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Related Experiment Video

Updated: Jan 16, 2026

Anticancer Efficacy of Photodynamic Therapy with Lung Cancer-Targeted Nanoparticles
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[Photodynamic Therapy for Peripheral Lung Cancer].

Jitsuo Usuda1

  • 1Department of Thoracic Surgery, Nippon Medical School, Tokyo, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|September 25, 2025
PubMed
Summary
This summary is machine-generated.

Photodynamic therapy (PDT) significantly improved progression-free survival for peripheral lung cancer patients compared to best supportive care. This minimally invasive treatment is safe and effective for preserving lung function and quality of life.

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Area of Science:

  • Oncology
  • Pulmonology
  • Medical Technology

Background:

  • Photodynamic therapy (PDT) is established for central lung cancers but investigational for peripheral types.
  • Minimally invasive ablative therapies are needed for peripheral lung cancer.
  • Bronchoscopic ablative modalities are under investigation for peripheral lung cancer.

Purpose of the Study:

  • To assess the safety and efficacy of PDT for peripheral lung cancer using a novel laser probe.
  • To establish PDT as a novel bronchoscopic treatment for peripheral lung cancer.
  • To evaluate PDT's impact on progression-free survival (PFS) and overall survival (OS).

Main Methods:

  • A multicenter randomized controlled trial (RCT) with a 2:1 ratio of PDT to best supportive care (BSC).
  • Enrolled patients with non-small cell lung cancer (NSCLC), tumor diameter ≤ 25 mm, ineligible for surgery/radiotherapy.
  • Salvage PDT (sPDT) was permitted for BSC patients with disease progression and tumor diameter ≤ 30 mm.

Main Results:

  • Median PFS was 12.7 months for PDT vs. 4.1 months for BSC (p=0.0172), showing significant prolongation.
  • Serious adverse events occurred in 5.9% of the PDT group and 0% of the sPDT group.
  • PDT demonstrated efficacy in preserving lung function and quality of life.

Conclusions:

  • PDT significantly prolongs PFS in patients with peripheral lung cancer.
  • PDT is a safe and effective bronchoscopic treatment for peripheral lung cancer.
  • PDT shows potential for preserving lung function and maintaining quality of life in lung cancer patients.