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Lacticaseibacillus Rhamnosus CA15 (DSM 33960) Strain as a New Driver in Restoring the Normal Vaginal Microbiota

Lacticaseibacillus Rhamnosus CA15 (DSM 33960) Strain as a New Driver in Restoring the Normal Vaginal Microbiota: a Randomized, Double-blind, Placebo-controlled Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05796921
Enrollment
200
Registered
2023-04-04
Start date
2023-04-10
Completion date
2025-05-06
Last updated
2025-07-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bacterial Vaginosis, Candidosis Vaginal, Urinary Tract Infections

Brief summary

The aim of the present randomized double-blind placebo-controlled trial is to evaluate the efficacy of a probiotic formulation, containing the probiotic strain Lacticaseibacillus rhamnosus CA15 (DSM 33960), in the treatment of vaginal dysbiosis in terms of: (i) modulation of the microbiota (increase of lactobacilli and decrease of pathogens), (ii) reduction of clinical signs of inflammation, (iii) improvement of quality of life.

Detailed description

The aim of the present randomized double-blind placebo-controlled study is to evaluate the ability of the potential probiotic Lacticaseibacillus rhamnosus CA15 (DSM 33960) strain, orally administrated, to balance the vaginal microbiota of women with vaginal dysbiosis. Two hundred women, with signs and symptoms of vaginal dysbiosis, are recruited and randomly allocated to receive oral capsules containing the L. rhamnosus CA15 (DSM 33960) strain or placebo once daily for 10 days. Clinical and microbiological parameters are evaluated in three scheduled appointments: at baseline (T0), 10 days after the start of the treatment (T1), and 30 days after the end of the treatment (T2). In addition, at baseline (T0) and 30 days after the end of the treatment (T2), the quality of life will be evaluated through a quality of life assessment questionnaire.

Interventions

DIETARY_SUPPLEMENTLacticaseibacillus rhamnosus CA15 (DSM 33960) probiotic strain

Patients allocated to the probiotic arm will take the dietary supplement, containing 10 billion of the Lacticaseibacillus rhamnosus CA15 (DSM 33960) probiotic strain, once a day for 10 consecutive days.

DIETARY_SUPPLEMENTplacebo

Patients allocated to placebo arm will take placebo capsules once a day for 10 consecutive days.

Sponsors

ProBioEtna
CollaboratorUNKNOWN
Agnese Maria Chiara Rapisarda
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Intervention model description

randomized double-blind placebo-control

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 48 Years
Healthy volunteers
Yes

Inclusion criteria

* Presence of at least one vaginal sign or symptom (leucorrhoea, burning, itching, subjective vaginal discomfort); * Presence of at least 3 Amsel criteria; * Nugent score greater than 7; * Lactobacillary grade greater than 2 (LBG) (according to Donders classification); * Vaginal dysbiosis based on microbial cell count.

Exclusion criteria

* Presence of sexually transmitted diseases due to Chlamydia, Neisseria gonorrhoeae or Trichomonas vaginalis as well as specific cervico-vaginitis or severe vulvovaginal symptoms related to acute candidiasis; * Clinically evident herpes simplex infection; * Human papillomavirus or human immunodeficiency virus infections; * Use of antibiotics, antifungals, probiotics, or immunosuppressants within the past four weeks; * Use of vaginal contraceptives and any other physiological or pathological condition that could potentially interfere with the results of the study (e.g. pregnancy or breastfeeding, chronic diseases, neoplastic diseases, diabetes, genital tract hemorrhages); * Enrollment in other programs that involve the administration of products that may affect the composition of the vaginal microbiota.

Design outcomes

Primary

MeasureTime frameDescription
SymptomatologyBaseline; end of the treatment (10 days); wash-out (30 days)Change of signs (leucorrhoea, vulvovaginal erythema/edema) and symptoms (vulvar discomfort, burning, itching) associated to vaginal dysbiosis. Clinical signs and symptoms will be evaluated through a severity score on a scale of 0 (absent or normal) to 3 (severe).
SignBaseline; end of the treatment (10 days); wash-out (30 days)Absence of inflammation according to Amsel's criteria and Nugent score between 0 and 3
MicrobiotaBaseline; end of the treatment (10 days); wash-out (30 days)Change in the composition of the vaginal microbiota (significant reduction of pathogens responsible for vaginal dysbiosis and concomitant increase in lactobacilli)

Secondary

MeasureTime frameDescription
Well-beingBaseline and wash-out (30 days)Change in the quality of life, based on the Short Form-36 (SF-36) questionnaire. Values ranging from 0 to 100 indicate worst and better outcomes, respectively.

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026