Blood sample collection
05 Oct 2025
VenousClinic
- Collector
- Phlebotomist
- Device type
- —
- Analytes
- 7
Overview
Key participant information
Participant code
COMFORT-039
Enrollment date
28 Sep 2025
Clinical site
Karolinska Hospital
Enrollment place
Hospital
Enrolled part
B
Status
Completed
Study Population Cohort
Breast cancer
QUESTIONNAIRE
Complete
Study Visits
Details of participatnt visits in Part A and/or Part B
| Date | Part | Type of visit | Place | Status | Comments |
|---|---|---|---|---|---|
| 28 Sep 2025 | B | Screening | Hospital | Completed | Screening visit completed. Eligibility confirmed. |
| 05 Oct 2025 | B | 1st Visit | Not applicable (N/A) | Completed | Follow-up visit completed. Capillary microsampling at home. |
| 26 Oct 2025 | B | 2nd Visit | Not applicable (N/A) | Completed | Ad-hoc follow-up visit. |
| 16 Nov 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
26 Oct 2025
CapillaryHome
- Collector
- Nurse
- Device type
- TAP Micro Select
- Analytes
- 3
Blood sample collection
16 Nov 2025
VenousClinic
- Collector
- Nurse
- Device type
- —
- Analytes
- 4
| Collection | Collection type | Collection place | Collector | Device type | Part | Analytes | Action |
|---|---|---|---|---|---|---|---|
Blood sample collection Details 05 Oct 2025 | Venous | Clinic | Phlebotomist | — | B | 7 | Open |
Blood sample collection Details 26 Oct 2025 | Capillary | Home | Nurse | TAP Micro Select | B | 3 | Open |
Blood sample collection Details 16 Nov 2025 | Venous | Clinic | Nurse | — | B | 4 | Open |
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 2025-10-17
| 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 | Capitainer B | — |
| A. Previous Experience with Microsampling | A3 | Number of previous uses | 6-10 | — |
| A. Previous Experience with Microsampling | A4 | Ease of previous use | Neutral | — |
| A. Previous Experience with Microsampling | A5 | Previous difficulties experienced | Other | Mild pain only. |
| B. Study Information and Visit Experience | B1 | Study information was easy to understand | Neutral | — |
| B. Study Information and Visit Experience | B2 | I felt comfortable asking questions about the study | Disagree | — |
| B. Study Information and Visit Experience | B3 | Satisfaction with study visit organisation | Very dissatisfied | — |
| B. Study Information and Visit Experience | B4 | Convenience of visit scheduling | Neutral | — |
| B. Study Information and Visit Experience | B5 | Study staff treated me respectfully | Disagree | — |
| B. Study Information and Visit Experience | B6 | I felt comfortable asking questions during the visit | Disagree | — |
| B. Study Information and Visit Experience | B7 | Satisfaction with answers received | Dissatisfied | — |
| B. Study Information and Visit Experience | B8 | Visit duration was acceptable | Disagree | — |
| B. Study Information and Visit Experience | B9 | Impact on daily life was acceptable | Disagree | — |
| 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) | 3 | — |
| C. Conventional Sampling vs Microsampling Experience | C2 | Pain rating for microsampling device collection (0-10) | 7 | — |
| C. Conventional Sampling vs Microsampling Experience | C3 | Preferred blood collection method if given a choice | No preference | Either option works for me. |
| C. Conventional Sampling vs Microsampling Experience | C4 | Why did you choose this preferred method? | Both methods felt similar to me; convenience matters more. | — |
| D. Microsampling Device Experience | D1 | The device seemed easy to use | Disagree | — |
| D. Microsampling Device Experience | D2 | The device caused little or no pain | Strongly disagree | — |
| D. Microsampling Device Experience | D3 | I could use the device at home | Strongly agree | — |
| D. Microsampling Device Experience | D4 | Confidence that microsampling could replace conventional blood sampling | Disagree | — |
| D. Microsampling Device Experience | D5 | Problems experienced with the device | Pain, Insufficient blood | Small leakage on the cartridge. |
| 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 | Very dissatisfied | — |
| E. Home / Self-Collection Experience | E3 | Helpfulness of training materials | Unhelpful | — |
| E. Home / Self-Collection Experience | E4 | Confidence using microsampling for self-collection | Disagree | — |
| 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 | Strongly agree | — |
| 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 | Very satisfied | — |
| F. Training and Support | F1 | Which support types were helpful? | In-person explanation, Telephone/online support | Video tutorial answered most of my doubts. |
| F. Training and Support | F2 | Which factors would build your confidence in using microsampling? | Trying the device first with a healthcare professional, Online/telephone support, Tutorial videos | — |
| G. Future Preferences | G1 | Preferred future blood collection location | No preference | — |
| G. Future Preferences | G2 | Willingness to use a microsampling device at home for regular health-related blood sampling | Maybe | Need to see results first. |
| G. Future Preferences | G3 | If you answered Maybe or No, please explain | Not answered | — |
Legal
Consent and withdrawal information
Date of consent
25 Sep 2025
Date of withdrawal
—
Withdraw reason
—