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Completed Phase 2 Interventional Results available

A Pharmacokinetic/Pharmacodynamic Study Comparing PF-05280586 To Rituximab In Subjects With Active Rheumatoid Arthritis With An Inadequate Response To TNF Inhibitors (REFLECTIONS B328-01)

ClinicalTrials.gov ID: NCT01526057

Public ClinicalTrials.gov record NCT01526057. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 27, 2026, 1:39 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A RANDOMIZED, DOUBLE-BLIND, STUDY COMPARING THE PHARMACOKINETICS AND PHARMACODYNAMICS, AND ASSESSING THE SAFETY OF PF-05280586 AND RITUXIMAB IN SUBJECTS WITH ACTIVE RHEUMATOID ARTHRITIS ON A BACKGROUND OF METHOTREXATE WHO HAVE HAD AN INADEQUATE RESPONSE TO ONE OR MORE TNF ANTAGONIST THERAPIES

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

In this study, patients with moderate to severe rheumatoid arthritis who are being treated with methotrexate will receive 2 intravenous treatments with either PF-05280586 or Rituxan (Rituximab) or MabThera (Rituximab). During the course of the study, the effects of the drugs will be assessed by sampling the levels of drug in the blood, blood cell counts, and by comparing these levels among the different treatments. Safety, tolerability and immunologic response also will be evaluated throughout.

Study identification

NCT ID
NCT01526057
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Pfizer
Industry
Enrollment
220 participants

Conditions and interventions

Interventions

Biological

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 20, 2012 (Actual)
Primary completion
Aug 13, 2013 (Actual)
Completion
May 7, 2014 (Actual)
Last update posted
Nov 19, 2019

2012 – 2014

United States locations

U.S. sites
43
U.S. states
20
U.S. cities
35
Facility City State ZIP Site status
University of Alabama at Bermingham Birmingham Alabama 35249 —
University of Alabama at Birmingham - Arthritis Clinical Intervention Program (ACIP) SRC 076 Birmingham Alabama 35294 —
Rheumatology Associates of North Alabama, PC Huntsville Alabama 35801 —
ArthroCare, Arthritis Care & Research, PC Gilbert Arizona 85234 —
Mercy Clinic Hot Springs Communities Hot Springs Arkansas 71913 —
UCLA David Geffen School of Medicine Los Angeles California 90095-1670 —
Ronald Reagan UCLA Medical Center Los Angeles California 90095 —
Desert Medical Advances Palm Desert California 92260 —
Advances In Medicine Rancho Mirage California 92270 —
New England Research Assoc. LLC Trumbull Connecticut 06611 —
Arthritis Associates Orlando Florida 32804 —
University of South Florida - College of Medicine, Frank and Carol Morsani Center Tampa Florida 33612 —
Loyola Center for Health at Burr Ridge Burr Ridge Illinois 60527 —
Loyola Medical Medical Center Outpatient Center Maywood Illinois 60153 —
Loyola University Medical Center Pharmacy Maywood Illinois 60153 —
Illinois Bone and Joint Institute Morton Grove Illinois 60053 —
Loyola Center for health at Oakbrook Terrace North Oakbrook Terrace Illinois 60181 —
Bluegrass Community Research, Inc. Lexington Kentucky 40504 —
Klein & Associates, M.D., P.A. Cumberland Maryland 21502 —
Klein & Associates, M.D., P.A. Hagerstown Maryland 21740 —
Clinical Pharmacology Study Group Worcester Massachusetts 01605 —
UMass Memorial Medical Center - Memorial Campus Worcester Massachusetts 01605 —
UMass Memorial Medical Center-Rheumatology Center-Memorial Campus Worcester Massachusetts 01605 —
Bronson Internal Medicine & Rheumatology Battle Creek Michigan 49015 —
Rheumatology/Arthritis Center Lansing Michigan 48910 —
University Of Nevada School Of Medicine Las Vegas Nevada 89102 —
Dartmouth Hitchcock Medical Center Lebanon New Hampshire 03756 —
North Shore-LIJ Health System - Division of Rheumatology and Allergy-Clinical Immunology Great Neck New York 11021 —
Box Arthritis & Rheumatology of the Carolinas, PLLC Charlotte North Carolina 28210 —
Hickory Family Practice Associates Hickory North Carolina 28601 —
PMG Research of Hickory, LLC - PI's Main Office (Subject visit, IP Storage, Infusion, & Lab Draws) Hickory North Carolina 28602 —
PMG Research of Hickory Hickory North Carolina 28602 —
Cincinnati Rheumatic Disease Study Group, Inc. Cincinnati Ohio 45219 —
Health Research of Oklahoma Oklahoma City Oklahoma 73103 —
Altoona Center for Clinical Research Duncansville Pennsylvania 16635 —
The Arthritis Group Philadelphia Pennsylvania 19152 —
Clinical Research Center of Reading, LLP Wyomissing Pennsylvania 19610 —
Arthritis Associates, PLLC Hixson Tennessee 37343 —
Arthritis Clinic Jackson Tennessee 38305 —
West Tennessee Research Institute Jackson Tennessee 38305 —
Metroplex Clinical Research Center Dallas Texas 75231 —
Center For Clinical Trials Of Houston Houston Texas 77004 —
Southwest Rheumatology Research LLC. Mesquite Texas 75150 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 41 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01526057, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 19, 2019 · Synced Oct 27, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01526057 live on ClinicalTrials.gov.

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