Journal

Current Oncology Reports

Papers (34)

Advances in the Management of Recurrent Cervical Cancer: State of the Art and Future Perspectives

Abstract Purpose of Review This review aims to give an insight into the currently available options for recurrent/metastatic (R/M) cervical cancer (CC), along with the main future, potentially practice-changing perspectives in this field. Recent Findings Improvements in terms of tumor responses were observed with the use of immune checkpoints inhibitors (ICIs) in the previously treated CC population, followed by emerging striking data in terms of both antitumor activity and survival rates with the addition of the ICIs to platinum-based chemotherapy with or without bevacizumab in the first-line setting. Furthermore, the CC treatment landscape took another step forward in 2021 with the introduction of antibody–drug conjugates (ADCs) in the second-line setting, a highly targeted therapeutic strategy, which demonstrated to be a valid alternative option in the recurrent setting. Summary R/M CC is a hard-to-treat disease. However, after several years of limited systemic therapeutic options for the recurrent setting, the year 2018 marked a turning point for R/M CC patients, with the introduction of immunotherapy in the treatment paradigm, which completely reshaped the therapeutic armamentarium of the disease. Besides, another valuable treatment option represented by ADCs demonstrated its efficacy in the recurrent setting, thus further widening the treatment landscape for those patients. Yet, the introduction of immunotherapy in the upfront setting brought along new issues to be addressed such as the emerging ICIs resistance and the following need for alternative options in the post-ICIs setting. Several innovative therapeutic strategies are under investigation in ongoing clinical trials, with the aim of overcoming ICIs resistance with the addition of immunomodulatory agents or bypassing the ICIs resistance with novel alternative drugs.

First-Line Management of Advanced High-Grade Serous Ovarian Cancer

Abstract Purpose of Review Epithelial ovarian cancer is a disease that encompasses a number of histologically and molecularly distinct entities; the most prevalent subtype being high-grade serous (HGS) carcinoma. Standard first-line treatment of advanced HGS carcinoma includes cytoreductive surgery plus intravenous paclitaxel/platinum-based chemotherapy. Despite excellent responses to initial treatment, the majority of patients develop recurrent disease within 3 years. The introduction of the vascular endothelial growth factor (VEGF) inhibitor, bevacizumab, and poly(ADP-ribose) polymerase (PARP) inhibitors into first-line management has changed the outlook for this lethal disease. In this review, we summarise the most recent clinical trials that determine current primary therapy of advanced HGS carcinoma and the ongoing trials that aim to change management in the future. Recent Findings Recent phase III clinical trials have shown that delayed primary surgery after completing neo-adjuvant chemotherapy is non-inferior to immediate primary surgery, but could provide a survival benefit in FIGO (International Federation of Gynecology and Obstetrics) stage IV disease. The use of weekly intravenous chemotherapy regimens has not been proven to be more effective than standard 3-weekly regimens in Western patient populations, and the use of intraperitoneal chemotherapy remains controversial in the first-line setting. In contrast, newer systemic anti-cancer therapies targeting angiogenesis and/or HR-deficient tumours have been successfully incorporated into front-line therapeutic regimens to treat HGS carcinoma. Recent results from randomised trials investigating the use of PARP inhibitors as monotherapy and in combination with the anti-angiogenic agent, bevacizumab, have demonstrated highly impressive efficacy when combined with traditional first-line multi-modality therapy. Summary Management of HGS carcinoma is evolving, but further work is still required to optimise and integrate tumour and plasma biomarkers to exploit the potential of these highly efficacious targeted agents.

Lys-ing the Resistance: Targeting Lysosomes to Overcome Chemoresistance in Ovarian Cancer

Abstract Purpose of Review For decades, ovarian cancer (OC) therapy has mainly relied on a regimen of tumor resection followed by treatment with cisplatin and paclitaxel. While this treatment is usually effective initially, resistance to this regimen in OC is widespread and is often the cause of death in OC patients. In the attempt to find new molecular targets for the treatment of chemoresistant OC, understanding the precise mechanisms of chemoresistance remains a paramount task. This review examines the critical roles of the lysosome in the instigation of chemoresistance in OC and explores possible clinical applications for overcoming chemoresistance. Recent Findings Lysosomes contribute to chemoresistance through various mechanisms, including increased lysosomal biogenesis, resulting from the enhanced activity of transcription factor EB, a master regulator of the autophagy-lysosome pathway, which enhances cellular capacity for drug sequestration. Lysosomal exocytosis allows the cell to secrete chemotherapeutic agents from OC cells. Lysosomal autophagy pathways enable OC cells to selectively recycle cell components during chemotherapeutic stress. Finally, lysosomal signaling pathways disrupt various cell death mechanisms such as apoptosis, necroptosis, and ferroptosis, which allow cancer cells to evade death under chemotherapeutic stress. Summary Targeting lysosomal biogenesis, stage-specific autophagy modulation, and lysosome-dependent metabolic vulnerabilities are promising avenues for sensitization of chemoresistant OC cells.

PARP Inhibitors in the Neoadjuvant Setting; A Comprehensive Overview of the Rationale for their Use, Past and Ongoing Clinical Trials

Abstract Purposeof Review Poly (ADP-ribose) polymerases (PARPs) are enzymes essential for detecting and repairing DNA damage through poly-ADP-ribosylation. In cancer, cells with deficiencies in homologous recombination repair mechanisms often become more dependent on PARP-mediated repair mechanisms to effectively repair dsDNA breaks. As such, PARP inhibitors (PARPis) were introduced into clinical practice, serving as a key targeted therapy option through synthetic lethality in the treatment of cancers with homologous recombination repair deficiency (HRD). Though PARPis are currently approved in the adjuvant setting for several cancer types such as ovarian, breast, prostate and pancreatic cancer, their potential role in the neoadjuvant setting remains under investigation. This review outlines the rationale for using PARPi in the neoadjuvant setting and evaluates findings from early and ongoing clinical trials. Recent Findings Our analysis indicates that numerous studies have explored PARPi as a neoadjuvant treatment for HRD-related cancers. The majority of neoadjuvant PARPi trials have been performed in breast and ovarian cancer, while phase II/III evidence supporting efficacy in prostate and pancreatic cancers remains limited. Summary Studies are investigating PARPi in the neoadjuvant setting of HRD-related cancers. Future research should prioritize combination strategies with immune checkpoint inhibitors and expand outcome measures to include patient satisfaction and quality-of-life metrics.

Weight Management for Fertility-Preservation Therapy in Endometrial Cancer: Opportunities and Challenges

Obesity is increasingly recognized as a significant factor impacting the outcomes of fertility-preserving therapies for endometrial cancer (EC). This review explores the effects of glycolipid metabolism on EC and its relationship with body weight. We will examine how excess body weight influences the effectiveness of fertility-preserving treatments and discuss potential mechanisms for effective weight management. Additionally, the review highlights the importance of comprehensive weight management as an adjunct strategy to enhance the efficacy of fertility-preserving interventions, providing insights into how to integrate metabolic health into clinical treatment protocols. Weight management can modify the tumor microenvironment by depriving the tumor of nutrients, whereas exercise can enhance immunity, potentially leading to tumor cell death. In addition, progesterone therapy may impede the proliferation of EC cells. Comprehensive weight management can serve as an essential adjuvant treatment for patients undergoing fertility-preserving therapies for EC. In this review, we highlight that comprehensive weight management can serve as a crucial adjuvant treatment for patients undergoing fertility-preserving therapies for endometrial cancer. Targeting glycolipid metabolism and addressing adiposity can improve hormonal balance, reduce inflammation, and enhance fertility outcomes. Further research is necessary to establish specific protocols and evaluate the effectiveness of these strategies in clinical practice.

Uterine-Conserving Treatment Options for Atypical Endometrial Hyperplasia and Early Endometrial Cancer

This review aims to synthesize available literature on uterine-conserving treatment options for atypical endometrial hyperplasia and grade 1 endometrial carcinoma while highlighting remaining unanswered questions. The need for uterine-conserving treatment options for atypical endometrial hyperplasia and grade 1 endometrial carcinoma is growing with the increasing number of cases in younger patients or those who cannot undergo surgery. We reviewed the oncological and reproductive outcomes associated with endocrine therapies used for atypical endometrial hyperplasia and grade 1 endometrial carcinoma. The rising prevalence of delayed childbearing, obesity, and diabetes in reproductive-age individuals and of medical comorbidities associated with high surgical risk continues to amplify the demand for uterine-conserving therapies. Appropriate patient selection for such therapies is imperative to maximize likelihood of treatment response. The ideal candidates are patients with atypical endometrial hyperplasia or early-stage, low-grade endometrial cancer with no evidence of myometrial invasion or extrauterine disease. The most accepted conservative therapeutic approach is hormonal therapy with close surveillance, with or without eventual hysterectomy following childbearing or failure of treatment. Further prospective and randomized trials are needed to address optimal patient and treatment selection, as well as the use of molecular profiling for treatment individualization and prognostication.

Publisher

Springer Science and Business Media LLC

ISSN

1534-6269