Varicose Veins — A Singapore Venaseal Real World Post-Market Evaluation Study
Citation(s)
Brothers MF, Kaufmann JC, Fox AJ, Deveikis JP n-Butyl 2-cyanoacrylate--substitute for IBCA in interventional neuroradiology: histopathologic and polymerization time studies. AJNR Am J Neuroradiol. 1989 Jul-Aug;10(4):777-86.
Nesbitt C, Bedenis R, Bhattacharya V, Stansby G Endovenous ablation (radiofrequency and laser) and foam sclerotherapy versus open surgery for great saphenous vein varices. Cochrane Database Syst Rev. 2014 Jul 30;(7):CD005624. doi: 10.1002/14651858.CD005624.pub3. Review.
Rabe E, Otto J, Schliephake D, Pannier F Efficacy and safety of great saphenous vein sclerotherapy using standardised polidocanol foam (ESAF): a randomised controlled multicentre clinical trial. Eur J Vasc Endovasc Surg. 2008 Feb;35(2):238-45. Epub 2007 Nov 7.
Rasmussen LH, Lawaetz M, Bjoern L, Vennits B, Blemings A, Eklof B Randomized clinical trial comparing endovenous laser ablation, radiofrequency ablation, foam sclerotherapy and surgical stripping for great saphenous varicose veins. Br J Surg. 2011 Aug;98(8):1079-87. doi: 10.1002/bjs.7555.
Siribumrungwong B, Noorit P, Wilasrusmee C, Attia J, Thakkinstian A A systematic review and meta-analysis of randomised controlled trials comparing endovenous ablation and surgical intervention in patients with varicose vein. Eur J Vasc Endovasc Surg. 2012 Aug;44(2):214-23. doi: 10.1016/j.ejvs.2012.05.017. Epub 2012 Jun 15. Review.
Tang TY, Kam JW, Gaunt ME ClariVein® - Early results from a large single-centre series of mechanochemical endovenous ablation for varicose veins. Phlebology. 2017 Feb;32(1):6-12. doi: 10.1177/0268355516630154. Epub 2016 Jul 9.
Vanlangenhove P, De Keukeleire K, Everaert K, Van Maele G, Defreyne L Efficacy and safety of two different n-butyl-2-cyanoacrylates for the embolization of varicoceles: a prospective, randomized, blinded study. Cardiovasc Intervent Radiol. 2012 Jun;35(3):598-606. doi: 10.1007/s00270-011-0188-9. Epub 2011 Jun 3.
Multi-Centre Registry to Investigate the Efficacy and Safety of Venaseal Endovenous Ablation for Varicose Veins in Singapore
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
