Analytical and Clinical Performance Testing Plan

Completed

• Conditions: Hematology; Hematologic Test
• Interventions: Device: Hematology Analyzer - Predicate; Device: Hematology Analyzer - OLO

• Registration Number: NCT03595501
• Lead Sponsor: Sight Diagnostics

Brief Summary

Clinical and analytical tests will be performed based on risk assessment and system specifications to verify that the performance of the investigational device is in accordance with its specifications.

Detailed Description

Comparison and precision studies will be conducted in up to 5 clinical sites in Israel and the US, and include:

* Precision

* Sample Matrix Comparison

* Method comparison study and flagging analysis

* Reference interval range

Study Timeline

• Study First Submitted: 2018-05-28
• Study Start: 2018-06-20
• Study First Submitted QC: 2018-07-11
• Study First Posted: 2018-07-23
• Primary Completion: 2019-03-06
• Study Completion: 2019-08-25
• Status Verified: 2021-03
• Last Update Submitted: 2021-03-03
• Last Update Posted: 2021-03-04

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 679

Inclusion Criteria

For Residual Samples:

• Specimen obtained by venipuncture or finger prick and collected into tubes normally used by the site
• Patient is at least 3 months of age
• Samples within 8 hours from phlebotomy

For Prospectively collected samples:

• Subject is at least 22 years of age
• Non-diseased individuals or, for specific studies, individuals with blood count ranges to cover indicated medical decision points and ranges
• Samples within 8 hours from phlebotomy

Exclusion Criteria

Exclusion criteria post blood draw and pre sample scan - For whole blood samples:

• Visibly hemolyzed or clotted specimens
• Specimens with insufficient blood volume to complete the procedure
• Samples older than eight hours

Exclusion criteria post sample scan:

• Instrument failure or sample rejected by the instrument due to system error or sample mishandling
• The daily quality control sample measurements indicate that the assay run is outside the specifications for the instrument
• Operator related error documented in the study records
• Failure to adhere to study specifics or protocols

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Hematology Analyzer - Predicate	Hematology Analyzer - Predicate	The predicate device is a quantitative multi-parameter automated hematology analyzer intended for in vitro diagnostic use in screening patient populations found in clinical and reference laboratories.
Hematology Analyzer - OLO	Hematology Analyzer - OLO	The investigational device is a quantitative multi-parameter automated hematology analyzer intended for in vitro diagnostic use in screening capillary or venous whole blood samples.

Primary Outcome Measures

Name	Time	Method
Repeatability of CBC parameters provided by the OLO device	3 months	Performance of the OLO device will be measured through repeatability of 20 replicates for 11 residual samples on each site. Samples collected for this study will include 4 within lab reference range, 3 around lower medical decision levels for HGB, PLT and WBC, and 4 around the upper range for RBC, HGB, WBC and PLT to cover all pathological levels and medical decision points. Standard deviation (SD) and coefficient of variation (CV) will be computed for each measurand per sample by site.
Sample Matrix Comparison	3 months	Paird capillary and venous whole blood samples will be collected. The samples will be analyzed in duplicate on the Sight OLO device. Analysis will include Passing-Bablok Regression analysis per parameter (Bland Altman plots, slope, intercept, with 95% confidence intervals, correlation coefficient, and % bias), between: The average of venous whole blood samples scans and average of capillary whole blood sample scans from the same individual on the Sight OLO device
Reproducibility of CBC parameters provided by the OLO device	3 months	Reproducibility studies will be conducted using 3 levels of commercial control materials (low, normal and high) to measure all CBC reported parameters. Control material will be run on two instruments at each site. Standard deviation (SD) and coefficient of variation (CV) will be calculated for each measurand for: (1) Between lots/sites; (2) Between instruments; (3) Between days; (4)Between operators/runs; (5) within-run and (6) total variability
Method Comparison	3 months	Evaluate the performance of the OLO device in comparison to values achieved with the predicate. Analysis will include Regression parameters (slope, intercept with 95% CI) between measurement of Sight OLO and measurement on predicate (Correlation coefficient, Bland Altman plots and overall % bias between predicate and Sight OLO device including % bias at medical decision points).
Reference Interval Range	3 months	Establish adult venous and fingerprick reference intervals for the OLO device. The non-parametric method will be used to calculate the lower and upper limits of the reference range.

Trial Locations

Locations (1)

Columbia University; 🇺🇸 New York, New York, United States