4 Clinical Trials for Various Conditions
This is a Prospective open-label, comparative pivotal study with comparison of self-assessments with blinded investigator assessments. Pregnant women attending the labor and delivery unit of the hospital or emergency clinic and reporting unidentified wetness (undetermined whether this is amniotic fluid leakage or urinary incontinence) will be enrolled in this study. After informed consent is obtained, each subject will be given a single AL-SENSE to use up to 12 hours or until the perception of wetness. Product Usage After usage, the subject will read and record any occurrence of color change of the AL-SENSE 10 minutes after the liner removal and to mark if it changes color to blue or to green or not on the designated form. The subjects will fill out the questionnaire regarding the product usage experience and the liner color reading with no help from the investigator, to validate IFU reading comprehension. A blinded clinician will perform a "standard clinical diagnosis" (clinical assessment). The standard clinical diagnostic methods will include the following tests: (1) Pooling test, (2) Ferning test, (3) pH test by pH paper. A positive Pooling test and/or positive results in both the pH test and the Ferning test will be defined as a positive clinical test result.
The purpose of this study is to demonstrate that the Diagnostic Absorbent Panty liner (AL-SENSE Amniotic Leak Test Kit), developed by Common Sense Ltd., can distinguish between wetness sensed by pregnant women that is caused by amniotic fluid leakage and that which is caused by urinary incontinence.
Although much investigation has been done on the use of ferning in the second and third trimesters, particularly with the development of rapid protein clinical assays, there appears to be lower ferning rates in clinical practice with traditional techniques compared to previous published research on the subject. Much of the older study designs are lacking in detail and lack a large enough sample sizes at each gestational age to appropriately interpret the significance of ferning results by gestational age. Additionally, a large premise for the current tests used to diagnose rupture of membranes is based on these older studies. Given this, we propose collecting amniotic fluid vaginally to evaluate for the presence of ferning in the second trimester to determine if there is a difference in ferning based on gestational age as well as the time interval after rupture of membranes in which ferning can observed on microscope examination.
Specific objectives include confirmation: i) that the ROM PLUS consistently and accurately diagnoses rupture of membranes (ROM), ii) that the technique can be understood and applied in clinical practice, and iii) that the ROM PLUS is easier to use than the conventional method.