Blood sample collection
15 Sep 2025
CapillaryClinic
- Collector
- Nurse
- Device type
- Tasso mini
- Analytes
- 5
Overview
Key participant information
Participant code
COMFORT-043
Enrollment date
08 Sep 2025
Clinical site
Karolinska Hospital
Enrollment place
Hospital
Enrolled part
B
Status
Completed
Study Population Cohort
Cardiovascular disease
QUESTIONNAIRE
Complete
Study Visits
Details of participatnt visits in Part A and/or Part B
| Date | Part | Type of visit | Place | Status | Comments |
|---|---|---|---|---|---|
| 08 Sep 2025 | B | Screening | Hospital | Completed | Screening visit completed. Eligibility confirmed. |
| 15 Sep 2025 | B | 1st Visit | Not applicable (N/A) | Completed | Follow-up visit completed. Capillary microsampling at home. |
| 06 Oct 2025 | B | 2nd Visit | Hospital | Completed | Ad-hoc follow-up visit. |
| 27 Oct 2025 | B | 3rd Visit | Health Primary Care | Completed | Ad-hoc follow-up visit. |
Collections
Blood microsampling and venipuncture collections with associated analyte results
B
Blood sample collection
06 Oct 2025
VenousClinic
- Collector
- Nurse
- Device type
- —
- Analytes
- 6
Blood sample collection
27 Oct 2025
CapillaryHome
- Collector
- Nurse
- Device type
- Tasso mini
- Analytes
- 5
Adverse Events
Reported adverse events during the study
No adverse events reported
This participant has no adverse events recorded during the study.
Medical profile
Past medical history and conditions
Coming soon
Past medical history, conditions, medications and allergies will appear here once the ETL feed is connected.
Usability Questionnaire
Participant responses — surveyed on 2025-10-07
| SECTION | Q # | Question | Answer | Comments / Free-text |
|---|---|---|---|---|
| A. Previous Experience with Microsampling | A1 | Had you heard about blood microsampling before this study? | Yes | — |
| A. Previous Experience with Microsampling | A2 | Name of the microsampling device previously known | Tasso+ | — |
| A. Previous Experience with Microsampling | A3 | Number of previous uses | More than 10 | — |
| A. Previous Experience with Microsampling | A4 | Ease of previous use | Very easy | — |
| A. Previous Experience with Microsampling | A5 | Previous difficulties experienced | Pain, Other, Difficulty applying | — |
| B. Study Information and Visit Experience | B1 | Study information was easy to understand | Agree | — |
| B. Study Information and Visit Experience | B2 | I felt comfortable asking questions about the study | Strongly disagree | — |
| B. Study Information and Visit Experience | B3 | Satisfaction with study visit organisation | Very satisfied | — |
| B. Study Information and Visit Experience | B4 | Convenience of visit scheduling | Very satisfied | — |
| B. Study Information and Visit Experience | B5 | Study staff treated me respectfully | Neutral | — |
| B. Study Information and Visit Experience | B6 | I felt comfortable asking questions during the visit | Neutral | — |
| B. Study Information and Visit Experience | B7 | Satisfaction with answers received | Neutral | — |
| B. Study Information and Visit Experience | B8 | Visit duration was acceptable | Agree | — |
| B. Study Information and Visit Experience | B9 | Impact on daily life was acceptable | Agree | — |
| B. Study Information and Visit Experience | B10 | I felt comfortable providing feedback on sampling preferences | Agree | — |
| C. Conventional Sampling vs Microsampling Experience | C1 | Pain rating for conventional venous blood sampling (0-10) | 5 | — |
| C. Conventional Sampling vs Microsampling Experience | C2 | Pain rating for microsampling device collection (0-10) | 10 (worst pain) | — |
| C. Conventional Sampling vs Microsampling Experience | C3 | Preferred blood collection method if given a choice | No preference | Used to venous draws, more comfortable. |
| C. Conventional Sampling vs Microsampling Experience | C4 | Why did you choose this preferred method? | Microsampling caused noticeably less discomfort and was faster to perform. | — |
| D. Microsampling Device Experience | D1 | The device seemed easy to use | Strongly agree | — |
| D. Microsampling Device Experience | D2 | The device caused little or no pain | Neutral | — |
| D. Microsampling Device Experience | D3 | I could use the device at home | Disagree | — |
| D. Microsampling Device Experience | D4 | Confidence that microsampling could replace conventional blood sampling | Agree | — |
| D. Microsampling Device Experience | D5 | Problems experienced with the device | Leakage, Device error, None | No issues noted. |
| E. Home / Self-Collection Experience | E1 | Did you take part in Part A (home self-collection)? | Yes | — |
| E. Home / Self-Collection Experience | E2 | Satisfaction with microsampling equipment and materials | Satisfied | — |
| E. Home / Self-Collection Experience | E3 | Helpfulness of training materials | Unhelpful | — |
| E. Home / Self-Collection Experience | E4 | Confidence using microsampling for self-collection | Strongly agree | — |
| E. Home / Self-Collection Experience | E5 | Self-collection instructions were clear | Disagree | — |
| E. Home / Self-Collection Experience | E6 | I was able to complete sample collection without help | Strongly disagree | — |
| E. Home / Self-Collection Experience | E7 | I had access to support during self-collection | Disagree | — |
| E. Home / Self-Collection Experience | E8 | Time required for collecting and returning samples was acceptable | Strongly agree | — |
| E. Home / Self-Collection Experience | E9 | Microsampling fitted into my usual routine | Strongly agree | — |
| E. Home / Self-Collection Experience | E10 | I felt safe and confident during self-collection | Disagree | — |
| E. Home / Self-Collection Experience | E11 | Satisfaction with shipping samples back to the lab | Dissatisfied | — |
| F. Training and Support | F1 | Which support types were helpful? | Printed instructions, Other | Video tutorial answered most of my doubts. |
| F. Training and Support | F2 | Which factors would build your confidence in using microsampling? | Clear printed/visual instructions | — |
| G. Future Preferences | G1 | Preferred future blood collection location | At a pharmacy | — |
| G. Future Preferences | G2 | Willingness to use a microsampling device at home for regular health-related blood sampling | Yes | Would prefer if I had ongoing support. |
| G. Future Preferences | G3 | If you answered Maybe or No, please explain | Not answered | — |
Legal
Consent and withdrawal information
Date of consent
05 Sep 2025
Date of withdrawal
—
Withdraw reason
—