Gastroenterology CRO Services

Navigate the GI landscape with the CRO dedicated to on-time delivery

In the busy gastrointestinal research landscape, you need to be ahead of the game: secure the interest of the top sites, optimize countries for costs, account for the placebo response rates, and more. Choose the CRO with the global expertise to deliver your pivotal program on time.

50%+

higher enrollment rates

1st

ever platform studies in IBD

6,000

GI sites in 60 countries

Leading GI Pivotal Trial Solutions

Change isn’t coming to gastroenterology research — it’s already here, driven by the emergence of innovative therapies and advanced technologies.

AI is reshaping how studies are designed and executed, defining new subpopulations for more targeted treatments and enhancing data analysis. Meanwhile, the development of combination therapies, bispecific antibodies, and TL1A inhibitors is offering new avenues for treatment, particularly in complex conditions like inflammatory bowel diseases.

When you’re planning a study in this evolving space, you need a GI and IBD CRO that can help you stay ahead of the curve while still meeting enrollment milestones. Your path to success starts with PSI. With expertise running pivotal programs in over 60 countries and pioneering novel study designs in the area, we’ll help match your trial to experienced sites with the interest, patients, and site resources to enroll on time and on budget. 

PSI Gastroenterology Highlights

  • Delivered some of the largest IBD programs in the industry
  • Managed some of the most complex combination and platform studies in the industry
  • Pioneered the use of Magnetic Resonance Enterography (MRE) and ultrasound for GI-specific studies
  • Partner with 6,000 GI sites in 60 countries
  • Enroll 50%+ faster in GI indications
  • Employ in-house board-certified gastroenterologists in medical monitoring team
  • Partner with 20 gastroenterology KOLs on PSI Scientific Advisory Board

Unwavering commitment to on-time delivery in GI trials

Case Study

On-time enrollment of patients with celiac disease

PSI Gastroenterology & IBD Therapeutic Expertise

Indications

  • Celiac disease
  • Clostridioides difficile (C. diff) infection
  • Crohn’s disease
  • Fibrostenosing Crohn’s disease
  • Diarrhea
  • Erosive esophagitis
  • Gastroesophageal reflux disease (GERD)
  • Helicobacter pylori infection
  • Short bowel syndrome
  • Ulcerative colitis
  • Viral hepatitis

Drug Classes

  • ALK5 inhibitors
  • Bispecific antibodies
  • Antisense oligodeoxynucleotide to Smad7
  • Colon-targeted adsorbents
  • CSF-1R inhibitors
  • Essential nutrients
  • GLP-2 analogs
  • GM-CSF
  • GPR84 modulators
  • HIF-1 modulators
  • IL-15 inhibitors
  • IL23p19 inhibitors
  • JAK 1 inhibitors
  • MC1R agonists
  • Mesalamines
  • Microbiome therapeutics
  • OX-40 inhibitors
  • P-CABs
  • PD-1 agonists
  • PPIs
  • PSGL-1 agonists
  • S1P receptor modulators
  • SMAD7 ASO
  • TL1A inhibitors
  • TYK2 inhibitors
  • α4β7 integrin inhibitors
  • Other monoclonal antibodies and immunomodulators

Trial Design

  • Induction with randomized withdrawal maintenance (with or without reinduction)
  • Combination studies
  • Long-term extension studies
  • Platform studies
  • Treat-through designs
  • Umbrella studies

PSI is the gold standard in IBD studies.

Specialized GI Trial Support Services

Advanced Site Selection for GI Studies

If you’re planning an IBD study, the highly competitive landscape and the need for advanced therapy-pretreated patients will define your strategy. If you’re targeting other GI indications, competition is lower, but you’ll need sites that have a regular flow of patients and can mine their databases, but may have less experience.

With over 13,000 GI sites on the planet and 6,000 actively participating in GI studies, site selection for your global study can be overwhelming. Combining 30 years of internal data with multiple public and in-licensed external data sources, PSI’s SYNETIC™ site knowledge engine captures historical performance metrics, operational capacity, and patient recruitment potential for different indications in real-time, matching high-potential sites to your protocol.

If identifying the right study geography has slowed down your enrollment in the past, PSI’s VISIONAL™ feasibility/financial planning platform will help model and compare hundreds of reliable enrollment scenarios, their budgets, and probabilities of success with your chosen preferences and constraints in mind.

Strategic Site Support

Selecting the right sites in the right countries is essential, but it’s only the first step to keeping your study on track. GI investigators are juggling heavy workloads and competing priorities, and they need a CRO that truly appreciates the pressures they face and works to ease the burden of clinical trials.

  • PSI’s dedicated site support specialists work directly with CRAs to help sites overcome common roadblocks in gastroenterology trials. The team assists sites with timely activation of their endoscopy equipment qualifications and conducts regular analysis of video quality, with focused training delivered based on findings. That means fewer frustrated patients dropping out of the study, more motivated PIs, and no unexpected delays.
  • With 20 gastroenterology KOLs on the PSI scientific advisory board, the sites and project teams have access to expertise from treating physicians who know what’s happening with patients right now. Our Scientific Advisory Board provides support with protocol reviews, feasibility assessments, and other medical questions to ensure your study stands out in the competitive GI landscape and you get the patients and endpoint data you need.
  • To support enrollment, we set up referral networks around PSI investigator sites. Our PSI Referral Teams connect research sites and medical institutions with our experienced investigators, providing new or additional clinical trial opportunities for patients and enhancing enrollment at the sites.

Pioneering GI Therapies and Study Designs

It’s not only therapeutic products that are evolving, but also innovative study protocols, designed to speed up time to market, evaluate multiple indication applications or therapies, or prioritize efficiency and data quality. This is often uncharted territory for sites, raising questions about how this impacts day-to-day processes and increasing the potential for delays that could hinder market entry.

Through our work with the first-ever platform study design in IBD, PSI understands how to guide sites through these challenges, so your critical deadlines are met. With the right tools and training, sites aren’t just prepared but are enthusiastic about the opportunity to work on these exciting studies. This motivation translates into on-time delivery and lasting partnerships throughout your development program.

Latest Gastroenterology Resources

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Congress Highlights

Advances in IBD treatment considerations, GI trial design, and the impact of AI

Ready to meet PSI’s gastroenterology team?

It’s never too early to start thinking about where your study might fit in the competitive GI landscape. Get in touch with our experts today.

Trusted to Deliver

When you partner with PSI, you work with a team recognized by independent industry organizations and sponsor surveys for what matters most in clinical research: expertise, consistent operational excellence, and reliable delivery.