Postmenopausal vulvovaginal atrophy

Hamid 2025

Value of injection of plasma-rich platelets in the vaginal mucosa in cases with vulvovaginal atrophy: a prospective double-blinded randomized controlled study.

Clinical evidence · Gynaecology

There is growing interest in the use of several innovative technologies being routinely used for facial skin care and skin rejuvenation for the treatment of genital disorders resulting from the aging process or with inflammation-related origins. This includes the use of PRP.

Postmenopausal vulvovaginal atrophy (VVA) is due to hypoestrogenic state that leads to anatomical, histological, and physiological changes that affects the lower genital and urinary tract.

VVA is manifested by genital dryness, burning, irritation and sexual dysfunction. VVA affects 67%–98% of the menopausal women and is associated with psychosocial distress and sexual dysfunction leading to negative impact on the quality of life of the patients.

OBJECTIVE

Assess the efficacy of RegenPRP™ injections in alleviating VVA symptoms in postmenopausal women.

PROTOCOL

Prospective double-blinded randomized controlled clinical trial on 60 women experiencing vaginal atrophy. Thirty participants received a single session of intramucosal RegenPRP™ injections, while the other 30 received saline injections as a placebo. Clinical evaluations were performed after 4 months using the Female Sexual Function Index (FSFI) and the 36-item short-form survey (SF-36) for the evaluation of quality of life. Four ml of RegenPRP™ were injected into the first 3 cm of the posterior vaginal wall and the posterior introitus. The injections were performed using a point-by-point technique, injecting 0.4 ml at each site every 5 mm, employing a 27G needle and a 1 ml syringe.

RESULTS

After 4 months significant improvement in FSFI scores were observed in the RegenPRP™ group while it remained stable in the saline group (mean improvement 9.8 ± 2.7 vs. -0.1 ± 0.6, P < 0.001, respectively). More specifically, improvements compared to baseline were seen for lubrication (2.26 ± 0.99 vs. 1.15 ± 0.81, P = 0.02), satisfaction (5.27 ± 0.63 vs. 1.31 ± 0.78, P < 0.001), and pain (5.18 ± 0.59 vs. 2.51 ± 1.63, P < 0.001) scores in the RegenPRP™ group, see figure 1. Except for the physical functioning score that was already at 100 at baseline for both groups, all the other SF36 scores improved significantly (p < 0.001) in the RegenPRP™ group, while no improvements were observed for all these scores in the placebo group.

Female Sexual Function Index · FSFI

Mean improvement in total FSFI score

+9.8 pointsRegenPRP™ · n = 30

Reported change: 9.8 ± 2.7

−0.1 pointsSaline placebo · n = 30

Reported change: −0.1 ± 0.6

Change from baseline at 4 months. A higher FSFI score indicates better sexual function.

P < 0.001
RegenPRP™ group · FSFI domain

Lubrication

Baseline1.15 ± 0.81
4 months2.26 ± 0.99

FSFI domain score · bars show reported means on a 0–6 scale. Higher scores indicate better function in this domain.

P = 0.02

RegenPRP™ group only (n = 30). ± values reproduced as reported in the brochure.

RegenPRP™ group · FSFI domain

Satisfaction

Baseline1.31 ± 0.78
4 months5.27 ± 0.63

FSFI domain score · bars show reported means on a 0–6 scale. Higher scores indicate better function in this domain.

P < 0.001

RegenPRP™ group only (n = 30). ± values reproduced as reported in the brochure.

RegenPRP™ group · FSFI domain

Pain

Baseline2.51 ± 1.63
4 months5.18 ± 0.59

FSFI domain score · bars show reported means on a 0–6 scale. Higher pain-domain scores indicate less pain.

P < 0.001

RegenPRP™ group only (n = 30). ± values reproduced as reported in the brochure.

FSFI score by improved domains

Baseline and 4-month follow-up · Saline vs RegenPRP™ · 30 women per group

FSFI score 0 1 2 3 4 5 6 7 Lubrication · Saline · Baseline Lubrication · RegenPRP™ · Baseline Satisfaction · Saline · Baseline Satisfaction · RegenPRP™ · Baseline Pain · Saline · Baseline Pain · RegenPRP™ · Baseline Lubrication · Saline · 4 months Lubrication · RegenPRP™ · 4 months Satisfaction · Saline · 4 months Satisfaction · RegenPRP™ · 4 months Pain · Saline · 4 months Pain · RegenPRP™ · 4 months Saline RegenPRP™ Saline RegenPRP™ Saline RegenPRP™ Lubrication Satisfaction Pain Baseline4 months
Higher scores indicate better sexual function; a higher pain-domain score indicates less pain. Bar heights and error bars reproduce Figure 1 in the brochure.

Source: RegenPRP™ Therapy Gynaecology, p. 6; Hamid et al., BMC Women’s Health (2025), 25:576.

For healthcare professionals only

CONCLUSION

A single session of RegenPRP™ injections allows to alleviate symptoms of VVA and improves emotional wellbeing and social functioning of the patients.

RegenPRP™ is an effective treatment to relieve symptoms in postmenopausal women suffering from VVA.

REFERENCE

Interpretation. These are study-level findings at 4 months, not individual outcome predictions. FSFI values are scores or changes in points, not percentages. Data and P values are reproduced from the supplied brochure; the original publication has not been independently reviewed here.

Source. RegenPRP™ Therapy Gynaecology brochure, p. 6, citing Hamid, A.S.A., et al. Value of injection of plasma-rich platelets in the vaginal mucosa in cases with vulvovaginal atrophy: a prospective double-blinded randomized controlled study. BMC Womens Health. 2025;25(1):576.

For healthcare professionals only

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Since 2003, Regen Lab SA has specialized in designing and manufacturing high-quality medical devices for cell therapies and the preparation of autologous platelet-rich plasma (PRP) from the patient's own blood for bedside procedures.

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2003 - Foundation
2010 - RegenKit first approval in bone graft
2013 - A new state-of-theart laboratory in Lausanne
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