1
|
Tabernero J, Yoshino T, Stintzing S, de Gramont A, Gibbs P, Jonker DJ, Nygren P, Papadimitriou C, Prager GW, Tell R, Lenz HJ. A Randomized Phase III Study of Arfolitixorin versus Leucovorin with 5-Fluorouracil, Oxaliplatin, and Bevacizumab for First-Line Treatment of Metastatic Colorectal Cancer: The AGENT Trial. CANCER RESEARCH COMMUNICATIONS 2024; 4:28-37. [PMID: 38059497 PMCID: PMC10765772 DOI: 10.1158/2767-9764.crc-23-0361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
PURPOSE Suboptimal treatment outcomes with 5-fluorouracil (5-FU)/folate, the standard of care for metastatic colorectal cancer (mCRC), have generated interest in optimizing the folate. Arfolitixorin ([6R]-5,10-methylene-tetrahydrofolate) is an immediately active folate and may improve outcomes over the existing standard of care (leucovorin). EXPERIMENTAL DESIGN AGENT was a randomized, phase III study (NCT03750786). Patients with mCRC were randomized to arfolitixorin (120 mg/m2 given as two intravenous bolus doses of 60 mg/m2) or leucovorin (400 mg/m2 given as a single intravenous infusion) plus 5-FU, oxaliplatin, and bevacizumab. Assessments were performed every 8 weeks. The primary endpoint was the superiority of arfolitixorin for overall response rate (ORR). RESULTS Between February 2019 and April 2021, 490 patients were randomized (245 to each arm). After a median follow-up of 266 days, the primary endpoint of superiority for ORR was not achieved (48.2% for arfolitixorin vs. 49.4% for leucovorin, Psuperiority = 0.57). Outcomes were not achieved for median progression-free survival (PFS; 12.8 and 11.6 months, P = 0.38), median duration of response (12.2 and 12.9 months, P = 0.40), and median overall survival (23.8 and 28.0 months, P = 0.78). The proportion of patients with an adverse event of grade ≥3 severity was similar between arms (68.7% and 67.2%, respectively), as was quality of life. BRAF mutations and MTHFD2 expression were both associated with a lower PFS with arfolitixorin. CONCLUSIONS The study failed to demonstrate clinical benefit of arfolitixorin (120 mg/m2) over leucovorin. However, it provides some useful insights from the first-line treatment setting, including the effect of gene expression on outcomes. SIGNIFICANCE This phase III study compared arfolitixorin, a direct-acting folate, with leucovorin in FOLFOX plus bevacizumab in mCRC. Arfolitixorin (120 mg/m2) did not improve the ORR, potentially indicating a suboptimal dose.
Collapse
Affiliation(s)
- Josep Tabernero
- Vall d'Hebron Hospital Campus and Institute of Oncology (VHIO), IOB-Quiron, Barcelona, Spain
| | - Takayuki Yoshino
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Sebastian Stintzing
- Department of Hematology, Oncology and Cancer Immunology, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Aimery de Gramont
- Institute Hospitalier Franco-Britannique, Oncologie médicale, Levallois-Perret, France
| | - Peter Gibbs
- Western Health – Sunshine Hospital, Medical Oncology, St. Albans, Victoria, Australia
| | - Derek J. Jonker
- Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Canada
| | - Peter Nygren
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Christos Papadimitriou
- Oncology Unit, “Aretaieion” University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | - Heinz-Josef Lenz
- Division of Medical Oncology and Colorectal Cancer, Keck School of Medicine, University of Southern California, Los Angeles, California
| |
Collapse
|
2
|
Hofmann FO, Heinemann V, D’Anastasi M, Gesenhues AB, Hesse N, von Weikersthal LF, Decker T, Kiani A, Moehler M, Kaiser F, Heintges T, Kahl C, Kullmann F, Scheithauer W, Link H, Modest DP, Stintzing S, Holch JW. Standard diametric versus volumetric early tumor shrinkage as a predictor of survival in metastatic colorectal cancer: subgroup findings of the randomized, open-label phase III trial FIRE-3 / AIO KRK-0306. Eur Radiol 2023; 33:1174-1184. [PMID: 35976398 PMCID: PMC9889429 DOI: 10.1007/s00330-022-09053-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 05/16/2022] [Accepted: 07/24/2022] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Early tumor shrinkage (ETS) quantifies the objective response at the first assessment during systemic treatment. In metastatic colorectal cancer (mCRC), ETS gains relevance as an early available surrogate for patient survival. The aim of this study was to increase the predictive accuracy of ETS by using semi-automated volumetry instead of standard diametric measurements. METHODS Diametric and volumetric ETS were retrospectively calculated in 253 mCRC patients who received 5-fluorouracil, leucovorin, and irinotecan (FOLFIRI) combined with either cetuximab or bevacizumab. The association of diametric and volumetric ETS with overall survival (OS) and progression-free survival (PFS) was compared. RESULTS Continuous diametric and volumetric ETS predicted survival similarly regarding concordance indices (p > .05). In receiver operating characteristics, a volumetric threshold of 45% optimally identified short-term survivors. For patients with volumetric ETS ≥ 45% (vs < 45%), median OS was longer (32.5 vs 19.0 months, p < .001) and the risk of death reduced for the first and second year (hazard ratio [HR] = 0.25, p < .001, and HR = 0.39, p < .001). Patients with ETS ≥ 45% had a reduced risk of progressive disease only for the first 6 months (HR = 0.26, p < .001). These survival times and risks were comparable to those of diametric ETS ≥ 20% (vs < 20%). CONCLUSIONS The accuracy of ETS in predicting survival was not increased by volumetric instead of diametric measurements. Continuous diametric and volumetric ETS similarly predicted survival, regardless of whether patients received cetuximab or bevacizumab. A volumetric ETS threshold of 45% and a diametric ETS threshold of 20% equally identified short-term survivors. KEY POINTS • ETS based on volumetric measurements did not predict survival more accurately than ETS based on standard diametric measurements. • Continuous diametric and volumetric ETS predicted survival similarly in patients receiving FOLFIRI with cetuximab or bevacizumab. • A volumetric ETS threshold of 45% and a diametric ETS threshold of 20% equally identified short-term survivors.
Collapse
Affiliation(s)
- Felix O. Hofmann
- Department of Radiology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany ,Department of General, Visceral and Transplantation Surgery, University Hospital, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany ,German Cancer Consortium (DKTK), partner site Munich, and German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Volker Heinemann
- German Cancer Consortium (DKTK), partner site Munich, and German Cancer Research Centre (DKFZ), Heidelberg, Germany ,Department of Medicine III, Comprehensive Cancer Center Munich, University Hospital Grosshadern, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany
| | - Melvin D’Anastasi
- Department of Radiology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany ,Mater Dei Hospital, University of Malta, Triq tal-Qroqq, Msida, MSD2090 Malta
| | - Alena B. Gesenhues
- Department of Radiology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany
| | - Nina Hesse
- Department of Radiology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany
| | | | | | - Alexander Kiani
- Department of Medicine IV, Klinikum Bayreuth GmbH, Bayreuth, Germany ,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Markus Moehler
- Department of Internal Medicine I, University Medical Center Mainz, Mainz, Germany
| | | | | | - Christoph Kahl
- Department of Hematology, Oncology and Palliative Care, Klinikum Magdeburg gGmbH, Magdeburg, Germany
| | - Frank Kullmann
- Department of Internal Medicine I, Hospital Weiden, Weiden, Germany
| | - Werner Scheithauer
- Department of Internal Medicine I and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Hartmut Link
- Department of Medicine I, Westpfalz-Klinikum GmbH, Kaiserslautern, Germany
| | - Dominik P. Modest
- Medical Department of Hematology, Oncology and Cancer Immunology (CCM), Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Sebastian Stintzing
- Medical Department of Hematology, Oncology and Cancer Immunology (CCM), Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Julian W. Holch
- German Cancer Consortium (DKTK), partner site Munich, and German Cancer Research Centre (DKFZ), Heidelberg, Germany ,Department of Medicine III, Comprehensive Cancer Center Munich, University Hospital Grosshadern, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany
| |
Collapse
|
3
|
Ribero D, Aprile G. Preventing Futile Liver Resection: Biology Should be Central in Patients' Selection. Ann Surg Oncol 2022; 29:5857-5858. [PMID: 35622182 DOI: 10.1245/s10434-022-11952-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 03/26/2022] [Indexed: 11/18/2022]
Affiliation(s)
- Dario Ribero
- Department of Surgery Multimedica IRCCS, Milan, Italy.
| | - Giuseppe Aprile
- Department of Clinical Oncology, ULSS8 Berica, Vicenza, Italy
| |
Collapse
|
4
|
Salem R, Li D, Sommer N, Hernandez S, Verret W, Ding B, Lencioni R. Characterization of response to atezolizumab + bevacizumab versus sorafenib for hepatocellular carcinoma: Results from the IMbrave150 trial. Cancer Med 2021; 10:5437-5447. [PMID: 34189869 PMCID: PMC8366100 DOI: 10.1002/cam4.4090] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/19/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND IMbrave150 is a phase III trial that assessed atezolizumab + bevacizumab (ATEZO/BEV) versus sorafenib (SOR) in patients with unresectable hepatocellular carcinoma (HCC) and demonstrated a significant improvement in clinical outcomes. Exploratory analyses characterized objective response rate (ORR), depth (DpR), and duration of response (DoR), and patients with a complete response (CR). METHODS Patients were randomized 2:1 to intravenous ATEZO (1200 mg) + BEV (15 mg/kg) every 3 weeks or oral SOR (400 mg) twice daily. Tumors were evaluated using Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) and HCC-modified RECIST (mRECIST). ORR by prior treatment and largest baseline liver lesion size, DoR, time to response (TTR), and complete response (TTCR) were analyzed. RESULTS For both criteria, responses favored ATEZO/BEV versus SOR regardless of prior treatment and in patients with lesions ≥3 cm. Median TTR was 2.8 months per RECIST 1.1 (range: 1.2-12.3 months) and 2.8 months per mRECIST (range: 1.1-12.3 months) with ATEZO/BEV. Patients receiving ATEZO/BEV had a greater DpR, per both criteria, across baseline liver lesion sizes. Characteristics of complete responders were similar to those of the intent-to-treat population. In complete responders receiving ATEZO/BEV per mRECIST versus RECIST 1.1, respectively, median TTCR was shorter (5.5 vs. 7.0 months), mean baseline sum of lesion diameter was longer (5.0 [SD, 5.1] vs. 2.6 [SD, 1.4] cm), and mean largest liver lesion size was larger (4.8 [SD, 4.2] vs. 2.3 [SD, 1.0] cm). CONCLUSIONS These data highlight the improved ORR, DpR, and CR rates with ATEZO/BEV in unresectable HCC.
Collapse
Affiliation(s)
- Riad Salem
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Evanston, IL, USA
| | - Daneng Li
- Department of Medical Oncology, City of Hope Comprehensive Cancer Center and Beckman Research Institute, Duarte, CA, USA
| | | | | | | | | | - Riccardo Lencioni
- Department of Radiology, University of Pisa School of Medicine, Pisa, Italy.,Miami Cancer Institute, Miami, FL, USA
| |
Collapse
|
5
|
Intra-arterial hepatic beads loaded with irinotecan (DEBIRI) with mFOLFOX6 in unresectable liver metastases from colorectal cancer: a Phase 2 study. Br J Cancer 2020; 123:518-524. [PMID: 32507854 PMCID: PMC7435188 DOI: 10.1038/s41416-020-0917-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/16/2020] [Accepted: 05/13/2020] [Indexed: 12/12/2022] Open
Abstract
Background Chemo-embolisation with drug-eluting beads loaded with irinotecan (DEBIRI) increased survival as compared with intravenous irinotecan in chemorefractory patients with liver-dominant metastases from colorectal cancer (LMCRC). First-line DEBIRI with systemic chemotherapy may increase survival and secondary resection. Methods In the FFCD-1201 single-arm Phase 2 study, patients with untreated, non-resectable LMCRC received DEBIRI plus mFOLFOX6. Four courses of DEBIRI were performed alternating right and left lobe or two sessions with both lobes treated during the same session. Results Fifty-seven patients were enrolled. Grade 3–5 toxicities were more frequent when both lobes were treated during the same session (90.5% versus 52.8%). Nine-month PFS rate was 53.6% (95% CI, 41.8–65.1%). The objective response rate (RECIST 1.1) was 73.2%, and the secondary R0 surgery was 33%. With a median follow-up of 38.3 months, median OS was 37.4 months (95% CI, 25.7–45.8), and median PFS 10.8 months (95% CI, 8.2–12.3). Conclusions Front-line DEBIRI + mFOLFOX6 should not be recommended as the hypothesised 9-month PFS was not met. However, high response rate, deep responses, and prolonged OS encourage further evaluation in strategies integrating biologic agent, in particular in patients with secondary surgery as the main goal. Clinical trial registration NCT01839877.
Collapse
|
6
|
Fabre A, Badet N, Calame P, Delabrousse E, Wespiser M, Turco C, Borg C, Jary M. [Radiologic response assessment in metastatic colorectal cancers]. Bull Cancer 2019; 106:1029-1038. [PMID: 31570214 DOI: 10.1016/j.bulcan.2019.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/25/2019] [Accepted: 08/13/2019] [Indexed: 11/16/2022]
Abstract
The increasing indications of cytostatic biotherapies and the improvement in metastatic surgery have profoundly changed the management of metastatic colorectal cancer (mCRC) patients. Then the development of prognostic and predictive scores would be useful to stratify the treatments. Tumor radiological measurement is crucial to estimate treatment efficacy, and to predict pathological response and survival, and this parameter is included when a prognostic score is developed. But the standard size-based radiologic criteria, the Response Evaluation Criteria in Solid Tumors (RECIST), was designed ten years ago to assess tumor volume reduction after cytotoxic chemotherapy only. Nowadays, this method may be insufficient for mCRC patients. The aim of this review is to describe the different radiological assessments evaluated in mCRC, and to underline their correlations with patient's survival and pathologic response. A better knowledge of these radiological measurements would help to better integrate them in prospective trials, and in the prognostic and predictive scores. The choice of radiological measurement could be discussed regarding patient's situation, combining different approaches, and assessing tumoral mass quantification.
Collapse
Affiliation(s)
- Achille Fabre
- Besançon University Hospital, Department of Radiology, 25000 Besançon, France
| | - Nicolas Badet
- Clinique Saint-Vincent, Department of Radiology, 25000 Besançon, France
| | - Paul Calame
- Besançon University Hospital, Department of Radiology, 25000 Besançon, France
| | - Eric Delabrousse
- Besançon University Hospital, Department of Radiology, 25000 Besançon, France
| | - Mylène Wespiser
- University Hospital, Department of Medical Oncology, 25000 Besançon, France
| | - Celia Turco
- Besançon University Hospital, Department of Digestive Surgery, 25000 Besançon, France
| | - Christophe Borg
- University Hospital, Department of Medical Oncology, 25000 Besançon, France; University of Franche-Comté, Unit 1098, Inserm, 25000 Besançon, France
| | - Marine Jary
- University Hospital, Department of Medical Oncology, 25000 Besançon, France; University of Franche-Comté, Unit 1098, Inserm, 25000 Besançon, France.
| |
Collapse
|
7
|
Carrato A, Benavides M, Massutí B, Ferreiro-Monteagudo R, García Alfonso P, Falcó E, Reboredo M, Cano T, Gallego J, Viéitez JM, Layos L, Salud A, Polo E, Dotor E, Durán-Ogalla G, Rodriguez-Garrote M, Calvo A, Grande E, Aranda E. First-line single-agent regorafenib in frail patients with metastatic colorectal cancer: a pilot phase II study of the Spanish Cooperative Group for the Treatment of Digestive Tumours (TTD). BMC Cancer 2019; 19:533. [PMID: 31159765 PMCID: PMC6547483 DOI: 10.1186/s12885-019-5753-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 05/27/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Treatment of frail patients with advanced colorectal cancer (CRC) is controversial. This pilot phase II trial aimed to assess the efficacy and safety of regorafenib when administered in first-line to frail patients with advanced CRC. METHODS Frail patients without prior advanced colorectal cancer treatment were included in the study. Definition of frailty was defined per protocol based on dependency criteria, presence of chronic comorbid pathologies and/or geriatric features. MAIN OBJECTIVE to assess progression-free survival (PFS) rate at 6 months. Treatment consisted of 28-day cycles of orally administered regorafenib 160 mg/day (3 weeks followed by 1 week rest). RESULTS Forty-seven patients were included in the study. Median age was 81 years (range 63-89). Frailty criteria: dependency was observed in 26 patients (55%), comorbidities in 27 (57%) and geriatric features in 18 (38%). PFS rate at 6 months was 45% (95% confidence interval [CI] 30-60]. Median PFS was 5.6 months (95%CI 2.7-8.4). Median overall survival (OS) was 16 months (95%CI 7.8-24). Complete response, partial response and stable disease were observed in one, two and 21 patients respectively (objective response rate 6.4%; disease control rate 51%). Thirty-nine patients (83%) experienced grade 3-4 adverse events (AEs). The most common grade 3-4 AEs were hypertension (15 patients; 32%), asthenia (14; 30%), hypophosphatemia (6; 13%); diarrhea (4; 8%), hand-foot-skin reaction (4; 8%). There were two toxic deaths (4.2%) (grade 5 rectal bleeding and death not further specified). Dose reduction was required in 26 patients (55%) and dose-delays in 13 patients (28%). CONCLUSIONS The study did not meet the pre-specified boundary of 55% PFS rate at 6 months. Toxicity observed (83% patients experienced grade 3 and 4 AEs) preclude its current use in clinical practice on this setting. Disease control rate and overall survival results are interesting and might warrant further investigation to identify those who benefit from this approach. TRIAL REGISTRATION This trial was prospectively registered at EudraCT ( 2013-000236-94 ). Date of trial registration: April 9th, 2013.
Collapse
Affiliation(s)
- A. Carrato
- Medical Oncology Department, Hospital Universitario Ramón y Cajal, IRYCIS, CIBERONC, Alcala University, Ctra. De Colmenar Viejo, km 9,100, 28034 Madrid, Spain
| | - M. Benavides
- Hospital Regional Universitario Virgen de la Victoria, Málaga, Spain
| | - B. Massutí
- Hospital General Universitario de Alicante, Alicante, Spain
| | - R. Ferreiro-Monteagudo
- Medical Oncology Department, Hospital Universitario Ramón y Cajal, IRYCIS, CIBERONC, Alcala University, Ctra. De Colmenar Viejo, km 9,100, 28034 Madrid, Spain
| | | | - E. Falcó
- Hospital Son Llatzer, Mallorca, Spain
| | - M. Reboredo
- Complejo Hospitalario Universitario A Coruña, La Coruña, Spain
| | - T. Cano
- Hospital Universitario Reina Sofia, IMIBIC, University of Córdoba, CIBERONC, Instituto de Salud Carlos III, Córdoba, Spain
| | - J. Gallego
- Hospital General Universitario de Elche, Alicante, Spain
| | - J. M. Viéitez
- Hospital Universitario Central de Asturias, Oviedo, Spain
| | - L. Layos
- Hospital Germans Trias i Pujol, ICO, Badalona, Spain
| | - A. Salud
- Hospital de Lleida Arnau de Vilanova, Lérida, Spain
| | - E. Polo
- Hospital Miguel Servet, Zaragoza, Spain
| | - E. Dotor
- Corporació Sanitària Parc Taulí, Barcelona, Spain
| | - G. Durán-Ogalla
- Hospital Regional Universitario Virgen de la Victoria, Málaga, Spain
| | - M. Rodriguez-Garrote
- Medical Oncology Department, Hospital Universitario Ramón y Cajal, IRYCIS, CIBERONC, Alcala University, Ctra. De Colmenar Viejo, km 9,100, 28034 Madrid, Spain
| | - A. Calvo
- Hospital Gregorio Marañón, Madrid, Spain
| | - E. Grande
- Medical Oncology Department, Hospital Universitario Ramón y Cajal, IRYCIS, CIBERONC, Alcala University, Ctra. De Colmenar Viejo, km 9,100, 28034 Madrid, Spain
| | - E. Aranda
- Hospital Universitario Reina Sofia, IMIBIC, University of Córdoba, CIBERONC, Instituto de Salud Carlos III, Córdoba, Spain
| |
Collapse
|
8
|
Krell RW, D'Angelica MI. Treatment sequencing for simultaneous colorectal liver metastases. J Surg Oncol 2019; 119:583-593. [DOI: 10.1002/jso.25424] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 02/08/2019] [Indexed: 12/20/2022]
|
9
|
Zhao L, Wang J, Li H, Che J, Cao B. Meta-analysis comparing maintenance strategies with continuous therapy and complete chemotherapy-free interval strategies in the treatment of metastatic colorectal cancer. Oncotarget 2017; 7:33418-28. [PMID: 27072579 PMCID: PMC5078106 DOI: 10.18632/oncotarget.8644] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 03/26/2016] [Indexed: 01/15/2023] Open
Abstract
There is as yet no consensus as to the best choice among the three treatment options (maintenance, complete chemotherapy-free intervals [CFIs], and continuous) for metastatic colorectal cancer (CRC). We performed a meta-analysis of six trials (N = 2, 454 patients) to compare the safety and efficacy of those three treatment strategies. Maintenance appeared to offer an advantage over CFI with respect to progression-free survival (PFS) (hazard ratio [HR]: 0.53, 95% confidence interval [CI], 0.40–0.69). PFS and overall survival (OS) were comparable between the maintenance and continuous strategies (HR: 1.18, 95% CI, 0.96–1.46; HR: 1.05, 95% CI, 0.98–1.27, respectively), as was OS between the maintenance and CFI strategies (HR: 0.84; 95% CI, 0.70–1.00). The incidence of grade 3/4 toxicity, including neutropenia, neuropathy, hand-foot syndrome and fatigue, was lower with maintenance than with continuous therapy. A maintenance regimen utilizing bevacizumab-based doublets appeared to confer a slight advantage over bevacizumab monotherapy with respect to PFS (P = 0.011). Maintenance appeared to reduce cumulative grade 3/4 toxicity as compared to the continuous strategy, while showing comparable efficacy. Bevacizumab-based doublets appeared to be of particular value in patients with metastatic CRC.
Collapse
Affiliation(s)
- Lei Zhao
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jing Wang
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Huihui Li
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Juanjuan Che
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Bangwei Cao
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
10
|
Sakamaki K, Kito Y, Yamazaki K, Izawa N, Tsuda T, Morita S, Boku N. Exploration of time points and cut-off values for early tumour shrinkage to predict survival outcomes of patients with metastatic colorectal cancer treated with first-line chemotherapy using a biexponential model for change in tumour size. ESMO Open 2017; 2:e000275. [PMID: 29177097 PMCID: PMC5687555 DOI: 10.1136/esmoopen-2017-000275] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 12/22/2022] Open
Abstract
Background Several studies reported that early tumour shrinkage (ETS) was associated with overall survival in patients with metastatic colorectal cancer (mCRC) treated with first-line chemotherapy. However, appropriate time point and cut-off value for ETS remain unclear because these varied in previous studies. Patients and methods We investigated patients with mCRC who received FOLFOX or FOLFIRI with/without molecular-targeted agents as first-line treatment between 2005 and 2014. Using a biexponential model for change in tumour size, a relative change in the sum of the longest diameters of target lesions from baseline was estimated at a certain time point in each individual patient. Associations of survival outcomes with ETS at various time points based on various cut-off values were evaluated by Cox regression analysis with a landmark approach. Results Among the 67 patients reviewed, the objective response rate was 73.1% (95% CI 62.5% to 83.7%), the median progression-free survival was 10.9 months (95% CI 8.7 to 13.0 months) and the median overall survival was 25.6 months (95% CI 20.1 to 27.3 months). The model for change in tumour size agreed with the actual measured sizes well. Multivariate Cox regression analysis, including performance status, number of metastatic sites and use of targeted agents, showed that ETS at 8 weeks based on a cut-off value of 20% was most significantly associated with overall survival (HR: 0.404, 95% CI 0.231 to 0.707, P=0.0015). Conclusion It is suggested that a time point of 8 weeks and a cut-off value of 20% may be optimal criteria for defining ETS.
Collapse
Affiliation(s)
- Kentaro Sakamaki
- Department of Biostatistics and Bioinformatics, The University of Tokyo, Tokyo, Japan
| | - Yosuke Kito
- Division of Gastrointestinal Oncology, Shizuoka Kenritsu Shizuoka Gan Center, Sunto-gun, Shizuoka, Japan
| | - Kentaro Yamazaki
- Division of Gastrointestinal Oncology, Shizuoka Kenritsu Shizuoka Gan Center, Sunto-gun, Shizuoka, Japan
| | - Naoki Izawa
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Takashi Tsuda
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Satoshi Morita
- Department of Biomedical Statistics and Bioinformatics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Narikazu Boku
- Division of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| |
Collapse
|
11
|
Spindler KLG. Methodological, biological and clinical aspects of circulating free DNA in metastatic colorectal cancer. Acta Oncol 2017; 56:7-16. [PMID: 28010185 DOI: 10.1080/0284186x.2016.1253861] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Circulating DNA can be used to measure the total cell-free DNA (cfDNA) and for detection and quantification of tumor-specific genetic alterations in the peripheral blood, and the broad clinical potential of circulating DNA has attracted increasing focus over the past decade. Concentrations of circulating DNA are high in metastatic colorectal cancer (CRC), and the total levels of cfDNA have been reported to hold strong prognostic value. Colorectal tumors are characterized by a high frequency of well known, clinically relevant genetic alteration, which is readily detected in the cfDNA and holds potential for tailoring of palliative therapy and for monitoring during treatment. This review aims to present the current literature which has specifically reported data on the potential utility of cfDNA and on tumor-specific mutations in metastatic colorectal cancer (mCRC). METHOD Methodological, biological and clinical aspects are discussed based on the most recent development in this specific setting, and eligible studies were identified by systematic literature searched from Pubmed and EMBASE in addition to conference papers and communications. RESULTS The literature regarding cfDNA in CRC is broad and heterogeneous concerning aims, nomenclature, methods, cohorts and clinical endpoints and consequently difficult to include in a single systematic search. However, the available data underline a strong clinical value of measuring both total cfDNA levels and tumor-specific mutations in the plasma of patients with mCRC, pre- and during systemic therapy. CONCLUSION This paper had gathered the most recent literature on several aspects of cfDNA in mCRC, including methodological, biological and clinical aspects, and discussed the large clinical potential in this specific setting, which needs to be validated in carefully designed prospective studies in statistically relevant cohorts.
Collapse
Affiliation(s)
- Karen-Lise G Spindler
- a Department of Oncology , Aarhus University Hospital, Institute of Clinical Medicine, Aarhus University , Aarhus , Denmark
| |
Collapse
|