Unvalidated Immune Panels

The claim

Some companies and clinics sell "immune panels" that bundle markers such as antibodies, immune-cell counts, CRP or cytokines and return a score or a list of "weak spots." This page separates tests used in medicine for suspected disease from bundles marketed to well people. Labels: established (for the medical use), marketing claim, insufficient evidence.

What clinicians test, and why

Doctors investigate immune problems when someone has symptoms. A clinical review lists the usual work-up for suspected primary immune deficiency: lymphocyte proliferation assays, flow cytometry, serum immunoglobulin levels, antibody responses to vaccines, neutrophil function assays, cytokine stimulation assays and complement studies. [1] Warning signs include recurrent sinus or ear infections or pneumonias within a year, failure to thrive, persistent thrush or skin abscesses, or a family history. [1] The test order depends on the suspected problem and is guided by an immunologist. [1]

A typical single test shows the limits. An immunoglobulin test measures IgM, IgG and IgA antibodies, helps look for conditions that affect immunity, and cannot diagnose any condition by itself. [2] High levels can occur while the antibodies do not work normally, so frequent infections can still occur. [2] Some medicines can change the accuracy of results. [2] CRP shows inflammation but not its cause or location. [3]

Why a bundled panel for healthy people is unvalidated

"Validated" here means that studies show the test result predicts something that matters, in the people it is sold to. For wellness immune panels we did not find such evidence. Proper evidence not found: we checked MedlinePlus, FDA surrogate-endpoint guidance and PubMed reviews, and found no study showing that a bundled immune score in healthy people predicts infections or health outcomes. This is a gap in what we could read, not a finding that no study exists.

Reasons for caution that are supported by what we read:

• No known target. Harvard Health says no one knows the best number or mix of immune cells for optimum function. [4]


• Weak reference data. Researchers building normal ranges for the healthy immune system noted that earlier data had small samples, incompletely described populations and varying methods. Their own set screened 127 healthy adults for more than 50 immune subsets. [5] Ranges from a different laboratory or method may not be comparable.


• A marker is not an outcome. The FDA says a surrogate must be shown to predict clinical benefit, and candidate markers are still under evaluation. [6] See clinical validity and clinical utility.


• More markers, more false alarms. Running many tests raises the chance of an odd result with no meaning: false positives, multiple testing and incidental findings.

Questions to ask about a panel

• Who studied it, in what kind of people, and was the result published and checked by others?
• What action would change, and is that action itself backed by evidence?
• Is a clinician involved to interpret it with symptoms and history?
• Do the claims suggest it can prevent or treat infection? A test does not do that.

Where the evidence stops

Good tests exist for specific medical questions. This page does not judge any individual company's panel, only the claim that a bundled immune score has been shown to assess immune health or guide wellness choices.