The 1-year overall survival rate (OSR) in the GS+ Population would be above 50% (target = 71%), a percentage which was reported together with its 95% confidence interval (CI). Maximum 1-year OSR of any currently available treatment in the MAGE-A3-positive population = 50% (P0). This median OS of 12 months is based on the observed median OS for MAGE-A3-positive patients, whose tumor did not present the predictive GS. The target 1-year OSR for patients presenting the predictive GS = 71% (P1). This corresponds to a median OS of 24 months when assuming an exponential distribution of OS.

Serious adverse events (SAEs) assessed included medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/ incapacity. Events which were part of the natural course of the disease under study (i.e., disease progression, recurrence) were captured as part of the clinical activity outcome variables in this study; therefore these did not need to be reported as SAEs. Progression/recurrence of the tumor in a patient was recorded as part of the clinical assessment data collection, and deaths due to progressive disease was recorded on a specific form, but not as an SAE. However, if the investigator considered that there was a causal relationship between treatment or protocol design/procedures and the disease progression/recurrence, then the event was reported as an SAE. Any new primary cancer (non-related to the cancer under study) was reported as an SAE.

OR was defined as the best Overall Response (OR) in a patient. OR = Complete Response (CR) + Partial Response (PR). Responses were categorized as CR, PR, stable disease (SD), SD/PR, progressive disease (PD) and non-evaluable (NE). Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by Magnetic-resonance imaging: Complete Response (CR) = disappearance of all target lesions; Partial Response (PR) = ≥30% decrease in the sum of the longest diameter of target lesions; Stable Disease (SD) = neither sufficient shrinkage to be PR, not sufficient increase to qualify for Progressive Disease (PD); PD = ≥20% increase in the sum of largest diameter for target lesions. Best objective response = PR or CR. Disease control = CR, or PR, or SD, or SD/PR.

Assessment was done based on a set of measurable lesions (MLs) identified at baseline as target lesions (TLs) and non-TLs (NTL) followed up until disease progression. MLs assessed for matching below MR definitions. If evaluability per RECIST: a) MR Type 1= at least (a.l.) 30% decrease in LD in a.l. one TL measured at baseline. Such response occurring in SD/PD status of LD of TL and without appearance of one or more new lesions (= SD/PD with TL regression); b) MR Type 2: appearance of one or more new lesions occurring in SD/PR status of LD of TL (= SD/PR with new lesion). If non-evaluability per RECIST (due to LD\<20mm): a) MR Type 1 = a clear decrease in diameters occurring in a.l. one TL measured at baseline. Such response occurring in SD/PD status of LD of (baseline) TL and without appearance of one or more new lesions (= SD/PD with TL regression); b) MR Type 2 = appearance of one or more new lesions occurring in SD/PR status of LD of TL (= SD/PR with new lesion).

TTF was defined as withdrawal from treatment with the GSK2132231A study product due to disease progression or death. TTF analysis was performed using the non-parametric Kaplan-Meier method.

Anti-MAGE-A3 antibody concentrations were presented as geometric mean concentrations (GMCs) and expressed in ELISA units per millilitre (EL.U/mL). A seropositive patient was defined as a patient whose anti-MAGE-A3 antibody concentration was greater than or equal to 27 EL.U/mL. D=Day W=Week

Seroconversion was defined as a concentration of antibodies assessed that was greater than the cut-off value for a patient whose concentration of such antibodies was below the cut-off level before the initiation of treatment. Seroconverted patients were those patients with anti-MAGE-A3 antibody concentrations ≥ 27 EL.U/mL.

For initially seronegative patients: post-administration antibody concentration ≥ 27 EL.U/mL For initially seropositive patients: post-administration antibody concentration ≥ 2 fold the pre-vaccination antibody concentration

This endpoint presents the geometric mean concentration, expressed in titers, of anti-MAGE-A3 specific CD4+ and CD8+ T-cells. These specific T-cells included the cluster of differentiation 4+ (CD4+) and CD8+ T-cells producing cytokines Tumor Necrosis Factor-alpha (TNF-α) and/or Interferon-gamma (INF-γ).

A patient was considered as a cellular mediated immune (CMI) responder if there was an increased amount of antigen-specific T-cells after immunization as compared to the patient's baseline value. These specific T-cells included the cluster of differentiation 4+ (CD4+) and CD8+ T-cells producing cytokines Tumor Necrosis Factor-alpha (TNF-α) and/or Interferon-gamma (INF-γ).

A patient was considered as a cellular mediated immune (CMI) responder if there was an increased amount of antigen-specific T-cells after immunization as compared to the patient's baseline value. These specific T-cells included the cluster of differentiation 4+ (CD4+) and CD8+ T-cells producing cytokines Tumor Necrosis Factor-alpha (TNF-α) and/or Interferon-gamma (INF-γ).

The assessed AEs were ASCI-related grade 3/4 adverse events according to the Common Terminology Criteria for Adverse Events (CTCAE) version 3.0. An unsolicited AE covers any untoward medical occurrence in a clinical investigation patient temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. For marketed medicinal products, this also includes failure to produce expected benefits (i.e. lack of efficacy), abuse or misuse. AEs may include pre- or post-treatment events that occur as a result of protocol-mandated procedures (i.e. invasive procedures, modification of patient's previous therapeutic regimen).

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. ALT - SCR G0; SE G3 = ALT with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. AST - SCR G0; SE G3 = AST with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. ALK - SCR G0; SE G3 = ALK with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. BIL - SCR G0; SE G3 = BIL with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. CREA - SCR G0; SE G3 = CREA with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. GGT - SCR G0; SE G3 = GGT with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. HGB - SCR G0; SE G3 = HGB with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. HCA - SCR G0; SE G3 = HCA with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. HKA - SCR G0; SE G3 = HKA with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. HNA - SCR G0; SE G3 = HNA with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. hAL - SCR G0; SE G3 = hAL with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. hCA - SCR G0; SE G3 = hCA with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. hKA - SCR G0; SE G3 = hKA with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. hNA - SCR G0; SE G3 = hNA with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. LEU - SCR G0; SE G3 = LEU with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. LYM - SCR G0; SE G3 = LYM with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. NEU - SCR G0; SE G3 = NEU with no abnormality/normal value at screening and with Severe abnormality at study end\].

The status of each patient was collected and graded according to the Common Terminology Criteria Adverse Event (CTCAE v.03) terminology. Gradings were: G0 (normal value), G1 (Mild abnormality), G2 (Moderate abnormality), G3 (Severe abnormality), G4 (Life-threatening/Disabling abnormality), Unknown abnormality (UNK). The post-treatment values, at Study End (SE) were presented versus baseline values, at Screening (SCR). \[e.g. PLT - SCR G0; SE G3 = PLT with no abnormality/normal value at screening and with Severe abnormality at study end\].

An AE was any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. AEs reported are here below tabulated irrespective of grade (any), as well as graded by maximum grade reported according to the Common Terminology Criteria (CTC) Adverse event terminology, version 3.0. Maximum grade reported and tabulated were Grade 1 (G1) - Mild AE, G2 - Moderate AE, G3 - Severe AE, G4 - Life threatening/Disabling AE and G5 - Death related to AE.

An AE was any untoward medical occurrence in a patient or clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. AEs reported are here below tabulated irrespective of grade (any), as well as graded by maximum grade reported according to the Common Terminology Criteria (CTC) Adverse event terminology, version 3.0. Maximum grade reported and tabulated were Grade 1 (G1) - Mild AE, G2 - Moderate AE, G3 - Severe AE, G4 - Life threatening/Disabling AE and G5 - Death related to AE.

SAEs include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a patient. Events which were part of the natural course of the disease under study were captured as part of the clinical activity outcome variables in this study; therefore did not need to be reported as SAEs. Progression/recurrence of the tumor was recorded as part of the clinical assessment data collection, and deaths due to progressive disease was recorded on a specific form, but not as an SAE. SAEs reported are here below tabulated irrespective of grade (any), as well as graded by maximum grade reported according to the CTC Adverse event terminology, version 3.0. Maximum grade reported and tabulated were Grade 1 (G1) - Mild SAE, G2 - Moderate SAE, G3 - Severe SAE, G4 - Life threatening/Disabling SAE and G5 - Death related to SAE.

SAEs include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a patient. Events which were part of the natural course of the disease under study were captured as part of the clinical activity outcome variables in this study; therefore did not need to be reported as SAEs. Progression/recurrence of the tumor was recorded as part of the clinical assessment data collection, and deaths due to progressive disease was recorded on a specific form, but not as an SAE. SAEs reported are here below tabulated irrespective of grade (any), as well as graded by maximum grade reported according to the CTC Adverse event terminology, version 3.0. Maximum grade reported and tabulated were Grade 1 (G1) - Mild SAE, G2 - Moderate SAE, G3 - Severe SAE, G4 - Life threatening/Disabling SAE and G5 - Death related to SAE.