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PN-943

Phase 2

Ulcerative Colitis Chronic Moderate | Small molecule | Gastrointestinal |Protagonist Therapeutics, Inc.|Trials Updated: Apr 25, 2023

PN-943 development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Aug 2020

PN-943 target and mechanism

Molecular targetalpha-4-beta-7 Integrin
Target classIntegrin
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment169

FDA Designations

No designations recorded

PN-943 clinical trials

PN-943 · 1 trial · 2 indications

Phase 2 1
NCT04504383PN-943 in Adults With Moderate to Severe Active Ulcerative Colitis (UC)Ulcerative Colitis Chronic Moderate
COMPLETED169 Analytics
PHASE2COMPLETED
PN-943 in Adults With Moderate to Severe Active Ulcerative Colitis (UC)
Ulcerative Colitis Chronic ModerateUnlock trial analytics

Study Endpoints

Primary Endpoints

Proportion of subjects achieving clinical remission at Week 12 compared to placebo.
Week 12

Clinical remission is determined using the Adapted Mayo score (sum of 3 subscores from the Mayo score): * Stool frequency subscore (SFS) * Rectal bleeding subscore (RBS) * Endoscopic subscore (ESS)

Secondary Endpoints

Comparison between PN-943 high-dose and low-dose individually to placebo.
Week 12
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PN-943 450 mg BIDEXPERIMENTALOral administration of PN-943 450 mg BID
PN-943 150 mg BIDEXPERIMENTALOral administration of PN-943 150 mg BID
Placebo BIDPLACEBO_COMPARATOROral administration of matching placebo

Interventions

NameTypeDescription
PN-943DRUGAdministered by the oral route BID for the duration of the study.
PlaceboDRUGAdministered by the oral route BID for 12 weeks.
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites122

Key Inclusion Criteria: 1. Male and female subjects age 18 (or the minimum country specific age of consent if \>18) to 75 years. 2. Subject understands the study procedures and agrees to participate in the study by giving written informed consent. 3. Diagnosis of UC supported by appropriate documen...

Countries:United StatesAustriaBulgariaCanadaGeorgiaGermanyHungaryItalyPolandRussiaSerbiaSouth KoreaUkraine
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Frequently asked questions about PN-943

What is PN-943?

PN-943 is an investigational oral small molecule developed by Protagonist Therapeutics, Inc. for chronic moderate ulcerative colitis. It is an integrin-targeted therapy that has completed a Phase 2 clinical trial. PN-943 is not approved and remains in clinical development.

What is PN-943 used for in ulcerative colitis?

PN-943 is being developed for the treatment of chronic moderate ulcerative colitis, a form of inflammatory bowel disease affecting the colon. It was studied in adults with moderate to severe active ulcerative colitis. The drug is investigational and has not been approved for any indication.

What does PN-943 target?

PN-943 targets alpha-4-beta-7 integrin, a member of the integrin target class. Alpha-4-beta-7 integrin mediates lymphocyte trafficking to the gastrointestinal tract, and blocking it is intended to reduce gut inflammation in ulcerative colitis.

Who makes PN-943?

PN-943 is developed by Protagonist Therapeutics, Inc., which trades on the Nasdaq under the ticker PTGX. The company is a clinical-stage biopharmaceutical company focused on peptide and small molecule therapeutics.

What phase is PN-943 in?

PN-943 is in Phase 2 development. Its single Phase 2 trial, NCT04504383, has been completed. The study was randomized, double-blind, and placebo-controlled, enrolling 169 adults with moderate to severe active ulcerative colitis across the United States, Europe, and South Korea.

What clinical trials is PN-943 in?

PN-943 has been studied in one Phase 2 trial, NCT04504383, titled PN-943 in Adults With Moderate to Severe Active Ulcerative Colitis. The trial enrolled 169 participants, was randomized, double-blind, and placebo-controlled, and has completed. It included sites in the United States, Canada, Europe, and South Korea.