Patient's Query
Hello doctor,
I am a 44-year-old woman with psoriatic arthritis. My doctor mentioned that targeted biologic drugs are more effective if certain genetic markers are present. I would also like to know:
Does that mean I need cancer genome testing or genetic profiling before starting treatment?
How expensive are these tests, and how reliable are they in predicting treatment success?
My joints ache constantly, and I am losing patience with painkillers. Are biologic drugs safe for women who have mild liver issues?
Please help.
Thank you in advance.
Hi,
Welcome to icliniq.com.
I completely understand how exhausting and frustrating it can be to live with the daily pain and stiffness caused by psoriatic arthritis (an autoimmune condition where the immune system attacks the joints and skin), especially when usual painkillers are no longer providing enough relief. Psoriatic arthritis is a chronic autoimmune disease, and biologic therapies have truly transformed treatment for many people by specifically targeting the inflammatory pathways that drive the disease.
When your doctor mentioned genetic markers, they were likely referring to immune-related genes such as HLA-B27 (a gene linked to inflammation and certain autoimmune conditions) or other markers that can help guide diagnosis and, in some cases, suggest how aggressive the disease might be. However, this is not the same as cancer genetic testing or full genome profiling. These are simple, focused blood tests and are not mandatory before starting biologic treatment. Most patients do not need extensive genetic testing to begin therapy, as the choice of biologic is usually based on clinical features, disease severity, and how you have responded to prior medications.
Regarding cost and reliability, genetic marker tests can sometimes help predict response to specific treatments, but their accuracy is still limited, and they are not used alone to decide on therapy. The main factors your doctor considers are your symptoms, inflammation levels, and how the disease affects your joints and quality of life.
Biologic drugs such as Adalimumab, Etanercept, or Secukinumab are highly effective in controlling pain, reducing joint damage, and improving daily function. As for your mild liver issues, most biologics are considered safe because they do not directly affect liver metabolism the way traditional disease-modifying drugs such as Methotrexate (a medication that suppresses the immune system to control inflammation) sometimes do. However, your doctor will likely monitor your liver function regularly, especially if you are taking other medications alongside biologics. It is also important to avoid alcohol and unnecessary over-the-counter pain medicines that can strain the liver.
With the right biologic therapy and careful monitoring, many people regain control of their symptoms, reduce inflammation, and return to a more active and comfortable life.
I hope this helps.
Kindly revert so I can assist you further.
Thank you.
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Answered byDr. Ashraf Ghani
Medically reviewed byiCliniq medical review team
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