ClinicalTrials.gg
CompletedNCT05859139PEGASUS-IIUpdated Oct 18, 2024

Scaling a Decision Aid on Prenatal Screening for Trisomy 21, 18 and 13

An interventional study of DA Scaling Strategies in Decision Aid, sponsored by CHU de Quebec-Universite Laval. Completed at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-10-18.

Sponsored by CHU de Quebec-Universite Laval · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
887
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This research project aims at assessing the effectiveness of a decision aid (DA) scaling intervention within the context of prenatal screening for trisomy 21, 18 and 13. The primary outcome is the level of involvement of pregnant women, their partners, and health professionals in shared decision-making (SDM) in the context of prenatal screening for trisomy 21, 18 and 13. The secondary outcome is the rate of use of online and paper versions of the DA by pregnant women, their partners and health professionals. The investigator hypothesize that the DA scaling strategies will increase the level of involvement of pregnant women, their partners (where appropriate), and health professionals in SDM.

Read the detailed description

Making a decision about prenatal screening for trisomy 21, 18 and 13 can be difficult. This is why it is important for pregnant women and their partners to be informed, accompanied and supported by health care providers. Involving them in shared decision-making (SDM) would allow them to meet their decision-making needs in this context. In addition, the use of a decision aid (DA) would facilitate SDM. To help pregnant women and their partners make informed decisions based on their values, needs and preferences, a DA has been developed. The DA was developed according to recommendations from pregnant women and their partners as well as health professionals who found it relevant. Moreover, the DA scaling up strategies were developed. This research project aim is to assess the effectiveness of the DA scaling strategies on the level of involvement of pregnant women, their partners, and health professionals in SDM on prenatal screening for trisomy 21, 18 and 13. This study, conducted in Quebec, is a randomized cluster stepped wedge trial. The study will be conducted in five periods, each corresponding to a data collection period. During the first period, all groups of clusters will be in control conditions, where health professionals will provide usual prenatal care to pregnant women without DA scaling strategies. Then, following a regular interval of 10 weeks, each group will be exposed to the intervention in 4 stages at the beginning of the periods. Once a group has received the intervention, they will access it until the end of the study. Participants are prenatal services (randomization unit), health professionals (obstetricians-gynecologists, family physicians, midwives, nurses and all other health professionals involved in prenatal care) and pregnant women as well as their partners. The intervention will consist of a DA scaling strategies, including but not limited to an online version of the DA and an online training on SDM incorporating the use of the DA. The investigators will recruit at least 28 prenatal services (study sites) and 35 pregnant women per site. The primary outcome (the level of involvement of study participants in SDM in the context of prenatal screening for trisomy 21, 18 and 13) will be measured with the validated SDM-Q-9 scale, which will be completed by pregnant women and their partners. The primary secondary outcome will be the rate of use of online and paper versions of the DA by pregnant women and their partners.

02

Conditions studied

  • Decision Aid

Browse trials for

Keywords

  • Decision Aid
  • Health Professionals
  • Scaling strategies
  • Online training
  • Prenatal screening
  • Shared decision-making
  • Trisomy
  • Pregnant women
  • Prenatal services
03

In context

Trisomy

9 studies on the registry are indexed under Trisomy; 2 are open to participants now.

Browse Trisomy studies →

Lead sponsor

CHU de Quebec-Universite Laval is the lead sponsor of 137 studies on the registry; 27 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Prenatal services (study sites) : To be eligible, prenatal services must
  • be located in Quebec province
  • be family medicine groups, gynecology and obstetrics departments or birth centers, other type of health facility involved in prenatal care
  • agree to participate in our study including the recruitment of approximately 35 pregnant women over a total period of 50 weeks
  • confirm that they will follow the research protocol.

    • Health professionals

To be eligible, health professionals must:

  • be involved in prenatal care and working in a site participating in this study
  • be involved in the follow-up of pregnancies
  • be involved in the decision-making process in the context of prenatal screening for trisomiy 21, 18 and 13,
  • be referred by their prenatal service
  • understand French or English,
  • consent to participate in the study
  • medical residents and interns in midwifery practice, referred by participating prenatal service, are eligible too.

    • Pregnant women and their partners To be eligible, pregnant women and their partners must
  • be 18 years of age or older
  • have not yet decided whether or not to have prenatal testing for trisomy 21, 18 or 13 (usually before 13 weeks of pregnancy)
  • be followed in one of the prenatal services participating in this study
  • be able to read and understand French or English
  • have the capacity to verbally consent to participate in the study or sign the consent form

Exclusion criteria

Exclusion Criteria:

  • Pregnant women and their partners The pregnant woman who have any medical complications associated or not with pregnancy (e.g. diabetes, hypertension, multiple pregnancy) is not eligible to this study
  • Health professionals Health professionals working in more than one participating prenatal site as full- time or part-time employee are not eligible to this study
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Outcomes assessor)
Enrollment
887 participants (actual)

Study arms

  • Experimental
    Intervention introduced to group 1

    The intervention is introduced to the first group (G1) of clusters.

    Other: DA Scaling Strategies

  • Experimental
    Intervention introduced to group 2

    The intervention is introduced to the second group (G2) of clusters and G1 remains in intervention conditions.

    Other: DA Scaling Strategies

  • Experimental
    Intervention introduced to group 3

    The intervention is introduced to the third group (G3) of clusters and G1 and G2 remains in intervention conditions.

    Other: DA Scaling Strategies

  • Experimental
    Intervention introduced to group 4

    The intervention is introduced to the fourth group (G4) of clusters and G1, G2 and G3 remains in intervention conditions.

    Other: DA Scaling Strategies

Interventions

  • OtherDA Scaling Strategies

    For this study the intervention will consist of different DA scaling strategies : 1) dissemination of an online DA; 2) dissemination of a paper-based DA; 3) online training for healthcare professionals.

06

What researchers measure

Primary outcomes

  1. Level of SDM adoption

    The level of SDM adoption will be measured through the measurement of the level of involvement of health professionals and pregnant women (and their partners) in the decision regarding to have or not a prenatal screening test for trisomy 21, 18 and 13. The SDM adoption will be measured with the SDM-Q-9 scale, which is a validated measurement instrument. The SDM-Q-9 scale is well understood by patients and has the potential to collect valid data on the perceived involvement of patients in SDM. The SDM-Q-9 scale consists of 9 items, each corresponding to the expected behaviour of the health professional in the SDM. Each of the 9 items is rated by a six-point Likert scale (0 = Totally Disagree to 5 = Totally Agree) where higher scores reflect higher level of SDM adoption.

    Time frame: At the 23rd week of pregnancy

Secondary outcomes

  1. The rate of the DA utilization by pregnant women, their partners and health professionals

    At the 23rd week of pregnancy, pregnant women and their partners will answer questions about whether they used the DA to help them make their decision. For each intervention period of the study, the research team will compile the number of utilization of the online DA as well as the city of the users. The research team will also track the number of hard copies of the DA used by each prenatal service recruited.

    Time frame: At the 23rd week of pregnancy (for pregnant women and their partners), and the research team will compile the information on the online and hard copies of DA utilization during weeks 10 to 50 of the study (Intervention phases)

  2. Perceived role in decision-making

    Pregnant women and their partners will be be asked to assess their perceived role in deciding whether or not to have prenatal screening for trisomies 21, 18 and 13. The investigators will use a validated 1-question scale with five options of responses (A, B, C, D and E). The investigators will combine choices A and B to identify the proportion of pregnant women (and their partners) who will have made the decision alone, choice C to identify the frequency of SDM, and thte investigators will combine D and E choices to identify the proportion of pregnant women (and their partners) who have had a passive role.

    Time frame: At the 23rd week of pregnancy

  3. DA appreciation

    This study will assess the participants' general appreciation of the DA. Once pregnant women and their partners have used the online or paper DA, they will respond to a questionnaire (questions with different options of responses) assessing their appreciation on the DA (on its presentation, acceptability, usefulness, neutrality, quantity and quality of information, etc.). Questions to be responded to will be adapted according to the version used (online or paper based DA).

    Time frame: At the 23rd week of pregnancy

  4. Appreciation of the online SDM training

    Once health care professionals have completed the online SDM training, they will respond to questions aiming at assessing their overall appreciation (on its presentation, acceptability, usefulness, quantity and quality of information, etc.). Open-ended questions will allow them to say what they liked or did not like, to offer suggestions for improvement or to add any other comments.

    Time frame: Immediately after the online training

  5. Decisional conflict

    To measure the level of decisional conflict among pregnant women and their partners, the investigators will use the validated scale that assess the decisional conflict. The scale has 16 items evaluated with a 5-point Likert scale (1 = Strongly agree, 5 = Strongly disagree).

    Time frame: At the 23rd week of pregnancy

  6. Decisions made and chosen tests

    Pregnant women and their partners will answer questions about what was their decision as to whether or not to do a screening test. If they chose to do a screening test, what was the test(s) and whether the test(s) was done in the public or private network. In addition, they will be asked if they went further for a diagnostic test.

    Time frame: At the 23rd week of pregnancy

  7. Facilitators and barriers to the use of the DA

    Pregnant women and their partners will be asked open-ended questions to find out what helped, or allowed, and what limited, or prevented them from using our DA in the format used (paper based or online DA).

    Time frame: At the 23rd week of pregnancy

  8. Duration of the prenatal consultation

    The investigators will ask pregnant women and their partners how long the targeted prenatal consultation (with the discussion on prenatal testing ) lasted.

    Time frame: At the 23rd week of pregnancy

  9. Efforts and costs related to the use of the DA

    Pregnant women and their partners will answer questions about whether they used our DA, and if so, will follow questions aiming at assessing the energy or effort invested in using it and the possibility that the use of the DA was associated with financial expenses or losses.

    Time frame: At the 23rd week of pregnancy

  10. Efforts and costs related to the use and the distribution of the DA

    The investigators will ask prenatal service leaders or champions what level of effort and energy they had to invest to use and/or distribute the DA to pregnant women and their partners. In addition, the investigators will ask them if the use and/or distribution of the DA caused them financial expenses or losses, or if this required more human resources.

    Time frame: Immediately after the intervention

  11. DA use fidelity for pregnant women and their partners

    After deciding whether to do or not the prenatal screening test, pregnant women and their partners will answer questions to assess the extent to which they have used the tool (e.g. number of sections read and/or completed) and when they used it. These questions are used to assess whether pregnant women (and their partners) used the tool as intended.

    Time frame: At the 23rd week of pregnancy

  12. DA use fidelity for healthcare providers

    A set of questions will be asked to pregnant women and their partners to assess whether a person has given them the DA (in hard copy or the internet link), and if so, by whom and when. The investigators also want to know if the healthcare providers used the DA during the prenatal consultation and how.

    Time frame: At the 23rd week of pregnancy

  13. Long-term use of DA and proposed adaptations for the DA

    Pregnant women and their partners will answer questions to assess whether they intend to reuse the DA for a future pregnancy or if they would like to use another DA for another medical decision.

    Time frame: At the 23rd week of pregnancy

07

Study locations

1 site
  • VITAM - Centre de recherche en santé durable, CIUSSS de la Capitale-Nationale
    Québec, G1G 2G1, Canada
08

References and documents

Related links

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Feb 2023 to primary completion in Jul 2024, 17 months.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 29, 2023
First posted
May 15, 2023
StartActual
Feb 1, 2023
Primary completionActual
Jul 31, 2024
CompletionActual
Jul 31, 2024
Last update
Oct 18, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 18, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05859139
Responsible party
France Legare (Professor, CHU de Quebec-Universite Laval) — Principal investigator
First posted
May 15, 2023
Start date
Feb 1, 2023
Primary completion
Jul 31, 2024
Completion
Jul 31, 2024
Last update
Oct 18, 2024

Study contacts

France Légaré, Ph.D
principal investigator · Laval University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2024. 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