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Hyperbaric Oxygen Therapy for Ulcerative Colitis Patients Hospitalized for Moderate to Severe Flares: A Phase 3 Multi-Center, Randomized, Double-Blind, Sham-Controlled Trial

Award Number: U01DK134321
ORGANIZATION: NATIONAL INSTITUTE OF DIABETES & DIGESTIVE & KIDNEY DISEASES
OPDIV: NIH
AWARD CLASS: COOPERATIVE AGREEMENT
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 03/15/2023
PERIOD OF PERFORMANCE END DATE: 02/29/2028

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Hyperbaric Oxygen Therapy for Ulcerative Colitis Patients Hospitalized for Moderate to Severe Flares: A Phase 3 Multi-Center, Randomized, Double-Blind, Sham-Controlled Trial - PROJECT SUMMARY Ulcerative colitis is one of the most expensive medical conditions in the United States, with a considerable amount of these costs being incurred during hospitalizations for acute flares. A substantial proportion of ulcerative colitis patients hospitalized for acute flares will fail to respond to intravenous steroids and require second line therapies such as biologics and/or colectomy, which can be associated with significant morbidity and mortality. Ulcerative colitis patients who are hospitalized or have recently been hospitalized for acute flares are excluded from traditional phase 2 and 3 drug development trials because of how high risk they are for progression to colectomy or re-admission. Novel, safe, and effective treatments are needed to optimize outcomes in this high-risk orphan population. A hallmark of ulcerative colitis is chronic intestinal mucosal hypoxia and inflammation, with an accompanying dysfunction in hypoxia response pathways and preferential activation of pathogenic immune cells including neutrophils. Hyperbaric oxygen therapy involves breathing 100% oxygen under increased atmospheric pressure to increase tissue oxygenation. In a phase 2 trial program we demonstrated that this increased oxygenation of mucosal tissue leads to improvements in disease activity in ulcerative colitis, reductions in inflammatory markers, and prevention of progression to biologics or colectomy during hospitalizations for acute flares. In the current proposal we aim to 1) confirm the impact of hyperbaric oxygen therapy on disease outcomes in ulcerative colitis patients hospitalized for acute flares through a multi-center, double-blind, sham- controlled, clinical trial. We further aim to explore the mechanisms through which hyperbaric oxygen therapy improves disease activity by studying the hyperbaric oxygen specific effects on 2) neutrophils and epithelial cells, and 3) the microbiome. Confirmation of treatment efficacy for hyperbaric oxygen therapy would bring forward a novel therapy for a high-risk population of ulcerative colitis patients who are traditionally excluded from traditional clinical trial programs, while also advancing our understanding of disease pathogenesis and the interplay between hypoxia, the immune system, and the microbiome.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $2,478,728 )
2026	2026	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	4	3/2/2026	NON-COMPETING CONTINUATION	$2,478,728
														Subtotal = $2,478,728

Issue Date FY: 2025 ( Subtotal = $2,464,155 )
2025	2025	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	3	7/23/2025	NON-COMPETING CONTINUATION	$2,464,155
														Subtotal = $2,464,155

Issue Date FY: 2024 ( Subtotal = $2,365,589 )
2024	2024	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	2	3/7/2024	NON-COMPETING CONTINUATION	$2,217,740
2024	2024	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	2	5/16/2024	NON-COMPETING CONTINUATION	$147,849
														Subtotal = $2,365,589

Issue Date FY: 2023 ( Subtotal = $2,439,584 )
2023	2023	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	001	1	7/21/2023	NEW	$0
2023	2023	NORTHWESTERN UNIVERSITY	633 CLARK ST	EVANSTON	IL	60208	COOK	USA	Diabetes, Digestive, and Kidney Diseases Extramural Research	000	1	3/8/2023	NEW	$2,439,584
														Subtotal = $2,439,584

Grand Total All Awards = $9,748,056

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Hyperbaric Oxygen Therapy for Ulcerative Colitis Patients Hospitalized for Moderate to Severe Flares: A Phase 3 Multi-Center, Randomized, Double-Blind, Sham-Controlled Trial

Award Number: U01DK134321

ORGANIZATION: NATIONAL INSTITUTE OF DIABETES & DIGESTIVE & KIDNEY DISEASES

OPDIV: NIH

AWARD CLASS: COOPERATIVE AGREEMENT

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 03/15/2023

PERIOD OF PERFORMANCE END DATE: 02/29/2028

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