Prospective Study for Clinical Validation of the Molecular-Based GenePOC GBS Assay for the Detection of the Cfb Gene From Streptococcus Agalactiae Strains in Vaginal/Rectal Swab Specimens, After Lim Broth Enrichment, From Pregnant Women
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 771
- 试验地点
- 8
- 主要终点
- Performance Characteristics
研究概览
简要总结
The primary purpose of this clinical investigation is to verify the performance of the GenePOC GBS Assay on the GenePOC Instrument. This will be achieved by comparing the Assay to the a Culture, a conventional method for detection of Streptococcus agalactiae in vaginal/rectal swab specimens from antepartum women.
详细描述
The GenePOC GBS Test performed on the GenePOC System is a qualitative in vitro diagnostic (IVD) test designed to detect Group B Streptococcus (GBS) DNA from vaginal/rectal swabs from antepartum women following enrichment in Lim broth for 18-24 hours.
The GenePOC GBS Test utilizes automated sample preparation and real-time polymerase chain reaction (PCR) to detect a cfb gene sequence specific to the Streptococcus agalactiae genome. The GenePOC GBS Test is indicated for the identification of antepartum GBS colonization and does not provide susceptibility results. Culture isolates are needed for performing susceptibility testing as recommended for penicillin-allergic women.
The GenePOC GBS is an IVD system is comprised of the GenePOC Diagnostics System and the GenePOC Group B Step [GBS] Test, the components of which are:
- Instrument
- GBS disposable microfluidic cartridges (PIE) (described in this document as PIEs because of the shape of the cartridge)
- GBS Sample Buffer Tube (SBT)
- Sample Transfer Device (STD).
The GenePOC Instrument is fully automated and integrates sample lysis, dilution, amplification and detection of the target sequence in complex samples using real-time Polymerase chain reaction (rtPCR). User intervention is only required for discharging the patient sample into the SBT (sample Buffer Tube), transferring the sample into the PIE and for loading/unloading the PIEs into the instrument. The GenePOC instrument consists of a rotor to spin the PIEs, temperature control, fluorescence detection, a tactile user-friendly interface, two barcode readers, and integrated firmware and software to deliver results to the user. The PIE is a closed system that prevents the risk of contamination.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Antepartum pregnant women
- •18 years old and more
- •Being at a gestation period of 35 to 37 weeks.
- •Vaginal/rectal swab specimen
- •Transport and storage times, and conditions (e.g. room temperature and/or refrigerated) within the labeled indications.
- •Fresh specimens available to be tested with the GenePOC GBS System within 96 hours (4 days) of collection if kept at 2-25°C
- •Fresh specimens must be tested with the Reference Method within 96 hours (4 days) of collection if kept at 2-25°C
- •The GenePOC GBS System and the Reference Method will be performed according to the GenePOC GBS Investigation Documents.
- •Materials use within their expiration date
排除标准
- •Non pregnant women
- •Less than 18 years old
- •Gestation not between 35-37 weeks
- •Transport and storage times and conditions that exceed these Study Protocol requirements
- •The GenePOC GBS System and the Reference Method not performed according to the GenePOC GBS Investigation Documents
- •Materials used beyond their expiration date
- •Specimens without all test results required by this Study Protocol. Specimens that are inadvertently entered into the study that do not meet the specimen inclusion criteria will be made non-compliant.
- •The GenePOC GBS System and the Reference Method not performed according to the GenePOC GBS Investigation Documents.
结局指标
主要结局
Performance Characteristics
时间窗: At the time of the results with Reference Method is confirmed, up to 6 months
To establish the performance characteristics of the GenePOC GBS System for its use in determining the presence of GBS in vaginal/rectal swab, after Lim Broth enrichment, specimens from antepartum pregnant women. Sensitivity and specificity will be established in comparison to the Reference Method. Sensitivity performance results from the comparison of specimens being reported as positive by both method against the total number of specimen reported as positive on the Reference Method only. Sensitivity is reported as a percentage (i.e. concondant positives / concordant positive + discordant positive (\[False Negative\]). Specificity performance results from the comparison of specimens being reported as negative by both method against the total number of specimen reported as negative on the Reference Method only. Specificity is reported as a percentage (i.e. concondant negatives / concordant negatives + discordant negatives (\[False Positive\]).
次要结局
- Positive and Negative Predictive Values(At the time of the results with Reference Method is confirmed, up to 6 months)
- Unresolved Sample Results(At the time of the results with Reference Method is confirmed, up to 6 months)
- Indeterminate Sample Results(At the time of the results with Reference Method is confirmed, up to 6 months)