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  • Title: Clinical trial: the effects of adding ranitidine at night to twice daily omeprazole therapy on nocturnal acid breakthrough and acid reflux in patients with systemic sclerosis--a randomized controlled, cross-over trial.
    Author: Janiak P, Thumshirn M, Menne D, Fox M, Halim S, Fried M, Brühlmann P, Distler O, Schwizer W.
    Journal: Aliment Pharmacol Ther; 2007 Nov 01; 26(9):1259-65. PubMed ID: 17944740.
    Abstract:
    BACKGROUND: Gastro-oesophageal reflux disease (GERD) is an important problem in systemic sclerosis due to impaired salivation and oesophageal function. AIM: To determine the efficacy of adding ranitidine at bedtime to control nocturnal acid breakthrough (NAB) and GERD in patients with systemic sclerosis already prescribed high-dose omeprazole. METHODS: Patients with systemic sclerosis and GERD symptoms (n = 14) were treated with omeprazole 20 mg b.d. and either placebo or ranitidine 300 mg at bedtime for 6 weeks in a randomized, cross-over, placebo controlled study. At the end of each period a 24 h pH-study with intragastric and oesophageal pH measurement was performed. RESULTS: Pathological acid reflux occurred in eight patients with omeprazole/placebo and in seven with omeprazole/ranitidine (P = ns) with technically adequate oesophageal pH-studies (n = 13). NAB was present in eight patients with omeprazole/placebo and six with omeprazole/ranitidine (P = ns) in whom technically adequate gastric pH-studies were obtained (n = 10). The addition of ranitidine had no consistent effect on patient symptoms or quality of life. CONCLUSION: Many patients with systemic sclerosis experienced NAB and pathological oesophageal acid exposure despite high-dose acid suppression with omeprazole b.d. Adding ranitidine at bedtime did not improve NAB, GERD or quality of life in this population.
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