Feasibility study of irinotecan based on UGT1A1 polymorphisms for metastatic colorectal cancer: Interim report.

2012 ◽  
Vol 30 (4_suppl) ◽  
pp. 505-505 ◽  
Author(s):  
Hideya Kashihara ◽  
Mitsuo Shimada ◽  
Nobuhiro Kurita ◽  
Masanori Nishioka ◽  
Takashi Iwata ◽  
...  

505 Background: Although Irinotecan prolongs survival, it causes severe diarrhea and neutropenia. Recent pharmacogenetic studies on irinotecan have revealed significant associations of UDP-glucuronosyltransferase 1A1 (UGT1A1) polymorphisms *28 and *6, the latter being specifically detected in East Asians resulting in severe toxicity. It is necessary that the dose-finding trial that decided the optimal dose according to the gene polymorphism to draw out the maximum therapeutic effect while evading the side effect. Previously, we showed UGT1A1 polymorphisms in Japanese patients (2011 ASCO-GI). Here, we present the interim report of prospective trial of the safety about FOLFIRI therapy according to each gene type of UGT1A1 for Japanese patients with advanced CRC. Methods: From 2008, 250 Japanese patients in TOKUSHIMA University were enrolled in this study. Homo group (*6/*6 and *28/*28 or a both hetero types), hetero group (It was *28 and either *6 was hetero type), and wild group (*28 and *6 were wild types) were defined. On the 30 patients with advanced CRC treated with FOLFIRI after standard chemotherapy, wild and homo groups were administered 150mg/m2 irinotecan, and homo group was 100mg/m2. The incidences of severe toxicities in each gene type of UGT1A1 and the response rate in FOLFIRI therapy were investigated. Results: In Japanese people, UGT1A1*6 polymorphisms were higher than *28 (*6 homo 3%, hetero 27% vs *28 homo 0.5%, hetero 13%). On the 30 patients with advanced CRC treated with FOLFIRI, the genotypes of UGT1A1*28 were homozygous in 1 (3%) and heterozygous in 6 (20%), *6 were homozygous in 0 and heterozygous in 8 (27%). In *6 heterozygous patients, severe toxicities (grade 3 or more) were found (38%). In *28 heterozygous patients, 1 patient (17%) showed severe toxicities. There was no decrease of irinotecan doses in each group. The number of course to PD was 7.6 (1-23). Regarding the response rate, PR, SD, PD was observed in 2 (7%), 6 (20%) and 18 patients (60%), respectively. Conclusions: In our interim report, the dosages of irinotecan based on UGT1A1 polymorphisms are safety in FOLFIRI therapy.

2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 570-570
Author(s):  
S. Morimoto ◽  
M. Shimada ◽  
N. Kurita ◽  
T. Iwata ◽  
M. Nishioka ◽  
...  

570 Background: Combination protocol using FU-LV with irinotecan (FOLFIRI) is currently regarded as standard first-line therapy in advanced colorectal cancer (CRC). Although irinotecan prolongs survival, it causes severe diarrhea and neutropenia. Recent pharmacogenetic studies on irinotecan have revealed significant associations of UDP-glucuronosyltransferase 1A1 (UGT1A1) polymorphisms *28 and *6, the latter being specifically detected in East Asians resulting in severe toxicity. It is necessary that the dose-finding trial that decided the optimal dose according to the gene polymorphism to draw out the maximum therapeutic effect while evading the side effect. Here we present the result of prospective trial of the safety about FOLFIRI therapy according to each gene type of UGT1A1 for Japanese patients with advanced CRC. Methods: From 2008, 250 Japanese patients in TOKUSHIMA University were enrolled in this study. Homo group (*6/*6 and *28/*28 or a both hetero types), hetero group (It was *28 and either *6 was hetero type), and wild group (*28 and *6 were wild types) were defined. On the 23 patients with advanced CRC treated with FOLFIRI after standard chemotherapy, wild and homo groups were administered 150mg/m2 irinotecan, and homo group was 100mg/m2. Results: On the 23 patients, the genotypes of UGT1A1 *28 were homozygous in 1 (0.5%) and heterozygous in 5 (28%), *6 were homozygous in 0 and heterozygous in 6 (26%). In *6 heterozygous patients, severe toxicities (grade 3 or more) were found (33%), but in *28 heterozygous patients were not (0%). There was no decrease of irinotecan doses in each group. In Japanese people, UGT1A1 *6 polymorphisms were higher than *28 (*6 homo 3%, hetero 27% vs *28 homo 0.5%, hetero 13%). Conclusions: When the dosage of irinotecan is decided, it is necessary to consider the UGT1A1 *6 heterozygous in Japanese cancer patients. [Table: see text]


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e14572-e14572
Author(s):  
Hirohiko Sato ◽  
Mitsuo Shimada ◽  
Nobuhiro Kurita ◽  
Takashi Iwata ◽  
Kozo Yoshikawa ◽  
...  

e14572 Background: Recent pharmacogenetic studies on irinotecan have revealed significant associations of UDP-glucuronosyltransferase 1A1 (UGT1A1) polymorphisms *28 and *6, the latter being specifically detected in East Asians resulting in severe toxicity such as severe diarrhea and neutropenia. It is necessary that the dose-finding trial that decided the optimal dose according to the gene polymorphism to draw out the maximum therapeutic effect while evading the side effect. Here, we present the final report of prospective trial of safety and efficacy about FOLFIRI ± bevacizumab (Bev) therapy according to each gene type of UGT1A1for Japanese patients with advanced CRC in second-line setting. Methods: Between September 2008 and March 2012, 59 patients were enrolled in this study. Grouping was defined as follows: wild group; both *28 and *6 were wild types, hetero group; *28 and either *6 was hetero type, and homo group; 28/*28 and *6/*6* or a both hetero types. In the 59 patients with advanced CRC treated with FOLFIRI ± Bev as a second line, wild and hetero groups were administered 150mg/m2 irinotecan, and homo group was 100mg/m2. The incidences of severe toxicities according to gene type of UGT1A1, the response rate and progression-free survival were investigated. Results: In the 59 patients, wild group was 28 (47%), hetero group was 26 (44.1%) and homo group was 5 (8.5%). 8 patients (29%) showed severe toxicities (grade 3 or more) in wild group, 5 patients (19%) in hetero group, 1 patient (20%) in homo group (P=0.71). Regarding the response rate, CR, PR, SD, PD was observed in 1 (4.0%), 1 (4.0%), 5 (20.0%) and 18 patients (72.0%), respectively in wild group, 0 (0.0%), 2 (8.3%), 5 (20.8%) and 17 patients (70.8%), in hetero group, 0 (0.0%), 0 (0.0%), 1 (20.0%) and 4 patients (80.0%), in homo group. The overall response rate (CR+PR) was 8.0% in wild group, 8.3% in hetero group, 0% in homo group (P=0.80). As for progression-free survival, the number of cycle to PD was 12.1 cycles (2-35 cycles) in wild group, 8.3 (2-20) in hetero group, 9.8 (6-14) in homo group (P=0.15). Conclusions: The dosages of 150mg/m2 irinotecan in hetero group, 100mg/m2 in homo group are safe and effective in FOLFIRI ± Bev therapy in the second line. Clinical trial information: UMIN000004773.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 10003-10003 ◽  
Author(s):  
Todd Michael Cooper ◽  
Michael Absalon ◽  
Todd Allen Alonzo ◽  
Robert B Gerbing ◽  
Kasey Joanne Leger ◽  
...  

10003 Background: Effective regimens with favorable toxicity profiles are needed for heavily pre-treated children with relapsed AML. AAML1421 is a Phase I/II study of CPX-351, a liposomal preparation of cytarabine and daunorubicin demonstrating efficacy in adults. AAML1421 sought to determine the recommended Phase 2 Dose (RPD2) of CPX-351 and the response rate (complete response (CR) + complete response without platelet recovery (CRp)) after up to 2 cycles of therapy. Methods: Children > 1 and ≤ 21 years of age with relapsed/refractory AML were eligible for dose finding, and those in first relapse were eligible for efficacy. A modified rolling six design was used for dose-limiting toxicity (DLT) assessment which occurred in Cycle 1. Dose level 1 (DL1) was 135 units/m2 on days 1, 3, and 5 with a single dose de-escalation to 100 units/m2 if DL1 was intolerable. The Efficacy Phase used a Simon-two stage design. The response rate was determined after up to 2 cycles of therapy (Cycle 1: CPX-351; Cycle 2: FLAG). The Overall Response Rate (ORR) was defined as CR+CRp+CRi (CRi = CR with incomplete hematologic recovery). Results: Thirty-eight patients (pts) enrolled: 6 in dose-finding and 32 in the efficacy phase. DLT occurred in 1/6 patients and was a grade 3 decrease in ejection fraction(EF). This was the only Grade 3 cardiac toxicity. Therefore, 135 units/m2 on days 1, 3, 5 was the RP2D. All dose finding pts were eligible for efficacy determination. One pt in the efficacy phase was unevaluable. The most common ≥ Grade 3 toxicities in Cycle 1 included fever/neutropenia (45%), infection (47%), and rash (40%). There was no toxic mortality. Best responses included 20 CR (54%), 5 CRp (14%), and 5 CRi (14%). Seventy percent achieved best response after cycle 1. Twenty-one of 25 patients with CR/CRp had no detectable residual disease (RD) (84%) by flow cytometry. HSCT was used as consolidation in 23/29 responders (79%); 18 of 23 (78%) had no detectable RD prior to HSCT. Conclusions: The RP2D of CPX-351 is 135 units/m2/dose on days 1, 3, 5. CPX-351 was well tolerated and protocol therapy was effective with CR+CRp rates of 68.3% (90% CI 52.9% to 78.0%) and ORR (CR+CRp+CRi) of 81.1% (90% CI 67.4% to 88.8%). AAML1421 response rates are superior to any published North American cooperative group clinical trial for children with AML in first relapse. Clinical trial information: NCT02642965.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 15086-15086
Author(s):  
R. Diaz ◽  
G. Reynes ◽  
A. Tormo ◽  
A. Segura ◽  
A. Santaballa ◽  
...  

15086 Background: Concomitant chemoradiotherapy (CT-RT) with CDDP-5FU CT is a standard treatment in locally advanced esophageal cancer (EC). Long-term results are poor. The role of neoadjuvant CT (nCT) and of radical surgery after CT-RT is unclear. Methods: Single-institution, prospective trial in pts with stage II-IVA EC (TNM). PS 0–1. Staging: CT scan, barium x-ray, esophagoscopy and endoscopic ultrasound. Treatment schema: 1 cycle of neoadjuvant CT (CDDP 100 mg/m2 d1 and 5-FU 1,000 mg/m2/24 h d1–5); after 21 days, 50 Gy of RT (1.8 cGy/day, M to F) and 2 cycles of reduced-dose CT (CDDP 15 mg/m2 d1–5 and 5-FU 800 mg/m2/24 h d1–5, q21 days). In pts deemed resectable, surgery was done after 4–6 weeks. In the remainder, a 10 Gy boost was given with 1 cycle of modified CT. Primary endpoint: clinical and pathological response rate (RR) after 1st phase. Secondary endpoints: OS and toxicity rates. Results: 71 pts accrued between 1998 and 2006. Median age 61 yrs (r 44–80). 96% males. 85% squamous cell carcinomas. Middle third: 51%; upper third: 27%; lower third 22%. Gastric involvement: 11%. cT3: 46%, cT4: 28%. cN positive: 48%. Grade 3–4 toxicity with nCT and CT-RT: mucositis (9 and 19.5%), emesis (9 and 9%) and infection (6 and 9%). Full dose CT-RT: 87%. Clinical RR after 1st phase: CR 50%, PR 25%, SD 9%, PD 7%. Confirmation (CT- biopsy): 69%. Surgery: 30%. Reasons for no surgery: comorbidity (11%) and age (10%). Pathologic RR: CR 39%, microscopic rest 39% and macroscopic rest 22%. Downstaging 50%. No pN positive. 3 pts had unresectable disease. 62% received 2nd phase RT boost, 31% with CT. Clinical RR: CR 69%, PR 6%, PD 25%. Median follow-up 50 m (r 6–129 m). Median OS 10.5 m (r 7.4–12.8 m). 4-year OS of 18%. 47% deaths due to progression, 5% treatment-related deaths and 10% in the postoperative period. Only a clinical CR after 1st phase was found to improve OS (13.5 vs 7 m, p 0.0141). Conclusions: This regimen is well tolerated and offers a high response rate. Clinical response evaluation overestimates the pathologic response rate. In our series, the possible survival benefit of surgery is offset by the postoperative death rate. No significant financial relationships to disclose.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e15580-e15580
Author(s):  
H. Kim ◽  
B. Seo ◽  
J. Kim ◽  
S. Oh ◽  
S. Lee ◽  
...  

e15580 Background: Pharmacogenetic advances in cancer chemotherapy have the potential to predict clinical benefit to particular regimens. Oxaliplatin and irinotecan have shown to be effective in the treatment of gastric cancer. We assessed whether single nucleotide polymorphisms (SNPs) in ERCC1, GST, TS, and UGT1A1predicted overall survival in gastric cancer patients receiving FOLFOX and/or FOLFIRI chemotherapy. Methods: Total genomic DNA was extracted from whole blood of patient. The PCR- restriction fragment length polymorphism (RFLP) method was applied to detect the known variant sites of ERCC1, GST, TS, and UGT1A1. Results: Response rate of FOLFOX (N=75) was 24%. Grade 3–4 neutropenia and neurotoxicity were observed 34.7% and 16%, respectively. TTP and OS of 1st line administration of FOLFOX (N=35) was 3.1 months (95% CI, 0.1–6.1 months) and 13.9 months (95% CI, 12.2–15.6 months). Only the GSTM1 positive genotype showed a significantly better time to progression (P=0.023). But significant genotype variation of TS, GST and ERCC1,which assumed to affect to activity of oxaliplatin was not observed to RR, toxicity, and overall survival. Response rate of FOLFIRI (N=74) was 23%. Grade 3–4 neutropenia and diarrhea were observed 55.4% and 9.5%, respectively. TTP and OS of 1st line administration of FOLFIRI (N=33) was 4.9 months (95% CI, 3.5–6.4 months) and 19.0 months (95% CI, 8.5–29.5months). Low expression type (2R/2R, 2R/3C, and 3C/3C) of TS was associated with high incidence of grade ≥3 neutropenia. But significant genotype variation of UGT1A1,which assumed to affect to toxicity of irinotecan was not observed to RR, toxicity, and survival. Conclusions: In this study, GSTM1 positive genotype showed a significantly better time to progression in the advanced gastric cancer treated with FOLFOX. Low expression type (2R/2R, 2R/3C, and 3C/3C) of TS was associated with high incidence of grade ≥3 neutropenia in the advanced gastric cancer treated with FOLFIRI. Well designed prospective trial will be clearly identifying relations between chemotherapy and genetic variations. No significant financial relationships to disclose.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e19012-e19012
Author(s):  
S. Oizumi ◽  
K. Akie ◽  
S. Ogura ◽  
N. Shinagawa ◽  
S. Fukumoto ◽  
...  

e19012 Background: Platinum-containing therapy is a standard first-line treatment for advanced non-small cell lung cancer (NSCLC). Platinum-free regimens can be alternative if they can provide similar efficacy with better tolerability. This study evaluated the efficacy and safety for combination of irinotecan and S-1, a newly developed oral 5-fluorouracil derivative, for chemotherapy-naïve advanced NSCLC. Methods: In this multicenter phase II trial, we initially planned to enroll 40 patients. Chemotherapy consisted of 4-week cycles of irinotecan (100 mg/m2 IV, day 1 and 15) and S-1 (80 mg/m2 orally, day 1–14). Primary end point was response rate; secondary endpoints were overall survival (OS), progression-free survival (PFS), and safety. Association of UGT1A1 genotypes (*6 and *28) with frequency of severe toxicity was also examined. Results: A total of 112 cycles was administered into 40 patients (median, 3 cycles: range, 1–6). Median age was 64 years (range, 42–75); 29 patients (73%) had adenocarcinoma, and 8 patients (20%) had squamous cell carcinoma. Majority of the patients (32 cases, 80%) had stage IV disease. Twelve patients exhibited partial response (PR), and 17 patients exhibited stable disease (SD), resulting in response rate of 30% [95% confidence interval (95% CI), 16.6–46.5] and disease control rate of 72.5% (95% CI, 56.1–85.4). Median OS and PFS were 13.8 months (95% CI, 10.7–16.9) and 4.7 months (95% CI, 3.4–6.0), respectively. Hematological toxicities of grade 3 or 4 were neutropenia (32.5%) and anemia (5.0%). The most common non-hematologic toxicities of grade 3 or 4 included diarrhea (15.0%) and anorexia (17.5%). There were no treatment-related deaths. Among the 40 patients, there were 1 homozygous and 8 heterozygous for UGT1A1*6, whereas 7 heterozygous for UGT1A1*28; none of the patients had both genotypes. Patients with homozygous or heterozygous for UGT1A1*6 showed a trend for high incidence of grade 3 diarrhea (p = 0.055). No association of UGT1A1*28 with severe toxicity was observed in this study. Conclusions: Irinotecan and S-1 combination is an alternative treatment with tolerable toxicity for previously untreated advanced NSCLC. No significant financial relationships to disclose.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e18081-e18081
Author(s):  
Takashi Yokoi ◽  
Yoshitaro Torii ◽  
Yuichi Katashiba ◽  
Hiroyuki Sugimoto ◽  
Mina Hayashi ◽  
...  

e18081 Background: Until recently non–small-cell lung cancer was treated as a single disease with “platinum-based doublet chemotherapy” comprising first-line treatment for advanced disease. However, survival outcome of advanced non-squamous non–small-cell lung cancer are improving since the appearance of pemetrexed and bevacizumab. These drugs show a high effect especially to Adenocarcinoma, but there are few reports of the regimen which combined these both agents. Then, we designed this study to evaluate the efficacy and safety of pemetrexed, carboplatin, and bevacizumab followed by maintenance pemetrexed and bevacizumab in patients with chemotherapy-naïve Japanese stage IIIB or stage IV non-squamous non–small-cell lung cancer. Methods: Patients received pemetrexed 500 mg/m2, carboplatin area under the concentration-time curve of 6, and bevacizumab 15 mg/kg every 3 weeks for up to six cycles. For patients who is not progressed after pemetrexed, carboplatin and bevacizumab therapy, pemetrexed and bevacizumab were continued until disease progression or unacceptable toxicity. Primarity endpoint is response rate. Results: 23 patients were enrolled between March 2010 and April 2011 and treated. Median age was 64 (40-74), 15 patients were male, 6 patients were PS 0, 20 patients were Stage IV. Response rate was 69.5% and disease control rate was 100%. Median PFS was 8.5 months and median OS was not reached. Median time to response was 1.2 months. There were no grade 3 or worse hemorrhagic events. The feasibility was modest. Conclusions: Pemetrexed and carboplatin plus bevacizumab with maintenance pemetrexed and bevacizumab was efficacy and tolerable regimen in Japanese patients with non-squamous non-small-cell lung cancer. This regimen also has a trend of shorter period for response. It may contribute to the better QoL.


Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 222-222 ◽  
Author(s):  
Stefan Faderl ◽  
Guillermo Garcia-Manero ◽  
Farhad Ravandi ◽  
Gautam Borthakur ◽  
Zeev Estrov ◽  
...  

Abstract Clofarabine (CLO) is a second generation deoxyadenosine nucleoside analog with activity in pts with acute myeloid leukemia (AML). Early reports also suggested activity in MDS, but the role of CLO in MDS has not been defined. To evaluate the activity and safety of CLO in MDS we designed two phase II studies of IV CLO and PO CLO, respectively. Pts were eligible with MDS and ≥5% blasts or IPSS intermediate-2 and high-risk, CMML, and RAEB-t by FAB. Hematopoietic growth factor support prior to and during the study was permitted. In the IV study pts were adaptively randomized (based on response) to receive CLO 15 or 30 mg/m2 IV over 1 hr. daily × 5 every 4–6 weeks. For the PO study, the starting dose of CLO was 40 mg/m2 orally daily × 5 every 4–6 weeks (oral bioavailability assumed ~ 50%, based on preclinical data), which was decreased to 30 mg/m2 orally daily × 5 after 6 pts had been treated on the higher dose. Sixty-one pts (6 RA/RARS/RCMD, 17 RAEB-1, 16 RAEB-2, 11 CMML, 11 RAEB-t) were treated. Forty-two pts (69%) had high- or intermediate-2 risk disease by IPSS. Thirty-six pts received IV CLO and 25 PO CLO. Median age was 67 yrs (range 25–89) (IV) and 70 yrs (54–86) (PO). Overall, > 80% of pts were older than 60 yrs. Approximately 1/3 of pts had secondary MDS: 13 (36%) (IV) and 8 (32%) (PO), respectively. Seventeen (47%) (IV) and 10 (40%) (PO) of pts had unfavorable cytogenetics (by IPSS definition). Thirty-nine (64%) pts failed prior hypomethylator therapy with either decitabine or azacitidine (22 [61%] pts on IV and 17 [68%] pts on PO CLO). Responses of 60 evaluable pts (one pt refused continuation of therapy on D4 of first course) are summarized in the Table: Response (%) Route Dose (mg/m2) N CR CRp HI PO 40/30 24 7 (29) 2 (8) 3 (13) IV 15 20 7 (35) 3 (15) - 30 16 4 (25) 2 (13) - Total - 60 18 (30) 7 (12) 3 (5) Six pts (10%) died on study (all IV CLO; most commonly related to infectious complications). All pts were evaluable for toxicities. Common AEs were nausea, vomiting, skin rash, hyperbilirubinemia and transaminase elevations. Toxicities ≥ grade 3 were rare. Acute renal failure occurred in 7 pts (2 IV [15 mg/m2], 3 IV [30 mg/m2], 2 PO). Myelosuppression and hospitalizations for neutropenic fever were common, but prolonged myelosuppression (> 42 days) was rare. In conclusion, CLO has activity in pts with higher-risk MDS. Optimal dose and schedule for PO and IV CLO remain to be defined. Lower doses of CLO are also associated with responses. Additional dose finding trials are underway to define the MTD and DLT of IV and PO CLO in high-risk MDS.


1999 ◽  
Vol 17 (2) ◽  
pp. 585-585 ◽  
Author(s):  
Manuel Hidalgo ◽  
Daniel Castellano ◽  
Luis Paz-Ares ◽  
Cristina Gravalos ◽  
Maite Diaz-Puente ◽  
...  

PURPOSE: To determine the maximum-tolerated dose (MTD), dose-limiting toxicities, and efficacy of gemcitabine combined with fluorouracil (5-FU) in patients with pancreatic cancer. PATIENTS AND METHODS: Patients with measurable, locally advanced, nonresectable or metastatic pancreatic cancer were candidates for the study. 5-FU was given via protracted venous infusion (PVI) at a fixed dosage of 200 mg/m2/d, and gemcitabine was administered weekly for 3 consecutive weeks every 4 weeks. The initial dose of gemcitabine was 700 mg/m2 and was escalated in increments of 100 mg/m2/wk until the appearance of severe toxicity. Measurements of efficacy included the following: response rate; clinical benefit response, which is a composite measurement of pain, performance status, and weight loss; time to disease progression; and survival. RESULTS: Twenty-six patients received a total of 109 courses. Dose-limiting toxicity, which consisted of grade 4 neutropenia with fever (one patient) and grade 4 thrombocytopenia (one patient), was observed in two of three patients treated with 1,100 mg/m2/wk of gemcitabine. On the basis of these results, the MTD of gemcitabine with 5-FU via PVI on this schedule was 1,000 mg/m2. Sixteen patients developed grade 3-4 neutropenia, and three patients developed grade 3-4 thrombocytopenia. Grade 3-4 nonhematologic toxicity consisted of diarrhea (two patients) and cutaneous toxicity, asthenia, edema, mucositis, and nausea and vomiting (one patient each). The delivered dose-intensity of gemcitabine was similar at the 1,000 mg/m2 dose level (599 mg/m2/wk) as at the 900 mg/m2 (601 mg/m2/wk) dose level. For this reason, the recommended dose of gemcitabine for phase II evaluation on this schedule was 900 mg/m2. Five patients had objective responses (one complete response and four partial responses; response rate, 19.2%; 95% confidence interval [CI], 6.5 to 39.3), and 10 patients had improvement of disease-related symptoms (45%; 95% CI, 24 to 67). After a median follow-up of 17.7 months (range, 7.8 to 24.8 months), the median progression-free survival and overall survival times were 7.4 months (95% CI, 3.3 to 11.4) and 10.3 months (95% CI, 8.1 to 12.5), respectively. CONCLUSION: The MTD of gemcitabine when combined with 5-FU via PVI on this schedule was 1,000 mg/m2/wk; however, on the basis of administered dose-intensity, the recommended dose for additional investigation is 900 mg/m2. This combination chemotherapy regimen was well tolerated and showed promising antitumor activity in the treatment of pancreatic cancer.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 4795-4795
Author(s):  
Silvana Capalbo ◽  
Gaetano Palumbo ◽  
Matteo Dell'Olio ◽  
Maria Grazia Franzese ◽  
Attilio Guarini ◽  
...  

Abstract Abstract 4795 Introduction Radioimmunotherapy (RIT) has emerged as an important treatment options for patients with non-Hodgkin lymphoma (NHL). Yttrium-90 ibritumomab tiuxetan (Zevalin®) consist of ibritumomab, a murine monoclonal antibody to CD20, conjugated to the metal chelator tiuxetan for retention of the beta emitter Yttrium-90. Clinical trials with this agent have demonstrated significant activity in indolent NHL with mild toxicity. The median age of NHL patients included in these trials is mainly < 65 years. Our aim was to evaluate the effectiveness of Zevalin as treatment option for patient > 65 years old with indolent NHL. Patients and Methods Between November 2005 to June 2009 fifteen patients, five males and ten females, median age 76 years (range 67-82), with indolent NHL (13 follicular and 2 small lymphocytic) were treated with Zevalin. Six patients had stage IV disease, five stage III and four stage II. All patients received an initial infusion of rituximab at a dose of 250 mg/m(e)2 on day 1 and a second infusion at same dose on day 8 followed by a weight-based dose of Zevalin (median dose 1006 MBq; range 668-1260). Eight patients perfomed Zevalin as consolidation after first line therapy with Rituximab plus chemotherapy (6 R-CHOP, 1 R-FN, 1 R-COMP): of these three were in complete remission (CR) and five in partial remission (PR). Seven patients perfomed Zevalin in relapse (four in first and three in second relapse). Results After RIT 13 of 15 patients were evaluable. Overall response rate was 92% (10 CR, 2 PR); in particular all patients in first line of treatment achieved CR. One patient had stable disease. At a median follow-up of 15 months (range 2-34), all patients are alive in persistent CR or PR. One of two patients in PR achieved CR after successive therapy. Treatment was well tolerated; transient thrombocytopenia (grade 3-4) was seen in 9 patients and transient neutropenia (grade 3-4 ) in 6 patients. Only one patient developed herpex-zoster virus infection. Conclusion In our experience, Zevalin produces high response rate (up to 90%) and durable remission without severe toxicity in older patients with indolent NHL. Notably, in first-line treatment, RIT resulted in PR-to-CR conversion in all five patients in PR after the R-chemotherapy. The favourable safety profile of this regimen makes it an effective consolidation treatment for older patients who, because of age and comorbidity, are not eligible for intensive treatment as high-dose therapy and stem cell transplantation. Disclosures: No relevant conflicts of interest to declare.


Sign in / Sign up

Export Citation Format

Share Document