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UniSA BackOff! Study: Adelaide PrenaBelt Trial

Primary Purpose

Stillbirth, Infant, Low Birth Weight, Infant, Very Low Birth Weight

Status
Terminated
Phase
Not Applicable
Locations
Australia
Study Type
Interventional
Intervention
PB2-1 prototype
PB2-2 prototype
PB2-3 prototype
PB2-4 prototype
PB2-5 prototype
Ajuvia-Active
Ajuvia-Passive
Sponsored by
Shiphrah Biomedical Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Stillbirth focused on measuring Pregnancy, Sleep, Maternal

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)FemaleAccepts Healthy Volunteers

Inclusion Criteria:

  • ≥18 years old
  • low-risk singleton pregnancy
  • in the last trimester of pregnancy (at least 28 weeks + 0 days but not more than 36 weeks + 0 days of gestation)
  • access to and ability to use iPhone (for downloading and using Ajuvia app)
  • residing in the Greater Adelaide Area.

Exclusion Criteria:

  • musculoskeletal disorder that prevents sleeping supine or on a certain side (e.g., arthritic shoulder)
  • non-English speaking and reading

Sites / Locations

  • UniSA Clinical & Health Sciences

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm Type

Other

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Control

PB2-1

PB2-2

PB2-3

PB2-4

PB2-5

Arm Description

The first night will be a control night with infrared video recording where only the Ajuvia sleep monitor is worn in passive mode so that each participant can act as her own control for comparison of treatment effect on outcomes.

During this night, the PB2-1 prototype will be worn with the Ajuvia in passive mode.

During this night, the PB2-2 prototype will be worn with the Ajuvia in passive mode.

During this night, the PB2-3 prototype will be worn with the Ajuvia in passive mode.

During this night, the PB2-4 prototype will be worn with the Ajuvia in passive mode.

During this night, the PB2-5 prototype will be worn with the Ajuvia in active mode.

Outcomes

Primary Outcome Measures

Sensitivity of Ajuvia for supine position
The sensitivity(%) of the Ajuvia in determining the pelvic supine position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Specificity of Ajuvia for supine position
The specificity(%) of the Ajuvia in determining the pelvic supine position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Sensitivity of Ajuvia for prone position
The sensitivity(%) of the Ajuvia in determining the pelvic prone position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Specificity of Ajuvia for prone position
The specificity(%) of the Ajuvia in determining the pelvic prone position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Sensitivity of Ajuvia for left tilt position
The sensitivity(%) of the Ajuvia in determining the left pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Specificity of Ajuvia for left tilt position
The specificity(%) of the Ajuvia in determining the left pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Sensitivity of Ajuvia for left lateral position
The sensitivity(%) of the Ajuvia in determining the left lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Specificity of Ajuvia for left lateral position
The specificity(%) of the Ajuvia in determining the left lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Sensitivity of Ajuvia for right tilt position
The sensitivity(%) of the Ajuvia in determining the right pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Specificity of Ajuvia for right tilt position
The specificity(%) of the Ajuvia in determining the right pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Sensitivity of Ajuvia for right lateral position
The sensitivity(%) of the Ajuvia in determining the right lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Specificity of Ajuvia for right lateral position
The specificity(%) of the Ajuvia in determining the right lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Supine Sleep Time - Control
The time (in minutes) spent sleeping in the supine position with Ajuvia in passive mode
Supine Sleep Time - PB2-1
The time (in minutes) spent sleeping in the supine position with PB2-1 and Ajuvia in passive mode
Supine Sleep Time - PB2-2
The time (in minutes) spent sleeping in the supine position with PB2-2 and Ajuvia in passive mode
Supine Sleep Time - PB2-3
The time (in minutes) spent sleeping in the supine position with PB2-3 and Ajuvia in passive mode
Supine Sleep Time - PB2-4
The time (in minutes) spent sleeping in the supine position with PB2-4 and Ajuvia in passive mode
Supine Sleep Time - PB2-5
The time (in minutes) spent sleeping in the supine position with PB2-5 and Ajuvia in active mode
Prone Sleep Time - Control
The time (in minutes) spent sleeping in the prone position with Ajuvia in passive mode
Prone Sleep Time - PB2-1
The time (in minutes) spent sleeping in the prone position with PB2-1 and Ajuvia in passive mode
Prone Sleep Time - PB2-2
The time (in minutes) spent sleeping in the prone position with PB2-2 and Ajuvia in passive mode
Prone Sleep Time - PB2-3
The time (in minutes) spent sleeping in the prone position with PB2-3 and Ajuvia in passive mode
Prone Sleep Time - PB2-4
The time (in minutes) spent sleeping in the prone position with PB2-4 and Ajuvia in passive mode
Prone Sleep Time - PB2-5
The time (in minutes) spent sleeping in the prone position with PB2-5 and Ajuvia in active mode
Left-tilt Sleep Time - Control
The time (in minutes) spent sleeping in the left pelvic tilt position with Ajuvia in passive mode
Left-tilt Sleep Time - PB2-1
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-1 and Ajuvia in passive mode
Left-tilt Sleep Time - PB2-2
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-2 and Ajuvia in passive mode
Left-tilt Sleep Time - PB2-3
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-3 and Ajuvia in passive mode
Left-tilt Sleep Time - PB2-4
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-4 and Ajuvia in passive mode
Left-tilt Sleep Time - PB2-5
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-5 and Ajuvia in active mode
Left-lateral Sleep Time - Control
The time (in minutes) spent sleeping in the left lateral position with Ajuvia in passive mode
Left-lateral Sleep Time - PB2-1
The time (in minutes) spent sleeping in the left lateral position with PB2-1 and Ajuvia in passive mode
Left-lateral Sleep Time - PB2-2
The time (in minutes) spent sleeping in the left lateral position with PB2-2 and Ajuvia in passive mode
Left-lateral Sleep Time - PB2-3
The time (in minutes) spent sleeping in the left lateral position with PB2-3 and Ajuvia in passive mode
Left-lateral Sleep Time - PB2-4
The time (in minutes) spent sleeping in the left lateral position with PB2-4 and Ajuvia in passive mode
Left-lateral Sleep Time - PB2-5
The time (in minutes) spent sleeping in the left-lateral position with PB2-5 and Ajuvia in active mode
Right-tilt Sleep Time - Control
The time (in minutes) spent sleeping in the right pelvic tilt position with Ajuvia in passive mode
Right-tilt Sleep Time - PB2-1
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-1 and Ajuvia in passive mode
Right-tilt Sleep Time - PB2-2
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-2 and Ajuvia in passive mode
Right-tilt Sleep Time - PB2-3
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-3 and Ajuvia in passive mode
Right-tilt Sleep Time - PB2-4
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-4 and Ajuvia in passive mode
Right-tilt Sleep Time - PB2-5
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-5 and Ajuvia in active mode
Right-lateral Sleep Time - Control
The time (in minutes) spent sleeping in the right lateral position with Ajuvia in passive mode
Right-lateral Sleep Time - PB2-1
The time (in minutes) spent sleeping in the right lateral position with PB2-1 and Ajuvia in passive mode
Right-lateral Sleep Time - PB2-2
The time (in minutes) spent sleeping in the right lateral position with PB2-2 and Ajuvia in passive mode
Right-lateral Sleep Time - PB2-3
The time (in minutes) spent sleeping in the right lateral position with PB2-3 and Ajuvia in passive mode
Right-lateral Sleep Time - PB2-4
The time (in minutes) spent sleeping in the right lateral position with PB2-4 and Ajuvia in passive mode
Right-lateral Sleep Time - PB2-5
The time (in minutes) spent sleeping in the right lateral position with PB2-5 and Ajuvia in active mode

Secondary Outcome Measures

Full Information

First Posted
June 16, 2020
Last Updated
August 27, 2021
Sponsor
Shiphrah Biomedical Inc.
Collaborators
University of South Australia
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1. Study Identification

Unique Protocol Identification Number
NCT04437407
Brief Title
UniSA BackOff! Study: Adelaide PrenaBelt Trial
Official Title
UniSA BackOff! Study: A Randomized, Controlled, Five-way, Cross-over Trial to Evaluate the Effect of a Positional Therapy Device on Maternal Sleeping Position in the Third Trimester of Pregnancy
Study Type
Interventional

2. Study Status

Record Verification Date
August 2021
Overall Recruitment Status
Terminated
Why Stopped
Participant dropout and technical difficulties
Study Start Date
February 1, 2020 (Actual)
Primary Completion Date
June 10, 2021 (Actual)
Study Completion Date
June 15, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Shiphrah Biomedical Inc.
Collaborators
University of South Australia

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

Brief Summary
Stillbirth (SB) is a devastating complication of pregnancy and contributes to over 2 million deaths globally every year. Over 20 million infants are born every year with low birth weight (LBW), which is associated with a twenty times increased risk of death in the first year of life and high rates of short- and long-term illnesses. Sleeping on one's back during pregnancy has recently emerged as a potential risk factor for LBW and SB in the medical literature. In high-income countries, SB rates have mostly remained the same in the past two decades and targeting modifiable risk factors could help reduce the number of SB and LBW in the population. When a pregnant woman sleeps on her back, her body position compresses underlying blood vessels and reduces blood flow to the developing baby. This body position could cause unpleasant symptoms for the mother and result in LBW or SB of her baby. Lying on her side or with a slight lateral tilt helps relieve this compression. One way to keep people off their back while sleeping is by using positional therapy (PT). It is a simple, safe, inexpensive and effective intervention for preventing people who snore or people who's breathing pauses during sleep from sleeping on their back. Reducing the amount of time pregnant women sleep on their back could help reduce SB and LBW rates. The investigators developed a PT device (PrenaBelt) and tested it in three clinical trials, which demonstrated that it significantly decreases the number of time women spend sleeping on their back. Using feedback from our previous research, the investigators developed five additional devices that will be tested in this study. The purpose of this study is to evaluate the new PrenaBelt (PB2) prototypes' ability to reduce the amount of time pregnant women sleep on their backs in the third trimester of pregnancy, validate the Ajuvia Sleep Monitor, and collect feedback on the devices. Demonstrating that the sleeping position of pregnant women can be modified through the use of a simple, inexpensive PT intervention may be one of the keys to achieving significant reductions in LBW and late SB rates in Australia and worldwide.
Detailed Description
The ability of the PB2 prototypes to reduce the amount of time pregnant women spend sleeping on their backs at night in the home setting in the third trimester of pregnancy will be evaluated via a consecutive, six-night, in-home, controlled, cross-over sleep study in third trimester pregnant women where the Ajuvia Sleep Monitor is validated against infrared video on the first night. Six nights: the first night is a control night with infrared video recording where only the Ajuvia is worn in passive mode to collect data on the participant's body position and is followed by five nights with the five different prototypes. Randomization: The order in which the different devices will be worn on the second night through fourth night, inclusive, will be determined by simple randomization. This will minimize the potential impact of changes to sleep across the nights resulting from familiarization with the equipment as the sleep tests proceed through the five non-control nights, which could bias the results. For logistical reasons, the sixth night is non-randomized and will include the Ajuvia in 'active' mode Cross-over: After the first night, on each of the subsequent four nights, the participants will "cross over" to a different PB2 device (depending on their randomization order) and "cross over" to the Ajuvia in 'active' mode on the sixth night to allow each participant to act as her own control for comparison of treatment effect on outcomes. In home: conducting this study in the home setting will allow for a more accurate representation of sleep patterns as the participants will be in the comfort of their own bed. Sleep test: The maternal pelvis position will be recorded while the participants are sleeping using the Ajuvia device. Going to bed- and wake-times, as well as experience with each device will be recorded daily in a sleep diary.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Stillbirth, Infant, Low Birth Weight, Infant, Very Low Birth Weight, Sleep-Disordered Breathing, Infant, Small for Gestational Age, Fetal Hypoxia, Pregnancy Complications, Fetal Growth Retardation
Keywords
Pregnancy, Sleep, Maternal

7. Study Design

Primary Purpose
Prevention
Study Phase
Not Applicable
Interventional Study Model
Crossover Assignment
Model Description
A consecutive, six-night, in-home, controlled, cross-over sleep study in third-trimester pregnant women to validate the ability of the PB2 and Ajuvia devices to reduce the amount of time pregnant women spend sleeping on their backs at night in the home setting in the third trimester of pregnancy
Masking
InvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
6 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Control
Arm Type
Other
Arm Description
The first night will be a control night with infrared video recording where only the Ajuvia sleep monitor is worn in passive mode so that each participant can act as her own control for comparison of treatment effect on outcomes.
Arm Title
PB2-1
Arm Type
Experimental
Arm Description
During this night, the PB2-1 prototype will be worn with the Ajuvia in passive mode.
Arm Title
PB2-2
Arm Type
Experimental
Arm Description
During this night, the PB2-2 prototype will be worn with the Ajuvia in passive mode.
Arm Title
PB2-3
Arm Type
Experimental
Arm Description
During this night, the PB2-3 prototype will be worn with the Ajuvia in passive mode.
Arm Title
PB2-4
Arm Type
Experimental
Arm Description
During this night, the PB2-4 prototype will be worn with the Ajuvia in passive mode.
Arm Title
PB2-5
Arm Type
Experimental
Arm Description
During this night, the PB2-5 prototype will be worn with the Ajuvia in active mode.
Intervention Type
Device
Intervention Name(s)
PB2-1 prototype
Intervention Description
PB2-1 prototype is a belt-like wearable device similar to the original PrenaBelt designed for pregnant women that permits supine positioning of the pelvis but, when in this position, provides subtle pressure points to the user's body and thereby activates the body's natural mechanism to reposition itself to relieve discomfort. It is expected to significantly decrease the amount of time a pregnant woman's pelvis is in the supine position overnight while promoting comfortable sleep.
Intervention Type
Device
Intervention Name(s)
PB2-2 prototype
Intervention Description
PB2-2 prototype is a belt-like wearable device designed for pregnant women. When placed on the woman's back, this device prevents the pelvis from achieving a supine orientation by maintaining at least fifteen degrees of right or left lateral pelvic tilt. It is expected to significantly decrease the amount of time a pregnant woman's pelvis is in the supine position overnight while promoting comfortable sleep.
Intervention Type
Device
Intervention Name(s)
PB2-3 prototype
Intervention Description
PB2-3 prototype is a belt-like wearable device designed for pregnant women. When placed on the woman's back, this device prevents the pelvis from achieving a supine orientation by maintaining at least fifteen degrees of right or left lateral pelvic tilt. It is expected to significantly decrease the amount of time a pregnant woman's pelvis is in the supine position overnight while promoting comfortable sleep.
Intervention Type
Device
Intervention Name(s)
PB2-4 prototype
Intervention Description
PB2-4 prototype is a belt-like wearable device designed for pregnant women that prevents the user from achieving a supine position as the device allows right and left lateral pelvic tilt but prevents the user's pelvis from settling supine due to virtue of its design. It is expected to significantly decrease the amount of time a pregnant woman's pelvis is in the supine position overnight while promoting comfortable sleep.
Intervention Type
Device
Intervention Name(s)
PB2-5 prototype
Intervention Description
PB2-5 prototype is a belt-like wearable device designed for pregnant women that does not provide positional therapy. It can be worn anytime as a maternity support belt.
Intervention Type
Device
Intervention Name(s)
Ajuvia-Active
Intervention Description
Ajuvia Sleep Monitor senses the user's body position and can be used in passive or active mode with or without the PB2 prototypes. In the active mode, it alerts the woman when her pelvis is in the supine position through a gentle vibratory alarm.
Intervention Type
Device
Intervention Name(s)
Ajuvia-Passive
Intervention Description
Ajuvia Sleep Monitor senses the user's body position and can be used in passive or active mode with or without the PB2 prototypes. In the passive mode, it measures and records the position of the pelvis but does not alert the woman.
Primary Outcome Measure Information:
Title
Sensitivity of Ajuvia for supine position
Description
The sensitivity(%) of the Ajuvia in determining the pelvic supine position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Specificity of Ajuvia for supine position
Description
The specificity(%) of the Ajuvia in determining the pelvic supine position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Sensitivity of Ajuvia for prone position
Description
The sensitivity(%) of the Ajuvia in determining the pelvic prone position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Specificity of Ajuvia for prone position
Description
The specificity(%) of the Ajuvia in determining the pelvic prone position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Sensitivity of Ajuvia for left tilt position
Description
The sensitivity(%) of the Ajuvia in determining the left pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Specificity of Ajuvia for left tilt position
Description
The specificity(%) of the Ajuvia in determining the left pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Sensitivity of Ajuvia for left lateral position
Description
The sensitivity(%) of the Ajuvia in determining the left lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Specificity of Ajuvia for left lateral position
Description
The specificity(%) of the Ajuvia in determining the left lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Sensitivity of Ajuvia for right tilt position
Description
The sensitivity(%) of the Ajuvia in determining the right pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Specificity of Ajuvia for right tilt position
Description
The specificity(%) of the Ajuvia in determining the right pelvic tilt position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Sensitivity of Ajuvia for right lateral position
Description
The sensitivity(%) of the Ajuvia in determining the right lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Specificity of Ajuvia for right lateral position
Description
The specificity(%) of the Ajuvia in determining the right lateral pelvic position during night sleep against the gold-standard of position as determined by review of infrared video will be calculated using a two-by-two contingency table.
Time Frame
1 night (approximately 8 hours)
Title
Supine Sleep Time - Control
Description
The time (in minutes) spent sleeping in the supine position with Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Supine Sleep Time - PB2-1
Description
The time (in minutes) spent sleeping in the supine position with PB2-1 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Supine Sleep Time - PB2-2
Description
The time (in minutes) spent sleeping in the supine position with PB2-2 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Supine Sleep Time - PB2-3
Description
The time (in minutes) spent sleeping in the supine position with PB2-3 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Supine Sleep Time - PB2-4
Description
The time (in minutes) spent sleeping in the supine position with PB2-4 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Supine Sleep Time - PB2-5
Description
The time (in minutes) spent sleeping in the supine position with PB2-5 and Ajuvia in active mode
Time Frame
1 night (approximately 8 hours)
Title
Prone Sleep Time - Control
Description
The time (in minutes) spent sleeping in the prone position with Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Prone Sleep Time - PB2-1
Description
The time (in minutes) spent sleeping in the prone position with PB2-1 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Prone Sleep Time - PB2-2
Description
The time (in minutes) spent sleeping in the prone position with PB2-2 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Prone Sleep Time - PB2-3
Description
The time (in minutes) spent sleeping in the prone position with PB2-3 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Prone Sleep Time - PB2-4
Description
The time (in minutes) spent sleeping in the prone position with PB2-4 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Prone Sleep Time - PB2-5
Description
The time (in minutes) spent sleeping in the prone position with PB2-5 and Ajuvia in active mode
Time Frame
1 night (approximately 8 hours)
Title
Left-tilt Sleep Time - Control
Description
The time (in minutes) spent sleeping in the left pelvic tilt position with Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-tilt Sleep Time - PB2-1
Description
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-1 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-tilt Sleep Time - PB2-2
Description
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-2 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-tilt Sleep Time - PB2-3
Description
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-3 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-tilt Sleep Time - PB2-4
Description
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-4 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-tilt Sleep Time - PB2-5
Description
The time (in minutes) spent sleeping in the left pelvic tilt position with PB2-5 and Ajuvia in active mode
Time Frame
1 night (approximately 8 hours)
Title
Left-lateral Sleep Time - Control
Description
The time (in minutes) spent sleeping in the left lateral position with Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-lateral Sleep Time - PB2-1
Description
The time (in minutes) spent sleeping in the left lateral position with PB2-1 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-lateral Sleep Time - PB2-2
Description
The time (in minutes) spent sleeping in the left lateral position with PB2-2 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-lateral Sleep Time - PB2-3
Description
The time (in minutes) spent sleeping in the left lateral position with PB2-3 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-lateral Sleep Time - PB2-4
Description
The time (in minutes) spent sleeping in the left lateral position with PB2-4 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Left-lateral Sleep Time - PB2-5
Description
The time (in minutes) spent sleeping in the left-lateral position with PB2-5 and Ajuvia in active mode
Time Frame
1 night (approximately 8 hours)
Title
Right-tilt Sleep Time - Control
Description
The time (in minutes) spent sleeping in the right pelvic tilt position with Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-tilt Sleep Time - PB2-1
Description
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-1 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-tilt Sleep Time - PB2-2
Description
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-2 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-tilt Sleep Time - PB2-3
Description
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-3 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-tilt Sleep Time - PB2-4
Description
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-4 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-tilt Sleep Time - PB2-5
Description
The time (in minutes) spent sleeping in the right pelvic tilt position with PB2-5 and Ajuvia in active mode
Time Frame
1 night (approximately 8 hours)
Title
Right-lateral Sleep Time - Control
Description
The time (in minutes) spent sleeping in the right lateral position with Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-lateral Sleep Time - PB2-1
Description
The time (in minutes) spent sleeping in the right lateral position with PB2-1 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-lateral Sleep Time - PB2-2
Description
The time (in minutes) spent sleeping in the right lateral position with PB2-2 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-lateral Sleep Time - PB2-3
Description
The time (in minutes) spent sleeping in the right lateral position with PB2-3 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-lateral Sleep Time - PB2-4
Description
The time (in minutes) spent sleeping in the right lateral position with PB2-4 and Ajuvia in passive mode
Time Frame
1 night (approximately 8 hours)
Title
Right-lateral Sleep Time - PB2-5
Description
The time (in minutes) spent sleeping in the right lateral position with PB2-5 and Ajuvia in active mode
Time Frame
1 night (approximately 8 hours)

10. Eligibility

Sex
Female
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: ≥18 years old low-risk singleton pregnancy in the last trimester of pregnancy (at least 28 weeks + 0 days but not more than 36 weeks + 0 days of gestation) access to and ability to use iPhone (for downloading and using Ajuvia app) residing in the Greater Adelaide Area. Exclusion Criteria: musculoskeletal disorder that prevents sleeping supine or on a certain side (e.g., arthritic shoulder) non-English speaking and reading
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Jane Warland, PhD
Organizational Affiliation
University of South Australia
Official's Role
Principal Investigator
Facility Information:
Facility Name
UniSA Clinical & Health Sciences
City
Adelaide
State/Province
South Australia
ZIP/Postal Code
5000
Country
Australia

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
30158217
Citation
Kember AJ, Scott HM, O'Brien LM, Borazjani A, Butler MB, Wells JH, Isaac A, Chu K, Coleman J, Morrison DL. Modifying maternal sleep position in the third trimester of pregnancy with positional therapy: a randomised pilot trial. BMJ Open. 2018 Aug 29;8(8):e020256. doi: 10.1136/bmjopen-2017-020256.
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Coleman J, Okere M, Seffah J, Kember A, O'Brien LM, Borazjani A, Butler M, Wells J, MacRitchie S, Isaac A, Chu K, Scott H. The Ghana PrenaBelt trial: a double-blind, sham-controlled, randomised clinical trial to evaluate the effect of maternal positional therapy during third-trimester sleep on birth weight. BMJ Open. 2019 May 1;9(4):e022981. doi: 10.1136/bmjopen-2018-022981.
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PubMed Identifier
31193832
Citation
Cronin RS, Li M, Thompson JMD, Gordon A, Raynes-Greenow CH, Heazell AEP, Stacey T, Culling VM, Bowring V, Anderson NH, O'Brien LM, Mitchell EA, Askie LM, McCowan LME. An Individual Participant Data Meta-analysis of Maternal Going-to-Sleep Position, Interactions with Fetal Vulnerability, and the Risk of Late Stillbirth. EClinicalMedicine. 2019 Apr 2;10:49-57. doi: 10.1016/j.eclinm.2019.03.014. eCollection 2019 Apr.
Results Reference
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PubMed Identifier
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Citation
O'Brien LM, Warland J, Stacey T, Heazell AEP, Mitchell EA; STARS Consortium. Maternal sleep practices and stillbirth: Findings from an international case-control study. Birth. 2019 Jun;46(2):344-354. doi: 10.1111/birt.12416. Epub 2019 Jan 18.
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PubMed Identifier
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Anderson NH, Gordon A, Li M, Cronin RS, Thompson JMD, Raynes-Greenow CH, Heazell AEP, Stacey T, Culling VM, Wilson J, Askie LM, Mitchell EA, McCowan LME. Association of Supine Going-to-Sleep Position in Late Pregnancy With Reduced Birth Weight: A Secondary Analysis of an Individual Participant Data Meta-analysis. JAMA Netw Open. 2019 Oct 2;2(10):e1912614. doi: 10.1001/jamanetworkopen.2019.12614.
Results Reference
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PubMed Identifier
29910107
Citation
Warland J, Dorrian J, Morrison JL, O'Brien LM. Maternal sleep during pregnancy and poor fetal outcomes: A scoping review of the literature with meta-analysis. Sleep Med Rev. 2018 Oct;41:197-219. doi: 10.1016/j.smrv.2018.03.004. Epub 2018 Mar 27.
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PubMed Identifier
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Citation
Warland J, Dorrian J, Kember AJ, Phillips C, Borazjani A, Morrison JL, O'Brien LM. Modifying Maternal Sleep Position in Late Pregnancy Through Positional Therapy: A Feasibility Study. J Clin Sleep Med. 2018 Aug 15;14(8):1387-1397. doi: 10.5664/jcsm.7280.
Results Reference
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PubMed Identifier
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Citation
McCowan LME, Thompson JMD, Cronin RS, Li M, Stacey T, Stone PR, Lawton BA, Ekeroma AJ, Mitchell EA. Going to sleep in the supine position is a modifiable risk factor for late pregnancy stillbirth; Findings from the New Zealand multicentre stillbirth case-control study. PLoS One. 2017 Jun 13;12(6):e0179396. doi: 10.1371/journal.pone.0179396. eCollection 2017.
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Gordon A, Raynes-Greenow C, Bond D, Morris J, Rawlinson W, Jeffery H. Sleep position, fetal growth restriction, and late-pregnancy stillbirth: the Sydney stillbirth study. Obstet Gynecol. 2015 Feb;125(2):347-355. doi: 10.1097/AOG.0000000000000627.
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Platts J, Mitchell EA, Stacey T, Martin BL, Roberts D, McCowan L, Heazell AE. The Midland and North of England Stillbirth Study (MiNESS). BMC Pregnancy Childbirth. 2014 May 21;14:171. doi: 10.1186/1471-2393-14-171.
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Warland J, Mitchell EA. A triple risk model for unexplained late stillbirth. BMC Pregnancy Childbirth. 2014 Apr 14;14:142. doi: 10.1186/1471-2393-14-142.
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O'Brien LM, Warland J. Typical sleep positions in pregnant women. Early Hum Dev. 2014 Jun;90(6):315-7. doi: 10.1016/j.earlhumdev.2014.03.001. Epub 2014 Mar 21.
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Owusu JT, Anderson FJ, Coleman J, Oppong S, Seffah JD, Aikins A, O'Brien LM. Association of maternal sleep practices with pre-eclampsia, low birth weight, and stillbirth among Ghanaian women. Int J Gynaecol Obstet. 2013 Jun;121(3):261-5. doi: 10.1016/j.ijgo.2013.01.013. Epub 2013 Mar 15.
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Stacey T, Thompson JM, Mitchell EA, Ekeroma AJ, Zuccollo JM, McCowan LM. Association between maternal sleep practices and risk of late stillbirth: a case-control study. BMJ. 2011 Jun 14;342:d3403. doi: 10.1136/bmj.d3403.
Results Reference
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UniSA BackOff! Study: Adelaide PrenaBelt Trial

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