Skip to content

Long-Term Safety Follow-Up Of Subjects Previously Enrolled In Rheumatoid Arthritis Studies Of CP-690,550

A Prospective Observational Study To Evaluate Long-Term Safety And Functional Status Of Subjects With Rheumatoid Arthritis Previously Enrolled In Studies Of CP-690,550

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00414661
Enrollment
162
Registered
2006-12-21
Start date
2007-04-30
Completion date
2012-02-29
Last updated
2013-01-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arthritis, Rheumatoid

Keywords

Observational non-interventional long-term safety

Brief summary

The purpose of this study is to follow the health of subjects who have previously been enrolled in studies of CP-690,550 for treatment of their rheumatoid arthritis. Subjects are only eligible for this study after they have completed all participation in other studies of CP-690,550.

Detailed description

At their last visit of a qualifying study, eligible subjects will be given the opportunity to participate in this study.

Interventions

DRUGCP-690,550

Subjects had to have received CP-690,550 or other blinded study drug in index study. No intervention in this long-term follow-up trial.

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects who have completed all participation in any other Phase 2B or Phase 3 studies of CP-690,550 for rheumatoid arthritis.

Exclusion criteria

* Any subject who refuses consent.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Lymphoproliferative Disorders (LPD)Up to Month 24Incidence rate was calculated separately for active treatment period and follow-up period in previous studies as number of participants with LPD by number of days while on active treatment or during follow-up period per 100 person-years. Standardization of incidence rates was based upon the age and sex distribution of the entire study population.
Incidence of LymphomaUp to Month 24Incidence rate was calculated separately for active treatment period and follow-up period in previous studies as number of participants with lymphoma by number of days while on active treatment or during follow-up period per 100 person-years. Standardization of incidence rates was based upon the age and sex distribution of the entire study population.
Incidence of Important InfectionsUp to Month 24Incidence rate was calculated separately for active treatment period and follow-up period in previous studies as number of participants with important infections by number of days while on active treatment or during follow-up period per 100 person-years. Standardization of incidence rates was based upon the age and sex distribution of the entire study population.

Other

MeasureTime frameDescription
Health Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline, Month 6, 12, 18, 24HAQ-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 from 0 to 3: 0=no difficulty; 1=some difficulty; 2=much difficulty; 3=unable to do. Overall score was computed as the sum of domain scores and divided by the number of domains answered. Total possible score range 0-3 where 0 = least difficulty and 3 = extreme difficulty.

Countries

Argentina, Brazil, Bulgaria, Canada, Chile, Czechia, Dominican Republic, Finland, Greece, Hungary, India, Italy, Japan, Mexico, Poland, Puerto Rico, Slovakia, South Korea, Spain, Ukraine, United States

Participant flow

Recruitment details

Participants who received at least 1 dose of CP-690,550, placebo or adalimumab for the treatment of Rheumatoid Arthritis (RA) in previous studies and had ceased participation in other Phase 2B or 3 randomized, controlled or open-label study of CP-690,550 were eligible for this study.

Participants by arm

ArmCount
CP-690,550 >=10 mg
Participants who had received 1 dose CP-690,550 greater than or equal to (\>=) 10 milligram (mg) orally twice daily in any of the previous studies.
48
CP-690,550 <10 mg
Participants who had received 1 dose CP-690,550 less than (\<) 10 mg orally twice daily in any of the previous studies.
89
Placebo
Participants who had received 1 dose of matching-placebo in any of the previous studies.
22
Adalimumab
Participants who had received 1 dose of adalimumab in any of the previous studies.
3
Total162

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyDeath2500
Overall StudyLost to Follow-up1401
Overall StudyOther6300
Overall StudyWithdrawal by Subject5222

Baseline characteristics

CharacteristicCP-690,550 >=10 mgCP-690,550 <10 mgPlaceboAdalimumabTotal
Age Continuous57.2 years
STANDARD_DEVIATION 10.8
54.7 years
STANDARD_DEVIATION 11.6
51.8 years
STANDARD_DEVIATION 13.5
52.3 years
STANDARD_DEVIATION 16
55.0 years
STANDARD_DEVIATION 11.7
Sex: Female, Male
Female
40 Participants72 Participants17 Participants3 Participants132 Participants
Sex: Female, Male
Male
8 Participants17 Participants5 Participants0 Participants30 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
3 / 482 / 891 / 220 / 3
serious
Total, serious adverse events
0 / 481 / 890 / 220 / 3

Outcome results

Primary

Incidence of Important Infections

Incidence rate was calculated separately for active treatment period and follow-up period in previous studies as number of participants with important infections by number of days while on active treatment or during follow-up period per 100 person-years. Standardization of incidence rates was based upon the age and sex distribution of the entire study population.

Time frame: Up to Month 24

Population: Safety analysis set included all participants who were previously enrolled in either randomized, controlled or open-label studies of CP-690,550 and had signed the informed consent form for this study.

ArmMeasureValue (NUMBER)
CP-690,550 >=10 mgIncidence of Important Infections0.000 Infections per 100 person-years
CP-690,550 <10 mgIncidence of Important Infections0.607 Infections per 100 person-years
PlaceboIncidence of Important Infections0.000 Infections per 100 person-years
AdalimumabIncidence of Important Infections0.000 Infections per 100 person-years
Primary

Incidence of Lymphoma

Incidence rate was calculated separately for active treatment period and follow-up period in previous studies as number of participants with lymphoma by number of days while on active treatment or during follow-up period per 100 person-years. Standardization of incidence rates was based upon the age and sex distribution of the entire study population.

Time frame: Up to Month 24

Population: Safety analysis set included all participants who were previously enrolled in either randomized, controlled or open-label studies of CP-690,550 and had signed the informed consent form for this study.

ArmMeasureValue (NUMBER)
CP-690,550 >=10 mgIncidence of LymphomaNA Lymphoma per 100 person-years
CP-690,550 <10 mgIncidence of LymphomaNA Lymphoma per 100 person-years
PlaceboIncidence of LymphomaNA Lymphoma per 100 person-years
AdalimumabIncidence of LymphomaNA Lymphoma per 100 person-years
Primary

Incidence of Lymphoproliferative Disorders (LPD)

Incidence rate was calculated separately for active treatment period and follow-up period in previous studies as number of participants with LPD by number of days while on active treatment or during follow-up period per 100 person-years. Standardization of incidence rates was based upon the age and sex distribution of the entire study population.

Time frame: Up to Month 24

Population: Safety analysis set included all participants who were previously enrolled in either randomized, controlled or open-label studies of CP-690,550 and had signed the informed consent form for this study.

ArmMeasureValue (NUMBER)
CP-690,550 >=10 mgIncidence of Lymphoproliferative Disorders (LPD)NA LPD per 100 person-years
CP-690,550 <10 mgIncidence of Lymphoproliferative Disorders (LPD)NA LPD per 100 person-years
PlaceboIncidence of Lymphoproliferative Disorders (LPD)NA LPD per 100 person-years
AdalimumabIncidence of Lymphoproliferative Disorders (LPD)NA LPD per 100 person-years
Other Pre-specified

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 from 0 to 3: 0=no difficulty; 1=some difficulty; 2=much difficulty; 3=unable to do. Overall score was computed as the sum of domain scores and divided by the number of domains answered. Total possible score range 0-3 where 0 = least difficulty and 3 = extreme difficulty.

Time frame: Baseline, Month 6, 12, 18, 24

Population: Safety analysis set. Here, 'N' (number of participants analyzed) signifies those participants who were evaluable for the measure and 'n' signifies participants evaluable at each time point for each arm respectively.

ArmMeasureGroupValue (MEAN)Dispersion
CP-690,550 >=10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 18 (n= 35, 76, 20, 0)1.15 units on a scaleStandard Deviation 0.59
CP-690,550 >=10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline (n= 48, 88, 22, 3)1.32 units on a scaleStandard Deviation 0.67
CP-690,550 >=10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 6 (n= 37, 81, 21, 2)1.08 units on a scaleStandard Deviation 0.61
CP-690,550 >=10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 24 (n= 31, 68, 20, 0)1.15 units on a scaleStandard Deviation 0.69
CP-690,550 >=10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 12 (n= 39, 79, 21, 1)1.16 units on a scaleStandard Deviation 0.63
CP-690,550 <10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 24 (n= 31, 68, 20, 0)1.14 units on a scaleStandard Deviation 0.78
CP-690,550 <10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 6 (n= 37, 81, 21, 2)1.23 units on a scaleStandard Deviation 0.69
CP-690,550 <10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline (n= 48, 88, 22, 3)1.42 units on a scaleStandard Deviation 0.67
CP-690,550 <10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 12 (n= 39, 79, 21, 1)1.12 units on a scaleStandard Deviation 0.76
CP-690,550 <10 mgHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 18 (n= 35, 76, 20, 0)1.07 units on a scaleStandard Deviation 0.77
PlaceboHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline (n= 48, 88, 22, 3)1.63 units on a scaleStandard Deviation 0.76
PlaceboHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 12 (n= 39, 79, 21, 1)1.15 units on a scaleStandard Deviation 0.81
PlaceboHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 6 (n= 37, 81, 21, 2)1.21 units on a scaleStandard Deviation 0.82
PlaceboHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 18 (n= 35, 76, 20, 0)1.12 units on a scaleStandard Deviation 0.86
PlaceboHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 24 (n= 31, 68, 20, 0)1.07 units on a scaleStandard Deviation 0.87
AdalimumabHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 24 (n= 31, 68, 20, 0)NA units on a scale
AdalimumabHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreBaseline (n= 48, 88, 22, 3)1.13 units on a scaleStandard Deviation 0.13
AdalimumabHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 6 (n= 37, 81, 21, 2)0.19 units on a scaleStandard Deviation 0.27
AdalimumabHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 12 (n= 39, 79, 21, 1)0.88 units on a scale
AdalimumabHealth Assessment Questionnaire-Disability Index (HAQ-DI) ScoreMonth 18 (n= 35, 76, 20, 0)NA units on a scale

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026