I have seen progress in medicine and many of the diseases which had no specific treatment in past ,now has some and we are making progress. But sometimes when a new drug comes to market , there are people who 'demand' it be used and there are some physicians who use it. I feel that sometimes there is some overuse. Recently a drug came in market for COPD -chronic obstructive lung disease, which is relatively old drug and approved for asthma and some other conditions in past for last few years , and now approved for COPD. The drug representatives were in my office the other day and were asking me how come I am not using it yet . My answer was I need to find appropriate patient for the use . But your collogues are using a lot ,was the comment. My answer was may be they have more appropriate patient . But that brings me to the patient for today.
I had seen this male patient - may be years old 3-4 years ago . He had chronic cough and so we did the work up . It looked like that he may have some allergies and some mild asthma. I did some investigations and did treat his asthma , which was seen on his breathing test , but he had some reduction in his diffusion capacity. The oxygen and carbon dioxide 'diffuse' across the lungs or air sacks and when we m= checked that as part of breathing test , we found out that that was reduced . So I did CT scan and he had some ILD - Interstitial Lung Disease. - something that can cause fibrosis - scarring in lungs and also can cause cough and shortness of breath. ]This also can be seen with allergies and also can be related to certain medications and then some have no known cause and so we call it Idiopathic . This last one has poor prognosis .
I did the work up and he had no known allergies and no work history and the bronchoscopy did not show any infection. So we talked on the diagnosis and some treatment . The drugs that were approved in may be are costly , do not reverse or cure the disease , but just reduce the rate of decline . In my personal opinion, which I had expressed in an interview when the drug came out in USA is that we do not have clear cut knowledge as which patient will get worse and which will not. So, it is very difficult to decide - o tests that can tell us on the 'chance' of worsening .So I do repeat tests in 4-6 months and anybody who worsens we start the drug . If they are very sick and have need for the oxygen ,then I start then quickly.
This patient had family history of such lung problem and so he was to go to John Hopkins for some research. We watched him . He did not get worse , but he was stable for a year or more and then I continued to do follow up. He had also gone to Hopkins and they did some blood tests on genetics work up. He continued ton do follow up and the cough had subsided and then the diffusion got better and after 3 years or more his last CT scan shows minimal scarring - the CT scan is significantly improved.
He does not need medications and if I had started him on medications , he would have been counted as 'success story'. The drug company has data that shows that when medications were started 'early ' they did better , but how many of them could have not had progression of the disease even if they were not on drug? This is impossible to be determined as we cannot and will not hold the drug if we have the worsening disease.
My be in future we will have some tests - markers that will tell us as who is going to get worse and we can start drug quickly, and not overuse it.