The effect of the primary tumor site on survival outcomes and recurrence patterns: a retrospective observational study of patients with stage III non-small cell lung cancer (PRIMARY study)

The effect of the primary tumor site on survival outcomes and recurrence patterns: a retrospective observational study of patients with stage III non-small cell lung cancer (PRIMARY study) - Relationship between the primary lesion and prognosis in stage III non-small cell lung cancer

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000056985

Enrollment

200

Registered

2025-02-10

Start date

2025-02-10

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-small cell lung cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Stage III non-small cell lung cancer patients who began definitive concurrent chemoradiotherapy at a research participating facility from July 2018 to November 2024

Exclusion criteria

Exclusion criteria: Patients who are judged by the principal investigator (or sub-investigator) at each facility to be unsuitable as subjects, such as those for whom the necessary clinical information for analysis cannot be obtained.

Design outcomes

Primary

Measure	Time frame
Overall survival from the start date of standard chemoradiotherapy	—

Secondary

Measure	Time frame
Progression-free survival starting from the date of commencement of standard chemoradiotherapy, response rate, site of recurrence in cases of recurrence, and radiation irradiation method when performing definitive chemoradiotherapy,	—

Countries

Japan

Contacts

Public ContactChikashi Iwasaki

Tohoku University Hospital Respiratory Medicine

chikashi.iwasaki.e3@tohoku.ac.jp022-717-8539

Outcome results