Fibrosis Associated Protein Inhibitor (FAPI) Radiotracer-based Imaging to Identify Fibrotic Intestinal Crohn's Disease

ConditionCrohn Disease
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-90
SponsorUniversity of Edinburgh

About this trial

Crohn's Disease (CD) is a chronic inflammatory condition that can affect any part of the intestine and currently has no cure. It affects 6.8 million people worldwide with UK healthcare costs in excess of £1 billion per year. Recent data suggests that the despite significant progress in treatments over the last 2 decades to help control disease, up to half of patients still develop progressive bowel scarring that require surgery and up to 70% needing surgery within 10-20 years from diagnosis. Unfortunately this is not a cure and some still require repeat surgery. These features have a devastating impact on an individual including education, work and social life. All our current treatments focus on resolving inflammation but there are no treatments targeting fibrosis, its activity and its progression. A major hurdle in our progress towards anti-fibrotic treatments and advancing care in CD has been our inability to identify bowel scarring accurately using non-invasive tests; this being critical in developing new treatments that prevent permanent bowel damage.

We are also unable to identify early stage scarring (fibrosis) and once established we are unable to differentiate between different stages of scarring severity.

The investigators aim to investigate a novel method that can identify early scarring and track progressive bowel damage by tracking cells that cause fibrosis. In this study the investigators will use a 'dye', also known as fibrosis associated protein inhibitor (FAPI), that tracks scarring and its activity in the intestine. The presence and amount of FAPI within an area of scarring can be detected using our current imaging tests (positron emission tomography and Computer Tomography imaging: PET/CT). If successful, this study will be the first method for detecting scarring activity in CD and have the potential to revolutionise care for this condition and facilitate new drug development to halt the processing of scarring (fibrosis) and improve the outcomes for patients with CD.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Crohn's disease with ileal involvement (including those with disease recurrence in the neo-terminal ileum) due to commence biologics.

Disqualifiers

Inability or unwilling to give informed consent.

History of claustrophobia or feeling of inability to tolerate supine position for the PET/MRI or PET/CT scans.

Impaired renal function with eGFR of <30 mL/min/1.73m2

Women who are pregnant or breastfeeding. Pregnancy test will be performed in all women of childbearing age

Trial population

Individuals with Crohn's disease and small bowel involvement

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

Fibrosis activity

To establish and quantify the intestinal fibrosis activity in patients with active fibrostenosing Crohn's disease phenotype (Montreal B2) and assess its utility in predicting fibrosis progression over time

Time frame
36 months

Secondary outcomes

Other outcomes

Sponsors and contacts

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