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NCT07045610

Primary Resistance Mechanisms of ALK TKIs

Not yet recruiting Last updated 1 July 2025
What this trial tests

trial testing re-biopsy tumor with primary ALK tKI resistance for NGS in ALK-positive Advanced NSCLC Patients in 20 participants. Not yet recruiting.

Timeline
1 July 2025
Primary endpoint
1 July 2027
1 July 2028

Quick facts

Lead sponsorNational Taiwan University Hospital
StatusNot yet recruiting
Study typeOBSERVATIONAL
Enrollment20
Start date1 July 2025
Primary completion1 July 2027
Estimated completion1 July 2028
Sites1 location across Taiwan

Drugs / interventions tested

Conditions studied

Sponsor

National Taiwan University Hospital

Who can join

18 and older, any sex, with ALK-positive Advanced NSCLC Patients or Primary Resistance. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Anaplastic lymphoma kinase (ALK) gene rearrangement is a known oncogenic driver in non-small cell lung cancer (NSCLC). ALK tyrosine kinase inhibitors (TKIs) have been clearly shown to produce excellent therapeutic effects and prolong survival in patients with this gene mutation. According to current treatment guidelines, ALK inhibitors are the first-line treatment of choice for ALK-positive advanced NSCLC patients. However, although ALK TKIs are very effective, there is still a small group of patients who do not achieve good treatment outcomes, developing resistance and tumor progression within 3 to 6 months of initial ALK TKI use. This is called primary resistance. Intrinsic resistance to ALK inhibition occurs when the best clinical response after first-generation and second/third-generation TKI treatment is disease progression. Approximately 5-7% of cases after crizotinib treatment, 9% after ceritinib treatment, and 25% after lorlatinib treatment show no response to treatment, and no specific ALK mutation has been found to explain the occurrence of primary resistance. Currently, many different resistance mechanisms are known, some of which are still ALK-related, while others are ALK-independent alternative survival pathways. However, most research focuses on acquired resistance, with very few studies on primary resistance, only a few case reports. Therefore, this study aims to explore the primary ALK TKI resistance mechanisms. The investigators plan to explore the incidence and mechanisms of primary ALK TKI resistance in ALK-positive advanced NSCLC patients who develop primary resistance or rapid progression (within 3-6 months) during ALK inhibitor treatment by re-obtaining tumor samples for genetic analysis.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Trials by the same sponsor.

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