Tecemotide Following Concurrent Chemo-radiotherapy for Non-small Cell Lung Cancer

Study Overview
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Brief Summary
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This is a multi-center, double-blind, placebo-controlled, randomized, Phase 3 trial in subjects with unresectable stage III non-small cell lung cancer (NSCLC) who have demonstrated either stable disease or objective response following primary concurrent chemo-radiotherapy (CRT), comparing overall survival (OS) time in subjects treated with tecemotide versus subjects treated with tecemotide-matching placebo.

Official Title
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A Multicenter, Randomized, Double-blind, Placebo-controlled Phase III Trial of Tecemotide Versus Placebo in Subjects With Completed Concurrent Chemo-radiotherapy for Unresectable Stage III Non-small Cell Lung Cancer (NSCLC)

Conditions
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Carcinoma, Non-Small-Cell Lung

Intervention / Treatment
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* Drug: Tecemotide
* Drug: Placebo
* Drug: Cyclophosphamide (CPA)
* Drug: Saline (sodium chloride)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Written informed consent, before any trial-related activities are carried out Histologically or cytologically documented unresectable stage III NSCLC, including bronchioalveolar carcinomas. Cancer stage must be confirmed and documented by computed tomography (CT), magnetic resonance imaging (MRI) or positron emission tomography (PET) scan Prior concurrent CRT which is defined as follows: Minimum of 2 cycles of platinum-based chemotherapy Radiotherapy with a total tumor dose greater than equal to (>=) 60 Gray and a single fraction dose >= 1.8 Gray Overlap of radiotherapy with minimum 2 cycles of platinum-based chemotherapy (one cycle is defined as either 3 or 4 weeks depending on the chemotherapy regimen). A deviation of 2 to 3 days from an exact overlap is acceptable. Purely radiosensitizing doses of chemotherapy are not acceptable (for example [e.g.], daily low dose regimens; weekly carbo-platinum + paclitaxel regimens are allowed). Subjects must have completed the primary thoracic CRT at least 4 weeks (28 days) and no later than 12 weeks (84 days) prior to randomization. Subjects who received prophylactic brain irradiation as part of primary CRT are eligible. Documented stable disease or objective response, according to Response Evaluation Criteria in Solid Tumors (RECIST) 1.1, after primary concurrent CRT for unresectable stage III disease, within 4 weeks (28 days) prior to randomization An Eastern Cooperative Oncology Group (ECOG) performance status of 0-1 A platelet count, white blood cells (WBC) and hemoglobin value as defined in the protocol Male or female, greater than or equal to 18 years of age Other protocol defined inclusion criteria could apply Exclusion Criteria: Undergone lung cancer specific therapy (including surgery) other than initial concurrent CRT Received chemotherapy during radiotherapy in radiosensitizing doses only (e.g., daily low dose regimens; weekly carbo-platinum + paclitaxel regimens are allowed). Metastatic disease Malignant pleural effusion at initial diagnosis, during initial CRT, and/or at trial entry Past or current history of neoplasm other than lung carcinoma, except for curatively treated non-melanoma skin cancer, in situ carcinoma of the cervix or other cancer curatively treated and with no evidence of disease for at least 5 years A recognized immunodeficiency disease including human immunodeficiency virus (HIV) infection and other cellular immunodeficiencies, hypogammaglobulinemia or dysgammaglobulinemia; subjects who have hereditary, congenital or acquired immunodeficiencies Splenectomy Any preexisting medical condition requiring chronic systemic steroid or immunosuppressive therapy (steroids for the treatment of radiation pneumonitis are allowed) Receipt of immunotherapy (as defined in the protocol) within 4 weeks prior to randomization Receipt of investigational systemic drugs (including off-label use of approved products) within 4 weeks prior to randomization Autoimmune disease Active or chronic infectious hepatitis Infectious process that, in the opinion of the Investigator, could compromise the subject's ability to mount an immune response Clinically significant hepatic dysfunction, renal dysfunction and cardiac disease as defined in the protocol Pregnant or breast-feeding women Known drug abuse/alcohol abuse Participation in another interventional clinical trial within the past 28 days (excluding purely observational studies) Requires concurrent treatment with a non-permitted drug Known hypersensitivity to any of the trial treatment ingredients Legal incapacity or limited legal capacity Any other reason that, in the opinion of the Investigator, precludes the subject from participating in the trial Other protocol defined exclusion criteria could apply

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Tecemotide<br> | Drug: Tecemotide<br>* Tecemotide injection will be administered once weekly subcutaneously at a dose of 806 microgram up to Week 8 and from Week 14, every 6 weeks until end-of-trial, or until NSCLC progression.<br>Drug: Cyclophosphamide (CPA)<br>* CPA injection will be administered as a single intravenous infusion at a dose of 300 milligram per square meter (mg/m^2) (to a maximum of 600 mg) 3 days before the first injection of tecemotide.<br>|
| Placebo Comparator: Placebo<br> | Drug: Placebo<br>* Matching placebo injection will be administered once weekly subcutaneously up to Week 8 and from Week 14, every 6 weeks until end-of-trial, or until NSCLC progression.<br>Drug: Saline (sodium chloride)<br>* Matching placebo (saline) injection will be administered as a single intravenous (0.9 percent [%] sodium chloride) infusion 3 days before the first injection of tecemotide-matching placebo.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Overall Survival | Overall survival (OS) was defined as the time (in months) from randomization to death. Data has been presented in terms of number subjects who died and number of censored subjects. | Time from date of randomization until death, assessed maximum up to 16 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time to Symptom Progression (TTSP) | TTSP was measured from date of randomization to date of disease progression (defined based on RECIST v1.1), using the lung cancer symptom scale (LCSS), a validated questionnaire consisting of an observer scale and a subject scale used to specifically measure symptom changes relevant to quality of life (QoL) for individuals undergoing treatment for lung cancer. Subject scale was used as a tool to determine TTSP. It was a 9-item questionnaire used to document subject-reported outcomes for a variety of lung cancer associated symptoms. The average symptomatic burden index (ASBI) was used to determine differences in the treatment groups. ASBI was the mean of the 6 symptom scores derived from the LCSS questionnaire. Symptom progression was defined as an increase (worsening) of the ASBI score of 10% of the scale breadth (10 mm on a scale of 0-100 mm) from the baseline score on at least 2 consecutive assessments during the period when assessments are performed every 3 weeks and every 6 weeks. | Time from date of randomization until progressive disease (PD), assessed up to 16 months | 
| Progression Free Survival (PFS) | PFS was defined as the time from date of randomization until date of the first documentation of PD or death due to any cause in the absence of documented PD, whichever occurred first. PFS was assessed as per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1). PD was defined as at least a 20% increase in the sum of longest diameter (SLD), taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions. Subjects without event were censored on the date of last tumor assessment. | Time from date of randomization until PD or death, assessed up to 16 months | 
| Time to Progression (TTP) | TTP was measured from the date of randomization to the date of tumor progression. Date of tumor progression was date of radiological diagnosis of PD, performed as per RECIST 1.1. PD is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of 1 or more new lesions is also considered progression. For participants alive without tumor progression at time of analysis, the time between date of randomization and date of last trial treatment was calculated and used as a censored observation in the analysis. Subjects dying from causes other than PD was censored at time of death. | Time from date of randomization until PD, assessed up to 16 months | 
| Number Subjects With Treatment Emergent Adverse Events (TEAEs), Serious TEAEs, National Cancer Institute-Common Toxicity Criteria (NCI-CTC)Grade 3/4 TEAEs, TEAEs Leading to Permanent Discontinuation, TEAEs Leading to Death, Injection Site Reactions (ISRs) | An adverse event (AE) was defined as any new untoward medical occurrences/worsening of pre-existing medical condition, whether or not related to study drug. A serious TEAE was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect. TEAEs occurred between the first dose of study drug and up to 42 days after the last dose that were absent before treatment or that worsened relative to pretreatment state. Number of Subjects With TEAEs, Serious TEAEs, NCI-CTC Grade 3/4 TEAEs, TEAEs Leading to Permanent Discontinuation, TEAEs Leading to Death, and ISRs were reported. | Time from first dose up to 42 days after the last dose of the trial treatment: assessed maximum up to 16 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Carcinoma, Non-Small-Cell Lung, Tecemotide, Placebo, NSCLC, L-BLP25