PsoriasisNCT01744327
TL1A Expression in Psoriatic Skin
An observational study of Psoriasis, run by Bispebjerg Hospital at 1 site in Denmark.
Trial summary
TL1A is a newly discovered signal molecule that may be crucially involved in the maintenance of chronic inflammatory disorders. TL1A has also been demonstrated in psoriatic skin but the importance of TL1A in psoriasis is still unknown. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Psoriasis
- How many people
- 20 participants
- Where
- 1 siteDenmark
- Study dates
- Dec 2012to Dec 2013
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: Plaque type psoriasis
Who may be able to join
- Plaque type psoriasis
- at least 6 month history of psoriasis
Who cannot join
- systemic anti-psoriatic medication
- topical anti-psoriatic medication (wash-out period 2 weeks)
Trial locations and contacts
1 site in 1 country.
Denmark1 site
Department of dermatology D40 , Bispebjerg Hospital
Copenhagen, 2400 NV
About this study
Official title: An Exploratory Study Investigating TL1A Expression in Psoriatic Skin and Serum and Monocytes Capacity to Produce TL1A
TL1A is a newly discovered signal molecule that may be crucially involved in the maintenance of chronic inflammatory disorders. TL1A has also been demonstrated in psoriatic skin but the importance of TL1A in psoriasis is still unknown. Understanding inflammatory signal molecules in psoriasis is important because the development of new drugs directed against relevant signal molecules (e.g. TNF-α and IL12/23) has proved to be a very efficacious treatment principle. However, despite the dramatic progress in therapeutic options during the last decade, there is still a fraction of patients that are insufficiently treated with the currently available therapies. TL1A has been claimed to be the next important target for development of biologics in the field of chronic inflammation.
Read the detailed description
Psoriasis is a common autoimmune disease; affecting approximately 2 % of the western population. Among these 15% are estimated to have severe disease that requires systemic therapy with e.g. methotrexate, cyclosporine or acitretin that are all drugs associated with high frequencies of side-effects. In contrast to this the recent development of the biologic drugs has provided very efficacious and in general well-tolerated new therapeutics. But even with these newer drugs treatment-failures exist and for this group new treatments are needed TNF-like ligand 1A (TL1A) is a novel member of the TNF family of cytokines. Increasing evidence suggests that in addition to TNF-alfa and IFN-gamma psoriasis is also an IL-23 and IL-17 dependent disease so TH1 and TH17 T cells are suggested to be important in driving the disease. Therefore TL1A, which through binding to DR3 influences TH1 and TH17 T cell differentiation, could be an important cytokine in the early inflammatory process in psoriasis. Recently expression of TL1A in psoriatic skin lesions has been demonstrated but the importance of this remains to be investigated.
TL1A exists in both a membrane bound- and a soluble form and is secreted from antigen presenting cells (APCs) such as monocytes, dendritic cells and macrophages in response to stimulation with immune complexes, bacteria or cytokines (TNF-alfa and IL-1beta). Membrane bound TL1A has also been described in T cells. Recently, a new isoform of soluble TL1A (TL1A(V84-L251)) was discovered with functional differences to TL1A(L72-L251. It's unknown whether this isoform is present in psoriatic skin.
Research on TL1A has focused on autoimmune diseases where immune complexes are formed, e.g. rheumatoid arthritis. However, studies have suggested that early pathogenesis in psoriasis could dependent on formation of large complexes between bacterial DNA and the anti-microbial peptide LL-37 which induce cytokine secretion from APC. Cytokines that could lead to TL1A excretion. Whether TL1A can be secreted in this way is unknown.
- Conditions
- Psoriasis
- Medical subject headings
- Psoriasis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Chronic Plaque type psoriasis | Patients with plaque type psoriasis |
What is being measured
The primary outcome is the main question the study is designed to answer.
Expression of TL1A in psoriatic skin
Staining intensity of TL1A by IHC in involved psoriatic skin compared to uninvolved and skin from normal controls
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Dec 2012 (estimated)
- Study startDec 2012
- Primary completionDec 2013 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for PsoriasisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 20 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Bispebjerg Hospital
- Sponsor type
- University, hospital or other
- Collaborators
- AbbVie, University of Copenhagen
- Responsible party
- Principal investigator, Bo Bang, MD, Ph.D, Bispebjerg Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01744327
- Sponsor's protocol ID
- 331536
- Status last verified
- May 2013
- First submitted
- 5 Dec 2012
- Last updated
- 29 May 2013
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 May 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Exploratory Study Investigating TL1A Expression in Psoriatic Skin and Serum and Monocytes Capacity to Produce TL1A
- ClinicalTrials.gov ID
- NCT01744327
- Acronym / sponsor ID
- 331536
- Conditions
- Psoriasis
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 20 participants (estimated)
- Lead sponsor
- Bispebjerg HospitalUniversity, hospital or other
- Collaborators
- AbbVie, University of Copenhagen
- Study start
- Dec 2012
- Primary completion
- Dec 2013 (estimated)
- First posted
- 6 Dec 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
TL1A is a newly discovered signal molecule that may be crucially involved in the maintenance of chronic inflammatory disorders. TL1A has also been demonstrated in psoriatic skin but the importance of TL1A in psoriasis is still unknown. Understanding inflammatory signal molecules in psoriasis is important because the development of new drugs directed against relevant signal molecules (e.g. TNF-α and IL12/23) has proved to be a very efficacious treatment principle. However, despite the dramatic progress in therapeutic options during the last decade, there is still a fraction of patients that are insufficiently treated with the currently available therapies. TL1A has been claimed to be the next important target for development of biologics in the field of chronic inflammation.
Detailed description
Psoriasis is a common autoimmune disease; affecting approximately 2 % of the western population. Among these 15% are estimated to have severe disease that requires systemic therapy with e.g. methotrexate, cyclosporine or acitretin that are all drugs associated with high frequencies of side-effects. In contrast to this the recent development of the biologic drugs has provided very efficacious and in general well-tolerated new therapeutics. But even with these newer drugs treatment-failures exist and for this group new treatments are needed TNF-like ligand 1A (TL1A) is a novel member of the TNF family of cytokines. Increasing evidence suggests that in addition to TNF-alfa and IFN-gamma psoriasis is also an IL-23 and IL-17 dependent disease so TH1 and TH17 T cells are suggested to be important in driving the disease. Therefore TL1A, which through binding to DR3 influences TH1 and TH17 T cell differentiation, could be an important cytokine in the early inflammatory process in psoriasis. Recently expression of TL1A in psoriatic skin lesions has been demonstrated but the importance of this remains to be investigated.
TL1A exists in both a membrane bound- and a soluble form and is secreted from antigen presenting cells (APCs) such as monocytes, dendritic cells and macrophages in response to stimulation with immune complexes, bacteria or cytokines (TNF-alfa and IL-1beta). Membrane bound TL1A has also been described in T cells. Recently, a new isoform of soluble TL1A (TL1A(V84-L251)) was discovered with functional differences to TL1A(L72-L251. It's unknown whether this isoform is present in psoriatic skin.
Research on TL1A has focused on autoimmune diseases where immune complexes are formed, e.g. rheumatoid arthritis. However, studies have suggested that early pathogenesis in psoriasis could dependent on formation of large complexes between bacterial DNA and the anti-microbial peptide LL-37 which induce cytokine secretion from APC. Cytokines that could lead to TL1A excretion. Whether TL1A can be secreted in this way is unknown.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Chronic Plaque type psoriasis | – | –Patients with plaque type psoriasis |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Plaque type psoriasis
Key inclusion criteria (2 listed)
- Plaque type psoriasis
- at least 6 month history of psoriasis
Key exclusion criteria (2 listed)
- systemic anti-psoriatic medication
- topical anti-psoriatic medication (wash-out period 2 weeks)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Expression of TL1A in psoriatic skin
Time frame: 3 months
Staining intensity of TL1A by IHC in involved psoriatic skin compared to uninvolved and skin from normal controls
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 May 2013.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Psoriasis, run by Bispebjerg Hospital at 1 site in Denmark.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 29 May 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Expression of TL1A in psoriatic skin (time frame: 3 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 May 2013.