Brad Constant, MD

Professional Titles

• Assistant Professor

Research Interests

My research interests are centered around improving the care of children with inflammatory bowel disease. These include 1) causal inference-based research methods to inform common yet challenging clinical scenarios faced by pediatric gastroenterologists, and 2) outline the burden and impact of insurance-related barriers to care faced by patients with inflammatory bowel disease, develop strategies to counteract these processes, and participate in advocacy efforts aimed at reform.

Publications

• Constant BD, de Zoeten EF, Weinman JP, Albenberg L, Scott FI. Early Anti-Tumor-Necrosis-Factor Therapy for Crohn's Disease-Related Abdominal Abscesses and Phlegmon in Children. Dig Dis Sci. 2023 Mar;68(3):877-888. PubMed PMID: 35790702
• Constant BD, de Zoeten EF, Stahl MG, Vajravelu RK, Lewis JD, Fennimore B, Gerich ME, Scott FI. Delays Related to Prior Authorization in Inflammatory Bowel Disease. Pediatrics. 2022 Mar 1;149(3). PubMed PMID: 35190811
• Constant BD, Baldassano R, Kirsch J, Mitchel EB, Stein R, Albenberg L. Tofacitinib Salvage Therapy for Children Hospitalized for Corticosteroid- and Biologic-Refractory Ulcerative Colitis. J Pediatr Gastroenterol Nutr. 2022 Dec 1;75(6):724-730. PubMed PMID: 36122389
• Constant BD, Dutmer CM, Arnold MA, Hall C, Abbott JK, de Zoeten EF. Cytotoxic T-Lymphocyte-Associated Antigen 4 Haploinsufficiency Mimics Difficult-to-Treat Inflammatory Bowel Disease. Clin Gastroenterol Hepatol. 2022 Apr;20(4):e696-e702. PubMed PMID: 33965572
• Constant BD, Scott FI. The PA System: Is Prior Authorization for Dose Escalation of IBD Biologic Therapy a Tolerable Alternative or a Perpetual Annoyance?. Dig Dis Sci. 2023 Dec;68(12):4279-4281. PubMed PMID: 37792128
• Lewis JD, Parlett LE, Jonsson Funk ML, Brensinger C, Pate V, Wu Q, Dawwas GK, Weiss A, Constant BD, McCauley M, Haynes K, Yang JY, Schaubel DE, Hurtado-Lorenzo A, Kappelman MD. Incidence, Prevalence, and Racial and Ethnic Distribution of Inflammatory Bowel Disease in the United States. Gastroenterology. 2023 Nov;165(5):1197-1205.e2. PubMed PMID: 37481117
• Constant BD, Albenberg L, Mitchel EB, De Zoeten EF, Clapp JT, Scott FI. Prior Authorizations Delay Therapy, Impact Decision-making, and Lead to Adverse Events in Inflammatory Bowel Disease: 2022 Provider Survey. Clin Gastroenterol Hepatol. 2023 Jun 30. [Epub ahead of print] PubMed PMID: 37394025
• Constant BD, Khushal S, Jiang J, Bost JE, Chaisson E, Conklin LS. Early Inflammatory Markers are Associated With Inadequate Post-Induction Infliximab Trough in Pediatric Crohn's Disease. J Pediatr Gastroenterol Nutr. 2021 Mar 1;72(3):410-416. PubMed PMID: 33439565
• Dawwas GK, Weiss A, Constant BD, Parlett LE, Haynes K, Yang JY, Brensinger C, Wu Q, Pate V, Jonsson Funk M, Schaubel DE, Hurtado-Lorenzo A, David Kappelman M, Lewis JD. Development and Validation of Claims-Based Definitions to Identify Incident and Prevalent Inflammatory Bowel Disease in Administrative Healthcare Databases. Inflamm Bowel Dis. 2023 Dec 5;29(12):1993-1996. PubMed PMID: 37043675
• Constant BD, Baldassano R, Kirsch J, Mitchel EB, Stein R, Albenberg L. Tofacitinib Salvage Therapy for Children Hospitalized for Corticosteroid- and Biologic-Refractory Ulcerative Colitis. J Pediatr Gastroenterol Nutr. 2022 Dec 1;75(6):724-730. PubMed PMID: 36122389
• Constant BD, de Zoeten EF, Weinman JP, Albenberg L, Scott FI. Early Anti-Tumor-Necrosis-Factor Therapy for Crohn's Disease-Related Abdominal Abscesses and Phlegmon in Children. Dig Dis Sci. 2023 Mar;68(3):877-888. PubMed PMID: 35790702
• Constant BD, Albenberg L, Mitchel EB, de Zoeten EF, Clapp JT, Scott FI. Prior Authorizations Delay Therapy, Impact Decision Making, and Lead to Adverse Events in IBD: 2022 Provider Survey. Clin Gastroenterol Hepatol. 2023 Jun 30. [Epub ahead of print] PubMed PMID: 37394025
• Constant BD, de Zoeten EF, Stahl MG, Vajravelu RK, Lewis JD, Fennimore B, Gerich ME, Scott FI. Delays Related to Prior Authorization in Inflammatory Bowel Disease. Pediatrics. 2022 Mar 1;149(3). PubMed PMID: 35190811
• Constant BD, Dutmer CM, Arnold MA, Hall C, Abbott JK, de Zoeten EF. Cytotoxic T-Lymphocyte-Associated Antigen 4 Haploinsufficiency Mimics Difficult-to-Treat Inflammatory Bowel Disease. Clin Gastroenterol Hepatol. 2022 Apr;20(4):e696-e702. PubMed PMID: 33965572
• Constant BD, Weinman JP, Stahl MG. Dissecting Duodenal Hematoma: A Rare but Serious Complication of Esophagogastroduodenoscopy. JPGN Rep. 2021 May;2(2):e052. PubMed PMID: 37207074
• Dawwas GK, Weiss A, Constant BD, Parlett LE, Haynes K, Yang JY, Brensinger C, Wu Q, Pate V, Jonsson Funk M, Schaubel DE, Hurtado-Lorenzo A, David Kappelman M, Lewis JD. Development and Validation of Claims-Based Definitions to Identify Incident and Prevalent Inflammatory Bowel Disease in Administrative Healthcare Databases. Inflamm Bowel Dis. 2023 Apr 12. [Epub ahead of print] PubMed PMID: 37043675

Practice Locations

Children's Hospital Colorado Anschutz Medical Campus
13123 East 16th Ave
Aurora, CO 80045
720-777-1234

Hospital Affiliation

• Children's Hospital Colorado

Center Affiliations

• Colorado Clinical & Translational Sciences Institute (CCTSI)

Specialty Information

Specialties

• Pediatrics, Board Certification (2018)
• Pediatric Gastroenterology, Board Certification (2021, 2021)

Conditions & Treatments

• Digestive System - Inflammatory Bowel Disease (IBD): Crohn’s disease, ulcerative colitis, microscopic colitis
• Digestive System
• Digestive System - Gastroenterology (Stomach, Bowel, General GI Problems)