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Clinical Trial Summary

The purpose of this study is to evaluate if applying a lidocaine topical solution before wounds treatment decreases the pain of the procedure in comparison with placebo solution.


Clinical Trial Description

The manipulation of the wounds for its treatment is a painful process and there is currently no marketed any topical drug to decrease this suffering.

The objective of this study is to demonstrate that lidocaine topical solution applied prior to wounds treatment, reduces the pain of the procedure compared to the treatment done after application of placebo solution. In addition, if the process was less painful, the consumption of systemic analgesics would be reduced (or eliminated) and, therefore, also its secondary effects.

It is a pilot, single-center clinical trial, prospective, randomised, double-blind, placebo-controlled study that will include 26 patients admitted in Bellvitge University Hospital (HUB) who present painful wound treatments.

The Pharmaceutical Department of HUB prepares a dilution of lidocaine 0.5% in 20ml disposable syringes and also identical disposable syringes containing 20ml saline solution (process authorized by the Spanish Agency of Medicines and Sanitary Products).

Each patient included will be subject to 6 procedures, randomised according to the sequence of treatment ABABAB or BABABA ("A" is lidocaine solution, "B" is placebo solution), according to a random list.

After a doctor of The Pain Department evaluates and includes the patient into the study, prescribes the treatment and the Pharmaceutical Department provides 3 identical syringes (numbered), for each procedure, to the nurse of the patient. The first syringe will contain always saline solution (this is unknown for the patient and the nurse) doing this, the investigators obtain the basal pain of each procedure. The other two syringes contain the studying solution (lidocaine or saline solution, according the sequence of the random list) but always the same solution in both.

The doctors of the Pain Department ask the patient about the pain before starting the procedure and determine according the "Verbal numerical scale" (VNS) from 0 to 10 points. The nurse, under sterile conditions, will dampen two sterile gauzes with the solution contained in the syringe 1, and will apply on the wound during 10 minutes before starting the treatment. After this time, the nurse starts the treatment of the wound and the doctor asks again about the pain punctuation on the VNS and register it. All this procedure is repeated with the contain of the syringe 2 and register the punctuation. If the procedure is still painful, the nurse applies (following the same procedure) gauzes with the solution contained in the syringe 3 and the doctor register the VNS punctuation. If even this third application, the treatment is still painful, each patient has prescribed a systemic analgesic to be used at this point if necessary (it does not matter which analgesic, the best for each patient, the only condition is that it can not be modified during the period of inclusion into the study, it is, 6 procedures) and the punctuation in the VNS is also registered. Furthermore, during each procedure, the nurse and the doctor, control the appearance of side effects and 7 days after the last procedure, the doctor contacts to the patient for check the clinical safety.

Comparing the procedures carried out after lidocaine solution with saline solution, the investigators will evaluate the reduction of pain in the wounds treatment. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02584335
Study type Interventional
Source Hospital Universitari de Bellvitge
Contact
Status Terminated
Phase Phase 4
Start date July 2015
Completion date June 2016

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