scholarly journals Combining Correlated Outcomes and Surrogate Endpoints in a Network Meta-Analysis of Colorectal Cancer Treatments

Cancers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2663
Author(s):  
Tung Hoang ◽  
Jeongseon Kim

This study aimed to investigate the efficacy and safety of systemic therapies in the treatment of unresectable advanced or metastatic colorectal cancer. Predicted hazard ratios (HRs) and their 95% credible intervals (CrIs) for overall survival (OS) were calculated from the odds ratio (OR) for the overall response rate and/or HR for progression-free survival using multivariate random effects (MVRE) models. We performed a network meta-analysis (NMA) of 49 articles to compare the efficacy and safety of FOLFOX/FOLFIRI±bevacizumab (Bmab)/cetuximab (Cmab)/panitumumab (Pmab), and FOLFOXIRI/CAPEOX±Bmab. The NMA showed significant OS improvement with FOLFOX, FOLFOX+Cmab, and FOLFIRI+Cmab compared with that of FOLFIRI (HR = 0.84, 95% CrI = 0.73–0.98; HR = 0.76, 95% CrI = 0.62–0.94; HR = 0.80, 95% CrI = 0.66–0.96, respectively), as well as with FOLFOX+Cmab and FOLFIRI+Cmab compared with that of FOLFOXIRI (HR = 0.69, 95% CrI = 0.51–0.94 and HR = 0.73, 95% CrI = 0.54–0.97, respectively). The odds of adverse events grade ≥3 were significantly higher for FOLFOX+Cmab vs. FOLFIRI+Bmab (OR = 2.34, 95% CrI = 1.01–4.66). Higher odds of events were observed for FOLFIRI+Pmab in comparison with FOLFIRI (OR = 2.16, 95% CrI = 1.09–3.84) and FOLFIRI+Bmab (OR = 3.14, 95% CrI = 1.51–5.89). FOLFOX+Cmab and FOLFIRI+Bmab showed high probabilities of being first- and second-line treatments in terms of the efficacy and safety, respectively. The findings of the efficacy and safety comparisons may support the selection of appropriate treatments in clinical practice. PROSPERO registration: CRD42020153640.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e15034-e15034
Author(s):  
Thierry Landre ◽  
Thomas Aparicio ◽  
Djamel Ghebriou ◽  
Patrick Nicolas ◽  
Cherifa Taleb ◽  
...  

e15034 Background: The clinical benefit of double-front-line therapy (including oxaliplatin or irinotecan or bevacizumab plus 5FU or capecitabine) compared to monotherapy (5FU or capecitabine) in elderly ( > 70 years) patients with metastatic colorectal cancer (MCRC) is controversial. We performed a meta-analysis of published randomized studies. Methods: The selection of the studies was carried out using PubMed with the following keywords: "metastatic colorectal cancer", "elderly", "oxaliplatin", "irinotecan", "bevacizumab", "survival". The efficacy endpoints were overall survival (OS) and progression-free survival (PFS). Hazard Ratios (HRs) with their 95% confidence intervals (CIs) were collected from the studies and pooled. By convention, a HR < 1 was a result in favor of bitherapy. Results: This meta-analysis (MA) included nine studies: three assess irinotecan (FFCD 2001-02, CAIRO and an already published MA); three others assess oxaliplatin (FOCUS2, FFCD 2000-05 and FOLFOX pivotal trial) and the last three ones assess bevacizumab (AVEX, AGITG-MAX and AVF2192g). Our MA included 1600 patients (62% of men). Concerning age, we chose a cut-off of 70 years or a cut-off of 75 years, corresponding to the available data for each study. The performance index (PS) was 0-1 for about 90% of patients, with the exception of FFCD 2001-02 and FOCUS2 which included 30% of patients with PS2. Overall, the addition of bevacizumab to fluoropyrimidin statistically improved both OS and PFS (HR = 0.78; CI: 0.62–0.98 and HR = 0.51; CI: 0.41–0.64, respectively). The addition of oxaliplatin statistically improved PFS (HR = 0.81; CI: 0.67–0.97) but not OS (HR = 0.99; CI: 0.85–1.17) as well as the addition of irinotecan (HR = 0.83; CI: 0.68–1.00 and HR = 1.01; CI: 0.84–1.22, respectively). Conclusions: In previously untreated elderly patients with MCRC, the addition of bevacizumab to fluoropyrimidin appears more effective in terms of OS or PFS than the addition of oxaliplatin or irinotecan.


2019 ◽  
Vol 26 (1) ◽  
Author(s):  
Y. Yang ◽  
R. Chen ◽  
T. Sun ◽  
L. Zhao ◽  
F. Liu ◽  
...  

Background Combined androgen blockade (cab) is a promising treatment modality for prostate cancer (pca). In the present meta-analysis, we compared the efficacy and safety of first-line cab using an antiandrogen (aa) with castration monotherapy in patients with advanced pca.Methods PubMed, embase, Cochrane, and Google Scholar were searched for randomized controlled trials (rcts) published through 12 December 2016. Hazard ratios (hrs) with 95% confidence intervals (cis) were determined for primary outcomes: overall survival (os) and progression-free survival (pfs). Subgroup analyses were performed for Western compared with Eastern patients and use of a nonsteroidal aa (nsaa) compared with a steroidal aa (saa).Results Compared with castration monotherapy, cab using an aa was associated with significantly improved os (n = 14; hr: 0.90; 95% ci: 0.84 to 0.97; p = 0.003) and pfs (n = 13; hr: 0.89; 95% ci: 0.80 to 1.00; p = 0.04). No significant difference in os (p = 0.71) and pfs (p = 0.49) was observed between the Western and Eastern patients. Compared with castration monotherapy, cab using a nsaa was associated with significantly improved os (hr: 0.88; 95% ci: 0.82 to 0.95; p = 0.0009) and pfs (hr: 0.85; 95% ci: 0.73 to 0.98; p = 0.007)—a result that was not achieved with cab using a saa. The safety profiles of cab and monotherapy were similar in terms of adverse events, including hot flushes, impotence, and grade 3 or 4 events, with the exception of risk of diarrhea and liver dysfunction or elevation in liver enzymes, which were statistically greater with cab using an aa.Conclusions Compared with castration monotherapy, first-line cab therapy with an aa, especially a nsaa, resulted in significantly improved os and pfs, and had an acceptable safety profile in patients with advanced pca.


2020 ◽  
Vol 48 (7) ◽  
pp. 030006052092640
Author(s):  
Guan-Li Su ◽  
Yuan-Yuan Wang ◽  
Jin-Cheng Wang ◽  
Hao Liu

Objective We performed this meta-analysis to compare the efficacy and toxicity of regorafenib and TAS-102. Methods Electronic databases were searched to identify studies comparing the efficacy and safety of regorafenib and TAS-102 in patients with chemotherapy-refractory metastatic colorectal cancer using pooled analyses. Results Three clinical trials were included in this analysis. Regarding the reasons for treatment discontinuation, regorafenib was significantly associated with disease progression (odds ratio [OR] = 0.33, 95% confidence interval [CI] = 0.21–0.50) and adverse events (OR = 4.38, 95% CI = 2.69–7.13). However, overall (OR = 0.97, 95% CI = 0.81–1.17) and progression-free survival (OR = 1.01, 95% CI = 0.86–1.18) did not significantly differ between the groups. The most common treatment-related adverse events in the regorafenib group were neutropenia (OR = 0.06, 95% CI = 0.03–0.11), hand–foot syndrome (OR = 50.34, 95% CI = 10.44–242.84), and liver dysfunction (OR = 34.51, 95% CI = 8.30–143.43). Conversely, the incidence of thrombocytopenia did not differ between the two groups. Conclusions Regorafenib and TAS-102 have similar efficacy but different adverse event profiles. Differences in the toxicity profiles of the two drugs will help guide treatment selection.


2022 ◽  
Author(s):  
Nieves Martínez-Lago ◽  
Teresa Calleja Chucla ◽  
Beatriz Alonso de Castro ◽  
Rafael Varela Ponte ◽  
Cristina Reboredo Rendo ◽  
...  

Abstract We evaluated the efficacy and safety of trifluridine/tipiracil (TAS-102) plus bevacizumab in treating refractory metastatic colorectal cancer (mCRC) in a retrospective, observational study. Patients refractory or intolerant to standard therapies received TAS-102 (30–35 mg/m2 twice daily on days 1–5 and days 8–12 every 28 days) plus bevacizumab 5 mg/kg on days 1 and 15. Clinical and pathological characteristics, overall response rate (ORR) and disease control rate (DCR), overall survival (OS) and progression-free survival (PFS) data were collected and analysed. Thirty-five patients were treated from July 2019 to October 2021 (median age 64 years). The majority of patients (68.6%) were receiving TAS-102 plus bevacizumab as third-line treatment. Patients received a median of 4 (range 2–15) cycles of treatment. Among 31 patients evaluable for response (88.6%), ORR and DCR were 3.2% and 51.6%, respectively. After a median 11.6 months’ follow-up, median PFS was 4.3 (95% confidence interval [CI] 3.4–5.1) months and median OS was 9.3 (95% CI 6.6–12.1) months. The most common grade 3–4 toxicities were neutropenia, asthenia and nausea/vomiting, and there were no treatment-related deaths. This real-world study confirms the efficacy and safety of TAS-102 plus bevacizumab in patients with refractory mCRC.


2021 ◽  
Vol 12 ◽  
Author(s):  
Long Ma ◽  
Gang Jin ◽  
Keying Yao ◽  
Yi Yang ◽  
Ruitong Chang ◽  
...  

Objective: To evaluate the efficacy and safety of anti-PD-1/PD-L1 Inhibitors versus docetaxel for non-small cell lung cancer by meta-analysis.Methods: Randomized controlled trials (RCTs) about anti-PD-1/PD-L1 Inhibitors versus docetaxel on the treatment of NSCLC were searched in CNKI, WF, VIP, PubMed, EMBASE, Cochrane Library, and Web of Science databases. Two reviewers independently screened literature, extracted data and evaluated the risk of bias of eligible studies. Meta-analysis was performed by RevMan5.3 software.Results: Compared with the use of docetaxel chemotherapy for NSCLC, the overall survival and progression-free survival of the anti-PD-1/PD-L1 Inhibitors regimen are better [overall survival: (HR= 0.73, 95%CI:0.69∼0.77, P&lt;0.00001], progression-free survival: (HR= 0.89, 95%CI:0.83∼0.94, P&lt;0.00001]), and lower incidence of treatment-related grade 3 or higher adverse events ([OR=0.20, 95% CI: 0.13∼0.31, P&lt;0.00001]).Conclusion: Compared with the docetaxel chemotherapy regimen, the anti-PD-1/PD-L1 Inhibitors has certain advantages in terms of efficacy and safety. The results still need to be confirmed by a multi-center, large sample, and high-quality research.


2021 ◽  
pp. 107815522110179
Author(s):  
Olivia R Court

In the RECOURSE trial which lead to its accreditation, Lonsurf (trifluridine/tipiracil) was shown to extend progression free survival (PFS) by 1.8 months in metastatic colorectal cancer. This Trust audit aims to assess the average quantity of cycles of Lonsurf received by participants and the length of time it extends PFS. Similarly, to identify how many participants required a dose-reduction or experienced toxicities which necessitated supportive therapies. Quantitative data was collected retrospectively from all participants who had received ≥1 cycle of Lonsurf from The Clatterbridge Cancer Centre (CCC) from 2016 until June 2020. Participant electronic patient records were accessed to identify toxicity grading, length of treatment received, the date progression was identified, if dose reductions were applied and if supportive therapies were administered. Lonsurf extends PFS in patients with metastatic colorectal cancer at CCC by 3.0 months (95% CI: 2.73–3.27) and average treatment length was 2.4 months. However, 78 participants (41.5%) received a dose reduction due to toxicities. A total of 955 toxicities were recorded by participants; the most commonly reported toxicities irrespective of grade were fatigue (33.8%), diarrhoea (13.8%) and nausea (12.3%). The most common grade ≥3 toxicities were constipation and infection. The most frequently utilised supportive therapies were loperamide (49.6%) and domperidone (49.1%). Granulocyte colony stimulating factor (GCSF) was required by patients on 5 occasions (0.3%) in total. Lonsurf extends median PFS in patients with metastatic colorectal cancer by 3.0 months. The most common grade ≥3 toxicities which necessitated supportive therapies or a dose reduction were gastrointestinal and infection.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e17552-e17552
Author(s):  
Rodrigo Sanchez-Bayona ◽  
Pablo Tolosa ◽  
Ana Sanchez de Torre ◽  
Alicia Castelo ◽  
Elsa Bernal-Hertfelder ◽  
...  

e17552 Background: In platinum-resistant ovarian cancer treatment, single-agent paclitaxel can be used alone or in combination with bevacizumab. We aimed to assess the efficacy and safety profile of a weekly paclitaxel (WP) scheme in heavily pretreated platinum-resistant high-grade serous ovarian carcinoma. Methods: We retrospectively analyzed 30 adult patients with platinum-resistant high-grade serous ovarian carcinoma treated with WP at our institution between 2015 and 2020. Patients with platinum-resistant ovarian, fallopian tube or primary carcinoma of the peritoneum who had received at least 3 doses of WP (80 mg/m2) alone or in combination with bevacizumab until disease progression or unacceptable toxicity were included in the analysis. Progression-free survival was assessed according to the Response Evaluation Criteria in Solid Tumors version 1.1. Information about toxicity was gathered from medical reports and lab tests. Kaplan-Meier curves and Log-rank test were performed for survival estimates. Results: In our sample, the median age was 68 years (IQR: 60-75) and the median number of previous lines of systemic treatment was 3 (range 1-5). 40% of patients received WP in combination with bevacizumab. The disease control rate was 60.7% (42.9% partial response and 17.8% stable disease). In the overall analysis, the median progression-free survival (mPFS) was 5.0 months (95% CI: 2.0-7.1 months). The presence of ascites significantly shortened the mPFS compared to patients without it (1.1 vs 5.1 months, p < 0.001). Even though the addition of bevacizumab to WP improved the mPFS, the difference was not statistically significant compared to WP alone (7.1 vs 4.06 months, p=0.30). Peripheral neuropathy was the most common adverse event (78% all grades, 18% grade 3). No grade 3 hematologic toxicity was registered. Treatment was discontinued in 6 patients (20%) – 4 due to peripheral neuropathy and two because of toxicoderma. Conclusions: In our sample, WP was an active and safe regimen in heavily pretreated platinum-resistant ovarian carcinoma. WP was well tolerated in elderly patients. The presence of ascites was associated to a shorter PFS in patients treated with WP compared to ascites-free patients.


Author(s):  
Chunhui Jin ◽  
Xiaodan Zhu ◽  
Xiaona Huang ◽  
Tingjie Gong ◽  
Zhipeng Wei ◽  
...  

Aims: To evaluate the efficacy and safety of PD-1/PD-L1 and/or CTLA-4 inhibitors in the treatment of colorectal cancer (CRC) by meta-analysis. Methods: Electronic databases were searched. Eligible studies included investigations of efficacy and safety of anti-PD-1/PD-L1 or anti-CTLA-4 agents in patients with CRC. Corresponding indicators were calculated. Results: A total of 15 articles were included. The pooled objective response rate, overall survival rate, progression-free survival rate and adverse event rate were 33, 56, 46 and 59%, respectively. The objective response rates for CRC with deficient mismatch repair and CRC with proficient mismatch repair were 43 and 3%, respectively, in patients treated with PD-1 inhibitors. Conclusion: The authors' study indicates that PD-1/PD-L1 inhibitors manifest promising clinical responses in the treatment of CRC with deficient mismatch repair with acceptable treatment-related adverse events.


2020 ◽  
Vol 9 (5) ◽  
pp. 1458 ◽  
Author(s):  
Fausto Petrelli ◽  
Alessandro Iaculli ◽  
Diego Signorelli ◽  
Antonio Ghidini ◽  
Lorenzo Dottorini ◽  
...  

Antibiotics (ABs) are common medications used for treating infections. In cancer patients treated with immune checkpoint inhibitors (ICIs), concomitant exposure to ABs may impair the efficacy of ICIs and lead to a poorer outcome compared to AB non-users. We report here the results of a meta-analysis evaluating the effects of ABs on the outcome of patients with solid tumours treated with ICIs. PubMed, the Cochrane Library and Embase were searched from inception until September 2019 for observational or prospective studies reporting the prognoses of adult patients with cancer treated with ICIs and with or without ABs. Overall survival (OS) was the primary endpoint, and progression-free survival (PFS) was the secondary endpoint. The effect size was reported as hazard ratios (HRs) with a 95% confidence interval (CI) and an HR > 1 associated with a worse outcome in ABs users compared to AB non-users. Fifteen publications were retrieved for a total of 2363 patients. In the main analysis (n = 15 studies reporting data), OS was reduced in patients exposed to ABs before or during treatment with ICIs (HR = 2.07, 95%CI 1.51–2.84; p < 0.01). Similarly, PFS was inferior in AB users in n = 13 studies with data available (HR = 1.53, 95%CI 1.22–1.93; p < 0.01). In cancer patients treated with ICIs, AB use significantly reduced OS and PFS. Short duration/course of ABs may be considered in clinical situations in which they are strictly needed.


Rare Tumors ◽  
2018 ◽  
Vol 10 ◽  
pp. 203636131877177 ◽  
Author(s):  
Nam Bui ◽  
Nikhil Kamat ◽  
Vinod Ravi ◽  
Sant Chawla ◽  
Marti Lohman ◽  
...  

Paclitaxel (P) and bevacizumab (B) are agents that provide clinical benefit in advanced angiosarcoma (AS). The objective of this study was to assess the efficacy and safety of P-B in two different scheduled regimens. Patients were to receive P 200mg/m2 IV with B 15mg/kg IV every 21 days (Regimen A) or P 90mg/m2 IV weekly D1, 8, 15 with B 15mg/kg IV D1 of a 28 day cycle (Regimen B) x6 cycles. Maintenance B followed at a dose of 15 mg/kg intravenously once every 21 days. The primary end point was 4 month non-progression rate (NPR). A total of 16 patients were enrolled. 4 month NPR was 62.5% with median overall survival 16 months and median progression free survival 5.06 months. 11 patients made it to cycle 3 and were evaluable for response with 1 CR (9%), 4 PR (36%), 2 SD (18%), and 6 PD (36%). There were ten grade 3 toxicities and four grade 4 toxicities. The breakdown between the two regimens revealed comparable efficacy and safety. Paclitaxel and Bevacizumab is an active regimen in angiosarcoma. Q3 week and weekly paclitaxel appear similar in efficacy and safety.


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