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Clinical Trial Summary

The Prophylactic Antibiotic Regimens in Tumor Surgery (PARITY) trial is the first ever international multi-center randomized controlled trial in bone cancer surgery. In order to avoid amputation for bone cancer in the leg, complex limb-saving operations are performed. However, infections with devastating complications following surgery are common. Surgeons from across the world will randomize patients to receive either short- or long-duration antibiotic regimens after surgery with the goal of identifying the best regimen to reduce these infections.


Clinical Trial Description

Long-bone sarcomas were historically managed with amputation. In the current era of osteosarcoma management, amputations are generally avoided by complex surgeries in which the malignancy is removed and the limb is reconstructed with advanced surgical techniques. This process of limb salvage is possible with improvements in chemotherapeutic regimens, advanced imaging techniques and surgical innovations such as modular metallic implants. However, the risk for surgical complications is high due to the complexity of the surgeries themselves. The most common and devastating complication is a surgical site infection. Background work and data from our pilot study indicates that infection rates approach 15%. Multiple surgical attempts at eradication of the infection fail in 50% of these cases, resulting in amputation. Published guidelines for post-operative antibiotic prophylaxis following many standard and less complex elective surgical procedures dictate that prophylactic antibiotics be discontinued after 24 hours. However, the most effective duration of treatment in sarcoma surgery has not previously been examined. Given the limitations of the evidence, it has not been possible for orthopaedic oncologists to draw firm conclusions and, therefore, clinical practice is highly varied, particularly with respect to antibiotic duration. Our international, multi-center randomized controlled trial will determine whether a 5-day regimen of post-operative prophylactic antibiotics in comparison to a standard 24-hour regimen decreases the rate of surgical site infections after limb salvage surgery within 1-year follow-up. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT01479283
Study type Interventional
Source McMaster University
Contact
Status Completed
Phase Phase 3
Start date January 2013
Completion date March 2021

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