Publications by authors named "Gorp T"

Objective: Interest in long-term outcomes of radical hysterectomy for cervical cancer has increased, especially after the LACC trial findings, which showed worse outcomes for minimally invasive surgery. However, limited information is available on 10-year oncological outcomes, particularly, recurrence and survival. The primary objective of this study was to analyze the 10-year oncological outcomes of patients with International Federation of Gynecology and Obstetrics 2009 stage IB1 cervical cancer treated with radical hysterectomy performed via minimally invasive or open approaches.

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Purpose: Tumor Treating Fields (TTFields) are electric fields that disrupt processes critical for cancer cell viability and tumor progression. The pivotal, phase 3 ENGOT-ov50/GOG-3029/INNOVATE-3 study evaluated efficacy and safety of TTFields therapy with paclitaxel (PTX) vs PTX in patients with platinum-resistant ovarian cancer (PROC).

Patients And Methods: Adult patients with PROC with ≤ 5 total prior lines of therapy (LOT), including ≤ 2 prior LOT for platinum-resistant disease, and ECOG PS of 0-1 were randomized 1:1 to receive TTFields (200 kHz; ≥ 18 h/day) + PTX (80 mg/m weekly) or PTX.

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Background: Cervical cancer (CC) is the fourth most common cancer diagnosis in women worldwide. Infection with high-risk human papillomavirus (HPV) is a critical but not determinative condition for CC development, as several co-factors modulate the progression of HPV-associated cervical lesions. Interleukin-8 (IL-8) and Interleukin-16 (IL-16) are chemokine-like interleukins involved in the pathogenesis of various cancers.

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Rare, germline loss-of-function variants in a handful of DNA repair genes are associated with epithelial ovarian cancer. The aim of this study was to evaluate the role of rare, coding, loss-of-function variants across the genome in epithelial ovarian cancer. We carried out a gene-by-gene burden test with various histotypes using data from 2573 non-mucinous cases and 13,923 controls.

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Long COVID (LC), manifests in 10-30% of non-hospitalized individuals post-SARS-CoV-2 infection leading to significant morbidity. The predictive role of gut microbiome composition during acute infection in the development of LC is not well understood, partly due to the heterogeneous nature of disease. We conducted a longitudinal study of 799 outpatients tested for SARS-CoV-2 (380 positive, 419 negative) and found that individuals who later developed LC harbored distinct gut microbiome compositions during acute infection, compared with both SARS-CoV-2-positive individuals who did not develop LC and negative controls with similar symptomatology.

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Background: Poly (ADP ribose) polymerase inhibitors (PARPis) are a treatment option for patients with advanced high-grade serous or endometrioid ovarian carcinoma (OC). Recent guidelines have clarified how homologous recombination deficiency (HRD) may influence treatment decision-making in this setting. As a result, numerous companion diagnostic assays (CDx) have been developed to identify HRD.

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Findings from clinical trials have led to advancement of care for patients with gynecologic malignancies. However, restrictive inclusion of patients into trials has been widely criticized for inadequate representation of the real-world population. Ideally, patients enrolled in clinical trials should represent a broader population to enhance external validity and facilitate translation of outcomes across all relevant groups.

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Objective: Mirvetuximab soravtansine-gynx (MIRV) is a novel antibody-drug conjugate targeting folate receptor alpha (FRα), which is overexpressed in epithelial ovarian cancer (EOC), with limited expression on normal tissues. This integrated safety summary sought to characterize the safety profile of MIRV monotherapy in participants with FRα-expressing recurrent EOC.

Methods: Safety data were retrospectively analyzed from 4 clinical studies (phase 1 trial [NCT01609556], phase 3 FORWARD I [NCT02631876], phase 2 SORAYA [NCT04296890], phase 3 MIRASOL [NCT04209855]) that evaluated participants with FRα-expressing recurrent EOC who received ≥1 dose of MIRV 6 mg/kg adjusted ideal body weight every 3 weeks.

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Article Synopsis
  • Maintenance therapies like PARP inhibitors and bevacizumab have improved outcomes for advanced ovarian cancer patients, prompting a study to explore treatment variability across Europe.
  • A Delphi study was conducted with experts to understand maintenance treatment strategies and gauge consensus on best practices.
  • Key factors influencing treatment choices include tumor mutation status and perceived risk of disease progression, with high-risk cases defined by advanced FIGO stages or residual disease after initial treatment.
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  • Mismatch repair-deficient (dMMR) endometrial cancer is associated with poor outcomes and limited treatment options, particularly for high-risk patients after surgery.
  • In a phase III clinical trial, patients with dMMR tumors were treated with pembrolizumab plus chemotherapy, showing improved disease-free survival (DFS) rates compared to those who received placebo.
  • The interim analysis revealed a significant DFS benefit for pembrolizumab, with a two-year DFS rate of 92.4% versus 80.2% for the placebo group, indicating its potential effectiveness in high-risk dMMR endometrial cancer.
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Single nucleotide polymorphisms (SNPs) of the IL-16 gene have been reported to influence the risk of several cancers, but their role in ovarian cancer (OC) has not been studied. Using the restriction fragment length polymorphism (PCR-RFLP) method, we examined four IL-16 SNPs: rs11556218 (T > G), rs4778889 (T > C), rs4072111 (C > T), and rs1131445 (T > C) in blood samples from 413 women of Central European descent, including 200 OC patients and 213 healthy controls. Among the patients, 62% were postmenopausal, 84.

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Purpose: To evaluate atezolizumab combined with platinum-based chemotherapy (CT) followed by maintenance niraparib for late-relapsing recurrent ovarian cancer.

Methods: The multicenter placebo-controlled double-blind randomized phase III ENGOT-OV41/GEICO 69-O/ANITA trial (ClinicalTrials.gov identifier: NCT03598270) enrolled patients with measurable high-grade serous, endometrioid, or undifferentiated recurrent ovarian cancer who had received one or two previous CT lines (most recent including platinum) and had a treatment-free interval since last platinum (TFIp) of >6 months.

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Background: Pembrolizumab plus chemotherapy provides clinically meaningful benefit as first-line therapy for advanced (locoregional extension and residual disease after surgery)/metastatic/recurrent mismatch repair-proficient (pMMR) and mismatch repair-deficient (dMMR) endometrial cancer, with greater magnitude of benefit in the dMMR phenotype. We evaluated the addition of pembrolizumab to adjuvant chemotherapy (with/without radiation therapy) among patients with newly diagnosed, high-risk endometrial cancer without any residual macroscopic disease following curative-intent surgery.

Methods: We included patients with histologically confirmed high-risk [International Federation of Gynecology and Obstetrics (FIGO) stage I/II of non-endometrioid histology or endometrioid histology with p53/TP53 abnormality, or stage III/IVA of any histology] endometrial cancer following surgery with curative intent and no evidence of disease postoperatively, with no prior radiotherapy or systemic therapy.

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Article Synopsis
  • - Ovarian cancer is a major cause of death among gynecological cancers, and platinum-based chemotherapy is the primary treatment method, along with maintenance strategies to extend chemotherapy intervals.
  • - Current maintenance treatments include bevacizumab and poly ADP-ribose polymerase inhibitors, but these can only be used once during the disease's progression, leaving a gap in treatment for patients experiencing relapses.
  • - A new international Phase II trial is exploring a combination of a therapeutic cancer vaccine (OSE2101) and anti-PD1 (pembrolizumab) as a maintenance therapy for patients with platinum-sensitive recurrences, regardless of prior treatments.
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Article Synopsis
  • Platinum-sensitive ovarian cancer (PSOC) is commonly treated with platinum-based chemotherapy plus bevacizumab, but patients often face disease progression within a year, indicating a need for new treatment strategies.
  • Mirvetuximab soravtansine-gynx (MIRV), an antibody-drug conjugate targeting folate receptor alpha, has shown promising results when used with bevacizumab, particularly in patients with high levels of FRα.
  • The ongoing Phase III GLORIOSA trial aims to compare the effectiveness of MIRV plus bevacizumab against bevacizumab alone for patients with FRα-high PSOC after responding to previous treatment.
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Objective: To report the outcome of SLN staging in the SENTIX international prospective trial of SLN biopsy in patients with cervical cancer with an intensive ultrastaging protocol and central quality control and to evaluate how the intensity of pathological assessment correlates with metastatic detection rate in SLNs.

Methods: Eligible were patients with stages T1a1/LVSI+ to T1b2 (<4 cm, ≤2 cm for fertility sparing), common tumor types, no suspicious lymph nodes on imaging, and bilateral SLN detection. SLNs were examined intraoperatively and processed by an intensive protocol for ultrastaging (paraffin blocks sectioned completely in 150-μm intervals/levels).

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Article Synopsis
  • The SORAYA trial investigated the efficacy of mirvetuximab soravtansine-gynx in patients with FRα-high platinum-resistant ovarian cancer, achieving a primary endpoint with an objective response rate of 32.4%.
  • With a median overall survival of 15.0 months, those with fewer previous therapies had better outcomes (18.7 months for one to two lines vs. 11.6 months for three lines).
  • Response rates varied by treatment history, with a higher objective response rate noted in patients receiving mirvetuximab as their first treatment in the platinum-resistant setting (34.8%) compared to those who had prior therapies (28.2%).
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Objective: To report long-term efficacy and safety of selinexor maintenance therapy in adults with TP53 wild-type (TP53wt) stage IV or recurrent endometrial cancer (EC) who achieved partial remission (PR) or complete remission (CR) following chemotherapy.

Methods: Analysis of the prespecified, exploratory subgroup of patients with TP53wt EC from the phase 3 SIENDO study was performed. Progression-free survival (PFS) benefit in patients with TP53wt EC and across other patient subgroups were exploratory endpoints.

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  • Retifanlimab, a monoclonal antibody targeting programmed death 1, is being tested for safety and effectiveness in patients with recurrent microsatellite instability-high/mismatch repair deficient endometrial cancer.
  • In a study involving 76 patients, half experienced significant side effects, with anemia and fatigue being the most common, but many also achieved positive treatment responses.
  • The results indicate that retifanlimab is generally well tolerated and shows promising anti-tumor activity, with some patients having a progression-free survival of over a year.
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We analyzed variations in the epidermal growth factor receptor (EGFR) gene and 5'-upstream region to identify potential molecular predictors of treatment response in primary epithelial ovarian cancer. Tumor tissues collected during debulking surgery from the prospective multicenter OVCAD study were investigated. Copy number variations in the human endogenous retrovirus sequence human endogenous retrovirus K9 (HERVK9) and EGFR Exons 7 and 9, as well as repeat length and loss of heterozygosity of polymorphic CA-SSR I and relative EGFR mRNA expression were determined quantitatively.

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Rare, germline loss-of-function variants in a handful of genes that encode DNA repair proteins have been shown to be associated with epithelial ovarian cancer with a stronger association for the high-grade serous hiostotype. The aim of this study was to collate exome sequencing data from multiple epithelial ovarian cancer case cohorts and controls in order to systematically evaluate the role of coding, loss-of-function variants across the genome in epithelial ovarian cancer risk. We assembled exome data for a total of 2,573 non-mucinous cases (1,876 high-grade serous and 697 non-high grade serous) and 13,925 controls.

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Background: Patients with advanced/recurrent endometrial cancer have a poor prognosis and limited treatment options. Biomarkers such as tumor protein 53 () in endometrial cancer can integrate novel strategies for improved and individualized treatment that could impact patient outcomes. In an exploratory analysis of the phase III ENGOT-EN5/GOG-3055/SIENDO study of selinexor maintenance monotherapy 80 mg in advanced/recurrent endometrial cancer, a pre-specified subgroup of patients with wild type (wt) endometrial cancer showed preliminary activity at long-term follow-up with a generally manageable safety profile (median progression-free survival 27.

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Background: Nineteen genomic regions have been associated with high-grade serous ovarian cancer (HGSOC). We used data from the Ovarian Cancer Association Consortium (OCAC), Consortium of Investigators of Modifiers of (CIMBA), UK Biobank (UKBB), and FinnGen to identify novel HGSOC susceptibility loci and develop polygenic scores (PGS).

Methods: We analyzed >22 million variants for 398,238 women.

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Background: Low-grade serous and endometrioid ovarian cancers and adult-type granulosa cell tumors are rare ovarian malignancies that show high estrogen receptor positivity. Recurrences of these subtypes of ovarian cancer are often treated with conventional chemotherapy, although response rates are disappointing.

Primary Objective: To determine the overall response rate of the combination therapy of abemaciclib and letrozole in patients with estrogen receptor-positive rare ovarian cancers.

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