Understanding Dual Stain in HPV Triage (ASCCP 2024 Update)

Dr. Chapa’s Clinical Pearls.

The U.S. Preventive Services Task Force and the World Health Organization recommend primary HPV screening, starting at age 25, as an option (some as preferred) for cervical cancer screening. Although primary HPV screening is as effective as cotesting at detecting cervical cancer, primary HPV screening decreases the number of lifetime screenings needed. The primary HPV screening tests approved by the U.S. Food and Drug Administration (FDA) are the Roche Cobas and BD Onclarity tests. HPV results for the Roche and BD tests can be reported as a pooled result. This means the physician receives a result of negative or positive, in which positive indicates that at least one, but possibly more, types of high-risk HPV were identified in the sample. HPV genotyping options differ by manufacturer. Roche Cobas reports HPV 16 and 18 individually and groups 12 other types (i.e., positivity means at least one of the 12 types triggered the positive result). BD Onclarity reports six individual HPV types (16, 18, 31 [the highest risk going immediately to colposcopy], 45, 51, and 52), and combined types (33/58), (35/39/68). Now, as of March/April 2024, the ASCCP has recognized another important and clinically useful HPV and co-test TRIAGE tool, the DUAL STAIN. This pertains only to the ROCHE COBAS HPV test. In this episode, we will review this latest ENDURING GUIDELINES update to the 2019 ASCCP management algorithms (already updated in the ASCCP app).