Lenvatinib After Progression on Imatinib, Sunitinib, and Regorafenib for GIST Patients
LONGIST
A Single-center, Single-arm Phase II Study to Evaluate the Efficacy and Safety of Lenvatinib in Patients With Advanced Gastrointestinal Stromal Tumors (GIST) Who Have Failed Treatment With Imatinib, Sunitinib, and Regorafenib
1 other identifier
interventional
48
1 country
1
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1
Started Sep 2025
Typical duration for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 24, 2025
CompletedFirst Posted
Study publicly available on registry
July 31, 2025
CompletedStudy Start
First participant enrolled
September 8, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2027
July 31, 2025
July 1, 2025
2.3 years
July 24, 2025
July 24, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
DCR(disease control rate) at 12 weeks
To evaluate the disease control rate (DCR; defined as the sum of partial responses and stable disease) at 12 Weeks
at 12 weeks
Study Arms (1)
Lenvatinib treatment
EXPERIMENTALInterventions
Lenvatinib will be administered orally once daily at a dose of 12 mg (for patients weighing ≥ 60 kg) or 8 mg (for patients weighing \< 60 kg). Each treatment cycle consists of 4 weeks (i.e., 28 days).
Eligibility Criteria
You may qualify if:
- Age ≥ 20 years at the time of providing written informed consent.
- 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.
- 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:
- Increase in tumor size by ≥ 20% per mRECIST version 1.1
- Emergence of unequivocal new lesions (excluding newly developed small cystic liver lesions within 6 months after initiation of TKI treatment)
- Appearance of new solid nodules within cystic masses
- Increase in the size of existing solid nodules within cystic masses (\>20%)
- Intolerance to prior TKIs is defined as:
- 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)
- 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
- ECOG performance status of 0-2.
- All toxicities from previous treatments must have recovered to Grade 0 or 1 as per NCI-CTCAE version 5.0.
- At least one measurable lesion as defined by mRECIST version 1.1.
- +10 more criteria
You may not qualify if:
- Women of childbearing potential who are pregnant or breastfeeding
- 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
- All participants (both men and women) must use barrier contraception during the treatment period and for at least 1 month after the final dose
- 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)
- 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
- Uncontrolled active infection
- Diabetes mellitus with clinically significant signs of peripheral vascular disease
- Acute or chronic liver disease, or any chronic hepatic disorder (patients with stable chronic hepatitis B are eligible)
- Uncontrolled gastrointestinal toxicities greater than Grade 2 according to NCI-CTCAE (e.g., nausea, diarrhea, vomiting)
- 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
- 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
- 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
- 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
- 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)
- 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
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Asan Medical Center
Seoul, 05505, South Korea
MeSH Terms
Interventions
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
July 24, 2025
First Posted
July 31, 2025
Study Start
September 8, 2025
Primary Completion (Estimated)
December 31, 2027
Study Completion (Estimated)
December 31, 2027
Last Updated
July 31, 2025
Record last verified: 2025-07
Data Sharing
- IPD Sharing
- Will not share