AI Insight
This study evaluated the analytical performance of the Molecision R8, a fully automated molecular diagnostics system, by assessing its nucleic acid extraction and PCR detection modules using hepatitis B virus (HBV) DNA quantification and multiplex assays for sexually transmitted pathogens including Chlamydia trachomatis, Ureaplasma urealyticum, and Neisseria gonorrhoeae. Modular and system-level comparisons against established commercial platforms demonstrated imprecision below 5%, minimal quantitative bias for HBV DNA detection, and agreement rates exceeding 96.5% for qualitative pathogen detection. These results indicate that the R8 system performs comparably or superiorly to existing commercial nucleic acid testing solutions across both serum and genital tract sample types.
Why it matters
Fully automated molecular diagnostics platforms like the Molecision R8 have the potential to reduce manual workload, minimize human error, and improve throughput in clinical laboratories, particularly in settings requiring high-volume infectious disease screening. Reliable performance across multiple assay types supports its feasibility for routine clinical deployment in both quantitative and qualitative molecular testing.
by Yanfang Mo, Xiaowen Wu, Chao Chen, Lixia Liang, Jianyin Su, Chengde Li, Yueying Wang, Ting Wang, Pu Sun, Zhonggang Fang, Zhifang Lin
Objective
To evaluate the functionality of key modules of a novel fully-automated molecular diagnostics system Molecision R8 and the performance of the integrated system.
Methods
The nucleic acid extraction and PCR detection modules were evaluated using HBV DNA assay through precision and comparison with Molecision MP-32 and HongShi SLAN-96, respectively. Instrument comparison of R8 with an open system was conducted using Molecision HBV DNA and Chlamydia trachomatis/Ureaplasma urealyticum/Neisseria gonorrhoeae (CT/UU/NG) triplex assays. Systemic comparison of R8 and combined reagents with Sansure system were conducted on HBV DNA, CT, UU, and NG assays of their own.
Results
In modular evaluation, the imprecision of both modules was all below 5% and Passing-Bablok (PB) regression and Bland-Altman (BA) analysis showed closeness to y = x and biases below 0.15 lg IU/mL. Instrument comparison obtained a regression equation of y = 0.982x + 0.084 and a bias of 0.05 lg IU/mL for HBV DNA detection in serum and agreement rates all above 96.5% for CT, UU and NG detection in genital tract samples. In the systemic comparison, the regression equation was y = 1.024x + 0.096 and the bias was 0 lg IU/mL for HBV DNA. For CT, UU and NG, the agreement rates were also all larger than 96.5%.
Conclusions
Analytical performance of Molecision R8 was superior or comparable to commercial nucleic acid purification and PCR systems. Molecision R8 alone or combined with related reagents are robust in measuring serum and genital tract samples. Overall, Molecision R8 holds strong promise for clinical use.
Source: Performance evaluation of a novel fully-automated molecular diagnostics system Molecision R8