Tasso-SST OnDemand Comparator Pilot Study

Purpose: The purpose of this pilot study is participant user acceptance testing of the Tasso-SST OnDemand device to collect blood for antibody testing. The study will also compare antibody testing results from blood collected using the Tasso-SST On-Demand device compared to blood collected by phlebotomy.

Design and Procedure: Participants will collect a small blood sample using the Tasso-SST OnDemand device during a serology blood draw visit already scheduled for the MURDOCK C3PI Study (Pro00105703). Participants will be provided a kit that includes written, step-by-step instructions that include pictures. Participants will also have the option to watch a brief video on using the device, available online, prior to collection. The Tasso-SST OnDemand device collects whole capillary blood, at a minimum volume of 80ul.

A standard blood draw will also be done and both blood samples will be spun and processed for serum. Serum will be frozen and shipped to the lab at Duke for antibody testing. Antibody results will be compared between the two methods.

Participants will be sent a brief survey to learn about their experience using the Tasso-SST OnDemand device.

Selection of Subject:

Subject Recruitment: All participants meeting eligibility criteria will be emailed about the study. One or more reminder emails may be sent about the study. The study seeks to enroll up to 100 participants.

The Tasso-SST OnDemand device sticks to the skin with a light adhesive. When the button is pressed, a vacuum forms and a lancet pricks the surface of the skin. The vacuum draws blood out of the capillaries and into a tube attached to the bottom of the device. The Investigator Brochure is attached to this submission.

Risk and Benefit Assessment: The Tasso-SST OnDemand device uses an adhesive - the device should be removed immediately if there are any signs of an allergic reaction. There is risk of bruising or soreness at the site where blood is drawn. There is also a slight possibility of infection, and a rare risk of fainting.

Participants can minimize risk by closely following the instructions provided with the kits.

Trained staff will be present should the participant have any concerns or issues.

The study does not have a direct benefit to participants. The information learned could lead to future use of the Tasso-SST OnDemand device to collect blood safely at home.

Data Analysis and Data Safety Monitoring: The study team will evaluate correlation between results from blood collected by the two methods in this pilot study and qualitatively exam participant survey results. Summary statistics will be generated for survey responses, and qualitative data will be reviewed.

Inclusion criteria

• Must be a study participant enrolled in the MURDOCK C3PI Study (Pro00105703), participating in the testing cohort of the study.
• Participants are therefore 18 years of age or older, and
• willing to read and complete the consent process.

Exclusion criteria

• No exclusion criteria; however, only up to 100 participants will be enrolled. If more than 100 participants sign consent, some interested participants may not take part in the study.