Now I read recently in a paper that there are attempts to develop a genetic
treatment for this desease which is aimed at supplying the cells in the lungs
with the missing gene which is required for their proper operation.

Could someone point out the current status of this development?

Thanks
Manfred Kremer

 I believe clinical trials are now taking place.
 In 1990, a Dr. James Wilson of the University of Micigan and his colleagues
 were one of two research groups to correct the gene causing CF.
 During the clinical trials, corrected CF genes will de delivered to patients
 via genetically engineered adenoviruses which will serve as carriers or
 vectors.
 For these patients participating in the trials, the corrected gene will be
 lavaged into the lung. Baseline tissue samples will be gathered via a
 bronchoscopy prior to the procedure.