NCT04193553

Multicentre Placebo-controlled Double-blinded Phase II Study of Lenvatinib Efficacy in Patients With Locally Advanced or Metastatic GIST (Gastrointestinal Stromal Tumor) After Imatinib/Sunitinib Failure

A Multicentre, Comparative, Placebo-controlled, Double-blinded, Phase II Study of the Efficacy of Lenvatinib in Patients With Locally Advanced or Metastatic GIST After Failure of Imatinib and Sunitinib

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 77 (actual)
• Sponsor: Centre Leon Berard · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The primary objective is to compare the efficacy of lenvatinib plus Best Supportive Care versus Placebo plus Best Supportive Care in the treatment of patients with advanced GIST, after failure of imatinib and sunitinib.

Detailed description

Even though the prognosis of advanced GIST has been tremendously improved by the introduction of tyrosine kinase inhibitors, the vast majority of patients will develop secondary resistance to these agents. The therapeutic options of patients with advanced GIST with resistance (or intolerance) to imatinib and sunitinib remain then very limited and prognosis of patients are very poor. Nilotinib has an inferior activity in first line setting as compared to imatinib. Sorafenib has been evaluated in off-label and compassionate use studies with a median PFS close to 3 to 4 months, and a median overall survival close to 9 months with few prolonged tumor control and limited availability. Regorafenib was tested in a phase II and a randomized phase III trial (GRID) in this setting , and provided a significant PFS advantage with no significant improvement in OS. There are no recognized standard options in patients whose tumors progress after 3 or more TKIs. The recently updated guidelines from ESMO in 2014, included the reintroduction of imatinib in an attempt to control the progression of the sensitive cell clones, and on the basis of the results of the RIGHT study. This is therefore a situation with a clear unmet medical need. Lenvatinib is a broad spectrum TKI targeting oncogenes KIT and RET and receptor tyrosine kinases, PDGFRA, VEGFR 1-3 and FGFR 1-4. It has demonstrated activity in iodine resistant metastatic thyroid cancers. Whether lenvatinib would be a useful agent in patients with GIST is not known but there is a rationale to investigate its activity in patients with advanced GIST. In the present study, we propose to analyze the antitumor activity of lenvatinib in patients with GIST failing to at least imatinib and sunitinib in a randomized setting, vs placebo.

Conditions

• Gastro Intestinal Stromal Tumour

Interventions

Type	Name	Description
DRUG	Lenvatinib	Lenvatinib will be administered continuously but patient's follow-up visits will be scheduled monthly. The starting dose of study treatment is 24mg, once daily, at the same time. Recommendations for dose reductions will be respected according to BI Lenvatinib. If a patient misses a dose, and it cannot be taken within 12 hours, then that dose should be skipped and the next dose should be taken at the usual time of administration. Study treatments will be continued until a treatment discontinuation criteria is met.
DRUG	Placebo	Placebo will be administered continuously but patient's follow-up visits will be scheduled monthly. The starting dose of study treatment is 24mg, once daily, at the same time. Recommendations for placebo dose reductions are the same as for Lenvatinib. If a patient misses a dose, and it cannot be taken within 12 hours, then that dose should be skipped and the next dose should be taken at the usual time of administration. Study treatments will be continued until a treatment discontinuation criteria is met. In case disease progression, patients in control arm could switch in the Lenvatinib + BSC arm.
OTHER	Best supportive care	At any time during the study, patients should receive best supportive care. Best Supportive care as medically indicated for the patient's well-being may be prescribed at the investigator's discretion. Based on the patient's condition, it may consist (but not limited) of analgesics, antibiotics, steroids, blood transfusion, antiemetics, antidepressants/anxiolytics, nutritional counselling, psychological support, palliative radiotherapy…

Timeline

• Start date: 2020-01-17
• Primary completion: 2024-01-30
• Completion: 2024-04-26
• First posted: 2019-12-10
• Last updated: 2024-06-18

Locations

14 sites across 1 country: France