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H2020

RapidEx Report Summary

Project ID: 666666
Funded under: H2020-EU.3.1.3.

Periodic Reporting for period 3 - RapidEx (Validation of a point-of-care H-FABP test for a rapid exclusion of Acute Myocardial Infarction in patients with cardiac complaints.)

Reporting period: 2017-01-01 to 2017-10-31

Summary of the context and overall objectives of the project

Most patients attending emergency healthcare with chest pain are not suffering a heart attack but diagnosis is difficult - chest pain is the most common reason for emergency hospital admission. It is estimated that of 5 million patients reporting each year across the EU, approximately 3 million will be admitted for overnight observation. However, tests will later identify that only a minority of those patients actually have an acute coronary syndrome and around 2 million cases are discharged 1-2 days later without a diagnosis of ACS. If better investigations had been available at the time initial presentation, many of these hospital admissions could have been avoided, which would lead to earlier reassurance for patients and more efficient use of health resources.
FABPulous BV has developed a 5 minute blood test that can be performed in the moment of need by a GP, Emergency Department Clinician, nurse or paramedic that does not require an instrument, is simple to perform and is easy to interpret. Heart Fatty Acid Binding Protein (H-FABP) provides essential energy for heart muscle and in the case of a heart attack rises more quickly and in greater concentration than traditional “biomarkers”. The RapidEx 666666 Horizon 2020 SME Instrument Phase 2 grant funded 2 clinical trials to confirm the performance of the novel test in GP surgeries (Work Package 1), Emergency Departments (Work Package 2) and to transfer the manufacturing operation from North America to the EU (Work Package 3).

Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far

Work Package 1: Primary Care Clinical Trial (RAPIDA).
The ‘RAPIDA’ trial (RAPid test for Investigating complaints possibly due to Acute Coronary Syndrome (ACS)), is a study based at the universities of Maastricht, Netherlands and Leuven, Belgium. The objective was to investigate the use of an H-FABP test in combination with standard GP diagnostic procedures, anticipating a reduction in the 7% of ACS cases that are missed in error and reducing the referrals to cardiology for whom ACS is subsequently eliminated as a diagnosis. With 303 patients had been included data collection ended in December 2016. The data recommends a review of the diagnostic threshold for heart attacks to be reduced to include Unstable Angina in the positive range. The Model Analysis of Economic Costs identified that the cost of false referral in the Netherlands was €162MM on an annual basis. Providing 29% of unnecessary admissions are prevented, the use of H-FABP in a GP setting is cost neutral and missed diagnoses reduced. These data were published in the peer reviewed journal Primary Health Care Research & Development in December 2017.
Work Package 2: TSB Emergency Medicine Trial (RapidEx)
The RapidEx (Rapid Exclusion of ACS) trial has the objective to assess whether a novel point of care device for heart-type fatty acid binding protein (H-FABP) can be used to accurately rule out Acute Myocardial Infarction (AMI, or heart attack) when used alongside other clinical information as part of the Manchester Acute Coronary Syndromes (MACS) decision rule within 3 hours of arrival in an Emergency Department (ED). First data were available in May 2016, when the interoperator variability study was published in the peer review journal Clinical Biochemistry (Al Mashali et al, Clinical Biochemistry 49 (2016) 1199–1201), with a Cohen’s kappa coefficient of .81, “Near Perfect Agreement”. Principal Investigator Professor Rick Body of Manchester University Hospitals NHS Foundation Trust engaged a further 14 Emergency Departments across NHS England to boost the speed of the trial and to provide evidence reliability of the Clinical Decision Rule. In July 2017, a total of 1600 patients had been included. A short paper on the trial was presented by Professor Body at the Royal College of Emergency Medicine Annual Scientific Conference, Liverpool, UK in October 2017. In summary the MACS protocol using H-FABP True Rapid Test at presentation gave a Negative Predictive Value of 99.3% (95%CI 98.0 – 99.8%), matching an innovative exclusion protocol (T-MACS) using high sensitivity cardiac troponin. The Health Economic Study Report (Thompson & Davison, Manchester University) concludes the modified MACS protocol using H-FABP True Rapid Test is economically advantageous.
Whilst the technology worked as expected, the study recommends review of the diagnostic threshold to be effective for exclusion of ACS in early onset of chest pain, this research has already started and should be results in a revised CE marked test during 2018. Additionally it is found that a positive H-FABP result using the point of care assay manufactured by FABPulous BV increases the probability of ACS, regardless of a patient’s baseline ECG and hs-cTn concentrations, this might facilitate early specialist care for high risk patients, which could potentially lead to improved patient outcomes. Finally, the study derived a new protocol using H-FABP True Rapid Test provides a unique opportunity to improve patient risk stratification in pre-hospital settings with a 5-minute, equipment-free solution. The proposed FABPuMACS clinical decision rule will be investigated further.
Work Package 3: Transfer of manufacturing from North America to Helvoet, Netherlands
The prototype CE-marked H-FABP True Rapid Test was hand-manufactured through the activities of 4 companies in 4 sites across the USA and Canada. To improve the manufacturing process, shortening the management channels, increasing capacity a

Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)

Through this project:
• The cost of referral of a chest pain patient through hospital admission has been confirmed - €162 million is spent in the Netherlands, alone on patients discharged the following day without a diagnosis of ACS, and a reduction of 29% would be economically advantageous. These data were published during 2019 in a peer-reviewed scientific journal.
• The current and future costs of diagnosing ACS in chest pain patients has been validated in 2 healthcare markets, NHS England and The Netherlands.
• Further work is recommended to improve the early exclusion of ACS as a diagnosis for chest pain patients and a revised test should be available for commercial launch during 2018.

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