E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Patients with intermediate-risk gastrointestinal stromal tumor presenting a high Genomic Grade Index |
Patient présentant une tumeur stromale gastrointestinale de risuqe intermédaire avec un index génomique élevé |
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E.1.1.1 | Medical condition in easily understood language |
Patients with intermediate-risk gastrointestinal stromal tumor presenting a high Genomic Grade Index |
Patient présentant une tumeur stromale gastrointestinale de risuqe intermédaire avec un index génomique élevé |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective of this study is to assess the efficacy of adjuvant Imatinib on rate of metastatic relapse at 2 years in patients with intermediate-risk gastrointestinal stromal tumor presenting a high Genomic Grade Index. |
L'objectif principal de cette étude est d'évaluer l'efficacité de l'Imatinib en adjuvant sur le taux de rechute métastatique à 2 ans chez des patients de risque intermédiaire selon la classification de Miettenen et don le Genomic index est de mauvais pronostic. |
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E.2.2 | Secondary objectives of the trial |
The second objectives of this study are to compare the two therapeutic approaches in terms of:
- Metastasis-free survival at 1 year, 2 years and 3 years
- Overall survival
- Clinical and biological tolerance, safety
- Quality of life of patients and caregivers
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Les objectifs secondaires de cette étude sont de comparer ces deux approches thérapeutiques en terme de :
- Survie sans métastase à 1 an, 2 ans et 3 ans
- Survie globale
- Tolérance clinique et biologique, toxicité
- Qualité de vie
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Subject with no prior radiation therapy, no prior chemotherapy, no molecular targeted or biological therapy
- Subject with a Performance Status between 0-2
- Subject with a gastrointestinal stromal tumor, intermediary risk from the Armed Forces Institute of
Pathology classification [Miettenen 2006]
- Subject with Genomic Grade Index higher than 10 determined by CGH array;
- Subject with surgery for primary tumor performed from 2 weeks to 2 months before starting adjuvant Imatinib mesylate;
- Subject with no evidence of residual macroscopic disease after surgery (RO). Microscopically infiltrated margins, or supposed to be are allowed (R1)
- Subjects with absence of distant metastases
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- Sujets n'ayant eu aucune radiothérapie antérieure, aucune chimiothérapie antérieure, aucune thérapie ciblée
- Subject présentant un Performance Status compris entre 0 et 2
- Sujet avec une tumeur stromale gastro-intestinale de risque intermédiaire selon la classification de Miettenen
- Sujet présentant un Genomic Index ≥10 déterminé par CGH array;
- Sujet avec une chirurgie de la tumeur réalisée dans les 2 semaines à 2 mois avant le début du traitement par Imatinib adjuvant;
- Sujet ayant beneficié d’une chirurgie RO ou R1
- Sujets non métastatiques
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E.4 | Principal exclusion criteria |
- Subject under 18 years old or pregnant or breast-feeding women.
- Subject with a contraindication to Imatinib, a known hypersensitivity to the active substance or to any of
the excipients (ambivalence clause);
- Subject treated with medicinal products that induce CYP3A4;
- Subject who have experienced spontaneous tumor rupture before surgery (risk of spread);
- Subject whose tumor has a PDGFRA D842V mutation evidenced by sequencing from tumor block;
- Subject whose mutational status meets the wild phenotype definition as evidenced by sequencing from tumor block;
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- Sujet mineurs ou femmes enceintes ou allaitantes.
- Sujet avec une contre-indication à l’Imatinib, une hypersensibilité connue à la substance active ou à n'importe lequel de ces excipients;
- Sujet traité avec des médicaments inducteur du CYP3A4;
- Sujet ayant présenté une rupture tumorale spontanée en préopératoire (risque de dissémination);
- Sujet dont la tumeur a une mutation PDGFRA D842V;
- Sujet dont la tumeur présente un statut mutationel de phénotype sauvage;
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary criterion is the efficacy of adjuvant Imatinib defined by the rate of metastatic relapse at 2 years based on a thoraco-abdominal and pelvic CT-scan. The rate of metastatic relapse at two years will be defined by the percentage of patients developing thoraco-abdominal and pelvic metastases on CT scan. Computed tomography scan with contrast (chest, abdomen and pelvis plus other areas as appropriate) will be used for assessment of metastasis. The same diagnosis method must be used throughout the study to evaluate diagnose a metastatic |
Le critère principal de jugement est le taux de rechute métastatique à 2 ans à partir des données issues des scanners thoraco-abdominaux et pelviens. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Secondary efficacy endpoints
Efficacy will be complemented by 1-year, 2-year and 3-year metastasis-free survival based on a thoraco-abdominal and pelvic CT-scan using the same procedure as detailed below.
Metastasis-free survival will be defined as the time from the baseline visit (feedback of the randomization to the patient) and the earliest date of documented radiological occurrence of metastasis.
Overall survival
Overall survival will be defined as the time from baseline evaluation (randomization) until death due to any cause (linked or not to the disease).
Clinical and biological tolerance
Safety and tolerance will be assessed using the Common Terminology Criteria for Adverse Events (CTCAE) and Common Toxicity Criteria (CTC) at 15 days, 1 month and every three months. The investigator will grade all adverse events and severe adverse events (defined by the standard medical dictionary for regulatory activities, MedDRA) according to the NCI-CTCAE (version 4.0). Adverse events will be grouped by system organ classes.
Patients’ quality of life
The quality of life of the subject will be assessed by means of 2 questionnaires:
- A generic questionnaire: the French version of the SF36 [Leplège 1998]. This standardized questionnaire validated for the French population comprises 36 items that are used to calculate eight scale scores (physical functioning, social functioning, role–physical, role–emotional, mental health, vitality, bodily pain and general health). Two composite summary measures can also be calculated; the Physical Component Summary and the Mental Component Summary scores. SF36 yield scores on a 0–100 scale (0 = low QoL; 100 = high QoL). French reference values are available.
- A specific questionnaire, the French version of the EORTC QLQ-C30. EORTC QLQ-C30, assesses the quality of life of cancer patients. It is a 30-item questionnaire comprised of five functional scales (physical, role, emotional, cognitive, social), nine symptom scales and single-symptom items, and a global health status scale. The scores for each scale/item range from 0 to 100. A high score on a functional scale represents a high/healthy level of functioning, a high score on the global health status scale represents a high quality of life, but a high score on a symptom scale represents a high level of symptomatology. Among instruments the most widely used at the international level to measure cancer-related quality of life, the EORTC QLQ-C30 presents satisfactory metrological properties [Sprangers 1998, Cull 1998].
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L'efficacité de l'Imatinib en adjuvant sur le taux de rechute métastatique sera étudie à 1 an-2 ans et 3 ans à partir des données issues des scanners thoraco-abdominaux et pelviens. pour une survie sans métastase à 1 an, 2 ans et 3 ans
La Survie globale sera étudié entre la randomisation et jusqu'au déces liés ou non à la pathologie
Tolérance clinique et biologique, toxicité: la tolérance et la sécurité seront évaluées à partir des criteres CTCAE et CTC à 15 jour , 1 mois puis tous les 3 mois. L'investigateur quotera les évènements indésirables et les évènements indésirables graves selon la version 4.0 du NCI-CTCAE. Les évènement indésirable seront classés par classes d'organes
La qualité de vie des sujets sera mesurée a l'aide de 2 auto-questionnaires: le SF36 en version française et l'auto-questionnaire EORTC QLQ-C30.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | Yes |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Sans médicament |
No medical product |
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E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 18 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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the last visit of the last subject undergoing the trial will be the end of the study |
La dernière visite du dernier sujet inclus dans l'étude |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |