Sildenafil Cream, 3.6% has the Potential to Be the First FDA-Approved Product for FSAD
SAN DIEGO, Dec. 11, 2019 (GLOBE NEWSWIRE) — Daré Bioscience, Inc. (NASDAQ:DARE), a leader in women’s health innovation, and Strategic Science & Technologies, LLC (SST), a Cambridge, MA based novel topical drug delivery company, today announced the outcome of a Type C meeting with the U.S. Food and Drug Administration (FDA) where alignment was reached on the patient reported outcome (PRO) instruments to be used in a Phase 2b clinical study of Sildenafil Cream, 3.6% (Sildenafil Cream) to screen eligible patients with Female Sexual Arousal Disorder (FSAD) and to assess the efficacy of Sildenafil Cream in treating FSAD. The discussions with the FDA followed the completion of a content validity study of the proposed PRO instruments, a non-interventional study integral to initiating the at-home, product dosing portion of the Sildenafil Cream Phase 2b program.
“We made excellent progress this year achieving alignment with the FDA on an appropriate and acceptable development plan for a drug to treat FSAD,” said Sabrina Martucci Johnson, President and CEO of Daré Bioscience. “Importantly, we aligned with the FDA on the design of our Phase 2b study, including the PRO instruments to be used to measure achievement of the primary efficacy endpoints, namely improvement in localized genital sensations of arousal and reduction in the distress that women with FSAD experience. We are pleased that the FDA recognizes the validity of the PRO instruments to test the efficacy of a drug to treat FSAD that are specific to the Sildenafil Cream mechanism of action. This is a significant milestone in the development of what has the potential to be the first FDA-approved product to treat FSAD. In addition, we aligned with the FDA on several exploratory efficacy endpoints which will be measured in our Phase 2b study and could potentially prove to be additional measurements of efficacy in a future Phase 3 program. We are encouraged by the continued collaborative approach we are experiencing with all FDA divisions and are thrilled to have reached this point in the Sildenafil Cream development program.”
Of the various types of female sexual dysfunction disorders, FSAD is most analogous to erectile dysfunction (ED) in men and is characterized primarily by an inability to attain or maintain sufficient genital arousal during sexual activity that causes distress or interpersonal difficulty. Despite several approved prescription products for ED, no pharmacologic options have yet been approved by the FDA for FSAD. Sildenafil, the active ingredient in Sildenafil Cream, is marketed in an oral dosage form under the brand name Viagra® for the treatment of ED in men.
“We are very pleased to achieve this alignment with the FDA on the Phase 2b study design,” said Steven Brugger, President and Chief Operating Officer of SST. “We are excited to be working at the cutting edge of research focused on women’s sexual health and to advance a potential first-in-category treatment option for women suffering with FSAD.”
Sildenafil Cream is a proprietary cream formulation of sildenafil specifically designed to increase blood flow to the genital tissue in women, leading to a potential improvement in genital arousal response during sexual activity. If successful in clinical studies, Sildenafil Cream has the potential to be the first FDA-approved pharmacologic treatment option for FSAD. In a Phase 2a trial, Sildenafil Cream increased measurable blood flow to the vaginal tissue in both pre- and post-menopausal women with FSAD compared to placebo cream. Further, data from a thermography study in healthy women demonstrated significantly greater increases in genital temperature after administration of Sildenafil Cream compared to after administration of placebo cream and no cream at all, indicating a positive impact on genital blood flow during the 30-minute testing session.
As part of the Type C process, Daré and SST also confirmed with the FDA that no additional nonclinical or clinical data are required before initiating the Phase 2b at-home study. The companies also reviewed with the FDA what other data would be required to support a future New Drug Application (NDA) submission, including additional nonclinical and clinical studies that may need to be completed before NDA submission. Daré and SST will continue to actively engage with the FDA in 2020 to help ensure any required studies and activities are completed over the balance of the development program to support an NDA submission that will be complete for review.
The companies intend to initiate the Phase 2b at-home study in 2020. The Phase 2b is designed to evaluate Sildenafil Cream versus placebo over twelve weeks of dosing following both a non-drug and placebo run-in period.
About Daré Bioscience
Daré Bioscience is a clinical-stage biopharmaceutical company committed to the advancement of innovative products for women’s health. The company’s mission is to identify, develop and bring to market a diverse portfolio of differentiated therapies that expand treatment options, improve outcomes and facilitate convenience for women, primarily in the areas of contraception, vaginal health, sexual health, and fertility.
Daré’s product portfolio includes potential first-in-category candidates in clinical development: Ovaprene®, a hormone-free, monthly vaginal contraceptive; Sildenafil Cream, 3.6%, a novel cream formulation of sildenafil to treat female sexual arousal disorder utilizing the active ingredient in Viagra®; DARE-BV1, a unique hydrogel formulation of clindamycin phosphate 2% to treat bacterial vaginosis via a single application; and DARE-HRT1, a combination bio-identical estradiol and progesterone intravaginal ring for hormone replacement therapy following menopause. To learn more about Daré’s full portfolio of women’s health product candidates, and mission to deliver differentiated therapies for women, please visit www.darebioscience.com.
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