Activity of pazopanib in chemo-resistant patients with germ cell tumors (GCT): First results of the open-label, single-group, phase II PAZOTEST-01 trial.

2014 ◽  
Vol 32 (4_suppl) ◽  
pp. 376-376 ◽  
Author(s):  
Patrizia Giannatempo ◽  
Nicola Nicolai ◽  
Elena Farè ◽  
Daniele Raggi ◽  
Luigi Piva ◽  
...  

376 Background: Patients (pts) with germ cell tumors (GCT) who fail to be cured following multiple chemotherapy (CT) courses (± high-dose CT) have an extremely poor prognosis and long-term remissions are anecdotal. Pazopanib (PZP) is a potent and selective, orally available, TKI of VEGFR1, 2, and 3, PDGFRα, PDGFRβ, and cKit. Here we report the initial results of the ongoing open-label, single-group, phase II study which is sponsored by INT Milano (ClinicalTrials.gov NCT01743482). Methods: Pts with refractory GCT received pazopanib 800 mg/day orally until disease progression or evidence of unacceptable toxicity/side effects. Eligibility requirements included failure of at least two platinum-based CT, including high-dose CT. All pts underwent measurement of serum tumor markers (STM), a computed tomography and a FDG-PET after one month of treatment and q2 months thereafter. Results: From May 2013 to July 2013, five pts were enrolled, three in fourth, and two in fifth-line. Median age was 39 (IQR: 33 to 48). Three out of five had failed high-dose chemotherapy (HDCT), two had an extragonadal primary, all pts had at least one elevated STM at baseline, the sole parameter in one patient, two had liver metastases, four pts had a retroperitoneal relapse. Four had elevation of alfafetoprotein (AFP), one of human choriogonadotropin (HCG). Four were nonseminomas, one a pure seminoma. After the first month of treatment, four out of five pts had a decrease in marker levels, one patient had disease progression (PD). Two of the responding pts had a necrotic evolution of disease at computed tomography corresponding to a RECIST and metabolic (PET/CT) progression, two had a stable disease. Two-month follow up is available for three out of four responders: one interrupted PZP for toxicity and had a marker PD, another an increase to baseline levels and the last one a further reduction (pure seminoma, one out of five confirmed response at two months). There were two cases of hepatic toxicities (one G2 and one G3-4 with dose interruption). Conclusions: PZP is endowed with preliminary activity in extensively pretreated patients with GCT. The unique availability of STM in interpreting densitometric and metabolic response might provide insights into response assessment of solid tumors under antiangiogenic therapy. Clinical trial information: NCT01743482.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 5058-5058
Author(s):  
Ugo De Giorgi ◽  
Giuseppe Schepisi ◽  
Giorgia Gurioli ◽  
Carmela Pisano ◽  
Umberto Basso ◽  
...  

5058 Background: Therapeutic options for patients with advanced germ cell tumors (GCTs) after multiple relapses or resistant disease are limited. Olaparib is an inhibitor of poly ADP ribose polymerase (PARP), an enzyme involved in DNA repair. We aimed to evaluate olaparib activity in patients with refractory GCT. Methods: In this proof-of principle open-label, single-arm, phase II trial of olaparib 300 mg twice daily in patients with relapsed/refractory metastatic germ cell cancer IGG-02 study (NCT02533765), patient eligibility included failure after high-dose chemotherapy or after at least 2 different cisplatin-based regimens. Measurements of serum tumor markers and computed tomography were carried out at baseline and every 6 weeks of olaparib treatment. The study primary endpoint was the overall response rate, the study planned to recruit initially 18 patients and not continue further recruitment until one or more responses were observed. Results: Between September 2015 and February 2019, 18 patients, median age 39 years (range, 22-61) were enrolled. The number of prior chemotherapy regimens was: 2 for 3 patients (16.7%), 3 for 5 patients (27.8%), >3 for 10 patients (55.6%). Sixteen cases (89.9%) received prior high-dose chemotherapy with support of hematopoietic progenitor cells. Grade 3-4 adverse events were observed in 5 patients (27.7%). There were no partial responses, 5 cases (27.8%) with stable disease (SD) lasting 3, 4, 4, 7 and 7+ months and 13 (72.2%) progressive disease. The 12-week progression-free survival probability was 27.8% [95% confidence interval (CI): 10.1%-48.9%]. The 12-month overall survival probability was 27.8% (95% CI: 10.1%-48.9%). A germline DNA repair profile panel showed only a BRCA1 mutated case associated with a SD lasted 4 months. Conclusions: Olaparib as a single agent has marginal activity in heavily pretreated GCT patients, however, an anecdotic 4-month SD in the only BRCA mutated patient has been reported. Plans for future studies with olaparib are suggested in combination or following salvage chemotherapy in less pretreated and more selected GCT patients. The Study has been conducted with AstraZeneca contribution. Clinical trial information: NCT02533765 .


2007 ◽  
Vol 18 (3) ◽  
pp. 273-276 ◽  
Author(s):  
Karin Oechsle ◽  
Friedemann Honecker ◽  
Christian Kollmannsberger ◽  
Oliver Rick ◽  
Victor Gr??nwald ◽  
...  

1994 ◽  
Vol 54 (1) ◽  
pp. 47-53 ◽  
Author(s):  
Stéphane Culine ◽  
Joseph Kattan ◽  
Catherine Lhomme ◽  
Pierre Duvillard ◽  
Guy Michel ◽  
...  

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e15026-e15026
Author(s):  
Joerg Thomas Hartmann ◽  
Bernd Metzner ◽  
Claudia Binder ◽  
Hans-Guenther Mergenthaler ◽  
Oliver Rick ◽  
...  

e15026 Background: High-dose VIP chemotherapy plus ABSCT given as first line treatment might be a strategy in patient with advanced germ cell tumors (GCT) with poor prognosis. The objective of the trial was to investigate the addition of darbepoetin alfa to HD-VIP in order to reduce anemia/red blood cell (RBC) transfusions. Methods: This was a randomized, open-label multicenter phase 2 study conducted in 20 hospitals. Darbepoetin 2.25 mcg/kg weekly or 500 mcg Q3W s.c., started with high dose VIP (dose level 6) was applied in arm B (arm A: HD-VIP alone). The primary objective was freedom from blood transfusions (FFT). Secondary objectives included objective remission rate (ORR) after chemotherapy, 24 mos PFS and OS, median course of hemoglobin (Hb) levels during 3 HD-VIP cycles as well as drug safety. Results: Between 7/2003 and 11/2008 108 pts were allocated to the study, and 106 were included in the intention-to-treat (ITT) analysis. By March 2011 the median follow-up time after randomization was 20 mos. Localisation of primary was gonadal in 66%, retroperitoneal in 19% and mediastinal in 14%s. A favourable treatment outcome (CR/NED/PR m-) in conjunction with secondary surgery (n = 76 pts) was achieved in 58% of pts with no difference between arms A and B. Overall FFT occurred in 2 pts (4.2%) in arm A and 3 pts (5.6%) in arm B, and in 23%/15%/15% and 15%/17%/19% of pts during cycles 1-3, respectively. No differences in baseline Hb, severity of anemia, no of RBC transfusions and area under the curve of Hb levels during HD-VIP was observed. Pts assigned to darbepoetin had similar treatment toxicity compared to those assigned to HD-VIP alone. 24-mos OS in arm A was 86.3% compared to 67.8% (p=.064) in Arm B. 2-year RFS was 66.8% in arm A vs 55.5% in Arm B (p=0.45). Darbopoetin was generally well tolerated with 2 pts discontinuing treatment due to thrombosis. Since compliance to study protocol was generally poor (6 out of 55 pts never received study drug during HD-VIP) a per-protocol analysis is in preparation. Conclusions: Based on ITT analysis, the addition of darbepoetin alfa to the high dose regimen compared to HD-VIP alone does not appear to impact on FFT, ORR, and 2-year survival rate in poor prognosis GCT pts (NCT00204633).


2014 ◽  
Vol 32 (15_suppl) ◽  
pp. e15529-e15529 ◽  
Author(s):  
Patrizia Giannatempo ◽  
Luigi Mariani ◽  
Nicola Nicolai ◽  
Elena Farè ◽  
Daniele Raggi ◽  
...  

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 4554-4554 ◽  
Author(s):  
Fabienne Thomas ◽  
Sotheara Moeung ◽  
Sophie Broutin ◽  
Jerome Guitton ◽  
Michele Boisdron-Celle ◽  
...  

4554 Background: We conducted a national phase II multicenter trial that aimed at evaluating the efficacy and tolerance of Paclitaxel plus Ifosfamide followed by high-dose carboplatin plus etoposide treatment (TICE) in previously treated germ cell tumors. The particularity of our study (in comparison with the standard protocol [Motzer RJ, et al. J Clin Oncol 2000 Mar; 18(6): 1173-1180.]) is that the carboplatin dose was individualized for each patient according to therapeutic drug monitoring (TDM) in order to reach the target AUC of 24 mg.min/ml over 3 days. Methods: In total, 89 patients were evaluable for pharmacokinetic study. Blood samples were taken on day 1 to determine the carboplatin clearance using a Bayesian approach (NONMEM 7.2) and to adjust the dose on day 3 to reach the target AUC of 24 mg.min/ml over 3 days. On days 2 and 3, samples were taken for retrospective assessment of the actual AUC and the intra- and inter-cycle clearance variability. Secondly, a population pharmacokinetic analysis was also performed on 59 patients using NONMEM to develop a covariate equation for carboplatin clearance prediction adapted for future patients treated with the TICE protocol. The performance of this new equation was then prospectively evaluated on the other 30 patients along with different methods of carboplatin clearance prediction. Results: TDM allowed us to control the carboplatin exposure with a mean actual AUC of 24.5 mg.min/ml (22.2 and 28.0 for 5th and 95thpercentile respectively) per cycle. We observed a modest but significant decrease of carboplatin clearance over cycles (median value of change of -11.8% from cycle 1 to cycle 3, maximum value of -36%). The new covariate equation allows unbiased and more accurate prediction of carboplatin clearance in the prospective validation cohort compared to other equations. Conclusions: Carboplatin TDM allowed the target AUC to be accurately reached and thereby avoid over- or under-exposure. We propose a new equation to predict carboplatin clearance more adapted to these particular patients (young males) that could be used as an alternative if the TDM cannot be organized. Clinical trial information: 2008-005068-14.


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