Publications by authors named "Gougis P"

Background: Oligoprogression (OP) is common in patients with metastatic non-small cell lung cancer (mNSCLC) treated with immune checkpoint inhibitors (ICIs). This study aims to assess the benefit and the safety profile of ablative radiotherapy (RT) for OP in mNSCLC treated with pembrolizumab in first-line setting.

Methods: We retrospectively analyzed records of all consecutive mNSCLC patients who underwent treatment with pembrolizumab (+/- chemotherapy) in first-line setting and developed an OP treated with ablative RT while continuing pembrolizumab, in a French Hospital from 2019 to 2022.

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Background: Suboptimal treatment delays is known to impact prognosis of patients with cancer but optimal timing in specific subgroups remains poorly studied. This study aimed to analyze treatment delays in young women treated for a breast cancer (BC) on and its impact on their prognosis using French Nationwide Data.

Methods: Using the CAREPAT-YBC Cohort based on the French National Healthcare System Database, we analyzed disease-free survival (DFS) in 22,093 young women (18-45 years) who underwent either surgery-chemotherapy-radiotherapy pathway (adjuvant setting, 15,433 patients) or chemotherapy-surgery-radiotherapy pathway (neoadjuvant setting, 6660 patients), according to delays between the different pathways.

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Article Synopsis
  • The older population makes up about 50%-60% of newly diagnosed cancer patients, making it essential to consider their specific healthcare needs.
  • Older patients face higher risks of severe side effects from cancer treatments due to age-related factors and existing health conditions, leading to often being under-treated.
  • The review highlights the importance of understanding cancer drug pharmacology and advocating a cautious treatment approach to minimize dangerous toxicities in older patients.
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  • * Men exhibited higher rates of 90-day reoperation (21.2% vs. 18.8%) and mortality (1.2% vs. 0.9%) after surgery, although women had a higher 90-day mortality rate for bladder cancer.
  • * The study emphasizes the importance of addressing gender disparities in access to cancer surgery and improving outcomes for both men and women.
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Background: The effect of primary cytoreductive surgery vs interval cytoreductive surgery on International Federation of Gynecology and Obstetrics stage IV ovarian cancer outcomes remains uncertain and may vary depending on the stage and the location of extraperitoneal metastasis. Emulating target trials through causal assessment, combined with propensity score adjustment, has become a leading method for evaluating interventions using observational data.

Objective: This study aimed to assess the effect of primary vs interval cytoreductive surgery on progression-free and overall survival in patients with International Federation of Gynecology and Obstetrics stage IV ovarian cancer using target trial emulation.

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Background: Circadian rhythms regulate cellular physiology and could influence the efficacy of endocrine therapy (ET) in breast cancer (BC). We prospectively tested this hypothesis within the UNIRAD adjuvant phase III trial (NCT01805271).

Methods: 1278 patients with high-risk hormonal receptor positive (HR+)/HER2 negative (HER2-) primary BC were randomly assigned to adjuvant ET with placebo or everolimus.

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Importance: With the widespread use of immune checkpoint inhibitors (ICIs), concerns about their pregnancy outcomes through maternal exposure have emerged, and clinical comparative data are lacking.

Objective: To assess the risk of pregnancy-, fetal-, and/or newborn-related adverse outcomes associated with exposure to ICIs compared with exposure to other anticancer agents.

Design, Setting, And Participants: In this cohort study, all reports mentioning a pregnancy-related condition and an antineoplastic agent (Anatomical Therapeutic Chemical classification group L01) used for a cancer indication registered in the World Health Organization international pharmacovigilance database VigiBase up to June 26, 2022, were extracted.

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  • Many people with breast cancer already have other health issues and are taking medications before they are diagnosed.
  • A study looked at 235,368 French women with breast cancer to see how their medications affected their survival.
  • They found some medications that might help survival and some that might hurt it, and the full results can be checked online for more details.
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  • Immune-checkpoint inhibitors (ICI) have transformed cancer treatment by utilizing the immune system, but they can cause serious, life-threatening immune-related adverse events (irAE) that can affect various organs.
  • Analysis of data from the international pharmacovigilance database revealed 25 types of irAE across over 50,000 cases, with skin reactions and pneumonitis being the most common, and a shift in treatment regimens favoring anti-PD1 and anti-PDL1 therapies after 2016.
  • Specific risk factors for certain irAE include cancer types and treatment regimens, with a median onset time for complications varying greatly; this underscores the importance of monitoring during ICI therapy
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Therapeutic drug monitoring (TDM) involves measuring and interpreting drug concentrations in biological fluids to adjust drug dosages. In onco-hematology, TDM guidelines for oral molecular targeted therapies (oMTTs) are varied. This study evaluates a quantitative approach with a score to predict the clinical usefulness of TDM for oMTTs.

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Context: Obesity prevalence is persistently increasing worldwide. Among surgical therapeutic procedures, bypass surgery and sleeve gastrectomy have shown the best results regarding weight loss, prevention, and treatment of secondary complications. However, these surgeries are associated with an increased risk of malabsorption and metabolic changes that could further affect the pharmacokinetics of drugs.

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Background: Gender-based disparities in health-care are common and can affect access to care. We aimed to investigate the impact of gender and socio-environmental indicators on health-care access in oncology in France.

Methods: Using the national health insurance system database in France, we identified patients (aged ≥18 years) who were diagnosed with solid invasive cancers between the 1st of January 2018 and the 31st of December 2019.

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  • * Research shows that patients with thymic epithelial tumors (TET), especially thymoma, experience ICI-related myotoxicities more frequently and with greater severity than those with other cancers.
  • * The presence of anti-acetylcholine-receptor antibodies suggests a link between thymic-related autoimmune responses and ICI myotoxicities, indicating that assessing the thymus could help predict these serious side effects in patients undergoing ICI therapy.
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Importance: Targeted therapies directed against ERBB2 are the cornerstone of medical treatment for ERBB2-positive breast cancers but are contraindicated during pregnancy.

Objectives: To describe the association of exposure to anti-ERBB2 agents during pregnancy with pregnancy and fetal or newborn outcomes, and to compare the risk and types of adverse outcomes reported more frequently in this context than after exposure to other anticancer agents.

Design, Setting, And Participants: For this case-control study, All reports with a pregnancy-related condition and an antineoplastic agent (Anatomical Therapeutic Chemical classification group L01) registered in the World Health Organization international pharmacovigilance database VigiBase up to June 26, 2022, were extracted.

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Objective: To evaluate the prognostic value of programmed death ligand-1 (PD-L1) and programmed death-1 (PD-1) expression in patients with upper tract urothelial carcinoma (UTUC).

Patients And Methods: A retrospective multicentre study was conducted in 283 patients with UTUC treated with radical nephroureterectomy (RNU) between 2000 and 2015 at 10 French hospitals. Immunohistochemistry analyses were performed using 2 mm-core tissue microarrays with NAT105® and 28.

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Background: Small-cell lung cancer (SCLC) accounts for approximately 15% of lung cancer and is associated with poor prognosis. In platinum-refractory or -resistant SCLC patients, few treatment options are available. Topotecan is one of the standards of care for these patients, however, due to its high toxicity, several different approaches are employed.

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Introduction: The number of cancer patients receiving long-term hemodialysis (HD) is increasing, and HD could jeopardize treatments' safety and efficacy. Therefore, managing anticancer drugs is critical in this frail population. In addition, evidence of HD safety or risk is regularly released both for cytotoxic chemotherapy (CT) or hormone therapy (HT) as well as new therapies with molecularly targeted therapies (MTT), immune checkpoint inhibitors (ICI), and a summary of current knowledge is needed.

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Article Synopsis
  • The study investigates the connection between immune-checkpoint inhibitor (ICI)-associated myotoxicity, specifically looking at myocarditis and myositis, which can be life-threatening.
  • It details a treatment strategy that involved the use of mechanical ventilation for respiratory muscle issues and the administration of the drugs abatacept and ruxolitinib in patients diagnosed with severe ICI myocarditis.
  • Results showed a significant drop in myotoxicity-related fatalities from 60% in the initial patient group to just 3.4% in the later group, indicating the effectiveness of early intervention and specific treatment adjustments.
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Survival disparities persist in ovarian cancer and may be linked to the environments in which patients live. The main objective of this study was to analyze the global impact of the area of residence of ovarian cancer patients on overall survival. The data were obtained from the Surveillance, Epidemiology and End Results (SEER) database.

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Background: Consumption of herbs, food used as medicine and dietary supplements (HFDSs) is common in cancer patients. Herbs and food-drug interactions (HFDIs) can lead to serious adverse effects and can be prevented. We previously reviewed cytochrome P-450 (CYP)-mediated HFDI for 261 HFDSs and we classified the risk of CYP inhibition and induction on a level of evidence scale from 1 (high evidence, supported by several clinical studies) to 5 (low evidence, only limited preclinical data).

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Immunotherapies and immune checkpoint inhibitors (ICI) represent the latest revolution in oncology. Several studies have reported an association between the use of corticosteroids and poorer outcomes for patients treated with ICIs. However, it has been never established whether corticoid-induced tumor progression under ICI treatment could be reversible.

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Breast cancer (BC) is the most common cancer in women worldwide. Neoadjuvant chemotherapy (NAC) makes it possible to monitor in vivo response to treatment. Several studies have investigated the impact of the seasons on the incidence and detection of BC, on tumor composition, and on the prognosis of BC.

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