Journal
SEXUALLY TRANSMITTED DISEASES
Volume 36, Issue 9, Pages 564-569Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/OLQ.0b013e3181a74924
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Funding
- Osel Inc.
- Doris Duke Charitable Foundation Clinical Research
- National Center for Research Resources (NCRR) [UL1 RR024131-01]
- National Institutes of Health (NIH
- Roadmap for Medical Research
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Background: Bacterial vaginosis is a very common vaginal infection. The lack of endogenous lactobacilli and overgrowth of pathogens facilitate numerous gynecological complications. Methods: A phase I dose-ranging safety trial tested the safety, tolerability, and acceptability of Lactobacillus crispatus CTV-05 (LACTIN-V) administered by vaginal applicator. Twelve healthy volunteers were enrolled in 3 blocks of 4 (5 X 10(8), 1 X 10(9), and 2 X 10(9) cfu/dose). Each block was randomized in a 3:1 ratio of active product to placebo. Participants used study product for 5 consecutive days, returned for follow-up on (lays 7 and 14, and had phone interviews on days 2 and 35. Results: All 12 participants took 5 doses and completed study follow-up. Overall, 45 adverse events (AEs) occurred, of which 31 (69%) were genitourinary (GU) AEs. GU AEs appeared evenly distributed between the 3 treatment blocks and between LACTIN-V and placebo arms. The most common GU AEs were vaginal discharge in 5 subjects (42%), abdominal pain in 4 subjects (33%), metrorrhagia in 4 subjects (33%), vulvovaginitis in 4 subjects (33%). vaginal candidiasis in 3 subjects (25%), and vaginal odor in 3 subjects (25%). Forty-one (91%) AEs were mild (grade 1) in severity. All 4 moderate AEs (grade 2) were unrelated to product use. No grade 3 or 4 AEs or serious adverse events (SAE) occurred. Laboratory parameters and colposcopy findings were within normal limits or clinically insignificant. The product was well-tolerated and accepted. Conclusion: All 3 dose levels of LACTIN-V appeared to be safe and acceptable in healthy volunteers.
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