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.
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
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
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 group | Role | What they receive |
|---|---|---|
| 2% CP-690,550 QD | Experimental | Not described Receives: Drug: CP-690,550 |
| 0.2% CP-690,550 QD | Experimental | Not described Receives: Drug: CP-690,550 |
| 0.02% CP-690,550 QD | Experimental | Not described Receives: Drug: CP-690,550 |
| 2% CP-690,550 BID | Experimental | Not described Receives: Drug: CP-690,550 |
| 0.2% CP-690,550 BID | Experimental | Not described Receives: Drug: CP-690,550 |
| 0.02% CP-690,550 BID | Experimental | Not described Receives: Drug: CP-690,550 |
| Placebo Vehicle QD | Placebo comparator | Not described Receives: Drug: Placebo Vehicle |
| Placebo Vehicle BID | Placebo comparator | Not described Receives: Drug: Placebo Vehicle |
What is being measured
The primary outcome is the main question the study is designed to answer.
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)
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
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
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)
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
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.
- First posted15 May 2008 (estimated)
- Study start13 Oct 2008
- Primary completion9 Jul 2009
- Study completion24 Jul 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for PsoriasisStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- 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
- 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)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
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
- Results posted
- Yes, on ClinicalTrials.gov
- 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
Study at a glance
From the registry record, last updated by the sponsor on 31 Dec 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- 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
- ClinicalTrials.gov ID
- NCT00678561
- Acronym / sponsor ID
- A3921038
- Conditions
- Psoriasis
- Keywords
- chronic plaque psoriasis, topical treatment
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 81 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 13 Oct 2008 (actual)
- Primary completion
- 9 Jul 2009 (actual)
- Study completion
- 24 Jul 2009 (actual)
- First posted
- 15 May 2008 (estimated)
- Results
- Posted 31 Dec 2020
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 8
| Arm | Type | Receives |
|---|---|---|
| 2% CP-690,550 QD | Experimental | Drug: CP-690,550 |
| 0.2% CP-690,550 QD | Experimental | Drug: CP-690,550 |
| 0.02% CP-690,550 QD | Experimental | Drug: CP-690,550 |
| 2% CP-690,550 BID | Experimental | Drug: CP-690,550 |
| 0.2% CP-690,550 BID | Experimental | Drug: CP-690,550 |
| 0.02% CP-690,550 BID | Experimental | Drug: CP-690,550 |
| Placebo Vehicle QD | Placebo comparator | Drug: Placebo Vehicle |
| Placebo Vehicle BID | Placebo comparator | Drug: Placebo Vehicle |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- 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
Key exclusion criteria (3 listed)
- Evidence of active, latent, or inadequately treated infection with Mycobacterium tuberculosis
- Pregnant or lactating women
- Unwilling to use appropriate contraceptive methods
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CP-690,550Topical treatment once daily for 28 days | Drug | 2% CP-690,550 QD |
| CP-690,550Topical treatment once daily for 28 days | Drug | 0.2% CP-690,550 QD |
| CP-690,550Topical treatment once daily for 28 days | Drug | 0.02% CP-690,550 QD |
| CP-690,550Topical treatment twice daily for 28 days | Drug | 2% CP-690,550 BID |
| CP-690,550Topical treatment twice daily for 28 days | Drug | 0.2% CP-690,550 BID |
| CP-690,550Topical treatment twice daily for 28 days | Drug | 0.02% CP-690,550 BID |
| Placebo VehicleTopical treatment once daily for 28 days | Drug | Placebo Vehicle QD |
| Placebo VehicleTopical treatment twice daily for 28 days | Drug | Placebo Vehicle BID |
Primary outcome
Percent Change From Baseline in Target Plaque Severity Score (TPSS) at Week 4
Time frame: Baseline, 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.
5 secondary outcomes
Percentage of Participants With Success Based on Physician's Global Assessment (PGA) of Target Lesions
Time frame: Week 4
Percent Change From Baseline in Target Plaque Severity Score (TPSS) at Week 1, 2 and 3
Time frame: Baseline, Week 1, 2, 3
Number of Participants With Administration Site Adverse Events
Time frame: Baseline up to 7 to 10 days after last dose of study treatment (maximum up to 38 days)
Drug Plasma Concentrations of CP-690,555
Time frame: 0 hour (pre-dose) on Day 14 and 0 hour (pre-dose), 1, 2, 9 hours post-dose on Day 28
Skin Biopsy Drug Concentrations
Time frame: Day 28
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Dec 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 26267721Ports 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.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
- Individual participant dataSharing planned: 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.
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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.
Pfizer CT.gov Call Center study director
Pfizer
20 sites in 2 countries: see every site and its status.
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; AzTrials last refreshed its copy on 6 Nov 2026.