Joel R. Pekow, MD

  • Associate Professor of Medicine
  • Clinical Interests: Colon Cancer, Colon Cancer Prevention, Crohns Disease, Fecal microbiota transplantation, Inflammatory Bowel Disease, Recurrent Clostridium Difficile infection, Ulcerative Colitis
  • Websites: Research Network Profile
  • Contact: pekow@uchicago.edu

The main focus of this laboratory is to investigate mechanisms of predictors of disease progression, response to therapy, and colon cancer development in patients with inflammatory bowel disease.

Real-World Effectiveness and Safety of Upadacitinib in Crohn's Disease: A Multicenter Study.
Real-World Effectiveness and Safety of Upadacitinib in Crohn's Disease: A Multicenter Study. Clin Gastroenterol Hepatol. 2025 Mar 08.
PMID: 40058746

Mirikizumab in the Treatment of Ulcerative Colitis: Initial Real-World Data in a Population from a Large Tertiary Center.
Mirikizumab in the Treatment of Ulcerative Colitis: Initial Real-World Data in a Population from a Large Tertiary Center. Dig Dis Sci. 2025 Mar 06.
PMID: 40048134

Real-World Effectiveness of Ustekinumab in Ulcerative Colitis in a United States Multicenter Cohort Consortium.
Real-World Effectiveness of Ustekinumab in Ulcerative Colitis in a United States Multicenter Cohort Consortium. Inflamm Bowel Dis. 2025 01 06; 31(1):131-139.
PMID: 38531068

Endoscopic Normalization and Transition of J-Pouch Phenotypes Over Time in Patients With Inflammatory Bowel Disease.
Endoscopic Normalization and Transition of J-Pouch Phenotypes Over Time in Patients With Inflammatory Bowel Disease. Inflamm Bowel Dis. 2025 01 06; 31(1):63-71.
PMID: 38916136

A Comparative Analysis of Clinical Symptoms and Modified Pouchitis Disease Activity Index Among Endoscopic Phenotypes of the J Pouch in Patients With Inflammatory Bowel Disease.
A Comparative Analysis of Clinical Symptoms and Modified Pouchitis Disease Activity Index Among Endoscopic Phenotypes of the J Pouch in Patients With Inflammatory Bowel Disease. Crohns Colitis 360. 2024 Jul; 6(3):otae045.
PMID: 39347443

Endoscopic Normalization and Transition of J-Pouch Phenotypes Over Time in Patients With Inflammatory Bowel Disease.
Endoscopic Normalization and Transition of J-Pouch Phenotypes Over Time in Patients With Inflammatory Bowel Disease. Inflamm Bowel Dis. 2024 Jun 25.
PMID: 38916136

Development of Luminescent Biosensors for Calprotectin.
Development of Luminescent Biosensors for Calprotectin. ACS Chem Biol. 2024 06 21; 19(6):1250-1259.
PMID: 38843544

Real-World Effectiveness of Ustekinumab in Ulcerative Colitis in a United States Multicenter Cohort Consortium.
Real-World Effectiveness of Ustekinumab in Ulcerative Colitis in a United States Multicenter Cohort Consortium. Inflamm Bowel Dis. 2024 Mar 26.
PMID: 38531068

Real World Clinical Effectiveness and Safety of Ozanimod in the Treatment of Ulcerative Colitis: 1-Year Follow-Up from a Tertiary Center.
Real World Clinical Effectiveness and Safety of Ozanimod in the Treatment of Ulcerative Colitis: 1-Year Follow-Up from a Tertiary Center. Dig Dis Sci. 2024 Feb; 69(2):579-587.
PMID: 38087126

Inflammation in the proximal colon is a risk factor for the development of colorectal neoplasia in inflammatory bowel disease patients with primary sclerosing cholangitis.
Inflammation in the proximal colon is a risk factor for the development of colorectal neoplasia in inflammatory bowel disease patients with primary sclerosing cholangitis. Therap Adv Gastroenterol. 2023; 16:17562848231184985.
PMID: 37692199

View All Publications