Blood sample collection
08 Jul 2025
VenousClinic
- Collector
- Participant
- Device type
- —
- Analytes
- 3
Overview
Key participant information
Participant code
COMFORT-003
Enrollment date
01 Jul 2025
Clinical site
Palacký Olomouc
Enrollment place
Hospital
Enrolled part
AB
Status
Completed
Study Population Cohort
Colorectal cancer
QUESTIONNAIRE
Incomplete
Study Visits
Details of participatnt visits in Part A and/or Part B
| Date | Part | Type of visit | Place | Status | Comments |
|---|---|---|---|---|---|
| 01 Jul 2025 | A | Screening | Hospital | Completed | Screening visit completed. Eligibility confirmed. |
| 08 Jul 2025 | A | 1st Visit | Hospital | Completed | Baseline visit completed. Sample collection performed at clinical site. |
| 29 Jul 2025 | A | 2nd Visit | Health Primary Care | Completed | Ad-hoc follow-up visit. |
| 19 Aug 2025 | B | 1st Visit | Not applicable (N/A) | Completed | Follow-up visit completed. Capillary microsampling at home. |
| 09 Sep 2025 | B | 2nd Visit | Hospital | Completed | Ad-hoc follow-up visit. |
Collections
Blood microsampling and venipuncture collections with associated analyte results
A
Blood sample collection
29 Jul 2025
VenousClinic
- Collector
- Nurse
- Device type
- —
- Analytes
- 6
Blood sample collection
19 Aug 2025
CapillaryClinic
- Collector
- Nurse
- Device type
- Greiner MiniCollect EDTA
- Analytes
- 7
Blood sample collection
09 Sep 2025
VenousClinic
- Collector
- Nurse
- Device type
- —
- Analytes
- 7
| Collection | Collection type | Collection place | Collector | Device type | Part | Analytes | Action |
|---|---|---|---|---|---|---|---|
Blood sample collection Details 08 Jul 2025 | Venous | Clinic | Participant | — | A | 3 | Open |
Blood sample collection Details 29 Jul 2025 | Venous | Clinic | Nurse | — | A | 6 | Open |
Blood sample collection Details 19 Aug 2025 | Capillary | Clinic | Nurse | Greiner MiniCollect EDTA | B | 7 | Open |
Blood sample collection Details 09 Sep 2025 | Venous | Clinic | Nurse | — | B | 7 | Open |
Adverse Events
Reported adverse events during the study
| Date | Part | Visit | Severity | Device related | Action |
|---|---|---|---|---|---|
| 08 Jul 2025 | B | Visit 3 | Severe | No |
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 2025-07-21
| SECTION | Q # | Question | Answer | Comments / Free-text |
|---|---|---|---|---|
| A. Previous Experience with Microsampling | A1 | Had you heard about blood microsampling before this study? | No | — |
| A. Previous Experience with Microsampling | A2 | Name of the microsampling device previously known | Not answered | — |
| A. Previous Experience with Microsampling | A3 | Number of previous uses | Not answered | — |
| A. Previous Experience with Microsampling | A4 | Ease of previous use | Not answered | — |
| A. Previous Experience with Microsampling | A5 | Previous difficulties experienced | Not answered | — |
| B. Study Information and Visit Experience | B1 | Study information was easy to understand | Disagree | — |
| B. Study Information and Visit Experience | B2 | I felt comfortable asking questions about the study | Agree | — |
| B. Study Information and Visit Experience | B3 | Satisfaction with study visit organisation | Dissatisfied | — |
| B. Study Information and Visit Experience | B4 | Convenience of visit scheduling | Very dissatisfied | — |
| B. Study Information and Visit Experience | B5 | Study staff treated me respectfully | Not answered | — |
| 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 | Not answered | — |
| 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 | Not answered | — |
| B. Study Information and Visit Experience | B10 | I felt comfortable providing feedback on sampling preferences | Disagree | — |
| C. Conventional Sampling vs Microsampling Experience | C1 | Pain rating for conventional venous blood sampling (0-10) | 9 | — |
| 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 | Not answered | — |
| 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 | 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 | Not answered | — |
| D. Microsampling Device Experience | D4 | Confidence that microsampling could replace conventional blood sampling | Strongly disagree | — |
| D. Microsampling Device Experience | D5 | Problems experienced with the device | None, Insufficient blood | Small leakage on the cartridge. |
| E. Home / Self-Collection Experience | E1 | Did you take part in Part A (home self-collection)? | Not answered | — |
| E. Home / Self-Collection Experience | E2 | Satisfaction with microsampling equipment and materials | Not answered | — |
| E. Home / Self-Collection Experience | E3 | Helpfulness of training materials | Very unhelpful | — |
| E. Home / Self-Collection Experience | E4 | Confidence using microsampling for self-collection | Not answered | — |
| E. Home / Self-Collection Experience | E5 | Self-collection instructions were clear | Not answered | — |
| 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 | Neutral | — |
| E. Home / Self-Collection Experience | E8 | Time required for collecting and returning samples was acceptable | Neutral | — |
| E. Home / Self-Collection Experience | E9 | Microsampling fitted into my usual routine | Not answered | — |
| E. Home / Self-Collection Experience | E10 | I felt safe and confident during self-collection | Strongly disagree | — |
| E. Home / Self-Collection Experience | E11 | Satisfaction with shipping samples back to the lab | Not answered | — |
| F. Training and Support | F1 | Which support types were helpful? | Video tutorial, In-person explanation, Other | Printed booklet was particularly useful. |
| F. Training and Support | F2 | Which factors would build your confidence in using microsampling? | Not answered | — |
| 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 | — |
| G. Future Preferences | G3 | If you answered Maybe or No, please explain | Not answered | — |
Legal
Consent and withdrawal information
Date of consent
28 Jun 2025
Date of withdrawal
—
Withdraw reason
—