Clinical trial Recruiting at 1 site Interventional Ages 30 to 50

Omega-3s and low-dose aspirin for smokers with stage III periodontitis

Official title: Clinical and Biochemical Evaluation of the Effect of Omega-3 Fatty Acids Plus Low-Dose Aspirin as an Adjunct to Non-Surgical Periodontal Therapy in Smoker Patients With Stage III Periodontitis: A Randomized Double-Blind Placebo-Controlled Clinical Trial

Run by Al-Azhar University · NCT07673185 · Data updated 2026-11-12

In adults who smoke and have stage III periodontitis, this study tests whether adding omega-3 fatty acids and a small amount of aspirin to standard cleaning helps improve gum health.

Quick facts

Study typeInterventional
Ages30 Years to 50 Years
SexAll
Enrollment40 (estimated)
SponsorAl-Azhar University
Academic / other
Locations1 site (Cairo)
StatusRecruiting
StartedJanuary 15, 2025
Main results expectedJuly 30, 2026
Study endsOctober 30, 2026
Registry record updatedJuly 8, 2026
Trial IDNCT07673185 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Smokers aged 30-50 with diagnosed stage III periodontitis, PPD ≥5 mm, CAL ≥5 mm, and at least 20 natural teeth who can provide informed consent.

Probably not a fit

Patients without improvements in periodontal measurements or who do not respond biochemically may not experience a benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, double-blind, placebo-controlled trial evaluating whether omega-3 fatty acids (EPA and DHA) plus low-dose aspirin as an adjunct to scaling and root planing can improve periodontal outcomes. Participants are smokers aged 30-50 with stage III periodontitis and at least 20 teeth, assigned to receive either the omega-3/aspirin combination or placebo after SRP, with follow-up at 3 and 6 months. Primary endpoints include changes in probing pocket depth and clinical attachment level; secondary endpoints include inflammatory biomarkers such as IL-1β in gingival crevicular fluid and other clinical parameters. The study measures both clinical and biochemical responses to host-modulation therapy in this high-risk population.

Why it matters

Potential benefit: If successful, the approach could offer a new adjunctive strategy to improve periodontal healing in smokers.

How similar studies have gone: Previous work suggests omega-3 fatty acids may have anti-inflammatory benefits in periodontal disease, but results vary and this specific combination with low-dose aspirin in smokers is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* \- Male or female smokers aged 30 to 50 years.
* Diagnosed with Stage III periodontitis according to the 2017 World Workshop classification.
* Probing pocket depth (PPD) ≥ 5 mm.
* Clinical attachment loss (CAL) ≥ 5 mm.
* Presence of at least 20 natural teeth.
* Willing and able to provide written informed consent.

Exclusion Criteria:

* \- Systemic diseases affecting periodontal health.
* Pregnancy or lactation.
* Periodontal treatment within the previous 6 months.
* Use of antibiotics or anti-inflammatory drugs within the previous 6 months.
* Allergy or hypersensitivity to omega-3 fatty acids or aspirin.
* Long-term anticoagulant therapy.
* History of gastric ulcer or bleeding disorders.
* Participation in another clinical trial within the previous 3 month

Where it's running

  • Faculty of Dental Medicine for Girls, Al-Azhar University
    Cairo, Egypt
    Recruiting

Study contacts

  • Principal investigator: naglaa M EL wakeel, professor — Faculty of Dental Medicine for Girls, Al-Azhar University
  • Study coordinator: ALAA hesham mah,oud, BDS, MSc Candidate
  • Email: alaahesham419@gmail.com
  • Phone: +201146816128

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.