# FVIII Point-of-Care Monitoring Device and App

> **NIH NIH R44** · DNA MEDICINE INSTITUTE · 2020 · $749,250

## Abstract

FVIII Point-of-Care Monitoring Device and App
Summary/Abstract
 Hemophilia A results from a deficiency of FVIII-activity and can result in severe bleeding. Head bleeds
can be debilitating and joint-bleeds require major medical intervention. In this Direct-to-Phase II effort, we
will leverage our CE-marked FVIII fluorogenic substrate assay to develop a cost-effective point-of-care
(POC) FVIII test for whole venous or capillary blood with a 15-minute turnaround time. Hemophilia A is
an X-linked recessive genetic disorder with an incidence of 1 in 5000 live male births. For patients with
hemophilia A, lifelong treatment is required to provide adequate and therapeutic FVIII levels. The ability to
monitor their FVIII levels is essential to maintaining optimal therapeutic dosing. Individual pharmacokinetics
can affect the clearance of recombinant FVIII therapies. Over time, patients can develop inhibitors, which may
dramatically change a drug’s effectiveness over time. Given, the complexity of FVIII lab measurements, there
are currently no FVIII measurement approaches available at the point-of-care. All approaches to FVIII
measurements are reliant on skilled clinical laboratory personnel and specialized laboratory equipment for
assay automation, resulting in challenges to standardization, implementation, and access.
 In preliminary work, we have developed three innovations: (1) a high-sensitivity CE-marked
FVIII fluorogenic assay that spans < 1 -200% FVIII levels, (2) a sample-to-answer capable cartridge that
performs all sample processing for our assay, and (3) a concept FVIII prototype device and app
wireframe. In this proposed work, we plan to leverage our work to advance FVIII monitoring work via three
aims: (1) Demonstrate a CLIA-waivable sample-to-answer consumable, (2) Assess our FVIII monitoring
device, app, and consumable performance over 1-200 FVIII% levels, with interfering substances, and on
capillary blood, (3) Assess FVIII monitoring device at Boston Children’s Hospital (N=45) on hemophilia
patients, study human factors and precision. During the effort, we will work closely with hemophilia experts,
including the World Federation of Hemophilia, to ensure we have an approach for all patients worldwide.
 The success of developing a FVIII POC diagnostic will allow patients and providers a precision
medicine approach to managing their disease. Home use will allow for more frequent measurement of FVIII
levels to ensure therapeutics levels prior to engaging in physical activity and to assess correct dosage
administration, including potential missed doses. It will allow newer therapies, including extended half-life
PEGylated FVIII and gene therapies, to be monitored. The approach can be utilized to create FVIII activity
trends which can be translated into pK data to assess changes over time, which may alert care providers to
test for inhibitors. The results of our efforts will be a human-centered FVIII Bluetooth-connected monitoring
device, consu...

## Key facts

- **NIH application ID:** 9909269
- **Project number:** 1R44HL151147-01
- **Recipient organization:** DNA MEDICINE INSTITUTE
- **Principal Investigator:** Eugene Yan-ho Chan
- **Activity code:** R44 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $749,250
- **Award type:** 1
- **Project period:** 2020-09-10 → 2022-05-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/9909269

## Citation

> US National Institutes of Health, RePORTER application 9909269, FVIII Point-of-Care Monitoring Device and App (1R44HL151147-01). Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/grant/nih/9909269. Licensed CC0.

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