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Anti-adalimumab antibodies

Medicine levels · also printed as Anti-adalimumab, Adalimumab antibodies, AAA, Anti-drug antibodies (adalimumab), Adalimumab ADA

Typical UK adult rangeExpected result: Negative

Negative is the expected result; a low positive with a good drug level is often of no consequence.

What this test measures

These are antibodies the immune system has made against the medicine itself. They can clear the medicine from the blood and stop it working.

Why doctors request it

Measured alongside the drug level when the condition flares.

What commonly pushes it up

Antibodies against the medicine, more likely when it is given irregularly or without a partner medicine

What commonly pushes it down

A negative result is the usual finding

Everyday reasons for a value outside the range

Results can be equivocal and are then repeated
Recent vaccination or infection elsewhere can occasionally give a weak positive

About the sample

No fasting needed.

Written by a UK consultant physician. Typical UK adult reference ranges; your laboratory's own printed range takes precedence.

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This is an educational summary of results you uploaded. It is not medical advice, a diagnosis or a treatment plan, and it does not replace the doctor who requested the test. If you are worried, or a result is marked outside range, discuss it with your doctor. Written and reviewed by a UK consultant physician. Reference ranges vary between laboratories.