C425 Beckman Coulter Clin Flow Single Color Antibodies

Single colour CE-IVD and ASRs in flow cytometry

A large portfolio of single colour CE-IVD and ASR (analyte-specific reagent) conjugated antibodies is now available from Beckman Coulter Life Sciences.  With the launch of two Kappa and two Lambda polyclonal antibodies in 2018, the company has introduced more than 30 additional CE-IVD reagents and 10 new ASRs in the last couple of years. The entire portfolio of single colour antibodies for flow cytometry is manufactured under Good Manufacturing Practices (GMP). High standard, single colour reagents are at the heart of robust and consistent lab-developed tests (LDTs). Even so, establishing robust, accurate and reproducible assays can be a challenge. Several studies show the inadequacy of non-clinical-grade reagents because of inferior performance and problems around reproducibility. A recent study published in Nature showed that monoclonal antibodies were among the most commonly used tools in life sciences but also the greatest source of false findings.  Poor quality conjugated antibodies, their specifications and performance can significantly distort data interpretation, in particular when analysing abnormal populations. To be able to routinely run Lab Developed Tests (LDTs), a high-end lab needs skilled staff with significant expertise in data interpretation.  However, even with the right staff and robust procedures, poor reagent quality often leads to failed quality controls, challenges in interpreting data – and can even lead to false results. The list of potential pitfalls associated with poor antibodies is long and can have a negative impact on a study’s outcome.  This is because of lack of reproducibility across lots, poor conjugation quality, low binding affinity, and non-specific staining.
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C417 Randox

The early risk assessment of T2DM utilizing the adiponectin assay

The continued rise in prevalence rates of type 2 diabetes mellitus (T2DM) and the inadequacies of the traditional T2DM risk methods highlights the necessity for superior markers for the assessment of at-risk patients. The traditional clinical tests utilized in the risk assessment of T2DM includes fasting plasma glucose (FPG) and oral glucose intolerance test (OGTT). FPG has been proven to have poor specificity and OGTT can only be detected when the underlying disease has progressed over several years. The non-biochemical methods, body mass index (BMI), employed for the classification of overweight and obese patients does not distinguish between excess fat, muscle or bone mass. Consequently, these traditional tests are inadequate for the early risk assessment and prevention of T2DM. Adiponectin is a protein hormone secreted by adipocytes with anti-inflammatory and insulin-sensitizing properties, reducing the risk of metabolic syndrome, insulin resistance, CVD and T2DM. Adiponectin levels have been found to inversely correlate with abdominal visceral fat. One study found that using the diagnostic criteria for ADA glucose and HbA1c as a reference, adiponectin displayed a sensitivity of 88% and a specificity of 51% at a cut-off point of 7.5μg/ml (figure 1). This study concluded that adiponectin levels associate with improved glycemic control, revealing its potential as a biomarker in T2DM screening and in the assessment of prediabetic state. Adiponectin levels have also been proved to be useful in the identification of gestational diabetes mellitus (GDM) risk in early pregnancy. A nested case-control study found that women with decreased adiponectin levels measured, on average, 6 years pre-pregnancy were associated with a 5-fold increased risk of developing GDM. Not only is early risk assessment of diabetes required to improve health outcomes, but also to alleviate the burden on national health services and economies. It is evident that a superior method for assessing diabetes risk is required, enabling physicians to accurately evaluate at-risk patients. Randox Laboratories are manufacturers and distributors of an automated biochemistry adiponectin test for the early risk assessment of T2DM, CVD and metabolic syndrome.

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C421 Horiba Medical ABX Pentra XL 80

Malaria screening in routine hematology

In 2016, 91 countries reported a total of 216 million cases of malaria, an increase of 5 million cases over the previous year. The global tally of malaria deaths reached 445,000 deaths, about the same number reported in 2015. Although malaria case incidence has fallen globally since 2010, the rate of decline has stalled and even reversed in some regions since 2014. Mortality rates have followed a similar pattern. Early and accurate diagnosis of malaria is essential for both rapid and effective disease management and surveillance. High-quality malaria diagnosis is important in all settings as misdiagnosis can result in significant morbidity and mortality. The proportion of febrile children presenting for treatment is mainly taking place in Public Health facilities (from 2013-2015, 35-50 % febrile children presented in sub-Saharan Africa countries). With a clinical sensitivity and specificity reaching 80% of data results performed on P. vivax and P. falciparum, the Malaria flag of HORIBA Medical delivers a Suspicion Malaria Infection screening provided in routine use on hematology analysers. It is combined with the hematology whole blood count and not a separate test with additional costs. This Suspicion Malaria flag is generated by a complex algorithm using the “data mining” technique based on the analysis of many analytical variables of the complete hemogram and not only variables of the automated formula. The Malaria flag is used as a screening test and invites the biologist to implement the usual laboratory techniques for the diagnosis of malaria. The Suspicion Malaria Flag option is available on the ABX Pentra XL 80 and Pentra XLR range and, hence, offers a cost effective and fast malaria screening. Since complete blood count (CBC) and leukocyte differential count (DIF) are the basic, most common tests in clinical laboratories, hematology analysers that can screen for the presence of malaria parasites offer a significant advantage for both potentially malaria-infected patients and busy diagnostic labs. HORIBA hematology systems combine micro sampling, efficiency, robust technology, intuitive software as well as high throughput (rapid one-minute whole blood testing) at costs lower than other methods, such as microscopic examination.

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C422 Beckman Diag DxONE workflow solution

Workflow solution for low-volume laboratories

Beckman Coulter recently announced the U.S. release of its DxONE Workflow Manager, the first and only cloud-based middleware offered by a major in-vitro diagnostics organization, designed to help low-volume laboratories deliver timely results for patient care by enhancing consistency, accuracy and efficiency. Laboratories today are under increased pressure to manage costs and resources, while balancing increasing test volumes. With a limited number of middleware solutions on the market available to support low-volume laboratories, DxONE Workflow Manager fills an industry need to help these laboratories streamline workflow and maximize staff time. It is very user-friendly with everything consolidated to one screen. With DxONE Workflow Manager, laboratories are able to standardize workflows, automate processes and consolidate information. Technologists can manage samples by exception using autoverification, meaning only those samples that fall outside predefined ranges require manual review. Standardizing autoverification rules and automatic reflex testing promotes consistency, and integrating quality control processes supports testing accuracy with less workflow burden.  Middleware plays a significant role in using process automation to improve turnaround time and staff efficiency. Historically, there have been barriers to implementing middleware systems in low-volume laboratories, such as up-front costs and lack of IT infrastructure in both hardware and personnel.  The DxONE Workflow Manager solution has made the benefits of middleware accessible to low-volume laboratories by leveraging cloud-based deployment. This enables laboratories to utilize their existing IT hardware while requiring very little support from hospital IT personnel. These benefits create a total cost of ownership that makes sense for low-volume laboratories given the significant turnaround time and efficiency benefits. 
The system features an intuitive interface designed for ease of use, featuring visual cues that facilitate rapid decision making. From a single screen, technologists get an at-a-glance view of ordering information and patient demographics. Comments and flags are readily visible, alerting users to required actions, based on laboratory-defined criteria. A sample-status overview feature directs immediate focus to items in need of attention. Patient-associated results are consolidated on one screen—organized in graphs and by historical data—strengthening the utility of information for operational and patient-care decisions.
With the integration of DxONE Workflow Manager into their critical functions, laboratories can standardize and automate workflows across Beckman Coulter’s chemistry, immunoassay and hematology platforms. The release of DxONE Workflow Manager builds upon Beckman Coulter’s middleware solutions, which include REMISOL Advance for higher volume laboratories, and expands the company’s DxONE portfolio—a suite of informatics solutions designed to help laboratories improve their operational efficiencies.
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C413 Roche

Enhanced automated procedures significantly reduce manual operations in labs

The recently launched cobas pro integrated solutions is now available for countries accepting the CE mark. This next generation of innovation in the Serum Work Area improves operator experience to help streamline and simplify equipment and processes. With a  simple-to-use and newly designed interface, cobas pro integrated solutions allows for up to 2,200 tests per hour with three modules working in parallel and perfectly synchronized in order to improve efficiency. Furthermore, it boasts up to 3.25 hours less operating time, while 93% of Roche Immunoassays have reaction times of 18 minutes or less. The new cobas pro integrated solutions offers several advanced features, including automated maintenance and cobas AutoCal, together with an intelligent, on-the-fly reagent loading concept. These features aim to optimize the day-to-day experience of laboratory professionals, reducing the time they spend on manual operations. cobas pro integrated solutions introduce key innovations including cobas SonicWash, which is an ultrasonic probe cleaning on the Clinical Chemistry and Ion-Selective Electrode analytical units which assures sample integrity, as well as efficient and flexible sample routing; together with the cobas AutoCal, which is an automated calibration procedure on the clinical chemistry analytical unit which saves precious hands-on time.

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C416 Euroimmun

Automated evaluation of IFA for infection diagnosis

The EUROPattern system has been extended to include computer-aided evaluation of indirect immunofluorescence assays (IFA) for infectious disease diagnosis. Parameters encompass Chlamydia spp., Bartonella spp., Mycoplasma spp., HHV-6, CHIKV, coxsackievirus, EBV, DENV, hantaviruses, sandfly fever viruses, YFV and ZIKV. The assays utilize infected cells, antigen-expressing cells or bacterial smears to detect the corresponding antibodies in patient samples. IFA BIOCHIP Mosaics provide combinations of different substrates for efficient multiplex analyses. The EUROPattern microscope provides automated acquisition of the immunofluorescence images for convenient evaluation at the PC screen. It allows fast automated focusing and image recording for up to 500 fields in less than two hours. Slides are identified by means of matrix codes, eliminating the risk of mix-ups. Results can be checked retrospectively at the microscope if necessary. For selected parameters, e.g. EBV, sophisticated classification software provides positive/negative classification of the fluorescence signals, including titre designations with confidence values for positive samples. Negative results can be verified in batch for increased efficiency. The controlled LED in the microscope provides over 50,000 hours of constant light intensity, ensuring highly reproducible results. Results are consolidated into one report per patient and compared with previous findings. Different software user levels provide a hierarchical review of results, thus increasing security. All fluorescence images and reports are digitally archived. The software can be fully integrated into existing laboratory software (LIS) for a streamlined laboratory routine. The infection parameters complement established EUROPattern applications, such as the fully automated evaluation of ANA, ANCA, Crithidia luciliae, recombinant-cell and antigen-dot IFA.

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C419 Shimadzu

Benchtop MALDI TDF mass spectrometer

The new MALDI-8020 complements Shimadzu’s MALDI family. The linear benchtop time-of-flight mass spectrometer serves various applications in the positive ion mode, such as analysis of proteins, peptides or polymers. It is ideal for researchers developing MALDI-based diagnostic methods, and for routine labs carrying out quality control and fast analysis of intact samples. The MALDI-8020 is fast and accurate, has a high resolution and its compact size makes it fit in any laboratory. The robust design promises reliable analysis and low maintenance. With a mass range of 1-500,000 Da, a mass resolution of more than 5,000 (for ACTH18-39, m/z 2,465), a mass accuracy of < 20 ppm after internal calibration and a sensitivity of 250 amol (Glu-Fib, m/z 1,570), the MALDI-8020 achieves the same specifications as the more advanced version, the Axima Assurance for high throughput screening.  Thanks to its small dimensions of 450 x 745 x 1,055 mm and weight of 86 kg, the new MALDI-8020 fits on any lab workbench. The oil-free diaphragm pump and a turbo pump ensure reliable and low-noise operation (< 55 dB).
Extra-fast motors drive the highspeed stage. Motor installation outside the vacuum reduces the volume to be evacuated, so pumping time after changing of sample is the fastest on the market: around 90 seconds. The 200 Hz solid-state laser allows further optimization of the analysis time. The typical Shimadzu wide-bore ion optics increase ion transmission and reduce the likelihood of contamination. If the source is nevertheless contaminated, it can be cleaned within ten minutes using the UV laser-based TrueClean. The MALDI Solutions software provides intuitive and easy operation, and includes interfaces for evaluating polymer, protein and oligonucleotide spectra. SampleStation, AuraSolution and QC Reporter offer various options for automated lab routines. During sample preparation, data can be collected with the SampleStation software. The barcode reader integrated into the mass spectrometer enables automated measurement using AuraSolution. The QC Reporter software allows specification of different criteria that can be used for automatic evaluation of the analyses. Data is stored in a Microsoft® SQL database with automatic backup. Personalized user logins can be used to document quality control, and different levels can be assigned to individual users. In this way the user is prepared for potential audits.
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C420 DSM Pentapharm

UFH monitoring kit

Pefaclot UFH is a powerful and economic kit to monitor unfractionated heparin (UFH) in patient plasma samples. It has been outlined in several studies that Pefaclot UFH shows excellent reproducibility, accuracy and lot to lot consistency. Pefaclot UFH shows superior accuracy when compared to aPTT and excellent correlation to anti-FXa measurement at a much lower cost(1). It has been shown that Pefaclot UFH routine monitoring was associated with a significantly (p=0.035) reduced daily dose of administered UFH (median 27’000U/day with aPTT vs 25’000U/day with Pefaclot UFH)(2). Data suggest that monitoring with Pefaclot UFH is analytically more accurate and allows more precise dosing. The higher precision and reliability during the induction phase but also for dosing adjustment may result in a reduced number of venipunctures.  As a consequence, the obtained results lead to an overall shorter turnaround time for UFH administration compared to aPTT. Furthermore, the reduced number of tests needed during UFH administration reduces the time spent for lab technicians. The improved UFH administration with reduced doses of needed UFH has the potential to reduce the bleeding risk as well as the risk of developing HIT (heparin induced thrombocytopenia) for patients because of the lower exposure to UFH. In addition to fewer tests being performed, Pefaclot UFH may lead to even more savings as a consequence of lower doses of UFH being administered and fewer blood collection tubes and other consumables. The potential of lower bleeding risk may also reduce the overall duration of the hospital stay. Pefaclot UFH relies on the activation of plasma at the level of the prothrombinase complex and measures the clotting time in seconds. The clotting time is then directly linked to the UFH concentration in the sample. Pefaclot UFH is optimized to give strong clotting signals on optical instruments, but also demonstrates excellent reproducibility on mechanical instruments. It can be applied to all major routine analysers (e.g. from Stago, Siemens, Sysmex, Instrumentation Laboratory).

References
1. Bürki S, Brand B, Escher R et al. Accuracy, reproducibility and costs of different laboratory assays for the monitoring of unfractionated heparin in clinical practice: a prospective evaluation study and survey among Swiss institutions. BMJ Open 2018:8:e022943
2. Korte W, Graf L, Knöpfel C. Replacing the aPTT for monitoring of unfractionated heparin with the Prothrombinase induced Clotting Time (PiCT) – significant influence on dosing. GTH 2017 (Abstract 663)

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C424 Diagenode

All-in-one instrument for molecular diagnostics

The geneLEAD VIII, manufactured by PSS and distributed by Diagenode Diagnostics in Europe, is a new all-in-one automated molecular diagnostics platform designed for carrying out small series of tests (1,000 to 4,000 tests/year), from nucleic acid extraction to patient result in 1,5 hour. This instrument can independently perform up to 8 different real-time PCR tests, without or with extraction validated on whole blood, serum, plasma, urine, CSF, swab, sputum and stool. Combining expertise in the development of molecular diagnostic assays acquired over the last 14 years, Diagenode Diagnostics presents here the first in a range of multiplex tests for the geneLEAD VIII, focused on respiratory and gastrointestinal infections, including Influenza A & B virus, together with respiratory syncytial virus (RSV), Mycobacterium tuberculosis complex, Legionella pneumophila & spp, Adenovirus (mid-2019), Bordetella pertussis & parapertussis (late 2019), Norovirus I / II & Rotavirus (late 2019) and Mycoplasma pneumoniae (2020). The geneLEAD VIII is also compatible with Laboratory Developed Tests (LDT) based on real-time PCR and other detection chemistries. The geneLEAD VIII represents a unique CE-IVD solution which is ready for accreditation, easy-to-use and allowing workflow optimization with the middle-to-high-throughput automated systems in molecular diagnostics laboratories.

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HbA1c assay

DiaSys offers a new enzymatic HbA1c assay – HbA1c net FS – for diagnosis and long-term monitoring of diabetes. This innovative test is setting new standards for accuracy through its outstanding specificity and excellent precision. HbA1c net FS delivers results equivalent to HPLC. Interferences  by hemoglobin variants or other blood components are minimized. The HbA1c net FS assay is standardized against the IFCC reference method and traceable to DCCT/NGSP. Fully automated handling on clinical chemistry platforms including onboard hemolysis allows convenient management of daily workloads.

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