Efficacy and Safety of Etanercept 50 mg Once Weekly Plus As Needed Topical Agent in Moderate to Severe Plaque Psoriasis (REFINE)

February 7, 2017 updated by: Amgen

A Randomized, Blinded Assessor Study to Evaluate the Efficacy and Safety of Etanercept 50 mg Once Weekly Plus As Needed Topical Agent Versus Etanercept 50 mg Twice Weekly in Subjects With Moderate to Severe Plaque Psoriasis

To estimate the difference in effectiveness between treatment with etanercept 50 mg twice weekly (BIW) and treatment with etanercept 50 mg once weekly (QW) plus an as needed (PRN) topical agent for 12 weeks in adults with moderate to severe plaque psoriasis.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The recommended starting dose of etanercept for adult plaque psoriasis patients is a 50 mg dose given twice a week (BIW) for 3 months followed by a reduction to a maintenance dose of 50 mg once weekly (QW). While most patients with moderate to severe plaque psoriasis are managed satisfactorily on etanercept monotherapy, a proportion may require a modified or alternative treatment regimen (eg, to handle flares or loss of effect) at some point during their chronic management. Despite the clinical need, no published data from randomized controlled studies are currently available that demonstrate efficacy and safety of combined etanercept-based regimens in patients with plaque psoriasis.

The addition of an as-needed topical medication to the step-down dose of etanercept 50 mg once weekly administered after the initial 12 week period of 50 mg twice weekly may be a potential option for patients who may require adjunctive therapy. This study aimed to provide data on this treatment option by estimating the difference in mean percent change in Psoriasis Area and Severity Index (PASI) scores between step-down etanercept 50 mg once weekly supplemented with as-needed topical medication and continuous treatment with etanercept 50 mg twice weekly.

Eligible patients will be enrolled in the study and will receive etanercept 50 mg twice weekly for 12 weeks. After 12 weeks of etanercept treatment, participants will be randomized in a 1:1 ratio to 1 of 2 treatment groups.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
310

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
      • Quebec, Canada, G1V 4X7
        • Research Site
      • Quebec, Canada, G1J 1X7
        • Research Site
    • Alberta
      • Calgary, Alberta, Canada, T2G 1B1
        • Research Site
    • British Columbia
      • Surrey, British Columbia, Canada, V3R 6A7
        • Research Site
      • Vancouver, British Columbia, Canada, V5Z 4E8
        • Research Site
    • Manitoba
      • Winnipeg, Manitoba, Canada, R3C 0N2
        • Research Site
    • New Brunswick
      • Moncton, New Brunswick, Canada, E1C 8X3
        • Research Site
    • Newfoundland and Labrador
      • St. John's, Newfoundland and Labrador, Canada, A1A 5E8
        • Research Site
      • St. John's, Newfoundland and Labrador, Canada, A1C 2H5
        • Research Site
    • Nova Scotia
      • Halifax, Nova Scotia, Canada, B3H 1Z4
        • Research Site
    • Ontario
      • Courtice, Ontario, Canada, L1E 3C3
        • Research Site
      • Markham, Ontario, Canada, L3P 1A8
        • Research Site
      • Mississauga, Ontario, Canada, L5H 1G9
        • Research Site
      • North Bay, Ontario, Canada, P1B 3Z7
        • Research Site
      • Peterborough, Ontario, Canada, K9J 1Z2
        • Research Site
      • Richmond Hill, Ontario, Canada, L4B 1A5
        • Research Site
      • Sudbury, Ontario, Canada, P3C 1X8
        • Research Site
      • Toronto, Ontario, Canada, M3H 5Y8
        • Research Site
      • Toronto, Ontario, Canada, M4V 1R1
        • Research Site
      • Waterloo, Ontario, Canada, N2J 1C4
        • Research Site
      • Windsor, Ontario, Canada, N8W 5L7
        • Research Site
    • Quebec
      • Montreal, Quebec, Canada, H2K 4L5
        • Research Site
      • Montreal, Quebec, Canada, H3Z 2S6
        • Research Site
      • Saint-Hyacinthe, Quebec, Canada, J2S 6L6
        • Research Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Has had stable moderate to severe plaque psoriasis for at least 6 months (eg, no morphology changes or significant flares of disease activity in the opinion of the investigator).
  • Has a body surface area (BSA) involvement ≥ 10% and Psoriasis Area and Severity Index (PASI) ≥ 10 at screening and at baseline.
  • Is a candidate for systemic therapy or phototherapy in the opinion of the investigator.
  • Other inclusion criteria may apply.

Exclusion Criteria:

  • Has active guttate, erythrodermic, or pustular psoriasis at the time of the screening visit.
  • Has evidence of skin conditions at the time of the screening visit (eg, eczema) that would interfere with evaluations of the effect of etanercept on psoriasis.
  • Diagnosed with medication-induced or medication-exacerbated psoriasis.
  • Significant concurrent medical conditions.
  • Has any active localized infection; requiring local intervention or chronic or localized infections.
  • Other exclusion criteria may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Etanercept 50 mg BIW
Following 12 weeks of etanercept 50 mg twice weekly, participants were randomized to 50 mg etanercept twice weekly for 12 weeks.
Biological: etanercept
Administered by subcutaneous injection
Other Names:
  • Enbrel
Experimental: Etanercept 50 mg QW + Topical
Following 12 weeks of etanercept 50 mg twice weekly, participants were randomized to 50 mg etanercept once weekly plus as needed topical agents.
Biological: etanercept
Administered by subcutaneous injection
Other Names:
  • Enbrel
Drug: Topical agents

Topical agents prescribed at the discretion of the Principal Investigator and were are limited to the following:

  • hydrocortisone 2.5%
  • betamethasone valerate 0.1%
  • betamethasone dipropionate 0.05%
  • clobetasol 0.05%
  • calcitriol
  • calcipotriol plus betamethsone dipropionate 0.05%

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percent Change in Psoriasis Area and Severity Index (PASI) From Week 12 to Week 24
Time Frame: Week 12 and Week 24
The Psoriasis Area and Severity Index (PASI) score is a combination of the intensity of psoriasis, assessed by the erythema (reddening), induration (plaque thickness) and desquamation (scaling) on a scale from none (0), mild (1), moderate (2), severe (3) or very severe (4), together with the percentage of the area affected, rated on a scale from 0 to 6. PASI scoring is performed at four body areas, the head, arms, trunk, and legs. The total PASI score ranges from 0 to 72. The higher the total score, the more severe the disease. Change from Week 12 to Week 24 is presented as a percentage of the Week 12 value: Week 12 value - Week 24 value / Week 12 value * 100 so that a positive change indicates improvement. Change was adjusted for treatment using a mixed model.
Week 12 and Week 24

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percent Change in PASI From Week 12 to Weeks 16 and 20
Time Frame: Week 12, Week 16 and Week 20
The Psoriasis Area and Severity Index (PASI) score is a combination of the intensity of psoriasis, assessed by the erythema (reddening), induration (plaque thickness) and desquamation (scaling) on a scale from none (0), mild (1), moderate (2), severe (3) or very severe (4), together with the percentage of the area affected, rated on a scale from 0 to 6. PASI scoring is performed at four body areas, the head, arms, trunk, and legs. The total PASI score ranges from 0 to 72. The higher the total score, the more severe the disease. Change from Week 12 presented as a percentage of the Week 12 value: Week 12 value - postbaseline value / Week 12 value * 100, so that a positive change indicates improvement. Change was adjusted for treatment using a mixed model.
Week 12, Week 16 and Week 20
Percent Change in PASI From Baseline to Weeks 12, 16, 20, and 24
Time Frame: Baseline and Weeks 12, 16, 20, and 24
The Psoriasis Area and Severity Index (PASI) score is a combination of the intensity of psoriasis, assessed by the erythema (reddening), induration (plaque thickness) and desquamation (scaling) on a scale from none (0), mild (1), moderate (2), severe (3) or very severe (4), together with the percentage of the area affected, rated on a scale from 0 to 6. PASI scoring is performed at four body areas, the head, arms, trunk, and legs. The total PASI score ranges from 0 to 72. The higher the total score, the more severe the disease. Change from Baseline is presented as a percentage of the Baseline value: Baseline value - postbaseline value / Baseline value * 100, so that a positive change indicates improvement.
Baseline and Weeks 12, 16, 20, and 24
Percentage of Participants With a PASI 50 Response
Time Frame: Baseline and Weeks 12, 16, 20 and 24
The percentage of participants with a 50% reduction (improvement) in Psoriasis Area and Severity Index (PASI) score from Baseline. PASI score is based on an assessment of erythema (reddening), induration (plaque thickness), desquamation (scaling), and the percent area affected as observed on the day of examination. The score ranges from 0 (best outcome) to 72 (worst outcome).
Baseline and Weeks 12, 16, 20 and 24
Percentage of Participants With a PASI 75 Response
Time Frame: Baseline and Weeks 12, 16, 20 and 24
The percentage of participants with a 75% reduction (improvement) in Psoriasis Area and Severity Index (PASI) score from Baseline. PASI score is based on an assessment of erythema (reddening), induration (plaque thickness), desquamation (scaling), and the percent area affected as observed on the day of examination. The score ranges from 0 (best outcome) to 72 (worst outcome).
Baseline and Weeks 12, 16, 20 and 24
Percentage of Participants With a PASI 90 Response
Time Frame: Baseline and Weeks 12, 16, 20 and 24
The percentage of participants with a 90% reduction (improvement) in Psoriasis Area and Severity Index (PASI) score from Baseline. PASI score is based on an assessment of erythema (reddening), induration (plaque thickness), desquamation (scaling), and the percent area affected as observed on the day of examination. The score ranges from 0 (best outcome) to 72 (worst outcome).
Baseline and Weeks 12, 16, 20 and 24
Percentage of Participants With a Static Physician's Global Assessment (sPGA) of Psoriasis Score of 0 (Clear) or 1 (Almost Clear)
Time Frame: Weeks 12, 16, 20, and 24
The sPGA scale is completed by the same blinded assessor performing the PASI assessments and is designed to evaluate the physician's global assessment of the participant's psoriasis based on severity of induration, scaling, and erythema. The sPGA is assessed on a scale of 0 to 5 (0 = clear, 5 = severe).
Weeks 12, 16, 20, and 24
Percent Change in the Percentage of Body Surface Area (BSA) Involvement From Week 12 to Weeks 16, 20, and 24
Time Frame: Weeks 12, 16, 20, and 24

The percentage of body surface area involved with psoriasis was measured by the same blinded assessor performing the PASI assessments. Change from Week 12 is presented as a percentage of the Week 12 value: Week 12 value - postbaseline value / Week 12 value * 100, so that a positive change indicates improvement.

Change was adjusted for treatment using a mixed model.
Weeks 12, 16, 20, and 24
Percent Change in the Percentage of Body Surface Area (BSA) Involvement From Baseline to Weeks 12, 16, 20, and 24
Time Frame: Baseline and Weeks 12, 16, 20, and 24

The percentage of body surface area involved with psoriasis was measured by the same blinded assessor performing the PASI assessments.

Change from Baseline \ is presented as a percentage of the Baseline value: Baseline value - postbaseline value / Baseline value * 100, so that a positive change indicates improvement.
Baseline and Weeks 12, 16, 20, and 24
Change From Week 12 to Week 24 in Dermatology Quality of Life Index (DQLI) Total Score
Time Frame: Week 12 and Week 24
The DLQI questionnaire asks participants to evaluate the degree that psoriasis has affected their quality of life in the last week, and includes the following parameters: symptoms and feelings, daily activities, leisure activities, work or school activities, personal relationships and treatment related feelings. Participants answer 10 questions on a scale from 0 (not at all) to 3 (very much); the range of the total score is 0 to 30. A score of 21 to 30 means an extremely large effect on the participant's life whereas 0-1 means that the disease has no effect at all. Change from Week 12 to Week 24 is calculated as: Week 12 value - Week 24 value so that a positive change indicates improvement. Change was adjusted for treatment using a mixed model.
Week 12 and Week 24
Change From Baseline to Weeks 12 and 24 in Dermatology Quality of Life Index (DQLI) Total Score
Time Frame: Baseline and Week 12 and Week 24
The DLQI questionnaire asks participants to evaluate the degree that psoriasis has affected their quality of life in the last week, and includes the following parameters: symptoms and feelings, daily activities, leisure activities, work or school activities, personal relationships and treatment related feelings. Participants answer 10 questions on a scale from 0 (not at all) to 3 (very much); the range of the total score is 0 to 30. A score of 21 to 30 means an extremely large effect on the participant's life whereas 0-1 means that the disease has no effect at all. Change from Baseline was calculated as Baseline value - postbaseline value so that a positive change indicates improvement.
Baseline and Week 12 and Week 24
Change in Treatment Satisfaction Questionnaire for Medications (TSQM) Scores From Week 12 to Week 24
Time Frame: Week 12 and Week 24
TSQM is a validated questionnaire consisting of 14 questions regarding a participant's perception of the level of satisfaction or dissatisfaction with the medication they are taking. Four scales are generated: side effects, effectiveness, convenience, and global satisfaction. Optional responses are: Extremely Dissatisfied, Very Dissatisfied, Dissatisfied, Somewhat Satisfied, Satisfied, Very Satisfied, and Extremely Satisfied. From the responses, a scale score from 0 - 100 is calculated, with a higher score indicating greater satisfaction. Change was calculated as Week 24 - Week 12 so that a positive change indicates improvement over time. Change was adjusted for treatment using a mixed model.
Week 12 and Week 24
Change in Treatment Satisfaction Questionnaire for Medications (TSQM) Scores From Baseline to Weeks 12 and 24
Time Frame: Baseline and Weeks 12 and 24
The TSQM is a validated questionnaire consisting of 14 questions regarding a participant's perception of the level of satisfaction or dissatisfaction with the medication they are taking. Four scales are generated: side effects, effectiveness, convenience, and global satisfaction. Optional responses are: Extremely Dissatisfied, Very Dissatisfied, Dissatisfied, Somewhat Satisfied, Satisfied, Very Satisfied, and Extremely Satisfied. From the responses, a scale score from 0 - 100 is calculated, with a higher score indicating greater satisfaction. Change was calculated as postbaseline value - Baseline value so that a positive change indicates improvement.
Baseline and Weeks 12 and 24
Health Resource Utilization: Number of Participants With Visits to a Healthcare Provider
Time Frame: Baseline and 24 weeks
Participants completed a questionnaire to assess their health resource utilization (HRU) related to psoriasis. To assess the number of visits to a healthcare provider, participants answered the following questions regarding the past 4 weeks: How many times have you been to any physician's office or urgent care clinic? How many times have you seen a nurse practitioner, a physician assistant, a psychologist, a naturopath, an acupuncturist, a chiropractor, or other healthcare professional (HCP)? The number of participants with one or more visits is reported.
Baseline and 24 weeks
Health Resource Utilization: Number of Participants With Home Healthcare Visits
Time Frame: Baseline and 24 weeks
Participants completed a questionnaire to assess their health resource utilization (HRU) related to psoriasis. To assess the number of homecare visits, participants answered the following question regarding the past 4 weeks: How many times have you received care from a health professional in your home? The number of participants with one or more visits is reported.
Baseline and 24 weeks
Health Resource Utilization: Number of Participants Requiring Paid Help With Chores
Time Frame: Baseline and 24 weeks
Participants completed a questionnaire to assess their health resource utilization (HRU) related to psoriasis. To assess the number of participants who needed paid help with chores, participants answered the following question regarding the past 4 weeks: How many times have you paid someone to help you do chores around the house (cleaning, maintenance, lawn care)? The number of participants who paid for help one or more times is reported.
Baseline and 24 weeks
Health Resource Utilization: Number of Participants Who Needed Friend or Family Care
Time Frame: Baseline and 24 weeks
Participants completed a questionnaire to assess their health resource utilization (HRU) related to psoriasis. Participants answered the following question regarding the past 4 weeks: How many hours have you had a friend or family member take time off work to provide care or transportation? The number of participants who had paid or non-paid help for one or more hours is reported.
Baseline and 24 weeks
Health Resource Utilization: Out of Pocket Expenses
Time Frame: Baseline and 24 weeks
Participants completed a questionnaire to assess their health resource utilization (HRU) related to psoriasis. To assess out of pocket expenses, participants answered the following question regarding the past 4 weeks: Not counting study mandated visits, what out-of-pocket expenses did you spend for the management of psoriasis (i.e. costs due to travelling to doctor appointment, hospital or clinic parking costs, alternative medications)?
Baseline and 24 weeks
Health Resource Utilization: Employment Status
Time Frame: Baseline and 24 weeks
Participants completed a questionnaire to assess their health resource utilization (HRU) related to psoriasis. Participants were asked their employment status at Baseline and at Week 24.
Baseline and 24 weeks
Health Resource Utilization: Productivity While Working
Time Frame: Baseline and 24 weeks
Participants who were employed were asked: How much did your psoriasis affect your productivity while you were working? Possible responses were: a) A great deal; b) Quite a bit; c) Somewhat; d) Minimally; e) Not at all.
Baseline and 24 weeks
Health Resource Utilization: Number of Participants With Missed Hours From Work
Time Frame: Baseline and 24 weeks
Participants who were employed answered the following question regarding the past 4 weeks: How many hours per week did you miss from work because of your psoriasis? The number of participants with one or more missed hours of work per week is reported.
Baseline and 24 weeks
Health Resource Utilization: Ability to Perform Daily Activities
Time Frame: Baseline and 24 weeks
Participants were asked: How much did your psoriasis affect your ability to do your daily activities or household chores? Possible answers were: a) A great deal; b) Quite a bit; c) Somewhat; d) Minimally; e) Not at all.
Baseline and 24 weeks
Number of Participants With Adverse Events
Time Frame: 32 weeks
An adverse event (AE) is defined as any untoward medical occurrence in a clinical trial participant. A serious adverse event is defined as an adverse event that meets at least 1 of the following serious criteria: • fatal, • life threatening, • requires in-patient hospitalization or prolongation of existing hospitalization, • results in persistent or significant disability/incapacity, • congenital anomaly/birth defect, and/or • other significant medical hazard.
32 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Amgen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 24, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 10, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 11, 2011

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 15, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 7, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2017

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Terms related to this study

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Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 20090647

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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