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PsoriasisPhase 2NCT00678561

Topical CP-690,550 For Chronic Plaque Psoriasis

A Phase 2 study testing CP-690,550 in people with Psoriasis, run by Pfizer at 20 sites in 2 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

Study will test effectiveness of an experimental drug applied once or twice daily to two psoriasis plaques. Requires 1 clinic visit each week for 5 weeks. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Psoriasis
What is being tested?
CP-690,550
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
81 participants
Where
20 sitesin 2 countries
Study dates
13 Oct 2008to 24 Jul 2009
Phase
Phase 2
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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Having chronic plaque psoriasis for at least 6 months
  • Able to withdraw all prior psoriasis treatments
  • Must agree to avoid prolonged exposure to the sun and avoid use of tanning booths or other ultraviolet light sources during the study

Who cannot join

  • Evidence of active, latent, or inadequately treated infection with Mycobacterium tuberculosis
  • Pregnant or lactating women
  • Unwilling to use appropriate contraceptive methods

Trial locations and contacts

20 sites in 2 countries.

20 sites in 2 countries

United States14 sites
  • University of Michigan

    Ann Arbor, Michigan, 48109-0314

  • DermResearch, Inc.

    Austin, Texas, 78759

  • Tufts Medical Center

    Boston, Massachusetts, 02111

  • RUSH University Medical Center

    Chicago, Illinois, 60612

  • Minnesota Clinical Study Center

    Fridley, Minnesota, 55432-3134

  • Dermatology Consulting Services

    High Point, North Carolina, 27262

  • The Imaging Center

    High Point, North Carolina, 27262

  • University of California Irvine

    Irvine, California, 92697

  • Oregon Medical Research Center, PC

    Portland, Oregon, 97223

  • Oregon Health & Science University

    Portland, Oregon, 97239

  • University of Utah School of Medicine

    Salt Lake City, Utah, 84132

  • Therapeutics Clinical Research

    San Diego, California, 92123

  • Central Dermatology, PC

    St Louis, Missouri, 63117

  • Wake Forest University Health Sciences

    Winston-Salem, North Carolina, 27157

Other trials in United States

Canada6 sites
  • Innovaderm Research, Inc.

    Montreal, Quebec, H2K 4L5

  • Siena Medical Research

    Montreal, Quebec, H3Z 2S6

  • Centre de Recherche Dermatologique du Quebec metropolitain

    Québec, Quebec, G1V 4X7

  • NewLab Clinical Research Inc.

    St. John's, Newfoundland and Labrador, A1C 2H5

  • Guildford Dermatology Specialists

    Surrey, British Columbia, V3R 6A7

  • K.Papp Clinical Research Inc.

    Waterloo, Ontario, N2J 1C4

Other trials in Canada

About this study

Official title: PHASE 2A RANDOMIZED, DOUBLE-BLIND, VEHICLE-CONTROLLED, INTRA-INDIVIDUAL COMPARISON TRIAL ASSESSING SAFETY, TOLERATION, PHARMACOKINETICS AND PILOT EFFICACY OF 4 WEEKS TREATMENT WITH TOPICAL CP-690,550 IN CHRONIC PLAQUE PSORIASIS

Study will test effectiveness of an experimental drug applied once or twice daily to two psoriasis plaques. Requires 1 clinic visit each week for 5 weeks.

Conditions
Psoriasis
Being tested
CP-690,550, Placebo Vehicle
Keywords
chronic plaque psoriasis, topical treatment
Medical subject headings
Psoriasis

What participants receive

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

  • CP-690,550Drug

    Topical treatment once daily for 28 days

  • CP-690,550Drug

    Topical treatment once daily for 28 days

  • CP-690,550Drug

    Topical treatment once daily for 28 days

  • CP-690,550Drug

    Topical treatment twice daily for 28 days

  • CP-690,550Drug

    Topical treatment twice daily for 28 days

  • CP-690,550Drug

    Topical treatment twice daily for 28 days

  • Placebo VehicleDrug

    Topical treatment once daily for 28 days

  • Placebo VehicleDrug

    Topical treatment twice daily for 28 days

Study groups in NCT00678561
Study groupRoleWhat they receive
2% CP-690,550 QDExperimentalNot described
Receives: Drug: CP-690,550
0.2% CP-690,550 QDExperimentalNot described
Receives: Drug: CP-690,550
0.02% CP-690,550 QDExperimentalNot described
Receives: Drug: CP-690,550
2% CP-690,550 BIDExperimentalNot described
Receives: Drug: CP-690,550
0.2% CP-690,550 BIDExperimentalNot described
Receives: Drug: CP-690,550
0.02% CP-690,550 BIDExperimentalNot described
Receives: Drug: CP-690,550
Placebo Vehicle QDPlacebo comparatorNot described
Receives: Drug: Placebo Vehicle
Placebo Vehicle BIDPlacebo comparatorNot described
Receives: Drug: Placebo Vehicle

What is being measured

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

  1. Percent Change From Baseline in Target Plaque Severity Score (TPSS) at Week 4

    TPSS: all target lesions were scored individually by the investigator for signs of induration, scaling, and erythema. For large target lesions only a portion of the lesion was treated and only the treated portion was rated. Each of the 3 signs was rated on a 5-point severity scale: 0 = none; 1 = slight; 2 = moderate; 3 = marked; 4 = very marked. Total score range for TPSS was 0 to 12, higher score indicated greater severity of disease.

    Measured: Baseline, Week 4

Secondary outcomes (5)
  1. Percentage of Participants With Success Based on Physician's Global Assessment (PGA) of Target Lesions

    PGA of Psoriasis: The investigator scored each target lesion on a 5-point scale, reflecting the erythema, induration and scaling separately for each target lesions. Each parameter was scored from 0 to 4, with appropriate morphologic descriptors. The 5-point scale for PGA was: 0, "clear"; 1, "almost clear"; 2, "mild"; 3, "moderate"; 4 "severe". The sum of the 3 scores was divided by 3 to obtain a final PGA score. Total score range: 0 to 4, higher score indicated greater severity of disease. Success was considered as PGA response of "clear" and "almost clear".

    Measured: Week 4

  2. Percent Change From Baseline in Target Plaque Severity Score (TPSS) at Week 1, 2 and 3

    TPSS: all target lesions were scored individually by the investigator for signs of induration, scaling, and erythema. For large target lesions only a portion of the lesion was treated and only the treated portion was rated. Each of the 3 signs was rated on a 5-point scale: 0 = none; 1 = slight; 2 = moderate; 3 = marked; 4 = very marked. Total score range for TPSS was 0 to 12, higher score indicated greater severity of disease.

    Measured: Baseline, Week 1, 2, 3

  3. Number of Participants With Administration Site Adverse Events

    An adverse event was any untoward medical occurrence attributed to study drug in a participant who received study drug. Administration site adverse event included documentation of any clinically significant local reaction, such as erosion, vesicles or scabbing.

    Measured: Baseline up to 7 to 10 days after last dose of study treatment (maximum up to 38 days)

  4. Drug Plasma Concentrations of CP-690,555

    Concentrations below the limit of quantification (LOQ) were not estimable. The LOQ was 0.1 ng/mL.

    Measured: 0 hour (pre-dose) on Day 14 and 0 hour (pre-dose), 1, 2, 9 hours post-dose on Day 28

  5. Skin Biopsy Drug Concentrations

    Skin biopsy drug concentrations was measured via drug levels in dermis and expressed as nanogram of drug per milligram (mg) of dermis weight. Tissue concentration (ng/mg) = (ng drug/mL extraction solvent multiplied by mL extraction solvent) divided by mg tissue weight; 1 mL of extraction solvent was used.

    Measured: Day 28

Timeline

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

  1. First posted15 May 2008 (estimated)
  2. Study start13 Oct 2008
  3. Primary completion9 Jul 2009
  4. Study completion24 Jul 2009

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
81 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00678561
Sponsor's protocol ID
A3921038
Status last verified
Dec 2020
First submitted
13 May 2008
Last updated
31 Dec 2020
Data monitoring committee
No
Individual data sharing
Yes: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Publications

  • Ports WC, Feldman SR, Gupta P, Tan H, Johnson TR, Bissonnette R. Randomized Pilot Clinical Trial of Tofacitinib Solution for Plaque Psoriasis: Challenges of the Intra-Subject Study Design. J Drugs Dermatol. 2015 Aug;14(8):777-84.

    PubMed 26267721

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing CP-690,550 in people with Psoriasis, run by Pfizer at 20 sites in 2 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 3 inclusion and 3 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 31 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 20 sites in United States, Canada. 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. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 31 Dec 2020). 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?

Percent Change From Baseline in Target Plaque Severity Score (TPSS) at Week 4 (time frame: Baseline, Week 4). 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 NCT00678561, 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 31 Dec 2020.

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