Skip to content

Pathological Response After Neoadjuvant Treatment on NSCLC

Retrospective Observational Study of Resectable Stage IIIA Non-small Cell Lung Cancer Patients: Pathological Response After Neoadjuvant Treatment and Patient Outcomes

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05167487
Acronym
PLANET
Enrollment
150
Registered
2021-12-22
Start date
2021-12-13
Completion date
2028-12-01
Last updated
2026-02-06

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

Conditions

Stage IIIA Non-small Cell Lung Cancer

Keywords

Neoadjuvant Treatment, Observational study, Resectable IIIA patients, Non small cell lung cancer, Pathological response

Brief summary

This is a non-interventional, observational, multicenter and retrospective study. Being limited to the collection of patient data already filled in the Tumor Thoracic Registry data base and the data from stage IIIA clinical trials case report forms.

Detailed description

This is a non-interventional, observational, multicenter and retrospective study that will not under any circumstances interfere in the physician's normal clinical practice. Being limited to the collection of patient data already filled in the Tumor Thoracic Registry (TTR) data base and the data from stage IIIA clinical trials case report forms, it does not entail any diagnostic or therapeutic procedure outside of normal clinical practice. The primary objective is to assess pathological response after neoadjuvant treatment as a subrogate endpoint for overall survival and disease-free survival in resectable stage IIIA non-small cell lung cancer patients. It is estimated that around 15-20 Spanish sites are enrolling patients with these characteristics in the TTR or in the stage IIIA clinical trials of the Fundación GECP. Pathologists and physician's of these sites will be invited to participate in the PLANET study as all cases will be clinical-pathologically re-evaluated to reach the study objectives. Each pathologist will re-evaluate the specimens from the selected patients under common criteria.The sample size would be 150 patients enrolled in the study.

Interventions

DRUGCisplatin

Route of administration: Intravenous infusion. Neoadjuvant chemotherapy is often given 2 to 4 months before surgery.

DRUGCarboplatin

Route of administration: Intravenous infusion. Neoadjuvant chemotherapy is often given 2 to 4 months before surgery.

Sponsors

Fundación GECP
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with resectable stage IIIA disease (according to American Joint Committee on Cancer \[AJCC\] lung cancer edition 7 or 8) who were included in the Tumor Thoracic Registry data base and in stage IIIA clinical trials which the sponsor is Fundación GECP. * Patients with histologically N2 involvement confirmed * Patients diagnosed as stage IIIA from 2010 and 2017 * Patients who have received neoadjuvant platinum-based treatment and surgery * Age ≥ 18 years at time of study entry * PET /TC at diagnosis

Exclusion criteria

* Patients who received chemoradiotherapy neoadjuvant treatment * Patients who were not resected after neoadjuvant treatment * Patients who were diagnosed after June 2017

Design outcomes

Primary

MeasureTime frameDescription
To assess pathological response after neoadjuvant treatment as a subrogate endpoint for overall survival and disease-free survival in resectable stage IIIA non-small cell lung cancer patients.From the end of neoadjuvant treatment until the last follow up or death, assessed up to 45 monthsPathological response will be assessed as complete pathological response, major pathological response (defined as ≤10% of viable tumor cells) and incomplete pathological response.

Secondary

MeasureTime frameDescription
To describe the percentage of residual viable tumor in this population of patients under common criteriaFrom the end of neoadjuvant treatment until the last follow up or death,assessed up to 45 monthsA) No response or more than 70% of viable tumor: Lymph node major pathological response negative (LN-MPR)- B) ≤70% of viable tumor cells: Lymph node major pathological response positive (LN-MPR)+ C) No evidence of any viable tumor (including primary tumor): Complete pathological response
To describe the histopathological changes within tumor bed associated to tumor responseFrom the end of neoadjuvant treatment until the last follow up or death, assessed up to 45 monthsTypes of histopathological changes within tumor bed: fibrosis, lymphoid aggregates and others
To correlate pathological response and post-surgical complicationsFrom the end of neoadjuvant treatment until the last follow up or death, assessed up to 45 monthsPathological response will be assessed as complete pathological response, major pathological response (defined as ≤10% of viable tumor cells) and incomplete pathological response.
To describe the relation between nodal downstaging after neoadjuvant treatment and overall survivalFrom the end of neoadjuvant treatment until the last follow up or death, assessed up to 45 monthsDownstaging after surgery is a reduction in the stage of a cancer. Overall Survival defined as the length of time from either the date of diagnosis or the start of the treatment that patients diagnosed with the disease are still alive.

Countries

Spain

Contacts

CONTACTEva Pereira
gecp@gecp.org+34934302006
STUDY_CHAIRMariano Provencio, MD

President of Grupo Español de Cáncer de Pulmón

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 7, 2026