Renal Transplantation
Conditions
Brief summary
The purpose of the study is to compare the Pharmacokinetics (PK) of Process E belatacept relative to Process C belatacept in Healthy subjects
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
1. Signed Informed Consent 2. Target population: Healthy males and females. 3. Males and females, ages 18 to 55 years, inclusive. 4. Women of child bearing potential (WOCBP) with negative serum or urine pregnancy test 5. Women must not be breastfeeding 6. Men and WOCBP must agree to follow instructions for contraception
Exclusion criteria
1. History of TB, malignancy, any other chronic or acute infecton or disease. 2. History of acute or chronic medical illness 3. Evidence of organ dysfunction or any clinically significant deviation from normal in physical examination, vital signs, ECG or clinical laboratory determinations beyond what is consistent with the target population. 4. History of allergy to belatacept or related compounds -
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Area Under the Serum Concentration-time Curve From Time Zero Extrapolated to Infinite Time (INF) of Belatacept. | Day 1 to Day 71 | (AUC\[INF\]) was derived from serum concentration versus time data and measured in nanogram hours per milliliter (ng\*h/mL). Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA) |
| Maximum Observed Serum Concentration (Cmax) of Belatacept | Day 1 to Day 71 | Cmax was derived from serum concentration versus time data. Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA). Cmax was measured in nanograms per milliliter. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Total Body Clearance (CLT) | Day 1 to Day 71 | CLT was the volume of belatacept cleared by the system, normalized by baseline body weight. Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA). CLT was measured in liters per hour. |
| Time of Maximum Observed Serum Concentration (Tmax) | Day 1 to Day 71 | Tmax was derived from serum concentration versus time data. Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA). Tmax was measured in hours (h). |
| Half Life (T-HALF) | Day 1 to Day 71 | — |
| Volume of Distribution at Steady State (Vss) | Day 1 to Day 71 | — |
| Area Under the Serum Concentration-time Curve From Time Zero to Time of the Last Quantifiable Concentration (AUC 0-T) | Day 1 to Day 71 | (AUC\[0-T\]) was derived from serum concentration versus time data and measured in nanogram hours per milliliter (ng.h/mL). Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA) |
Countries
United States
Participant flow
Pre-assignment details
491 participants were enrolled; 146 were randomized and treated. 232 participants were enrolled but not randomized because they no longer met study criteria, 1 participant withdrew consent and 112 participants were not randomized for other reasons.
Participants by arm
| Arm | Count |
|---|---|
| Process E Belatacept Active Pharmaceutical Ingredient (API) of Belatacept manufactured by Process E | 74 |
| Process C Belatacept Active Pharmaceutical Ingredient (API) of Belatacept manufactured by Process C | 72 |
| Total | 146 |
Baseline characteristics
| Characteristic | Process C Belatacept | Total | Process E Belatacept |
|---|---|---|---|
| Age, Continuous | 35.4 years STANDARD_DEVIATION 10.48 | 34.5 years STANDARD_DEVIATION 10.05 | 33.6 years STANDARD_DEVIATION 9.6 |
| Ethnicity (NIH/OMB) Hispanic or Latino | 42 Participants | 91 Participants | 49 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 30 Participants | 55 Participants | 25 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants |
| Race/Ethnicity, Customized Overall Participants American Indian or Alaskan Native | 0 Participants | 1 Participants | 1 Participants |
| Race/Ethnicity, Customized Overall Participants Asian | 1 Participants | 1 Participants | 0 Participants |
| Race/Ethnicity, Customized Overall Participants Black or African American | 14 Participants | 28 Participants | 14 Participants |
| Race/Ethnicity, Customized Overall Participants Native Hawaiian or Other Pacific Islander | 1 Participants | 1 Participants | 0 Participants |
| Race/Ethnicity, Customized Overall Participants Other | 0 Participants | 1 Participants | 1 Participants |
| Race/Ethnicity, Customized Overall Participants White | 56 Participants | 114 Participants | 58 Participants |
| Sex: Female, Male Female | 31 Participants | 68 Participants | 37 Participants |
| Sex: Female, Male Male | 41 Participants | 78 Participants | 37 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 74 | 0 / 72 |
| other Total, other adverse events | 25 / 74 | 27 / 72 |
| serious Total, serious adverse events | 0 / 74 | 1 / 72 |
Outcome results
Area Under the Serum Concentration-time Curve From Time Zero Extrapolated to Infinite Time (INF) of Belatacept.
(AUC\[INF\]) was derived from serum concentration versus time data and measured in nanogram hours per milliliter (ng\*h/mL). Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA)
Time frame: Day 1 to Day 71
Population: All randomized, treated participants with evaluable PK data
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Process E Belatacept | Area Under the Serum Concentration-time Curve From Time Zero Extrapolated to Infinite Time (INF) of Belatacept. | 17084539 ng.h/mL | Geometric Coefficient of Variation 17 |
| Process C Belatacept | Area Under the Serum Concentration-time Curve From Time Zero Extrapolated to Infinite Time (INF) of Belatacept. | 21579398 ng.h/mL | Geometric Coefficient of Variation 17 |
Maximum Observed Serum Concentration (Cmax) of Belatacept
Cmax was derived from serum concentration versus time data. Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA). Cmax was measured in nanograms per milliliter.
Time frame: Day 1 to Day 71
Population: All randomized, treated participants with evaluable PK data
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Process E Belatacept | Maximum Observed Serum Concentration (Cmax) of Belatacept | 269305 ng/mL | Geometric Coefficient of Variation 16 |
| Process C Belatacept | Maximum Observed Serum Concentration (Cmax) of Belatacept | 255169 ng/mL | Geometric Coefficient of Variation 16 |
Area Under the Serum Concentration-time Curve From Time Zero to Time of the Last Quantifiable Concentration (AUC 0-T)
(AUC\[0-T\]) was derived from serum concentration versus time data and measured in nanogram hours per milliliter (ng.h/mL). Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA)
Time frame: Day 1 to Day 71
Population: All randomized, treated participants with evaluable PK data
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Process E Belatacept | Area Under the Serum Concentration-time Curve From Time Zero to Time of the Last Quantifiable Concentration (AUC 0-T) | 17020284 ng.h/mL | Geometric Coefficient of Variation 16 |
| Process C Belatacept | Area Under the Serum Concentration-time Curve From Time Zero to Time of the Last Quantifiable Concentration (AUC 0-T) | 21422168 ng.h/mL | Geometric Coefficient of Variation 16 |
Half Life (T-HALF)
Time frame: Day 1 to Day 71
Population: All randomized, treated participants with evaluable PK data
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Process E Belatacept | Half Life (T-HALF) | 160 h | Standard Deviation 39.5 |
| Process C Belatacept | Half Life (T-HALF) | 183 h | Standard Deviation 47.7 |
Time of Maximum Observed Serum Concentration (Tmax)
Tmax was derived from serum concentration versus time data. Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA). Tmax was measured in hours (h).
Time frame: Day 1 to Day 71
Population: All randomized, treated participants with evaluable PK data
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Process E Belatacept | Time of Maximum Observed Serum Concentration (Tmax) | 1.00 h |
| Process C Belatacept | Time of Maximum Observed Serum Concentration (Tmax) | 1.00 h |
Total Body Clearance (CLT)
CLT was the volume of belatacept cleared by the system, normalized by baseline body weight. Serum samples were analyzed for belatacept by a validated enzyme-linked immunosorbent assay (ELISA). CLT was measured in liters per hour.
Time frame: Day 1 to Day 71
Population: All randomized, treated participants with evaluable PK data
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Process E Belatacept | Total Body Clearance (CLT) | 0.0433 L/h | Geometric Coefficient of Variation 18 |
| Process C Belatacept | Total Body Clearance (CLT) | 0.0343 L/h | Geometric Coefficient of Variation 19 |
Volume of Distribution at Steady State (Vss)
Time frame: Day 1 to Day 71
Population: All randomized, treated participants with evaluable PK data
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Process E Belatacept | Volume of Distribution at Steady State (Vss) | 7.89 L | Geometric Coefficient of Variation 15 |
| Process C Belatacept | Volume of Distribution at Steady State (Vss) | 7.35 L | Geometric Coefficient of Variation 19 |