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Spots Global Cancer Trial Database for Second-line Pharmacotherapy Patterns and Outcomes of Advanced Gastrointestinal Stromal Tumor: A Real-world Study

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Trial Identification

Brief Title: Second-line Pharmacotherapy Patterns and Outcomes of Advanced Gastrointestinal Stromal Tumor: A Real-world Study

Official Title: Second-line Pharmacotherapy Patterns and Outcomes of Advanced Gastrointestinal Stromal Tumor: A Real-world Study

Study ID: NCT05440357

Interventions

Study Description

Brief Summary: This is a prospective, multicenter, observational real-world study to explore the second-line Pharmacotherapy patterns and clinical outcomes in GIST patients who progressed on or were intolerant to first-line anticancer treatment.

Detailed Description: INTRODUCTION AND RATIONALE Gastrointestinal stromal tumors (GIST) are thought to develop from the interstitial cells of Cajal or their stem cell precursors. They are the most common mesenchymal tumors occurring in the gastrointestinal (GI) tract. The annual incidence of GIST is about 1/100,000 \~ 2/100,000 globally. Previous data showed that the incidence of GIST was 0.43 per 100,000 in Shanxi Province and 2.11per 100,000 in Shanghai in China. Surgery is the primary therapy for patients with localized resectable disease. GIST that is metastatic or locally advanced but unresectable is treated with tyrosine kinase inhibitors (TKIs) that target KIT or PDGFRA. Imatinib is recommended as the first-line standard treatment for metastatic or unresectable advanced GIST. Most patients with initial clinical benefits from Imatinib eventually progress. However, approximately 10% -14% of GIST is primarily resistant to imatinib and 90% of patients will develop secondary drug resistance within 4 years with imatinib treatment. For patients who failed imatinib first-line treatment, Sunitinib is the standard second-line therapy but not the optimal treatment regimen in clinical practice. Other TKIs targeting KIT is also used in the second-line setting. A phase 3 study to evaluate sunitinib's efficacy in advanced GIST compared with placebo, showed that the mPFS was 5.6 months \[2\], while a phase I study of ripretinib demonstrated that the mPFS was10.7months as a second-line treatment in advanced GIST\[4\]. Another single-arm second-line treatment study of dasatinib also suggested that dasatinib had a tumor suppression effect in the treatment of advanced GIST with imatinib treatment failure, with mPFS of 2.9 months, and mOS of 19 months, especially for patients with SRC overexpression and PDGFRA D842V mutation \[5\]. There is a lack of real-world data on advanced GIST patients who have progressed on first-line treatment with different treatment patterns, and the benefits are also unknown. The investigators initiate this prospective, observational, real-world study that aims to explore the second-line treatment patterns and the clinical outcomes in GIST patients who progressed on or were intolerant to first-line treatment in real-world clinical practice. STUDY PROCEDURE Approximately 100 patients will be enrolled. According to the inclusion criteria, patients will receive second-line treatment that was recommended by the current guidelines, including sunitinib, imatinib dose-escalation, repritinib, dasatinib, and other drugs based on the physician's judgment. Data will be collected based on a real-world setting. SCREENING PERIOD During the screening period, the informed consent form will be signed before enrolling. Radiologic imaging and dermatologic examination should be performed within 30 days before the first day of enrollment. Baseline information, including medical history, previous treatment pattern, ECOG PS score, EORTC-QLQ-C30 scale, molecular detection, and any laboratory test should be recorded. OBSERVATION PERIOD Patients will be enrolled in the study after confirmation of all eligibility criteria. The treatment patterns will be decided by the physician. Study visits during the Treatment Period will occur every 2 months. Regular physical examination, vital signs, imaging examination, tumor assessment(PFS and ORR), EORTC-QLQ-C30, 2. ECOG PS score, the dose of drug and dose Administration, and drug-related adverse events will be recorded during each visit. FELLOW-UP PERIOD Patients will be contacted by phone call for the Safety Follow-up Visit 30 days after the last visit of study. Any AEs, medications, including anticancer treatments, and survival status will be followed during this period.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Chongqing University Cancer Hospital, Chongqing, Chongqing, China

Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong, China

Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China

The first affiliated hospital,Sun yat-sen university, Guangzhou, Guangdong, China

Peking University Shenzhen Hospital, Shenzhen, Guangdong, China

Hainan Cancer Hospital, Haikou, Hannan, China

Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China

The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China

Contact Details

Name: zhang xinhua, PhD

Affiliation: First affiliated hosptial,Sun Yat-sen university

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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