Journal

Critical Reviews in Oncology/Hematology

Papers (86)

Efficacy and safety of PARP inhibitors in the treatment of advanced ovarian cancer: An updated systematic review and meta-analysis of randomized controlled trials

Poly-ADP-ribose polymerase (PARP) inhibitors have emerged as a novel class of therapeutics for ovarian cancer (OC); however, PARP inhibitors present a class effect adverse-event profile. A comprehensive literature review was performed for phase II or III randomized controlled trials (RCTs) published up to and including January 2020. We analyzed relevant clinical trials reporting the efficacy and toxicity profile of PARP inhibitors in patients with advanced OC. We estimated hazard ratios (HRs), incidences, risk ratios (RRs) and relative 95 % confidence intervals (95 % CI) for progression-free survival (PFS) and selected adverse events, using Stata 12.0 software package. The systematic review process yielded 10 eligible trials comprising 4,241 patients with advanced OC for survival analysis and 4553 patients for evaluation of toxicity profile. The pooled HR (PARP inhibitor vs control group) for PFS was 0.41 (95 % CI, 0.35-0.50) in overall patients, 0.51 (95 % CI, 0.40-0.64) in unselected setting, 0.32 (95 % CI, 0.26-0.39) in BRCA mutation setting, and 0.57 (95 % CI, 0.41-0.78) in wild-type setting. Patients treated with PARP inhibitors exhibited higher risks of all-grade and high-grade haematological toxicities, including anemia, leucopenia, neutropenia, thrombocytopenia (P < 0.05), and also presented higher risks of all-grade gastrointestinal side effects, including constipation, diarrhea, nausea, and vomiting as well as high-grade nausea and vomiting (P < 0.05). This study indicated that the use of PARP inhibitor provided substantial progression-free survival (PFS) benefits, irrespective of BRCA mutation status; however, treatment with PARP inhibitor was associated with increased risks of selected treatment-related adverse events.

Emerging trends and treatment strategies in ovarian cancer: A comprehensive review

Ovarian cancer (OC) is the eighth leading cause of cancer deaths in women globally, mainly originating from epithelial cells. It is further divided into type-I and type-II based on histology, molecular, clinical, and epidemiological characteristics. OC is commonly diagnosed in postmenopausal women, although this varies by ethnicity and genetics. Non-Hispanic white women have higher rates of OC, while African American women, despite lower incidence, are diagnosed at a younger median age. Family history and BReast CAncer gene 1&2 (BRCA1/BRCA2) mutations significantly correlate with a heightened risk of OC. Obesity, particularly from childhood, is associated with a higher risk of OC. Late menopause and smoking, are linked to a higher risk, especially for mucinous and possibly serous OC. Hormone-replacement-therapy, particularly with unopposed estrogen, also increases the risk of OC. Endometriosis raises the risk for specific subtypes like clear cell and endometrioid carcinoma. Women who have never given birth (null-parity) are at higher-risk for endometrioid and clear cell carcinoma. Surgical resection is crucial for reducing primary and local metastatic disease, involving inspection of the peritoneal cavity, cytology, lymph node removal, and biopsies. The success of surgery is limited by the visibility, extent, and tissue infiltration of the disease. The choice between neoadjuvant-chemotherapy and primary debulking surgery depends on patient health and tumor biology. Secondary cytoreductive surgery may be beneficial for platinum-sensitive recurrent OC. The use of PARP inhibitors and targeted therapies adds complexity to surgical decisions. Ongoing trials and new therapeutic strategies are expected to enhance the management and outcomes of OC.

Diagnostic and prognostic significance of circulating HPV cfDNA in cervical cancer: A systematic review and meta-analysis

Human papillomavirus circulating free DNA (HPV cfDNA) is an emerging biomarker with potential utility in the detection and treatment monitoring of cervical cancer. To conduct a systematic review and meta-analysis evaluating the diagnostic and prognostic performance of HPV cfDNA in cervical cancer. A comprehensive literature search was conducted in PubMed, CINAHL, Cochrane Library, Scopus, and Embase through April 2025. Eligible studies reported or allowed calculation of diagnostic performance of HPV cfDNA in HPV-positive cervical cancer patients and/or included serial HPV cfDNA testing during post-treatment follow-up. Meta-analyses were conducted using a random-effects model. Heterogeneity was assessed with the I² statistic. The review followed PRISMA guidelines, and study quality was assessed using QUADAS-2. Of 106 studies screened, 20 met the inclusion criteria. Eleven studies contributed to the diagnostic meta-analysis and six to the prognostic analysis. The pooled sensitivity and specificity of HPV cfDNA for cervical cancer detection were 0.47 (95 % CI, 0.43-0.52) and 0.96 (95 % CI, 0.92-0.98), respectively. Positive and negative likelihood ratios were 10.49 and 0.28, with a diagnostic odds ratio of 71.31. The area under the SROC curve was 0.9825, indicating excellent overall diagnostic performance. Prognostically, HPV cfDNA positivity at 3 months post-treatment was significantly associated with reduced progression-free survival (HR = 8.50; 95 % CI, 4.69-15.41; I² = 0 %). HPV cfDNA shows high specificity and strong prognostic value, supporting its clinical utility in cervical cancer detection and treatment surveillance.

Novel therapeutic strategies for targeting E6 and E7 oncoproteins in cervical cancer

Cervical cancer is the fourth most common cause of cancer-related mortality among women worldwide. The main aetiological factor for developing cervical cancer is the persistent infection of Human papillomavirus (HPV). The E6 and E7 oncoproteins produced by HPV mainly contribute to the carcinogenic process by inhibiting the function of tumour suppressor genes. The E6 protein causes degradation of p53 leading to impaired cellular stress response. In contrast, the E7 protein impairs the activity of retinoblastoma protein (pRb) resulting in continuous cell cycle propagation. Even though screening programmes and prophylactic vaccination have reduced the incidence of cervical cancer, the disease burden is still high, especially in low socioeconomic countries. Treatment of cervical cancer involves a multimodal strategy incorporating surgery, chemotherapy, and radiotherapy. Most of these management approaches use invasive techniques and are associated with adverse effects. Drug resistance is observed over time with chemotherapeutic agents. Hence there is a crucial need for developing novel targeted treatment strategies for cervical cancer. The E6 and E7 viral oncoproteins are continuously expressed in HPV infected cells making them ideal targets for developing therapies. Therapeutic DNA vaccines, gene therapy involving RNA interference technology, and CRISPR are currently under intensive study. These technologies represent a productive and promising approach for the future treatment of cervical cancer. Moreover, several new compounds demonstrate significant anti-cancer effects against cervical cancer. This review provides an updated account of therapeutic strategies currently under research targeting the E6 and E7 viral oncoproteins.

A new approach to the treatment of ovarian cancer: The application of CAR-T cell therapy

Ovarian cancer poses a significant threat to women's health, and the limitations of current treatments demand the exploration of new therapeutic solutions. Chimeric antigen receptor (CAR) T cell therapy, a novel form of immunotherapy, has demonstrated substantial efficacy in the treatment of hematological malignancies and holds considerable promise for ovarian cancer treatment. This paper provides a comprehensive review of the application of CAR-T cell therapy in ovarian cancer, with a detailed discussion of therapeutic targets such as mesothelin, MUC16, and FOLR1, along with associated clinical trials. Presently, the application of CAR-T cell therapy in ovarian cancer is confronted with challenges including immunosuppression within the tumor microenvironment (TME), tumor heterogeneity, target-related issues, toxic reactions, and limitations in cell efficacy. To address these challenges, strategies such as modulating immunosuppressive cells, employing dual-target strategies, optimizing target selection and CAR structure, enhancing cell performance, and utilizing combination therapies are proposed. Future research directions are likely to focus on the expansion of combination therapies, the application of nanotechnology, the advanced development of personalized medicine, and the exploration of immune cell diversification. Although CAR-T cell therapy remains in its nascent stages for the treatment of ovarian cancer, ongoing research and technological advancements are anticipated to yield significant breakthroughs, potentially offering more effective treatment options for patients with ovarian cancer.

Efficacy and safety of targeted therapy and immunotherapy in advanced vulvar squamous cell carcinoma: A scoping review

Vulvar squamous cell carcinoma (VSCC) is a rare gynecological tumor with limited treatment options for advanced stages. Current chemotherapy, adapted from cervical cancer protocols, often results in poor outcomes. This scoping review evaluates the efficacy and safety of immunotherapy and targeted therapies in advanced VSCC. After extensive assessment, examination, and curation of relevant literature data, eight trials focused on immunotherapy or targeted therapy for advanced, recurrent, or metastatic VSCCs were identified and selected. The findings have been compiled and synthesized into a narrative overview, adhering to the PRISMA-ScR guidelines. The study analyzed four unpublished and four published trials, evaluating the efficacy and safety of immunotherapy or targeted therapy for VSCCs. Pembrolizumab was assessed in the KEYNOTE-028 and KEYNOTE-158 trials, showing objective response rates (ORRs) of 6 % and 10.9 %, respectively, and median overall survival (OS) between 3.8 and 6.2 months. CheckMate 358 reported a 20 % ORR for nivolumab. Combination strategies (ipilimumab plus nivolumab and pembrolizumab plus vorinostat) demonstrated efficacy with median OS of 7.6 and 17.5 months, respectively. Toripalimab showed an ORR of 33.3 %. Safety profiles were generally manageable, with common adverse events like fatigue and gastrointestinal disorders. Serious adverse events included grade 5 immune-related hepatitis and chronic kidney disease. Immunotherapy may be considered an option for VSCCs in the second-line setting. Despite the limited research on targeted therapies for VSCCs, combination approaches with immunotherapy demonstrate promising potential. Prioritizing the identification of biomarkers that predict responses to immune checkpoint inhibitors is essential.

Polycomb Repressor Complex 1 (PRC1) in ovarian cancer: A scoping literature review

High grade serous carcinoma (HGSC) is the most common and the deadliest histologic subtype of epithelial ovarian cancer. HGSC is a therapeutic challenge, as it recurs in 80 % of patients diagnosed, often as chemoresistant disease. The mechanism of this chemoresistance is not fully elucidated, but it is partly attributed to the ability of HGSC to maintain a stem-like phenotype that enables development of resistance to current therapies. Polycomb Repressor Complexes 1 and 2 (PRC1/2) have been implicated in the maintenance of the stem cell compartment through silencing tumor suppressor genes and regulating stem cells. These complexes are comprised of multiple polycomb group (PcG) proteins that play a role in normal development, and when deregulated contribute to the development of cancer [2]. Proteins included in PRC1 include B lymphoma mouse Moloney leukemia virus insertion region (BMI1), RING1, and chromobox (CBX) proteins. We aimed to review each of the protein components of PRC1 and their mechanistic relationships to promoting chemoresistant recurrences and propagation of ovarian cancer. Where possible, we reviewed therapeutic investigations of these proteins. We utilized a scoping literature review through Covidence to identify 42 articles meeting criteria for inclusion. The authors identified four relevant articles and the Yale MeSH Analysis Grid Generator was used to establish additional keywords and heading terms. A medical librarian used these terms and articles to draft an initial search strategy within each of the following databases: MEDLINE, Embase, Cochrane Library, and Web of Science Core Collection, yielding 439 articles based on title and abstract. Abstracts were independently reviewed by the authors, identifying 77 articles for full text review, of which 35 were ultimately excluded, leaving 42 articles for full review. Our review identified the currently known mechanisms of the subunits of PRC1 that contribute to HGSC development, recurrence, and chemoresistance. By compiling a comprehensive review of available scientific knowledge, we support and direct further investigation into PRC1 that can affect meaningful advances in the treatment of HGSC.

Stereotactic body radiotherapy as an alternative to brachytherapy in cervical cancer (SCORE): A systematic review and meta-analysis

This study evaluates the efficacy and safety of Stereotactic Body Radiotherapy (SBRT) as an alternative to brachytherapy (BCT) for patients with locally advanced cervical cancer (CC) who face barriers such as resource constraints, anatomical challenges, or comorbidities precluding standard treatment. A systematic review and meta-analysis, registered with PROSPERO and adhered to PRISMA standards, was conducted to evaluate SBRT in place of BCT for CC treatment. Eligible studies were systematically sourced from PubMed, Embase, and Cochrane databases. A random-effects model was applied to address study heterogeneity. The analysis focused on outcomes including local control (LC), late gastrointestinal (GI) and genitourinary (GU) toxicity, and overall survival (OS) rates with meta-regression exploring correlations between treatment variables and outcomes. The review analyzed thirteen studies from 2012 to 2024 across diverse regions, with participant ages ranging from 52 to 80 years and sample sizes from 6 to 55 patients. The combined LC rate was 94 % (95 % CI: 91-97 %), and the OS rate was 56 % (95 % CI: 48-63 %), showing no heterogeneity. Late grade ≥ 3 GI and GU toxicity were both 2 %. Meta-regression analysis found no significant associations between treatment parameters and the analyzed outcomes. SBRT is a viable boost therapy for CC patients unable to undergo BCT. It demonstrates strong LC and low levels of severe late toxicity. Further prospective randomized trials are necessary to refine SBRT protocols and confirm long-term outcomes.

The impact of PARP inhibitors in the whole scenario of ovarian cancer management: A systematic review and network meta-analysis

Carboplatin is still the cornerstone of the first-line treatment in advanced Epithelial Ovarian Cancer (aEOC) management and the clinical response to platinum-derived agents remains the major predictor of long-term outcomes. We aimed to identify the best treatment of the aEOC in terms of efficacy and safety, considering all treatment phases. A systematic literature search has been done to compare all treatments in aEOC population. Randomized trials with available survival and safety data published in the 2011-2022 timeframe were enclosed. Only trials reporting the BRCA or HRD (Homologous Recombination Deficiency) status were considered. A ranking of treatment schedules on the progression-free survival (PFS) endpoint was performed. The random-effect model was used to elaborate and extract data. The Network Meta-Analysis (NMA) by Bayesian model was performed by STATA v17. Data on PFS were extracted in terms of Hazard ratio with relative confidence intervals. This NMA involved 18 trials for a total of 9105 patients. Within 12 treatment groups, we performed 3 different sensitivity analyses including "all comers" Intention to Treat (ITT) population, BRCA-mutated (BRCAm), and HRD subgroups, respectively. Considering the SUCRA-reported cumulative PFS probabilities, we showed that in the ITT population, the inferred best treatment was niraparib plus bevacizumab with a SUCRA of 96.7. In the BRCAm subgroup, the best SUCRA was for olaparib plus chemotherapy (96,9). The HRD population showed an inferred best treatment for niraparib plus bevacizumab (SUCRA 98,4). Moreover, we reported a cumulative summary of PARPi toxicity, in which different 3-4 grade toxicity profiles were observed, despite the PARPi "class effect" in terms of efficacy. Considering all aEOC subgroups, the best therapeutical option was identified as PARPi plus chemotherapy and/or antiangiogenetic agents, suggesting the relevance of combinatory approaches based on molecular profile. This work underlines the potential value of "chemo-free" regimens to prolong the platinum-free interval (PFI).

Artificial intelligence applications in ovarian cancer detection: A systematic literature review of deep learning approaches and clinical translation challenges

This systematic literature review examines artificial intelligence applications in ovarian cancer detection through analysis of 61 studies published between 2020 and 2025. The investigation reveals advancing methodological sophistication alongside persistent limitations constraining clinical translation. Convolutional neural network architectures dominate current research, with ResNet variants achieving accuracy rates between 92 % and 99.7 %. Vision transformer integration demonstrates competitive performance while providing attention-based interpretability mechanisms. Ensemble methodologies produce superior diagnostic accuracy, reaching 98.96 % through multi-model integration strategies. Dataset heterogeneity presents barriers to model generalizability, with sample sizes ranging from hundreds to thousands of images and private institutional datasets limiting external validation opportunities. Hyperparameter optimization receives minimal attention across reviewed studies, with twelve investigations implementing systematic parameter tuning. Explainable AI implementation occurs in seven studies despite growing regulatory requirements for transparent medical AI systems. Object detection applications demonstrate limited adoption compared to classification approaches, with U-Net variants comprising the primary segmentation methodology. Bibliometric analysis indicates increasing research activity, with publication counts rising from 5 papers in 2020-2021, 34 papers in 2023-2024. Future research directions should prioritize standardization initiatives for data collection and evaluation metrics, prospective clinical trials for validation, and regulatory pathway development for medical AI system approval.

Non-coding RNAs and liquid biopsies: Emerging biomarkers for cervical cancer

Cervical cancer (CC) is the fourth most common malignancy among women worldwide, highlighting the urgent need for improved predictive, diagnostic and prognostic biomarkers to enhance disease management and patient outcomes. Non-coding RNAs (ncRNAs), including long non-coding RNAs (lncRNAs), circular RNAs (circRNAs) and microRNAs (miRNAs), perform various functions in transcriptional, translational and post-translational regulation. Aberrant expression of ncRNAs in CC has been closely associated with disease initiation and progression, underscoring their potential as key regulators of cervical tumorigenesis. Several lncRNAs, such as HOTAIR and PVT1, contribute to cervical tumorigenesis by promoting cell proliferation, migration and invasion. Likewise, circRNAs, such as circ_0018289, act as miRNA sponges, leading to the dysregulation of key target genes. Moreover, specific miRNAs, such as miR-20a and miR-21, promote CC progression (oncogenic miRNAs), whereas others, including miR-214 and miR-218, exhibit a tumor suppressor role. Importantly, many ncRNAs are detectable in body fluids, representing stable and minimally invasive biomarkers suitable for liquid biopsy. Thus, in this comprehensive narrative review, we map the range of candidate ncRNAs reported in the literature and discuss their predictive, diagnostic, prognostic and therapeutic value, including their potential as circulating biomarkers in CC. We also highlight, as a future perspective, how integrated profiling approaches could guide research and support the development of non-invasive strategies for diagnosis, prognostic assessment, and therapy monitoring in CC.

Meta-analysis of clinical trial on the comparative efficacy and safety profiles of immunotherapeutic strategies in cervical cancer

Over the years, there have been significant advancements in the field of cervical cancer research in developing new treatment approaches. One of the significant breakthroughs in cancer treatment is the emergence of immunotherapy that can be used as a standalone treatment or in combination with other cancer therapies. Immunotherapy has shown promising results in clinical trials and has become a viable strategy for treating cancer and improves the quality of life for cancer patients and overall survival rate. Here in the systematic review we are focusing towards the effectiveness and safety of immunotherapy in cervical cancer or HPV infections CIN with clinical trial data. The data extracted had from those studies were analyzed through certain statistical methods and subgroup analysis for validating and concluding our objective. PubMed and Science direct database were used for searching the studies with applied screening and filtering and 49 main reports were included for the studies. The immunotherapies subdivided to immune checkpoint inhibitors, cellular therapy and Vaccine were separately analysed through meta-analysis for the conclusion. The Pembrolizumab (immune checkpoint inhibitor), T cell therapy and Bivalent (Ecoli expressed) vaccine were analysed to be higher effective. Thus for future exploration on immunotherapy in cervical cancer, it was described in our studies of a combination of Ecoli rec HPV bivalent vaccine followed by Pembrolizumab or T cell therapy thus improving the immune mediated action against the cancer. Apart from that, a hypothetical model of multiepitope production on ecoli for vaccine generation has also been explained.

Epigenetic mechanisms of PARP inhibitor resistance in ovarian cancer: A systematic review with bioinformatic analysis of clinically actionable genes

PARP inhibitors (PARPi) improve ovarian cancer (OC) outcomes, but resistance remains a major challenge without reliable prognostic biomarkers. This study identified epigenetic hallmarks of PARPi resistance by integrating 27 studies (22 preclinical, 5 clinical) from the past 15 years, and validating candidate genes using web-based bioinformatics tools and public microarray/RNA-seq datasets from non-relapsed, primary OC tissues. We hypothesised that early aberrant expression of these epigenetically altered, PARPi resistance-related genes in tumours may be linked to disease progression (PFS) and could serve as early biomarkers to be associated with PARPi resistance during first-line treatment. We confirmed epigenetic involvement in PARPi resistance across 36 genes linked to epigenetic modifications. Of these, 10 genes (n = 614-1435)-including RNASEH2B (HR=1.41), VHL (HR=1.26), ATM (HR=1.22), XRCC1 (HR=1.20), NRP1 (HR=1.16), KAT2B (HR=1.16), EZH2 (HR=1.15), CREBBP (HR=1.14), FZD10 (HR=0.87), and CARM1 (HR=0.86)-showed significant prognostic value for PFS (all: p < 0.05). This 10-gene signature remained collectively significant (HR 1.27, p = 0.014). RNA-seq validation showed differential expression of these genes, with highest fold-change overexpression in tumours for FZD10 (4.20), EZH2 (3.56), and CARM1 (1.61), and lowest in ATM (0.22), KAT2B (0.33), and NRP1 (0.44). GO and KEGG analyses revealed these genes are enriched in key resistance pathways, including impaired DNA repair, reduced replication stress, immune evasion, and stemness maintenance. This review with bioinformatic validation identified a 10-gene epigenetic signature associated with PARPi resistance and disease progression. These clinically actionable genes, aberrantly expressed before treatment, may serve as early biomarkers for risk stratification. Further validation in PARPi-sensitive and -resistant ovarian cancer cohorts is needed.

Cyclin E1 as a driver of oncogenesis; high grade serous ovarian cancer as an exemplar

Cyclin E1 is a critical mediator of cell cycle dynamics, controlling G1/S phase transition in complex with CDK2. Overexpression of cyclin E1 can lead to replication stress, DNA damage, and heightened genomic instability. This is associated with oncogenesis, and is frequently observed pan-cancer; but is particularly common in high grade serous ovarian cancer (HGSOC). HGSOC exhibits a genomic landscape dominated by structural variation and instability, with high cyclin E1 expression in up to 58 % and CCNE1 amplification in up to 30 % of cases. HGSOC therefore represents an exemplar setting for investigating cyclin E dysregulation in cancer. HGSOC patients with high tumour expression of cyclin E1, in combination with copy number amplification, experience particularly poor survival. Agents targeting CDK2, WEE1, and PYMKT1, and other cell cycle associated targets have shown strong preclinical activity in models of high cyclin E expression and CCNE1 amplification. Recent clinical trials have explored the efficacy and tolerability of these agents, particularly in biomarker selected cohorts. The WEE1 inhibitor adavosertib and the CDK2 inhibitor INCB123667 achieved response rates of 53 % and 33 % respectively in platinum-resistant ovarian cancer patients whose tumours overexpressed cyclin E1. Targeting of cyclin E dysregulation via a synthetic lethality approach is therefore a key area of focus for improving treatment strategies in HGSOC and other cancers with high unmet clinical need. In this review we discuss the functions of cyclin E1, mechanisms and consequences of dysregulation, and strategies for therapeutic exploitation of cyclin E1 dysregulated tumours, combining fundamental biology with clinical perspectives.

Elucidating the mechanistic role of ovarian cancer biomarkers: Lessons learnt from affinity-proteomics

A salient feature of ovarian carcinoma (OC) is its unique tumor microenvironment (TME) enabling early onset of transcoelomic dissemination via the malignant ascites, with the omentum as a preferred site of tumor metastasis. These traits together with typical late diagnosis and high incidence of chemoresistance render OC the most lethal gynecological malignancy. Deciphering the mechanisms allowing tumor progression and metastasis represents an important aim in OC research. Also, there is a high medical need to identify biomarkers that could serve as diagnostic tools for detection of early and recurrent disease. Due to the easy access, one overarching goal is to define clinically relevant blood biomarkers reflecting the pro-tumorigenic features of the TME. For its part, the ascites better reflects the tumor secretome by holding large amounts of stromal, immune and tumor cells, as well as soluble secreted factors and extracellular vesicles, which justifies a more detailed analysis of the ascites proteome. Despite previous efforts based on mass-spectrometry analyses, biomarkers derived from these studies have so far not been integrated into clinical practice. Novel approaches applying affinity-based proteomics have more recently revolutionized biomarker research by providing systematic high-throughput analysis and highly sensitive detection. In the following, we discuss key findings in OC research applying these approaches to unravel intercellular crosstalk within the TME while identifying novel biomarkers. Understanding the origin, function and clinical impact of putative biomarkers is crucial, not only to depict the intercellular communication in the OC TME, but also to develop targeted therapies and improved diagnostic tools.

Efficacy and safety of mirvetuximab soravtansine in recurrent ovarian cancer with FRa positive expression: A systematic review and meta-analysis

To evaluate the efficacy and safety of mirvetuximab soravtansine in treating recurrent ovarian cancer with folate receptor alpha (FRa) expression. A comprehensive search was conducted on online databases, including PubMed, Cochrane Library, and EMBASE, to identify relevant literature about the efficacy and safety of mirvetuximab soravtansine in recurrent ovarian cancer with FRa-positive expression. The keywords were the following: recurrent ovarian cancer, mirvetuximab soravtansine, FRa, and antibody-drug conjugate. Furthermore, studies that satisfied the necessary qualifications were carefully evaluated for further meta-analysis. This meta-analysis involved the examination of seven trials with a total of 631 patients. According to the pooled data, the objective response rate (ORR) was 36% (95%CI: 27%-45%). Similarly, the disease control rate (DCR) was 88% (95% CI: 84-91%). Furthermore, the median progression-free survival (PFS) was determined to be 6.1 months (95% CI: 4.27-7.47). The overall response rate and PFS for platinum-resistant ovarian cancer were found to be 29% (95% CI: 25-32%) and 6.26 months (95% CI: 4.67-7.85), respectively. The most often observed adverse events (AEs) in patients with recurrent ovarian cancer (OC) receiving mirvetuximab soravtansine were blurred vision (all grades: 45%, Grade III: 2%), nausea (all grades: 42%, Grade III: 1%), and diarrhea (all grades: 42%, Grade III: 2%). These AEs were specifically associated with the safety profile of mirvetuximab soravtansine in this patient population. The efficacy of mirvetuximab soravtansine in treating recurrent ovarian cancer with FRa-positive expression is satisfactory, and the safety is tolerable.

Guidelines for the prevention and diagnosis of vaginal and vulvar cancers: A systematic review

Variation in care is known to exist for those diagnosed with vaginal and vulvar cancers. Guidelines are integral to providing a consistent, quality standard of care. To provide an evidence-based background for vaginal and vulvar cancers, a systematic review was conducted to identify available guidelines relevant to prevention and early detection; presentation, initial investigations and referral; and diagnosis. We conducted a systematic search of databases (CINAHL, Cochrane Library, Embase, PubMed, Scopus, Web of Science) and targeted websites (n = 23) to identify guidelines published in English within the past 10 years (from 2013 onwards) relevant to either vaginal or vulvar cancers and pertaining to the first three steps of the cancer care continuum. We screened the guidelines, extracted recommendations and statements, and assessed their quality using standard forms. A total of 45 guidelines were included in this review (33 evidence-based, 12 consensus-based). Guidelines were developed by a range of professional organisations and across countries. Guidelines covered multiple topics including prevention and early detection (n = 37; 82 %), presentation, initial investigations and referral (n = 24; 53 %), and diagnosis (n = 23; 51 %). Common and consistent guideline recommendations and statements were identified. Example recommendation topics included risk factors, management of precursor conditions, signs and symptoms, initial tests and referral, and diagnostic workup. Few timeframes were specified. This review has collated relevant and current guidelines available to health professionals from prevention to diagnosis of vaginal and vulvar cancers. Our synthesis demonstrates consistency but a lack of specificity in the available recommendations/statements.

The role of HER2 pathway in vulvar paget’s disease

Vulvar Paget's disease (VPD) is an orphan neoaplasm accounting 1-2 % of vulvar malignancies. Advanced VPD is currently laking effective treatment options. Since HER2 is overexpressed in 30-40 % of VPD cases, this scoping review explores its prognostic significance and the effectiveness of HER2-targeted therapies. A literature review was conducted using the PubMed and Scopus databases. The search was restricted to articles in English and human studies, incorporating the terms "extramammary Paget disease", "vulva", "HER2", "anti-Her2 therapy" and "trastuzumab". Two reviewers screened abstracts and full-text article while recording relevant data. Seventeen small retrospective studies on HER2 expression in VPD were evaluated. All studies assessed HER2 using IHC, while only 9 studies also employed FISH to detect gene amplification. A total of 270 patients are reported, of which 121 patients (45 %) had a 3 + or 2 + score. HER2/neu amplification was reported in 40 % of invasive tumours vs 17.5 % of non-invasive tumor. Eleven case-reports and series suggested a possible benefit of HER2-targeted therapies. To be mentioned, 4 articles reported trastuzumab combined with chemotherapy as the first-line treatment option, while trastuzumab monotherapy resulted in excellent objective response in two case reports. Although HER2 expression in VPD represents a potential therapeutic target, current evidence is largely derived from case reports and lacks substantial clinical trial data. There is an urgent need for targeted clinical trials and expanded genomic profiling to enhance understanding of the underlying molecular mechanisms and optimize treatment strategies.

Stereotactic body radiotherapy boost as an alternative to brachytherapy for cervical cancer: A scoping review

This scoping review aims to evaluate the evidence for stereotactic body radiotherapy (SBRT) boost as a potential alternative for brachytherapy (BCT) in treating cervical cancer. A comprehensive literature search was conducted across multiple databases. Studies investigating SBRT boost in cervical cancer patients who were either contraindicated for or refused BCT were included. The review examined SBRT efficacy and safety. Sixteen studies were included, encompassing prospective (n = 4) and retrospective cohort studies (n = 8), as well as phase I and II trials (n = 4). The most common SBRT boost dose was 25 Gray(Gy)/5 fractions (ranging from 18 to 40 Gy/3-5 fractions). Local control rates at 1-year, 3-year, and 5-year ranged from 86 % to 100 %, 78-92 %, and 81-92 %, respectively. Overall survival (OS) rates at 1-year, 3-year, and 5-year rates ranged from 49 % to 95 %, 50-77 %, and 50-69 %, respectively. Two studies reported a pathological complete response rate of 93 % and 94 % three months after the SBRT boost. Most studies reported low rates of late grade 3 or higher genitourinary (0-14 %) and gastrointestinal (0-26 %) toxicities. The overall incidence of rectovaginal fistulas ranged from 0 % to 13 %. This scoping review suggests SBRT boost as a promising alternative to selected cervical cancer patients who cannot receive BCT. The results indicate a high local control with acceptable toxicity profiles. However, further research is needed to define optimal SBRT boost parameters, identify patient selection criteria, and address knowledge gaps regarding long-term outcomes and cost-effectiveness.

Mechanistic role of HPV-associated early proteins in cervical cancer: Molecular pathways and targeted therapeutic strategies

Cervical cancer (CC), one of the major causes of death of women throughout the world is primarily caused due to Human Papilloma Virus (HPV) 16 and 18. The early region (E) oncoproteins of HPV are associated with the etiopathogenesis and contribute to the progression of cancer. The present article comprehensively discussed the structural organization and biological functions of all E proteins of HPV and their contribution to progression of CC with an intent to decipher the pathological hallmarks and their relationship. Additionally, the role of E proteins in reference to therapeutics will also be presented. A systematic search has been carried out for articles published in PubMed database by using combinations of different keywords with Boolean operators (AND, OR, NOT) including cervical cancer, HPV, E proteins, and signaling. From the analysis of literature review, its apparent that E proteins are the major contributor to disease progression. E1, E2, and E4 forms are mainly associated with viral integration, replication, and transcription whereas E6 and E7 act as an oncoprotein and are associated with the progression of cancer. E5 regulates cell proliferation, apoptosis, and facilitates the activity of E6 and E7. Additionally, E proteins were observed associated with numerous cell signaling pathways including PI3K/AKT, Wnt, Notch and reasonably contribute to the initiation of malignancy, cell proliferation, metastasis, and drug resistance. Knowing the role and interplay of each protein in initiation to progression of CC, their therapeutic significance has been elucidated. The present study observations demonstrate that E6 and E7 are the major cause of HPV-mediated CC progression. E1, E2, and E5 also act as a backbone for E6 and E7 and most of the current approaches have targeted E6 and E7 mediated action only. The present review illustrates the structural organization as well as function and regulation of all early proteins of HPV and their association with several cellular signaling pathways. The observations provide clue on the regulatory aspect of these proteins in initiation to progression and reasonably represent that targeting these proteins could be a novel therapeutic strategy for CC. In particular, its seemingly appears that inhibition of the activity of E6 and E7 oncoproteins may be a better selective target to delay the progression of CC. The review reaffirms the role of E proteins and encourages future studies on developing diagnostics, and most importantly therapeutics strategies targeting E6 and E7 oncoproteins to tackle CC related morbidity and mortality.

Publisher

Elsevier BV

ISSN

1040-8428