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Accomplishments in 2008 in the adjuvant treatment of rectal cancer.

ABSTRACT: Overview of the Disease IncidencePrognostic FactorsCurrent General Therapy Standards Surgery(Neo) Adjuvant Radiotherapy and ChemotherapyAccomplishments During the Year Time Duration Between Radiotherapy and SurgeryHistopathology Post-Neoadjuvant TherapyMetabolic Imaging During Neoadjuvant TherapyNew Drugs in Combination with RadiotherapyNew StrategiesFuture Strategies ControversiesComments on ResearchObstacles to Progress.

SUBMITTER: Czito B

PROVIDER: S-EPMC2791392 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature

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Accomplishments in 2008 in the adjuvant treatment of rectal cancer.

Czito Brian B Lordick Florian F

Gastrointestinal cancer research : GCR 20090901 5 Supplement 2

Overview of the Disease IncidencePrognostic FactorsCurrent General Therapy Standards Surgery(Neo) Adjuvant Radiotherapy and ChemotherapyAccomplishments During the Year Time Duration Between Radiotherapy and SurgeryHistopathology Post-Neoadjuvant TherapyMetabolic Imaging During Neoadjuvant TherapyNew Drugs in Combination with RadiotherapyNew StrategiesFuture Strategies ControversiesComments on ResearchObstacles to Progress. ...[more]

PMID: 20011572

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Project description:BackgroundNeoadjuvant (chemo) radiotherapy is used as a standard treatment for locally advanced rectal cancer (LARC), but there is no general consensus on either the efficacy of postoperative adjuvant chemotherapy in patients with LARC after neoadjuvant treatment and surgery, or whether the addition of oxaliplatin to adjuvant chemotherapy provides survival benefits.MethodsWe performed a meta-analysis of data from the PubMed and Embase databases. We included patients with LARC who received neoadjuvant (chemo) radiotherapy and curative surgery. Overall survival (OS), disease-free survival (DFS), toxicity, and compliance were analyzed in the oxaliplatin/fluorouracil- (OX/FU-) based group compared with the FU-based group, and in the chemotherapy group compared with the observation group.ResultsTwenty studies were included in the analysis. Our results indicated that adjuvant chemotherapy prolonged OS (hazard ratio [HR] = 0.78, 95%CI = 0.67-0.91) in patients with LARC treated with neoadjuvant (chemo) radiotherapy and surgery compared with those in the observation group. Subgroup analysis showed the same results in both the ypStage II and ypStage III groups. Compared with those in the observation group, patients in the chemotherapy group also showed an increase in DFS (HR = 0.75, 95%CI = 0.60-0.93). No significant increase was observed in OS (HR = 1.04, 95%CI = 0.87-1.24) or DFS (HR = 0.98, 95%CI = 0.76-1.27) when oxaliplatin was added to FU-based adjuvant chemotherapy, as compared with the FU-based treatment, and subgroup analysis also indicated no survival benefits in the clinical stage II, clinical stage III, ypStage II, and ypStage III groups.ConclusionsFor patients with LARC who have already received neoadjuvant (chemo) radiotherapy and curative surgery, adjuvant chemotherapy improves OS over that in the observation group. Adding oxaliplatin to FU-based adjuvant chemotherapy does not confer survival benefits beyond those from FU-based adjuvant chemotherapy.

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Accomplishments in 2008 in the adjuvant treatment of rectal cancer.

Publications

Accomplishments in 2008 in the adjuvant treatment of rectal cancer.

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