Immunotherapy and Gastrointestinal Toxicities.

Gastrointestinal toxicities secondary to immune checkpoint inhibitors are very frequent. Because in some instances this can be severe or fatal, it is essential to be able to identify immune-related adverse events rapidly. Prompt initiation of systemic immunosuppression can improve outcomes.

Humoral and cellular immunogenicity two months after SARS-CoV-2 messenger RNA vaccines in patients with cancer.

Little is known on the long-lasting humoral response and the T cell activation induced by SARS-CoV-2 mRNA vaccines in patients with cancer. The study assessed the efficacy of the SARS-CoV-2 mRNA vaccines through measuring the seroconversion rate at pre-specified time points and the effect on the T cell immunity in patients with cancers. The study included 131 adult patients with solid or hematological cancer, who received SARS-CoV-2 mRNA vaccines.

SARS-CoV-2 Evolution among Oncological Population: In-Depth Virological Analysis of a Clinical Cohort.

Background: Oncological patients have a higher risk of prolonged SARS-CoV-2 shedding, which, in turn, can lead to evolutionary mutations and emergence of novel viral variants. The aim of this study was to analyze biological samples of a cohort of oncological patients by deep sequencing to detect any significant viral mutations.

Methods: High-throughput sequencing was performed on selected samples from a SARS-CoV-2-positive oncological patient cohort.

Immunogenicity of SARS-CoV-2 messenger RNA vaccines in patients with cancer.

Patients with cancer experience a higher burden of SARS-CoV-2 infection, disease severity, complications, and mortality, than the general population. SARS-CoV-2 mRNA vaccines are highly effective in the general population; however, few data are available on their efficacy in patients with cancer. Using a prospective cohort, we assessed the seroconversion rates and anti-SARS-CoV-2 spike protein antibody titers following the first and second dose of BNT162b2 and mRNA-1273 SARS-CoV-2 vaccines in patients with cancer in US and Europe from January to April 2021.

[Immunotherapy with immune checkpoint inhibitor and skin toxicity].

Dermatologic toxicities appear to be the most prevalent immunotherapy related adverse effects, both with anti-PD-1 and anti-CTLA-4 agents, as well as with the newly developed anti-PD-L1. They occur in more than one-third of the patients treated with immune check point inhibitors, regardless of the cancer being treated. They mainly manifest in the form of self-limiting maculopapular rashes and pruritus.