NCT07096609 Lenvatinib After Progression on Imatinib, Sunitinib, and Regorafenib for GIST Patients

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 48 participants in total. It began in 2025-10-29 with a primary completion date of 2027-12-31.

Brief Summary

The aim of this study is to evaluate the safety and efficacy of lenvatinib in patients with metastatic or advanced GIST who have failed at least imatinib, sunitinib, and regorafenib treatment.

Eligibility Criteria

Inclusion Criteria: 1. Age ≥ 20 years at the time of providing written informed consent. 2. Histologically confirmed metastatic and/or advanced (unresectable or recurrent) GIST with positivity for CD117(+), DOG-1(+), or harboring mutations in the KIT or PDGFRα genes. 3. Documented failure of prior treatment with imatinib, sunitinib, and regorafenib due to disease progression and/or intolerance. * Note: There is no limitation on the number of prior therapies. Prior use of other tyrosine kinase inhibitors (TKIs) or chemotherapy in combination with imatinib, sunitinib, or regorafenib is permitted. * Disease progression is defined as: 1. Increase in tumor size by ≥ 20% per mRECIST version 1.1 2. Emergence of unequivocal new lesions (excluding newly developed small cystic liver lesions within 6 months after initiation of TKI treatment) 3. Appearance of new solid nodules within cystic masses 4. Increase in the size of existing solid nodules within cystic masses (\>20%) * Intolerance to prior TKIs is defined as: 1. Drug compliance \<75% due to ≥ Grade 2 non-hematologic toxicity, despite dose reduction to one level below the standard dose (i.e., imatinib 300 mg/day; sunitinib 37.5 mg/day on a 4-week on/2-week off schedule or 25 mg/day on a continuous schedule; regorafenib 120 mg/day) 2. Despite the same dose reduction as above, the occurrence of febrile neutropenia, Grade 4 neutropenia lasting more than 6 days, Grade 4 thrombocytopenia, Grade 3 thrombocytopenia with clinically significant bleeding, or Grade 3-4 or persistent ≥ Grade 2 non-hematologic toxicity deemed intolerable 4. ECOG performance status of 0-2. 5. All toxicities from previous treatments must have recovered to Grade 0 or 1 as per NCI-CTCAE version 5.0. 6. At least one measurable lesion as defined by mRECIST version 1.1. 7. Adequate bone marrow, liver, renal, and other organ function: * Absolute neutrophil count (ANC) ≥ 1,500/mm³ * Platelets ≥ 100,000/mm³ * Hemoglobin ≥ 8.0 g/dL * Total bilirubin ≤ 1.5 × upper limit of normal (ULN) * AST/ALT ≤ 2.5 × ULN (or ≤ 5 × ULN in case of liver metastases) * Serum creatinine ≤ 1.5 × ULN 8. Life expectancy ≥ 12 weeks 9. A washout period equivalent to at least 4 times the half-life of previous TKI or chemotherapeutic agents is required(Imatinib and regorafenib: ≥ 1 week; Sunitinib: ≥ 2 weeks) 10. Signed written informed consent Exclusion Criteria: 1. Women of childbearing potential who are pregnant or breastfeeding 2. Women or men unwilling to use effective contraception during the study treatment period and for 6 months after the last dose of the investigational drug 3. All participants (both men and women) must use barrier contraception during the treatment period and for at least 1 month after the final dose 4. Women of childbearing potential are defined as sexually mature females who have not undergone hysterectomy or who have not been naturally postmenopausal for at least 12 consecutive months (i.e., had menstruation within the past 12 months) 5. History of any of the following within 6 months prior to enrollment: myocardial infarction, severe or unstable angina, coronary or peripheral artery bypass surgery, congestive heart failure classified as NYHA Class III or IV, stroke or transient ischemic attack (TIA), or clinically significant arrhythmias requiring treatment 6. Uncontrolled active infection 7. Diabetes mellitus with clinically significant signs of peripheral vascular disease 8. Acute or chronic liver disease, or any chronic hepatic disorder (patients with stable chronic hepatitis B are eligible) 9. Uncontrolled gastrointestinal toxicities greater than Grade 2 according to NCI-CTCAE (e.g., nausea, diarrhea, vomiting) 10. Any severe acute or chronic medical or psychiatric condition, or clinically significant abnormal laboratory finding, that may increase the risk associated with study participation or investigational drug administration, or interfere with the interpretation of study results, as determined by the investigator 11. History of life-threatening bleeding or any Grade 3 or 4 bleeding event requiring transfusion, endoscopic intervention, or surgical procedure within 3 months prior to initiation of study drug 12. Treatment with clinically significant systemic anticoagulant or antithrombotic agents within 7 days prior to consent that, in the opinion of the investigator, may put the patient at risk. Use of aspirin is permitted up to a maximum dose of 325 mg/day 13. Uncontrolled hypertension (blood pressure ≥ 140/90 mmHg) that is not adequately managed with medication, or change in antihypertensive regimen within 7 days prior to consent; such patients may be at increased risk during VEGF inhibitor therapy 14. Major surgery, significant trauma (e.g., bone fracture), or non-healed wounds within 3 weeks prior to consent (procedures such as catheter insertion are not considered major) 15. History of other significant cardiovascular or vascular conditions within 6 months prior to consent that, in the opinion of the investigator, may place the patient at risk during VEGF inhibitor therapy, including but not limited to hypertensive crisis, hypertensive encephalopathy, stroke, transient ischemic attack (TIA), or clinically significant peripheral vascular disease 16. Clinically significant glomerulonephritis, biopsy-proven tubulointerstitial nephritis, crystal nephropathy, or other history of renal failure 17. Known diagnosis of HIV infection (HIV testing is not mandatory) 18. History of another primary malignancy that has recently become clinically significant or currently requires active intervention 19. Evidence of brain metastasis on radiological imaging (e.g., CT or MRI) in patients presenting with symptoms suggestive of central nervous system involvement 20. History of alcohol or substance abuse disorder

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