Unique ID issued by UMIN | UMIN000027233 |
---|---|
Receipt number | R000031202 |
Scientific Title | A prospective observational study of osimertinib as predictive marker against patients with EGFR T790M-positive NSCLC. |
Date of disclosure of the study information | 2017/05/06 |
Last modified on | 2024/05/07 09:28:06 |
A prospective observational study of osimertinib as predictive marker against patients with EGFR T790M-positive NSCLC.
Osimertinib as predictive marker in T790M-positive NSCLC
A prospective observational study of osimertinib as predictive marker against patients with EGFR T790M-positive NSCLC.
Osimertinib as predictive marker in T790M-positive NSCLC
Japan |
Lung Cancer
Pneumology |
Malignancy
YES
To predict the efficacy and therapeutic resistance of Osimertinib by the quantitative amount of T790M and C797S.
To explore the possibility of PIK3CA, BRAF, beta-catenin, MET and HER2 as a chemoresistant marker of Osimertinib
using blood and biopsy sample.
Efficacy
Primary endpoint:To predict the efficacy of osimertinib according to quantitative amount of T790M expression.
Secandary endpoint:To predict the efficacy of osimertinib according to quantitative amount of C797S.
Observational
20 | years-old | <= |
Not applicable |
Male and Female
1) Pathologically confirmation of non small cell lung cancer
2) EGFR gene mutation with T790M has been examined
3) Administration of osimertinib is planned or ongoing
4) Aged 20 or more
5) Expected survival over 12 weeks
6) Adequate organ functions
7) Written informed consent
1)Active double cancer
2)Interstitial pneumonitis on chest CT
3)Symptomatic brain metastases
4)Uncontrollable pleural effusion or pericardial effusion
5)Active infectious disease
6)No allogeneic bone marrow transplant
45
1st name | |
Middle name | |
Last name | Kyoichi Kaira |
Gunma University Hospital
Innovative Medical Center
3-39-15, Showa-machi, Maebashi, Gunma, Japan
027-220-8222
kkaira1970@yahoo.co.jp
1st name | |
Middle name | |
Last name | Kyoichi Kaira |
Gunma University Hospital
Innovative Medical Center
3-39-15, Showa-machi, Maebashi, Gunma, Japan
027-220-8222
kkaira1970@yahoo.co.jp
Gunma University
AstraZeneca company
Profit organization
NO
2017 | Year | 05 | Month | 06 | Day |
Unpublished
Completed
2017 | Year | 04 | Month | 25 | Day |
2017 | Year | 04 | Month | 15 | Day |
2017 | Year | 05 | Month | 01 | Day |
2022 | Year | 03 | Month | 05 | Day |
Approximately 20 mL of blood samples will be collected at the following three time points: before treatment with
osimertinib, at one month of treatment, and at the time of recurrence. The number of copies of T790M, C797S, and
sensitive mutations (Del19 or L858R) in these blood samples will be determined using a digital PCR system (Bio-Rad
Laboratories, Inc.) for a quantitative assessment. Changes in the quantified number of copies of T790M and C797S after
the start of treatment with osimertinib will be assessed in terms of response rate and survival time (progression-free
survival and overall survival) for an exploratory investigation of the potential of these mutations as treatment predictive
biomarkers.
Moreover, the effect of the number of copies of T790M before treatment on prognosis after treatment, i.e., the role of the
number of copies of T790M as a prognostic factor, will be assessed, and any relationship between percent reductions in
the number of copies themselves and the therapeutic effect of osimertinib will be clarified. As factors affecting this
therapeutic effect, the expression levels of PIK3CA, BRAF, EMT, MET, and HER2, possible causative factors for the
resistance to first- and second-generation EGFR TKIs, will be assessed through analysis of gene mutations and
amplifications in DNA samples extracted from re-biopsy tumor specimens before treatment, to determine a correlation
between the therapeutic effect of osimertinib and the number of copies of the T790M, C797S, and sensitive mutations,
and other relationships.
2017 | Year | 05 | Month | 03 | Day |
2024 | Year | 05 | Month | 07 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000031202