Efficacy of Probiotic Lactobacillus Crispatus M247 in Promoting High-risk Human Papillomavirus (HR-HPV) Infection Clearance and Modifying Vaginal Microbiota

NCT ID: NCT06802809

Last Updated: 2025-06-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-01-05

Study Completion Date

2024-12-30

Brief Summary

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This clinical trial evaluates the efficacy of the probiotic strain Lactobacillus crispatus M247 in promoting the clearance of genital high-risk human papillomavirus (HR-HPV) infection and restoring the balance of the vaginal microbiota. The study adopts a multicenter, randomized, single-blind, longitudinal, prospective design involving HR-HPV-positive patients. Primary outcomes include HR-HPV clearance rates and microbiota composition changes.

Detailed Description

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This study investigates the potential benefits of Lactobacillus crispatus M247, a probiotic strain with proven ability to promote vaginal health, in the management of HR-HPV infections. Lactobacillus crispatus M247 has demonstrated superior probiotic properties, including the ability to produce lactic acid and hydrogen peroxide, which contribute to maintaining a stable vaginal microbiota and potentially inhibiting HR-HPV persistence.

Participants will be randomized to receive either Lactobacillus crispatus M247 or a placebo over a specified study period. The primary aim is to evaluate the probiotic's efficacy in enhancing HR-HPV clearance rates and restoring a balanced vaginal microbiota. Secondary objectives include assessing changes in cervical cytology and participant-reported outcomes on vaginal health. By focusing exclusively on the role of Lactobacillus crispatus M247, the study seeks to establish its clinical relevance in HR-HPV management and its potential as a therapeutic intervention.

Conditions

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Human Papillomavirus Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Experimental, multicenter, randomized, placebo-cntrolled, longitudinal, prospective, single-blind, parallel-group study.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants
Single-blind design (participants unaware of their group allocation).

Study Groups

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Probiotic supplement Lactobacillus crispatus M247 group

Participants in this group will receive probiotic supplement Lactobacillus crispatus M247 (Crispact®) in stick form, administered orally at a dose of one stick per day for 4 months. Each stick contains 20 billion CFU of L. crispatus M247.

Group Type EXPERIMENTAL

Lactobacillus crispatus M247 (Crispact®)

Intervention Type DIETARY_SUPPLEMENT

Crispact® is a probiotic food supplement containing Lactobacillus crispatus M247.

Control Group

Participants in the control group will receive a placebo identical in appearance and packaging to the experimental product, administered orally at a dose of one stick per day for 4 months.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

The placebo does not contain the active probiotic strain and consists of inactive excipients.

Interventions

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Lactobacillus crispatus M247 (Crispact®)

Crispact® is a probiotic food supplement containing Lactobacillus crispatus M247.

Intervention Type DIETARY_SUPPLEMENT

Placebo

The placebo does not contain the active probiotic strain and consists of inactive excipients.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Women aged 18-69 years.
* First diagnosis of HR-HPV infection via DNA-HPV screening.
* Cytology results showing ASC-US or LSIL.
* Negative colposcopy or biopsy (absence of lesions).
* Ability to provide written informed consent.

Exclusion Criteria

* Prior HPV vaccination.
* History of cervical treatments for pre-neoplastic pathology.
* Cytology showing HSIL (High-Grade Squamous Intraepithelial Lesion) requiring treatment.
* Current treatment with antibiotics, immunomodulatory, or immunosuppressive therapies.
* Diagnosed immune system or neoplastic diseases requiring chemotherapy.
* Pregnancy, lactation, or planning to become pregnant within 6 months.
* Known hypersensitivity to product components.
Minimum Eligible Age

18 Years

Maximum Eligible Age

69 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Università degli Studi dell'Insubria

OTHER

Sponsor Role collaborator

Liaquat University of Medical & Health Sciences

OTHER

Sponsor Role lead

Responsible Party

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Dr. Amjad Khan

Professor of Clinical Biochemistry and Experimental Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Azienda Ospedaliero Universitaria Policlinico "G. Rodolico-San Marco"

Catania, , Italy

Site Status

Nuovo Ospedale di Lentini

Lentini, , Italy

Site Status

Azienda Ospedaliera Universitaria Policlinico "Paolo Giaccone" di Palermo

Palermo, , Italy

Site Status

Countries

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Italy

Other Identifiers

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Protocol n° 774/18.10.2021/AK

Identifier Type: -

Identifier Source: org_study_id

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