A Study to Evaluate the Safety and Effectiveness of Doxercalciferol Capsules in Participants With Moderate to Severe Psoriasis

April 2, 2014 updated by: Genzyme, a Sanofi Company

A Multicenter, Double-Blind, Placebo-Controlled, Dose-Ranging Study to Assess the Efficacy and Safety of Doxercalciferol Capsules in the Treatment of Subjects With Moderate to Severe Chronic Plaque Psoriasis

The purpose of this study was to evaluate the safety and effectiveness of an investigational drug called doxercalciferol in participants with moderate to severe chronic plaque psoriasis, in comparison with a placebo ("sugar pill"). All study related care was provided including doctor visits, physical exams, laboratory tests and study medication. Total length of participation was 28 weeks.

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

This was a multicenter, randomized, double-blind, placebo-controlled, dose-ranging, parallel group study to evaluate the efficacy and safety of doxercalciferol given orally, once daily for 24 weeks to participants with moderate to severe chronic plaque psoriasis. Participants were randomized and stratified by site and Psoriasis Area Severity Index (PASI) score to one of three active treatment groups or to the placebo group.

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.
111

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 2

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

  • United States
    • Alabama
      • Birmingham, Alabama, United States
    • Arizona
      • Hot Springs, Arizona, United States
    • Arkansas
      • Little Rock, Arkansas, United States
    • California
      • Irvine, California, United States
      • Santa Monica, California, United States
    • Georgia
      • Alpharetta, Georgia, United States
    • Indiana
      • Indianapolis, Indiana, United States
    • Massachusetts
      • Andover, Massachusetts, United States
      • Boston, Massachusetts, United States
    • Michigan
      • Troy, Michigan, United States
      • West Bloomfield, Michigan, United States
    • Missouri
      • St. Louis, Missouri, United States
    • New Jersey
      • East Windsor, New Jersey, United States
    • New Mexico
      • Albuquerque, New Mexico, United States
    • New York
      • Stony Brook, New York, United States
    • South Carolina
      • Greer, South Carolina, United States
    • Tennessee
      • Nashville, Tennessee, United States
    • Texas
      • San Antonio, Texas, United States
    • Utah
      • Salt Lake City, Utah, United States

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:

  • Participant had moderate to severe chronic plaque psoriasis defined by a body surface area (BSA) involvement greater than or equal to (>=) 10 percent (%) and plaques with at least a slight elevation above the surrounding normal skin at the Day 1 visit
  • Participant had a static Physician's Global Assessment (PGA) of moderate or severe at the Day 1 visit
  • Participant had a minimum PASI score of 10 at the Day 1 visit
  • Participant was a candidate to receive systemic psoriasis therapy in the opinion of the Investigator
  • Participant of childbearing potential, was willing to use an effective contraceptive method throughout the study, which included barrier methods, hormones, or intrauterine devices

Exclusion Criteria:

  • Used vitamin D analogues, multivitamin supplements containing greater than (>) 400 international unit (IU) vitamin D, topical retinoids, topical pimecrolimus, and topical tacrolimus within 14 days prior to the Day 1 visit
  • Used drugs known to influence serum calcium (such as lithium, digoxin, thiazide diuretics, teriparatide, bisphosphonates, and calcitonin) and multivitamin supplements containing calcium and/or calcium-containing antacids exceeding a total of 1 gram/day within 14 days prior to the Day 1 visit
  • Used keratolytics or coal tar (except shampoo containing coal tar or salicylic acid) within 14 days prior to the Day 1 visit
  • Used low potency topical corticosteroids (Classes VI and VII), except on the groin, scalp, palms, soles and face, within 14 days prior to the Day 1 visit
  • Used medium potency topical corticosteroids (Classes III - V) or high potency topical corticosteroids (Classes I and II) within 14 days prior to the Day 1 visit
  • Used systemic retinoids, systemic corticosteroids, methotrexate, cyclosporine, azathioprine, thioguanine or other systemic immunosuppressant agents within 28 days prior to the Day 1 visit
  • Used phototherapy, including Ultraviolet B within 14 days or Psoralen plus Ultraviolet A within 28 days prior to the Day 1 visit
  • Used a biological agent (including, but not limited to, etanercept, adalimumab, efalizumab, infliximab, or alefacept) within 5 half-lives of the drug prior to the Day 1 visit
  • Used systemic antibiotics within 14 days prior to the Day 1 visit. Antibiotic treatment of infections during the Treatment Period was not excluded
  • Used investigational drugs within 28 days prior to the Day 1 visit
  • Current erythrodermic, guttate, generalized pustular, unstable psoriasis or other chronic active skin conditions that may interfere with the study
  • Screening visit laboratory result exceeded the following limits: alanine transaminase (ALT) or aspartate transaminase (AST) >1.5 times the upper limit of normal (ULN); bilirubin >ULN; serum creatinine, calcium, or phosphorus >ULN; spot urine calcium/creatinine ratio >0.4
  • History of nephrolithiasis
  • Chronic kidney disease as evidenced by a calculated glomerular filtration rate (GFR) less than (<) 60 milliliter/minute/1.73 square meter (mL/min/1.73 m^2) at the screening visit
  • Symptomatic coronary or cerebral vascular disease, human immunodeficiency virus, active viral hepatitis, or any other clinically significant, unstable medical condition that would interfere with the completion of the study
  • Clinically significant electrocardiogram (EKG) abnormality at screening
  • Any evidence of active malignancy except for basal cell carcinoma of the skin. A history of malignancy was not an exclusion
  • Active ethanol or drug abuse, excluding tobacco use
  • Active severe psychiatric illness that could interfere with the conduct of the study
  • Pregnant or breast-feeding women
  • Known allergy or hypersensitivity to vitamin D or other ingredients in the study drug formulation

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
  • Masking: QUADRUPLE

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.
EXPERIMENTAL: Doxercalciferol 2.5 mcg/day
Doxercalciferol 2.5 microgram (mcg) capsule orally once daily up to Week 24.
Drug: Doxercalciferol
Other Names:
  • Hectorol®
EXPERIMENTAL: Doxercalciferol 5 mcg/day
Doxercalciferol 5 mcg capsules orally once daily up to Week 24.
Drug: Doxercalciferol
Other Names:
  • Hectorol®
EXPERIMENTAL: Doxercalciferol 7.5 mcg/day
Doxercalciferol 7.5 mcg capsules orally once daily up to Week 24.
Drug: Doxercalciferol
Other Names:
  • Hectorol®
PLACEBO_COMPARATOR: Placebo
Placebo matching to doxercalciferol capsules orally once daily up to Week 24.
Drug: Placebo

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
Percentage of Participants With at Least 50 Percent (%) Reduction in Psoriasis Area Severity Index (PASI) Score at Week 12 or Early Termination
Time Frame: Week 12 or Early Termination
PASI score: range: 0 (no disease) to 72 (maximal disease). Body was divided into head (h), trunk (t), upper (u) and lower (l) extremities. For each section, percent area of skin involved (A) was estimated: 1 (<10%) to 6 (90% - 100%), and severity was estimated by clinical signs: (erythema [E], induration [I], and desquamation [D]) on a scale: 0=no symptoms, 4=very marked. PASI score= 0.1 (E[h] + I[h] + D[h]) A[h] + 0.2 (E[u] + I[u] + D[u]) A[u] + 0.3 (E[t] + I[t] + D[t]) A[t] + 0.4 (E[l] + l[I] + D[l]) A[l].
Week 12 or Early Termination

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
Percentage of Participants With at Least 50 Percent (%) Reduction in Psoriasis Area Severity Index (PASI) Score at Week 24 or Early Termination
Time Frame: Week 24 or Early Termination
PASI score: range: 0 (no disease) to 72 (maximal disease). Body was divided into head (h), trunk (t), upper (u) and lower (l) extremities. For each section, percent area of skin involved (A) was estimated: 1 (<10%) to 6 (90% - 100%), and severity was estimated by clinical signs: (erythema [E], induration [I], and desquamation [D]) on a scale: 0=no symptoms, 4=very marked. PASI score= 0.1 (E[h] + I[h] + D[h]) A[h] + 0.2 (E[u] + I[u] + D[u]) A[u] + 0.3 (E[t] + I[t] + D[t]) A[t] + 0.4 (E[l] + l[I] + D[l]) A[l].
Week 24 or Early Termination
Percentage of Participants With Static Physician's Global Assessment (PGA) Score of Clear or Almost Clear at Week 12, 24 or Early Termination
Time Frame: Week 12 or Early Termination, Week 24 or Early Termination
Static PGA of psoriasis is scored on a 5-point scale (0 = clear to 4 = severe), reflecting a global consideration of the erythema, induration and scaling across all psoriatic lesions. Clear (erythema: no, scale: no, induration: no thickness); Almost Clear (erythema: light pink, scale: fine scale, induration: barely palpable); Mild (erythema: light red, scale: coarse scale on most lesions, induration: slight but visible elevation, indistinct edges); Moderate (erythema: red, scale: coarse adherent scale predominates, induration: moderate elevation with edges); and Severe (erythema: dark red to purple, scale: thickened adherent scale, induration: marked thickness distinct and pronounced edges). Percentage of participants with static PGA score of clear or almost clear are reported.
Week 12 or Early Termination, Week 24 or Early Termination

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.
Genzyme, a Sanofi Company

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, 2008

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.
February 1, 2009

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.
June 1, 2009

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).
January 15, 2008

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.
January 24, 2008

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.
January 25, 2008

Study Record Updates

Last Update Posted (ESTIMATE)

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.
May 5, 2014

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.
April 2, 2014

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.
April 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

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.
  • HECTPS02507

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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