NDLI: PRELIMINARY RESULTS OF A PROSPECTIVE FEASIBILITY PILOT STUDY OF “GEMPOX” (GEMCITABINE, OXALIPLATIN, AND PACLITAXEL) IN PEDIATRIC AND ADULT PATIENTS WITH REFRACTORY OR RECURRENT CENTRAL NERVOUS SYSTEM (CNS) GERM CELL TUMORS (GCT): THE INTERNATIONAL CNS GCT CONSORTIUM TRIAL, CNS GCT-4

Content Provider	PubMed Central
Author	Finlay, Jonathan L. Liu, Yin Haley, Kelley Erdreich-epstein, Anat Rushing, Teresa Grimm, John Wong, Kenneth E. Erin, Kiehna Krieger, Mark D. Gilles, Floyd Badie, Benham Massimo, D'apuzzo Dhall, Girish
Copyright Year	2014
Abstract	BACKGROUND: The optimal management of patients with recurrent CNS GCT, especially those with non-germinomatous (mixed malignant) GCT (MMGCT), remains unclear. Preliminary results are presented on the response rate, toxicity and early outcomes of a re-induction regimen of gemcitabine, oxaliplatin and paclitaxel (GEMPOX) administered, in responsive patients, prior to myeloablative chemotherapy and autologous hematopoietic cell rescue (HDCx + AuHCR). METHODS: Since December 2004, 13 recurrent or refractory patients (12 MMGCT, 1 germinoma; 12 males; mean age 16.5 years, range 7-34 years) have been treated with up to 4 cycles of gemcitabine (800 mg/m2), oxaliplatin (100 mg/m2) and paclitaxel (170 mg/m2), administered on one day at 14 days intervals. RESULTS: Of 13 patients, five were treated on a preceding feasibility pilot with 1-3 cycles of GEMPOX, and seven have been formally enrolled on an ongoing prospective multi-center trial. Six patients achieved complete remissions (tumor marker and/or imaging studies), five achieved partial remissions and two developed progressive disease (PD) while on GEMPOX; one patient with PD after 1 cycle had pathologically confirmed malignant transformation to pure embryonal rhabdomyosarcoma.; the second patient, with pure pineal choriocarcinoma, progressed following the second cycle of GEMPOX. Eleven of the 13 patents subsequently underwent HDCx + AuHCR. Six of them subsequently received irradiation. Transient hepatotoxicity and pancytopenia were the most commonly observed toxicities. Other toxicities included: paclitaxel anaphylaxis (1), transient encephalopathy (1), peripheral neuropathy (1), hyperesthesia (4), mucositis (2) and electrolyte imbalances (3). Four of the 12 patients with MMGCT continue alive and disease-free for 8+ , 10+ , 14+ and 16+ months since discontinuation of all therapy. One patient (with pure yolk sac tumor) relapsed in a loco-regional extra-CNS location (cavernous and ethmoid/sphenoid sinuses) and remains alive with progressive disease on therapy now 12+ months post-HDCx + AuHCR. CONCLUSIONS: GEMPOX appears to be an effective re-induction regimen for patients with recurrent CNS MMGCT, with acceptable toxicities. The ongoing multi-center, international trial should confirm this and demonstrate the contribution of GEMPOX towards improved survival when followed by HDCx + AuHCR with or without further irradiation, in the setting of minimal residual disease. SECONDARY CATEGORY: Pediatrics.
Related Links	http://dx.doi.org/10.1093/neuonc/nou208.12
Starting Page	26
File Format	PDF
ISSN	15228517
e-ISSN	15235866
Journal	Neuro-Oncology
Issue Number	Suppl 3
Volume Number	16
Language	English
Publisher	Oxford University Press
Publisher Date	2014-07-01
Access Restriction	Open
Rights Holder	Oxford University Press
Subject Keyword	Cancer Research Oncology Clinical Neurology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cancer Research Neurology (clinical) Oncology

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