New CDC Report; More than a Decade After a Cure, HepC Persists

Last year, the Centers for Disease Control and Prevention (CDC) published a Vital Signs report detailing how “too few people” are  being “treated for Hepatitis C” (subtitled: “Reducing Barriers Can Increase Treatment and Save Lives”). Today, the CDC’s landing page reflects a finding from April 2020 that reads “dramatic increases in Hepatitis C” (subtitled: “CDC now recommends hepatitis C testing for all adults”). And in late June, the CDC published a new Morbidity and Mortality Weekly Report (MMWR) on a worryingly low rate of HCV clearance in the United States.

Our previous blog reviewed last year’s report under the lens of health disparities highlighted by researchers’ review of 48,000 patient charts that met the inclusion criteria for the analysis. Then, much like in this new report, identified that lack of curative treatment access was not uniform and was largely informed by the type of insurance patients qualified for. Those payer types (Medicaid, Medicare, and Commercial plans) also represent patients from different backgrounds – meaning different socio-economic statuses, different genders and racial backgrounds – with different outcomes. Overall, Medicaid recipients were only ever prescribed curative treatment about 23% of the time, whereas Commercial payer patients were able to see that rate increase to 35%. The CDC also recognized these payers, and the politicians who set the public policy of Medicaid, represent incredibly tangible barriers via administrative processes, like prior authorization, and policy barriers, like requiring sobriety, a high level of liver damage, or other restrictions to gaining access to curative treatments.

For this year’s report, researchers partnered with Quest Diagnostics to review the viral clearance (or cure) of approximately 1 million patients with an initial infection (Quest provided data for 1.7 million patients with evidence of a history of HCV during the direct acting agents era, or from January 1, 2013 – December 31, 2022). Based on an estimated 2.4 million people in the United States with HCV, this sample represents about 43% of those believed to have experienced an HCV infection in this time frame. This is noted as a limitation in the data, in part, because it only represents data from one commercial laboratory. Though, reasonable observers can make certain conclusions from this data.

Now, we should also note, only about 88% of the 1.7 million patients identified as having evidence of HCV infection ever had received testing and, of those, 69% were identified as having an initial infection. This means the majority of patients identified were newly diagnosed and not facing a chronic HCV infection. Of those, about 7% of patients showed evidence of viral persistence.

Authors note “These findings reveal substantial missed opportunities to diagnose, treat, and prevent Hepatitis C in the United States.”

Coverage was highest among those enrolled in commercial insurance (50%) and lowest in Medicare and Medicaid (8% and 9%, respectively). Particularly startling in the differences between payer types was the prevalence of viral testing; those with an unspecified payor type were screened at about 79% and those with commercial insurance or Medicare had a testing prevalence of about 91%.

Patients with “other”, “unspecified”, or Medicaid as their insurance or payer had showed a lower viral clearance rate (23%, 33% and 31% respectively) than their counterparts enrolled in Medicare or commercial plans (40% and 45%, respectively). Overall, the cure rate was about 34%.

The age range with the highest rate of HCV diagnoses was 40-59 years, representing about 43% of the patient records reviewed. 60% were identified in their charts as male. However, the highest rate of viral clearance was among those aged over 60 and the lowest was for those aged between 20-29 years.

Other limitations to the data include a lack of uniformity in the follow-up period between testing, which might lead to some difference in rates. Similarly, patients might use or be referred to a different lab for follow-ups. Though, the data also does not follow patients and would not capture any representation of subsequent reinfection and cannot make any assumptions as to clearance or viral persistence among those who did not have RNA testing (and referral for treatment) – meaning the data likely underestimates the patients in each of these categories.

Advocates can look toward these data and findings to inform necessary policy changes, particularly by payer type and in seeking appropriate provider activation on screening and treatment. The sheer reality is HCV is both preventable and curable and policymakers and payers need to work more efficiently in order to prevent the approximate 14,000 HCV related deaths this country faces annually.