What is an anti-CCP test?
The Anti-CCP test, short for Anti-Cyclic Citrullinated Peptide Antibodies Test, is also known as the citrulline antibody, CCP antibody, or anti-citrulline antibody test. It’s commonly used to measure the levels of specific antibodies called anti-cyclic citrullinated peptide antibodies (ACPAs). These antibodies are found in approximately 60% to 70% of people who have rheumatoid arthritis (RA).
These autoantibodies, which target the body’s cyclic citrullinated peptide, are an example of an immune reaction gone wrong. The development of RA is connected to this immunological response.
Please note that while the information provided is generally accurate, the percentages of people with ACPAs in RA can vary, and it’s essential to consult a healthcare professional for a comprehensive understanding of test results and their implications.
What is an anti-CCP test used for?
The anti-CCP (anti-cyclic citrullinated peptide) test is valuable in the early detection of rheumatoid arthritis (RA) even before clinical symptoms appear. Identifying RA at this stage is crucial for early intervention and preventing extensive joint damage. This test aids in both diagnosing the disease and assessing its severity, helping healthcare professionals provide timely and appropriate care.
Understanding the test results of Anti CCP (ACCP) Test - normal and high values
Citrullination is a normal physiological process that occurs in the body, particularly in dying cells. The levels of citrulline produced can vary based on a person’s genetics. In the Anti-CCP test, the results are measured in EU/ml (enzyme units per milliliter).
Anti-CCP Test Result (EU/ml) |
Interpretation |
Less than 20 |
Negative (Normal) |
20-39 |
Weakly Positive |
40-59 |
Moderately Positive |
More than 60 |
Strongly Positive |
A positive result in an asymptomatic individual may suggest an increased risk of developing rheumatoid arthritis (RA) in the future. Conversely, a high positive result in a patient with RA may indicate a higher risk of developing a more severe, erosive form of the condition. However, it’s important to note that an ACCP test alone is not a definitive diagnostic tool, and clinical evaluation by a healthcare provider is essential for accurate assessment and diagnosis.