After receiving multiple low dose of cyclophosphamide, subjects will receive 8 consecutive weekly subcutaneous vaccinations with 806 mcg of tecemotide (L-BLP25) at Weeks 1, 2, 3, 4, 5, 6, 7 and 8 followed by maintenance vaccinations (806 mcg of tecemotide (L-BLP25) at 6-Week intervals, commencing at Week 14, until disease progression requiring anti-tumor therapy is documented.

An intravenous (IV) infusion of 300 milligram per square meter (mg/m^2) (to a maximum 600 mg) of cyclophosphamide will be given 3 days before the first vaccine treatment.

An IV infusion of 300 mg/m^2 (to a maximum 600 mg) of cyclophosphamide will be given 3 days before the first vaccine treatment plus an intravenous dose of cyclophosphamide (300 mg/m^2, to a maximum of 600 mg) 3 days prior to the tecemotide (LBLP25) administration at week 5 of the weekly treatment phase and 3 days prior to every tecemotide (L-BLP25) administration during the treatment phase with 6-Weekly administration of tecemotide (L-BLP25), commencing at Week 14 up to a maximum treatment period of 2 years.

Relationship between immune response with HLA subtypes was determined by analyzing the number of participants with overall induced immune response grouped by the presence versus absence of the given HLA type.

OCR (CR, or PR, or MR or NC or PD or NE) was defined per Blade Criteria. OCR rate (CR, or PR, or MR) was defined as the number of participants having experienced at least once a CR, PR, or MR, divided by the number of all participants. CR: negative immunofixation on serum and urine monoclonal paraprotein (M-protein), disappearance of any soft tissue plasmacytomas (STP), <=5% plasma cells in bone marrow (BM); PR: >=50% reduction in serum M-protein, plasma cells in BM, size of STP; >=90% reduction of urinary M-protein in 24 hours, no increase in size/number of the lytic bone lesions (LBL). MR: 25%-49% reduction in serum M-protein, plasma cells in BM aspirate in non-secretory myeloma participants, size of STP; 50%-89% reduction in 24 h urinary light chain reaction (LCR), and no increase in size/number of LBL. PD: >25% increase in the serum M-protein level, 24 hour urinary LCR. Increase in size of existing BL or STP, development of new BL or STP, or development of hypercalcemia

Progression was defined as follows per Blade criteria: The disease was considered to be progressive if it met 1 or more of the following: >25% increase in the level of serum monoclonal paraprotein (M-protein);>25% increase in the 24 h urinary light chain excretion; >25% increase in plasma cells in the bone marrow- definite increase in the size of existing bone lesions or soft tissues plasmacytomas (STP); Development of new bone lesions or STP, or development of hypercalcemia. TTP was defined as time from randomization to disease progression. Participants without events were censored on the date of last tumor assessment. Participants without PD at time of treatment discontinuation were censored at the date of discontinuation. Participants without PD at the time of the analysis but still on treatment were censored at the date of the latest available multiple myeloma status assessment. Participants dying from causes other than PD were treated as censored observations at time of death.

Time from date of randomization to the date of first anti-tumor therapy since end of study treatment. In case a concomitant or concurrent procedure was identified as anti-tumor therapy during the medical review process, the start date of that anti-tumor therapy was used instead. Participants in the survival follow-up phase without subsequent anti-tumor therapy at the time of the analysis were censored at the latest available follow-up date. Participants without anti-tumor therapy and still on treatment at the time of analysis were censored at the data cut-off date if any trial treatment administration was recorded after the data cut-off date. In case no such record exists, the subject was censored at the last available administration date prior or equal to the data cut-off date. Participants dying before start of subsequent anti-tumor therapy were treated as censored observations at time of death.

TEAEs occurred between the first dose of study drug administration and up to 42 days after the last dose of study drug administration that were absent before treatment or that worsened relative to pretreatment state. 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.Grade 3 and 4 TEAES as per National Cancer Institute Common Terminology Criteria for Adverse Experience version 3 (NCI-CTCAE v3.0) were presented. Grade 3 refers to severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care and Activity of daily living (ADL).Grade 4 refers to Life-threatening consequences; where urgent intervention indicated. Injection site reactions, term used per NCI-CTCAE, were also presented.

Tecemotide (L-BLP25): After receiving multiple low dose cyclophosphamide, participants received 8 consecutive weekly subcutaneous vaccinations with 806 mcg of tecemotide (L-BLP25) at Weeks 1, 2, 3, 4, 5, 6, 7 and 8 followed by maintenance vaccinations (806 mcg of tecemotide(L-BLP25) at 6-Week intervals, commencing at Week 14, until disease progression requiring anti-tumor therapy was documented.

Multiple low dose cyclophosphamide: An IV infusion of 300 mg/m^2 (to a maximum 600 mg) of cyclophosphamide was given 3 days before the first vaccine treatment plus an IV dose of cyclophosphamide (300 mg/m^2, to a maximum of 600 mg) 3 days prior to the tecemotide(LBLP25) administration at week 5 of the weekly treatment phase and 3 days prior to every tecemotide (L-BLP25) administration during the treatment phase with 6-Weekly administration of tecemotide (L-BLP25), commencing at Week-14 up to a maximum treatment period of 2 years.

Tecemotide (L-BLP25): After receiving multiple low dose cyclophosphamide, participants received 8 consecutive weekly subcutaneous vaccinations with 806 mcg of tecemotide (L-BLP25) at Weeks 1, 2, 3, 4, 5, 6, 7 and 8 followed by maintenance vaccinations (806 mcg of tecemotide(L-BLP25) at 6-Week intervals, commencing at Week 14, until disease progression requiring anti-tumor therapy was documented.

Multiple low dose cyclophosphamide: An IV infusion of 300 mg/m^2 (to a maximum 600 mg) of cyclophosphamide was given 3 days before the first vaccine treatment plus an IV dose of cyclophosphamide (300 mg/m^2, to a maximum of 600 mg) 3 days prior to the tecemotide(LBLP25) administration at Week 5 of the weekly treatment phase and 3 days prior to every tecemotide (L-BLP25) administration during the treatment phase with 6-Weekly administration of tecemotide (L-BLP25), commencing at Week-14 up to a maximum treatment period of 2 years.

Tecemotide (L-BLP25): After receiving multiple low dose cyclophosphamide, participants received 8 consecutive weekly subcutaneous vaccinations with 806 mcg of tecemotide (L-BLP25) at Weeks 1, 2, 3, 4, 5, 6, 7 and 8 followed by maintenance vaccinations (806 mcg of tecemotide(L-BLP25) at 6-Week intervals, commencing at Week 14, until disease progression requiring anti-tumor therapy was documented.

Multiple low dose cyclophosphamide: An IV infusion of 300 mg/m^2 (to a maximum 600 mg) of cyclophosphamide was given 3 days before the first vaccine treatment plus an IV dose of cyclophosphamide (300 mg/m^2, to a maximum of 600 mg) 3 days prior to the tecemotide(LBLP25) administration at Week 5 of the weekly treatment phase and 3 days prior to every tecemotide (L-BLP25) administration during the treatment phase with 6-Weekly administration of tecemotide (L-BLP25), commencing at Week-14 up to a maximum treatment period of 2 years.

Tecemotide (L-BLP25): After receiving multiple low dose cyclophosphamide, participants received 8 consecutive weekly subcutaneous vaccinations with 806 mcg of tecemotide (L-BLP25) at Weeks 1, 2, 3, 4, 5, 6, 7 and 8 followed by maintenance vaccinations (806 mcg of tecemotide(L-BLP25) at 6-Week intervals, commencing at Week 14, until disease progression requiring anti-tumor therapy was documented.

Multiple low dose cyclophosphamide: An IV infusion of 300 mg/m^2 (to a maximum 600 mg) of cyclophosphamide was given 3 days before the first vaccine treatment plus an IV dose of cyclophosphamide (300 mg/m^2, to a maximum of 600 mg) 3 days prior to the tecemotide(LBLP25) administration at Week 5 of the weekly treatment phase and 3 days prior to every tecemotide (L-BLP25) administration during the treatment phase with 6-Weekly administration of tecemotide (L-BLP25), commencing at Week-14 up to a maximum treatment period of 2 years.

Tecemotide (L-BLP25): After receiving multiple low dose cyclophosphamide, participants received 8 consecutive weekly subcutaneous vaccinations with 806 mcg of tecemotide (L-BLP25) at Weeks 1, 2, 3, 4, 5, 6, 7 and 8 followed by maintenance vaccinations (806 mcg of tecemotide(L-BLP25) at 6-Week intervals, commencing at Week 14, until disease progression requiring anti-tumor therapy was documented.

Multiple low dose cyclophosphamide: An IV infusion of 300 mg/m^2 (to a maximum 600 mg) of cyclophosphamide was given 3 days before the first vaccine treatment plus an IV dose of cyclophosphamide (300 mg/m^2, to a maximum of 600 mg) 3 days prior to the tecemotide(LBLP25) administration at Week 5 of the weekly treatment phase and 3 days prior to every tecemotide (L-BLP25) administration during the treatment phase with 6-Weekly administration of tecemotide (L-BLP25), commencing at Week-14 up to a maximum treatment period of 2 years.