performed .

Study Overview

Status

Status

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

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.

Detailed Description

Regenerative endodontic procedures are biologically based procedures designed to restore function of a damaged and nonfunctioning pulp by stimulation of existing stem and progenitor cells present in the root canal and/or the introduction and stimulation of new stem and dental pulp progenitor cells into the root canal under conditions that are favorable to their differentiation and reestablishment of function. L-PRF has the potential advantage of creating a bioactive construct that stimulates the local environment for differentiation and proliferation of these stem and progenitor cells. We have designed this confirmatory study to test the hypothesis that the use of L-PRF in REP of infected permanent immature teeth will accelerate periapical bone healing and stimulate the root maturation.

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 (Actual)

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.
29

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.
  • Phase 3

Contacts and Locations

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

Study Locations

  • Belgium
      • Brussels, Belgium, 1082
        • Megabite Dental Office
      • Herent, Belgium, 3020
        • C-Endo
      • Leuven, Belgium, 3000
        • Department of Oral Health Sciences, KU Leuven & Dentistry, University Hospitals Leuven
      • Rotselaar, Belgium, 3110
        • EndoVanGorp

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

6 years to 25 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Provision of Informed Consent
  • Permanent immature teeth with weak root canal walls (hopeless prognosis)
  • Patients younger than 25 years

Exclusion Criteria:

  • - Unlikely to be able to comply with the study procedures, as judged by the investigator.
  • Patients older than 25 years
  • Deciduous teeth
  • Permanent (immature) teeth that can be treated by a "regular" root canal treatment/ apexification
  • Known or suspected current malignancy
  • History of chemotherapy within 5 years prior to study
  • History of radiation in the head and neck region
  • History of other metabolic bone diseases
  • A medical history that makes REP unfavorable
  • Involvement in the planning and conduct of the study
  • Previous enrolment in the present study

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

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: REP with L-PRF
The first REP session will be performed as described by Diogenes et al. (2013). For the second REP-session a venipunction will be performed before the endodontic treatment. 2 to 4 tubes of blood will be collected per tooth. These blood samples will be put into a centrifuge for 12 minutes at 2700 rpm. Fibrin clots will be collected after centrifugation and inserted in the root canal with endodontic pluggers. Medcem Portlandcement (GmbH, Swiss) will be used instead of mineral trioxide aggregate in the second session, to prevent tooth discoloration.
Procedure: REP with L-PRF
Biological: stem and progenitor cells
Active Comparator: REP
A REP will be performed on immature infected permanent teeth, as described in the protocol of Diogenes et al. (2013). Medcem Portlandcement (GmbH, Swiss) will be used instead of mineral trioxide aggregate in the second session, to prevent tooth discoloration.
Procedure: REP

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
Time Frame
Amount of periapical bone healing, measured on intra-oral bidimensional radiographs.
Time Frame: 3 years
3 years

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
Amount of root development or maturogenesis,by measuring:
Time Frame: 3 years
on intra-oral bidimensional radiographs: the increase in root canal wall thickness.
3 years
Amount of root development or maturogenesis,by measuring:
Time Frame: 3 years
on intra-oral bidimensional radiographs: the increase in root canal length.
3 years

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
On conebeam CT (tridimensional measuring): the amount of periapical bone healing, increase in root canal wall thickness and root canal length. (composite)
Time Frame: 3 years
3 years
Patient related outcome, measured by a questionnaire
Time Frame: 3 years
3 years
Patient related outcome, measured by a pain-scale
Time Frame: 3 years
3 years
Microbial diversity in the infected immature root canal
Time Frame: intraoperative
Q-PCR analysis
intraoperative

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.
Universitaire Ziekenhuizen KU Leuven

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: Paul Lambrechts, Prof, Dr, Department of Oral Health Sciences, KU Leuven & Dentistry, University Hospitals Leuven, Belgium

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

  • Diogenes A, Michael AH, Teixeira FB, Hargreaves KM. An update on clinical regenerative endodontics. Endod Top. 2013;28:2-23.

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

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.
September 1, 2014

Primary Completion (Actual)

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.
August 1, 2019

Study Completion (Actual)

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.
October 1, 2020

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).
May 4, 2015

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.
May 7, 2015

First Posted (Estimate)

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.
May 8, 2015

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.
November 4, 2020

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.
November 3, 2020

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.
November 1, 2020

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.
  • S56810 (ML10723) B322201421941

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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