Abatacept Bone Effects in Psoriatic Arthritis With Bone Biomarker

  • days left to enroll
  • participants needed
  • sponsor
    University of Erlangen-Nürnberg Medical School
Updated on 24 January 2021


Observation has pointed out, that osteitis present in the MRI scans, predicts bone erosion and that this in accordance with the concept by underlining the importance of bone marrow involvement in arthritis [Krabben A, 2013]. Abatacept with its favourable safety profile preferentially interrupts activation of nave T cells and perhaps makes the strongest case for exploiting co-stimulatory blockade during the earliest detectable phase of the adaptive immune response at a time when predisposition to autoimmune disease can be detected.


Psoriatic arthritis (PsA) is a chronic inflammatory arthritis that occurs in individuals with psoriasis. It is estimated that 1% to 3% of the general population have psoriasis.1,2,3 In Europe the prevalence of psoriasis ranges up to 6.5%.4 Between 10% and 30% of subjects with Psoriasis develop arthritis. As a result, PsA is the second most common inflammatory arthropathy, following rheumatoid arthritis (RA). 1,2,3 Psoriatic arthritis, a seronegative spondyloarthropathy, is a complex disease involving peripheral and axial joints and periarticular structures resulting in enthesitis and dactylitis. Without appropriate management, the number of joints affected by PsA and the severity of joint damage increase over time, which can lead to marked restriction of daily activities and to substantially compromised quality of life. There is evidence that active PsA is associated with accelerated atherosclerosis, obesity, metabolic syndrome and cardiovascular disease. Other co-morbidities such as pulmonary fibrosis, uveitis, and, less commonly, aortic insufficiency, also contribute to the complexity of PsA.5 Unlike RA, effective treatment options are limited for PsA. Responses to the traditional disease-modifying anti-rheumatic drugs (DMARDs) have been suboptimal.6 There is a significant unmet medical need for more effective and safe therapies in PsA, especially for reducing the arthritic signs and symptoms as well as inhibiting progression of structural damage in joints. About 20% of subjects with PsA will develop a severe destructive disabling form of arthritis.7 In the absence of definitive therapy, more than 50% of subjects with PsA will develop 5 or more deformed joints within 10 years of the onset of disease.8 TNFi therapies are efficacious for both skin and joint diseases and have been shown to inhibit structural damage, but approximately 40% of subjects treated with TNFi agents do not reach a minimal improvement [American College of Rheumatology [ACR) 20]9,10,11,12.13,14,15,16,17 In addition, serious adverse events (SAEs) including infections and injection site reactions have been associated with the use of TNFi therapies. Although in some studies a small percentage of patients previously exposed to TNFi were included, these studies were not powered to demonstrate efficacy in that sub-population. Thus, in subjects who experience inefficacy or intolerance of TNF blockade, there is still medical need for new options. Therefore, there is still need in PsA for therapies that provide significant improvement in arthritis and a risk benefit profile that is acceptable. Therapies directed at novel targets (IL-12/23, PDE4-Antagonist) are also approved since 2014. 18, 19, 20, 21 Joint involvement, is clearly the most prominent example for the systemic nature of psoriasis. Notably, the burden of joint disease in patients with psoriasis may be even higher, given that not all psoriasis patients experiencing musculoskeletal complaints fulfill the classification criteria of PsA22. If present, PsA is a severe disease associated with impaired function and reduced life quality life.

Condition Evaluate Bone Changes in Patients With PsA
Treatment Abatacept 125 MG/ML
Clinical Study IdentifierNCT04106804
SponsorUniversity of Erlangen-Nürnberg Medical School
Last Modified on24 January 2021


Yes No Not Sure

Inclusion Criteria

Males/females with CASPAR criteria-positive PsA
Active disease with more than three swollen and tender joints
Must be aged 18 years at time of consent
erosions on MRI or HR PQCT
Women of childbearing potential or men capable of fathering children must be using effective contraception during treatment with abatacept and up to 14 weeks after the last dose of abatacept treatment
Must understand and voluntarily sign an informed consent form including written consent for data protection - Must be able to adhere to the study visit schedule and other protocol requirements

Exclusion Criteria

Previous exposure to abatacept
CCP2 positivity
Investigational study drug within 4 weeks (or 5 halflives (half live is 14,3 days), whichever is longer) prior to randomisation
Any condition, including the presence of laboratory abnormalities, which places the subject at unacceptable risk if he/she were to participate in the study or confounds the ability to interpret data from the study
Any other autoimmune or inflammatory disease such as SLE, PSS, MCTD, SpA, Behcet disease, vasculitis or autoimmune hepatitis
Any malignancy in the last 5 years
Chronic infection such as latent TB (TB not adequately treated according to guidelines) or hepatitis B or C infection
Immunocompromised or HIV-positive patients
Uncontrolled severe concomitant disease
Patients who are younger than 18 years or are incapable to understand the aim, importance and consequences of the study and to give legal informed consent (according to 40 Abs. 4 and 41 Abs. 2 and Abs. 3 AMG)
Pregnant or lactating females
Patients who possibly are dependent on the Principal Investigator or
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact



Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note