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I. Compare the efficacy of enteric coated pancrelipase with bicarbonate (PANCRECARB) capsules versus the patient's usual enteric coated pancreatic enzyme without bicarbonate in decreasing fecal fat and nitrogen losses in patients with cystic fibrosis.
PROTOCOL OUTLINE: This is a randomized, multicenter study. In the first treatment period, patients are randomized to one of two treatment arms.
Arm I: Patients receive enteric coated pancrelipase with bicarbonate (PANCRECARB) capsules before meals and snacks for 7 consecutive days.
Arm II: Patients receive their usual enteric coated pancreatic enzyme without bicarbonate capsule before meals and snacks for 7 consecutive days.
Patients receive approximately 50% of their usual lipase dose during treatment. Food intake is recorded on days 1-3, food intake is weighed and recorded on days 4-7, and stools are collected over 72 hours on days 5-7 to determine fecal fat and nitrogen excretion. Anthropometric measurements including height, weight, and skinfolds are assessed.
In the second treatment period, patients are switched to the alternate treatment arm after a 3 day washout period. Patients receive the opposing treatment as per protocol.
Primary Purpose: Treatment
pancrelipase with bicarbonate
Office of Rare Diseases (ORD)
Published on BioPortfolio: 2014-07-23T21:56:25-0400
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A chloride channel that regulates secretion in many exocrine tissues. Abnormalities in the CFTR gene have been shown to cause cystic fibrosis. (Hum Genet 1994;93(4):364-8)
A strain of mice widely studied as a model for cystic fibrosis. These mice are generated from embryonic stem cells in which the CFTR (cystic fibrosis transmembrane conductance regulator) gene is inactivated by gene targeting. As a result, all mice have one copy of this altered gene in all their tissues. Mice homozygous for the disrupted gene exhibit many features common to young cystic fibrosis patients, including failure to thrive, meconium ileus, and alteration of mucous and serous glands.
Membrane proteins that allow the exchange of chloride ions for bicarbonate ions across the cellular membrane. The action of specific antiporters in this class serve important functions such as allowing the efficient exchange of bicarbonate across red blood cell membranes as they passage through capillaries and the reabsorption of bicarbonate ions by the kidney.
Bicarbonate transporters that move BICARBONATE IONS in exchange of CHLORIDE IONS or SODIUM IONS across membranes. They regulate acid-base HOMEOSTASIS, cell volume and intracellular pH. Members include CHLORIDE-BICARBONATE ANTIPORTERS (SLC4A1, 2, 3, and 9); SODIUM-COUPLED BICARBONATE TRANSPORTERS (SLC4A4 and 5, 7, 8 and 10); and a sodium borate cotransporter (SLC4A11 protein).
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