Esophagus is commonly affected in Systemic Sclerosis (SSc) and esophageal function is compromised in about 75% of patients. Previous studies have shown that buspirone, an orally available 5-HT1A (serotonin 1a receptor agonist), enhances esophageal motility in healthy volunteers. Recently, the investigators observed that a single dose of buspirone (10mg) improves lower esophageal sphincter (LES) function in patients with SSc and esophageal involvement . Objectives: To evaluate the effect of continuous administration of buspirone on esophageal dysfunction and related symptoms in SSc using high resolution manometry (HRM).
Age range
18 Years – 75 Years
Sex
ALL
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Changes From Baseline in Manometric Parameters: i) Amplitude of Contractions at the Distal Part of the Esophagus and ii) Resting and Residual (Lower Esophageal Pressure) LES Pressure and IRP (Integrated Relaxation Pressure) at Week 4
Timeframe: before and after 4 weeks buspirone administration
Changes From Baseline in Manometric Parameters: Duration of Contractions at the Distal Part of the Esophagus at Week 4
Timeframe: before and after 4 weeks buspirone administration
Changes From Baseline in Manometric Parameters: Velocity of Contractions at the Distal Part of the Esophagus at Week 4
Timeframe: before and after 4 weeks buspirone administration