Vaginal and Rectal Colonization of Lactobacillus Crispatus NTCVAG04 Following Oral Administration in Patients With History of Vaginitis/Vaginosis

The purpose of this study is to identify the presence of L. Crispatus in the rectum and vagina after oral administration of BIOVAGINIL by searching for specific DNA of the bacterial strain, to evaluate the tolerability of BIOVAGINIL and evaluate the minimum duration of the oral administration necessary to determine the appearance of L. Crispatus.

Study Overview

• Status: Completed
• Conditions: Vaginitis; Vaginosis
• Intervention / Treatment: Dietary supplement: BIOVAGINIL

Detailed Description

In fertile, premenopausal healthy women, the vaginal ecosystem is dominated by Lactobacillus spp., but a diverse array of other bacteria can be present in much lower numbers. Over 120 species of Lactobacillus have been identified and more than 20 species have been detected in the vagina. Molecular-based techniques have demonstrated that healthy vaginal microflora does not contain high numbers of many different species of Lactobacillus. Rather, one or two lactobacilli from a range of three or four species (mainly L. crispatus and L. iners but also L. jensenii and L. gasseri) are dominant, whereas other species are rare, lower in titer and tend to be novel phylotypes.

Vaginitis is defined as a spectrum of conditions that cause vaginal and sometimes vulvar symptoms such as itching, burning, irritation, odor and vaginal discharge. Infection is the most common cause of vaginitis, including bacterial vaginosis (BV), vulvovaginal candidiasis and trichomoniasis. Bacterial vaginosis is a very common microbiological disturbance of the vaginal environment in adult women and is characterized by a depletion of lactobacilli in favor of an overgrowth of anaerobic bacteria. Colonization by L. crispatus or L. jensenii is associated with a lower frequency of bacterial vaginosis, and L. crispatus is strongly correlated with the absence of BV, low pH, negative whiff test, absence of clue cells and normal vaginal discharge.

Although antibiotic treatment of BV is strongly recommended, attempts at improving the efficacy of therapy are still a matter of debate. In fact, antimicrobial treatment of urogenital infections is not always effective, and problems remain due to bacterial and yeast resistance, recurrent infections and side effects. Alternative remedies are thus of interest and many studies have provided evidence of the beneficial functions of the human microbiota and prompted the selection of bacterial strains with health-promoting capacities for the treatment of conditions in which the microbiota, or its optimal functioning, is altered. The rationale for the use of probiotics in women is based on the genitourinary regulatory role played by the healthy vaginal microbiota and the need for restoration of this microbial ecosystem after insult.

Until today, the most common way of delivering probiotic lactobacilli was the administration of vaginal suppositories.However, this route will no longer be acceptable as products containing probiotics (live microorganisms) are not admissible as medical devices as per European Medical Device Regulation (EU) 2017/245. Oral administration therefore represents an alternative and more patient-friendly concept for the restitution of the normal vaginal microbiota. Indeed, several studies demonstrated the ability of rectal bacteria to move from the intestinal tract to the vagina. Moreover, it was recently demonstrated that the administration of a yoghurt containing Lactobacillus spp. including L.. crispatus in addition to antibiotic treatment may improve recovery rate and symptoms of BV and is well tolerated.

It is therefore reasonable to suppose that the oral administration of a food supplement containing an adequate concentration of a strain of L. crispatus, one of the predominant species, in the vaginal microbiota in asymptomatic women, may promote the re-colonization of the vaginal environment. Since this species is so representative and crucial in maintaining a healthy vaginal environment, we believe that it is of utter importance to understand its activity to fully disclose its potential.

The aim of this pilot study is to investigate the presence of Lactobacillus crispatus NTCVAG04 in the vagina after oral administration of BIOVAGINIL, a food supplement, as a precondition for the subsequent evaluation of the ability of NTCVAG04 to rebalance the local microbiota and promote healing and/or prevention of recurrences of vaginitis/vaginosis.

• Study Type: Interventional
• Enrollment (Actual): 20
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Italy
  • SI
    • Siena, SI, Italy, 53100
      • Azienda Ospedaliera Universitaria di Siena - Unità Operativa Semplice Ginecologia Endocrinologica Centro Sterilità di Coppia

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• Female
• Age > 18 years
• History of vaginitis/vaginosis
• Informed consent

Exclusion Criteria:

• Pregnancy
• Breastfeeding
• Need for treatment of vaginitis/vaginosis with any antibiotic drug

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Test Arm - Biovaginil 480 mg capsules; All patients will be treated with 1 capsule/day of BIOVAGINIL for two treatment cycles of 14 days each.	Dietary supplement: BIOVAGINIL; Biovaginil is a notified food supplement formulated as 480 mg capsules. Each capsule contains Lactobacillus crispatus NTCVAG04 3 billion and Vitamin A 120 μg.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Positivity for NTCVAG04 in rectal swabs collected at the end of the first treatment cycle.	A descriptive statistical analysis will be performed for the rectal swabs for NTCVAG04	At the end of the first cycle ( the cycle is 14 days - Visit 2 - 21st day (± 2) of the menstrual cycle in progress or following enrolment)
Positivity for NTCVAG04 in rectal swabs collected at the end of the second treatment cycle.	A descriptive statistical analysis will be performed for the rectal swabs for NTCVAG04	At the end of the second treatment cycles (the cycle is 14 days - Visit 3 - 14th day (± 2) of the next menstrual cycle)
Positivity for NTCVAG04 in vaginal swabs collected at the end of the first treatment cycle.	A descriptive statistical analysis will be performed for the vaginal swabs for NTCVAG04	At the end of the first cycle (the cycle is 14 days - Visit 2 - 21st day (± 2) of the menstrual cycle in progress) or following enrolment
Positivity for NTCVAG04 in vaginal swabs collected at the end of the second treatment cycle.	A descriptive statistical analysis will be performed for the vaginal swabs for NTCVAG04	At the end of the second treatment cycles (the cycle is 14 days - Visit 3 - 14th day (± 2) of the next menstrual cycle)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of patients with adverse events	Analysis of patients that reported an adverse events and analysis of number and type of adverse events.	up to 30 days

Collaborators and Investigators

• Sponsor: NTC srl
• Investigators: Principal Investigator: Vincenzo De Leo, Ospedale Santa Maria alle Scotte

Study record dates

Study Major Dates

• Study Start (Actual): November 22, 2019
• Primary Completion (Actual): May 27, 2020
• Study Completion (Actual): July 21, 2020

Study Registration Dates

• First Submitted: December 15, 2020
• First Submitted That Met QC Criteria: December 18, 2020
• First Posted (Actual): December 21, 2020

Study Record Updates

• Last Update Posted (Actual): December 21, 2020
• Last Update Submitted That Met QC Criteria: December 18, 2020
• Last Verified: December 1, 2020

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Vaginal Diseases; Vaginitis
• Other Study ID Numbers: NTCVAG04_02-2018

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No