Drivers of Vaginal Drug Delivery System Acceptability from Internet-Based Conjoint Analysis

Area of Science:

• Public Health
• Women's Health
• Pharmaceutical Sciences

Background:

• Vaginal microbicides offer women autonomy in preventing HIV and STIs, crucial where condom use negotiation is difficult.
• Limited research exists on user acceptability factors for women's health products and vaginal drug delivery systems.
• Understanding user preferences is vital for developing acceptable and effective microbicide products.

Purpose of the Study:

• To identify key attributes influencing women's willingness to try a vaginal microbicide.
• To inform the formulation of user-acceptable microbicides through conjoint analysis.
• To understand preferences for sensory and non-sensory product features.

Main Methods:

• Conjoint analysis, a market research technique, was employed to assess product attribute importance.
• An anonymous online survey was administered to 302 heterosexually active women aged 18-35 in the US.
• Participants rated systematically combined product attributes on a 9-point willingness-to-try scale using IdeaMap software.

Main Results:

• A multifunctional microbicide (broad-spectrum STI protection + conception) was significantly more desirable than an HIV-only product.
• Product attributes evaluated included shape, color, wait time, partner awareness, messiness/leakage, duration of protection, and functionality.
• Partner awareness and product leakage emerged as significant potential barriers to microbicide use.

Conclusions:

• Multifunctionality and user experience (minimal leakage, discreet application) are critical for microbicide acceptability.
• Addressing potential barriers like partner awareness and messiness is essential for successful microbicide adoption.
• User-centered design, informed by conjoint analysis, can guide the development of effective women's health technologies.