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In 2017, three groundbreaking immunotherapies for relapsed and/or refractory B-cell acute lymphoblastic leukaemia (ALL) were approved based on impressive outcomes observed in clinical trials. Additional breakthroughs included seminal research into ALL genomics and the importance of adherence to chemotherapy, which will have direct implications for clinical care.
Data published in 2017 underscore the benefit of optimizing anti-HER2 therapy in early stage high-risk HER2-positive disease, and of capecitabine in patients with residual disease after optimal neoadjuvant therapy. In the advanced-stage setting, endocrine therapy combined with cyclin-dependent kinase 4/6 inhibitors, or olaparib could become the preferred option.
2017 saw the publication of clinical trial data and the approval of new treatment approaches for metastatic urothelial carcinoma. Pembrolizumab is now a well-established treatment for patients with disease progression after cisplatin, with high-level evidence supporting its superiority over second-line chemotherapy. For patients ineligible for cisplatin, atezolizumab and pembrolizumab provide meaningful clinical benefit as frontline therapies.
In 2017, results from phase III trials demonstrated the impressive safety and efficacy of adjuvant targeted and immune therapies in patients with resectable stage III–IV melanoma, and raised questions about the surgical management of patients with microscopic sentinel-lymph-node metastases. For patients with unresectable disease, new overall survival data added to the debate about the relative benefits of single-agent anti-PD-1 versus combined anti-PD-1 and anti-CTLA-4 immunotherapy.
2017 has been full of new discoveries that will influence the treatment of colorectal cancer. In the adjuvant setting, 3 months of chemotherapy might now be considered a new standard of care. Various other new treatments and promising biomarkers have also become available that will improve survival outcomes and the quality of life of many patients with metastatic disease.
In 2017, major advances in the treatment of non-small-cell lung cancer (NSCLC) continued to emanate from the fields of molecularly targeted therapy and immunotherapy. In the former, new drugs with improved efficacy and reduced toxicity entered the clinic; in the latter, immune-checkpoint inhibition proved efficacious after chemoradiotherapy for stage III disease, but had disparate results in the frontline treatment of stage IV disease.
Data obtained in the past year underscored the benefit of a triplet regimen comprising bortezomib, lenalidomide, and dexamethasone for patients with newly-diagnosed multiple myeloma, and have provided high-level evidence supporting the safety of adding daratumumab to standard-of-care doublets for those with relapsed and/or refractory disease. As a result, achieving minimal residual disease-negativity at any stage of myeloma is now a realistic possibility.
In 2016, two major trials provided conflicting evidence regarding the role of 1 year of adjuvant therapy with sunitinib for patients with high-risk renal-cell carcinoma. In the second-line metastatic setting, updated data from key trials showed that cabozantinib improved overall survival over everolimus, and nivolumab was associated with a better quality of life compared with everolimus. Finally, a phase II study in previously untreated patients showed cabozantinib to be superior to sunitinib.