RealTime CT
The Abbott RealTime CT assay is an in vitro polymerase chainreaction (PCR) assay for the direct, qualitative detection of the plasmid DNA for C. trachomatis in female endocervical or vaginal swab specimens, male urethral swab specimens, or in male and female urine specimens.
| Abbott RealTime CT Performance |
|
| Technology | Homogenous real-time PCR |
| Sensitivity | 320 plasmid copies of CT target DNA per assay |
| Specificity | No cross-reactivity with 111 organisms |
| Interference | No interference with 26 substances |
| Internal Control | Added to lysis buffer during extraction and detected with all samples |
| Collection Device | Abbott multi-Collect Specimen Collection Kit |
Abbott RealTime CT Comparison Study to Comparator Assay
A total of 623 specimens including female endocervical and vaginal swabs,male urethral swabs, and male and female urines were obtained from patients attending STD clinics. The swab specimens were always collected first with the comparator assay collection kit and then with the Abbott multi-Collect Specimen Collection Kit.
| Positive Agreement | Negative Agreement | ||||||
| Analyte | Specimens (n) | Ratio | (%) | 95% Cl | Ratio | (%) | 95% Cl |
| CT | 621 | 116/127 | 91.3 | (85.03, 95.60) | 488/494 | 98.9 | (97.38, 99.55) |
The Abbott multi-Collect Specimen Collection Kit for use with CT, is now available with pierceable caps!

- Pierceable caps eliminate the need to uncap each tube
- Improving lab workflow
- Minimizing cross contamination
- Reducing potential for repetitive motion injuries
- No swab transfer or manual expression of swabs
- No sample centrifugation or vortexing
- No manual pipetting or addition of lysis buffer
Development Philosophy
Today's clinical molecular diagnostics laboratory must have confidence in the quality of their C.trachomatis patient results. As a result of our real-time PCR development philosophy, Abbott RealTime CT is engineered to be both sensitive and specific for the detection of C. trachomatis from a single sample.
Accurate Detection of CT is Dependent Upon a Combination of:
- Primer and Probe Design
- Sample Purification
- Incorporation of an Internal Control
| Single Stranded Linear Probe |


