Project COMFORT

Statistics

Study-wide overview of enrolled participants and blood sample collections.

Participants

Enrollment, parts, adverse events and completion

Total participants
50
90% Completed
Part A
14
Part B
17
Part A + B
19

Blood samples collected

Sample volume and collection type split

Samples collected
147
Venous
75
51%
Capillary
72
49%

Protocol Endpoints

Endpoint values captured across participants, cohorts, and clinical sites.

Part A — Secondary & exploratory endpoints

Scientific evaluation study. Tap the ? icon for the full definition of each endpoint.

  • Secondary

    To evaluate the ability to collect samples at the study site with a PCmS approach that meets laboratory quality criteria.

    % of staff-collected samples from the PCmS approach fulfilling expected laboratory quality criteria (e.g. volume, time frame for shipping/receiving, haemolysis/clotting, and suitability for analysis).

    10%
    4 of 40 staff-collected samples meet quality criteria
  • Secondary

    To confirm that samples are collected correctly at the study sites across demographic groups (examples include differences between age groups, sex, and different disease populations).

    Concentrations of the chosen analytes in venous blood and in capillary blood collected with the PCmS approach, across demographic groups.

    69
    samples across 6 cohorts · 2 sexes
  • Secondary

    To gather user feedback on sampling methods in participants across demographic groups (examples include differences between age groups, sex, and different disease populations).

    PCmS approach usability questionnaire responses.

    60%
    24 of 40 questionnaires completed
  • Exploratory

    To confirm the PCmS approach can be applied without unexpected issues.

    Incidence (number of) and severity of adverse events related to the PCmS approach and venipuncture collection among all participants.

    7
    adverse events (2 severe) across 33 Part A participants

Part B — Secondary & exploratory endpoints

Real-world feasibility study. Tap the ? icon for the full definition of each endpoint.

  • Secondary

    To assess participant acceptability, usability of the PCmS approach, and feasibility of self-collection.

    PCmS approach usability questionnaire responses.

    52%
    26 of 50 questionnaires completed
  • Secondary

    To evaluate the adequacy of methods of training and instructions for the PCmS approach.

    Percentage of participants requiring assistance or reporting difficulty with handling the PCmS approach on their own.

    59%
    46 of 78 required assistance or reported difficulty
  • Exploratory

    To assess feasibility of using a laboratory across EU countries in the analysis of samples collected with PCmS approach.

    % of self-collected samples fulfilling expected laboratories quality criteria (e.g. volume, time frame and suitability for analysis) across EU countries.

    5%
    1 of 22 self-collected samples meet quality criteria across 6 countries
  • Exploratory

    Confirm the PCmS approach can be applied without unexpected issues.

    Incidence (number of) and severity of adverse events related to the PCmS approach among all participants.

    10
    adverse events (4 severe) across 36 Part B participants

Breakdown per study cohort

All metrics above split by cohort

CohortParticipantsPart APart BPart A + BAdverse events% completedSamplesVenousCapillary% accurate
Elderly125341283%28151396%
Cardiovascular disease95319100%21111076%
Colorectal cancer7115786%28141496%
Breast cancer62316100%179894%
Prostate cancer6123683%1761182%
Pediatrics100551090%36201694%
Overall501417195090%147757291%

Usability Questionnaire

Aggregated participant feedback on usability, clarity, and overall experience.

Questionnaire answers summary

Aggregated responses across all 50 participant surveys (Complete: 39 · Incomplete: 8 · Not started: 3). Multi-select answers are counted per option.

A. Previous Experience with Microsampling

Q #QuestionAnswer breakdownAnsweredNot answered
A1Had you heard about blood microsampling before this study?
  • No23 · 51%
  • Yes22 · 49%
45(90%)5
A2Name of the microsampling device previously knownFree-text — 11 responses11(22%)39
A3Number of previous uses
  • 07 · 33%
  • 3-55 · 24%
  • More than 103 · 14%
  • 6-103 · 14%
  • 1-23 · 14%
21(42%)29
A4Ease of previous use
  • Very difficult3 · 23%
  • Easy3 · 23%
  • Very easy3 · 23%
  • Neutral3 · 23%
  • Difficult1 · 8%
13(26%)37
A5Previous difficulties experiencedFree-text — 22 responses22(44%)28

B. Study Information and Visit Experience

Q #QuestionAnswer breakdownAnsweredNot answered
B1Study information was easy to understand
  • Strongly agree11 · 26%
  • Neutral9 · 21%
  • Strongly disagree9 · 21%
  • Agree7 · 17%
  • Disagree6 · 14%
42(84%)8
B2I felt comfortable asking questions about the study
  • Strongly agree12 · 26%
  • Disagree12 · 26%
  • Agree9 · 20%
  • Strongly disagree8 · 17%
  • Neutral5 · 11%
46(92%)4
B3Satisfaction with study visit organisation
  • Satisfied12 · 26%
  • Dissatisfied11 · 24%
  • Very satisfied11 · 24%
  • Very dissatisfied8 · 17%
  • Neutral4 · 9%
46(92%)4
B4Convenience of visit scheduling
  • Neutral10 · 24%
  • Satisfied10 · 24%
  • Very satisfied8 · 20%
  • Dissatisfied7 · 17%
  • Very dissatisfied6 · 15%
41(82%)9
B5Study staff treated me respectfully
  • Strongly disagree14 · 32%
  • Agree8 · 18%
  • Disagree8 · 18%
  • Neutral7 · 16%
  • Strongly agree7 · 16%
44(88%)6
B6I felt comfortable asking questions during the visit
  • Strongly agree15 · 36%
  • Neutral9 · 21%
  • Disagree8 · 19%
  • Agree5 · 12%
  • Strongly disagree5 · 12%
42(84%)8
B7Satisfaction with answers received
  • Satisfied11 · 26%
  • Dissatisfied9 · 21%
  • Very satisfied9 · 21%
  • Very dissatisfied8 · 19%
  • Neutral5 · 12%
42(84%)8
B8Visit duration was acceptable
  • Agree11 · 26%
  • Strongly agree11 · 26%
  • Strongly disagree7 · 16%
  • Disagree7 · 16%
  • Neutral7 · 16%
43(86%)7
B9Impact on daily life was acceptable
  • Agree10 · 23%
  • Neutral10 · 23%
  • Disagree9 · 21%
  • Strongly agree8 · 19%
  • Strongly disagree6 · 14%
43(86%)7
B10I felt comfortable providing feedback on sampling preferences
  • Disagree11 · 27%
  • Strongly disagree10 · 24%
  • Agree9 · 22%
  • Strongly agree7 · 17%
  • Neutral4 · 10%
41(82%)9

C. Conventional Sampling vs Microsampling Experience

Q #QuestionAnswer breakdownAnsweredNot answered
C1Pain rating for conventional venous blood sampling (0-10)
  • 57 · 16%
  • 37 · 16%
  • 96 · 14%
  • 76 · 14%
  • 0 (no pain)5 · 12%
  • 83 · 7%
  • 10 (worst pain)3 · 7%
  • 13 · 7%
  • 22 · 5%
  • 61 · 2%
43(86%)7
C2Pain rating for microsampling device collection (0-10)
  • 10 (worst pain)9 · 20%
  • 56 · 14%
  • 76 · 14%
  • 44 · 9%
  • 84 · 9%
  • 63 · 7%
  • 23 · 7%
  • 33 · 7%
  • 92 · 5%
  • 0 (no pain)2 · 5%
  • 12 · 5%
44(88%)6
C3Preferred blood collection method if given a choice
  • Microsampling17 · 38%
  • Conventional blood sampling17 · 38%
  • No preference11 · 24%
45(90%)5
C4Why did you choose this preferred method?Free-text — 43 responses43(86%)7

D. Microsampling Device Experience

Q #QuestionAnswer breakdownAnsweredNot answered
D1The device seemed easy to use
  • Agree10 · 22%
  • Strongly disagree10 · 22%
  • Strongly agree9 · 20%
  • Disagree9 · 20%
  • Neutral7 · 16%
45(90%)5
D2The device caused little or no pain
  • Disagree14 · 30%
  • Strongly disagree12 · 26%
  • Agree7 · 15%
  • Strongly agree7 · 15%
  • Neutral7 · 15%
47(94%)3
D3I could use the device at home
  • Disagree13 · 30%
  • Agree9 · 20%
  • Strongly agree8 · 18%
  • Strongly disagree8 · 18%
  • Neutral6 · 14%
44(88%)6
D4Confidence that microsampling could replace conventional blood sampling
  • Strongly agree12 · 29%
  • Neutral10 · 24%
  • Agree8 · 20%
  • Strongly disagree6 · 15%
  • Disagree5 · 12%
41(82%)9
D5Problems experienced with the deviceFree-text — 42 responses42(84%)8

E. Home / Self-Collection Experience

Q #QuestionAnswer breakdownAnsweredNot answered
E1Did you take part in Part A (home self-collection)?
  • Yes23 · 56%
  • No18 · 44%
41(82%)9
E2Satisfaction with microsampling equipment and materials
  • Neutral10 · 26%
  • Satisfied9 · 23%
  • Very satisfied8 · 21%
  • Very dissatisfied8 · 21%
  • Dissatisfied4 · 10%
39(78%)11
E3Helpfulness of training materials
  • Neutral12 · 29%
  • Very unhelpful11 · 26%
  • Unhelpful7 · 17%
  • Very helpful6 · 14%
  • Helpful6 · 14%
42(84%)8
E4Confidence using microsampling for self-collection
  • Neutral13 · 30%
  • Strongly disagree9 · 20%
  • Strongly agree9 · 20%
  • Agree8 · 18%
  • Disagree5 · 11%
44(88%)6
E5Self-collection instructions were clear
  • Strongly agree12 · 27%
  • Disagree10 · 23%
  • Agree8 · 18%
  • Neutral7 · 16%
  • Strongly disagree7 · 16%
44(88%)6
E6I was able to complete sample collection without help
  • Strongly disagree14 · 32%
  • Agree10 · 23%
  • Neutral8 · 18%
  • Strongly agree6 · 14%
  • Disagree6 · 14%
44(88%)6
E7I had access to support during self-collection
  • Strongly disagree11 · 27%
  • Agree9 · 22%
  • Disagree8 · 20%
  • Neutral7 · 17%
  • Strongly agree6 · 15%
41(82%)9
E8Time required for collecting and returning samples was acceptable
  • Disagree11 · 28%
  • Strongly agree10 · 25%
  • Strongly disagree8 · 20%
  • Neutral7 · 18%
  • Agree4 · 10%
40(80%)10
E9Microsampling fitted into my usual routine
  • Strongly agree11 · 26%
  • Strongly disagree10 · 24%
  • Disagree7 · 17%
  • Neutral7 · 17%
  • Agree7 · 17%
42(84%)8
E10I felt safe and confident during self-collection
  • Disagree12 · 28%
  • Agree8 · 19%
  • Strongly disagree8 · 19%
  • Strongly agree8 · 19%
  • Neutral7 · 16%
43(86%)7
E11Satisfaction with shipping samples back to the lab
  • Neutral10 · 24%
  • Very satisfied9 · 22%
  • Satisfied8 · 20%
  • Dissatisfied7 · 17%
  • Very dissatisfied7 · 17%
41(82%)9

F. Training and Support

Q #QuestionAnswer breakdownAnsweredNot answered
F1Which support types were helpful?Free-text — 45 responses45(90%)5
F2Which factors would build your confidence in using microsampling?Free-text — 43 responses43(86%)7

G. Future Preferences

Q #QuestionAnswer breakdownAnsweredNot answered
G1Preferred future blood collection location
  • No preference13 · 30%
  • At home12 · 27%
  • At the clinic12 · 27%
  • At a pharmacy7 · 16%
44(88%)6
G2Willingness to use a microsampling device at home for regular health-related blood sampling
  • Yes19 · 45%
  • Maybe14 · 33%
  • No9 · 21%
42(84%)8
G3If you answered Maybe or No, please explainFree-text — 15 responses15(30%)35