Streptococcus salivarius K12 trials recruiting now

1 registration that name streptococcus salivarius K12 as a study arm and are recruiting or about to, as ClinicalTrials.gov listed them on Oct 20, 2026. Read each listing for its full criteria and current status.

Kymata never assesses eligibility. Each listing names its own criteria; only its study team can say whether someone can join. Trial doses are given under the trial's monitoring and are not a schedule for anyone outside it.

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Status

All 1 registrations

Not yet recruitingNCT07384130

Oral Probiotics for Halitosis in Healthy Adults

  • No phase
  • John Hale
  • About 40 people
  • Starts Mar 15, 2026 (estimated)

In plain words A study of streptococcus salivarius K12 in people 18 to 70, run by John Hale. It plans to enroll about 40 people at 1 site, none in the US.

Who it lists and where

Who the trial lists, as registered

Lists people 18 to 70; healthy volunteers accepted. Conditions: Halitosis.

  • Participants should be otherwise healthy,
  • practice good oral hygiene,
  • 18 - 70 years of age

The exclusion criteria are on the listing.

What it tests, as registered

In this study, a probiotic lozenge formulation containing S. salivarius K12, M18 and prebiotic will be evaluated for its potential to improve bad breath; Placebo

Registered summary

The aim of this study is to evaluate efficacy of a probiotic lozenge containing BLIS M18, BLIS K12 and a prebiotic in healthy adults.

Where, as registered

No US site; New Zealand (1).

ClinicalTrials.gov lists 2 open registrations for this search, including ones where streptococcus salivarius K12 is not a study arm or that are past the 1 we keep. Search them on ClinicalTrials.gov (opens in new tab).

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