Lactobacillus capsules for treating vaginal symptoms in young breast cancer patients

A Phase II Clinical Study of Lactobacillus Vaginalis Capsules for the Prevention and Treatment of Symptoms of Vulvovaginal Atrophy in Young Breast Cancer Patients Receving Ovarian Function Suppression (OFS) During Chemotherapy

Phase 2 Interventional The First Affiliated Hospital with Nanjing Medical University · NCT05974449

This study is testing if Lactobacillus capsules can help young breast cancer patients who are getting chemotherapy feel better by reducing vaginal dryness and discomfort.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years to 45 Years
SexFemale
SponsorThe First Affiliated Hospital with Nanjing Medical University Academic / other
Drugs / interventionschemotherapy, cyclophosphamide
Locations1 site (Nanjing, Jiangsu)
Trial IDNCT05974449 on ClinicalTrials.gov

What this trial studies

This phase II clinical study investigates the efficacy and safety of Lactobacillus vaginalis capsules in alleviating vulvovaginal symptoms in young breast cancer patients undergoing chemotherapy. The study aims to enroll 60 patients who are receiving ovarian protection during their treatment. By addressing issues such as vaginal dryness and discomfort, the study seeks to improve the quality of life and treatment compliance for these patients. Participants will be monitored for their response to the treatment and any associated side effects.

Who should consider this trial

Good fit: Ideal candidates are pre-menopausal female patients aged 18-45 with invasive breast cancer who are expected to undergo chemotherapy.

Not a fit: Patients with active genital tract infections or those who have used other vaginal medications recently may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve the quality of life for young breast cancer patients experiencing vulvovaginal symptoms due to chemotherapy.

How similar studies have performed: While the use of Lactobacillus for vaginal health is established, this specific application in young breast cancer patients undergoing chemotherapy is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Pathologically confirmed invasive breast cancer (regardless of pathology type);
2. Female patients 18-40 years of age with unlimited HR, or 41-45 years of age with negative HR;
3. Patients expected to receive ≥4 cycles of chemotherapy containing paclitaxel or anthracycline-containing chemotherapeutic agents and ovarian protective drugs;
4. Pre-menopausal (including perimenopausal);
5. Good compliance, normal comprehension and ability to receive treatment as required;
6. ECOG score 0-1;
7. Patients volunteered to participate in this study and signed an informed consent form.

Exclusion Criteria:

1. Use of any other vaginal medication in the 3 months prior to the study;
2. Use of any anti-infective medication in the 3 months prior to the study;
3. Active genital tract infection;
4. Previous development of other malignancies;
5. Any reason why they are unable to complete the full course of follow-up treatment as prescribed by their doctors;
6. AST and ALT ≥ 1.5 times the upper limit of normal, alkaline phosphatase ≥ 2.5 times the upper limit of normal, total bilirubin ≥ 1.5 times the upper limit of normal, serum creatinine ≥ 1.5 times the upper limit of normal; LVEF \< 50% on cardiac ultrasound;
7. Severe coagulation disorder, severe systemic disease, or uncontrollable infection;
8. Persons without personal freedom and independent civil capacity; the presence of mental disorders, addictions, etc., which in the judgment of the investigator do not qualify for enrolment.

Where this trial is running

Nanjing, Jiangsu

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast Cancer FemaleBreast cancer, Vulvovaginal symptoms ,Lactobacillus capsules
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.