Liver Disease CRO

Complex programs, purpose-built team

Ensure success for your next liver disease clinical trial with our expert-led, partnership-based approach that supports complex liver programs at every stage.

The hardest ask in a liver trial is the one you make of patients

A liver trial asks a lot of the people in it. In MASH, more than 75% of screened patients never reach randomization, most because a baseline biopsy doesn’t confirm fibrotic disease. Those who qualify face repeat biopsies, MRI, and histology-anchored Phase III programs that run 52 weeks or longer. Each step is a place a patient may drop out, and a program may stall. Worldwide designs to reduce that burden: non-invasive enrichment and pre-screening to cut failed biopsies, imaging and biomarker strategies that ease reliance on histology, and retention built to hold patients through long programs.

A Team Dedicated Solely to Liver Disease

Our dedicated team brings scientific depth, site relationships, operational experience, and protocol design insight built through years of focused trial delivery.

One Team Owns Your Endpoint Data

Biopsy collection and reads, biomarker composite scoring, imaging modalities, and central lab coordination are all managed within one scientific team, from first sample through the final pathology read.

Protocol That Stays Ahead of Regulatory Change

Endpoint strategy, fibrosis stratification, biomarker composite scoring, and surrogate endpoint selection go into every protocol from day one, keeping your program aligned with FDA and EMA guidance as it shifts.

Specialized Liver Disease CRO Across Phases, Indications & Modalities

Worldwide supports the full spectrum of liver disease, from large-scale metabolic programs to rare and acute indications requiring deep specialist expertise.

  • MASH/MASLD
  • Cholestatic Liver Disease
  • Acute, Rare, & Additional Liver Indications

The Access, Expertise, & Flexibility Your Program Needs

700+ Globally Experienced Liver Sites

Direct access to high-performing liver sites means faster activation and stronger recruitment across complex and rare indications.

Recognized Scientific Leadership in Liver Disease

Our liver team’s published thought leadership and KOL relationships reflect scientific credibility that goes beyond operational delivery.

Full-Service, FSP, & Hybrid Delivery Options

Whether you need end-to-end trial management or targeted functional support, one dedicated team stays consistent throughout.

Expertise Built Over Decades

Worldwide’s liver team brings deep scientific and operational experience across every major liver indication and phase of clinical development.

Attila Timar-Peregrin, MD, PhD

Executive Director, Medical Affairs & Therapeutic Area Lead, Digestive Diseases

Juliane K. Mills, MS, MPH

Executive Director, Therapeutic Strategy Lead, Rare Disease

Casey Ustick

Therapeutic Strategy Lead, Metabolic

Your Program, Supported by One Dedicated Team

At Worldwide, you work directly with liver-experienced medical directors, senior project managers, and scientific leaders who bring continuity, specialized insight, and hands-on partnership from first conversation through final analysis.

A Track Record Built on Liver-Specific Experience

Worldwide has delivered liver programs at every scale, from rare indication Phase II through global Phase III MASH biopsy programs.

4.5

Months Ahead of Schedule

700+

Globally Experienced
Liver Sites

150+

Routine
Partnerships

5,000+

Patients Across

30+

Countries

Your Questions Answered

We have answered the questions sponsors ask most often. If yours isn’t here, our liver team is happy 
to help.

MASH and MASLD are the core, with Phase I through Phase III delivery. Rare and cholestatic coverage includes PBC, PSC, autoimmune hepatitis, PFIC, Alagille syndrome, biliary atresia, alpha-1 antitrypsin deficiency, and Wilson disease. On the acute side: acute liver failure, ACLF, alcoholic hepatitis, cirrhosis, HCC, and DILI. If it involves the liver, we have likely been there.

700+ sites globally experienced in liver disease studies, with 150+ routinely partnered high-performing liver sites across 30+ countries. These are ongoing relationships, not cold contacts, which matters when you need fast activation on a rare indication or a compressed timeline.

MASH Phase III: 668 subjects across 150 sites. Phase II: 151 patients across 120 sites, 89 patients across 15 sites, and 69 patients across 20 sites. Phase I: 112 patients in one early phase unit, 67 patients in one Early Phase Unit. All programs incorporate biopsy management, MRI-PDFF, Fibroscan, and biomarker composite scoring.

Our team tracks FDA and EMA guidance closely, including the FDA acceptance of FibroScan LSM as a reasonably likely surrogate endpoint and the F2/F3 vs. F4 stratification picture following the semaglutide approval. Surrogate endpoint strategy and biomarker composite scoring go into protocol design from the start.

PSC Phase II: 110+ patients across 65+ sites in 11 countries, with the enrollment milestone met four and a half months early. PBC Phase I: 18 patients in an early phase unit. Acute Liver Failure Phase II: 250 subjects across 35 sites globally. Our KOL relationships, PAG connections, and specialist sites are built over time, so when your program needs them, they are ready.

Biopsy collection, processing, and reads are delivered inside our liver team, not outsourced. Imaging (i.e., MRI-PDFF, MRE, and Fibroscan) and biomarker composite scoring (i.e., MASH, fibrosis score, FIB-4, APRI, FirborSURE/FibroTest, and ELF) are integrated under the same scientific leadership.

The liver and metabolic franchises sit inside one business unit, with scientific leaders who work together as one team. Cross-franchise programs, including obesity-into-MASH, GLP-1 combination and MASH, and whole-body obesity, receive integrated scientific input from day one.

Worldwide maintains strong relationships with leading liver KOLs and scientific experts. The team’s thought leadership includes the Pitfalls and Best Practices: Clinical Trial Design in MASH infographic, co-authored by Peyton Sandroni, MarieElena Cordisco, Attila Timar-Peregrin, and Michael Murphy.