Understanding the ZENITH Trial Results
The ZENITH trial studied a drug called poziotinib for patients with a specific type of lung cancer known as EGFR exon 20-insertion non-small cell lung cancer (NSCLC). Here are the key findings:
What Worked?
- Poziotinib showed some effectiveness, with about 14.8% of patients experiencing a reduction in their tumor size.
- Patients with near-loop insertions had better results than those with far-loop insertions. They had a greater decrease in tumor size and lived longer without their cancer getting worse.
What Didn’t Work?
- The overall goal of the trial was not fully met because the response rate was lower than expected.
- Mobocertinib, another treatment, worked similarly for both near-loop and far-loop insertions, showing no significant differences between the two groups.
How Does This Help Patients or Clinics?
- Doctors can better understand which patients may benefit more from poziotinib based on the type of insertion in their cancer.
- This knowledge can help tailor treatments for better outcomes.
Real-World Opportunities
- Clinics can start using genetic testing to determine the insertion type in patients’ tumors.
- Doctors can consider prescribing poziotinib for patients with near-loop insertions.
Measurable Outcomes
- Track the percentage of patients experiencing tumor size reduction.
- Monitor how long patients live without their cancer worsening (progression-free survival).
AI Tools
- AI can help analyze genetic data to classify tumors effectively.
- AI tools might assist in predicting which patients will respond best to specific treatments.
Step-by-Step Plan for Clinics
- Start by educating staff about the ZENITH trial findings and the importance of tumor insertion type.
- Implement genetic testing for patients diagnosed with EGFR exon 20-insertion NSCLC.
- Begin using poziotinib for patients with near-loop insertions while monitoring their progress.
- Gradually collect data on patient outcomes and adjust treatment plans based on findings.
- Share results with the medical community to improve future patient care.
For more detailed information on the research, you can read the full article here.





























