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This quality improvement study examines the effectiveness of a learning program for molecular tumor boards to share best practices for providing optimal treatment recommendations in 50 identical simulated cases of advanced cancer.

This cohort study among patients with cancer examines changes in the time from posting of test results in the electronic health record to patient viewing in the patient portal before and after implementation of the 21st Century Cures Act.

This review examines the association of structural racism with lung cancer risk among racial and ethnic minority groups.

This open-label phase 2 randomized clinical trial evaluates the clinical effects and biomarker findings of treatment with neoadjuvant pembrolizumab and carboplatin plus docetaxel in patients with triple-negative breast cancer.

This nonrandomized phase 2 clinical trial assesses the usefulness of osimertinib in previously untreated patients with metastatic non–small cell lung cancer (NSCLC) harboring uncommon EGFR mutations, excluding exon 20 insertion mutations.

This cohort study compares the mortality and hospitalization risks among patients with vs without solid cancer and diagnosed with COVID-19 during the period when the Omicron variant was dominant.

This Viewpoint describes key domains in which the California Cancer Care Equity Act may benefit patients, recommends potential improvements to further expand access and reduce disparities, and suggests possible safeguards to monitor and minimize unintended consequences.

This cohort study investigates stage-specific rates and timing of colorectal cancer recurrence using data from Danish national health registries from 2004 to 2019.

This nonrandomized controlled trial assesses the safety and clinical activity of anti–PD-1 therapy to treat high-risk proliferative verrucous leukoplakia.

This multicenter intervention study conducted at 4 hospital pharmacies in the Netherlands assessed waste reduction and net cost savings attained by redispensing leftover oral anticancer drugs compared with the standard practice of disposal.

This cross-sectional study assesses the availability of cancer-related services in hospitals with predominantly racial and ethnic minority patient populations.

This JAMA Oncology Patient Page describes the accumulation of excess fluid around the heart caused by cancer, known as malignant pericardial effusion.

This systematic review with meta-analysis examines the global distribution of breast cancer stage by country, age group, calendar period, and socioeconomic status using population-based data.

This case series describes organ preservation trends among patients with rectal cancer in the US from 2006 to 2020.

This cohort study examines changes in cancer diagnoses and treatment in the US during the first year of the COVID-19 pandemic.

This case-control study assesses the association between teratoma in the primary tumor or postchemotherapy resections and survival outcomes.

This review examines how high tumor burden and tumor-burdened immune system dysfunction play central roles in the efficacy and safety of CAR T-cell therapy.

This diagnostic study assesses the outcomes of paired DNA and RNA testing on detection of disease-causing germline genetic variants and resolution of variants of uncertain significance.

This Swedish cohort study examines long-term outcomes after a false-positive mammography result and investigates whether the association of a false-positive mammography result with cancer differs by baseline characteristics, tumor characteristics, and time since the false-positive result.

This cohort study compares the mortality risk associated with vaginal estrogen therapy vs no hormone replacement therapy in 2 cohorts of patients with breast cancer in Scotland and Wales.

This cohort study conducted in the Netherlands uses electronic medical records to assess incidence of hypersensitivity reactions with and without H2-receptor agonist premedication before paclitaxel administration.

This Viewpoint discusses how oncologists can support environmental strategies to reduce dependence on petrochemicals, which are associated with cancer risk.