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PsoriasisPhase 4PREPARENCT01147874

Prevalence of Psoriatic Arthritis in Adults With Psoriasis: An Estimate From Dermatology Practice

A Phase 4 study testing lab draws and imaging in people with Psoriasis and Psoriatic Arthritis, run by Pfizer at 45 sites in 7 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a phase 4, multicenter, randomized, non-therapeutic interventional trial in subjects with psoriasis looking for the prevalence of psoriatic arthritis. Subjects will be seen and evaluated by a dermatologist at visit 1 and by a rheumatologist at visit 2. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Psoriasis, Psoriatic Arthritis
What is being tested?
lab draws and imaging
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,013 participants
Where
45 sitesin 7 countries
Study dates
Aug 2010to Jul 2011
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject is >18 years of age at the time of consent.
  • Subject has a confirmed diagnosis of plaque psoriasis by clinical judgment.
  • Subject is able to read and complete questionnaires.
  • Subjects planning to undergo radiographic evaluation, should not have any contraindications to MRI.

Who cannot join

  • None.

Trial locations and contacts

45 sites in 7 countries.

45 sites in 7 countries

Canada20 sites
  • Kirk Barber Research

    Calgary, Alberta, T2S 3B3

  • Stratica Medical

    Edmonton, Alberta, T5K 1X3

  • Rheumatology Research Associates

    Edmonton, Alberta, T5M 0H4

  • Dermatrials Research

    Hamilton, Ontario, L8N 1V6

  • MAC Research Ind.

    Hamilton, Ontario, L8N 2B6

  • K-W Musculoskeletal Research Inc.

    Kitchener, Ontario, N2M 5N6

  • Lynderm Research Inc

    Markham, Ontario, L3P 1A8

  • Innovaderm Research Inc

    Montreal, Quebec, H2K 4L5

  • Institut de Rheumatologie de Montreal

    Montreal, Quebec, H2L 1S6

  • GRMO Inc.

    Québec, Quebec, G1V 3M7

  • Centre de Recherche Dermatologique du Quebec metropolitain

    Québec, Quebec, G1V 4X7

  • Diex Research Inc.

    Sherbrooke, Quebec, J1H 1Z1

  • Clinique Medicale Belvedere

    Sherbrooke, Quebec, J1K 1K6

  • Nexus Clinical Research

    St. John's, Newfoundland and Labrador, A1A 5E8

  • The Toronto Western Hospital-Division of Rheumatology

    Toronto, Ontario, M5T 2S8

  • The Skin Care Centre-Clinical Trials Unit

    Vancouver, British Columbia, V5Z 4E8

  • K.Papp Clinical Research Inc.

    Waterloo, Ontario, N2J 1C4

  • Windsor Clinical Research

    Windsor, Ontario, N8W 5L7

  • Medical Office

    Windsor, Ontario, N8X 4T2

  • Winnipeg Clinic

    Winnipeg, Manitoba, R3C 0N2

Other trials in Canada

United States6 sites
  • Modern Research Assoc. PLLC

    Dallas, Texas, 75205

  • Rheumatology Practive of Scott Zashin, MD

    Dallas, Texas, 75231

  • Center for Clinical Studies Ltd LLP

    Houston, Texas, 77030

  • Rheumatology Associates of Houston

    Houston, Texas, 77054

  • Dermatology Associates

    Seattle, Washington, 98101

  • Center for Clinical Studies LTD LLP

    Webster, Texas, 77598

Other trials in United States

Germany6 sites
  • Klinik fuer Dermatologie, Allergologie und Venerologie

    Berlin, 10117

  • Universitaetsklinikum Erlangen Hautklinik im Internistischen Zentrum

    Erlangen, 91054

  • Klinikum der Johann Wolfgang Goethe Universitaet

    Frankfurt am Main, 60590

  • Klinik und Poliklinik fuer Dermatologie und

    München, 80802

  • Praxis Dres. Bredlich, Rosenbach und Thiele

    Osnabrück, 49078

  • Klinik und Poliklinik fuer Dermatologie

    Regensburg, 93042

Other trials in Germany

Hungary5 sites
  • Synexus Magyarorszag Kft.

    Budapest, 1036

  • Debreceni Egyetem Orvos-és Egészségtudományi Centrum

    Debrecen, 4012

  • Borsod Abauj Zemplen Megyei Korhaz es Egyetemi Oktato Korhaz, Szent Ferenc Korhaz Telephely

    Miskolc, 3529

  • Miskolci Semmelweis Ignac Egeszsegugyi Kozpont es Egyetemi Oktatokorhaz Nonprofit Kft/Borgyogyaszat

    Miskolc, 3529

  • Borgyogyaszati es Allergologiai

    Szolnok, 5000

Other trials in Hungary

Denmark3 sites
  • Hudlaegerne

    Arhus C, 8000

  • Bispebjerg University Hospital

    Copenhagen NV, DK-2400

  • Gentofte Hospital

    Hellerup, 2900

Other trials in Denmark

France3 sites
  • CHU de l Archet

    Nice, 06202

  • Hopital Saint Louis

    Paris, 75475

  • Hôpital Larrey

    Toulouse, 31059

Other trials in France

Belgium2 sites
  • Algemeen Ziekenhuis St. Jan

    Bruges, 8000

  • Universitair Ziekenhuis Gent

    Ghent, Belgium, 9000

Other trials in Belgium

About this study

This is a phase 4, multicenter, randomized, non-therapeutic interventional trial in subjects with psoriasis looking for the prevalence of psoriatic arthritis. Subjects will be seen and evaluated by a dermatologist at visit 1 and by a rheumatologist at visit 2. A subset of subjects will then go on to visit 3 for imaging procedures (x-ray, MRI, and ultrasound).

Being tested
lab draws and imaging
Keywords
non-therapeutic, interventional
Medical subject headings
Psoriasis, Arthritis, Psoriatic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • lab draws and imagingProcedure or surgery

    1 set of lab draws, imaging consists of radiographic imaging or X-ray, ultrasound and MRI

Study groups in NCT01147874
Study groupRoleWhat they receive
psoriatic arthritis (PsA) questionnaireNo interventionNot described
Receives: Procedure: lab draws and imaging

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Psoriatic Arthritis (PsA) Based on Physical Examination, Medical History and Laboratory Results

    PsA: inflammatory arthritis associated with psoriasis that can have an indolent and progressive course. Percentage of participants with PsA was calculated by dividing the number of participants who were classified as positive by the rheumatologist and the total number of participants evaluated using medical history, physical examination and laboratory results as the basis for the diagnosis.

    Measured: Week 0 through Week 8

Secondary outcomes (2)
  1. Percentage of Participants With Psoriatic Arthritis (PsA) Based on Physical Examination and Medical History

    PsA: inflammatory arthritis associated with psoriasis that can have an indolent and progressive course. Percentage of participants with PsA was calculated by dividing the number of participants who were classified as positive by the rheumatologist and the total number of participants evaluated using medical history and physical examination as the basis for the diagnosis.

    Measured: Week 0 through Week 8

  2. Percentage of Participants With Undiagnosed Psoriatic Arthritis (PsA)

    PsA: inflammatory arthritis associated with psoriasis that can have an indolent and progressive course. Primary PsA diagnosis made by rheumatologist based on physical examination, medical history and laboratory test results. Secondary PsA diagnosis made by rheumatologist based on physical examination and medical history only. For both, numerator was number of participants with "No" answer to question concerning previous diagnosis of PsA at Visit 1 (dermatology visit) and were subsequently classified as positive by rheumatologist; denominator was total number of participants evaluated for PsA.

    Measured: Week 0 through Week 8

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Jun 2010 (estimated)
  2. Study startAug 2010
  3. Primary completionJul 2011
  4. Study completionJul 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
1,013 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01147874
Sponsor's protocol ID
0881A6-4728
Other IDs
B1801032
Acronym
PREPARE
Status last verified
Apr 2012
First submitted
17 Jun 2010
Last updated
21 Jun 2012
Data monitoring committee
No

Publications

  • Mease PJ, Gladman DD, Papp KA, Khraishi MM, Thaci D, Behrens F, Northington R, Fuiman J, Bananis E, Boggs R, Alvarez D. Prevalence of rheumatologist-diagnosed psoriatic arthritis in patients with psoriasis in European/North American dermatology clinics. J Am Acad Dermatol. 2013 Nov;69(5):729-735. doi: 10.1016/j.jaad.2013.07.023. Epub 2013 Aug 24.

    PubMed 23981683

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing lab draws and imaging in people with Psoriasis and Psoriatic Arthritis, run by Pfizer at 45 sites in 7 countries.

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 4 inclusion and 1 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: finished, as of the sponsor's last update on 21 Jun 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 45 sites in Canada, United States, Germany, Hungary, Denmark and 2 more countries. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 21 Jun 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With Psoriatic Arthritis (PsA) Based on Physical Examination, Medical History and Laboratory Results (time frame: Week 0 through Week 8). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01147874, which also lists 1 linked publication.

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 21 Jun 2012.

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