Condition
Periodontitis Stage IV clinical trials and research
As of November 12, 2026, Find a Trial lists 2 Periodontitis Stage IV clinical trials that are recruiting, at sites in 2 countries (most in Germany (1), Romania (1)). 1 was first registered in the last 30 days. Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 2Clinical trials
- 1New in 30 days
- 2Countries
All recruiting trials (2)
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Understanding links between severe periodontitis and gut bacteria and barrier function
This observational study tests whether severe periodontitis is related to small intestinal bacterial overgrowth (SIBO) and changes in gut barrier biomarkers in adults.
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Probiotics with or without vitamin B12 added to non-surgical treatment for advanced periodontitis
This study will see if taking a probiotic lozenge alone or together with vitamin B12 during non-surgical periodontal treatment changes the oral microbiome and helps adults with Stage III or IV periodontitis.
Related topics
Quick answers
How many Periodontitis Stage IV clinical trials are recruiting right now?
2, as of November 12, 2026. 1 of them was first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in Germany (1 trial), Romania (1 trial). Each study page lists its sites and which ones are recruiting.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.