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The aim of the trial is to assess efficacy and safety of the treatment with durvalumab in PS 2 patients with treatment-naïve, locally advanced or metastatic, PD-L1 positive NSCLC who are considered unsuitable for combination platinum-containing therapy.
Full description
Lung cancer is the leading cause of cancer deaths. An estimated 30 to 40% of patients diagnosed with NSCLC have a poor Performance status (PS) defined as a score of 2 or higher on the ECOG scale. PS 2 patients are often underrepresented in clinical trials despite representing a very frequent and important subgroup.
Platinum-based (preferably carboplatin) doublets should be considered as standard of care in eligible PS 2 patients. However the toxicity profile of platinum-based doublets remains a concern. Single-agent chemotherapy represents an alternative treatment option for the PS 2 patients considered unsuitable for platinum doublet chemotherapy but its efficacy is limited and the outcome poor.
Given the superiority of the anti-PD-1 antibody pembrolizumab versus standard chemotherapy as first line therapy in a PD-L1 positive NSCLC population, it now became the standard treatment. The PS of patients enrolled in these trials were PS 0 or 1, making the benefit of PD-L1 antibodies in PS 2 patients unclear. A retrospective real-life data analysis of nivolumab in metastatic NSCLC revealed similar treatment-related AE between patients with a PS of 0 or 1 with those having a PS of 2, confirming good treatment tolerability in poor PS patients.
The overall favorable toxicity profile of durvalumab and the absence of robust efficacy data of checkpoint inhibitors in first line treatment of patients with PD-L1 positive NSCLC with a PS of 2, encourage to investigate its activity in this cohort of patients when considered unsuitable for platinum doublet chemotherapy.
Finally, this trial aims to prolong overall survival by treating this cohort of frail patients with durvalumab, compared to historical controls, treated with single agent chemotherapy.
Enrollment
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Inclusion criteria
Written informed consent according to Swiss law and ICH/GCP regulations before registration and prior to any trial specific procedures
Histologically confirmed NSCLC, advanced or recurrent disease (stage IIIB to IV). Cytology could be accepted if histology is not possible
PD-L1 expression of ≥ 25% of the tumor cells by local testing (Ventana SP142 excluded)
No sensitizing EGFR mutation (L858R or exon 19 deletions), ALK fusion oncogene or rearrangements of the ROS1 gene detected in patients with a non-squamous cell NSCLC
Patient unsuitable for platinum-containing combination chemotherapy according to investigator or due to patient preference
WHO PS of 2. Confirmation of PS2 by a second medical doctor is mandatory.
Age ≥ 18 years
Baseline QoL forms and GA questionnaires have been completed
Bone marrow function: hemoglobin ≥ 90 g/L, neutrophil count ≥ 1.5 x 109/L, platelet count ≥ 100 x 109/L
Hepatic function: bilirubin ≤ 1.5 x ULN (except for patients with Gilbert's disease ≤ 3.0 x ULN); patients without liver metastases: AST and ALT ≤ 2.5 x ULN, patients with documented liver metastases: AST and ALT ≤ 5 x ULN
Renal function: estimated glomerular filtration rate (eGFR)> 30 mL/min/1.73m² (according to CKD-EPI formula)
Measurable or evaluable disease (by RECIST v1.1)
Patients with asymptomatic untreated CNS metastases are eligible, provided they meet the following:
Patients with symptomatic treated CNS metastases are eligible, provided they meet the following:
Tumor tissue available for central PD-L1 assessment and translational research (preferably histology but cytology could be allowed if histology is not possible). In case of scarce tumor material, a rebiopsy, if clinically possible, is encouraged
Women with child-bearing potential are using effective contraception, are not pregnant or lactating and agree not to become pregnant during trial treatment and during the 3 months thereafter. A negative pregnancy test before inclusion into the trial is required for all women with child-bearing potential
Men agree not to father a child during trial treatment and during 3 months thereafter
Body weight > 30kg.
Life expectancy > 3 months.
Exclusion criteria
Any potential patient who meets any of the following criteria has to be excluded from entering the trial.
History of hematologic or primary solid tumor malignancy, unless in remission for at least 3 years before registration with the exception of pT1-2 prostate cancer Gleason score <6, adequately treated cervical carcinoma in situ or localized non-melanoma skin cancer
Prior adjuvant systemic anti-cancer treatment within 6 months before registration
Prior systemic treatment for metastatic NSCLC
Prior treatment with a PD-1 or PD-L1 inhibitor
Current or prior use of immunosuppressive medication within 28 days before the first dose of durvalumab, with the exceptions of intranasal and inhaled corticosteroids or systemic corticosteroids at physiological doses (i.e. which must not exceed 10 mg/day of prednisone or an equivalent corticosteroid)
Concomitant drugs contraindicated for use with durvalumab such as corticosteroids, methotrexate, azathioprine and tumor necrosis factor (TNF)-α blockers
Concurrent treatment with other experimental drugs or other anticancer therapy, treatment in a clinical trial within 28 days prior to registration
Major surgical procedure within 14 days prior to registration
Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease [e.g., colitis or Crohn's disease], diverticulitis [with the exception of diverticulosis], systemic lupus erythematosus, sarcoidosis syndrome, or Wegener syndrome [granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc]). The following are exceptions to this criterion:
Uncontrolled diabetes mellitus
Known history of human immunodeficiency virus (HIV) or active chronic Hepatitis C or Hepatitis B Virus infection or any uncontrolled active systemic infection requiring intravenous (iv) antimicrobial treatment
Known history of tuberculosis
Known history of primary immunodeficiency
Known history of allogeneic organ transplant
Receipt of live attenuated vaccine within 28 days prior to registration
Severe or uncontrolled cardiovascular disease (congestive heart failure NYHA III or IV; unstable angina pectoris, history of myocardial infarction within the last six months, serious arrhythmias requiring medication (with exception of atrial fibrillation or paroxysmal supraventricular tachycardia), significant QT-prolongation, uncontrolled hypertension
Any other serious underlying medical, psychiatric, psychological, familial or geographical condition, which in the judgment of the investigator may interfere with the planned staging, treatment and follow-up, affect patient compliance or place the patient at high risk from treatment-related complications.
Patients with dyspnea grade ≥ 3 according to the modified Medical Research Council (mMRC) dyspnea scale.
Patients with symptomatic pneumonitis (grade ≥ 2) or active lung infection. Patients having fully recovered from active lung infection can be included assumed they have completed antibiotics and/or corticosteroids
Patients with disseminated intravascular coagulopathy
Patient with a baseline CT scan older than 21 days prior to registration.
Primary purpose
Allocation
Interventional model
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48 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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