Put a QR code on a poster, a clinic room wall or an information leaflet, and let people reach your study in seconds. Capture creates site-specific or study-specific codes that open in the phone browser, with no app to install.
Free sandbox · No credit card · 21 CFR Part 11 aligned
Now recruiting
Sleep and Recovery Study
A 12-week study of sleep quality after surgery. Takes 5 minutes a day on your phone.
Check if you can take partScan to join
Print it on posters and clinic flyers
How QR enrolment works
Why it works
Every extra step in recruitment loses people. A poster that says "call this number during office hours" converts far fewer people than one they can scan on the spot. A QR code that opens the study's landing page lets interested people read about the study, check whether they might be eligible and leave their details or enrol straight away, depending on what your protocol and ethics approval allow.
Site-specific codes solve a practical problem in multi-site studies: attribution. Each site's posters and leaflets carry its own code, so participants arrive at the right site and recruitment performance by site is visible without manual tracking. See multi-site clinical trial management.
Recruitment materials, including posters with QR codes and landing page text, usually need ethics approval. Include the poster and landing page text in your submission, and make sure the page says what happens to any information people enter.
Evening diary
Question 3 of 8
How would you rate your fatigue today?
0 = no fatigue, 10 = worst imaginable
Use cases
| Setting | Code type | What happens next |
|---|---|---|
| Clinic waiting room poster | Site-specific | Landing page, interest form or self-enrolment |
| Community or pharmacy poster | Study-specific | Central pre-screening before site assignment |
| Patient information leaflet | Site-specific | Participant starts onboarding at home |
| Registry or observational study | Study-specific | Self-enrolment and first questionnaire |
| Event or conference booth | Study-specific | Interest registration for follow-up |
In Capture
Give the participant portal your study's look and publish a landing page with a QR code for recruitment posters and clinic rooms. Studies that allow it can let people enrol themselves from the landing page, and site-specific codes assign each participant to the right site.
Now recruiting
Sleep and Recovery Study
A 12-week study of sleep quality after surgery. Takes 5 minutes a day on your phone.
Check if you can take partScan to join
Print it on posters and clinic flyers
Publish a test landing page in the free sandbox and scan the code with your phone.
After the scan
What happens after the scan depends on the study. Observational studies and registries may enrol participants directly and start the first questionnaire. Interventional trials usually collect interest or pre-screening answers, then invite eligible people to consent and screen at a site, where the guided screening flow assigns sequential numbers and records screen-failure reasons.
Keep pre-screening short and neutral, and consent to pre-screening where required. The pre-screening consent template and screening and enrollment log template cover the steps before and after.
Recruitment materials
A good poster answers three questions at a glance: who is the study for, what does taking part involve, and how do I find out more. Keep the headline plain, list only the key eligibility points, make the QR code large enough to scan from a distance, and add a short web address for people who prefer to type.
Test the code from where people will actually stand, in the lighting of the room, before printing. Place posters where the target population spends time, not only in research corridors, and review which sites and materials bring in participants. See patient recruitment software.
Setup
Site-specific or study-specific.
Plain-language study summary and privacy information.
Posters and landing page approved.
Interest form, pre-screening or self-enrolment.
Where the target population actually is.
Enrolment by site reviewed weekly.
Large enough to scan from where people stand. Test it in the room before printing.
Yes, a short address helps people who prefer to type.
Yes. Site-specific codes assign participants to the right site; study-specific codes suit central recruitment.
No. The code opens a landing page in the phone browser.
Where the protocol allows it, participants can enrol from the landing page and start their first questionnaire.
Yes. The participant portal and landing page can take your study's look.
Recruitment materials usually do. Include the poster and landing page content in your submission.
Yes, in the free sandbox.
Keep exploring
Patient recruitment software
Recruitment workflows.
Remote patient enrollment software
Enrolment from home.
Clinical trial pre-screening tools
Before consent.
Screening and enrollment log template
Tracking screening.
EDC for registry studies
Self-enrolment studies.
Multi-site clinical trial management
Site attribution.
Landing pages and QR codes in the free sandbox.