Epidemiology of male seminomatous (SGCT) and non-seminomatous germ cell tumours (NSGCT) and response to first line chemotherapy (CT) from a tertiary cancer centre in India.

Authors

null

Saurabh shyamsunder Zanwar

Tata Memorial Centre, Mumbai, Mumbai, India

Saurabh shyamsunder Zanwar , Amit Joshi , Vanita Noronha , Vijay Maruti Patil , Nishitha Shetty , Kumar Prabhash

Organizations

Tata Memorial Centre, Mumbai, Mumbai, India, Tata Memorial Hospital, Mumbai, India, Tata Memorial Centre, Mumbai, India, Tata Memorial Hospital, Mumbai, Maharashtra, India

Research Funding

No funding sources reported

Background: Unlike the developed countries, there is lack of good epidemiologic data for testicular GCTs in India. The epidemiology tends to differ from that of developed countries with a fair proportion presenting in advanced stage. As a result, outcomes with 1st line CT are likely to differ. This study aims to elaborate on the epidemiology of testicular GCTs and response to standard 1st line CT. Methods: GCTs treated at our centre from January 2013 to August 2014 were retrospectively analysed. Patients underwent orchidectomy either outside or at our hospital. Based on stage and risk group, standard CT (BEP/EP/Carboplatin AUC7) and radiotherapy (RT) was given as appropriate. Response was calculated based on RECIST. Statistical analysis was performed using SPSS 18. Results: 49 of NSGCT and 39 of SGCT cases were studied. The mean age was 28 years (17-70) for NSGCT and 36 years (22-65) for SGCT. 6% of NSGCT and 13% of SGCT had cryptorchidism. 31%, 45%, 63% of NSGCT and 10%, 31%, 21% of SGCT had N2, N3 and M1 disease respectively. The mean nodal size was 5.3cm (0-19) in NSGCT and 2.75cm (0-11) in SGCT. As per the IGCCCG classification 33% NSGCT were good, 35% intermediate and 32% were poor risk whereas 82% of SGCT were good and 18% were intermediate risk. 22% of NSGCT and 13% of SGCT had scrotal violation outside. Following CT amongst NSGCT, 5% and 64% had radiologic CR and PR respectively and 43% had residual nodal disease requiring RPLND. Amongst SGCT, 31% and 56% had radiologic CR and PR respectively and 6% required RPLND. 18% NSGCT and 6% SGCT were unamenable for surgical resection post CT. 20%, 52%, 11% of NSGCT and 16%, 32%, 28% of SGCT developed febrile neutropenia, grade 3/4 haematological and non-haematological toxicity respectively after standard CT. 10% of both NSGCT and SGCT patients defaulted after CT. Conclusions: GCTs in India present with large nodal and high risk disease wherein the standard first line CT may not be adequate as curative therapy, however significant chemotoxicity is also a hinderance.

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Abstract Details

Meeting

2015 ASCO Annual Meeting

Session Type

Publication Only

Session Title

Publication Only: Genitourinary (Nonprostate) Cancer

Track

Genitourinary Cancer

Sub Track

Germ Cell/Testicular

Citation

J Clin Oncol 33, 2015 (suppl; abstr e15553)

DOI

10.1200/jco.2015.33.15_suppl.e15553

Abstract #

e15553

Abstract Disclosures