Related Experiment Video
Updated: Jul 11, 2026

Development and Maintenance of a Preclinical Patient Derived Tumor Xenograft Model for the Investigation of Novel Anti-Cancer Therapies
Published on: September 30, 2016
[Selective cyclooxygenase-2 inhibitors for the prevention of colorectal adenomas: a meta-analysis]
Xi-feng Jin1, Jin-lu Tong, Zhi-hua Ran
1Department of Gastroenterology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Institute of Digestive Disease, Shanghai 200001, China.
Objective:
To determine the validity and safety of selective cyclooxygenase (COX)-2 inhibitors for the prevention of colorectal adenomas.
Methods:
The relevant data were retrieved from Medline (1966 to 2006), OVID (1996 to January 2007), EMBASE (1980 to January 2007), Chinese Cochrane Centre databases (up to January 2007) and Chinese Biological Medicine Disk (CBM disk, 1997 to 2007). Methodological quality assessment was based on the Cochrane Reviewers' Handbook and Jadad's Score Scale. Statistical software RevMan4.2 was used for meta-analysis.
Results:
Six randomized clinical trials (5708 patients) were included in the study. Compared with placebo, selective COX-2 inhibitors lowered the detection rates of both adenomas and advanced adenomas (RR: 0.70, 95% CI: 0.55 - 0.88, P = 0.0003 and RR: 0.69, 95% CI: 0.53 - 0.89, P = 0.005). No significant difference was observed in the number of adverse events between patients taking selective COX-2 inhibitors and those taking placebo (RR: 1.07, 95% CI: 0.98 - 1.17, P = 0.11). Compared with placebo, selective COX-2 inhibitors increased the risk of cardiovascular events (RR: 1.21, 95% CI: 1.09 - 1.33, P = 0.0002).
Conclusion:
Selective COX-2 inhibitors can induce sufficient regression of colorectal adenomatous polyps and thus be used for chemoprevention of colorectal neoplasms. However, because of the potential cardiovascular events, it is not routinely recommended for this indication.
More Related Videos
09:01Non-invasive Assessment of the Efficacy of New Therapeutics for Intestinal Pathologies Using Serial Endoscopic Imaging of Live Mice
Published on: March 10, 2015
06:24Establishment of Coloproctitis Cancer Model in Mice and Evaluation of Therapeutic Effect of Chinese Medicine
Published on: October 13, 2023
Related Concept Videos
Drugs for Treatment of Ulcerative Colitis in IBD
Drugs for Peptic Ulcer Disease: Prostaglandin Analogs as Mucosal Protective Agents
Non-steroidal anti-inflammatory drugs (NSAIDs) can induce peptic ulcers by inhibiting cyclooxygenase, decreasing...
Cancer Prevention
Some...
Inhibition of Cdk Activity
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase