Osimertinib Plus Savolitinib in EGFRm+/MET+ NSCLC Following Prior Osimertinib



Status:Recruiting
Conditions:Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:3/10/2019
Start Date:January 9, 2019
End Date:January 5, 2022
Contact:AstraZeneca Clinical Study Information Center
Email:information.center@astrazeneca.com
Phone:1-877-240-9479

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A Phase II, Single Arm Study Assessing Efficacy of Osimertinib With Savolitinib in Patients With EGFRm+ MET+, Locally Advanced or Metastatic Non Small Cell Lung Cancer Who Have Progressed Following Osimertinib Treatment (SAVANNAH Study)

This study (the SAVANNAH study) will investigate the efficacy of osimertinib in combination
with savolitinib in patients with EGFRm+ and MET+, locally advanced or metastatic NSCLC who
have progressed following treatment with osimertinib.

The combination of osimertinib with savolitinib in this study (the SAVANNAH study) will
explore if the combination will overcome MET-amplification as a mechanism of resistance. The
SAVANNAH study will investigate the efficacy of osimertinib in combination with savolitinib
in patients with EGFRm+ and MET+, locally advanced or metastatic NSCLC who have progressed
following treatment with osimertinib.

Eligible patients will be those with histologically or cytologically confirmed diagnosis of
EGFRm NSCLC that is locally advanced or metastatic and is not amenable to further surgery or
radiotherapy with curative intent. The disease must have progressed following treatment with
osimertinib. Patients must have confirmation of MET+ tumour by central FISH, central IHC or
certain local NGS testing (requirements summarised in the main body of the protocol and fully
explained in the Central Laboratory Manual). In patients centrally confirmed as MET+, MET+ is
defined as a) high expression of MET (by IHC) and/or b) increased MET gene copy number (by
FISH). Patients must not have received prior or current treatment with savolitinib or another
MET inhibitor.

All patients confirmed as eligible will begin treatment on Day 1 with
osimertinib+savolitinib. Treatment will continue od in 28 day cycles until either objective
disease progression, unacceptable toxicity occurs, consent is withdrawn or another
discontinuation criterion is met.

Inclusion criteria:

- Patients must be ≥18 years of age (≥20 years of age in Japan). All genders are
permitted.

- Histologically or cytologically confirmed locally advanced or metastatic EGFRm+ NSCLC
harbouring an EGFR mutation known to be associated with EGFR TKI sensitivity
(including either exon 19 deletion and/or L858R) which is not amenable to curative
therapy.

- Documented radiologic disease progression following treatment with osimertinib
(osimertinib does not need to be the most recent therapy).

- MET amplification/high expression as determined by FISH (central), IHC (central) or
NGS (local) testing on tumour tissue collected following progression on prior
osimertinib treatment.

- Available tissue from a recent biopsy for MET analysis or willingness to collect
additional tissue for central testing.

- At least 1 lesion, not previously irradiated, not biopsied during the screening
period, 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 CT or MRI which is
suitable for accurate repeated measurements.

- Received at least 1 but no more than 3 prior lines of therapy (may include
investigational therapy) in the locally advanced/metastatic setting.

- No more than one prior line of chemotherapy regimen

- A chemotherapy regimen including a programmed cell death-1 (PD1) or a PD1 ligand 1 (PD
L1) agent is acceptable, provided it was not the most recent line of therapy.

- No more than 2 prior lines of therapy containing EGFR TKI are acceptable

- Adequate haematological function defined as:

- Absolute neutrophil count ≥1500/μL

- Haemoglobin ≥9 g/dL (no transfusion in the past 2 weeks)

- Platelets ≥100,000/μL (no transfusion in the past 10 days)

- Adequate liver function

- ALT, AST ≤2.5 x ULN with total bilirubin ≤ ULN OR

- Total bilirubin >ULN to ≤1.5x ULN with ALT and AST ≤ ULN

- Adequate renal function - creatinine <1.5 times the institutional ULN OR a glomerular
filtration rate ≥50 mL/min. Confirmation of creatinine clearance is only required when
creatinine is >1.5 times ULN.

- Adequate coagulation parameters - INR <1.5 x ULN and activated partial thromboplastin
time <1.5 x ULN unless patients are receiving therapeutic anti coagulation which
affects these parameters.

- Patients with known tumour thrombus or deep vein thrombosis are eligible if clinically
stable on low molecular weight heparin for ≥2 weeks.

- ECOG/WHO performance status of 0 or 1 with no deterioration over the previous 2 weeks
and a minimum life expectancy of 12 weeks.

- Females of childbearing potential must be using highly effective contraceptive
measures and have a negative pregnancy test.

- Males with a female partner of childbearing potential should be willing to use barrier
contraception during the study and for 6 months following discontinuation of study
drug.

Exclusion criteria:

- Unresolved toxicities from any 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.

- As judged by the investigator, active gastrointestinal disease or other condition that
will interfere significantly with the absorption, distribution, metabolism, or
excretion of oral therapy (eg, ulcerative disease, uncontrolled nausea, vomiting,
diarrhoea Grade ≥2, malabsorption syndrome or previous significant bowel resection).

- Any of the following cardiac diseases currently or within the last 6 months:

Unstable angina pectoris Congestive heart failure (New York Heart Association [NYHA] ≥Grade
2) Acute myocardial infarction Stroke or transient ischemic attack Uncontrolled
hypertension (BP ≥150/95 mmHg despite medical therapy). Mean resting correct QT interval
(QTcF) >470 msec for women and >450 msec for men at Screening, obtained from 3 ECGs using
the screening clinic ECG machine derived QTcF value.

Any factors that may increase the risk of QTcF prolongation or risk of arrhythmic events
such as heart failure, chronic hypokalaemia not correctable with supplements, congenital or
familial long QT syndrome, family history of unexplained sudden death under 40 years of age
in first-degree relatives or any concomitant medication known to prolong the QT interval
and cause Torsade de Pointes.

Any clinically important abnormalities in rhythm, conduction or morphology of resting ECGs,
eg, complete left bundle branch block, third degree heart block, second degree heart block,
P-R interval >250 msec.

Acute coronary syndrome

- Wide field radiotherapy (including therapeutic radioisotopes such as strontium 89)
administered ≤28 days or limited field radiation for palliation ≤7 days prior to
starting study drug or has not recovered from side effects of such therapy.

- Major surgical procedures ≤28 days of beginning study drug or minor surgical
procedures ≤7 days

- Evidence of severe or uncontrolled systemic diseases, including renal transplant,
active bleeding diatheses or uncontrolled hypertension, which in the investigator's
opinion makes it undesirable for the patient to participate

- Active hepatitis B or C

- Known serious active infection e.g. tuberculosis or human immunodeficiency virus

- Presence of other active cancers, or history of treatment for invasive cancer, within
the last 5 years. Patients with Stage I cancer who have received definitive local
treatment at least 3 years previously, and are considered unlikely to recur are
eligible. All patients with previously treated in situ carcinoma (ie, non-invasive)
are eligible, as are patients with history of non-melanoma skin cancer.

- Spinal cord compression or brain metastases unless asymptomatic, stable and not
requiring steroids for at least 2 weeks prior to start of study treatment.

- Past medical history of interstitial lung disease(ILD), drug-induced ILD, radiation
pneumonitis which required steroid treatment, or any evidence of clinically active
ILD.

- Inadequate bone marrow reserve or organ function as demonstrated by any of the
following laboratory values Absolute neutrophil count <1.5 x 109/L Platelet count <100
x 109/L Haemoglobin <90 g/L

- Prior or current treatment with a 3rd generation EGFR-TKI other than osimertinib.

- Prior or current treatment with savolitinib or another MET inhibitor (eg, foretinib,
crizotinib, cabozantinib, onartuzumab, capmatinib).

- Patients who have received ≥4 lines of systemic therapy for NSCLC.

- Any cytotoxic chemotherapy, investigational agents or other anticancer drugs for the
treatment of advanced NSCLC from a previous treatment regimen or clinical study within
14 days prior to the first dose of study treatment with the exception of monotherapy
osimertinib which may continue uninterrupted during screening.

- Patients currently receiving (or unable to stop use prior to receiving the first dose
of study treatment) medications or herbal supplements known to be strong inducers or
strong inhibitors of CYP3A4, strong inhibitors of CYP1A2, or CYP3A4 substrates which
have a narrow therapeutic range within 2 weeks of the first dose of study treatment (3
weeks for St John's Wort).

- Warfarin is not permitted (low molecular weight heparin is allowed).

- Participation in another clinical study with a cytotoxic, investigational product
(IP), or other anticancer drug for the treatment of advanced NSCLC if received IP from
that study within 14 days of the first dose of study treatment.

- Known hypersensitivity to the active or inactive excipients of osimertinib or
savolitinib or drugs with a similar chemical structure or class.
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