ClinicalTrials.gg
CompletedNCT03262402Updated Mar 27, 2020

Effects of Periodontal Treatment on HIV-infected Patients

An interventional study of Basic periodontal treatment in HIV/AIDS and Periodontal Diseases, sponsored by University of Sao Paulo. Completed at 1 site in Brazil. Open to participants aged 36 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-03-27.

Sponsored by University of Sao Paulo · Not applicable, Interventional, and Treatment

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Not applicable
Study type
Interventional
Enrollment
22
Allocation
Non-randomized
Ages
36 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 57 studies in Acquired Immunodeficiency Syndrome with a site in Brazil — 7 open to participants now, 10 under way, 4 of them phase 3. Acquired Immunodeficiency Syndrome · Brazil.

Enrollment
40th of 42
22 · median 132
Started
2017
with 3 others
No phase
11 of 57
none open now
Registered
35th of 57
by date
Lead sponsor
2 of 57
University of Sao Paulo

Among the 57 studies in Acquired Immunodeficiency Syndrome with a site in Brazil, this one is the 40th largest by enrollment of the 42 interventional ones that give a count, is one of 4 that started in 2017, is one of 11 with no phase, and was the 35th registered.

Acquired Immunodeficiency Syndrome

3,037 studies on the registry are indexed under Acquired Immunodeficiency Syndrome; 307 are open to participants now.

Browse Acquired Immunodeficiency Syndrome studies →

Open to participants now

7 of the 57 studies in Acquired Immunodeficiency Syndrome with a site in Brazil are open now. Recruiting first, the newest first:

2 more — sign in →

All 7 open studies →

A study can be open while its sites in Brazil have not opened yet or have stopped. Only those recruiting at a site in Brazil →

Who these studies take

Of the 198 Acquired Immunodeficiency Syndrome studies recruiting now, 118 (60%) set no upper age limit and 67 (34%) stop at 75 or younger; 43 take children under 18; 68 take healthy volunteers.

This study: 36 Years and older · all sexes · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 57 studies in Acquired Immunodeficiency Syndrome with a site in Brazil, or all of them as a file.
02

Study summary

Periodontal diseases, such as chronic periodontitis (CP), frequently occur in immunosuppressed patients, including HIV-infected patients. The immunosuppression resulted by the HIV infection can justify the high frequency and the difficult in controlling the CP in this group of patients, raising the possibility of additional factors associated to the development of CP in HIV patients. The aim of this study is to determine factors that can be involved in the CP pathogenesis in HIV patients, including Candida spp presence, and biomarkers involved on the inflammatory response against the microorganisms.

Read the detailed description

Investigators will develop one quasi-experimental study in HIV patients (N=15) and non-HIV patients (N=15) presenting CP. Candida spp count and salivary and gingival crevicular fluid concentrations of histatin, lactoferrin, interleukin-1β, interleukin-6, and tumor necrosis factor-α will be determined at baseline, 30 and 90 days after the periodontal treatment. In order to minimize the influence of the immunosuppressive condition, patients have to present CD4 T lymphocytes \< 200cel/mm3 blood count, non-detectable viral load and the same protocol of antiretroviral therapy. Additionally, investigators intend to determine the immunophenotypic profile of the gingival tissue through immunohistochemical analysis. This study was approved by the Institutional Review Board of the School of Dentistry of Ribeirão Preto (CAAE: 50004415.1.0000.5419), and all patients need to provide written informed consent.

03

Conditions studied

  • HIV/AIDS
  • Periodontal Diseases

Keywords

  • Chronic periodontitis
  • Candida spp
  • Histatin-5
  • Lactoferrin
04

Who can participate

Ages eligible
36 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • General for both groups/arms: Patients with at least 15 teeth; with chronic periodontitis (at least 2 sites with pocket probing depth ≥ 5mm and clinical attachment loss >4mm); no use of antibiotics for the 6 months previous to study enrolment.
  • For -infected group: CD4 T lymphocytes \< 200 cel/mm3, stable HAART for the 6 months previous to study enrollment.

Exclusion criteria

Exclusion Criteria:

  • General for both groups/arms: periodontal treatment and use of antibiotics for the 6 months previous to study enrollment; smoking; complex systemic conditions.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
22 participants (actual)

Study arms

  • Experimental
    HIV-infected group

    Patients will be treated for their chronic periodontitis (basic periodontal treatment) and samples of gingival crevicular fluid and saliva will be collected at baseline, 30 days and 60 days after the periodontal treatment for the study analysis.

    Procedure: Basic periodontal treatment

  • Active comparator
    Non-HIV infected group

    Patients will be treated for their chronic periodontitis (basic periodontal treatment) and samples of gingival crevicular fluid and saliva will be collected at baseline, 30 days and 60 days after the periodontal treatment for the study analysis.

    Procedure: Basic periodontal treatment

Interventions

  • ProcedureBasic periodontal treatment

    Basic periodontal treatment consists of scaling and root planing performed with manual curettes or ultrasonic instruments.

    Also known as: Non-surgical periodontal treatment

06

What researchers measure

Primary outcomes

  1. Change in clinical signs of chronic periodontitis.

    Clinical parameters of the periodontal diseases: Dental biofilm index and bleeding on probing (BOP) measured in percentage associated to pocket probing depth (PPD) and clinical attachment loss (CAL) measured in millimeters will be combined to report the effect of periodontal treatment on the chronic periodontitis in percentage of sites with no periodontal diseases signs.

    Time frame: Baseline, 30 days and 90 days.

Secondary outcomes

  1. Change in Candida spp carriage.

    Number of Candida spp colonies on culture plates.

    Time frame: Baseline, 30 days and 90 days.

  2. Change in salivary biomarkers

    Concentrations of histatin, lactoferrin and inflammatory cytokines in saliva and gingival crevicular fluid in pg/mL.

    Time frame: Baseline, 30 days and 90 days.

  3. Change in bacterial microbiota

    Pyrosequencing characterization of the bacterial microbiota

    Time frame: Baseline, 30 days and 90 days.

07

Study locations

1 site
  • School of Dentistry of Ribeirão Preto, University of São Paulo
    Ribeirão Preto, São Paulo 14040-904, Brazil
08

References and documents

Publications

  • Lourenco AG, Ribeiro AERA, Nakao C, Motta ACF, Antonio LGL, Machado AA, Komesu MC. Oral Candida spp carriage and periodontal diseases in HIV-infected patients in Ribeirao Preto, Brazil. Rev Inst Med Trop Sao Paulo. 2017 Jun 1;59:e29. doi: 10.1590/S1678-9946201759029. PubMed 28591257 ↗
  • Lourenco AG, Rodrigues Alves Ribeiro AE, Nakao C, Fragoso Motta AC, Machado AA, Komesu MC. Influence of antiretroviral therapy and periodontal disease on human salivary beta-defensin 2 in patients infected with HIV. Curr HIV Res. 2014;12(1):44-9. doi: 10.2174/1570162x12666140407125120. PubMed 24720483 ↗

Individual participant data

Plan to share: Yes — Individual participant data of all primary and secondary outcomes will be made available.

Supporting information: Study protocol

Time frame: Data will be available within 3 months of study completion.

Access criteria: Data access criteria will be reviewed by the an external independent review panel.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jul 2017 to primary completion in Aug 2018, 13 months.

Of 642 non-industry interventional studies with no phase under Acquired Immunodeficiency Syndrome, half reached primary completion within 30 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 45. This study's 13 months is below that.

Counting every sponsor, half of 648 studies reached it within 29 months; a quarter within 17 and three quarters within 45.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 19, 2017
First posted
Aug 25, 2017
StartActual
Jul 2, 2017
Primary completionActual
Aug 2, 2018
CompletionActual
Apr 8, 2019
Last update
Mar 27, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 27, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03262402
Responsible party
Ana Carolina Fragoso Motta, DDS, PhD (Professor of Oral Diagnosis, University of Sao Paulo) — Principal investigator
First posted
Aug 25, 2017
Start date
Jul 2, 2017
Primary completion
Aug 2, 2018
Completion
Apr 8, 2019
Last update
Mar 27, 2020

Study contacts

Ana Carolina F Motta, DDS, PhD
principal investigator · University of Sao Paulo

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion