Timothée MARCHAL

Dr. Timothée MARCHAL

Institute Curie, Paris, Île-de-France, France
orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 July 2022 in Cancers
Verified
Journal Article
Open access
PDF file
MGManon Gouez
Manon Gouez
LDLidia Delrieu
Lidia Delrieu
CBCarole BOULEUC
Carole BOULEUC
NGNicolas Girard
Nicolas Girard
BRBruno Raynard
Bruno Raynard
TMTimothée MARCHAL
Timothée MARCHAL
Malnutrition is associated with a greater risk of morbidity and mortality and lower tolerance to chemotherapy. Our purpose was to study the association between nutritional status and the efficiency and tolerance of immunotherapy in non-small cell lung cancer (NSCLC). Nutritional and oncological data were reported at 2 months (M2) and 4 months (M4) after the initiation of immunotherapy (M0). The influence of nutritional status at M0 was estimated with the efficacy and toxicity of immunotherapy at M2 to M4. In total, 127 patients were included in the study, and nutritional status was estimated at M0 for 120 patients: 67% were not malnourished, 20% presented with moderate malnutrition, and 13% presented with severe malnutrition. There was no significant link between the nutritional status at M0 and the toxicity of immunotherapy at M2 and M4. However, severe malnutrition was significantly associated with treatment efficacy at M2 (p = 0.04) and with a lower survival rate with an HR (Hazard Ratio) = 2.32–95% C.I: 1.13–4.75 (p = 0.02). Furthermore, a monthly decrease of 1% of the weight had an HR = 1.17–95% C.I: 1.13–1.21 (p = 0.0001). Severe malnutrition and weight loss are independent factors associated with lower survival. Studies integrating the systemic detection of sarcopenia with a closer nutritional follow-up could highlight an improvement in survival.

3 May 2021 in Cancers
Verified
Journal Article
Open access
PDF file
LCLaetitia Collet
Laetitia Collet
LDLidia Delrieu
Lidia Delrieu
ABAmine Bouhamama
Amine Bouhamama
HCHugo Crochet
Hugo Crochet
ASAurelie Swalduz
Aurelie Swalduz
PHPierre Etienne HEUDEL
Pierre Etienne HEUDEL
The response to immunotherapy has been little investigated in overweight and obese cancer patients. We evaluated the relationships between BMI, toxicity, and survival in patients treated by immunotherapy for metastatic cancer. We included metastatic cancer patients treated by immunotherapy between January 2017 and June 2020 at the Centre Léon Bérard. In total, 272 patients were included: 64% men and 36% women, with a median age of 61.4 years. BMI ≥ 25 in 34.2% and 50% had non-small cell lung cancer (n = 136). Most received monotherapy, with nivolumab in 41.9% and pembrolizumab in 37.9%. Toxicity, mostly dysthyroiditis, occurred in 41%. Median overall survival (OS), estimated by Kaplan–Meier analysis, was significantly longer for patients with a BMI ≥ 25 than for those with a BMI < 25 (24.8 versus 13.7 months HR = 0.63; 95% CI 0.44–0.92, p = 0.015), and for patients experiencing toxicity than for those without toxicity (NR versus 7.8 months, HR = 0.22; 95% CI 0.15–0.33, p < 0.001). Adjusted OS was associated with toxicity, and the occurrence of toxicity was associated with sex and histological features but not with BMI. Thus, being overweight and experiencing toxicity was associated with longer overall survival in patients treated by immunotherapy. More attention should be paid to body composition in the care of cancer patients.

14 June 2024 in Clinical Nutrition
Verified
Journal Article
Open access
GCGéraldine M. Camilleri
Géraldine M. Camilleri
LDLidia Delrieu
Lidia Delrieu
CBCarole Bouleuc
Carole Bouleuc
JPJean-Yves Pierga
Jean-Yves Pierga
PCPaul Cottu
Paul Cottu
TMTimothée MARCHAL
Timothée MARCHAL
Malnutrition and sarcopenia are challenges for patients with metastatic breast cancer and have been proposed as independent prognostic factors. Very few studies have addressed the temporal evolution of these parameters and, notably, the separate and combined analysis of sarcopenia and malnutrition. This study aimed to i) determine the prevalence of malnutrition and sarcopenia, individually and combined, and their evolution over time, ii) identify risk factors for each condition, and iii) explore their impact on overall survival (OS). This retrospective study was conducted on 111 patients treated for at least a third-line metastatic breast cancer at the Institut Curie between January 1st and March 31st, 2018. Solitary malnutrition was defined from weight loss and body mass index values while solitary sarcopenia was defined solely based on low muscle mass. We analyzed solitary malnutrition, solitary sarcopenia, and then malnutrition with or without sarcopenia, at three key stages (T1: diagnosis of metastasis, T2: initiation of third-line treatment, and T3: 3-month re-evaluation). Univariate and multivariate logistic regression analyses were conducted to investigate the risk factors. We performed Cox proportional hazards analyses for each variable. At T1, the prevalence of solitary malnutrition, solitary sarcopenia and malnutrition with or without sarcopenia was 18.6%, 36.1% and 48.9% respectively, increasing to 27.7%, 45.5% and 56.6% at T2. At T2, in multivariate logistic regression analyses, patients aged over 60 years were at an elevated risk of experiencing solitary malnutrition as well as malnutrition with or without sarcopenia, but not solitary sarcopenia. In multivariate analyses, solitary malnutrition was significantly associated with poorer OS (HR 2.2 [95% CI 1.1-4.1], p = 0.02), while solitary sarcopenia and malnutrition with or without sarcopenia showed no association. Solitary malnutrition and sarcopenia were highly prevalent in patients with metastatic breast cancer, affecting around a quarter and half of patients respectively at third-line treatment initiation. Notably, solitary malnutrition emerged as a prognostic factor for overall survival, whereas no significant association was observed for solitary sarcopenia or malnutrition with or without sarcopenia. This highlights the critical need for early identification of patients at risk of malnutrition and the importance of timely intervention.

23 February 2023 in BMJ Supportive & Palliative Care
Verified
Journal Article
Closed access
PDF file
LTLaura Thery
Laura Thery
MSMatthieu de Stampa
Matthieu de Stampa
ABAlexis Burnod
Alexis Burnod
RSRomain Seban
Romain Seban
CLCéline Laouisset
Céline Laouisset
CBCarole BOULEUC
Carole BOULEUC
Objectives To describe the population of a palliative care day hospital (PCDH) in oncology and analyse the end-of-life trajectory. Methods Monocentric retrospective cohort study of all referred patients for the first time to PCDH over an 8-month period with the data collected in all PCDH in their pathway care. Results 116 patients were included for 319 stays in PCDH. At first referral PCDH, 62 (53.4%) patients had ongoing anticancer therapy. Twenty-four (20.7%) and 63 (54.3%) patients were in an unstable and deteriorating phase, respectively. Mean (SD) Eastern Cooperative Oncology Group performance status score was 2.8 (0.7). Mean (SD) stay per patient was 2.8 (2.2). For all stays, mean (SD) of joint intervention of palliative care team and oncologist was 1.2 (1.2) per patient. Mean (SD) of technical acts performed was 0.2 (0.6) per patient. Among the 109 deceased patients, 16 patients (14.7%) and 7 patients (6.4%) had received chemotherapy in the last month and 15 days before death, respectively. Conclusion Our PCDH is a suitable place for a complex population still living at home. The reported patients’ demographics and PCDH’s organisation lead to a hybrid outpatient intervention between outpatient clinics and hospice care services. A randomised multicentric trial is ongoing to explore the impact of PCDH on patients’ trajectory and the use of resources.

7 March 2022 in Nutrition Clinique et Métabolisme
Verified
Journal Article
Closed access
VRV. Royer-Garabige
V. Royer-Garabige
ASA. Schmitt
A. Schmitt
MMM. Milder
M. Milder
DVD. Vansteene
D. Vansteene
TMTimothée MARCHAL
Timothée MARCHAL

6 September 2026
Verified
Preprint
Open access
PDF file
TMTimothée MARCHAL
Timothée MARCHAL
A well-written narrative review with a sound premise: setting popular "anticancer diet" narratives against the convergence of international guidance, without dismissing metabolic interventions altogether. The guideline overview is welcome, as is the...