Lung cancer trial aims to uncover secrets of drug resistance

NCT ID NCT03969823

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at why some lung cancers stop responding to the drug osimertinib. Researchers will analyze the genetic makeup of tumors from 148 patients with advanced EGFR-mutant lung cancer who take osimertinib as their first treatment. The goal is to identify resistance mechanisms and track safety and survival outcomes.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Osimertinib (Tagrisso)
What this could lead to
If successful, this could reveal new ways to overcome drug resistance, potentially leading to better treatments for EGFR-mutant lung cancer.
What could go wrong
This is an early-stage, single-arm study focused on understanding resistance, not proving a new treatment works. Results may not lead to immediate clinical changes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Borame Medical Center

    Seoul, South Korea

  • Seoul National University Bundang Hospital

    Seongnam, South Korea

  • Seoul National University Hospital

    Seoul, South Korea

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