Paper diaries get filled in the night before the visit, lost or misread. A digital patient diary records when each entry was made, can lock late entries and puts the data in front of your team the same day.
Free sandbox · No credit card · 21 CFR Part 11 compliant
Paper diary · week 3
Filled in when?
Digital diary · week 3
Every entry server-timestamped
100%
of entries server-timestamped
0
transcription from paper
Same day
data visible to your team
1 click
blank diary PDF for ethics
Why switch
Integrity
Each diary entry opens in its own window. With a hard window, it locks once that window closes, so backfilling becomes impossible rather than just discouraged.
Window -3 / +3 days around the anchored target date
Soft window
Stays available with a protocol deviation flag
Hard window
Locks outside the window
Warning only
Stays available with a warning
Auto-close
Marked missed when the window closes
Richer data
A digital diary can collect things a booklet cannot: a photo of a rash, an episode reported the moment it happens, or an entry completed by a caregiver.
Evening diary
Question 3 of 8
How would you rate your fatigue today?
0 = no fatigue, 10 = worst imaginable
Upload your paper diary to the AI form builder in a free sandbox and review the digital version.
Conversion
Upload the current paper diary as a PDF or DOCX and the AI form builder drafts the digital version. Review it, adjust it and attach it to your schedule.
Question form
CRF or ePRO
Lab table
Analytes, units, ranges
1. Systolic blood pressure
Required · Number · mmHg · 0 dp
2. Diastolic blood pressure
Required · Number · mmHg · 0 dp
3. Pulse rate
Required · Number · beats/min
4. Body temperature
Required · Number · °C · 1 dp
5. Position during measurement
Required · Sitting, Supine, Standing
Ethics submission
Export a blank ePRO PDF laid out the way the diary appears on a phone, with every item, answer option and skip rule, and the schedule each diary follows.
Blank ePRO · patient questionnaires
Evening diary
Daily 18:00 to 24:00, Visit 1 to Visit 15
2. Did you take your study medication today?
○ Yes○ NoQuestion 3 shown only if No.
An electronic version of the paper diary participants keep between study visits. Entries are made on a phone or tablet, timestamped and sent to the study team immediately.
Paper diaries cannot show when they were filled in, so backfilling goes unnoticed. They also need transcription, can be lost and are hard to read. A digital diary solves each of these.
Yes. With a hard window, each entry locks when its window closes, so participants cannot complete it later.
Upload it to the AI form builder as a PDF or DOCX. It drafts the digital questions for you to review, adjust and apply.
Capture exports a blank ePRO PDF showing each diary as it appears on a phone, with answer options, skip logic and schedule.
Yes. A diary can be set to be completed by the participant or a caregiver.
No. Participants open a secure link in their phone or tablet browser.
Yes. Build a digital diary in the free sandbox. No credit card is needed.
Keep exploring
Patient diary software
Diary rules, reminders and compliance.
ePRO software for clinical trials
The full ePRO feature set.
Fatigue log template
A ready-made fatigue diary.
GI symptoms template
Daily GI symptom tracking.
CRF builder
AI drafting from your existing forms.
ePRO without app development
No app to build or install.
Free sandbox with nearly every feature. No credit card, no sales call.