| Unique ID issued by UMIN | UMIN000063214 |
|---|---|
| Receipt number | R000072325 |
| Scientific Title | Co-occurring genomic alterations and outcomes of ALK inhibitor therapy in ALK-positive non-small cell lung cancer |
| Date of disclosure of the study information | 2026/10/08 |
| Last modified on | 2026/10/08 01:09:10 |
Co-occurring genomic alterations and outcomes of ALK inhibitor therapy in ALK-positive non-small cell lung cancer
Co-occurring genomic alterations and outcomes of ALK inhibitor therapy in ALK-positive non-small cell lung cancer
Co-occurring genomic alterations and outcomes of ALK inhibitor therapy in ALK-positive non-small cell lung cancer
Co-occurring genomic alterations and outcomes of ALK inhibitor therapy in ALK-positive non-small cell lung cancer
| Japan |
ALK-rearranged Non-small cell lung cancer
| Pneumology |
Malignancy
YES
To describe the distribution of pretreatment co-occurring genomic alterations in ALK-positive non-small cell lung cancer and to exploratorily evaluate the associations of TP53, RB1, and MTAP alterations with progression-free survival and overall survival after first-line ALK inhibitor therapy. An exploratory composite genomic group based on these alterations will also be evaluated, and supportive external analyses will be performed, primarily focusing on RB1, using available clinico-genomic datasets.
Others
To exploratorily evaluate the associations of TP53, RB1, and MTAP alterations with overall survival after first-line ALK inhibitor therapy. Additional analyses will assess outcomes according to combined TP53/RB1 status, EML4-ALK fusion variant, and the type of first-line ALK inhibitor, as well as the co-occurrence of MTAP loss/deletion with CDKN2A/CDKN2B alterations. Exploratory analyses will also evaluate the prognostic relevance of a composite genomic group based on the major candidate alterations, and supportive analyses using available external clinico-genomic datasets will assess the associations of RB1 and TP53 status with survival outcomes.
PFS according to co-occurring genomic alteration status
Overall survival (OS) according to the presence or absence of each TP53, RB1, and MTAP alteration.
Frequency and distribution of co-occurring genomic alterations detected by OCA Plus.
PFS and OS according to combined TP53/RB1 status.
PFS and OS according to EML4-ALK fusion variant.
PFS and OS according to the first-line ALK inhibitor used.
Co-occurrence of MTAP loss/deletion with CDKN2A/CDKN2B alterations.
OS according to RB1 and TP53 status in an external clinico-genomic dataset.
Exploratory associations of a composite genomic group based on the major candidate alterations with PFS and OS.
Observational
| Not applicable |
| Not applicable |
Male and Female
1. Patients with pathologically or cytologically confirmed non-small cell lung cancer
2. Patients with confirmed ALK rearrangement
3. Patients treated at the study institution between March 2012 and May 2025
4. Patients with available genomic data obtained by comprehensive genomic profiling
5. Patients with available clinical information required to evaluate ALK inhibitor treatment and clinical outcomes
1. Patients with insufficient genomic information for evaluation of the association with treatment outcomes
2. Patients for whom the clinical course after ALK inhibitor therapy or survival information cannot be adequately evaluated
3. Patients considered inappropriate for analysis by the principal investigator
30
| 1st name | Kentaro |
| Middle name | |
| Last name | Ito |
Saiseikai Matsusaka Municipal Hospital
Respiratory Center
5150073
1550, Tonomachi, Matsusaka city, Mie, Japan
0598231515
kentarou_i_0214@yahoo.co.jp
| 1st name | Kentaro |
| Middle name | |
| Last name | Ito |
Saiszeikai Matsusaka Municipal Hospital
Respiratory Center
5150073
1550, Tonomachi , Matsusaka City, Mie , Japan
0598231515
kentarou_i_0214@yahoo.co.jp
Saiseikai Matsusaka Municipal Hospital
none
Self funding
Japan
Saiseikai Matsusaka Municipal Hospital
1550, Tonomachi, Matsusaka city, Mie, Japan
08045407616
kentarou_i_0214@yahoo.co.jp
NO
| 2026 | Year | 10 | Month | 08 | Day |
Unpublished
30
No longer recruiting
| 2026 | Year | 08 | Month | 15 | Day |
| 2026 | Year | 08 | Month | 21 | Day |
| 2026 | Year | 08 | Month | 21 | Day |
| 2026 | Year | 08 | Month | 31 | Day |
This is a single-center retrospective observational study of patients with ALK-rearranged non-small cell lung cancer. The study will exploratively evaluate the association between co-occurring genomic alterations other than ALK identified by comprehensive genomic profiling and clinical outcomes of ALK inhibitor therapy. In particular, co-occurring alterations involving TP53, RB1, and MTAP will be evaluated in relation to progression-free survival (PFS) and overall survival (OS).
Eligible patients treated at the study institution during the predefined study period will be retrospectively identified. No random or case-control sampling will be performed, and consecutively identifiable eligible patients with evaluable data will be included. No additional examination, treatment, or intervention will be performed for research purposes.
Supportive analyses using available external clinical genomic datasets will also be conducted to evaluate the association between major candidate genomic alterations and prognosis.
| 2026 | Year | 10 | Month | 08 | Day |
| 2026 | Year | 10 | Month | 08 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072325