Rheumatoid ArthritisPhase 3NCT00661661
Long-Term, Open-Label Study Of CP-690,550 For Treatment Of Rheumatoid Arthritis In Japan
A Phase 3 study testing CP-690,550 in people with Rheumatoid Arthritis, run by Pfizer at 56 sites in Japan.
Trial summary
The purpose of this study is to determine the long-term effectiveness and safety of CP-690,550 for the treatment of rheumatoid arthritis. Subjects are only eligible for this study after they have completed participation in another "qualifying" study of CP-690,550. Read more about this study
- Who is it for?
- Ages 20 years and older
- Conditions the study is for
- Rheumatoid Arthritis
- What is being tested?
- CP-690,550
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 487 participants
- Where
- 56 sitesJapan
- Study dates
- Apr 2008to Dec 2013
- Phase
- Phase 3
- 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 20 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subjects who have completed their participation in a randomized "qualifying" study of CP-690,550 for the treatment of rheumatoid arthritis
Who cannot join
- Serious medical conditions that would make treatment with CP-690,550 potentially unsafe
Trial locations and contacts
56 sites in 1 country.
56 sites in 1 country
Japan56 sites
Tokyo Women's Medical University Medical Center East
Arakawa-ku, Tokyo, 116-8567
Katayama Orthopedic Rheumatology Clinic
Asahikawa, Hokkaido, 078-8243
Juntendo University Hospital
Bunkyo-ku, Tokyo, 113-8431
Tokyo Medical And Dental University Hospital, Faculty of Medicine
Bunkyo-ku, Tokyo, 113-8519
The University of Tokyo Hospital
Bunkyo-ku, Tokyo, 113-8655
National Hospital Organization Chiba-East Hospital
Chiba, Chiba, 260-8712
Sasaki Foundation Kyoundo Hospital
Chiyoda-ku, Tokyo, 101-0062
Kondo clinic for rheumatism and orthopaedics
Fukuoka, Fukuoka, 810-0001
National Hospital Organization Kyushu Medical Center
Fukuoka, Fukuoka, 810-8563
Medical Co.LTA PS Clinic
Fukuoka, Fukuoka, 812-0025
Fukusima Daiichi Hospital
Fukushima, Fukushima, 960-8251
Seirei Hamamatsu General Hospital
Hamamatsu, Shizuoka, 430-8558
Higashihiroshima Memorial Hospital
Higashihiroshima, Hiroshima, 739-0002
Hiroshima Rheumatology Clinic
Hiroshima, Hiroshima, 730-0017
Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital
Hiroshima, Hiroshima, 730-8619
Taga General Hospital
Hitachi-shi, Ibaraki, 316-0035
Aso Iizuka Hospital
Iiduka, Fukuoka, 820-8505
Higami hospital
Kashihara, Nara, 634-0007
National Hospital Organization Osaka Minami Center
Kawachi-Nagano, Osaka, 586-8521
Saitama Medical Center
Kawagoe-shi, Saitama, 350-8550
University of Occupational and Environmental Health Hospital
Kitakyushu, Fukuoka, 807-8555
Kitasato University Kitasato Institute Medical Center Hospital
Kitamoto, Saitama, 364-8501
Juntendo Tokyo Koto Geriatric Medical Center
Koto-ku, Tokyo, 136-0075
Kumamoto Saishunso National Hospital
Koushi, Kumamoto, 861-1196
Kumamoto Orthopaedic Hospital
Kumamoto, Kumamoto, 862-0976
St. Mary's Hospital
Kurume, Fukuoka, 830-8543
University Hospital, Kyoto Prefectural University of Medicine
Kyoto, Kyoto, 602-8566
Kyoto University Hospital
Kyoto, Kyoto, 606-8507
National Hospital Organization Tokyo Medical Center
Meguro-ku, Tokyo, 152-8902
Sendai Taihaku Hospital
Miyagi, 982-0032
National Hospital Organization MURAYAMA Medical Center
Musashimurayama-shi, Tokyo, 208-0011
Nagasaki University Hospital of Medicine and Dentistry
Nagasaki, Nagasaki, 852-8501
National hospital Organization Nagoya Medical Center
Nagoya, Aichi-ken, 460-0001
Nagoya University Hospital
Nagoya, Aichi-ken, 466-8560
Chiba-ken Saiseikai Narashino Hospital
Narashino, Chiba, 275-8580
Niigata University Medical & Dental Hospital
Niigata, Niigata, 951-8520
The Hospital of Hyogo College of Medicine
Nishinomiya, Hyōgo, 663-8501
National Hospital Organization Nagasaki Medical Center
Ohmura, Nagasaki, 856-0835
A Medical Corporation Oribe Rheumatism Internist Clinic
Ōita, Oita Prefecture, 870-0823
The Tazuke Kofukai Medical Research Institute Kitano Hospital
Osaka, Osaka, 530-8480
National Hospital Organization Sagamihara National Hospital
Sagamihara, Kanagawa, 252-0392
Saitama city hospital
Saitama, Saitama, 336-8522
Sapporo city general hospital
Sapporo, Hokkaido, 060-8604
Hokkaido University Hospital
Sapporo, Hokkaido, 060-8648
Hokkaido Medical Center for Rheumatic Diseases
Sapporo, Hokkaido, 063-0811
Sasebo Chuo Hospital
Sasebo, Nagasaki, 857-1195
SHONO Rheumatism Clinic
Sawara-ku, Fukuoka, 814-0002
Hikarigaoka Spellman Hospital
Sendai, Miyagi, 983-0833
Fukuhara Hospital
Setagaya-ku, Tokyo, 155-0031
Keio University Hospital
Shinjuku-ku, Tokyo, Japan, 160-8582
Tokyo Women's Medical University, Institute of Rheumatology
Shinjyuku-ku, Tokyo, 162-0054
Inoue Hospital
Takasaki, Gunma, 370-0053
National hospital Organization Mie Chuou Medical Center
Tsu, Mie-ken, 514-1101
Tsukuba University Hospital
Tsukuba, Ibaraki, 305-8576
Ureshino Medical Center
Ureshino, Saga-ken, 843-0393
Shimoshizu National Hospital
Yotukaidou, Chiba, 284-0003
About this study
Official title: A Long-term, Open-label Study Of Cp-690,550 to Confirm The Safety Following Long Term Administration Of Cp-690,550 In The Treatment Of Rheumatoid Arthritis
The purpose of this study is to determine the long-term effectiveness and safety of CP-690,550 for the treatment of rheumatoid arthritis. Subjects are only eligible for this study after they have completed participation in another "qualifying" study of CP-690,550.
- Conditions
- Rheumatoid Arthritis
- Being tested
- CP-690,550
- Keywords
- Long term open label study in Japan, CP-690, 550, tofacitinib
- Medical subject headings
- Arthritis, Rheumatoid
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CP-690,550Drug
5 mg BID up to 10 mg BID until launch
| Study group | Role | What they receive |
|---|---|---|
| CP-690,550 | Experimental | Not described Receives: Drug: CP-690,550 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs)
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to the last participants visit in the study. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for safety evaluation.
Measured: Baseline up to Week 288
Secondary outcomes (22)
Percentage of Participants Achieving American College of Rheumatology 20% (ACR20) Response
ACR20 response: greater than or equal to (>=) 20 percent (%) improvement in tender joint count; >=20% improvement in swollen joint count; and >=20% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the Health Assessment Questionnaire [HAQ]); and C-Reactive Protein (CRP). The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Percentage of Participants Achieving American College of Rheumatology 50% (ACR50) Response
ACR50 response: greater than or equal to (>=) 50 percent (%) improvement in tender joint count; >=50% improvement in swollen joint count; and >=50% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the Health Assessment Questionnaire [HAQ]); and C-Reactive Protein (CRP). The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Percentage of Participants Achieving American College of Rheumatology 70% (ACR70) Response
ACR70 response: greater than or equal to (>=) 70 percent (%) improvement in tender joint count; >=70% improvement in swollen joint count; and >=70% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the Health Assessment Questionnaire [HAQ]); and C-Reactive Protein (CRP). The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Health Assessment Questionnaire-Disability Index (HAQ-DI) Score
HAQ-DI: participant-reported assessment of ability to perform tasks in 8 categories of daily living activities: dress/groom, arise, eat, walk, reach, grip, hygiene and common activities over past week. Each item scored on 4-point scale, 0 to 3: 0=no difficulty; 1=some difficulty;2=much difficulty; 3=unable to do. Overall score was computed as sum of domain sc ores and divided by number of domains answered. Total possible score range 0-3: 0=least difficulty and 3=extreme difficulty. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Disease Activity Score Using 28-Joint Count and Erythrocyte Sedimentation Rate (4 Variables) (DAS28-4 [ESR])
DAS28-4 (ESR) calculated from swollen joint count (SJC) and tender/painful joint count (TJC) using 28 joint count, erythrocyte sedimentation rate (ESR) (millimeters per hour [mm/hour]) and patient's global assessment (PtGA) of disease activity (transformed score ranging 0 to 10; higher score indicated greater affectation due to disease activity). Total score range:0 to 9.4, higher score indicated more disease activity. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Disease Activity Score Using 28-Joint Count and C-Reactive Protein (3 Variables) (DAS28-3 [CRP])
DAS28-3 (CRP) was calculated from SJC and TJC using 28 joint count and CRP (mg/L). Total score range: 0 to 9.4, higher score indicated more disease activity. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Patient Global Assessment of Arthritis
Participants answered: "Considering all the ways your arthritis affects you, how are you feeling today?" Participants responded by using a 0 - 100 mm VAS where 0 = very well and 100 = very poorly. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Physician Global Assessment of Arthritis
Physician Global Assessment of Arthritis was measured on a 0 to 100 mm VAS, where 0 mm = very good and 100 mm = very bad. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Patient Assessment of Arthritis Pain
Participants rated the severity of arthritis pain on a 0 to 100 millimeter (mm) visual analogue scale (VAS), where 0 mm = no pain and 100 mm = most severe pain. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Tender/Painful Joint Counts
This was carried out on 68 joints. Each joint's response to pressure/motion was assessed using the following scale: Present/Absent/Not Done/Not Applicable (to be used for artificial joints). The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Swollen Joint Counts
Sixty-six (66) joints, the same as those assessed for tenderness/pain except for the right and left hip joints, were assessed for swelling by palpation using the following scale: Present/Absent/Not Done/Not Applicable (to be used for artificial joints). The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Physical Functioning
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Role Physical
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Bodily Pain
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_General Health
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Vitality
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Social Functioning
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Role Emotional
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Mental Health
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Component Score_Physical
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Component Score_Mental
SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning) and is reported as 2 summary scores; physical component score and mental component score. Total score range for the summary scores = 0-100, where higher score represents higher level of functioning. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for efficacy evaluations except for Modified Total Sharp Score (mTSS).
Measured: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Month 24 in Study A3921044 in Modified Total Sharp Score (mTSS)
mTSS = sum of erosion and Joint Space Narrowing (JSN) scores for 44 joints (16 per hand and 6 per foot). mTSS scores range from 0 (normal) to 448 (worst possible total score). Change: scores at observation minus score at baseline. An increase in mTSS from baseline represented disease progression and/or joint worsening, no change represented halting of disease progression, and a decrease represented potential improvement. Month 24 (the final visit) in Study A3921044 was taken as the first visit in current study.
Measured: First visit in the study (Month 24 in Study A3921044), Weeks 24, 48, and 96
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Apr 2008 (estimated)
- Study startApr 2008
- Primary completionDec 2013
- Study completionDec 2013
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 (17)Papers the sponsor has linked to this study.
- Other trials for Rheumatoid ArthritisStudies 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 3
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 487 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
- NCT00661661
- Sponsor's protocol ID
- A3921041
- Status last verified
- Apr 2015
- First submitted
- 7 Feb 2008
- Last updated
- 12 May 2015
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Strand V, Schulze-Koops H, Al-Emadi S, Kinch CD, Gruben D, Germino R, Connell CA, Mysler E. Sex differences in the efficacy, safety and persistence of tofacitinib in patients with rheumatoid arthritis: a post hoc analysis of phase III and long-term extension trials. BMJ Open. 2025 Dec 24;15(12):e082366. doi: 10.1136/bmjopen-2023-082366.
PubMed 41448717Pope J, Finckh A, Silva-Fernandez L, Mandl P, Fan H, Rivas JL, Valderrama M, Montoro M. Tofacitinib Monotherapy in Rheumatoid Arthritis: Clinical Trials and Real-World Data Contextualization of Patients, Efficacy, and Treatment Retention. Open Access Rheumatol. 2024 Jun 11;16:115-126. doi: 10.2147/OARRR.S446431. eCollection 2024.
PubMed 38883150Curtis JR, Wollenhaupt J, Tas SW, Chatzidionysiou K, Wang L, Roberts K, Tsekouras V. Determinants of tofacitinib discontinuation in adult patients with rheumatoid arthritis during long-term extension studies up to 9.5 years. Rheumatol Adv Pract. 2024 May 11;8(2):rkae063. doi: 10.1093/rap/rkae063. eCollection 2024.
PubMed 38854417Charles-Schoeman C, Hyde C, Guan S, Parikh N, Wang J, Shahbazian A, Stockert L, Andrews J. Relationship Between Paraoxonase-1 Genotype and Activity, and Major Adverse Cardiovascular Events and Malignancies in Patients With Rheumatoid Arthritis Receiving Tofacitinib. J Rheumatol. 2023 Jul 15:jrheum.2023-0112. doi: 10.3899/jrheum.2023-0112. Online ahead of print.
PubMed 37453736Kristensen LE, Danese S, Yndestad A, Wang C, Nagy E, Modesto I, Rivas J, Benda B. Identification of two tofacitinib subpopulations with different relative risk versus TNF inhibitors: an analysis of the open label, randomised controlled study ORAL Surveillance. Ann Rheum Dis. 2023 Jul;82(7):901-910. doi: 10.1136/ard-2022-223715. Epub 2023 Mar 17.
PubMed 36931693Hansen KE, Mortezavi M, Nagy E, Wang C, Connell CA, Radi Z, Litman HJ, Adami G, Rossini M. Fracture in clinical studies of tofacitinib in rheumatoid arthritis. Ther Adv Musculoskelet Dis. 2022 Dec 27;14:1759720X221142346. doi: 10.1177/1759720X221142346. eCollection 2022.
PubMed 36601090Curtis JR, Yamaoka K, Chen YH, Bhatt DL, Gunay LM, Sugiyama N, Connell CA, Wang C, Wu J, Menon S, Vranic I, Gomez-Reino JJ. Malignancy risk with tofacitinib versus TNF inhibitors in rheumatoid arthritis: results from the open-label, randomised controlled ORAL Surveillance trial. Ann Rheum Dis. 2023 Mar;82(3):331-343. doi: 10.1136/ard-2022-222543. Epub 2022 Dec 5.
PubMed 36600185Winthrop KL, Yndestad A, Henrohn D, Danese S, Marsal S, Galindo M, Woolcott JC, Jo H, Kwok K, Shapiro AB, Jones TV, Diehl A, Su C, Panes J, Cohen SB. Influenza Adverse Events in Patients with Rheumatoid Arthritis, Ulcerative Colitis, or Psoriatic Arthritis in the Tofacitinib Clinical Development Programs. Rheumatol Ther. 2023 Apr;10(2):357-373. doi: 10.1007/s40744-022-00507-z. Epub 2022 Dec 17.
PubMed 36526796Winthrop KL, Curtis JR, Yamaoka K, Lee EB, Hirose T, Rivas JL, Kwok K, Burmester GR. Clinical Management of Herpes Zoster in Patients With Rheumatoid Arthritis or Psoriatic Arthritis Receiving Tofacitinib Treatment. Rheumatol Ther. 2022 Feb;9(1):243-263. doi: 10.1007/s40744-021-00390-0. Epub 2021 Dec 6.
PubMed 34870800Cohen SB, Tanaka Y, Mariette X, Curtis JR, Lee EB, Nash P, Winthrop KL, Charles-Schoeman C, Wang L, Chen C, Kwok K, Biswas P, Shapiro A, Madsen A, Wollenhaupt J. Long-term safety of tofacitinib up to 9.5 years: a comprehensive integrated analysis of the rheumatoid arthritis clinical development programme. RMD Open. 2020 Oct;6(3):e001395. doi: 10.1136/rmdopen-2020-001395.
PubMed 33127856van der Heijde D, Landewe RBM, Wollenhaupt J, Strengholt S, Terry K, Kwok K, Wang L, Cohen S. Assessment of radiographic progression in patients with rheumatoid arthritis treated with tofacitinib in long-term studies. Rheumatology (Oxford). 2021 Apr 6;60(4):1708-1716. doi: 10.1093/rheumatology/keaa476.
PubMed 33057725Panaccione R, Isaacs JD, Chen LA, Wang W, Marren A, Kwok K, Wang L, Chan G, Su C. Characterization of Creatine Kinase Levels in Tofacitinib-Treated Patients with Ulcerative Colitis: Results from Clinical Trials. Dig Dis Sci. 2021 Aug;66(8):2732-2743. doi: 10.1007/s10620-020-06560-4. Epub 2020 Aug 20.
PubMed 32816215Fleischmann R, Wollenhaupt J, Takiya L, Maniccia A, Kwok K, Wang L, van Vollenhoven RF. Safety and maintenance of response for tofacitinib monotherapy and combination therapy in rheumatoid arthritis: an analysis of pooled data from open-label long-term extension studies. RMD Open. 2017 Dec 18;3(2):e000491. doi: 10.1136/rmdopen-2017-000491. eCollection 2017.
PubMed 29435359Fleischmann R, Wollenhaupt J, Cohen S, Wang L, Fan H, Bandi V, Andrews J, Takiya L, Bananis E, Weinblatt ME. Effect of Discontinuation or Initiation of Methotrexate or Glucocorticoids on Tofacitinib Efficacy in Patients with Rheumatoid Arthritis: A Post Hoc Analysis. Rheumatol Ther. 2018 Jun;5(1):203-214. doi: 10.1007/s40744-018-0093-7. Epub 2018 Feb 7.
PubMed 29417430Cohen SB, Tanaka Y, Mariette X, Curtis JR, Lee EB, Nash P, Winthrop KL, Charles-Schoeman C, Thirunavukkarasu K, DeMasi R, Geier J, Kwok K, Wang L, Riese R, Wollenhaupt J. Long-term safety of tofacitinib for the treatment of rheumatoid arthritis up to 8.5 years: integrated analysis of data from the global clinical trials. Ann Rheum Dis. 2017 Jul;76(7):1253-1262. doi: 10.1136/annrheumdis-2016-210457. Epub 2017 Jan 31.
PubMed 28143815
Study at a glance
From the registry record, last updated by the sponsor on 12 May 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Long-term, Open-label Study Of Cp-690,550 to Confirm The Safety Following Long Term Administration Of Cp-690,550 In The Treatment Of Rheumatoid Arthritis
- ClinicalTrials.gov ID
- NCT00661661
- Acronym / sponsor ID
- A3921041
- Conditions
- Rheumatoid Arthritis
- Keywords
- Long term open label study in Japan, CP-690, 550, tofacitinib
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 487 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- Apr 2008
- Primary completion
- Dec 2013 (actual)
- Study completion
- Dec 2013 (actual)
- First posted
- 18 Apr 2008 (estimated)
- Results
- Posted 12 May 2015
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine the long-term effectiveness and safety of CP-690,550 for the treatment of rheumatoid arthritis. Subjects are only eligible for this study after they have completed participation in another "qualifying" study of CP-690,550.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| CP-690,550 | Experimental | Drug: CP-690,550 |
Who may qualify
- Ages
- 20 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Subjects who have completed their participation in a randomized "qualifying" study of CP-690,550 for the treatment of rheumatoid arthritis
Key exclusion criteria (1 listed)
- Serious medical conditions that would make treatment with CP-690,550 potentially unsafe
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-690,5505 mg BID up to 10 mg BID until launch | Drug | CP-690,550 |
Primary outcome
Number of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs)
Time frame: Baseline up to Week 288
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to the last participants visit in the study. The baseline data of Study A3921039, A3921040 or A3921044 were used as baseline data for safety evaluation.
22 secondary outcomes
Percentage of Participants Achieving American College of Rheumatology 20% (ACR20) Response
Time frame: Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Percentage of Participants Achieving American College of Rheumatology 50% (ACR50) Response
Time frame: Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Percentage of Participants Achieving American College of Rheumatology 70% (ACR70) Response
Time frame: Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Health Assessment Questionnaire-Disability Index (HAQ-DI) Score
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Disease Activity Score Using 28-Joint Count and Erythrocyte Sedimentation Rate (4 Variables) (DAS28-4 [ESR])
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Disease Activity Score Using 28-Joint Count and C-Reactive Protein (3 Variables) (DAS28-3 [CRP])
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Patient Global Assessment of Arthritis
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Physician Global Assessment of Arthritis
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Patient Assessment of Arthritis Pain
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Tender/Painful Joint Counts
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in Swollen Joint Counts
Time frame: Baseline, Weeks 2, 4,8,12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276 and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Physical Functioning
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Role Physical
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Bodily Pain
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_General Health
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Vitality
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Social Functioning
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Role Emotional
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Domain Score_Mental Health
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Component Score_Physical
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Baseline in 36-Item Short-Form Health Survey (SF-36) Component Score_Mental
Time frame: Baseline, Weeks 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, and 288
Change From Month 24 in Study A3921044 in Modified Total Sharp Score (mTSS)
Time frame: First visit in the study (Month 24 in Study A3921044), Weeks 24, 48, and 96
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 May 2015.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 41448717Strand V, Schulze-Koops H, Al-Emadi S, Kinch CD, Gruben D, Germino R, Connell CA, Mysler E. Sex differences in the efficacy, safety and persistence of tofacitinib in patients with rheumatoid arthritis: a post hoc analysis of phase III and long-term extension trials. BMJ Open. 2025 Dec 24;15(12):e082366. doi: 10.1136/bmjopen-2023-082366.
- Derived from this study: PubMed 38883150Pope J, Finckh A, Silva-Fernandez L, Mandl P, Fan H, Rivas JL, Valderrama M, Montoro M. Tofacitinib Monotherapy in Rheumatoid Arthritis: Clinical Trials and Real-World Data Contextualization of Patients, Efficacy, and Treatment Retention. Open Access Rheumatol. 2024 Jun 11;16:115-126. doi: 10.2147/OARRR.S446431. eCollection 2024.
- Derived from this study: PubMed 38854417Curtis JR, Wollenhaupt J, Tas SW, Chatzidionysiou K, Wang L, Roberts K, Tsekouras V. Determinants of tofacitinib discontinuation in adult patients with rheumatoid arthritis during long-term extension studies up to 9.5 years. Rheumatol Adv Pract. 2024 May 11;8(2):rkae063. doi: 10.1093/rap/rkae063. eCollection 2024.
- Derived from this study: PubMed 37453736Charles-Schoeman C, Hyde C, Guan S, Parikh N, Wang J, Shahbazian A, Stockert L, Andrews J. Relationship Between Paraoxonase-1 Genotype and Activity, and Major Adverse Cardiovascular Events and Malignancies in Patients With Rheumatoid Arthritis Receiving Tofacitinib. J Rheumatol. 2023 Jul 15:jrheum.2023-0112. doi: 10.3899/jrheum.2023-0112. Online ahead of print.
- Derived from this study: PubMed 36931693Kristensen LE, Danese S, Yndestad A, Wang C, Nagy E, Modesto I, Rivas J, Benda B. Identification of two tofacitinib subpopulations with different relative risk versus TNF inhibitors: an analysis of the open label, randomised controlled study ORAL Surveillance. Ann Rheum Dis. 2023 Jul;82(7):901-910. doi: 10.1136/ard-2022-223715. Epub 2023 Mar 17.
- Derived from this study: PubMed 36601090Hansen KE, Mortezavi M, Nagy E, Wang C, Connell CA, Radi Z, Litman HJ, Adami G, Rossini M. Fracture in clinical studies of tofacitinib in rheumatoid arthritis. Ther Adv Musculoskelet Dis. 2022 Dec 27;14:1759720X221142346. doi: 10.1177/1759720X221142346. eCollection 2022.
- Derived from this study: PubMed 36600185Curtis JR, Yamaoka K, Chen YH, Bhatt DL, Gunay LM, Sugiyama N, Connell CA, Wang C, Wu J, Menon S, Vranic I, Gomez-Reino JJ. Malignancy risk with tofacitinib versus TNF inhibitors in rheumatoid arthritis: results from the open-label, randomised controlled ORAL Surveillance trial. Ann Rheum Dis. 2023 Mar;82(3):331-343. doi: 10.1136/ard-2022-222543. Epub 2022 Dec 5.
- Derived from this study: PubMed 36526796Winthrop KL, Yndestad A, Henrohn D, Danese S, Marsal S, Galindo M, Woolcott JC, Jo H, Kwok K, Shapiro AB, Jones TV, Diehl A, Su C, Panes J, Cohen SB. Influenza Adverse Events in Patients with Rheumatoid Arthritis, Ulcerative Colitis, or Psoriatic Arthritis in the Tofacitinib Clinical Development Programs. Rheumatol Ther. 2023 Apr;10(2):357-373. doi: 10.1007/s40744-022-00507-z. Epub 2022 Dec 17.
- Derived from this study: PubMed 34870800Winthrop KL, Curtis JR, Yamaoka K, Lee EB, Hirose T, Rivas JL, Kwok K, Burmester GR. Clinical Management of Herpes Zoster in Patients With Rheumatoid Arthritis or Psoriatic Arthritis Receiving Tofacitinib Treatment. Rheumatol Ther. 2022 Feb;9(1):243-263. doi: 10.1007/s40744-021-00390-0. Epub 2021 Dec 6.
- Derived from this study: PubMed 33127856Cohen SB, Tanaka Y, Mariette X, Curtis JR, Lee EB, Nash P, Winthrop KL, Charles-Schoeman C, Wang L, Chen C, Kwok K, Biswas P, Shapiro A, Madsen A, Wollenhaupt J. Long-term safety of tofacitinib up to 9.5 years: a comprehensive integrated analysis of the rheumatoid arthritis clinical development programme. RMD Open. 2020 Oct;6(3):e001395. doi: 10.1136/rmdopen-2020-001395.
- Derived from this study: PubMed 33057725van der Heijde D, Landewe RBM, Wollenhaupt J, Strengholt S, Terry K, Kwok K, Wang L, Cohen S. Assessment of radiographic progression in patients with rheumatoid arthritis treated with tofacitinib in long-term studies. Rheumatology (Oxford). 2021 Apr 6;60(4):1708-1716. doi: 10.1093/rheumatology/keaa476.
- Derived from this study: PubMed 32816215Panaccione R, Isaacs JD, Chen LA, Wang W, Marren A, Kwok K, Wang L, Chan G, Su C. Characterization of Creatine Kinase Levels in Tofacitinib-Treated Patients with Ulcerative Colitis: Results from Clinical Trials. Dig Dis Sci. 2021 Aug;66(8):2732-2743. doi: 10.1007/s10620-020-06560-4. Epub 2020 Aug 20.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
Related trials for Rheumatoid Arthritis
RecruitingPhase 2
Study of PTC844 in Participants With Active Rheumatoid Arthritis
Rheumatoid Arthritis
Not yet recruitingPhase 1
An Ascending Dose Study of DKB903 in Participants With Rheumatoid Arthritis (RA) and Participants With Systemic Lupus Erythematosus (SLE)
Rheumatoid Arthritis and Systemic Lupus Erythematosus
Not yet recruitingPhase 1
R-2487 in Patients With Sjogren's Syndrome (SjD)
Sjogren's Syndrome, Sjögren
RecruitingPhase 1
A Trial in Healthy Adult Participants and Adults With Autoimmune Diseases to Test How HBM7020 is Tolerated and How it Behaves in the Body
Rheumatoid Arthritis, Systemic Lupus Erythematosus
Active, not recruitingPhase 2
A Study Evaluating the Safety and Efficacy of Inhaled AP01 in Participants With Progressive Pulmonary Fibrosis
Pulmonary Fibrosis, Progressive Pulmonary Fibrosis
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
56 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing CP-690,550 in people with Rheumatoid Arthritis, run by Pfizer at 56 sites in Japan.
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 1 inclusion and 1 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 12 May 2015. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 56 sites in Japan. 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. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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 12 May 2015). 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?
Number of Participants With Treatment-Emergent Adverse Events (AEs) or Serious Adverse Events (SAEs) (time frame: Baseline up to Week 288). 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 NCT00661661, which also lists 17 linked publications.
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 12 May 2015.