A Study of PF-06438179 (Infliximab-Pfizer) and Infliximab in Combination With Methotrexate in Subjects With Active Rheumatoid Arthritis (REFLECTIONS B537-02).

ACR20 response: greater than or equal to (>=) 20 percent (%) improvement in tender joint count (TJC); >= 20% improvement in swollen joint count (SJC); and >= 20% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity (PGA); physician global assessment of disease activity; self-assessed disability (health assessment questionnaire-disability index [HAQ-DI]); and C-Reactive Protein (CRP).

ACR20 response: >=20% 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; HAQ-DI and CRP.

ACR20 response: >=20% 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; HAQ-DI and CRP.

ACR20 response: >=20% 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; HAQ-DI and CRP.

ACR50 response: >=50% improvement in tender joint count, >=50% improvement in swollen joint count improvement and >=50% 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, HAQ-DI and CRP. ACR70 response: >=70% improvement in tender joint count, >=70% improvement in swollen joint count improvement and >=70% 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, HAQ-DI and CRP.

ACR50 response: >=50% improvement in tender joint count, >=50% improvement in swollen joint count improvement and >=50% 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, HAQ-DI and CRP. ACR70 response: >=70% improvement in tender joint count, >=70% improvement in swollen joint count improvement and >=70% 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, HAQ-DI and CRP.

ACR50 response: >=50% improvement in tender joint count, >=50% improvement in swollen joint count improvement and >=50% 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, HAQ-DI and CRP. ACR70 response: >=70% improvement in tender joint count, >=70% improvement in swollen joint count improvement and >=70% 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, HAQ-DI and CRP.

DAS28 is measure of disease activity in participants. DAS28-4 (CRP): calculated from SJC, TJC, CRP(mg/L) and PGA (participant rated disease activity on visual analogue scale [VAS] from 0 to 100 mm; high score=worse health). Total score range of DAS28-4 (CRP): 0 to 9.4(0=no activity; 9.4=extreme disease activity), higher score=more disease activity. DAS28-4(CRP) less than (<)2.6=remission, <3.2=low disease activity, >=3.2-5.1=moderate disease activity and greater than (>) 5.1=high disease activity. HAQ-DI assess degree of difficulty a participant experienced (past week) in 8 domain of daily activities: dressing and grooming, arising, eating, walking, hygiene, reach, grip and other activities. Each item scored on a 4-point scale ranging from 0 to 3(0=no difficulty; 3=extreme difficulty). Overall score: sum of domain scores/number of domains answered. Total possible score range (0=least difficulty; 3=extreme difficulty); high scores=more difficulty in performing daily living activities.

DAS28 is measure of disease activity in participants. DAS28-4 (CRP): calculated from SJC, TJC, CRP(mg/L) and PGA (participant rated disease activity on VAS from 0 to 100 millimeter [mm]; high score=worse health). Total score range of DAS28-4 (CRP): 0 to 9.4(0=no activity; 9.4=extreme disease activity), higher score=more disease activity. DAS28-4(CRP) <2.6=remission, <3.2=low disease activity, >=3.2-5.1=moderate disease activity and >5.1=high disease activity. HAQ-DI assess degree of difficulty a participant experienced (past week) in 8 domain of daily activities: dressing and grooming, arising, eating, walking, hygiene, reach, grip and other activities. Each item scored on a 4-point scale ranging from 0 to 3(0=no difficulty; 3=extreme difficulty). Overall score: sum of domain scores/number of domains answered. Total possible score range (0=least difficulty; 3=extreme difficulty); high scores=more difficulty in performing daily living activities.

DAS28 is measure of disease activity in participants. DAS28-4 (CRP): calculated from SJC, TJC, CRP(mg/L) and PGA (participant rated disease activity on VAS from 0 to 100 mm; high score=worse health). Total score range of DAS28-4 (CRP): 0 to 9.4(0=no activity; 9.4=extreme disease activity), higher score=more disease activity. DAS28-4(CRP) <2.6=remission, <3.2=low disease activity, >=3.2-5.1=moderate disease activity and >5.1=high disease activity. HAQ-DI assess degree of difficulty a participant experienced (past week) in 8 domain of daily activities: dressing and grooming, arising, eating, walking, hygiene, reach, grip and other activities. Each item scored on a 4-point scale ranging from 0 to 3(0=no difficulty; 3=extreme difficulty). Overall score: sum of domain scores/number of domains answered. Total possible score range (0=least difficulty; 3=extreme difficulty); high scores=more difficulty in performing daily living activities.

ACR/EULAR remission was considered if the scores on tender joint count, swollen joint count, hs-CRP (mg/dL), and patient's global assessment of arthritis (PGA) all were less than or equal to (=<) 1 or the score on the simplified disease activity index (SDAI) was =<3.3. SDAI was calculated as the sum of number of tender and swollen joint count (using 28 joints), PGA, physician global assessment, and CRP (mg/dL). PGA was assessed on a 10 mm VAS ranging from 0 (very well) to 10 (very poor), where higher scores indicate worse health condition. Physician global assessment was recorded on a 10 mm VAS ranging from 0 (very well) to 10 (very poor), where higher scores indicated more disease activity. DAS28 calculated from number of swollen joints and painful joints using the 28 joints count, CRP (mg/dL) and PGA using a 10 mm-VAS from 0 (very well) to 10 (very poor), where higher scores indicate worse health condition. DAS28 <3.2: low disease activity, DAS28 <2.6: remission.

ACR/EULAR remission was considered if the scores on tender joint count, swollen joint count, hs-CRP (mg/dL), and PGA all were =<1 or the score on the SDAI was =<3.3. SDAI was calculated as the sum of number of tender and swollen joint count (using 28 joints), PGA, physician global assessment, and CRP (mg/dL). PGA was assessed on a 10 mm VAS ranging from 0 (very well) to 10 (very poor), where higher scores indicate worse health condition. Physician global assessment was recorded on a 10 mm VAS ranging from 0 (very well) to 10 (very poor), where higher scores indicated more disease activity. DAS28 calculated from number of swollen joints and painful joints using the 28 joints count, CRP (mg/dL) and PGA using a 10 mm-VAS from 0 (very well) to 10 (very poor), where higher scores indicate worse health condition. DAS28 <3.2: low disease activity, DAS28 <2.6: remission.

ACR/EULAR remission was considered if the scores on tender joint count, swollen joint count, hs-CRP (mg/dL), and PGA all were =<1 or the score on the SDAI was =<3.3. SDAI was calculated as the sum of number of tender and swollen joint count (using 28 joints), PGA, physician global assessment, and CRP (mg/dL). PGA was assessed on a 10 mm VAS ranging from 0 (very well) to 10 (very poor), where higher scores indicate worse health condition. Physician global assessment was recorded on a 10 mm VAS ranging from 0 (very well) to 10 (very poor), where higher scores indicated more disease activity. DAS28 calculated from number of swollen joints and painful joints using the 28 joints count, CRP (mg/dL) and PGA using a 10 mm-VAS from 0 (very well) to 10 (very poor), where higher scores indicate worse health condition. DAS28 <3.2: low disease activity, DAS28 <2.6: remission.

EULAR response was based on DAS28 EULAR response criteria which was defined as good response = DAS28 change of >1.2 with DAS28 =<3.2; moderate response = DAS28 change of >0.6 to =<1.2 with DAS28 >3.2-5.1 and no-response = DAS28 change of =<0.6 with DAS28 >5.1.

EULAR response was based on DAS28 EULAR response criteria which was defined as good response = DAS28 change of >1.2 with DAS28 =<3.2; moderate response = DAS28 change of >0.6 to =<1.2 with DAS28 >3.2-5.1 and no-response = DAS28 change of =<0.6 with DAS28 >5.1.

EULAR response was based on DAS28 EULAR response criteria which was defined as good response = DAS28 change of >1.2 with DAS28 =<3.2; moderate response = DAS28 change of >0.6 to =<1.2 with DAS28 >3.2-5.1 and no-response = DAS28 change of =<0.6 with DAS28 >5.1.

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. 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 were events between first dose of study drug and up to Week 30 that were absent before treatment or that worsened relative to pre-treatment state. Treatment-related TEAE was any untoward medical occurrence attributed to study drug in a participant who received study drug. AEs included both serious and non-serious adverse events.

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. 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 were events between first dose of study drug and up to Week 54 that were absent before treatment or that worsened relative to pre-treatment state. Treatment-related TEAE was any untoward medical occurrence attributed to study drug in a participant who received study drug. AEs included both serious and non-serious adverse events.

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. 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 were events between first dose of study drug and up to Week 78 that were absent before treatment or that worsened relative to pre-treatment state. Treatment-related TEAE was any untoward medical occurrence attributed to study drug in a participant who received study drug. AEs included both serious and non-serious adverse events.

AEs were graded in accordance with National Cancer Institute (NCI) Common Terminology Criteria for AEs (CTCAE) Version 4.03 as Grades 1= mild, Grade 2= moderate, Grade 3= severe, Grade 4= life threatening AEs and Grade 5= death related to AE. AEs of Grade 3 and higher severity are reported in this outcome measure.

AEs were graded in accordance with National Cancer Institute (NCI) Common Terminology Criteria for AEs (CTCAE) Version 4.03 as Grades 1= mild, Grade 2= moderate, Grade 3= severe, Grade 4= life threatening AEs and Grade 5= death related to AE. AEs of Grade 3 and higher severity are reported in this outcome measure.

AEs were graded in accordance with National Cancer Institute (NCI) Common Terminology Criteria for AEs (CTCAE) Version 4.03 as Grades 1= mild, Grade 2= moderate, Grade 3= severe, Grade 4= life threatening AEs and Grade 5= death related to AE. AEs of Grade 3 and higher severity are reported in this outcome measure.

Criteria for abnormality:hematology: hemoglobin, hematocrit, red blood cell count, lymphocytes, neutrophils: <0.8*lower limit of normal (LLN); platelets: >1.75*upper limit of normal (ULN); white blood cell count: <0.6*LLN; basophils, eosinophils, monocytes: >1.2*ULN. liver function: bilirubin: >1.5*ULN; aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase: >3.0*ULN; protein, albumin: <0.8*LLN></0>1.2*ULN; renal function:blood urea nitrogen,creatinine: >1.3*ULN; uric acid: >1.2*ULN; electrolytes: sodium, potassium, chloride, calcium, bicarbonate: <0.9*LLN,>1.1*ULN; urinalysis: pH<4.5, >8; glucose, protein, blood, ketones, urobilinogen, bilirubin, nitrite; Other(glucose: <0.6*LLN,>1.5*ULN). Participants with any laboratory abnormality in Period 1 were reported in this outcome measure.

Criteria for abnormality:hematology: hemoglobin, hematocrit, red blood cell count, lymphocytes, neutrophils: <0.8*lower limit of normal (LLN); platelets: >1.75*upper limit of normal (ULN); white blood cell count: <0.6*LLN; basophils, eosinophils, monocytes: >1.2*ULN. liver function: bilirubin: >1.5*ULN; aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase: >3.0*ULN; protein, albumin: <0.8*LLN></0>1.2*ULN; renal function:blood urea nitrogen,creatinine: >1.3*ULN; uric acid: >1.2*ULN; electrolytes: sodium, potassium, chloride, calcium, bicarbonate: <0.9*LLN,>1.1*ULN; urinalysis: pH<4.5, >8; glucose, protein, blood, ketones, urobilinogen, bilirubin, nitrite; Other(glucose: <0.6*LLN,>1.5*ULN). Participants with any laboratory abnormality in Period 2 were reported in this outcome measure.

Criteria for abnormality:hematology: hemoglobin, hematocrit, red blood cell count, lymphocytes, neutrophils: <0.8*lower limit of normal (LLN); platelets: >1.75*upper limit of normal (ULN); white blood cell count: <0.6*LLN; basophils, eosinophils, monocytes: >1.2*ULN. liver function: bilirubin: >1.5*ULN; aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase: >3.0*ULN; protein, albumin: <0.8*LLN></0>1.2*ULN; renal function:blood urea nitrogen,creatinine: >1.3*ULN; uric acid: >1.2*ULN; electrolytes: sodium, potassium, chloride, calcium, bicarbonate: <0.9*LLN,>1.1*ULN; urinalysis: pH<4.5, >8; glucose, protein, blood, ketones, urobilinogen, bilirubin, nitrite; Other(glucose: <0.6*LLN,>1.5*ULN). Participants with any laboratory abnormality in Period 3 were reported in this outcome measure.

Tender joint count was an assessment of 68 joints (upper body, upper extremity, and lower extremity). Each joint's response to pressure/motion was assessed as: Present or Absent. Swollen joint count was an assessment of 66 joints (upper body, upper extremity, and lower extremity). Each joint was assessed for swelling as: Present or Absent.

Tender joint count was an assessment of 68 joints (upper body, upper extremity, and lower extremity). Each joint's response to pressure/motion was assessed as: Present or Absent. Swollen joint count was an assessment of 66 joints (upper body, upper extremity, and lower extremity). Each joint was assessed for swelling as: Present or Absent.

Tender joint count was an assessment of 68 joints (upper body, upper extremity, and lower extremity). Each joint's response to pressure/motion was assessed as: Present or Absent. Swollen joint count was an assessment of 66 joints (upper body, upper extremity, and lower extremity). Each joint was assessed for swelling as: Present or Absent.

PAAP: Participants assessed the severity of their arthritis pain by using a 100 mm VAS ranging from 0 (no pain) to 100 (most severe pain), which corresponded to the magnitude of their pain, where higher scores indicated more pain. PGA: Participants were asked the following question, "Considering all the ways your arthritis affects you, how are you feeling today?" and their response was recorded on a 100 mm VAS ranging from 0 (very well) to 100 (very poor), where higher scores indicated worse health condition. PGAA: Participants were assessed how their overall arthritis appears at the time of the visit. The evaluation was based on the participant's disease signs, functional capacity and physical examination, and was independent of the PAAP and PGA assessments. The physician's response was recorded using a 100 mm VAS ranging from 0 (very well) to 100 (very poor), where higher scores indicated more disease activity.

PAAP: Participants assessed the severity of their arthritis pain by using a 100 mm VAS ranging from 0 (no pain) to 100 (most severe pain), which corresponded to the magnitude of their pain, where higher scores indicated more pain. PGA: Participants were asked the following question, "Considering all the ways your arthritis affects you, how are you feeling today?" and their response was recorded on a 100 mm VAS ranging from 0 (very well) to 100 (very poor), where higher scores indicated worse health condition. PGAA: Participants were assessed how their overall arthritis appears at the time of the visit. The evaluation was based on the participant's disease signs, functional capacity and physical examination, and was independent of the PAAP and PGA assessments. The physician's response was recorded using a 100 mm VAS ranging from 0 (very well) to 100 (very poor), where higher scores indicated more disease activity.

PAAP: Participants assessed the severity of their arthritis pain by using a 100 mm VAS ranging from 0 (no pain) to 100 (most severe pain), which corresponded to the magnitude of their pain, where higher scores indicated more pain. PGA: Participants were asked the following question, "Considering all the ways your arthritis affects you, how are you feeling today?" and their response was recorded on a 100 mm VAS ranging from 0 (very well) to 100 (very poor), where higher scores indicated worse health condition. PGAA: Participants were assessed how their overall arthritis appears at the time of the visit. The evaluation was based on the participant's disease signs, functional capacity and physical examination, and was independent of the PAAP and PGA assessments. The physician's response was recorded using a 100 mm VAS ranging from 0 (very well) to 100 (very poor), where higher scores indicated more disease activity.

ADA positive results was defined as ADA titer level >=1.30 and NAb positive was defined as NAb titer level >=0.70.

ADA positive results was defined as ADA titer level >=1.30 and NAb positive was defined as NAb titer level >=0.70.

ADA positive results was defined as ADA titer level >=1.30 and NAb positive was defined as NAb titer level >=0.70.