PURPOSE: Patients (pts) with mediastinal nonseminomatous germ cell tumors (MNGCT) are belonged to poor prognostic group by IGCCCG. We retrospectively studied the prognostic factors and efficacy of different chemotherapeutic regimen in pts with MNGCT. METHODS: We analyzed data on 61 pts with MNGCT. Conditional induction chemotherapy BEP was performed in 38 %, TBEP-in 28 %, CBOP-in 28 %, accelerated (two weekly) version of BEP-in 6 % pts. Based on similar efficacy of CBOP and TBEP regimens, we combines pts with CPOB and TBEP regimen in one group-55.8 % and different variants of BEP regimen in the second group-44.2 %. Multivariate Cox regression analysis was performed to determine independent factors, which influenced on overall survival. RESULTS: We revealed the following independent negative prognostic factors: age ≥ 24 years (p = 0.07), size of the primary mediastinal tumor ≥19 cm (p = 0.03). Median overall survival (OS) has not been reached, and 2-year OS was 66 % in pts with good prognosis (age < 24 years and/or size of mediastinal tumor < 19 cm) versus 15 months and 40 % in pts with poor prognosis (p = 0.03). Objective marker negative response was revealed more often in pts with CPOB/TBEP group: 26/34 (76.5 %) versus 14/27 (52 %), p = 0.08. Median OS was also higher in pts with CPOB/TBEP group: nonreached versus 15 months (p = 0.01). CONCLUSION: CPOB and TBEP regimen were significantly associated with better outcome in pts with MNGCT. Age ≥ 24 years and size of the primary mediastinal tumor ≥ 19 cm were found as independent negative prognostic factors.
PURPOSE:Patients (pts) with mediastinal nonseminomatous germ cell tumors (MNGCT) are belonged to poor prognostic group by IGCCCG. We retrospectively studied the prognostic factors and efficacy of different chemotherapeutic regimen in pts with MNGCT. METHODS: We analyzed data on 61 pts with MNGCT. Conditional induction chemotherapy BEP was performed in 38 %, TBEP-in 28 %, CBOP-in 28 %, accelerated (two weekly) version of BEP-in 6 % pts. Based on similar efficacy of CBOP and TBEP regimens, we combines pts with CPOB and TBEP regimen in one group-55.8 % and different variants of BEP regimen in the second group-44.2 %. Multivariate Cox regression analysis was performed to determine independent factors, which influenced on overall survival. RESULTS: We revealed the following independent negative prognostic factors: age ≥ 24 years (p = 0.07), size of the primary mediastinal tumor ≥19 cm (p = 0.03). Median overall survival (OS) has not been reached, and 2-year OS was 66 % in pts with good prognosis (age < 24 years and/or size of mediastinal tumor < 19 cm) versus 15 months and 40 % in pts with poor prognosis (p = 0.03). Objective marker negative response was revealed more often in pts with CPOB/TBEP group: 26/34 (76.5 %) versus 14/27 (52 %), p = 0.08. Median OS was also higher in pts with CPOB/TBEP group: nonreached versus 15 months (p = 0.01). CONCLUSION:CPOB and TBEP regimen were significantly associated with better outcome in pts with MNGCT. Age ≥ 24 years and size of the primary mediastinal tumor ≥ 19 cm were found as independent negative prognostic factors.
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