Toxicity and tolerance profile of ANTI-EGFRS in metastatic colorectal cancer RAS wild type from the east of Algeria.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e16032-e16032
Author(s):  
Ammari Abdelaziz ◽  
Linda Djebnoune ◽  
Besma Khater ◽  
Aicha Benmansour ◽  
Assia Bensalem

e16032 Background: The results of the different studies showed that the use of anti-EGFRs (Epidermal Growth Factor Receptor) in the management of mCRCs, confront the healthcare team to a new toxicity which until then, were unknown before the era of anti EGFRs. knowing that there were no Algerian patients in these studies, reason for us to do this work. Methods: Between October 2015 and October 2018, our work consists of an epidemiological, observational, descriptive, longitudinal prospective study, including all patients with metastatic colorectal cancer RAS wild type, receiving specific medical treatment with anti EGFR (Panitumumab or Cetuximab) from Medical Oncology Department of Didouche Mourad Hospital of Constantine and the Medical Oncology Department of Batna’s Anti Cancer Center, performance status 0-2, and age 18-75 years. We have completed this work whose main objective is to evaluate the toxicity of anti EGFRs in patients with mCRC RAS wild-type from the east of Algeria. Results: 60 patients received an anti EGFR (Panitumumab or Cetuximab), in our study the most common toxicity was folliculitis with an average onset time of 3.36 weeks and a frequency of 83% of grade 2 and 3. Xerosis was observed in 71% of patients. Paronychia was observed in 50% of patients, in addition to the classical toxicities observed with the different chemotherapy regimens used in mCRCs. For secondary objectives, the median progression free survival in our study was 12 months, with a 95% confidence interval [10,787-13,213]. This median progression-free survival is comparable to those reported in the major anti-EGFR trials. Conclusions: Our results suggest that the Algerian patients with metastatic colorectal cancer RAS wild-type have the same profile of toxicity comparing to the results from different international trials studying anti EGFRs.

2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 561-561
Author(s):  
S. Yuki ◽  
K. Shitara ◽  
M. Yoshida ◽  
D. Takahari ◽  
S. Utsunomiya ◽  
...  

561 Background: Weekly cetuximab and irinotecan is a standard regimen in heavily pretreated patients with metastatic colorectal cancer (MCRC). The aim of this study was to prospectively evaluate the efficacy of combination chemotherapy with biweekly cetuximab and irinotecan in patients with pretreated MCRC harboring wild-type KRAS. Methods: Patients with wild- type KRAS MCRC that had progressed after chemotherapy with irinotecan, oxaliplatin, and fluoropyrimidine were included in this study. Cetuximab was administered at 500 mg/m2 biweekly with irinotecan. The primary endpoint was response rate. The secondary endpoints included adverse events, progression-free survival, and overall survival. The pharmacokinetics of cetuximab was also evaluated in five patients. Results: From May, 2009 to February, 2010, a total of 31 patients were enrolled from five institutions. One patient was not eligible. Among the 30 assessable patients, ECOG PS was 0 in 12, 1 in 16, and 2 in two patients. The objective response rate was 30.0% (95% confidence interval [CI], 14.7-49.4), and the disease control rate (complete response, partial response, or stable disease) was 76.7% (95%CI, 61.4-92.3). The median progression-free survival was 5.3 months (95%CI, 3.4-7.3). Grade 3 skin toxicity was observed in 3 patients (10%), and treatment related death due to pneumonia occurred in one patient. Conclusions: The efficacy data are similar to those of standard dose of cetuximab plus irinotecan. Combination chemotherapy with biweekly cetuximab and irinotecan is effective for pretreated metastatic wild-type KRAS MCRC. No significant financial relationships to disclose.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 6622-6622
Author(s):  
Andrea Bonetti ◽  
Jcopo Giuliani

6622 Background: In Western Countries, colorectal cancer (CRC) is the second most common cause of death from cancer. In light of the relevant expenses of drugs it might be interesting to make a balance between the cost of the drugs and clinical parameters of interest such as progression free survival (PFS). Methods: Phase III randomized clinical trials (RCTs) that compared at least two front-line chemotherapy regimens for mCRC patients were evaluated. Differences in PFS between the different arms were calculated and compared with the pharmacological costs (at the Pharmacy of our Hospital) needed to get one month of PFS. Subsequently we applied the ESMO-MCBS (a 1 to 5 scale) to the above phase III RCTs. Results: Overall 28 phase III RCTs, including 19 958 patients, were analyzed. The FOLFOX resulted the least expensive (56 € per month of PFS gained) while the addition of irinotecan to FOLFOX (FOLFOXIRI) increased only marginally the costs (90 € per month of PFS gained). Treatments including the monoclonal antibodies showed a cost per month of PFS gained of 2823 € (FOLFIRI with cetuximab in KRAS wild-type patients and liver-only metastases), of € 15 822 (FOLFOX with panitumumab in KRAS wild type) and of 13 383 € (FOLFOX with bevacizumab). According to the ESMO-MCBS the treatments including an EGFR-inhibitor (cetuximab or panitunumab) were associated with a score of 4 while the inclusion of bevacizumab reached a score of 3. The remaining phase III RCTs obtained a low (grade 1-2) score.Dividing the costs per month of PFS gained with the grade of ESMO-MCBS, for each RCTs, we obtained the costs of each point of ESMO-MCBS per month of PFS gained. FOLFOX was confirmed as being the least expensive (18.7 €) while among treatments including a targeted biological agent panitunumab in combination with FOLFOX in K-RAS wild type patients was less expensive (3955 €) than the combinations FOLFOX-bevacizumab (13 383 €) and FOLFIRI-cetuximab in K-RAS wild type patients (21 854.6 €). Conclusions: Our data demonstrate a huge difference in cost per month of PFS gained and per each point of the ESMO-MCBS in modern front line treatments in mCRC.


2014 ◽  
Vol 20 (12) ◽  
pp. 3338-3347 ◽  
Author(s):  
Gilles Manceau ◽  
Sandrine Imbeaud ◽  
Raphaële Thiébaut ◽  
François Liébaert ◽  
Karine Fontaine ◽  
...  

Chemotherapy ◽  
2015 ◽  
Vol 61 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Payam Azadeh ◽  
Nafiseh Mortazavi ◽  
Arezoo Tahmasebi ◽  
Farnaz Hosseini Kamal ◽  
Kambiz Novin

Background: The aim of this study was to compare the efficacy and hematologic toxicity of cetuximab combined with various types of chemotherapy regimens in patients with KRAS wild-type metastatic colorectal cancer (mCRC). Methods: The response rate, progression-free survival (PFS) and overall survival of the patients were analyzed. Results: In total, 45 patients were included in the study. The overall response rate for the combination of cetuximab and FOLFOX, FOLFIRI and CAPOX was 20, 46 and 30%, respectively, but the differences were not statistically significant. The median PFS for the three groups were 8, 6 and 3.5 months, respectively, but again these differences were not significant. All-grade leukopenia and anemia for the cetuximab plus FOLFOX group were significantly higher than for the other chemotherapy regimens. Conclusion: Our findings suggest that the combination of cetuximab and the three standard chemotherapy regimens resulted in the same outcomes in our patient population of mCRC, with higher hematologic toxicities among the FOLFOX subgroup.


2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 622-622 ◽  
Author(s):  
T. Salek ◽  
E. Sebo ◽  
D. Mazalova ◽  
J. Chovanec ◽  
M. Stresko ◽  
...  

622 Background: Cetuximab is an EGFR-targeting IgG1 monoclonal antibody that is active against EGFR-expressing Kras wild type metastatic colorectal cancer (mCRC) in monotherapy or in combination with chemotherapy. Here, we report efficacy and safety of combination of cetuximab and chemotherapy in patients (pts) with mCRC treated in major cancer centers in Slovakia from 01/2009 to 07/2010. Methods: Forty consecutive pts (28F/12M) with EGFR expressing Kras wild type mCRC (14 pts-rectal cancer, 26 pts-colon cancer) treated with irinotecan-based (29 pts-73%) and oxaliplatin-based (11 pts-27%) chemotherapy were evaluated. Median age was 59 years (44-77).17 pts were pretreated with adjuvant therapy. No of metastatic sites: 1 mts -22 pts (55%), 2 mts-13 pts (32.5%), 3 mts -5pts (12.5%). Median CEA level before therapy 13.5 (1-1,800). Results: 10 pts achieved complete remission (25%), 21 pts partial remission (52.5%), 8pts disease stabilization, 1pt disease progression. Median progression-free survival (mPFS) was 16 months, 1 year survival 65%-95% CI (50-80), median follow-up was 13 months (range 4-20m). The main Gr 3-4 toxicity was skin rash 2pts (5%) and diarrhea 2 pts (5%). Any grade toxicity: rash 32 pts (80%), diarhea 8pts (20%), neuropathy 8pts (20%), weakness 3pts (7.5%), neutropenia 2pts (5%), trombocytopenia 2pts (5%). Conclusions: Our experience confirms the efficacy and acceptable safety profile of combination chemotherapy and cetuximab in first line mCRC patients. No significant financial relationships to disclose.


2012 ◽  
Vol 30 (4_suppl) ◽  
pp. 680-680 ◽  
Author(s):  
Susumu Sogabe ◽  
Satoshi Yuki ◽  
Hideyuki Hayashi ◽  
Hirohito Naruse ◽  
Michio Nakamura ◽  
...  

680 Background: Mutations of the KRAS gene were identified as a prognostic marker in metastatic colorectal cancer(mCRC). Previously reported data suggests that the longer overall survival (OS) observed with bevacizumab(BV) treatment in mCRC is independent of alterations in the KRAS mutation status. So we analyzed efficacy of bevacizumab combined chemotherapy in mCRC relative to KRAS mutation status. Methods: In the retrospective analysis(n=212) of patients treated with BV(HGCSG0801), additional statistical analyses were done with data from KRAS mutation analyses. The Response Evaluation in Solid Tumors (RECIST) criteria version 1.0 was used to assess tumor response. The Kaplan–Meier method was used to determine Progression-free survival(PFS) and OS. Log-rank test was used to compare with mutant or wild-type KRAS in terms of PFS and OS. All statistical tests were performed using SPSS. Results: KRAS status was assessed in 88 patients (41.5%). Response rate was 58.9% with wild-type and 62.5% with mutant KRAS, that was not significant(p=0.823). The median Progression-free survival was 11.5 months with wild-type and 11.5 months with mutant KRAS, that was not significant(p=0.222). And median OS was 31.8 months with wild-type and 27.5 months with mutant KRAS, that was not significant(p=0.760) as well. Similar results were seen among patients with first-line therapy. Conclusions: Bevacizumab provides clinical benefit in patients with mCRC expressing either mutant or wild-type KRAS.


2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 732-732
Author(s):  
Rai Shimoyama ◽  
Tetsuo Kimura ◽  
Toshi Takaoka ◽  
Kazuki Sakamoto ◽  
Shunji Kawamoto ◽  
...  

732 Background: Panitumumab with fluorouracil, leucovorin, and irinotecan (FOLFIRI) in second-line chemotherapy increased objective response rate and prolonged progression-free survival (PFS) versus FOLFIRI alone in patients with wild-type (WT) KRAS metastatic colorectal cancer (mCRC) (Peeters et al, J Clin Oncol 2010). This trial (UMIN000004659) evaluated tolerability and efficacy of combination therapy with irinotecan and S-1, an oral fluoropyrimidine (IRIS) plus panitumumab as second-line chemotherapy in patients with WT KRASmCRC. Methods: Main inclusion criteria were: patients with WT KRAS mCRC refractory to one prior chemotherapy regimen for mCRC, ECOG PS 0-2, and age ≥20 years. Patients received panitumumab (6 mg/m2) and irinotecan (100 mg/m2) on days 1 and 15 and S-1 (40-60 mg according to body surface area) twice daily for 2 weeks, repeated every 4 weeks. The primary endpoint was completion rate of protocol therapy (CRT). The secondary endpoints were response rate (RR), progression-free survival (PFS), and overall survival (OS). Results: Thirty-seven patients were enrolled in 9 centers. The overall CRT was 62.2% (23/37). Most frequent grade 3/4 toxicities were: skin rash (24%), diarrhea (16%), and appetite loss (11%). The overall RR was 32.4% (12/37). Of these, four patients underwent conversion surgery. Median PFS and OS were 9.5 months (95% CI: 3.5-15.4 months) and 20.1 months (95% CI: 16.7-23.2 months), respectively. Conclusions: IRIS plus panitumumab has acceptable toxicity profile and promising efficacy in patients with previously treated WT KRAS mCRC. This regimen can be an additional treatment option for second-line chemotherapy in WT KRAS mCRC. Clinical trial information: UMIN000004659.


2019 ◽  
Vol 37 (35) ◽  
pp. 3401-3411 ◽  
Author(s):  
Dominik P. Modest ◽  
Uwe M. Martens ◽  
Jorge Riera-Knorrenschild ◽  
Jobst Greeve ◽  
Axel Florschütz ◽  
...  

PURPOSE This trial investigated the addition of panitumumab to triplet chemotherapy with fluorouracil/folinic acid, oxaliplatin, and irinotecan (FOLFOXIRI) in a two-to-one randomized, controlled, open-label, phase II trial in patients with untreated RAS wild-type (WT) metastatic colorectal cancer. PATIENTS AND METHODS The primary end point was objective response rate (ORR) according to RECIST (version 1.1). The experimental arm (modified FOLFOXIRI [mFOLFOXIRI] plus panitumumab) was considered active if the ORR was ≥ 75%. The experimental ORR was compared with an estimated ORR of 60% based on historical data, verified by a randomized control group (FOLFOXIRI). The power of the trial was 80%, with a potential type I error of 0.05. Secondary end points included secondary resection rate, toxicity, progression-free survival, and overall survival. RESULTS A total of 63 patients were randomly assigned to the experimental arm and 33 patients to the control arm. The ORR of the mFOLFOXIRI plus panitumumab arm exceeded 75% and was higher when compared with that of FOLFOXIRI (87.3% v 60.6%; odds ratio, 4.469; 95% CI, 1.61 to 12.38; P = .004). The secondary resection rate was improved with the addition of panitumumab (33.3% v 12.1%; P = .02). Progression-free survival was similar in the study arms, whereas overall survival showed a trend in favor of the panitumumab-containing arm (hazard ratio for death, 0.67; 95% CI, 0.41 to 1.11; P = .12). CONCLUSION The addition of panitumumab to mFOLFOXIRI in patients with RAS WT metastatic colorectal cancer improved the ORR and rate of secondary resection of metastases and represents a treatment option in selected and fit patients in need of highly active first-line therapy. Future studies should determine whether the addition of panitumumab to mFOLFOXIRI prolongs survival.


2019 ◽  
Vol 105 (3) ◽  
pp. 243-252 ◽  
Author(s):  
Sara Lonardi ◽  
Guglielmo Nasti ◽  
Daniele Fagnani ◽  
Donatello Gemma ◽  
Libero Ciuffreda ◽  
...  

Aims: BEAWARE investigated the pattern of first-line bevacizumab early interruption in the Italian real-world setting of metastatic colorectal cancer. Methods: A total of 386 patients were followed for 15 months after first-line chemotherapy + bevacizumab start. The rate of bevacizumab interruption for progression or adverse drug reactions (ADRs) constituted the primary endpoint. Results: A total of 78.2% of patients interrupted bevacizumab: 56.6% for progression, 7.3% for ADRs, and 36.1% for other reasons. Median treatment duration was 6.7, 2.5, and 4.6 months, respectively. Median progression-free survival was 10.3 months; however, 35.8% of patients were not progressed and were thus censored at the data cutoff of 15 months, while 21.8% were still receiving bevacizumab. Patients discontinuing for progression/ADRs more frequently had metastases in >1 site ( p = .0001), and a shorter median progression-free survival (6.9 vs 13.9 months, p < .0001). Conclusions: In Italy, first-line bevacizumab is interrupted mainly for progression, only 7.3% due to adverse events, and about one third of cases for other reasons. In clinical practice, the attitude to treat until progression as per guidelines might be implemented. ClinicalTrials.gov Identifier: NCT01609075


2014 ◽  
Vol 32 (3_suppl) ◽  
pp. 642-642
Author(s):  
Nobuaki Ikezawa ◽  
Satoru Iwasa ◽  
Hirokazu Shoji ◽  
Yoshitaka Honma ◽  
Atsuo Takashima ◽  
...  

642 Background: Panitumumab and cetuximab are known to be effective in KRAS wild-type metastatic colorectal cancer (mCRC). However, it is not clear whether panitumumab and irinotecan confers benefit that are comparable to those of cetuximab and irinotecan in patients with KRAS wild-type mCRC previously treated with fluoropyrimidine-, oxaliplatin-, and irinotecan-based regimes. Methods: We analyzed 139 patients who had received panitumumab or cetuximabu combined with irinotecan for KRAS wild-type mCRC previously treated with fluor opyrimidine-, oxaliplatin-, and irinotecan-based regimes.We evaluated and compared efficacy and safety of panitumumab plus irinotecan and cetuximab plus irinotecan. Results: Baseline characteristics were similar for the two groups receving cetuximab pulus irinotecan (n = 97) and panitumumab plus irinotecan (n = 42),respectively.In patients with measurable lesions,the response rate (unconfirmed complete or partial response) were 20% (18/92) in the group receving cetuximab plus irintecan and 34% (14/41) in that receving panitumumab plus irinotecan. Median progression-free survival was 5.7 months in the cetuximab plus irinotecan group versus 4.3 months in the panitumumab plus irinotecan group. Median overall survival was 11.2 months in the cetuximab plus irinotecan group versus 13.6 months in the panitumumab plus irinotecan group. The most common adverse events in the cetuximab plus irinotecan versus panitumumab plus irinotecan groups were all-grade rash acneiform (82% versus 90%), paronychia (61% versus 52%), and grade 3-4 neutropenia (26% versus 19%). Conclusions: Panitumumab or cetuximab plus irinotecan were well tolerated and produced similar response rate and survivals compared to those previous clinical traials.These combinations are cosidered as standard treatment in patients with KRAS wild-type mCRC previously treated with fluoropyrimidine-, oxaliplatin-, and irinotecan-based regimes.


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