2011
DOI: 10.1158/1535-7163.mct-11-0233
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A Pilot Clinical Study of Treatment Guided by Personalized Tumorgrafts in Patients with Advanced Cancer

Abstract: Patients with many advanced solid cancers have very poor prognosis, and improvements in life expectancy are measured only in months. We have recently reported the remarkable clinical outcome of a patient with advanced, gemcitabine-resistant, pancreatic cancer who was later treated with DNA-damaging agents, on the basis of the observation of significant activity of this class of drugs against a personalized tumorgraft generated from the patient’s surgically resected tumor. Here, we extend the approach to patien… Show more

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Cited by 350 publications
(317 citation statements)
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“…However, experimental and clinical evidence demonstrated that anti-stromal approaches may favour PDAC aggressiveness, reinforcing the need to critically revisit the complexity of cancer-stroma interactions for translational and pharmacological implications 4 . Recent studies suggested that early passages of primary PDAC cells and "avatar" mice can mimic the genetic diversity that characterizes the human disease and might be better predictors of drug activity, including the standard treatment with gemcitabine 5,6 .…”
Section: The Aim Of the Present Study Was To Develop Chick-embryo Chomentioning
confidence: 99%
See 1 more Smart Citation
“…However, experimental and clinical evidence demonstrated that anti-stromal approaches may favour PDAC aggressiveness, reinforcing the need to critically revisit the complexity of cancer-stroma interactions for translational and pharmacological implications 4 . Recent studies suggested that early passages of primary PDAC cells and "avatar" mice can mimic the genetic diversity that characterizes the human disease and might be better predictors of drug activity, including the standard treatment with gemcitabine 5,6 .…”
Section: The Aim Of the Present Study Was To Develop Chick-embryo Chomentioning
confidence: 99%
“…However, experimental and clinical evidence demonstrated that anti-stromal approaches may favour PDAC aggressiveness, reinforcing the need to critically revisit the complexity of cancer-stroma interactions for translational and pharmacological implications 4 . Recent studies suggested that early passages of primary PDAC cells and "avatar" mice can mimic the genetic diversity that characterizes the human disease and might be better predictors of drug activity, including the standard treatment with gemcitabine 5,6 .Despite several studies used such in vivo models in order to promote drug development and selection, their costs and complexity impaired the translation of these results in the clinical setting. Novel, cost-effective models that similarly mimic tumor biology and provide faster information on the activity of anticancer therapies could therefore make an important contribution to the advancement of personalized medicine.…”
mentioning
confidence: 99%
“…On espère ainsi éviter les essais superflus, les délais ainsi que les toxicités inutilement encourues. Une étude clinique publiée il y a trois ans [7] (sans analyse génomique préalable) en faisait une démonstration de principe sur 14 patients atteints de cancers avancés : 63 agents anticancéreux avaient été testés sur les 14 avatars obtenus, et 17 traitements efficaces sur l'avatar (certains étant des combinaisons de deux molécules) avaient été sélectionnés. Finalement, onze des malades ont présenté une réponse (partielle, avec réduction mais non disparition de la tumeur) après utilisation du traitement efficace sur l'avatar.…”
Section: Des Xénogreffes Aux Avatarsunclassified
“…Par ailleurs, l'expérience à ce jour indique que le taux de succès est faible, seuls 10 à 20 % des interventions suggérées par la génomique s'avérant efficaces [2,3]. Il devient donc très important d'avoir des indications complémentaires pour faire le meilleur choix, et le passage par un test sur un avatar portant la tumeur du patient est indubitablement une option intéressante, d'autant que les études rapportées dans cette chronique montrent toutes une bonne cohérence entre efficacité sur l'avatar et réponse chez le patient [5][6][7][8]. Cette approche n'est pas parfaite : elle est coûteuse, techniquement exigeante et surtout elle impose un délai important (six mois environ) dans des situations où il est souvent urgent de trouver le bon traitement.…”
Section: Une Tentative Qui S'inscrit Dans Une Tendance Lourdeunclassified
“…Comme cela a déjà été démontré pour d'autres tumeurs xénogreffées [2][3][4], la caractérisation histopathologique des échantillons de la collection montrait une très bonne concordance entre la xéno-greffe et la tumeur du patient correspondant. La conservation de l'architecture de la tumeur d'origine est une caracté-ristique importante de cette collection.…”
Section: Diversité Histopathologique De La Collection De Cancers Colounclassified