Trial Outcomes & Findings for A Study to Demonstrate the Benefit of a New Kind of Anti-cancer Treatment [PReferentially Expressed Antigen of MElanoma (PRAME) Immunotherapy] for Patients With Non-Small Cell Lung Cancer (NSCLC), After Removal of Their Tumor (NCT NCT01853878)

On 18 July 2014, the recruitment was stopped and the study was un-blinded. The study continued only with patients from the active treatment group who decided to stay in the study, however objective and outcomes were not assessed as planned.

Among 137 enrolled patients, 4 patients didn't receive any study product dose and hence they were not taken into account for study start.

Race and Ethnicity were not collected from any participant.

Time to occurrence of any recurrence of disease was expressed in terms of rate: Person-year rate in each group = number of patients reporting at least one recurrence of disease (n)/ sum of follow-up period expressed in years (T\[year)\]) As a consequence of the decision to stop the PRAME-AS15-NSC-002 (ADJ) study, not all data were available for a full analysis. The median follow-up time was 10.3 months in the GSK2302032A group and 5.7 months in the Placebo group. Considering that two Phase III studies with recMAGE-A3 + AS15 failed to demonstrate clinical efficacy of the MAGE-A3 antigen specific cancer immunotherapeutic, GSK decided to stop the development of all recombinant protein based cancer vaccines and to stop recruitment in all the ongoing clinical studies.

OS was defined as the interval from randomization to the date of death, irrespective of the cause of death; patients still alive were censored at the last visit they are known to be alive. Considering that two Phase III studies with recMAGE-A3 + AS15 failed to demonstrate clinical efficacy of the MAGE-A3 antigen specific cancer immunotherapeutic, GSK decided to stop the development of all recombinant protein based cancer vaccines and to stop recruitment in all the ongoing clinical studies. Therefore, based on scientific and medical relevance, the decision was made to stop patient enrollment in the PRAME-AS15-NSC-002 (ADJ) clinical study and to stop follow-up visits, further sample collection for research purposes and the analysis of samples for research purposes. In consequence, the primary and secondary outcomes were not analysed as planned and clinical data for this outcome was not collected.

Lung-cancer specific survival was defined as defined as the interval from randomization to the date of death due to lung cancer; deaths due to other or unknown causes were censored at the date of death. Considering that two Phase III studies with recMAGE-A3 + AS15 failed to demonstrate clinical efficacy of the MAGE-A3 antigen specific cancer immunotherapeutic, GSK decided to stop the development of all recombinant protein based cancer vaccines and to stop recruitment in all the ongoing clinical studies. Therefore, based on scientific and medical relevance, the decision was made to stop patient enrollment in the PRAME-AS15-NSC-002 (ADJ) clinical study and to stop follow-up visits, further sample collection for research purposes and the analysis of samples for research purposes. In consequence, the primary and secondary outcomes were not analysed as planned and clinical data for this outcome was not collected.

DFSS was defined as the interval from randomization to the date of first recurrence of disease or date of death due to lung cancer, whichever occurs first. Patients without recurrence or death due to lung cancer were censored at the date of last assessment. Considering that two Phase III studies with recMAGE-A3 + AS15 failed to demonstrate clinical efficacy of the MAGE-A3 antigen specific cancer immunotherapeutic, GSK decided to stop the development of all recombinant protein based cancer vaccines and to stop recruitment in all the ongoing clinical studies. Therefore, based on scientific and medical relevance, the decision was made to stop patient enrollment in the PRAME-AS15-NSC-002 (ADJ) clinical study and to stop follow-up visits, further sample collection for research purposes and the analysis of samples for research purposes. In consequence, the primary and secondary outcomes were not analysed as planned and clinical data for this outcome was not collected.

Defined as the time from randomization to either the date of first recurrence of the disease or the date of death (whatever the cause), whichever occurred first. The 5-year active follow-up period planned in the initial study protocol was cancelled per Protocol Amendment 2, hence this analysis was not performed.

Unsolicited AEs covered any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

Considering that two Phase III studies with recMAGE-A3 + AS15 failed to demonstrate clinical efficacy of the MAGE-A3 antigen specific cancer immunotherapeutic, GSK decided to stop the development of all recombinant protein based cancer vaccines and to stop recruitment in all the ongoing clinical studies. Therefore, based on scientific and medical relevance, the decision was made to stop patient enrollment in the PRAME-AS15-NSC-002 (ADJ) clinical study and to stop follow-up visits, further sample collection for research purposes and the analysis of samples for research purposes. In consequence, the primary and secondary outcomes were not analysed as planned and clinical data for this outcome was not collected.

Hematological and biochemical parameters assessed were tabulated by maximum grade versus baseline, by CTCAE = Common Terminology Criteria for Adverse Events version 4.0 (Grade 1= mild; Grade 2= moderate; Grade 3= severe; Grade 4= life-threatening; Grade 5 = death; Grade Unknown) and by the type of abnormality (e.g. increased, decreased, prolonged, etc.). Some parameters (e.g. Anemia) already comprise within their definition the type of abnormality presented.

SAEs assessed included medical occurrences that resulted in death, were life threatening, required hospitalization or prolongation of hospitalization or resulted in disability/incapacity. An event that was part of the natural course of the disease under study (i.e., disease progression, recurrence) was captured in the study as an efficacy measure; therefore it did not need to be reported as an SAE.

Grading was done as per the Common Terminology Criteria for Adverse Events (CTCAE) of the U.S. National Cancer Institute, version 4.0. The intensity grades assessed were: 1, 2, 3, 4, 5 and Unknown.