CClinicalTrials.gg
CompletedNCT02965430Updated Sep 4, 2019

PERFORMANCE STUDY OF THE AL-SENSE

A Phase 3 interventional study of AL-SENSE in Amniotic Problems, sponsored by Common Sense. Completed. Open to female participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-09-04.

Sponsored by Common Sense · Phase 3, Interventional, and Diagnostic

Phase
Phase 3
Study type
Interventional
Enrollment
352
Allocation
Not applicable
Ages
18 Years to 55 Years
Sex
Female
01

Study summary

This is an open-label, comparative, and prospective pivotal study to demonstrate that AL-SENSE can indicate whether wetness sensed by pregnant women may be caused by amniotic fluid leakage rather than by urinary incontinence.

Subjects arriving at the hospital will receive a single AL-SENSE to use until they notice any wetness.

The blinded physician will perform a diagnosis according to the standard diagnostic methods (clinical assessment). The standard diagnostic methods will include the following tests: (1) Pooling test, (2) Ferning test, (3) pH test by pH paper. A positive Pooling test or positive result in both the pH test and the Ferning test is defined as a positive clinical assessment.

Read the detailed description

This is an open-label, comparative, and prospective pivotal study to demonstrate that AL-SENSE can indicate whether wetness sensed by pregnant women may be caused by amniotic fluid leakage rather than by urinary incontinence. Subjects arriving at the hospital and reporting unidentified wetness (undetermined whether this is amniotic fluid leakage or urinary incontinence) will receive a single AL-SENSE to use up to 12 hours or until they notice any wetness. The clinician will explain the proper use and handling of the AL-SENSE.

In each case, the blinded clinician will be required to read and record any occurrence of color change of the AL-SENSE 10 minutes after the AL-SENSE removal and to mark if it changes color to blue or to green on the designated form.

The blinded physician (other than the clinician who records the AL-SENSE results) will perform a diagnosis according to the standard diagnostic methods (clinical assessment). The standard diagnostic methods will include the following tests: (1) Pooling test, (2) Ferning test, (3) pH test by pH paper. A positive Pooling test or positive result in both the pH test and the Ferning test is defined as a positive clinical assessment.

In cases where the AL-SENSE shows positive results but the clinical assessment results are negative, reference laboratories, or any other standard procedure will check for the possibility of BV or Trichomonas in addition to the tests noted above.

02

Conditions studied

  • Amniotic Problems
03

In context

Lead sponsor

Common Sense is the lead sponsor of 7 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  1. Age 18 years or greater.
  2. Subject minimum 16 weeks of pregnancy.
  3. Who will sign the informed consent form.
  4. Who arrive at the obstetric department reporting a feeling of vaginal wetness feeling (undetermined whether this is amniotic fluid leakage or urinary incontinence).

Exclusion criteria

Exclusion Criteria:

  1. Subject who has experienced intermittent vaginal bleeding between the 2nd and 3rd trimesters.
  2. Subjects that have had sexual intercourse within the last 12 hours.
  3. Subject is unable or unwilling to cooperate with study procedures.
  4. Subject that has been diagnosed with Bacterial Vaginosis or Trichomonas infection within the last 3 days.
05

Study design

Phase
Phase 3
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
352 participants (actual)

Study arms

  • Experimental
    AL-SENSE diagnostic pantyliner

    AL-SENSE diagnostic pantyliner of amniotic fluid compared with standard clinical diagnosis methods.

    Device: AL-SENSE

Interventions

  • DeviceAL-SENSE

    A diagnostic pantyliner for detection of amniotic fluid leaks compared with standard clinical diagnosis

06

What researchers measure

Primary outcomes

  1. color change of the pantyliner in comparison to standard clinical diagnosis

    presence or absence of a blue or green stain on a yellow background as observed by the clinician yielded by the AL-SENSE in addition to the binary clinical diagnosis

    Time frame: 10 min

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 4, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02965430
Lead sponsor
Common Sense
Responsible party
Sponsor
First posted
Nov 16, 2016
Start date
Nov 2016
Primary completion
Mar 2017
Completion
Apr 2017
Last update
Sep 4, 2019

Study contacts

Liangkun Ma, MD
principal investigator · Peking Union Medical College Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2017. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion