1642P Improve the conditions of lockdown may decrease anxiety among cancer patients during the COVID-19 pandemic

International audienceBackgroundThe COVID-19 pandemic is a highly traumatic event that may lead to a greater risk of developing psychological disorders, especially in cancer patients who are more likely to be infected with the virus and to develop complications. The objective of this study was to measure anxiety levels among cancer patient during COVID-19 pandemic and the associated factors including patients’ conditions of lockdown.Go to:MethodsA cross-sectional study was conducted among adult cancer patients (hematological and solid tumors) receiving outpatient treatment or during follow-up in a French Comprehensive Cancer Centre. A postal self-administered questionnaire was sent to 4000 patients in June 2020, including Anxiety (Stait Trait), Fear of a cancer recurrence (FCR) as well as questions relative to socio-demographics, management of cancer care during the pandemic and the conditions of lockdown.Go to:ResultsA total of 1097 patients completed the questionnaire (63.2% female; mean age 64.7 years ±12.3 years, 24.3% haematological cancers). Mean IES-R score was 15.7 ([0-81]) and 14.7% of patients had moderate or severe post-traumatic stress (score ≥33). Mean anxiety score was 39.0 (SD=13.6, range: [20-80]) with 30.5% of patients having anxiety symptoms. In the multivariate analysis we found that anxiety level was significantly increased for younger patients (OR=1.69, 95%IC [1.01-2.82]), female (OR=1.65, 95%IC [1.05-2.59]), patients with a high FCR score (OR=4.90, 95%IC [2.84-8.44]), patients unsatisfied with the current management of their cancer (OR=2.4, 95%IC [1.58-3.66]) and patients afraid of coming to hospital for fear of COVID (OR=2.10, 95%IC [1.32-3.35]). Protective factors against anxiety were staying busy during the lockdown period (OR=0.46, 95%IC [0.30-0.72]) and seeing the positive aspects of lockdown (OR=0.43, 95%IC [0.28-0.66]).Go to:ConclusionsThese results contribute to a better understanding of the psychological consequences of COVID-19 pandemic in the context of cancer and highlight the need to better support patients at high risk of developing high anxiety levels. Conditions of lockdown are important to contain anxiety among cancer patients

A chemogenomic approach to identify personalized therapy for patients with relapse or refractory acute myeloid leukemia: results of a prospective feasibility study

International audienceTargeted next-generation sequencing (tNGS) and ex vivo drug sensitivity/resistance profiling (DSRP) have laid foundations defining the functional genomic landscape of acute myeloid leukemia (AML) and premises of personalized medicine to guide treatment options for patients with aggressive and/or chemorefractory hematological malignancies. Here, we have assessed the feasibility of a tailored treatment strategy (TTS) guided by systematic parallel ex vivo DSRP and tNGS for patients with relapsed/refractory AML (number NCT02619071). A TTS issued by an institutional personalized committee could be achieved for 47/55 included patients (85%), 5 based on tNGS only, 6 on DSRP only, while 36 could be proposed on the basis of both, yielding more options and a better rationale. The TSS was available in <21 days for 28 patients (58.3%). On average, 3 to 4 potentially active drugs were selected per patient with only five patient samples being resistant to the entire drug panel. Seventeen patients received a TTS-guided treatment, resulting in four complete remissions, one partial remission, and five decreased peripheral blast counts. Our results show that chemogenomic combining tNGS with DSRP to determine a TTS is a promising approach to propose patient-specific treatment options within 21 days

L’année 2021 dans tous ses états : une synthèse digérée

International audience5548 Background: Ovarian cancer is the leading cause of death by gynecological cancer. Complete surgery remains one of the main prognostic factors. Laparoscopic exploration is mandatory to assess surgical resectability at diagnosis or after neoadjuvant chemotherapy. However, there is no clinical or biological marker that can correctly predict resectability and may be able to avoid a second laparoscopic exploration for initially unresectable diseases. Our aim was to assess circulating tumor DNA (ctDNA) value as a predictive non-invasive marker of evolution towards resectability for patients with epithelial ovarian cancer receiving first-line chemotherapy. Methods: We explored in this work one of the secondary objectives of the CIDOC study (NCT03302884). CIDOC is a multicenter prospective study aiming to explore ctDNA value as early marker of disease relapse after first-line treatment for epithelial ovarian cancer. Patients with mucinous histology or early stages not requiring chemotherapy are excluded. Plasma samples are collected at diagnosis, during neoadjuvant chemotherapy, and during follow-up. After DNA extraction, panel-based next generation sequencing is performed on both tumor samples and germline DNA, and somatic mutations of interest are selected for ctDNA monitoring. ctDNA analyses are conducted using droplet digital PCR (BioRad QX200) by measuring the variant allele fraction (VAF) of previously identified mutations. Results: This intermediary analysis has included 47 patients diagnosed between March 2017 and December 2019. Median age was 69 years old (48 – 84). Most of the patients had advanced disease (89.4% stage FIGO III or IV), serous histology (94.8%), and high grade tumor (92.3%). Most of the patients underwent complete interval cytoreductive surgery (76.3% vs 17.4% complete upfront surgery). Most of the tumors had TP53 mutations (85.1%), following by alterations involving DNA repair genes (38.3%). Median cell-free DNA concentration at baseline was 0.38 ng/µL (0 – 12.8). ctDNA was identified in 92.1% of patients at baseline with a median VAF of 1.84% (0 – 42.52%). ctDNA VAF was correlated to the peritoneal dissemination ( p= 0.039) assessed with the peritoneal cancer index. ctDNA clearance after preoperative chemotherapy tended to be correlated to achievement of complete interval surgery for patients receiving neoadjuvant chemotherapy ( p= 0.108). Conclusions: ctDNA may be a promising non-invasive marker to assess peritoneal cancer spreading and to predict surgical resectability after neoadjuvant chemotherapy. If confirmed in larger populations, this may enable to avoid additional surgical explorations for patients who remain ctDNA positive after chemotherapy. Clinical trial information: NCT03302884