Morshed, Ramin A.

Abstract Introduction: Participation in a clinical trial offers the promise for high-quality medical care for patients with cancer, particularly glioma; however, disparities exist in the accrual of underserved patient populations, including minority patients. A multi-pronged approach for increasing the accrual of underrepresented patients to meet NIH-defined benchmarks includes optimizing patient trial education and counseling. This study seeks to assess the perceptions of the trial counseling process and barriers to trial enrollment among a diverse population of patients with low-and high-grade glioma. Methods: Adult glioma patients who received care from the UCSF Brain Tumor Center from 2020 to 2022 participated in supervised interviews and completed a validated survey, Service Evaluation of Patient Experience of Clinical Trials and Factors Influencing Clinical Trial Entry (SPECIFIC). Thematic analysis, descriptive statistics, and Chi-square tests were used for analysis. Results: One hundred and thirty-six patients completed the SPECIFC questionnaire. There were 44 trial participants (TPs), and 92 non-trial participants (NTPs). Compared to NTPs, TPs were on average 49.8 years old (NTPs 54.6, p=.11) and white (86.3% v. 70%, p=.009). Four core themes emerged from patient perspectives, either as facilitators or barriers to clinical trial participation: 1) Cancer Awareness/Knowledge of Scientific Research 2) Flexible Lifestyle/Affordability 3) Consistency with Values/Faith/Belief System 4) Existing Family/Community Support. Both TPs and NTPs overwhelmingly agreed that clinical trials help improve treatments for cancer. However, compared to 100% of TPs, only 57% of NTPs believed trials offered the best treatment available (p=.001). TPs were more likely to be referred to our institution specifically to enroll in a trial (p=.003), have done prior research on specific experimental treatments (p=.002), have had more than two appointments with the neurosurgeon/neuro-oncologist, and report receiving the most counseling directly from an MD level provider (p=.01). When evaluating the trial counseling process, 93% of TPs reported willingness to consent the same day, but 5% endorsed feeling pressure to participate. TPs were satisfied with the quality of the patient information sheet, with 88% rating the information sheet as good or excellent and 88% reporting that the information sheet was easy to understand. While 14% of TPs believed the information sheet was too long, 27% and 41% desired more information about the trial therapeutic and participation requirements, respectively. Conclusion: Overwhelmingly, trial participants were confident in the information they received and were willing to begin clinical trial enrollment on the same day of receiving information. Interventions to improve the quality and equitable delivery of patient trial education must be paired with other validated multi-dimensional strategies to reach target accrual benchmarks of underserved patient populations to therapeutic clinical trials. Citation Format: Mulki Mehari, Sheantel Reihl, Ramin Morshed, Jasleen Kaur, Mikias Negussie, Ugomma Chukwueke, Alyx Porter, Valy Fontil, Shawn Hervey-Jumper. Engagement and experience with clinical trial counseling in adult glioma patients: A single institution, mixed-methods study [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr A080.

Abstract Purpose This study investigated whether Ki-67 labeling index (LI) correlated with clinical outcomes after SRS for atypical meningiomas. Methods This retrospective study examined 39 patients with atypical meningiomas who underwent SRS over a 10-year study period. Ki-67 LI was categorized into 3 groups: low (< 5%), intermediate (5–10%), and high (> 10%). Local tumor control rates (LCRs), progression-free rates (PFRs), disease-specific survival (DSS) rates, and adverse radiation-induced events (AREs) were evaluated. Results The median follow-up periods were 26 months. SRS was performed at a median prescription dose of 18 Gy for tumors with a median Ki-67 LI of 9.6%. The 3-year LCRs were 100%, 74%, and 25% in the low, intermediate, and high LI groups, respectively (p = 0.011). The 3-year PFRs were 100%, 40%, and 0% in the low, intermediate, and high LI groups (p = 0.003). The 5-year DSS rates were 100%, 89%, and 50% in the low, intermediate, and high LI groups (p = 0.019). Multivariable Cox proportional hazard analysis showed a significant correlation of high LI with lower LCR (hazard ratio [HR], 3.92; 95% confidence interval [CI], 1.18–13.04, p = 0.026), lower PFR (HR, 3.80; 95% CI, 1.46–9.88, p = 0.006), and shorter DSS (HR, 6.55; 95% CI 1.19–35.95, p = 0.031) compared with intermediate LI. The ARE rates were minimal (8%) in the entire group. Conclusion Patients with high Ki-67 LI showed significantly more tumor progression and tumor-related death. Ki-67 LI might offer valuable predictive insights for the post-SRS management of atypical meningiomas.

Abstract Background The NIH Revitalization Act, implemented 29 years ago, set to improve the representation of women and minorities in clinical trials. In this study, we investigate progress made in all phase therapeutic clinical trials for neuroepithelial CNS tumors stratified by demographic-specific age-adjusted disease incidence and mortality. Additionally, we identify workforce characteristics associated with clinical trials meeting established accrual benchmarks. Methods Registry study of published clinical trials for World Health Organization defined neuroepithelial CNS tumors between January 2000 and December 2019. Study participants were obtained from PubMed and ClinicalTrials.gov. Population-based data originated from the CBTRUS for incidence analyses. SEER-18 Incidence-Based Mortality data was used for mortality analysis. Descriptive statistics, Fisher exact, and χ 2 tests were used for data analysis. Results Among 662 published clinical trials representing 49 907 participants, 62.5% of participants were men and 37.5% women (P &lt; .0001) representing a mortality specific over-accrual for men (P = .001). Whites, Asians, Blacks, and Hispanics represented 91.7%, 1.5%, 2.6%, and 1.7% of trial participants. Compared with mortality, Blacks (47% of expected mortality, P = .008), Hispanics (17% of expected mortality, P &lt; .001) and Asians (33% of expected mortality, P &lt; .001) were underrepresented compared with Whites (114% of expected mortality, P &lt; .001). Clinical trials meeting accrual benchmarks for race included minority authorship. Conclusions Following the Revitalization Act, minorities and women remain underrepresented in therapeutic clinical trials for neuroepithelial tumors, relative to disease incidence and mortality. Study accrual has improved with time. This study provides a framework for clinical trial accrual efforts and offers guidance regarding workforce considerations associated with enrollment of underserved patients.