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Pilot studies demonstrate the potential benefits of antiinflammatory therapy in human lymphedema.


ABSTRACT: BACKGROUND:Lymphedema is a common condition affecting millions around the world that still lacks approved medical therapy. Because ketoprofen, an NSAID, has been therapeutic in experimental lymphedema, we evaluated its efficacy in humans. METHODS:We first performed an exploratory open-label trial. Patients with either primary or secondary lymphedema received ketoprofen 75 mg by mouth 3 times daily for 4 months. Subjects were evaluated for changes in histopathology, with skin thickness, limb volume, and tissue bioimpedance changes serving as secondary endpoints. Based on our encouraging findings, we next conducted a placebo-controlled trial, with the primary outcome defined as a change in skin thickness, as measured by skin calipers. Secondary endpoints for this second study included histopathology, limb volume, bioimpedance, and systemic inflammatory mediators. RESULTS:We enrolled 21 lymphedema patients in the open-label trial, from November 2010 to July 2011. Histopathology and skin thickness were significantly improved at 4 months compared with baseline. In the follow-up, double-blind, placebo-controlled trial, we enrolled 34 patients from August 2011 to October 2015, with 16 ketoprofen recipients and 18 placebo-treated subjects. No serious adverse events occurred. The ketoprofen recipients demonstrated reduced skin thickness, as well as improved composite measures of histopathology and decreased plasma granulocyte CSF (G-CSF) expression. CONCLUSION:These 2 exploratory studies together support the utility of targeted antiinflammatory therapy with ketoprofen in patients with lymphedema. Our results highlight the promise of such approaches to help restore a failing lymphatic circulation. TRIAL REGISTRATION:ClinicalTrials.gov NCT02257970.

SUBMITTER: Rockson SG 

PROVIDER: S-EPMC6237444 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Pilot studies demonstrate the potential benefits of antiinflammatory therapy in human lymphedema.

Rockson Stanley G SG   Tian Wen W   Jiang Xinguo X   Kuznetsova Tatiana T   Haddad Francois F   Zampell Jamie J   Mehrara Babak B   Sampson Joshua P JP   Roche Leslie L   Kim Jinah J   Nicolls Mark R MR  

JCI insight 20181018 20


<h4>Background</h4>Lymphedema is a common condition affecting millions around the world that still lacks approved medical therapy. Because ketoprofen, an NSAID, has been therapeutic in experimental lymphedema, we evaluated its efficacy in humans.<h4>Methods</h4>We first performed an exploratory open-label trial. Patients with either primary or secondary lymphedema received ketoprofen 75 mg by mouth 3 times daily for 4 months. Subjects were evaluated for changes in histopathology, with skin thick  ...[more]

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