Evans' syndrome induced by atezolizumab plus bevacizumab combination therapy in advanced hepatocellular carcinoma

Immunotherapy-associated autoimmune hemolytic anemia induced by anti-PD-1 therapy in esophageal cancer: A case report and literature review

RATIONALE

Numerous immune checkpoint inhibitors have been approved for clinical use in metastatic advanced esophageal cancer. While immunotherapy brings therapeutic benefits, immune-related adverse events (irAEs) should nevertheless not be overlooked. This paper reports on the first documented case of Autoimmune hemolytic anemia (AIHA) caused by anti-programmed cell death protein-1 therapy in esophageal squamous cancer.

PATIENT CONCERNS

An 84-year-old female patient with metastatic squamous esophageal cancer developed chest tightness, generalized weakness, and a yellowing of the skin after 2 cycles of sintilimab treatment.

DIAGNOSES

Initial examination revealed severe anemia with elevated levels of bilirubin, reticulocytes, lactate dehydrogenase, decreased levels of haptoglobin, and a positive direct antihuman globulin test. The patient was diagnosed with immunotherapy-associated AIHA.

INTERVENTIONS

The patient was promptly treated with corticosteroids and human immunoglobulin, supportive transfusion with washed erythrocytes.

OUTCOMES

Her AIHA was controlled after treatment. Subsequent immunotherapy was not continued, and there was no recurrence of AIHA.

LESSONS

We have identified a rare case of serious adverse reaction caused by anti-PD-1 therapy. We summarize the clinical presentations, diagnosis, and treatment of this case of immunotherapy-related AIHA and discuss the pathogenesis and therapeutic advances in immunotherapy-related AIHA, as well as sintilimab-induced irAEs, in detail. These findings underscore the importance of the early detection, diagnosis, and treatment of these rare and potentially fatal irAEs.

The current status and future of targeted-immune combination for hepatocellular carcinoma

Hepatocellular carcinoma (HCC) is one of the most common cancers and the third leading cause of death worldwide. surgery, transarterial chemoembolization (TACE), systemic therapy, local ablation therapy, radiotherapy, and targeted drug therapy with agents such as sorafenib. However, the tumor microenvironment of liver cancer has a strong immunosuppressive effect. Therefore, new treatments for liver cancer are still necessary. Immune checkpoint molecules, such as programmed death-1 (PD-1), programmed death-ligand 1 (PD-L1), and cytotoxic T lymphocyte antigen-4 (CTLA-4), along with high levels of immunosuppressive cytokines, induce T cell inhibition and are key mechanisms of immune escape in HCC. Recently, immunotherapy based on immune checkpoint inhibitors (ICIs) as monotherapy or in combination with tyrosine kinase inhibitors, anti-angiogenesis drugs, chemotherapy agents, and topical therapies has offered great promise in the treatment of liver cancer. In this review, we discuss the latest advances in ICIs combined with targeted drugs (targeted-immune combination) and other targeted-immune combination regimens for the treatment of patients with advanced HCC (aHCC) or unresectable HCC (uHCC), and provide an outlook on future prospects. The literature reviewed spans the last five years and includes studies identified using keywords such as "hepatocellular carcinoma," "immune checkpoint inhibitors," "targeted therapy," "combination therapy," and "immunotherapy".

Complications of immunotherapy in advanced hepatocellular carcinoma

Immune checkpoint inhibitors (ICIs) are highly effective in cancer treatment. However, the risks associated with the treatment must be carefully balanced against the therapeutic benefits. Immune-related adverse events (irAEs) are generally unpredictable and may persist over an extended period. In this review, we analyzed common irAEs reported in highly cited original articles and systematic reviews. The prevalent adverse reactions include fatigue, pyrexia, rash, pruritus, diarrhea, decreased appetite, nausea, abdominal pain, constipation, hepatitis, and hypothyroidism. Therefore, it is crucial to conduct evaluations not only of gastrointestinal organs but also of cardiac, neurologic, endocrine (including the frequently affected thyroid), and ophthalmic systems before commencing ICIs. This review further explores commonly reported types of irAEs, specific irAEs associated with each ICI agent, rare yet potentially fatal irAEs, and available treatment options for managing them.