# Analysis of the use of monoclonal antibodies in the treatment of Crohn’s disease

## TL;DR

This paper reviews how monoclonal antibodies treat Crohn’s disease, highlighting current successes, limitations, and future research directions.

## Contribution

The paper proposes novel therapeutic strategies and identifies new targets for monoclonal antibodies in Crohn’s disease treatment.

## Key findings

- Current monoclonal antibodies face limitations like non-response and high costs.
- Combination therapy and personalized medicine may improve treatment outcomes.
- New targets like IL-36 and microbiome-related factors show promise for future therapies.

## Abstract

Crohn’s disease (CD) is a chronic inflammatory bowel disease with increasing global prevalence, significantly impacting patients’ quality of life and healthcare costs. The introduction of monoclonal antibodies has revolutionized CD management, offering targeted therapy against specific inflammatory pathways. This review systematically analyzes the current state of monoclonal antibody therapy, including anti-TNF-α agents (infliximab, adalimumab, certolizumab pegol), anti-integrin antibodies (vedolizumab), and anti-cytokine therapies (ustekinumab, risankizumab). Despite remarkable therapeutic advances, significant limitations persist, including primary non-response (20%–40%), secondary loss of response (13%–20% annually), immunogenicity, safety concerns, and substantial economic burden. We propose evidence-based strategies to address these challenges, including therapeutic drug monitoring, combination therapy, and personalized medicine approaches. Furthermore, we identify promising novel therapeutic targets such as IL-36, IL-17C, SMAD7, TL1A, complement components, and microbiome-related factors. Targeting two or more specific targets simultaneously appears to be a promising direction of research for the development of bi- and polyspecific monoclonal antibodies capable of interfering with multiple pathological pathways in CD. The integration of advanced antibody engineering, personalized medicine, and innovative delivery systems represents the future direction for overcoming current limitations. Achieving sustained remission for all patients through safe, effective, and accessible therapeutic interventions remains the ultimate goal in CD management.

Statement of Significance
 Despite clinical efficacy and safety, antibodies currently used for the treatment of Crohn’s disease have a number of limitations which can be addressed in two ways.The first is to modify treatment approaches and the use of these antibodies.The second is aimed at finding new therapeutic targets and developing new monoclonal antibodies.

Despite clinical efficacy and safety, antibodies currently used for the treatment of Crohn’s disease have a number of limitations which can be addressed in two ways.

The first is to modify treatment approaches and the use of these antibodies.

The second is aimed at finding new therapeutic targets and developing new monoclonal antibodies.