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RecruitingNCT06486012APDT-T2DUpdated Aug 6, 2025

Regular Use of aPDT in the Management and Prevention of Periodontitis Symptoms in Diabetic Patients

An interventional study of Lumoral Treatment and Standard oral hygiene in Diabetes Mellitus, Type 2, Pre-diabetes and Periodontal Diseases, sponsored by Wellbeing Services County of Pirkanmaa. Recruiting at 1 site in Finland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-08-06.

Sponsored by Wellbeing Services County of Pirkanmaa · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Jan 2025; still recruiting 1 year 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is an investigator-initiated clinical study to establish easy referral and access for diabetic patients from primary health care to oral health care facilities for preventive oral care, periodontal assessment, and treatment, and to investigate the impact of regular home use of aPDT medical device on plaque control and gingival health, when used as an adjunct treatment to standard oral hygiene, and the effect on diabetes control in patients with the risk of periodontal disease, compared to a standard home care oral hygiene regimen.

Read the detailed description

In earlier studies, a bi-directional link between diabetes and periodontitis has been established: high glucose levels increase the risk of periodontitis while glycemic control is likely to worsen with untreated periodontitis. The treatment of diabetic patients should include easy access from diabetes clinics to oral health care facilities to reduce the potential risks of periodontal disease, or deterioration of existing symptoms of periodontal disease. As part of a holistic approach to healthcare and its resources, more attention needs to be paid to the early detection, and prevention of oral diseases in diabetic patients. Novel testing and treatment methods can play a key role, and a good collaboration between diabetes and oral health care facilities is essential.

The aMMP-8 test can be used to assess the risk of periodontal disease. If the test is positive, latent MMP-8 is activated, so the inflammatory cascade is activated and provides real-time information. The test can also be used to monitor the success of the treatment outcome and can be used to determine the interval between maintenance treatments. In addition, patients' oral self-care should be improved, as most of the work in preventing oral diseases is done at home. The home use of photodynamic dual light therapy (aPDT) can provide additional benefits and also engage patients not only in self-care but also in the whole treatment process. Preliminary studies show that aPDT improves the treatment and maintenance outcomes, and potentially reduces the risk of periodontal disease in addition to self-care.

The combination of easy access to treatment could have wide benefits individually, and also at the community level, including the possibility of building a cost-effective preventive care pathway for patients with prediabetes, type 2 diabetes, and periodontitis, and identifying the risks of both diseases and treating already detected diseases early and in a timely manner.

02

Conditions studied

  • Diabetes Mellitus, Type 2
  • Pre-diabetes
  • Periodontal Diseases
  • Periodontitis

Keywords

  • periodontitis
  • diabetes
  • T2D
  • aPDT
  • aMMP-8
03

In context

Diabetes Mellitus, Type 2

9,357 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,318 are open to participants now.

This study's planned enrollment of 150 is above the median of 80 across 7,523 interventional studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

Wellbeing Services County of Pirkanmaa is the lead sponsor of 3 studies on the registry; 3 are open to participants now.

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

04

Who can participate

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

Inclusion criteria

  • Diabetic patient treated at community health care;
  • At least 18 years old;
  • Presence of ≥20 teeth;
  • Agreement to participate in the study, and to sign a written consent form;
  • Ability to cooperate with the treatment protocol according to coordinator investigator's assessment.

Exclusion criteria

Exclusion Criteria:

  • Oral thrush;
  • Known sensitivity to near-infrared or antibacterial blue light.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
150 participants (estimated)

Study arms

  • Experimental
    Study group

    Standard oral hygiene and home-use of Lumoral Treatment aPDT device.

    Device: Lumoral Treatment · Other: Standard oral hygiene

  • Active comparator
    Control group

    Standard oral hygiene

    Other: Standard oral hygiene

Interventions

  • DeviceLumoral Treatment

    Photodynamic antibacterial dual-light device home-use with a marker substance

  • OtherStandard oral hygiene

    Standard oral hygiene performed at home

06

What researchers measure

Primary outcomes

  1. Bleeding on probing (BOP)

    Change in bleeding on probing (BOP) A full-mouth assessment at six sites per tooth (mesiobuccal, buccal, distobuccal, mesiolingual, lingual, distolingual) Gingival bleeding is considered as positive if bleeding occurs within 15 seconds after gentle probing with a probe at the sulcus Dichotomous scoring to each site of the tooth as bleeding "1 present" and "0 absent" BOP is reported as the percentage (%) of sites with positive findings Calculation formula: number of bleeding sites/ 6 times number of teeth

    Time frame: 12 months

Secondary outcomes

  1. Visual Plaque Index (VPI)

    Assessment of six index teeth, measured at four sites per tooth: * Dichotomous scoring to each site of the tooth as plaque "1 present" and "0 absent" * VPI reported as the percentage (%) of sites with plaque * Calculation formula: number of sites with plaque/ 4 times number of teeth

    Time frame: 6 months

  2. Visual Plaque Index (VPI)

    Assessment of six index teeth, measured at four sites per tooth: * Dichotomous scoring to each site of the tooth as plaque "1 present" and "0 absent" * VPI reported as the percentage (%) of sites with plaque * Calculation formula: number of sites with plaque/ 4 times number of teeth

    Time frame: 12 months

  3. Periodontal Pocket Depth (PPD)

    A full-mouth assessment, measured at six sites per tooth. Assessed from the base of the pocket to the gingival margin (mm)

    Time frame: 6 months

  4. Periodontal Pocket Depth (PPD)

    A full-mouth assessment, measured at six sites per tooth. Assessed from the base of the pocket to the gingival margin (mm)

    Time frame: 12 months

  5. Clinical Attachment Level (CAL)

    A full-mouth assessment, measured at six sites per tooth Assessed as the distance from the cementoenamel junction (CEJ) to the bottom of the periodontal pocket (mm) To calculate CAL, two measurements are needed: distance from the gingival margin to the CEJ and PPD; in recession: PPD + gingival margin to the CEJ; in tissue overgrowth: PPD - gingival margin to the CEJ

    Time frame: 6 months

  6. Clinical Attachment Level (CAL)

    A full-mouth assessment, measured at six sites per tooth Assessed as the distance from the cementoenamel junction (CEJ) to the bottom of the periodontal pocket (mm) To calculate CAL, two measurements are needed: distance from the gingival margin to the CEJ and PPD; in recession: PPD + gingival margin to the CEJ; in tissue overgrowth: PPD - gingival margin to the CEJ

    Time frame: 12 months

  7. Active matrix metalloproteinase 8 (aMMP-8)

    The oral rinse fluid sample collection and the aMMP-8 marker analysis will be performed using Periosafe test (Dentognostics GmbH) according to the manufacturer's instructions.

    Time frame: 6 months

  8. Active matrix metalloproteinase 8 (aMMP-8)

    The oral rinse fluid sample collection and the aMMP-8 marker analysis will be performed using Periosafe test (Dentognostics GmbH) according to the manufacturer's instructions.

    Time frame: 12 months

  9. Periodontopathic bacteria

    Quantification of periodontopathic bacteria by 16S rRNA sequencing analysis. Microbiological samples can be collected using Iso Taper Paper Points, size-20 (VDW GmbH) from selected gingival/periodontal pockets with maximum initial probing depth. The paper points can be placed into sterile, small-aliquot containers, and immediately stored at -20°C until analysis

    Time frame: 6 months

  10. Periodontopathic bacteria

    Quantification of periodontopathic bacteria by 16S rRNA sequencing analysis. Microbiological samples can be collected using Iso Taper Paper Points, size-20 (VDW GmbH) from selected gingival/periodontal pockets with maximum initial probing depth. The paper points can be placed into sterile, small-aliquot containers, and immediately stored at -20°C until analysis

    Time frame: 12 months

  11. Metabolomics

    Nuclear magnetic resonance (NMR) -based metabolomics analysis for biomarkers that include 39 clinically validated routine markers to explore connections between metabolites and an individual's health status.

    Time frame: 12 months

  12. hsCRP

    Diagnosis and monitoring of latent inflammation. High-sensitivity CRP tests can determine slight changes to CRP levels within the CRP normal range, which would otherwise be missed by standard tests. Hs-CRP tests can help identify more specific issues and chronic inflammation over the long term.

    Time frame: 12 months

  13. LPS

    Gram-negative bacteria-derived lipopolysaccharides (LPS) are known to be associated with various negative health effects. Activity of serum lipopolysaccharides will be measured with Limulus Amebocyte Lysate assay from 1:5 diluted serum samples at 405 nm as an end-point assay

    Time frame: 12 months

07

Study locations

1 of 1 sites recruiting
  • Wellbeing Services of County Pirkanmaa
    Tampere, Pirkanmaa 33520, Finland
    Recruiting
08

References and documents

Publications

  • Ahmad R, Haque M. Oral Health Messiers: Diabetes Mellitus Relevance. Diabetes Metab Syndr Obes. 2021 Jul 1;14:3001-3015. doi: 10.2147/DMSO.S318972. eCollection 2021. PubMed 34234496 ↗
  • Choi SE, Sima C, Pandya A. Impact of Treating Oral Disease on Preventing Vascular Diseases: A Model-Based Cost-effectiveness Analysis of Periodontal Treatment Among Patients With Type 2 Diabetes. Diabetes Care. 2020 Mar;43(3):563-571. doi: 10.2337/dc19-1201. Epub 2019 Dec 27. PubMed 31882408 ↗
  • Gasner NS, Schure RS. Periodontal Disease. 2025 May 12. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK554590/ PubMed 32119477 ↗
  • Kononen E, Gursoy M, Gursoy UK. Periodontitis: A Multifaceted Disease of Tooth-Supporting Tissues. J Clin Med. 2019 Jul 31;8(8):1135. doi: 10.3390/jcm8081135. PubMed 31370168 ↗
  • Nazir MA. Prevalence of periodontal disease, its association with systemic diseases and prevention. Int J Health Sci (Qassim). 2017 Apr-Jun;11(2):72-80. PubMed 28539867 ↗
  • Liccardo D, Cannavo A, Spagnuolo G, Ferrara N, Cittadini A, Rengo C, Rengo G. Periodontal Disease: A Risk Factor for Diabetes and Cardiovascular Disease. Int J Mol Sci. 2019 Mar 20;20(6):1414. doi: 10.3390/ijms20061414. PubMed 30897827 ↗
  • Pakarinen S, Saarela RKT, Valimaa H, Heikkinen AM, Kankuri E, Noponen M, Alapulli H, Tervahartiala T, Raisanen IT, Sorsa T, Patila T. Home-Applied Dual-Light Photodynamic Therapy in the Treatment of Stable Chronic Periodontitis (HOPE-CP)-Three-Month Interim Results. Dent J (Basel). 2022 Nov 2;10(11):206. doi: 10.3390/dj10110206. PubMed 36354651 ↗
  • Salminen A, Maatta AM, Mantyla P, Leskela J, Pietiainen M, Buhlin K, Suominen AL, Paju S, Sattler W, Sinisalo J, Pussinen PJ. Systemic Metabolic Signatures of Oral Diseases. J Dent Res. 2024 Jan;103(1):13-21. doi: 10.1177/00220345231203562. Epub 2023 Nov 15. PubMed 37968796 ↗

Related links

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 6, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06486012
Lead sponsor
Wellbeing Services County of Pirkanmaa
Collaborators
Tampere University, University of Helsinki, Mehiläinen Health Care Services
Responsible party
Sponsor
First posted
Jul 3, 2024
Start date
Jan 23, 2025
Primary completion
Dec 2027 (estimated)
Completion
Dec 2028 (estimated)
Last update
Aug 6, 2025

Study contacts

Miia Ehrnrooth
Contact
miia.ehrnrooth@mehilainen.fi
+358406615307
Mikko Kylmänen, Master of Health Care
Contact
mikko.kylmanen@gmail.com
Anna Maria Heikkinen, Professor
principal investigator · Wellbeing Services of County Pirkanmaa

Oversight

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

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