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Use of vitamin C tablet in the prophylaxis of bacterial vaginosis relapses

A randomized, comparative, double-blind, placebo-controlled, parallel group study to evaluate the efficacy of a 250 mg Vitamin C vaginal tablet - as prophylaxis of recurrent bacterial vaginosis

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN77890633
Enrollment
142
Registered
2012-10-24
Start date
2005-04-02
Completion date
Unknown
Last updated
2015-01-13

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

Conditions

Prophylaxis of bacterial vaginosis Infections and Infestations

Interventions

Women, cured (confirmed by the absence of 3 out of 4 Amsel criteria) from an episode of BV by an antibiotic treatment course of either metronidazole or clindamycin, were randomly assigned to receive v

Sponsors

Polichem SA (Switzerland)
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Age = 18 years and < 50 years 2. Medical history positive for recurrent BV episodes (= 2 by years) 3. Regular menses 4. Diagnosis of BV (= 3 out of 4 Amsel criteria) at enrolment 5. Cure from the current BV episode (= 3 out of 4 Amsel criteria) with either metronidazole or clindamycin, according to the local therapeutic protocols 6. Written informed consent 7. Co-operative and reliable women

Exclusion criteria

Exclusion criteria: 1. Subjects with known hypersensitivity to ascorbic acid or to any of the ingredients 2. Metrorrhagia, polymenorrhea, amenorrea 3. Current or previous infections due to Neisseria gonorrheae, Treponema palidum, Herpes genitalis during the last 2 weeks before enrolment 4. Current or previous infections due to Candida spp. or to Trichomonas vaginalis during the last 2 weeks before enrolment 5. Concomitant treatment with local antibiotics, such as metronidazole and clindamycin, during the study prophylaxis 6. Concomitant use of local acidifying agents, disinfectants, Lactobacillus preparations or vaginal douching during the last 2 weeks before enrolment and during the study period 7. Immunodepression, including HIV positive patients 8. Concomitant neoplastic diseases under treatment 9. Ongoing pregnancy of women willing to be pregnant during the study period 10. Participation to clinical trials with investigational drug / devices during the last 3 months before enrolment 11. History of alcohol and drug abuse 12. Subjects likely to be not compliant or uncooperative

Design outcomes

Primary

MeasureTime frame
Time to the first BV relapse (according to Amsel criteria) in the 2 groups during the period of prophylaxis.

Secondary

MeasureTime frame
1. Vaginal signs and symptoms (Erythema, Oedema, Fissures, Odour, Itching, Burning, Dysuria, Discharge) assessed by means of a four-point scale: 1=absent; 2=mild; 3=moderate; 4=severe 2. Measurement of vaginal pH 3. Investigator?s and subject?s judgement on product acceptability and tolerability assessed by means of a four-point scale: 1= very good, 2= good, 3=fair, 4= poor, 5= very poor 4. Assessment of adverse event (AEs) occurring at any time during the study

Countries

Germany, Italy, Netherlands, Portugal, Russian Federation, Ukraine

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026