Extension Study Of Stage 1 Subjects Of Study A3921009 For The Prevention Of Acute Rejection In Kidney Transplant Patient

GFR: an index of kidney function. GFR described the flow rate of filtered fluid through the kidney. GFR was measured directly or estimated using established formulas. GFR was estimated by creatinine clearance (CLcr; in mL/min]) using Nankivell equation. CLcr by Nankivell equation= (6.7 per serum creatinine [in millimoles per liter (mmol/L)]) plus (0.25*body weight [in kilograms (kg)]) minus (0.5*serum urea [mmol/dL, where 1 mg/dL BUN=0.36 mmol/L urea]) minus (100 per height [in meters] square) plus (35 for male/25 for female). A normal GFR is >90 mL/min, although children and older people usually have a lower GFR. Lower values indicated poor kidney function. A GFR <15 mL/min indicated kidney failure.

GFR: an index of kidney function. GFR described the flow rate of filtered fluid through the kidney. GFR was calculated using Cockcroft-Gault equation. GFR by Cockcroft-Gault equation= body weight (kg)*(140 minus age in years) divided by (72*serum creatinine [mg/dL]). For females value obtained was multiplied by 0.85. A normal GFR is >90 mL/min, although children and older people usually have a lower GFR. Lower values indicated poor kidney function. A GFR <15 mL/min indicated kidney failure.

Kaplan-Meier analysis of percentage of participants with NODM-2 by time to NODM-2 within 96 months post-transplant. Time was defined from the date of first dose of study drug in Study A3921009 to the date of first occurrence of the event, censored at the day of the last visit or Day 2980 (the maximum scheduled day for follow-up 98 month), whichever comes earlier. NODM-2 was defined as an event experienced by a transplanted subject who meets any of the following criteria: (a) NODM-1; or (b) Symptoms of diabetes plus 2 casual serum glucose levels ≥200 mg/dL separated by at least approximately 24 hours. Casual was defined as any time of day without regard to time since last meal; or (c) Fasting serum glucose ≥126 mg/dL on 2 different occasions separated by at least approximately 24 hours. Fasting was defined as no caloric intake for at least 8 hours; or (d) 2-hour serum glucose ≥200 mg/dL during an OGTT (Oral Glucose Tolerance Test).

Calculated as number of copies per 500 mg DNA.

EBV DNA PCR categories included 0, 1-50, 51-100, 101-1000, and >1000 copies/PCR.

Calculated as number of copies per PCR. Per protocol, BKV DNA PCR was performed on tofacitinib-treated participants only.

Cutoff categories for BKV DNA were 0-199 and ≥200 copies/PCR. Per protocol, BKV DNA PCR was performed on tofacitinib-treated participants only.

Kaplan-Meier analysis of percentage of participants with CMV disease within 96 months post-transplant. Time was defined from the date of first dose of study drug in Study A3921009 to the date of first occurrence of the event, censored at the day of the last visit or Day 2980 (the maximum scheduled day for follow-up 98 month), whichever comes earlier. CMV disease was an adverse event associated with the preferred term 'CMV infection'.

Kaplan-Meier analysis of percentage of participants with first BPCAN by time to first BPCAN within 96 months post-transplant. BPCAN was defined as chronic allograft nephropathy (Category 5 of the Banff Classification), based on the assessment of the renal allograft biopsy by a central, blinded pathologist. Time was defined from the date of first dose of study drug in Study A3921009 to the date of first occurrence of the event, censored at the day of the last visit or Day 2980 (the maximum scheduled day for follow-up 98 month), whichever comes earlier. Includes BPCAN diagnosed on biopsies done for cause and ready by the central pathologist.

Antibody-mediated rejection is defined as Category 2 and BPAR is defined as Category 4 of the Banff Classification, based on the assessment of the renal allograft biopsy by a central, blinded pathologist. Acute humoral rejection was categorized as Grades I, II, III and acute/active cellular rejection was categorized as Grades IA, IB, IIA, IIB, and III. Only participants with first BPAR were included.

Ordered categorical severity of first BPCAN was classified according to the Banff Classification. Grade I: mild, grade II: moderate and grade III: severe interstitial fibrosis and tubular atrophy/loss. (Racusen et al: The Banff classification, 1999).

Kaplan-Meier analysis of percentage of participants with efficacy failure by time to first efficacy failure within 96 months post-transplant. Time was defined from the date of first dose of study drug in Study A3921009 to the date of first occurrence of the event, censored at the day of the last visit or Day 2980 (the maximum scheduled day for follow-up 98 month), whichever comes earlier. Efficacy failure was defined as first occurrence of BPAR, death, or graft loss.

Kaplan-Meier analysis of percentage of participants with graft survival by time to graft loss within 96 months post-transplant. Time was defined from the date of first dose of study drug in Study A3921009 to the date of first occurrence of the event, censored at the day of the last visit or Day 2980 (the maximum scheduled day for follow-up 98 month), whichever comes earlier. Graft loss was defined as graft nephrectomy, retransplantation, return to dialysis for ≥6 consecutive weeks, or death.

Kaplan-Meier analysis of percentage of participants surviving by time to event (death) within 96 months post-transplant. Time was defined from the date of first dose of study drug in Study A3921009 to the date of first occurrence of the event, censored at the day of the last visit or Day 2980 (the maximum scheduled day for follow-up 98 month), whichever comes earlier.

Kaplan-Meier analysis of percentage of participants with rejection by time to rejection within 96 months post-transplant. Time was defined from the date of first dose of study drug in Study A3921009 to the date of first occurrence of the event, censored at the day of the last visit or Day 2980 (the maximum scheduled day for follow-up 98 month), whichever comes earlier. Rejection was defined as first occurrence of BPAR, antibody-mediated rejection or suspicious for acute rejection. This included biopsies read by the central pathologist.

HOMA-%B = (20 times [*] fasting serum insulin) divided by (/) (fasting serum glucose minus [-] 3.5). HOMA-%B was only performed in participants who were non-diabetic prior to kidney transplantation and who did not require treatment with oral hypoglycemic agents, anti-diabetic agents, and/or insulin prior to the time of measurements.

Measured only in participants who were non-diabetic prior to kidney transplantation and who did not require treatment with oral hypoglycemic agents, anti-diabetic agents, and/or insulin prior to the time of measurement.

Only performed in participants who were non-diabetic prior to kidney transplantation and who did not require treatment with oral hypoglycemic agents, anti-diabetic agents, and/or insulin.

The OGTT was performed only in participants who were non-diabetic prior to kidney transplantation and who did not require treatment with oral hypoglycemic agents, anti-diabetic agents, and/or insulin.

HOMA-IR=fasting serum insulin*fasting serum glucose/22.5. Measurement only performed in participants who were non-diabetic prior to kidney transplantation and who do not require treatment with oral hypoglycemic agents, anti diabetic agents, and/or insulin prior to the time of measurement.

The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, 36-Item Short-Form Health Survey (SF-36) is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. These 8 aspects can also be summarized as physical and mental component scores (PCS and MCS). Total of 11 variables were analyzed (8 subscales, 2 composite subscales and Question 2 "how would you rate your health in general now?" (range 1= better, 5= worst). The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning).

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. These 8 aspects can also be summarized as PCS and MCS. Total of 11 variables were analyzed (8 subscales, 2 composite subscales and Question 2 "how would you rate your health in general now?" (range 1= better, 5= worst). The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Negative change from baseline represented improvement.

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. These 8 aspects can also be summarized as PCS and MCS. Total of 11 variables were analyzed (8 subscales, 2 composite subscales and Question 2 "how would you rate your health in general now?" (range 1= better, 5= worst). The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning).

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. These 8 aspects can also be summarized as PCS and MCS. Total of 11 variables were analyzed (8 subscales, 2 composite subscales and Question 2 "how would you rate your health in general now?" (range 1= better, 5= worst). The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Negative change from baseline represented improvement.

ESRD-SCL: 43-item, disease-specific, self-administered questionnaire. Participants' rated question "At the moment, how much do you suffer?" for each item on 5-point scale, ranged from 0 (not at all) to 4 (extremely). Consisted of 6 subscales: cardiac and renal dysfunction (Range, 0-28), increased growth of gum and hair (Range, 0-20), limited cognitive capacity (Range, 0-32), limited physical capacity (Range, 0-40), side effects (SEs) of corticosteroids (Range, 0-20), transplantation associated psychological distress (TAPD; Range, 0-32); higher scores=greater dysfunction for each subscale. Total score: 0-172, higher scores=greater dysfunction.

ESRD-SCL: 43-item, disease-specific, self-administered questionnaire. Participants' rated question "At the moment, how much do you suffer?" for each item on 5-point scale, ranged from 0 (not at all) to 4 (extremely). Consisted of 6 subscales: cardiac and renal dysfunction (Range, 0-28), increased growth of gum and hair (Range, 0-20), limited cognitive capacity (Range, 0-32), limited physical capacity (Range, 0-40), SEs of corticosteroids (Range, 0-20),TAPD (Range, 0-32); higher scores=greater dysfunction for each subscale. Total score: 0-172, higher scores=greater dysfunction.

HCRU assessed healthcare usage during previous 3 months for direct or indirect medical cost domains. Any number of events including visits to doctor or other healthcare professionals (HCP), non-medical practitioner, hospital ER treatment, hospitalizations, number of surgeries, diagnostic tests, and devices/aids used were reported.