Enjoy life nice to see you back!
The study http://jama.jamanetwork.com/article.aspx?articleid=1887760
measured otcomes at 12, 24 and 48 weeks which should be plenty of time for Plaquenil to have an effect.
The auhor says
Dr. Gottenberg said in an interview with Medscape Medical News.
"We lacked a randomized controlled trial of [hydoxychloroquine]. We all use this drug very often, and sometimes it works for some of our patients. We wanted to design a study to demonstrate it was working. The result was negative, but we can imagine in some subsets of patients this drug can still work," continued Dr. Gottenberg.
Patients with synovitis or purpura associated with high serum levels of immunoglobulin G may be most likely to benefit from treatment with hydroxychloroquine, he said. The investigators were unable to determine a skin benefit for hydroxychloroquine, however, because only 3 study patients had purpura, and all 3 were in the placebo group, Dr. Gottenberg noted.
"This is an important paper," commented Neil I. Stahl, MD, a member of the Medical & Scientific Advisory Board of the Sjögren's Syndrome Foundation, who treats patients with Sjögren's syndrome at Arthritis & Rheumatic Disease Associates, PC, in Burke, Virginia.
There are earlier studies that show very mixed results. Some saying no effect and some a slight effect.
I think as the author says it depends on the symptoms. It seems to me that for some people with high complement levels and jpint/muscle problems it may help. BUT it is not the panacea that the rheumatologists suggest when they and it out like sweets as the first (and often only) treatment for SS. Truth is there is no treatment but 2or 3 drugs may help sympyomatically for some people.
Stats is stats no matter what - and the profession that is worst at stats is ....?
Medics, totally clueless, my time at Sheffield med school really brought this home. I was lucky my prof was an ex mathematician who converted to bilogical/medical physics and he tore many published and accepted papers apart becuase that stats were incorrect incorrect test for the study incorrect analysis etc. Even worse quite a few papers have correct stats but the conclusions stated are not consistent with the actual results!!!!!!!!!!!!!!
The worst was that the whole UK NHS blood test profiling at that time was wrong because the test, sample size were biased and after new trials the data used by medics to analyse blood tests had to be changed!