Stabilization of therapeutic microbes for inclusion in a liquid matrix for delivery to the intestines

Ended Project Grant Awarded Last action

Award ID
R43GM146506
Recipient
Awarding agency
Obligated
$887,772

Award facts

Assistance listing
93.859 Biomedical Research and Research Training
Completion date
Place of performance
Washington, DC, USA

Award details come from USAspending.gov.

Description

Abstract
Enteral feeding (EF) is an essential medical procedure used to supply nutrients directly to the gastrointestinal (GI) tract of patients who are unable to eat independently. EF formula is often purchased as a ready-to-use liquid that contains carbohydrates, protein, fats, and micronutrients to ensure adequate nutritional benefit for the patient. The addition of therapeutic probiotics to EF formula has been shown to improve patient health and recovery, while reducing the cost burden to patients and hospitals. However, specific challenges remain which have prevented widespread use. These include: an instability of probiotics in nutrient rich, complex liquid mediums, including high FAT, salt, or sugar liquids and biphasic systems such as emulsions and collo IDS, a narrow list of compatible probiotics with marginal therapeutic benefit, a risk of cross-contamination during handling/reconstitution of powder probiotics, sedimentation/aggregation of probiotics, causing blockage of the feeding tube, inactivation of the probiotics by the acidic stomach environment, and a lack of proper adhesion and growth in the gastrointestinal tract. A platform drug delivery technology which encapsulates cells and stabilizes the compounds during storage and digestion while facilitating both mucoadhesion and direct growth on intestinal surfaces has previously been developed and will be optimized for use in liquid EF nutritional formula in this proposal. Lactobacillus rhamnosus HN001, a microbe reported to support GUT health and the immune system, will be coated with the platform technology and evaluated for performance and shelf life stability in a complex liquid EF formula. Furthermore, multiple excipients with moisture barrier features will be explored in an effort to extend the liquid shelf life stability.

Transactions

Action Obligated Date
Amendment $0
Amendment $295,924
Amendment $295,924
Original award $295,924

Quick answers

Who received award R43GM146506?

R43GM146506 was awarded to Vitakey Inc. by National Institute of General Medical Sciences (National Institutes of Health) on February 1, 2023.

How much is award R43GM146506 worth?

$887,772 has been obligated on R43GM146506.

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