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Patients on osimertinib with EGFR mutation exon 20, non-T790M. The position-20 trial.


- candidate number28253
- NTR NumberNTR6875
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR23-nov-2017
- Secondary IDsESR-16-12212 
- Public TitlePatients on osimertinib with EGFR mutation exon 20, non-T790M. The position-20 trial.
- Scientific TitlePatients on osimertinib with EGFR mutation exon 20, non-T790M. The position-20 trial.
- ACRONYMPosition-20 trial
- hypothesisThe study will test the hypothesis that osimertinib treatment result a partial response in 30 % of patients.
- Healt Condition(s) or Problem(s) studiedNon small cell lung cancer (NSCLC)
- Inclusion criteria1. Provision of informed consent prior to any study specific procedures
2. Patients must be ≥ 18 years of age.
3. Locally advanced or metastatic non-small cell lung cancer, not amenable to curative surgery or radiotherapy
4. Presence of an EGFR exon 20, non-T790M, mutation, deletions and/or insertion only,
5. ECOG performance score of 0-2
6. Patients must have a life expectancy ≥ 12 weeks.
7. Females should be using adequate contraceptive measures, should not be breast feeding and must have a negative pregnancy test prior to start of dosing if of child-bearing potential or must have evidence of non-child-bearing potential by fulfilling one of the following criteria two weeks before screening:
o Post-menopausal defined as aged more than 50 years and amenorrhoeic for at least 12 months following cessation of all exogenous hormonal treatments
o Women under 50 years old would be consider postmenopausal if they have been amenorrhoeic for 12 months or more following cessation of exogenous hormonal treatments and with LH and FSH levels in the post-menopausal range for the institution
o Documentation of irreversible surgical sterilisation by hysterectomy, bilateral oophorectomy or bilateral salpingectomy but not tubal ligation.
Male patients should be willing to use barrier contraception.
8. Patient is willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow up.
9. At least one lesion, not previously irradiated, that can be accurately measured at baseline as ≥ 10 mm in the longest diameter (except lymph nodes which must have short axis ≥ 15 mm) with computed tomography (CT) or magnetic resonance imaging (MRI) and which is suitable for accurate repeated measurements.
10. Brain metastasis, if asymptomatic, are allowed. In case of symptomatic brain metastasis, patient must have had radiotherapy and stable for at least 2 weeks.
- Exclusion criteria1. Presence of a T790M mutation or other tumour driven mutations, translocations or amplifications (e.g. common EGFR mutations, KRAS, BRAF V600E, ALK, ROS1)
2. Patient is unwilling and unable to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow up
3. Previous treatment with EGFR-TKI
4. Patients currently receiving (or unable to stop use prior to receiving the first dose of study treatment) medications or herbal supplements known to be potent inducers of CYP3A4 (at least 3 weeks prior). All patients must try to avoid concomitant use of any medications, herbal supplements and/or ingestion of foods with known inducer effects on CYP3A4.
5. Any unresolved toxicities from prior therapy greater than Common Terminology Criteria for Adverse Events (CTCAE) grade 1 at the time of starting study treatment with the exception of alopecia and grade 2, prior platinum-therapy related neuropathy or immune mediated pneumonitis or hepatitis previously treated with IO therapy.
6. Any evidence of severe or uncontrolled systemic diseases, including uncontrolled hypertension and active bleeding diatheses, which in the investigator's opinion makes it undesirable for the patient to participate in the trial or which would jeopardize compliance with the protocol, or active infection including hepatitis B, hepatitis C and human immunodeficiency virus (HIV). Screening for chronic conditions is not required.
7. Patients with symptomatic central nervous system (CNS) metastases who are neurologically unstable
8. Past medical history of interstitial lung disease (ILD), drug-induced ILD, radiation pneumonitis requiring steroid treatment, or any evidence of clinically active ILD
9. Inadequate bone marrow reserve or organ function as demonstrated by any of the following laboratory values:
a. absolute neutrophil count <1.5 x 109/L; platelet count <100 x 109/L; haemoglobin <90 g/L
b. Alanine aminotransferase >2.5 times the upper limit of normal (ULN) if no demonstrable liver metastases or >5 times ULN in the presence of liver metastases
c. Aspartate aminotransferase >2.5 times ULN if no demonstrable liver metastases or >5 times ULN in the presence of liver metastases
d. Total bilirubin >1.5 times ULN if no liver metastases or >3 times ULN in the presence of documented Gilbert's Syndrome (unconjugated hyperbilirubinaemia) or liver metastases
e. Creatinine >1.5 times ULN concurrent with creatinine clearance <50 ml/min (measured or calculated by Cockcroft and Gault equation)
16. Any of the following cardiac criteria:
- Mean resting corrected QT interval (QTc) > 470 msec obtained from 1 electrocardiograms, using the screening clinic ECG machine derived QTc value
- Any clinically important abnormalities in rhythm, conduction or morphology of resting ECG (e.g., complete left bundle branch block, third degree heart block, second degree heart block)
- Any factors that increase the risk of QTc prolongation or risk of arrhythmic events such as heart failure, hypokalemia, congenital long QT syndrome, family history of long QT syndrome or unexplained sudden death under 40 years of age in first degree relatives or any concomitant medication known to prolong the QT interval
17. Refractory nausea and vomiting, chronic gastrointestinal diseases, inability to swallow the formulated product or previous significant bowel resection that would preclude adequate absorption of osimertinib
18. Males and females of reproductive potential who are not using an effective method of birth control and females who are pregnant or breastfeeding or have a positive (urine or serum) pregnancy test prior to study entry
19. Judgment by the Investigator that the patient should not participate in the study if the patient is unlikely to comply with study procedures, restrictions and requirements
20. History of hypersensitivity active or inactive excipients of osimertinib or drugs with a similar chemical structure or class to osimertinib
- mec approval receivedno
- multicenter trialno
- randomisedno
- groupFactorial
- TypeSingle arm
- Studytypeintervention
- planned startdate 1-jan-2018
- planned closingdate1-jan-2019
- Target number of participants15
- InterventionsStudy with the tyrosine kinase inhibitor osimertinib 160 mg once daily in patients with EGFR exon 20, T790M-ve, mutations, deletions and/or insertions.
- Primary outcomeBest response defined by RECIST 1.1
- Secondary outcome- Progression free survival (PFS) is defined by RECIST 1.1
- Duration of response
- Overall survival
- Treatment- related adverse events (CTC-AE, Vs4.0)
- TimepointsAs part of the trial, patients will expected to attend several outpatient visits where they will undergo physical examinations, vital sign measurements, blood tests for safety assessment and monitoring for adverse events. In addition every 6 weeks until week 24 and then every 12 weeks patients will undergo radiographic assessment by CT of their tumors until disease progression or unacceptable toxicity. The frequency of visits and number of procedures carried out during this trial would typically be considered as standard of care. These procedures are conducted by medically trained professionals and every effort will be made to minimise any risks or discomfort to the patient.
- Trial web site
- statusplanned
- CONTACT FOR PUBLIC QUERIESDr. A.J. Wekken, van der
- CONTACT for SCIENTIFIC QUERIESDr. A.J. Wekken, van der
- Sponsor/Initiator University Medical Center Groningen (UMCG)
- Funding
(Source(s) of Monetary or Material Support)
AstraZeneca UK Ltd
- Publications
- Brief summaryA single arm phase II trial, patients with EGFR exon 20 mutations, deletions and/or insertions, which areT790M-ve, with advanced stage non-small cell lung carcinoma will be treated with osimertinib. Based on the safety, pharmacokinetic and preliminary efficacy data, 160 mg QD, is selected as the recommended phase II dose. Patients will be pre-treated with chemotherapy or immunotherapy. Treatment efficacy will be assessed according to RECIST 1.1 criteria.
- Main changes (audit trail)
- RECORD23-nov-2017 - 16-dec-2017


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