CClinicalTrials.gg
Status unknownNCT02283736probioticUpdated Jun 15, 2016

Efficacy of Oral Probiotic Administration in Patients With Chronic Periodontitis

A Phase 2 interventional study of Lactobacillus rhamnosus SP1 and Talc powder in -Chronic Periodontitis, sponsored by Jorge Gamonal. Status unknown at 1 site in Chile. Open to participants aged 35 Years and older. Per ClinicalTrials.gov, last updated 2016-06-15.

Sponsored by Jorge Gamonal · Phase 2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jun 2016), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
36
Allocation
Randomized
Ages
35 Years and older
Sex
All
01

Study summary

The aim of this randomized placebo- controlled clinical trial is to evaluate the effects of Lactobacillus rhamnosus SP1- containing probiotic tablets as an adjunct to scaling and root planning (SRP).

Material and methods: Thirty six chronic periodontitis patients will be recruited and monitored clinically, immunologically and microbiologically at baseline, 3 and 6 months after therapy. All patients will receive scaling and root planning and randomly will be assigned over an experimental (SRP + probiotic, n=18) or control (SRP + placebo, n=18) group. The tablets will be used once per day during 3 months.

02

Conditions studied

  • -Chronic Periodontitis

Keywords

  • Chronic periodontitis
  • Probiotics
  • Non- surgical treatment
03

In context

Periodontitis

1,635 studies on the registry are indexed under Periodontitis; 327 are open to participants now.

This study's enrollment of 36 is below the median of 45 across 1,191 interventional studies indexed under Periodontitis.

Browse Periodontitis studies →

Lead sponsor

Jorge Gamonal is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
35 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • ≥14 natural teeth, excluding third molars
  • ≥10 posterior teeth
  • ≥35 years old
  • ≥ 5 teeth with periodontal sites with probing depths ≥5mm, clinical attachment loss ≥3mm
  • Bleeding on probing ≥20% of sites
  • Extensive bone loss determined radiographically

Exclusion criteria

Exclusion Criteria:

  • Periodontal treatment before the time of examination
  • Systemic illness
  • Pregnancy
  • Anticoagulant, antibiotics and non- steroid anti- inflammatory therapy in the 6-month period before the study
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
36 participants (actual)

Study arms

  • Experimental
    Periodontal treatment, Probitic

    Periodontal treatment (scaling and root planning) and one tablet containing Lactobacillus rhamnosus SP1 per day during 3 months.

    Other: Lactobacillus rhamnosus SP1 · Procedure: Periodontal treatment

  • Placebo comparator
    Periodontal treatment, talc powder tab

    Periodontal treatment (scaling and root planning) and one tablet containing talc powder per day during 3 months

    Other: Talc powder · Procedure: Periodontal treatment

Interventions

  • OtherLactobacillus rhamnosus SP1

    Tablet containing Lactobacillus rhamnosus SP1

  • OtherTalc powder

    Tablet containing talc powder

  • ProcedurePeriodontal treatment

    Scaling and root planning

06

What researchers measure

Primary outcomes

  1. Differences of at least 1mm between groups for clinical attachment level changes

    Time frame: baseline, 3, 6 months

Secondary outcomes

  1. Differences between groups for probing depth changes

    Time frame: baseline, 3, 6 month

  2. Differences between groups for bleeding on probing changes

    Time frame: baseline, 3, 6 months

  3. Differences between groups for plaque index changes

    Time frame: baseline, 3, 6 months

  4. Differences between groups for levels of Interleukin (IL)-17, IL-21, Transforming Growth Factor (TGF)- beta, IL-10, RANKL changes in gingival crevicular fluid

    Time frame: baseline, 3, 6 months

  5. Differences between groups for levels of periodontal pathogens changes

    Time frame: baseline, 3, 6 months

07

Study locations

1 site
  • Faculty of Dentistry of University of Chile
    Santiago, Chile
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 15, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02283736
Lead sponsor
Jorge Gamonal
Responsible party
Jorge Gamonal (Professor, University of Chile) — Sponsor-investigator
First posted
Nov 5, 2014
Start date
Jun 2014
Primary completion
Jun 2015
Completion
Dec 2016 (estimated)
Last update
Jun 15, 2016

Study contacts

Jorge Gamonal, Professor
principal investigator · Faculty of Dentistry of University of Chile

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jun 2016. You cannot join it, but the record below documents what was studied.

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