Patient's Query
Hi doctor,
My brother is 27, and his MRI enterography showed a thickened terminal ileum with skip lesions, confirming Crohn’s disease. His fecal calprotectin is 520 µg/g, and CRP is 28 mg/L.
He is on steroids and Azathioprine, but still experiences mild pain and fatigue. How long do these medications take to start working effectively? When do doctors decide to start biologics like Infliximab or Adalimumab?
Also, can lifestyle factors such as stress or specific foods actually trigger flare-ups, even when medication is taken regularly? Lastly, is there any blood test or imaging that can help predict the severity or progression of the disease?
Please advise.
Hello,
Welcome to icliniq.com.
I understand your concern.
I am really sorry to hear what your brother is going through, as Crohn’s disease can be very challenging to manage both physically and emotionally.
The findings you mentioned, such as thickened terminal ileum with skip lesions, along with elevated calprotectin and CRP (C-reactive protein), indicate active inflammation. Steroids are usually prescribed for short-term control of flares and typically start improving symptoms within a few days to a couple of weeks.
Azathioprine, on the other hand, is a maintenance medication that helps reduce the immune response and prevent future flares, but it can take up to 8 to 12 weeks to show its full effect.
During this period, it is important to continue steroids until the Azathioprine begins working, and then taper them slowly to minimize side effects.
If your brother continues to have significant symptoms or ongoing inflammation despite adequate doses of steroids and Azathioprine, biologic therapy such as Infliximab, Adalimumab, or Ustekinumab may be considered.
These drugs target specific inflammatory molecules in the gut and are highly effective for inducing and maintaining remission, promoting mucosal healing, and reducing the need for steroids.
Biologics are generally introduced when traditional treatments fail to control inflammation, when there are complications such as fistulas or strictures, or when the disease is moderate to severe at diagnosis. They are safe for long-term use under close medical supervision, with regular blood monitoring for infections or other side effects.
Lifestyle factors also play an important role. Stress does not cause Crohn’s disease but can trigger flare-ups or worsen symptoms by affecting the gut–brain axis. Managing stress through mindfulness, counseling, or relaxation techniques can help stabilize the disease. Dietary triggers vary between individuals, but many people with Crohn’s find that spicy foods, caffeine, dairy, alcohol, and high-fat meals worsen their symptoms.
To monitor disease activity and predict progression, doctors use a combination of tests, such as:
Blood markers such as CRP and ESR (erythrocyte sedimentation rate).
Stool calprotectin.
Imaging studies like MRI (magnetic resonance imaging), enterography, or intestinal ultrasound help assess inflammation.
Periodic colonoscopy can evaluate mucosal healing.
Some genetic and serologic markers, such as ASCA (anti-saccharomyces cerevisiae antibodies), may be associated with disease behavior, but they are not reliable predictors on their own.
Regular follow-up is essential to track these parameters and adjust treatment early if needed.
I hope this has helped you.
Please feel free to reach out to me again if you have further queries.
Thank you.
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Answered byDr. Ashraf Ghani
Medically reviewed byiCliniq medical review team
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