Staphylococcus Aureus BacteremiaSIMPLY-SNAPNCT06168474
Evaluating Simplified Layered Consent for Clinical Trials
A study testing Simplified layered consent form and Full-length consent form in people with Staphylococcus Aureus Bacteremia, run by Sunnybrook Health Sciences Centre at 6 sites in Canada.
Trial summary
The goal of this clinical trial (the SIMPLY-SNAP trial) is to compare a simplified layered consent form to a full-length consent form for use during the informed consent process for a larger clinical trial of treatment of Staphylococcus aureus bloodstream infection (the SNAP trial). Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Staphylococcus Aureus Bacteremia
- What is being tested?
- Simplified layered consent form and Full-length consent form
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 347 participants
- Where
- 6 sitesCanada
- Study dates
- 28 Nov 2023to 19 Apr 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- All inclusion criteria from the larger SNAP trial:
- S. aureus complex grown from ≥1 blood culture
- Admitted to a participating hospital at the time of eligibility assessment
- Specific additional inclusion criteria for SIMPLY-SNAP:
- Admitted to participating hospital of SIMPLY-SNAP
- Self-reported proficiency in English or French adequate to be able to participate in consent process carried out solely in English or French (as the supplementary consent materials required in the simplified consent process are currently only available in these two languages)
Who cannot join
- All exclusion criteria from larger SNAP trial:
- Time of anticipated platform entry is greater than 72 hours post collection of the index blood culture
- Polymicrobial bacteremia, defined as more than one organism in the index blood cultures, excluding those organisms judged to be contaminants by either the microbiology laboratory or treating clinician
- Patient currently being treated with a systemic antibacterial agent that cannot be ceased
- Known previous participation in SNAP
- Known positive blood culture for S. aureus between 72 hours and 180 days prior to the time of eligibility assessment
Show all 11Show fewer
- Treating team deems enrolment in the study is not in the best interest of the patient
- Treating team believes that death is imminent and inevitable
- Patient is for end-of-life care and antibiotic treatment is considered inappropriate
- Patient <18 years of age and paediatric recruitment not approved at recruiting site
- Specific additional exclusion criteria for SIMPLY-SNAP: None
Trial locations and contacts
6 sites in 1 country.
6 sites in 1 country
Canada6 sites
University of Calgary, Foothills Medical Centre, Peter Lougheed Centre, Rockyview Hospital, South Health Campus
Calgary, Alberta
Hamilton General Hospital
Hamilton, Ontario
Montreal General Hospital
Montreal, Quebec
The Ottawa Hospital
Ottawa, Ontario
Royal Victoria Hospital
Québec, Quebec
Sunnybrook Health Sciences Centre
Toronto, Ontario, M4N3M5
About this study
Official title: Evaluating the Impact of a SIMPlified LaYered Consent Process on Recruitment of Potential Participants to the Staphylococcus Aureus Network Adaptive Platform Trial: a Pragmatic Nested Randomized Clinical Trial
The goal of this clinical trial (the SIMPLY-SNAP trial) is to compare a simplified layered consent form to a full-length consent form for use during the informed consent process for a larger clinical trial of treatment of Staphylococcus aureus bloodstream infection (the SNAP trial).
The main questions it aims to answer are:
Read more
- Does use of a simplified layered consent form lead to an increased recruitment rate to the SNAP trial?
- Does use of a simplified layer consent form lead to increased participant understanding of the SNAP trial and increased participant satisfaction with the informed consent process?
Participants will be randomized to either the full-length informed consent form or the simplified layered consent form containing links to optional supplementary information or videos. Research staff will use the assigned form to explain the SNAP trial to participants. After consent, participants will be evaluated on their understanding of the SNAP trial and satisfaction with the consent process using a questionnaire.
- Conditions
- Staphylococcus Aureus Bacteremia
- Being tested
- Simplified layered consent form, Full-length consent form
- Keywords
- informed consent, research ethics, clinical trials, Staphylococcus aureus bacteremia, equity, diversity and inclusion
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Simplified layered consent formOther
The simplified consent form includes all essential elements of trial consent including an explanation of the trial procedures, data and sample collection, and follow-up information. The form also outlines important ethical considerations for patients, such as confidentiality, regulatory and safety requirements, the ability to drop out, and the necessary process and contact numbers for grievances or feedback. In addition to the text, the form includes links to additional written information and videos that can be accessed on top of the simplified informed consent form (i.e., the additional layers in the layered consent process). These materials are hosted on the main SNAP trial website (https://www.snaptrial.com.au/patients) and are available in English and French. Participants will be able to access these directly through embedded hyperlinks using provided electronic tablets.
Full-length consent formOther
The full-length informed consent form contains all information upfront. Links to additional information will not be provided on the form but are freely available on the Internet should the participant wish to access them.
| Study group | Role | What they receive |
|---|---|---|
| Simplified layered consent process | Experimental | For participants randomized to the SIMPLY-SNAP experimental group, a simplified layered consent process will be used to explain information for the SNAP trial. The research staff member obtaining consent will provide a standardized explanation, providing summarized information in simple English or French contained in a 4-page concise participant information sheet. Throughout the consent process, the research staff member will answer any questions that the participant has, to reflect routine consent discussion practice. Receives: Other: Simplified layered consent form |
| Full-length consent form | Active comparator | For participants randomized to the control group, the existing consent process will be used including going through the currently approved full-length informed consent form. The research staff member will provide an explanation using the full-length informed consent form as per standard clinical trial procedures. Similarly, throughout the consent process, the research staff member will answer any participant questions as per normal procedures. Receives: Other: Full-length consent form |
What is being measured
The primary outcome is the main question the study is designed to answer.
Proportion of patients recruited to SNAP
The number of patients who consented and were randomized in the SNAP trial, divided by the total number of patient eligible for the SNAP trial and randomized in SIMPLY-SNAP.
Measured: 1 day
Secondary outcomes (4)
Participant understanding of the clinical trial
Understanding of the clinical trial will be measured by a modified Consent Understanding Evaluation (CUE) tool. This is a questionnaire that comprises a list of open and closed-ended questions designed to evaluate a participant's understanding of the clinical trial they just enrolled in. It is adapted from previous similar trials evaluating adjunctive consent interventions but modified to the context of SNAP. The score ranges from 0 (worst understanding) to 15 (best understanding).
Measured: Within 3 days after the consent process
Participant satisfaction with the consent process
Scored by 11-point Likert scale (0 to 10; 0 being not satisfied at all and 10 being extremely satisfied).
Measured: Within 3 days after the consent process
Research staff satisfaction with the consent process
Scored by 11-point Likert scale (0 to 10; 0 being not satisfied at all and 10 being extremely satisfied).
Measured: 1 day
Time taken for entire consent process
In minutes
Measured: 1 day
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Dec 2023
- Study start28 Nov 2023
- Primary completion16 Apr 2026
- Study completion19 Apr 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Staphylococcus Aureus BacteremiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 347 participants (actual)
Sponsor and investigators
- Lead sponsor
- Sunnybrook Health Sciences Centre
- Sponsor type
- University, hospital or other
- Collaborators
- McGill University Health Centre/Research Institute of the McGill University Health Centre
- Responsible party
- Principal investigator, Sean Ong, Sunnybrook Health Sciences Centre
- Investigators
- Sean WX Ong, MBBS, Principal investigator, University of Toronto
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06168474
- Sponsor's protocol ID
- 496741
- Acronym
- SIMPLY-SNAP
- Status last verified
- Apr 2026
- First submitted
- 23 Nov 2023
- Last updated
- 19 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Ong SWX, Lee TC, Fowler RA, Mahar R, Pinto RL, Rishu A, Petrella L, Whiteway L, Cheng M, McDonald E, Johnstone J, Mertz D, Kandel C, Somayaji R, Davis JS, Tong SYC, Daneman N. Evaluating the impact of a SIMPlified LaYered consent process on recruitment of potential participants to the Staphylococcus aureus Network Adaptive Platform trial: study protocol for a multicentre pragmatic nested randomised clinical trial (SIMPLY-SNAP trial). BMJ Open. 2024 Jan 18;14(1):e083239. doi: 10.1136/bmjopen-2023-083239.
PubMed 38238170
Study at a glance
From the registry record, last updated by the sponsor on 19 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluating the Impact of a SIMPlified LaYered Consent Process on Recruitment of Potential Participants to the Staphylococcus Aureus Network Adaptive Platform Trial: a Pragmatic Nested Randomized Clinical Trial
- ClinicalTrials.gov ID
- NCT06168474
- Acronym / sponsor ID
- SIMPLY-SNAP / 496741
- Conditions
- Staphylococcus Aureus Bacteremia
- Keywords
- informed consent, research ethics, clinical trials, Staphylococcus aureus bacteremia, equity, diversity and inclusion
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 347 participants (actual)
- Lead sponsor
- Sunnybrook Health Sciences CentreUniversity, hospital or other
- Collaborators
- McGill University Health Centre/Research Institute of the McGill University Health Centre
- Study start
- 28 Nov 2023 (actual)
- Primary completion
- 16 Apr 2026 (actual)
- Study completion
- 19 Apr 2026 (actual)
- First posted
- 13 Dec 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this clinical trial (the SIMPLY-SNAP trial) is to compare a simplified layered consent form to a full-length consent form for use during the informed consent process for a larger clinical trial of treatment of Staphylococcus aureus bloodstream infection (the SNAP trial).
The main questions it aims to answer are:
- Does use of a simplified layered consent form lead to an increased recruitment rate to the SNAP trial?
- Does use of a simplified layer consent form lead to increased participant understanding of the SNAP trial and increased participant satisfaction with the informed consent process?
Participants will be randomized to either the full-length informed consent form or the simplified layered consent form containing links to optional supplementary information or videos. Research staff will use the assigned form to explain the SNAP trial to participants. After consent, participants will be evaluated on their understanding of the SNAP trial and satisfaction with the consent process using a questionnaire.
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Simplified layered consent process | Experimental | Other: Simplified layered consent formFor participants randomized to the SIMPLY-SNAP experimental group, a simplified layered consent process will be used to explain information for the SNAP trial. The research staff member obtaining consent will provide a standardized explanation, providing summarized information in simple English or French contained in a 4-page concise participant information sheet. Throughout the consent process, the research staff member will answer any questions that the participant has, to reflect routine consent discussion practice. |
| Full-length consent form | Active comparator | Other: Full-length consent formFor participants randomized to the control group, the existing consent process will be used including going through the currently approved full-length informed consent form. The research staff member will provide an explanation using the full-length informed consent form as per standard clinical trial procedures. Similarly, throughout the consent process, the research staff member will answer any participant questions as per normal procedures. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (6 listed)
- All inclusion criteria from the larger SNAP trial:
- Specific additional inclusion criteria for SIMPLY-SNAP:
Key exclusion criteria (11 listed)
- All exclusion criteria from larger SNAP trial:
- Specific additional exclusion criteria for SIMPLY-SNAP: None
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Simplified layered consent formThe simplified consent form includes all essential elements of trial consent including an explanation of the trial procedures, data and sample collection, and follow-up information. The form also outlines important ethical considerations for patients, such as confidentiality, regulatory and safety requirements, the ability to drop out, and the necessary process and contact numbers for grievances or feedback. In addition to the text, the form includes links to additional written information and videos that can be accessed on top of the simplified informed consent form (i.e., the additional layers in the layered consent process). These materials are hosted on the main SNAP trial website (https://www.snaptrial.com.au/patients) and are available in English and French. Participants will be able to access these directly through embedded hyperlinks using provided electronic tablets. | Other | Simplified layered consent process |
| Full-length consent formThe full-length informed consent form contains all information upfront. Links to additional information will not be provided on the form but are freely available on the Internet should the participant wish to access them. | Other | Full-length consent form |
Primary outcome
Proportion of patients recruited to SNAP
Time frame: 1 day
The number of patients who consented and were randomized in the SNAP trial, divided by the total number of patient eligible for the SNAP trial and randomized in SIMPLY-SNAP.
4 secondary outcomes
Participant understanding of the clinical trial
Time frame: Within 3 days after the consent process
Participant satisfaction with the consent process
Time frame: Within 3 days after the consent process
Research staff satisfaction with the consent process
Time frame: 1 day
Time taken for entire consent process
Time frame: 1 day
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Oct 2026.
- Derived from this study: PubMed 38238170Ong SWX, Lee TC, Fowler RA, Mahar R, Pinto RL, Rishu A, Petrella L, Whiteway L, Cheng M, McDonald E, Johnstone J, Mertz D, Kandel C, Somayaji R, Davis JS, Tong SYC, Daneman N. Evaluating the impact of a SIMPlified LaYered consent process on recruitment of potential participants to the Staphylococcus aureus Network Adaptive Platform trial: study protocol for a multicentre pragmatic nested randomised clinical trial (SIMPLY-SNAP trial). BMJ Open. 2024 Jan 18;14(1):e083239. doi: 10.1136/bmjopen-2023-083239.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sean WX Ong, MBBS principal investigator
University of Toronto
6 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Simplified layered consent form and Full-length consent form in people with Staphylococcus Aureus Bacteremia, run by Sunnybrook Health Sciences Centre at 6 sites in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 19 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 6 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Proportion of patients recruited to SNAP (time frame: 1 day). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06168474, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Oct 2026; AzTrials last refreshed its copy on 27 Oct 2026.