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Polymorphism at codon 16 of the beta2-adrenoceptor (beta2-AR) affects the responsiveness to salmeterol in asthmatics. Data concerning formoterol are more controversial in literature. The aim of this study was to verify whether homozygote for arginine-16 (ArgArg16) and homozygote for glycine-16 (GlyGly16) genotypes differently influence the long-term responsiveness to formoterol.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Formoterol | 12 mcg BID for four weeks |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Formoterol | Drug |
|
| Measure | Description | Time Frame |
|---|---|---|
| Peak Expiratory Flow (PEF) variability | PEF has been monitorized during the 4-week treatment period |
| Measure | Description | Time Frame |
|---|---|---|
| Forced Expiratory Volume in 1 sec (FEV1) slope of the dose-response curve to salbutamol | At the end of the 4-week treatment period |
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Inclusion Criteria:
Exclusion Criteria:
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Pneumological outpatient clinic
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Catholic University, Pneumology Unit | Rome | 00168 | Italy |
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| ID | Term |
|---|---|
| D001249 | Asthma |
| ID | Term |
|---|---|
| D001982 | Bronchial Diseases |
| D012140 | Respiratory Tract Diseases |
| D008173 | Lung Diseases, Obstructive |
| D008171 | Lung Diseases |
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| ID | Term |
|---|---|
| D000068759 | Formoterol Fumarate |
| ID | Term |
|---|---|
| D004983 | Ethanolamines |
| D000605 | Amino Alcohols |
| D000438 | Alcohols |
| D009930 | Organic Chemicals |
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white cells
| D012130 |
| Respiratory Hypersensitivity |
| D006969 | Hypersensitivity, Immediate |
| D006967 | Hypersensitivity |
| D007154 | Immune System Diseases |
| D000588 |
| Amines |