Thank you Rosalind. I have no knowledge about the topic. A friend asked me that question for a family member who is seeking help. You work in Aphasia. What is your opinion about etanercept and about the link you sent?
Thank you for your kind answer. One final question, do you know of any experimental drug that is being currently assessed for its potential to slow down the progress of aphasia?
Are you talking about Primary Progressive Aphasia? I work with post-stroke and post-TBI aphasia, so I'm not that familiar with PPA. There is a center at Northwestern that might be able to give you more help. http://www.brain.northwestern.edu/dementia/ppa/index.html
Also, have you tried searching on clinicaltrials.gov?
A lot of research is being done using transcranial direct current and magnetic stimulation (tDCS and rTMS, respectively) as an adjuvant to speech therapy, so you might want to look for those too.