Safety and efficacy of the NuvaRing® Applicator in healthy females: a multicenter, open-label, randomized, 2-period crossover study.

Introduction: We assessed performance and safety of the NuvaRing® Applicator.

Methods: We randomized women (18-45 years) to insert a placebo ring using the applicator or fingers-only and then vice versa. We assessed outcomes post-insertion and then 24-72 h later.

Results: Insertion was 100% successful using both methods (applicator, n=163; fingers-only, n=162). A total of 8.6% (applicator) and 4.3% (fingers-only) of subjects reported at least 1 treatment-related adverse event (AE); all were mild. Subjects reported 5 applicator-related AEs (vulvovaginal pain, 4; abdominal cramping, 1). There was no vaginal bleeding within 15 h post-applicator use. Ring expulsions were rare (applicator, 1; fingers-only, 2).

Conclusion: NuvaRing Applicator is effective and well-tolerated (NCT02275546).