TRIAL DETAIL

The Stop-GIST Trial: Discontinuation of Imatinib in Patients With Oligo-metastatic GIST

Drug:
Trial Name:
The Stop-GIST Trial: Discontinuation of Imatinib in Patients With Oligo-metastatic GIST
NCT#:
Conditions:
Gastrointestinal Stromal Tumor
Status:
Recruiting
Phase:
2
Start Date 11/01/2016
Age of Trial (yrs) 3.8
Treatment Phase:
Adjuvant
Drug Category:
KIT/PDGFRA inhibitor
Strategy:
Block KIT
Trial Type:
Specifically GIST and only GIST
Other Protocol IDs:
Stop-GIST
Sponsor:
Oslo University Hospital
Patient Contact:
Øyvind S Bruland, MD PhD 22934767 ext 47 osb@ous-hf.no Ivar Hompland, MD 22931236 ext 47 ivahom@ous-hf.no
Contact email:
Contact Phone:
Randomized:
IV or Oral:
Oral
Trial Notes:
Patients must have had Mets and are now NED.

Patients with metastatic GIST are currently recommended to have life-long treatment with tyrosine kinase inhibitors (TKI). The standard first-line treatment is imatinib, which is switched to other drugs at progression or if the patient does not tolerate imatinib. The prevailing hypothesis is that imatinib and other TKIs fail to completely eradicate metastatic GIST and that progression is inevitable if imatinib treatment is discontinued. However, the SSGXVIII/AIO trial found that 3 years of adjuvant imatinib yielded both superior RFS and OS rates compared to 1 year of adjuvant imatinib, which finding does not exclude the hypothesis that sufficiently long administration of imatinib might sometimes eradicate subclinical GIST. Furthermore, a few retrospective studies have reported favorable survival outcomes with surgery of residual disease in metastatic GIST in patients responding to imatinib, and a subset (approximately 20%) of patients with advanced GIST do not progress within the first 10 years on imatinib. Imatinib treatment comes with potential side-effects and, as of now, considerable costs to the society. Therefore, discontinuation of imatinib in highly selected patients, i.e. those who have received imatinib for longer than 5 years and who have undergone metastasectomy of all macroscopic oligometastatic disease, needs to be explored as a novel treatment strategy. Discontinuation might lead to detection of durable complete remissions without imatinib or even cure.

Trial Links

Trial Results

Drug Information

All About Gleevec (LRG website)
 
Gleevec prescribing information
 
Patient assistance program (insurance, financial help, etc).
 
Gleevec blood level monitoring (LRG story/info)
 
Gleevec drug interactions (LRG site)
 
Gleevec.com website (GIST portion)
 
FDA approves adjuvant Gleevec
 
Effect of a proton pump inhibitor on the pharmacokinetics of imatinib
 
Imatinib Mesylate May Improve Fasting Blood Glucose in Diabetic Ph+ Chronic Myelogenous Leukemia Patients Responsive to Treatment
 
European Commission approves new label for Novartis drug Glivec® extending adjuvant therapy to three years for certain GIST patients
 
Disintegration of chemotherapy tablets (including imatinib) for oral administration in patients with swallowing difficulties
 
Imatinib-induced hyperbilirubinemia with UGT1A1 (*28) promoter polymorphism: first case series in patients with gastrointestinal stromal tumor.
 

Trial Sites

Name
Address
City
State
Zip
Country
Oslo
0424
Norway