Dacomitinib in Combination with chemotherapy is effective in lung adenocarcinoma with rare EGFR L747P mutation and bone metastases: a case report - Summary - MDSpire

Dacomitinib in Combination with chemotherapy is effective in lung adenocarcinoma with rare EGFR L747P mutation and bone metastases: a case report

  • By

  • Weixin Su

  • Haiyan Deng

  • Zhi Yang

  • Anjian Gao

  • Bo Gao

  • May 5, 2026

  • 0 min

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Objective:

To investigate the therapeutic effects of dacomitinib in combination with chemotherapy for lung adenocarcinoma with the rare EGFR L747P mutation and bone metastases.

Key Findings:
  • The patient achieved a progression-free survival (PFS) of 16 months.
  • Dacomitinib combined with chemotherapy resulted in a partial response (PR) with decreased tumor markers and regression of lesions.
  • Adverse events included manageable skin rash and paronychia.
Interpretation:

Dacomitinib may provide sustained clinical benefit in patients with rare EGFR mutations, specifically L747P, and associated bone metastases.

Limitations:
  • The study is based on a single case report, limiting generalizability.
  • Further research is needed to explore the underlying molecular mechanisms and broader efficacy.
Conclusion:

Dacomitinib combined with chemotherapy shows promise for treating lung adenocarcinoma with the rare EGFR L747P mutation and bone metastases.

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