NCT06165354

Brief Summary

Vaginitis is a common reproductive infection in women worldwide, particularly in tropical and underdeveloped countries. Traditional antibiotic treatments can disrupt the balance of beneficial bacteria, requiring repeated use, seriously affecting women's health. Therefore, probiotics are microorganisms that are beneficial to human health when consumed in sufficient amounts, playing an important role in maintaining the balance of the body's microflora, especially in the intestines and vagina. Many studies around the world have proven that probiotic strains belonging to the genera Lactobacillus, Bifidobacterium, Bacillus, and Saccharomyces can help reduce the incidence and severity of bacterial vaginal infections and yeast infections. However, the effectiveness of oral or tablet probiotics is limited due to a slow onset of action and sensitivity to acidic conditions and temperature. In this study, the investigators proposed that vaginal spray probiotics containing Bacillus strains combined with proven stability in both acidic and thermal environments, may be a safe and effective symptomatic treatment for vaginal infections due to pathogenic bacteria, viruses, fungi, and/or flagellates. This probiotic supportive therapy may offer a promising alternative to traditional antibiotic therapy by (i) inhibiting the growth of pathogenic microorganism; (ii) regulating pro-inflammatory cytokines; and (iii) improving vaginal microbiota. The aim of the study is to evaluate the effectiveness of vaginal-spraying Bacillus probiotics in LiveSpo®️ X-SECRET (5 billion CFU/5 mL B. subtilis, B. clausii, and B. coagulans) in preventing and supporting the treatment of vaginal infections. Study Population: The study is being carried out at Hanoi Obstetrics and Gynecology Hospital (Hanoi OGH) and Bac Ninh Center for Disease Control and Prevention (Bac Ninh CDC). The sample size is 120 per each location. Description of Study Intervention: In each location, a total of 120 eligible patients are recruited and divided randomly into 2 groups (n = 60/group/location): Control and Experimental groups. Patients in the Control group received routine treatment and 2-3 times/day 0.9% NaCl physiological saline while patients in the experimental group were treated with LiveSpo X-SECRET 2-3 times/day in addition to the same standard of care treatment. While the standard treatment regimen lasts for 7 days, the probiotic treatment is continually maintained for 28 days. Study duration: 8 months.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2023

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 22, 2023

Completed
9 days until next milestone

Study Start

First participant enrolled

December 1, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

December 11, 2023

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2025

Completed
Last Updated

July 25, 2025

Status Verified

July 1, 2025

Enrollment Period

1.1 years

First QC Date

November 22, 2023

Last Update Submit

July 22, 2025

Conditions

Keywords

Bacterial vaginosis (BV)Sexually Transmitted Diseases (STDs)Vaginal-spraying probioticsBacillus sporesBacteriaFungiVirusVietnamese women

Outcome Measures

Primary Outcomes (1)

  • Percentage of patients with free and/or reduced gynecological infection symptoms

    Vulvar and vaginal ulcers (rating from 0 to 3 on a scale of: no ulcers - 0, labia minora ulcers, small, no pain-1, larger or painful ulcer - 2, very large, painful and rapidly spreading ulcer - 3) Inflammation (rating from 0 to 3 on a scale of: none - 0, mild redness or inflammation - 1, swelling or pain in vulva, vagina, or groin - 2, swollen lymph nodes and groin pain - 3) Itching (rating from 0 to 3 on a scale of: none - 0, mild itching or irritation - 1, itching, burning - 2, severe and persistent itching, burning - 3) Vaginal fluid color (uniform-clear white - 0, opalescent white - 1A, yellow/green - 1B; grey white - 1C) Vaginal odor (No/Yes) Painful/ painful urination (No/Yes) Lower abdominal pain (No/Yes) Abnormal vaginal bleeding (No/Yes)

    Day 0, 3, 7, 14, and 28

Secondary Outcomes (4)

  • Changes in the vaginal pathogens load

    Day 0, 3, 7, 14, and 28

  • Changes in immune indices in vaginal samples before and after treatment

    Day 0, 3, 7, 14, and 28

  • Changes in other patient's sub-clinical indicators in vaginal samples before and after treatment

    Day 0, 3, 7, 14, and 28

  • Changes in vaginal microbiota vaginal samples before and after treatment

    Day 0,7, and 28

Study Arms (2)

Control

PLACEBO COMPARATOR

Control group receives the routine treatment and uses 0.9% NaCl physiological saline. The routine treatment regimen at Hanoi Obstetrics and Gynecology Hospital (Hanoi OGH) and Bac Ninh Center for Disease Control and Prevention (Bac Ninh CDC) depends on clinical symptoms, test results of bacterial staining and pathogen detected using multiplex real time PCR assay on day 0.

Drug: 0.9% NaCl physiological saline

X-secret

EXPERIMENTAL

X-SECRET group receives the routine treatment and uses NaCl 0.9% plus B. subtilis, B. clausii, and B. coagulans at 5 billion CFU/5 mL (LiveSpo®️ X-SECRET). The routine treatment regimen at Hanoi OGH and Bac Ninh CDC depends on clinical symptoms, test results of bacterial staining and pathogen detected using multiplex real time PCR assay on day 0.

Combination Product: LiveSpo X-secret

Interventions

Vaginal-spraying 0.9% NaCl physiological saline is prepared by extracting 10 mL from 0.9% NaCl intravenous infusion 500 mL PP bottle (B.Braun, Germany, product declaration No. VD-32732-19), and then pouring it into the same opaque metallic spraying 20 mL-bottle.

Also known as: Registration number: VD-32723-19
Control
LiveSpo X-secretCOMBINATION_PRODUCT

In Vietnam, LiveSpo X-SECRET is manufactured as two product lines: (1) Class-A medical device product (Product declaration No.220003286/PCBA-HN) under manufacturing standards approved by Hanoi Department of Health, Ministry of Health, Vietnam and ISO 13485:2016 (Certificate No YT117-19) and (2) comestic (Product declaration No.14981/22/CBMP-HA) under manufacturing standards approved by Hanoi Department of Health, Ministry of Health, Vietnam (Certificate No 118/CNĐĐKSXMP. Both product lines have the same probiotic composition. The cosmetic type was used for the clinical trial conducted at Hanoi OGH. The Class-A medical device type was used for the clinical trial conducted at Bac Ninh CDC.

Also known as: Registration number: No.220003286/PCBA-HN, Registration number: 14981/22/CBMP-HA
X-secret

Eligibility Criteria

Age18 Years - 60 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsVagninitis infection in women.
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Women from 18 to 60 years old
  • Diagnosed with vaginitis with obvious symptoms and manifestations such as: vulvar/vaginal ulcers, inflammation, vaginal odor, vaginal itching, vaginal cololr, painful/ painful urination, lower abdominal pain; pain during sex; abnormal vaginal bleeding…
  • Positive for one of the following pathogents that cause vaginitis, such as Gardnerella vaginalis, Mycoplasma hominis, Candida albicans, Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium, HSV-1, HSV-2, Trichomonas vaginalis, detected by real-time PCR assay.
  • The patient agrees to participate in the study, explains and signs the consent form to participate in the study.

You may not qualify if:

  • Women who are pregnant or breast-feeding, have diabetes, are using antibiotics/anti-inflammatory drugs in the vaginal area within the previous 14 days
  • Vaginal bleeding of unknown cause or cancer
  • Have a history of drug allergy and hypersensitivity to any ingredient in probiotics or placebo
  • Leave the study before day 7
  • Simultaneous participation in another clinical trial or use of probiotics for the gynecological tract within the past 14 days
  • Meets criteria for mental, cognitive, depressive or anxiety disorders
  • Do not agree to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Centers for Disease Control and Prevention

Bắc Ninh, Bac Ninh, 220000, Vietnam

Location

Hanoi Obstetrics and Gynecology Hospital

Ba Dinh, Hanoi, 100000, Vietnam

Location

Related Publications (14)

  • Izetbegovic S, Alajbegovic J, Mutevelic A, Pasagic A, Masic I. Prevention of diseases in gynecology. Int J Prev Med. 2013 Dec;4(12):1347-58.

    PMID: 24498489BACKGROUND
  • Morrill S, Gilbert NM, Lewis AL. Gardnerella vaginalis as a Cause of Bacterial Vaginosis: Appraisal of the Evidence From in vivo Models. Front Cell Infect Microbiol. 2020 Apr 24;10:168. doi: 10.3389/fcimb.2020.00168. eCollection 2020.

    PMID: 32391287BACKGROUND
  • Peebles K, Velloza J, Balkus JE, McClelland RS, Barnabas RV. High Global Burden and Costs of Bacterial Vaginosis: A Systematic Review and Meta-Analysis. Sex Transm Dis. 2019 May;46(5):304-311. doi: 10.1097/OLQ.0000000000000972.

    PMID: 30624309BACKGROUND
  • Le T, Kinh NV, Cuc NTK, Tung NLN, Lam NT, Thuy PTT, Cuong DD, Phuc PTH, Vinh VH, Hanh DTH, Tam VV, Thanh NT, Thuy TP, Hang NT, Long HB, Nhan HT, Wertheim HFL, Merson L, Shikuma C, Day JN, Chau NVV, Farrar J, Thwaites G, Wolbers M; IVAP Investigators. A Trial of Itraconazole or Amphotericin B for HIV-Associated Talaromycosis. N Engl J Med. 2017 Jun 15;376(24):2329-2340. doi: 10.1056/NEJMoa1613306.

    PMID: 28614691BACKGROUND
  • Tuddenham S, Hamill MM, Ghanem KG. Diagnosis and Treatment of Sexually Transmitted Infections: A Review. JAMA. 2022 Jan 11;327(2):161-172. doi: 10.1001/jama.2021.23487.

    PMID: 35015033BACKGROUND
  • Ton Nu PA, Nguyen VQ, Cao NT, Dessi D, Rappelli P, Fiori PL. Prevalence of Trichomonas vaginalis infection in symptomatic and asymptomatic women in Central Vietnam. J Infect Dev Ctries. 2015 Jul 4;9(6):655-60. doi: 10.3855/jidc.7190.

    PMID: 26142677BACKGROUND
  • Mastromarino P, Macchia S, Meggiorini L, Trinchieri V, Mosca L, Perluigi M, Midulla C. Effectiveness of Lactobacillus-containing vaginal tablets in the treatment of symptomatic bacterial vaginosis. Clin Microbiol Infect. 2009 Jan;15(1):67-74. doi: 10.1111/j.1469-0691.2008.02112.x. Epub 2008 Nov 22.

    PMID: 19046169BACKGROUND
  • de Boer AS, Diderichsen B. On the safety of Bacillus subtilis and B. amyloliquefaciens: a review. Appl Microbiol Biotechnol. 1991 Oct;36(1):1-4. doi: 10.1007/BF00164689. No abstract available.

    PMID: 1367772BACKGROUND
  • Ratna Sudha M, Yelikar KA, Deshpande S. Clinical Study of Bacillus coagulans Unique IS-2 (ATCC PTA-11748) in the Treatment of Patients with Bacterial Vaginosis. Indian J Microbiol. 2012 Sep;52(3):396-9. doi: 10.1007/s12088-011-0233-z. Epub 2011 Sep 23.

    PMID: 23997330BACKGROUND
  • Tsimaris P, Giannouli A, Tzouma C, Athanasopoulos N, Creatsas G, Deligeoroglou E. Alleviation of vulvovaginitis symptoms: can probiotics lead the treatment plan? Benef Microbes. 2019 Dec 9;10(8):867-872. doi: 10.3920/BM2019.0048.

    PMID: 31965832BACKGROUND
  • Lee NK, Kim WS, Paik HD. Bacillus strains as human probiotics: characterization, safety, microbiome, and probiotic carrier. Food Sci Biotechnol. 2019 Oct 8;28(5):1297-1305. doi: 10.1007/s10068-019-00691-9. eCollection 2019 Oct.

    PMID: 31695928BACKGROUND
  • Li C, Wang T, Li Y, Zhang T, Wang Q, He J, Wang L, Li L, Yang N, Fang Y. Probiotics for the treatment of women with bacterial vaginosis: A systematic review and meta-analysis of randomized clinical trials. Eur J Pharmacol. 2019 Dec 1;864:172660. doi: 10.1016/j.ejphar.2019.172660. Epub 2019 Sep 25.

    PMID: 31562865BACKGROUND
  • Bui HTV, Bui HT, Chu SV, Nguyen HT, Nguyen ATV, Truong PT, Dang TTH, Nguyen ATV. Simultaneous real-time PCR detection of nine prevalent sexually transmitted infections using a predesigned double-quenched TaqMan probe panel. PLoS One. 2023 Mar 6;18(3):e0282439. doi: 10.1371/journal.pone.0282439. eCollection 2023.

    PMID: 36877694BACKGROUND
  • Bui HT, Bui ATP, Ngo HT, Ngo XT, Nguyen HT, Nguyen AH, Tran VC, Pham TD, Nguyen ATV. Vaginal-spray Bacillus spore probiotics as a potential treatment and reducing recurrence of bacterial vaginosis: randomized, double-blind, and controlled pilot study. Commun Med (Lond). 2025 Nov 18;5(1):527. doi: 10.1038/s43856-025-01236-4.

MeSH Terms

Conditions

VaginitisVaginosis, BacterialSexually Transmitted DiseasesVirus Diseases

Condition Hierarchy (Ancestors)

Vaginal DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital DiseasesBacterial InfectionsBacterial Infections and MycosesInfectionsCommunicable DiseasesDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Chuong C Nguyen, MSc. MD

    Hanoi Obstetrics and Gynecology Hospital

    PRINCIPAL INVESTIGATOR
  • Anh TV Nguyen, Assoc. Prof.

    Spobio Research Center, Anabio R&D

    PRINCIPAL INVESTIGATOR
  • Thuy TB Nguyen, MSc. MD

    Hanoi Obstetrics and Gynecology Hospital

    PRINCIPAL INVESTIGATOR
  • Ngoc TB Nguyen, MD

    Hanoi Obstetrics and Gynecology Hospital

    PRINCIPAL INVESTIGATOR
  • Hong T Ngo, MSc

    Bac Ninh Center for Disease Control and Prevention

    PRINCIPAL INVESTIGATOR
  • Huyen T Bui

    Spobio Research Center, Anabio R&D

    PRINCIPAL INVESTIGATOR
  • Hao TN Vo

    Spobio Research Center, Anabio R&D

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
LiveSpo X-secret and placebo 0.9% NaCl physiological saline are indistinguishable regarding taste and smell. The color and turbidity of LiveSpo X-secret suspension is unrecognizable to investigators except the PI and analyzer due to opaque plastic container.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Parallel Assignment Parallel Assignment Blind, randomized, and controlled clinical trial
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 22, 2023

First Posted

December 11, 2023

Study Start

December 1, 2023

Primary Completion

December 31, 2024

Study Completion

June 30, 2025

Last Updated

July 25, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will share

Data or samples share that will be coded, with no PHI include. Approval of the request and execution of all applicable agreements (i.e. a material transfer agreement) are prerequisites to the sharing of data with the requesting party.

Shared Documents
STUDY PROTOCOL, ICF, CSR
Time Frame
Data requests can be submitted starting 9 months after article publication and the data will be made accessible for up to 24 months. Extensions will be considered on a case-by-case basis.
Access Criteria
Access to trial IPD can be requested by qualified researchers engaging in independent scientific research and will be provided following review and approval of a study protocol, informed consent form (ICF), clinical study peport (CSR). For more information or to submit a request, please contact anabio.rd2021@gmail.com

Locations