African Americans are less likely to receive curative treatment for hepatocellular carcinoma

Temporal trends of health disparity in the utilization of curative-intent treatments for hepatocellular carcinoma: are we making progress?

BACKGROUND

Liver-directed treatments - ablative therapy (AT), surgical resection (SR), liver transplantation (LT), and transarterial chemoembolization (TACE) - improve the overall survival of patients with early-stage hepatocellular carcinoma (HCC). Although racial and socioeconomic disparities affect access to liver-directed therapies, the temporal trends for the curative-intent treatment of HCC remain to be elucidated.

METHODS

This study performed chi-square, logistic regression, and temporal trends analyses on data from the Nationwide Inpatient Sample from 2011 to 2019. The outcome of interest was the rate of AT, SR, LT (curative-intent treatments), and TACE utilization, and the primary predictors were racial/ethnic group and socioeconomic status (SES; insurance status).

RESULTS

African American and Hispanic patients had lower odds of receiving AT (African American: odds ratio [OR], 0.78; P < .001; Hispanic: OR, 0.84; P = .005) and SR (African American: OR, 0.71; P < .001; Hispanics: OR, 0.64; P < .001) than White patients. Compared with White patients, the odds of LT was lower in African American patients (OR, 0.76; P < .001) but higher in Hispanic patients (OR, 1.25; P = .001). Low SES was associated with worse odds of AT (OR, 0.79; P = .001), SR (OR, 0.66; P < .001), and LT (OR, 0.84; P = .028) compared with high SES. Although curative-intent treatments showed significant upward temporal trends among White patients (10.6%-13.9%; P < .001) and Asian and Pacific Islander/other patients (14.4%-15.7%; P = .007), there were nonsignificant trends among African American patients (10.9%-10.1%; P = .825) or Hispanic patients (12.2%-13.7%; P = .056).

CONCLUSION

Our study demonstrated concerning disparities in the utilization of curative-intent treatment for HCC based on race/ethnicity and SES. Moreover, racial/ethnic disparities have widened rather than improved over time.

A Longitudinal Analysis of Mortality Related to Chronic Viral Hepatitis and Hepatocellular Carcinoma in the United States

(1) Background: Hepatocellular carcinoma (HCC) contributes to the significant burden of cancer mortality in the United States (US). Despite highly efficacious antivirals, chronic viral hepatitis (CVH) remains an important cause of HCC. With advancements in therapeutic modalities, along with the aging of the population, we aimed to assess the contribution of CVH in HCC-related mortality in the US between 1999-2020. (2) Methods: We queried all deaths related to CVH and HCC in the multiple-causes-of-death files from the CDC Wide-ranging Online Data for Epidemiologic Research (WONDER) database between 1999-2020. Using the direct method of standardization, we adjusted all mortality information for age and compared the age-adjusted mortality rates (AAMRs) across demographic populations and by percentile rankings of social vulnerability. Temporal shifts in mortality were quantified using log-linear regression models. (3) Results: A total of 35,030 deaths were identified between 1999-2020. The overall crude mortality increased from 0.27 in 1999 to 8.32 in 2016, followed by a slight reduction to 7.04 in 2020. The cumulative AAMR during the study period was 4.43 (95% CI, 4.39-4.48). Males (AAMR 7.70) had higher mortality rates compared to females (AAMR 1.44). Mortality was higher among Hispanic populations (AAMR 6.72) compared to non-Hispanic populations (AAMR 4.18). Higher mortality was observed in US counties categorized as the most socially vulnerable (AAMR 5.20) compared to counties that are the least socially vulnerable (AAMR 2.53), with social vulnerability accounting for 2.67 excess deaths per 1,000,000 person-years. (4) Conclusions: Our epidemiological analysis revealed an overall increase in CVH-related HCC mortality between 1999-2008, followed by a stagnation period until 2020. CVH-related HCC mortality disproportionately affected males, Hispanic populations, and Black/African American populations, Western US regions, and socially vulnerable counties. These insights can help aid in the development of strategies to target vulnerable patients, focus on preventive efforts, and allocate resources to decrease HCC-related mortality.

Influence of Health Insurance Types on Clinical Cancer Care Accessibility and Quality Using All of Us Database

Background and Objectives: Cancer, as the second leading cause of death in the United States, poses a huge healthcare burden. Barriers to access to advanced therapies influence the outcome of cancer treatment. In this study, we examined whether insurance types affect the quality of cancer clinical care. Materials and Methods: Data for 13,340 cancer patients with Purchased or Medicaid insurance from the All of Us database were collected for this study. The chi-squared test of proportions was employed to determine the significance of patient cohort characteristics and the accessibility of healthcare services between the Purchased and Medicaid insurance groups. Results: Cancer patients who are African American, with lower socioeconomic status, or with lower educational attainment are more likely to be insured by Medicaid. An analysis of the survey questions demonstrated the relationship between income and education level and insurance type, as Medicaid cancer patients were less likely to receive primary care and specialist physician access and more likely to request lower-cost medications. Conclusions: The inequities of the US healthcare system are observed for cancer patient care; access to physicians and medications is highly varied and dependent on insurance types. Socioeconomic factors further influence insurance types, generating a significant impact on the overall clinical care quality for cancer patients that eventually determines treatment outcomes and the quality of life.

Immunotherapy Efficacy in Advanced Hepatocellular Carcinoma in a Diverse and Underserved Population in the United States

Background 

  Incidence of hepatocellular cancer (HCC) in the Bronx is 61% higher than the rest of New York State. Underserved populations are not well represented in clinical trials of immune checkpoint inhibitors (ICI).

Methods

Demographics were tabulated for 194 patients treated with ICI at the Montefiore-Einstein Comprehensive Cancer Center (MECCC) between 2017 and 2022. Categorical variables were analyzed by Chi-squared test, and survival was analyzed using Kaplan-Meier (KM) curves.

Results

MECCC patients were 40.7% Hispanic and 20.6% Black, compared with 3% and 2%, respectively, in the landmark IMbrave 150 study. Median overall survival (mOS) on ICI was 9.0 months, 25.0 months for the 100 (51.5%) favorable-prognosis Child Pugh A (CPA) patients included in HCC clinical trials. Disease control rate (DCR) was 58.5% among 123 evaluable patients per mRECIST 1.1. Baseline liver function, as defined by CP and the Model for End-Stage Liver Disease-Sodium (MELD-Na), correlated with survival (p < 0.001). Hepatitis C Virus (HCV) and alcoholism were over-represented relative to National Cancer Institute (NCI) data (56.2% vs 4.7% and 38.7% vs 8.2%, respectively). HCV treatment correlated with prolonged survival in infected patients (p = 0.0017). AFP decline correlated with response (p = 0.001). Hispanic patients lived longer when clinical variables were controlled for (mOS 52 vs 23 months; p = 0.011).

Conclusion

In an underserved HCC population, ICI yielded a DCR of 58.5% and low rates of severe toxicity. This work highlights ICI efficacy in minority groups, a need for earlier HCC diagnosis and for studies of genetic and environmental factors in Hispanics with HCC.

Ethnic differences in hepatocellular carcinoma prevalence and therapeutic outcomes

BACKGROUND

Hepatocellular carcinoma (HCC) is a leading cause of cancer-related death worldwide. The incidence of HCC is affected by genetic and non-genetic factors. Genetically, mutations in the genes, tumor protein P53 (TP53), catenin beta 1 (CTNNB1), AT-rich interaction domain 1A (ARIC1A), cyclin dependent kinase inhibitor 2A (CDKN2A), mannose 6-phosphate (M6P), smooth muscle action against decapentaplegic (SMAD2), retinoblastoma gene (RB1), cyclin D, antigen presenting cells (APC), AXIN1, and E-cadherin, have been shown to contribute to the occurrence of HCC. Non-genetic factors, including alcohol consumption, exposure to aflatoxin, age, gender, presence of hepatitis B (HBV), hepatitis C (HCV), and non-alcoholic fatty liver disease (NAFLD), increase the risk of HCC.

RECENT FINDINGS

The severity of the disease and its occurrence vary based on geographical location. Furthermore, men and minorities have been shown to be disproportionately affected by HCC, compared with women and non-minorities. Ethnicity has been reported to significantly affect tumorigenesis and clinical outcomes in patients diagnosed with HCC. Generally, differences in gene expression and/or the presence of comorbid medical diseases affect or influence the progression of HCC. Non-Caucasian HCC patients are significantly more likely to have poorer survival outcomes, compared to their Caucasian counterparts. Finally, there are a number of factors that contribute to the success rate of treatments for HCC.

CONCLUSION

Assessment and treatment of HCC must be consistent using evidence-based guidelines and standardized outcomes, as well as international clinical practice guidelines for global consensus. Standardizing the assessment approach and method will enable comparison and improvement of liver cancer research through collaboration between researchers, healthcare providers, and advocacy groups. In this review, we will focus on discussing epidemiological factors that result in deviations and changes in treatment approaches for HCC.

Underestimation of Cirrhosis-Related Mortality in the Medicare Eligible Population, 1999-2018

The burden of cirrhosis may be increasing, especially among the elderly. A recent updated definition of cirrhosis has a >90% positive predictive value for identifying cirrhosis and cirrhosis-related complications.¹ We hypothesized that cirrhosis-related mortality is underestimated, and that the elderly are disproportionally impacted. In this study, we aimed to examine trends in liver-related mortality using this updated definition among the elderly and to identify changes by relevant subsets of gender, race, and rurality.

Healthcare Disparities in Interventional Radiology

Racial, ethnic, and sex-based healthcare disparities have been documented for the past several decades. Nonetheless, disparities remain firmly entrenched in our care delivery systems, with multiple contributing factors, including patient interactions with care providers, systemic barriers to access, and socioeconomic determinants of health. Interventional radiology is also subject to these drivers of health inequity. In this review, documented disparities for the most common conditions being addressed by interventional radiologists are summarized; their magnitude is quantified where relevant, and underlying drivers are identified. Specific examples are provided to illustrate how medical, cultural, and socioeconomic factors interact to produce unequal outcomes. By outlining known disparities and common contributors, this review aims to motivate future efforts to mitigate them.

Black race is independently associated with underutilization of transplantation for clinical T1 hepatocellular carcinoma

BACKGROUND

Hepatocellular carcinoma (HCC) is a leading cause of cancer mortality. Operative management of early disease includes ablation, resection, and transplantation. We compared the operative management of early-stage HCC in patients stratified by race.

METHODS

We identified patients with cT1 HCC and Charlson-Deyo score 0-1 in the National Cancer Database (2004-2016). We compared operative/non-operative management by race, adjusting for clinicodemographic variables. We performed marginal standardization of logistic regression to ascertain adjusted probabilities of resection or transplantation in patients under 70 years of age with insurance.

RESULTS

A total of 25,029 patients were included (White = 20,410; Black = 4619). After adjusting for clinico demographic variables, Black race was associated with a lower likelihood of undergoing operative intervention (OR 0.89,p = 0.009). Black patients were more likely to undergo resection (OR 1.23,p < 0.001) and less likely to undergo transplantation (OR 0.60,p < 0.001). Marginal standardization models demonstrated Black race was associated with increased probability of resection in patients >50yrs, with private insurance/Medicare, and lower probability of transplantation regardless of age or insurance payor.

CONCLUSION

Black race is associated with lower rates of hepatic transplantation and higher rates of hepatic resection for early HCC regardless of age or insurance payor. The etiology of these disparities is multifactorial and correcting the root causes represents a critical area for improvement.

Cystic fibrosis patients on cystic fibrosis transmembrane conductance regulator modulators have a reduced incidence of cirrhosis

BACKGROUND

Cystic fibrosis transmembrane conductance regulator (CFTR) modulators significantly improve pulmonary function in patients with cystic fibrosis (CF) but the effect on hepatobiliary outcomes remains unknown. We hypothesized that CF patients on CFTR modulators would have a decreased incidence of cirrhosis compared to patients not on CFTR modulators or on ursodiol.

AIM

To investigate the effect of CFTR modulators on the development of cirrhosis in patients with CF.

METHODS

A retrospective analysis was performed using Truven MarketScan from January 2012 through December 2017 including all patients with a diagnosis of CF. Patients were excluded if they underwent a liver transplantation or if they had other etiologies of liver disease including viral hepatitis or alcohol use. Subjects were grouped by use of CFTR modulators, ursodiol, dual therapy, or no therapy. The primary outcome was development of cirrhosis. Kaplan-Meier curves estimated the incidence of cirrhosis and log-rank tests compared incidence curves between treatment groups.

RESULTS

A total of 7201 patients were included, of which 955 (12.6%) used a CFTR modulator, 529 (7.0%) used ursodiol, 105 (1.4%) used combination therapy, and 5612 (74.3%) used neither therapy. The incidence of cirrhosis was 0.1% at 1 year and 0.7% at 4 years in untreated patients, 5.9% and 10.1% in the Ursodiol group, and 1.0% and 1.0% in patients who received both therapies. No patient treated with CFTR modulators alone developed cirrhosis. Patients on CFTR modulators alone had lower cirrhosis incidence than untreated patients (P = 0.05), patients on Ursodiol (P < 0.001), and patients on dual therapy (P = 0.003). The highest incidence of cirrhosis was found among patients treated with Ursodiol alone, compared to untreated patients (P < 0.001) or patients on Ursodiol and CFTR modulators (P = 0.01).

CONCLUSION

CFTR modulators are associated with a reduction in the incidence of cirrhosis compared to other therapies in patients with CF.

Racial and Ethnic Disparities in Survival Among Patients With Hepatocellular Carcinoma in the United States: A Systematic Review and Meta-Analysis

BACKGROUND AND AIMS

Hepatocellular carcinoma (HCC) is the fastest rising cause of cancer-related death in the United States; however, HCC incidence and mortality are not equally distributed among racial and ethnic groups. Our aim was to characterize the direction and magnitude of racial and ethnic disparities in overall survival and early tumor detection among patients with HCC.

METHODS

We searched MEDLINE, EMBASE and Cochrane databases from inception through August 2020 for studies reporting HCC outcomes (early stage presentation and overall survival) by race and ethnicity. We calculated pooled hazard ratios (HRs) and odds ratios (ORs) for each racial and ethnic group (White, Black, Hispanic, Asian) using the DerSimonian and Laird method for a random-effects model.

RESULTS

We identified 35 articles comprising 563,097 patients (53.0% White, 17.3% Black, 18.4% Hispanic, 5.0% Asian). Compared with White patients, Black patients had worse survival (pooled HR 1.08; 95% CI, 1.05 - 1.12), whereas Hispanic (pooled HR 0.92; 95% CI, 0.87 - 0.97) and Asian (pooled HR 0.81; 95% CI, 0.73 - 0.88) patients had better survival. Among articles reporting tumor stage (n = 20), Black patients had lower odds of early stage HCC compared with White patients (OR, 0.66; 95% CI, 0.54 - 0.78). Conversely, there was no difference in odds of early HCC detection for Asian (OR, 1.01; 95% CI, 0.97 - 1.05) or Hispanic patients (OR, 0.87; 95% CI, 0.74 - 1.01) compared with White patients. The most common limitation of studies was risk of residual confounding from socioeconomic status and liver dysfunction.

CONCLUSIONS

There are significant racial and ethnic disparities in HCC prognosis in the United States, with Black patients having worse overall survival and Hispanic and Asian patients having better overall survival compared with White patients. Interventions are needed to reduce disparities in early HCC detection to improve HCC prognosis.

Race/Ethnicity Is Not Independently Associated with Risk of Adverse Waitlist Removal among Patients with HCC Exception Points

(1) Background: Since 2015, exception points have been awarded to appropriate candidates after six months of waitlist time to allow more equitable access to liver transplants regardless of hepatocellular carcinoma status. However, it remains unknown whether racial disparities in outcomes among waitlisted patients remain after the introduction of a 6-month waiting period for exception points. (2) Methods: Using the United Network for Organ Sharing database, we identified 2311 patients diagnosed with hepatocellular carcinoma listed for liver transplant who received exception points from 2015 to 2019. The outcome of interest was waitlist survival defined as the composite outcome of death or removal for clinical deterioration. Competing risk analysis was used to identify factors associated with death or removal for clinical deterioration. The final model adjusted for age, sex, race/ethnicity, blood type, diabetes, obesity, laboratory MELD score, tumor size, AFP, locoregional therapies, UNOS region, and college education. (3) Results: No difference was found in the risk of adverse waitlist removal among ethnic/racial groups.

African Immigrants in New York City with Hepatitis B-Related Hepatocellular Carcinoma Demonstrate High Morbidity and Mortality

Guidelines recommend hepatitis B (HBV) testing in individuals from endemic areas, and if positive, screening for hepatocellular carcinoma (HCC). While screening programs are well established in the Asian immigrant population in New York City (NYC), less is known about the characteristics of HBV/HCC among the African immigrant community. A retrospective review was performed of HCC cases from 2005 to 2018 at our institution. Country of origin was not documented in the electronic medical record; therefore, African immigrant status was approximated using self-identified race/ethnicity, positive HBV status, and an online registry to determine country of origin based on last name. Surnames with the greatest prevalence or density in an African country were considered. Among 4400 patients with HCC, 472 identified as non-Hispanic Black; of these, 86 were HBV+. Based on surname, it was estimated that 33 individuals were likely immigrants from Africa. In this group, median age of HCC diagnosis was 48 years (IQR 43-55). In patients with an available date of HBV diagnosis (n = 24), 17 (71%) were unaware of their HBV status when they presented with HCC. Zero patients were diagnosed with HCC through routine screening, most patients (66%) were diagnosed upon imaging evaluation of symptoms. Twelve patients (36%) underwent resection or transplantation; the remaining 64% were ineligible for surgical treatment. Of the 26 patients with follow-up data, 18 (69%) died of disease or were critically ill at last encounter, and of these, 14 (77%) died within 1 year of HCC diagnosis. In conclusion, African immigrants in NYC with HBV/HCC are at high risk of HCC related mortality at a young age. Most were unaware of their hepatitis status at the time of HCC diagnosis. No patients were enrolled in routine HCC screening; the majority were diagnosed based on imaging obtained for symptoms. Most individuals presented with inoperable disease, and the majority died within months of diagnosis. Awareness of these findings may help healthcare providers improve patient outcomes.

Racial and Sex Disparities in Hepatocellular Carcinoma in the USA

PURPOSE OF REVIEW

In this review, we aim to provide a summary of the current literature on race and gender disparities in hepatocellular carcinoma (HCC) incidence, stage at diagnosis, treatment and prognosis in the United States.

RECENT FINDINGS

HCC incidence rates are rising in the U.S. in all racial/ethnic groups except for Asian/Pacific Islanders, with disproportionate rises and the highest rates among Hispanics compared to Blacks and non-Hispanic whites. There are striking sex disparities in HCC incidence and mortality; however, with the shifting epidemiology of HCC risk factors in the U.S, there is recent evidence that HCC is trending towards less male predominance, particularly among younger birth cohorts. Despite significant advances in HCC treatment over the past decade, disparities in HCC surveillance and treatment receipt persist among racial and ethnic minorities and the socioeconomically disadvantaged. Black patients continue to experience worse survival outcomes than non-Black patients with HCC.

SUMMARY

There are significant racial and gender disparities in HCC incidence, treatment, and mortality in the U.S. Though these disparities are well-documented, data are still limited on the specific determinants driving disparities in HCC. To achieve health equity for all patients with HCC, we must advance beyond simply reporting on disparities and begin implementing targeted interventions to eliminate disparities.

Higher expression of SATB2 in hepatocellular carcinoma of African Americans determines more aggressive phenotypes than those of Caucasian Americans

In the United States, Hepatocellular Carcinoma (HCC) incidence has tripled over the past two decades. The disease has disproportionately affected minority and disadvantaged populations. The purpose of this study was to examine the expression of SATB2 gene in HCC cells derived from African Americans (AA) and Caucasian Americans (CA) and assess its oncogenic potential by measuring cell viability, spheroid formation, epithelial‐mesenchymal transition (EMT), stem cell markers and pluripotency maintaining factors in cancer stem cells (CSCs). We compared the expression of SATB2 in human primary hepatocytes, HCC cells derived from AA and CA, and HCC CSCs. Hepatocellular carcinoma cells derived from AA expressed the higher level of SATB2 than those from CA. By comparison, normal human hepatocytes did not express SATB2. Higher expression of SATB2 in HCC cells from AA was associated with greater growth rate, cell viability, colony formation and EMT characteristics than those from CA. Knockout of SATB2 in CSCs by Crispr/Cas9 technique significantly inhibited the expression of SATB2 gene, stem cell markers (CD24, CD44 and CD133), pluripotency maintaining factors (c‐Myc, KLF4, SOX2 and OCT4), and EMT compared with non‐targeting control group. The expression of SATB2 was negatively correlated with miR34a. SATB2 rescued the miR‐34a‐mediated inhibition of CSC's viability. These data suggest that SATB2 is an oncogenic factor, and its higher expression may explain the disparity in HCC outcomes among AA.

Comparison of Liver Transplant Wait-List Outcomes Among Patients With Hepatocellular Carcinoma With Public vs Private Medical Insurance

IMPORTANCE

There are well-documented racial/ethnic and socioeconomic disparities in access to health care among patients with hepatocellular carcinoma (HCC); however, there are little data on the association of insurance type with liver transplant (LT) wait-list outcomes for patients with HCC.

OBJECTIVE

To examine LT wait-list outcomes for patients with HCC and public insurance compared with patients with private insurance.

DESIGN, SETTING, AND PARTICIPANTS

This single-center cohort study included 705 adult patients with HCC who had Model for End-Stage Liver Disease exceptions and were included on a waiting list for LT from January 1, 2010, to December 31, 2016. Patients with Kaiser Permanente medical insurance, other private medical insurance, or public medical insurance were included. Data analysis was conducted from May 2018 to October 2018.

MAIN OUTCOMES AND MEASURES

The main outcome was cumulative incidence of LT waiting list dropout within 2 years of waiting list enrollment (baseline). Secondary outcomes included competing-risks analysis to identify risk factors associated with wait-list outcomes.

RESULTS

Among 705 patients (median [interquartile range] age, 61 [57-65] years; 537 [76.2%] men) with HCC on an LT waiting list, 349 patients (49.5%) had Kaiser Permanente insurance, 157 patients (22.3%) had other private insurance, and 199 patients (28.2%) had public insurance. Median (interquartile range) follow-up was 13.2 (7.8-18.7) months. Tumor characteristics were similar among insurance types. The cumulative incidence of dropout owing to tumor progression or death within 2 years of baseline was 21.8% (95% CI, 17.2%-26.7%) among the Kaiser Permanente insurance group, 25.5% (95% CI, 18.6%-33.0%) among the other private insurance group, and 35.5% (95% CI, 28.3%-42.7%) among the public insurance group (P < .001). The cumulative incidence of LT within 2 years of baseline was 67.3% (95% CI, 61.2%-72.6%) among the Kaiser Permanente insurance group, 64.1% (95% CI, 55.2%-71.7%) among the other private insurance group, and 48.5% (95% CI, 40.4%-56.1%) among the public insurance group (P < .001). In competing-risks multivariable analysis compared with patients with Kaiser Permanente insurance, patients with public insurance were associated with increased risk of dropout (hazard ratio [HR], 1.69 [95% CI, 1.17-2.43]; P = .005), but patients with other private insurance were not (HR, 1.40 [95% CI, 0.94-2.08]; P = .10). Waiting list dropout was also significantly associated with an α-fetoprotein level 100 ng/mL or higher (HR, 2.8 [95% CI, 1.98-3.88]; P < .001), Model for End-Stage Liver Disease score at baseline (HR per point, 1.06 [95% CI, 1.03-1.09]; P < .001), and 3 or more lesions at baseline (HR vs 1 lesion of 2- to 3-cm diameter, 2.07 [95% CI, 1.27-3.37]; P = .004).

CONCLUSIONS AND RELEVANCE

In this large cohort of patients with HCC on an LT waiting list, patients with public insurance were associated with worse wait-list outcomes compared with patients with Kaiser Permanente insurance or other private insurance, despite similar tumor-related characteristics at baseline. Improved health care coordination and delivery may be options to reduce these disparities.