Efficacy and tolerance of gemcitabine and nab-paclitaxel in elderly patients with advanced pancreatic ductal adenocarcinoma

BackgroundThe efficacy and safety of gemcitabine and nab-paclitaxel (GnP) among elderly patients with advanced pancreatic ductal adenocarcinoma (PDAC) remains poorly understood. We aimed to evaluate the safety and efficacy of GnP in this setting.Patients and methodsWe retrospectively included all consecutive patients aged ≥65 years with histologically proven PDAC who received at least one cycle of GnP (January 2014 to May 2018) in four academic centers. The primary endpoints were toxicity and overall survival (OS). Secondary endpoints were progression-free survival (PFS) and objective response rate. We compared patients aged ≥ or <75 years.ResultsThe study included 127 patients; among them 42 (33.1%) were aged ≥ 75 years. Fifty-seven and seventy patients received GnP as the first-line and the second-line treatment or beyond, respectively. Sixty-seven patients had at least one grade 3/4 adverse event, the most frequent being neutropenia and peripheral neuropathy. No deaths were related to toxicity. OS (median, 8.0 months; 95% confidence interval (CI), 5.8–10.2) and PFS (median, 5.5 months; 95% CI, 4.8–6.2) were similar for patients aged <75 or ≥75 years in the whole cohort and among patients receiving GnP as the first-line treatment. Cephalic PDAC, liver metastases, hypoalbuminemia, and GnP received beyond the first-line were associated with a significantly shorter OS on the multivariate analysis.ConclusionGnP is well tolerated and effective in elderly patients with advanced PDAC, even patients aged ≥75 years. The data from daily clinical practice are consistent with the results reported with first-line treatment and highlight the relevance of GnP administration in elderly patients.     

Contrast-enhanced harmonic endoscopic ultrasonography for predicting the efficacy of first-line gemcitabine and nab-paclitaxel chemotherapy in pancreatic cancer

Background and aimsThe purpose of this study was to assess prognosis with different intratumoral vascularity on contrast-enhanced endoscopic harmonic ultrasonography (CH-EUS) in pancreatic cancer patients receiving chemotherapy.MethodsPatients with unresectable pancreatic cancer who underwent CH-EUS before first-line gemcitabine and nab-paclitaxel (GEM and nab-PTX) therapy were classified into four groups according to vascularity on the early and late phases of contrast enhancement: “Group A″, poor on both phases; “Group B″, rich and poor on the early and late phases, respectively; “Group C″, poor and rich on the early and late phases; “Group D″, rich on both phases. Subgroups were compared in terms of progression-free survival (PFS) and overall survival (OS). We also assessed whether the results with CH-EUS correlate with those of contrast-enhanced computed tomography (CE-CT).ResultsOn CH-EUS, 57, 64, 0, and 24 patients were classified into Groups A, B, C, and D, respectively. The median PFS of patients in groups A, B, and D was 3.9, 7.6, and 10.8 months, respectively, and the median OS were 9.5, 13.1, and 18.6 months, respectively. Both PFS and OS were longest in Group D (p < 0.001 and p < 0.001, respectively). The results of CE-CT were consistent with those of CH-EUS, and there was a correlation between CE-CT and CH-EUS.ConclusionsEvaluation of intratumoral vascularity by CH-EUS may be useful for predicting the efficacy of chemotherapy in patients with pancreatic cancer. A better response to GEM and nab-PTX can be expected in patients showing rich vascularity at both the early and late phases.     

Improved prognosis of pancreatic cancer patients with peritoneal metastasis

BackgroundPeritoneal metastasis is one of the most important poor prognostic factors in advanced pancreatic cancer (PC). Whether the prognosis of PC with peritoneal metastasis has improved with the advent of gemcitabine plus nab-paclitaxel (GnP) and modified FOLFIRINOX (mFFX) is uncertain. The aim of this study was to evaluate the improvements in treatment outcomes of PC with peritoneal metastasis.MethodsWe retrospectively investigated consecutive PC patients with peritoneal metastasis treated with chemotherapy at our institution between 2010 and 2019. We compared the clinical characteristics and survival outcomes according to the period of diagnosis (group A, 2010–2014; group B, 2015–2019) and chemotherapy regimen. We also examined the prognostic factors for overall survival (OS).ResultsAmong 180 patients included (GnP 88; mFFX 14; other regimens 78), distant metastasis was confined to the peritoneum in 89 patients. Although group B had a worse performance status compared to group A, median OS was significantly longer in group B. GnP and mFFX showed a significantly higher objective response rate and disease control rate in addition to longer progression free survival and OS compared to other regimens. The administration of GnP or mFFX, performance status, and neutrophil to lymphocyte ratio ≥5 were identified as independent prognostic factors for OS. Furthermore, the amount of ascites and extent of peritoneal metastasis were significantly associated with OS in patients with distant metastasis confined to the peritoneum.ConclusionsThe prognosis of PC with peritoneal metastasis has significantly improved over time with the advent of GnP and mFFX.     

Long-term outcomes of octogenarian pancreatic cancer patients treated with carbon ion radiotherapy

BackgroundPancreatic cancer is a disease of the elderly; patients >65 years are 60% of the cases. Due to multiple comorbidities, treating these patients is challenging. We report the efficacy and safety of carbon ion radiotherapy (C-ion RT) in octogenarians.MethodsWe retrospectively analyzed the cases of 46 pancreatic cancer patients aged ≥80 years (median 83, range 80–97) treated with definitive C-ion RT in 2007–2018 at our institute.ResultsTwenty-five patients (54%) had resectable or borderline-resectable disease; none underwent surgery (because of medical reasons, e.g., age, multiple comorbidities). C-ion RT was delivered with a median dose of 55.2 Gy (RBE) in 12 fractions. The survivors' median follow-up period was 43 (range 19–76) months. The entire cohort's median overall survival (OS) was 15 (95%CI: 14–22) months with a 3-year OS of 20% (95%CI: 11%–35%). On both univariate and multivariate analyses, baseline CA19-9 remained the significant independent OS prognostic factor (p = 0.032). The 3-year local control rate for all patients was 34% (95%CI: 19%–53%). Local failure (n = 25, 54%) was as common as distant relapse (n = 26, 57%); 33% of the patients experienced both local and systemic failure. About 15% underwent re-C-ion RT for infield recurrence; they achieved a median 22-month OS. No patients exhibited grade ≥3 severe acute or late toxicities (including those who received re-C-ion RT).ConclusionsC-ion RT in octogenarians with pancreatic cancer showed promising outcomes with acceptable acute and late toxicities and can be considered a reasonable alternative to radical surgery.     

Gemcitabine as second-line chemotherapy after Folfirinox failure in advanced pancreatic adenocarcinoma: A retrospective study

BackgroundPancreatic adenocarcinoma (PA) is diagnosed in most cases at an advanced stage requiring chemotherapy. Folfirinox is the standard first-line treatment. After Folfirinox failure, gemcitabine alone is routinely used as second-line therapy without data supporting this attitude.AimDetermine the response rate and outcome of patients with advanced PA treated with gemcitabine after Folfirinox failure.MethodsWe retrospectively analyzed all consecutive patients treated with gemcitabine after Folfirinox failure for a locally advanced or metastatic PA between 2009 and 2015. Progression-free survival (PFS) and overall survival (OS) were calculated using the Kaplan–Meier method. Response rate, control rate and tolerability were assessed.Results96 patients were included (male, 51%; median age, 62; performance status (PS) 0–1, 47%). Median duration on gemcitabine was 2.1 months. The overall disease control rate was 40%. Median OS was 3.7 months (95%CI: 2.5–5.2) and median PFS was 2.1 months (95%CI: 2.0–2.6). Reasons for treatment discontinuation were mostly progression (51%). Age at diagnosis and PS were independently associated with OS in multivariate analysis (HR of 1.86; p = 0.0055 and 2.42; p < 0.0001 respectively). 34 patients experienced a grade 3 adverse event.ConclusionsThis study suggests that gemcitabine is not beneficial to all patients failing on Folfirinox first-line therapy and should be restricted to young patients with good PS.     

Phase II trial of capecitabine combined with thalidomide in second-line treatment of advanced pancreatic cancer

BackgroundTo evaluate the efficacy and tolerability of capecitabine combined with thalidomide in patients with advanced pancreatic cancer (APC) who have previously received gemcitabine-based therapy.MethodsA total of 31 patients were recruited prospectively in Shandong Tumor Hospital from May 2007 to April 2009. Capecitabine was offered to patients twice a day at a dose of 1250 mg/m² for 14-day then followed by 7-day rest. Thalidomide was administered 100 mg/day without interruption until disease progression or occurrence of unacceptable toxicity.ResultsTwo patients presented partial response (PR), 11 patients showed stable disease (SD) and eighteen patients presented progressive disease (PD). The median progression-free survival (PFS) was 2.7 months (95% confidence interval (CI), 2.4–3.3) and the median overall survival (OS) was 6.1 months (95% CI, 5.3–6.9). In the subgroup analysis, PFS had a significant difference between the serum CA19–9 level decreasing >25% and decreasing <25%, with 3.0 months (95% CI, 2.5–3.6) and 2.5 months (95% CI, 1.8–3.2), (Log Rank = 0.02), respectively. Hematological toxicity included leukocytopenia, anemia and neutropenia. Non-hematological toxicities included diarrhea, skin rash, nausea/vomiting, hand-foot syndrome, fatigue, dizziness, drowsiness and constipation.ConclusionCapecitabine combined with thalidomide is a well-tolerated second-line regimen, in patients with APC refractory to gemcitabine.     

Clinical activity of a new regimen combining gemcitabine and alemtuzumab in high‐risk relapsed/refractory chronic lymphocytic leukemia patients

Optimal treatment strategies are lacking in relapsed/refractory (R/R) chronic lymphocytic leukemia (CLL). Gemcitabine has shown activity and acceptable safety profile in B‐cell lymphomas. We present a retrospective case review of gemcitabine and alemtuzumab, every 21 d (for up to six courses) in 27 community‐based patients with high‐risk R/R CLL. Median age was 70 yr (44–83 yr), 55% patients had Binet stage C, deletion 17p (del(17p)) and/or deletion 11q (del(11q)) were found in 65% and 27%, bulky disease in 55.5%, and fludarabine‐refractoriness in 48% of cases, respectively. Overall response rate was 63% (29.6% clinical CR and 33.4% PR). At a median follow‐up of 31 months, median PFS and OS were 15.4 and 24 months. In multivariate analysis, median OS is influenced by prior lines of treatment = 3 and bulky disease. Combination of alemtuzumab and gemcitabine appears to be an active, easy to administrate treatment in routine practice, high‐risk R/R CLL patients.     

SOCRATE-PRODIGE 55 trial: A randomized phase II study to evaluate second-line ramucirumab alone or with paclitaxel in older patients with advanced gastric cancer

IntroductionPatients ≥ 70 years old constitute 40% of patients with advanced gastric cancer (GC). Ramucirumab plus Paclitaxel is a therapeutic option validated in the second-line treatment of advanced GC, but as older patients are at higher risk of severe toxicity, due to comorbidities and/or frailty, we aimed to evaluate second-line Ramucirumab alone or combined with Paclitaxel in terms of overall survival (OS) and quality of life (QoL) in patients ≥ 70 years-old with advanced GC.MethodsIn this multicenter, randomized, open-label, non-comparative, prospective phase II clinical trial, the main inclusion criteria are: patients ≥ 70 years old, with advanced GC having progressed after first-line chemotherapy or in the six months following the last administration of adjuvant chemotherapy, with WHO performance status <2. They are randomized to receive either ramucirumab alone (arm A) or ramucirumab plus Paclitaxel (arm B). The primary endpoint is 6-month OS and QoL evaluated with the EORTC QLQ-ELD14 questionnaire. The secondary endpoints include other parameters of QoL, time to definitive deterioration (TTDD) in QoL and TTDD in autonomy, treatment toxicities, other parameters of survival and disease control, identification of geriatric and nutritional prognostic scores and predictive factors of treatment safety and efficacy. OS of 60% is expected at 6 months (H0:40%). Using a Simon-minimax design, with one-sided α risk of 2% and 80% power for OS, and considering 5% lost to follow-up, it is necessary to randomize 56 patients in each arm.PerspectivesAs older patients are at higher risk of chemotherapy toxicity, ramucirumab alone could be an interesting alternative to Paclitaxel plus ramucirumab, as a second-line therapy for patients ≥ 70 years old with advanced GC, and needs to be evaluated.     

Clinico-pathological correlates and survival outcomes in 214 resected ampullary adenocarcinomas – are outcomes different in intestinal and pancreatobiliary subtypes with adjuvant gemcitabine?

BackgroundEvidence suggests that intestinal type (IT) and pancreatobiliary (PB) subtypes of ampullary adenocarcinoma (AC) may have different outcomes. The current study evaluated differences in outcomes between these subtypes and the benefit of adjuvant chemotherapy (AT).MethodsA prospectively maintained database of patients who underwent upfront resection for AC from January 2012 to March 2016 was conducted. A dedicated pathologist reported differentiation between IT and PB subtypes.Results214 patients were included for analysis: 105 PB subtype and 109 IT subtype. With a median follow up of 46.3 months, estimated 4 year overall survival (OS) was 65.8%. In patients with stage II–III disease, lymph-node ratio (LNR) < 0.2 [Not reached (NR) vs. 30.72 months; p = 0.002], absence of perineural invasion (PNI) (NR vs. 31.61 months; p = 0.032) and AT (gemcitabine – 96.1%) (NR vs. 22.28 months) were prognostic for superior OS. There was no difference in OS between IT and PB subtypes, but both subtypes with stage II–III disease benefitted from AT statistically as compared to observation (IT: NR vs. 28.62 months; PB: 18.46 months vs. 58.09 months; p < 0.001).ConclusionsAC-IT and AC-PB did not have a different OS when treated with resection and adjuvant gemcitabine, though adjuvant therapy benefitted both subtypes individually.     

Safety and outcomes of new generation hormone-therapy in elderly chemotherapy-naive metastatic castration-resistant prostate cancer patients in the real world

BackgroundAbiraterone acetate and enzalutamide are standard treatments for chemotherapy-naive metastatic castration-resistant prostate cancer (CN-mCRPC). The purpose of this study was to evaluate the effectiveness and safety of these medications in elderly (≥ 75 years old) compared with young CN-mCRPC patients in a real-world clinical setting. Secondarily, we explored the survival prognostic value of different anatomo-clinical factors in elderly group.MethodsIn this retrospective observational multicentre study, we included 134 consecutive CN-mCRPC patients, 64 young and 70 elderly men, who had received AA or Enz.ResultsWe did not find significant differences in treatment duration [16.6 months, (95% CI 9–24.2 months) vs. 16.8 months (95% CI: 6.3–27.2 months); p = 0.926] and overall survival [median not reached vs. 23.3 months (95% CI 10.2–36.3 months); p = 0.131] between the young and elderly groups. In elderly group, the only predictors of overall survival with AA or Enz were good ECOG performance status and high G8 score. Adverse events of grade ≥3 was similar in elderly group (12.9%) and in the young group (15.6%). Treatment was discontinued due to AEs in 6.3% of young group and 18.6% of elderly group.ConclusionsEffectiveness and safety of treatment of CN-mRCPC with Abiraterone acetate and enzalutamide were similar in older and younger patients, although treatment discontinuation due to AEs was more frequent in the older age group. In addition to ECOG PS, assessment using specific geriatric scales as G8 screening tool could help to identify patients aged ≥75 who would most benefit from treatment with new-generation hormone therapy.     

First-line chemotherapy for metastatic breast cancer in patients ≥75 years: a retrospective single-centre analysis

Data on chemotherapy for elderly patients with metastatic breast carcinoma (MBC) are limited. We performed a 7-year retrospective analysis of MBC patients at our institution receiving first-line chemotherapy aged ≥75 years. Of 117 patients, 103 received monotherapy (67 capecitabine, 29 vinorelbine, 5 docetaxel, 2 liposomal doxorubicin) and 14 received polychemotherapy (12 anthracycline-based, 2 vinorelbine–gemcitabine). Chemotherapy demonstrated acceptable tolerability. Median progression-free survival (PFS) and overall survival (OS) from initiation of chemotherapy were 6.2 months and 13.8 months, respectively. At 2 years, 25% of patients were alive; however, 25% died within 3 months of beginning chemotherapy. Independent prognostic factors for longer PFS were good performance status, absence of visceral disease and capecitabine treatment. Good performance status and lack of visceral disease were also significant for OS. These results suggest that palliative chemotherapy should not be systematically excluded in this setting, but should be carefully discussed as it appears to be feasible with apparent benefit in selected patients.     

Comparison of the efficacy and the toxicity between gemcitabine with capecitabine (GC) and gemcitabine with erlotinib (GE) in unresectable pancreatic cancer

Objective

We retrospectively compared the efficacy and toxicity of gemcitabine combination with capecitabine or erlotinib in unresectable pancreatic cancer to know whether the combination with cytotoxic and target agent has more benefit comparing to combination of cytotoxic agents.

Methods

Fifty-three patients with unresectable pancreatic cancer, treated with gemcitabine and capecitabine (GC) or gemcitabine and erlotinib (GE) as first line between October 2006 and July 2010, were reviewed. In GC group, patients were treated with gemcitabine 1,000?mg/m² on days 1, 8, and capecitabine 1,300?mg/m² bid was administered on days 1–14, repeated every 21 days. In GE group, gemcitabine was given at 1,000?mg/m² I.V for 30?min on days 1,8,15, and erlotinib was taken orally at 100?mg through days 1–28, repeated every 28?days.

Results

Response rate was similar, 23.5?% in GE and 21.1?% in GC, but GC had better disease control rate with 73.7?% than GE with 52.9?%. GC also showed longer PFS and OS (5.37 and 14.43?months) than GE (2.63 and 6.23?months) (p?=?0.032 for PFS and 0.002 for OS). In toxicity profiles, GC had more hematologic toxicities and GE had more non-hematologic toxicities.

Conclusions

The combination with cytotoxic agents seems to have better efficacy and clinical outcome than combination with cytotoxic agent and target agent. The new combination should be developed for the treatment for advanced pancreatic cancer.     

Tailored adjuvant gemcitabine versus 5-fluorouracil/folinic acid based on hENT1 immunohistochemical staining in resected pancreatic ductal adenocarcinoma: A biomarker stratified prospective trial

BackgroundThe study aimed to evaluate the clinical outcomes of tailored adjuvant chemotherapy according to human equilibrative nucleoside transporter 1 (hENT1) expression in resected pancreatic ductal adenocarcinoma (PDA).MethodsPatients who underwent pancreatectomy for PDA were enrolled prospectively. According to intra-tumoral hENT1 expression, the high hENT1 (≥50%) group received gemcitabine and the low hENT1 (<50%) group received 5-fluorouracil plus folinic acid (5-FU/FA). The propensity score-matched control consisted of patients who received hENT1-independent adjuvant chemotherapy. The primary outcome was recurrence free survival (RFS) and the secondary outcomes were overall survival (OS) and toxicities.ResultsBetween May 2015 and June 2017, we enrolled 44 patients with resected PDA. During a median follow-up period of 28.5 months, the intention-to-treat population showed much longer median RFS [22.9 (95% CI, 11.3–34.5) vs. 10.9 (95% CI, 6.9–14.9) months, P = 0.043] and median OS [36.2 (95% CI, 26.5–45.9) vs. 22.1 (95% CI, 17.7–26.6) months, P = 0.001] compared to the controls. Among 5 patients in the low hENT1 group who discontinued treatment, 2 patients receiving 5-FU/FA discontinued treatment due to drug toxicities (febrile neutropenia and toxic epidermal necrolysis).ConclusionTailored adjuvant chemotherapy based on hENT1 staining provides excellent clinical outcomes among patients with resected PDA.Clinical trial registrationclinicaltrials.gov identifier: NCT02486497.     

Clinical outcomes of imatinib dose escalation versus sunitinib in first-line imatinib-failure gastrointestinal stromal tumour

Abstract

Aim: The majority of available data on the clinical efficacy of sunitinib in patients with imatinib-resistant or -intolerant gastrointestinal stromal tumours (GISTs) are from studies of western populations. We investigated the clinical outcomes of imatinib dose escalation versus sunitinib in first-line imatinib-failure Asian GIST patients to further guide clinical treatment.

Methods: Patients received imatinib dose escalation and a shift to sunitinib (Group A) or a direct shift to sunitinib (Group B). The objective tumour response was assessed according to Choi’s criteria. Progression-free survival (PFS) and overall survival (OS) were calculated. The relationship between genetic mutation and survival was analysed.

Results: In total, 40 patients who fulfilled the inclusion criteria were recruited. The differences in survival between Group A and Group B were not significant for PFS (p?=?.776) or OS (p?=?.219). For patients with KIT exon 11 mutation, a trend towards a better PFS was found in Group B (p?=?.122), OS of Group B was better than Group A (p?=?.013). The median PFS and OS of sunitinib treatment were 8 and 24 months, respectively, and a clinical benefit was observed in 80%. Patients with KIT exon 11 mutations had better PFS compared to those with KIT exon 9 mutations or wild-type GISTs (p?=?.017, p?=?.040, respectively).

Conclusions: Both imatinib dose escalation and sunitinib were optional in Asian patients after failure of first-line imatinib, and patients with KIT exon 11 mutation benefited more from a direct shift to sunitinib.     

Negative prognostic impact of sarcopenia before and after neoadjuvant chemotherapy for pancreatic cancer

ObjectivesTo elucidate the prognostic impact of sarcopenia before and after neoadjuvant chemotherapy (NAC) for pancreatic cancer (PC).MethodsWe retrospectively studied 75 consecutive PC patients who underwent neoadjuvant gemcitabine plus S-1 combination therapy followed by pancreatectomy between 2008 and 2016. According to the skeletal muscle volume index (SMI), the patients were divided into the muscle attenuation group (MAG) and normal group (NG) before or after NAC. Prognostic factors for overall survival (OS) were analyzed by Cox proportional hazards models.ResultsThe MAG showed significantly poorer OS than the NG before and after NAC. Pre-NAC, median OS was 20.0 months in the MAG versus 49.0 months in the NG (p = 0.006). Post-NAC, median OS was 21.3 months in the MAG versus 48.8 months in the NG (p = 0.014). Multivariate analysis, excluding muscle attenuation after NAC because of confounding factors and lower hazard ratio (2.08, 95% confidence interval: 1.14–3.78, p = 0.016) than that before NAC (2.14, 1.23–3.70, p = 0.007) by univariate analysis, revealed the following independent prognostic factors: muscle attenuation pre-NAC (2.25, 1.26–4.05, p = 0.007); borderline resectability (1.96, 1.04–3.69, p = 0.038); operative blood loss (2.60, 1.38–4.88, p = 0.003); and distant metastasis (3.31, 1.40–7.82, p = 0.006).ConclusionsSarcopenia before and after NAC for PC is suggested to be a poor prognostic factor, with a stronger impact before than after NAC.     

Prolonged survival in patients with hand-foot skin reaction secondary to cooperative sorafenib treatment

BACKGROUNDSorafenib is an oral drug that prolongs overall survival (OS) in patients with hepatocellular carcinoma. Adverse events, including hand-foot skin reaction (HFSR), lead to permanent sorafenib discontinuation.AIMTo clarify the association between interventions for adverse events and patient prognosis.METHODSWe performed a retrospective, multicenter study of patients treated with sorafenib monotherapy between May 2009 and March 2018. We developed a mutual cooperation system that was initiated at the start of sorafenib treatment to effectively manage adverse events. The mutual cooperation system entailed patients receiving consultations during which pharmacists provided accurate information about sorafenib to alleviate the fear and anxiety related to adverse events. We stratified the patients into three groups: Group A, patients without HFSR but with pharmacist intervention; Group B, patients with HFSR and pharmacist interventions unreported to oncologists (nonmutual cooperation system); and Group C, patients with HFSR and pharmacist interventions known to oncologists (mutual cooperation system). OS and time to treatment failure (TTF) were evaluated using the Kaplan-Meier method.RESULTSWe enrolled 134 patients (Group A, n = 41; Group B, n = 30; Group C, n = 63). The median OS was significantly different between Groups A and C (6.2 vs 13.9 mo, p < 0.01) but not between Groups A and B (6.2 vs 7.7 mo, P = 0.62). Group A vs Group C was an independent OS predictor (HR, 0.41; 95%CI: 0.25-0.66; P < 0.01). In Group B alone, TTF was significantly lower and the nonadherence rate was higher (P < 0.01). In addition, the Spearman’s rank correlation coefficients between OS and TTF in each group were 0.41 (Group A; P < 0.01), 0.13 (Group B; P = 0.51), and 0.58 (Group C; P < 0.01). There was a highly significant correlation between OS and TTF in Group C. However, there was no correlation between OS and TTF in Group B.CONCLUSIONThe mutual cooperation system increased treatment duration and improved prognosis in patients with HFSR. Future prospective studies (e.g., randomized controlled trials) and improved adherence could help prevent OS underestimation.     

吉西他滨单药及联合顺铂治疗老年非小细胞肺癌临床疗效观察

目的本研究旨在分析年龄≥70岁的晚期非小细胞肺癌（non-small cell lung cancer,NSCLC）患者使用吉西他滨联合铂类化疗或吉西他滨单药化疗的疗效和毒性。方法选取≥70岁Ⅱ～Ⅳ期不能手术,并且东部肿瘤协作组（eastern cooperative oncology group,ECOG）体力状态评分（performance status,PS）为0～1分的NSCLC患者83例,仅用吉西他滨的单药化疗组40例,吉西他滨联合顺铂的联合化疗组43例,主要的研究终点为无进展生存期（progression free survival,PFS）。结果单药组患者平均年龄（74．75±1．72）岁,29例（占72.5％）患者有合并症,平均完成4．65个周期化疗。总有效率（overall response rate,ORR）为25％,疾病控制率（disease control rate,DCR）为70％,PFS为4月;联合组平均年龄（75．72±1．29）岁,28例（占65．1％）患者有合并症,平均完成4．02个周期化疗。ORR为39．5％,DCR为79．1％,PFS为6月。2组间差异有统计学意义（P〈0．05）。联合组不良反应更重。结论联合组疗效优于单药组,但Ⅲ-Ⅳ度不良反应发生率也较单药组高。吉西他滨联合铂类化疗在具有良好体力状态的≥70岁老年人是一种有效的治疗方案,并且具有可接受的毒性水平。     

P-Glycoprotein Expression in Acute Myeloid Leukaemia Cells at Diagnosis: Its relationship to Daunorubicin or Idarubicin Induction Therapy and Survival; Malignancy

We investigated the expression of P-glycoprotein (P-gp) in 50 adults with de novo diagnosed acute myeloid leukaemia (AML) and the relationship between presence of P-gp in leukaemic cells and efficacy, as remission induction and survival rate, of two different anthracyclines, daunorubicin (DNR) and idarubicin (IDR). We found that 30 out of 50 patients (60%) were negative (Group 1) and 20 (40%) were positive (Group 2) for P-gp expression evaluated by mean of MRK16 MoAb using a cut-off of 10% positive cells. Thirty-five out of 50 patients (70%) obtained complete remission (CR); depending on P-gp expression, the CR rate was 80% for group 1 and 45% for group 2 (p < 0.005). The median duration of overall survival was 20 months for patients in Group 1 as compared with 10 months for patients of Group 2 (p < 0.005). Regarding the anthracycline used, no significant difference in CR was observed in patients of Group 1 (75% of CR with DNR vs. 90% with IDR); Group 2 obtained 40% of CR with DNR vs. 70% with IDR (p < 0.005). The median duration of overall survival (OS) with the two regimens was comparable in Group 1, while it was significantly longer in patients of Group 2 treated with IDR compared with DNR regimen (p < 0.005). These results confirm the prognostic value of P-gp expression in AML at first appearance and we suggest that idarubicin could be a valid anthracycline drug in the treatment of AML to be evaluated as potential drug of choice in patients with primary or drug-induced multidrug resistance.     

Monitoring of CA19-9 and SPan-1 can facilitate the earlier confirmation of progressing pancreatic cancer during chemotherapy

BackgroundMeasurement of objective response to chemotherapy using imaging modalities is sometimes difficult in pancreatic cancer (PC). We aimed to verify whether monitoring of serum tumor markers (TMs), namely carcinoembryonic antigen, CA19-9, DUPAN-2, SPan-1, can facilitate earlier confirmation of treatment failure.MethodsMonitoring of serum TMs and computed tomography were performed every 4 weeks until progression of disease in 90 patients with PC undergoing gemcitabine therapy. In Group A (January 2006–October 2007), we analyzed the fluctuation rates of TMs with high pretreatment positive rates, and defined the criteria of progressive disease under TM monitoring (TM-PD). In Group B (November 2007–October 2008), we calculated the time to progression (TTP) under this TM-PD criteria, which was compared with the TTP under the RECIST criteria.ResultsCA19-9 and SPan-1 had the highest pretreatment positive rates: 83% and 90%, respectively. In Group A (CA19-9, n = 38; SPan-1, n = 36), TM-PD criteria were defined as follows: fluctuation rates were ≥25% for a month or ≥10% for 2 consecutive months in CA19-9, and ≥10% for a month in SPan-1. In Group B (CA19-9, n = 18; SPan-1, n = 17), under these criteria, one-month earlier confirmation of treatment failure was feasible in 61% by CA19-9 and 59% by SPan-1. Furthermore, the combination could facilitate this determination in 72% (35/49), significantly better than CA19-9 alone (P = 0.004).ConclusionMonitoring of serum CA19-9 and SPan-1 is helpful for earlier confirmation of treatment failure during gemcitabine therapy in PC.     

A systemic inflammation response index (SIRI) correlates with survival and predicts oncological outcome for mFOLFIRINOX therapy in metastatic pancreatic cancer

ObjectivesSystemic inflammatory response and survival has not been evaluated as a predictive factor of chemotherapy in metastatic pancreatic cancer. The aim of this study was to evaluate the prognostic and predictive value of a baseline Systemic Inflammation Response Index (SIRI) in metastatic pancreatic cancer.MethodsRetrospective study of 164 metastatic pancreatic cancer patients. Associations between overall survival (OS), progression free survival (PFS), chemotherapy and SIRI were analyzed. SIRI is defined by neutrophil x monocyte/lymphocyte 10⁹/L.ResultsMedian age 66 years. 22 (13%) received mFOLFIRINOX, 59 (36%) gemcitabine + nab-paclitaxel, 40 (24%) gemcitabine, 13 (8%) other regimens and 30 (18%) had not received treatment. Patients with SIRI<2.3 × 10⁹/L showed a statistically significant improvement in OS compared to SIRI≥2.3 × 10⁹/L [16 months versus 4.8 months, Hazard Ratio (HR) 2.87, Confidence Interval (CI) 95% 2.02–4.07, p < 0.0001] that was confirmed in multivariate analysis. In addition, patients with SIRI<2.3 × 10⁹ showed a longer PFS (12 versus 6 months, HR 1.92, IC 95% 1.314–2.800, P = 0.001). Furthermore, we observed that patients with SIRI ≥2.3 × 10⁹/L were more likely to benefit from mFOLFIRINOX therapy. Patients with an elevated SIRI treated with mFOLFIRINOX versus gemcitabine plus nab-paclitaxel and gemcitabine showed a clinically and statistically significant difference in median OS of 17 months compared to 6 and 4 months respectively (p < 0.001). Conversely, the difference was not clinically significant in the SIRI<2.3 × 10⁹/L subgroup: 15.9 months versus 16.5 and 16, respectively.ConclusionAn elevated SIRI (≥2.3 × 10⁹/L) was an independent prognostic factor for patients with metastatic pancreatic cancer, warranting prospective evaluation.