Examining clinical trial eligibility for oncology patients with human immunodeficiency virus (HIV): A global cross-sectional analysis.

Abstract

6554 Background: People Living with HIV (PLWH) are at higher risk of developing cancer, and malignancy is the most common cause of death in PLWH in the USA . In 2017 a joint research statement by the American Society of Clinical Oncology and Friends of Cancer Research (ASCO-FCR) examined trial inclusivity, stating PLWH should not be excluded from clinical trials due to HIV positivity alone without justification. It also provided guidance for designing trial inclusion criteria using CD4 count, use of antiretroviral therapy (ART), ART-related drug interactions and HIV-associated complications. To review incorporation of ASCO-FCR recommended wording and current compliance, we examined global eligibility for PLWH in clinical trials. Methods: Clinicaltrials.gov was searched on 15 Nov 2022 for open and recruiting trials worldwide, using terms ‘advanced cancer’ and ‘interventional’. Trials lacking systemic treatment were deemed non-evaluable. Evaluable studies’ eligibility criteria were manually reviewed for specific criterion excluding PLWH or diagnosis/history of immunodeficiency (outright exclusion). Therapy type and study phase were captured and their relationships to outright exclusion were significance tested using odds ratios (OR) with 95% confidence intervals (CI). Results: The search rendered 2388 evaluable clinical trials. Eligibility criteria outrightly excluded PLWH in 1194 (50%) , of which 1113 (93%) were early phase trials (Phase 0-2). 206 evaluable trials (8.6%) permitted inclusion of PLWH aligned with ASCO-FCR guidance, including 3 (0.1%) with a cohort for PLWH. AIDS-defining illness was an exclusion criterion in 27 trials (1%), and specific interactions to ART in 10 (0.4%). Early phase trials had a significantly higher likelihood of outright exclusion of PLWH when compared with late phase trials (OR 2.98; 95% CI 2.16-4.11, p<0.0001). Trials investigating immunomodulatory agents were more likely to outrightly exclude PLWH than those investigating other drug classes (OR 1.60; 95% CI 1.36-1.88, p<0.0001). Criteria which may implicitly exclude PLWH were identified, including 204 (8.5%) citing active/chronic/severe infection, 189 (7.9%) listing CYP and P-gp interaction criteria and 3 (0.1%) "immunodeficiency". Conclusions: Despite adequate time to incorporate, most currently recruiting oncology clinical trials do not use ASCO-FCR guidance for including PLWH. Half of evaluated trials excluded PLWH without reason. Early phase and immunotherapy trials were significantly more likely to exclude PLWH without exception, despite data to support immunotherapy use for PLWH. Covert inclusionary barriers exist in criteria that lack HIV-specific guidance, and this may further exclude PLWH. Consideration of recommendations and guidance in eligibility criteria for oncology trials is critical to address current inequities in care for PLWH and cancer.