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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2015 ; 10
(12
): e0145642
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The Promise of Intravaginal Rings for Prevention: User Perceptions of
Biomechanical Properties and Implications for Prevention Product Development
#MMPMID26695431
Morrow Guthrie K
; Vargas S
; Shaw JG
; Rosen RK
; van den Berg JJ
; Kiser PF
; Buckheit K
; Bregman D
; Thompson L
; Jensen K
; Johnson T
; Buckheit RW
PLoS One
2015[]; 10
(12
): e0145642
PMID26695431
show ga
Intravaginal rings (IVRs) are currently under investigation as devices for the
delivery of agents to protect against the sexual transmission of HIV and STIs, as
well as pregnancy. To assist product developers in creating highly acceptable
rings, we sought to identify characteristics that intravaginal ring users
consider when making decisions about ring use or non-use. We conducted four
semi-structured focus groups with 21 women (aged 18-45) who reported using an IVR
in the past 12 months. Participants manipulated four prototype rings in their
hands, discussed ring materials, dimensionality, and "behavior," and shared
perceptions and appraisals. Five salient ring characteristics were identified: 1)
appearance of the rings' surfaces, 2) tactile sensations of the cylinder
material, 3) materials properties, 4) diameter of the cylinder, and 5) ring
circumference. Pliability (or flexibility) was generally considered the most
important mechanical property. Several ring properties (e.g., porousness,
dimensionality) were associated with perceptions of efficacy. Women also revealed
user behaviors that may impact the effectiveness of certain drugs, such as
removing, rinsing and re-inserting the ring while bathing, and removing the ring
during sexual encounters. As product developers explore IVRs as prevention
delivery systems, it is critical to balance product materials and dimensions with
use parameters to optimize drug delivery and the user experience. It is also
critical to consider how user behaviors (e.g., removing the ring) might impact
drug delivery.