Phosphodiesterase inhibitor treatment
View Patent ↗Methods and compositions are disclosed for the treatment of diseases or conditions produced by or associated with low cyclic nucleotide levels. The compositions comprise phosphodiesterase inhibitors and are formulated for intranasal and pulmonary administration.
1. A method for treating hyposmia in a human comprising intranasally administering to the human a non-theophylline containing pharmaceutical composition comprising a therapeutically effective amount of a phosphodiesterase (PDE) inhibitor, wherein the PDE inhibitor is PDE-4 selective inhibitor that comprises roflumilast, and a pharmaceutically acceptable carrier, wherein the therapeutically effective amount comprises less than 1 mg of the PDE inhibitor.
2. The method of claim 1 , wherein the non-theophylline containing pharmaceutical composition is steroid-free.
3. The method of claim 1 , wherein the non-theophylline containing pharmaceutical composition is formulated as a liquid.
4. The method of claim 1 , wherein the administering is repeated daily over a treatment time course.
5. The method of claim 4 , wherein the treatment time course comprises at least one month.
6. The method of claim 1 , wherein the therapeutically effective amount comprises less than 500 μg of the PDE inhibitor.
7. The method of claim 1 , wherein the therapeutically effective amount comprises less than 250 μg of the PDE inhibitor.
8. The method of claim 1 , wherein the therapeutically effective amount comprises less than 100 μg of the PDE inhibitor.
9. The method of claim 1 , wherein the therapeutically effective amount comprises 40 μg of the PDE inhibitor.
10. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, a blood concentration of the PDE inhibitor is less than 1 mg/dl.
11. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, a blood concentration of the PDE inhibitor is less than 500 mg/dl.
12. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, a blood concentration of the PDE inhibitor is less than 250 mg/dl.
13. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, a blood concentration of the PDE inhibitor is less than 100 μg/dl.
14. The method of claim 1 , wherein the human is a human in need thereof.
15. The method of claim 14 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, salivary or nasal mucus cAMP or cGMP levels increase by at least 10%.
16. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 5% as measured by detection threshold (DT).
17. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 10% as measured by detection threshold (DT).
18. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 5% as measured by recognition threshold (RT).
19. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 10% as measured by recognition threshold (RT).
20. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 5% as measured by magnitude estimation (ME).
21. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 10% as measured by magnitude estimation (ME).
22. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 5% as measured by hedonics (H).
23. The method of claim 1 , wherein after treatment with the therapeutically effective amount of the PDE inhibitor, smell acuity increases by at least 10% as measured by hedonics (H).
24. The method of claim 1 , wherein hyposmia is treated.
25. The method of claim 1 , wherein the non-theophylline containing pharmaceutical composition is formulated as a dry powder.