Table 2.
Summary of select physicochemical attribute results from the analytical similarity assessment of ABP 654 and ustekinumab (US and EU)
| Analytical testing/attributes | ABP 654 [range (n)] | Ustekinumab US [range (n)] | Ustekinumab EU [range (n)] |
|---|---|---|---|
| Glycan map (%)a | |||
|
High mannose Sialylation Afucosylation β-Galactosylation α-Galactosylation |
2.0–3.7 (22) 22.3–29.5 (22) 1.2–2.2 (22) 54.1–58.8 (22) NA |
0.7–1.8 (27) 8.5–24.8 (27) 3.7–4.8 (27) 19.2–56.5 (27) 0.4–4.9 (27) |
0.7–1.2 (40) 16.7–26.4 (40) 3.2–5.1 (40) 47.9–54.1 (40) 1.3–4.9 (40) |
| FTIR/spectral similarity (%)b | |||
|
US RP as standard EU RP as standard |
98.47–99.96 (6) 99.18–99.94 (6) |
98.69–100.00 (6) 98.59–99.96 (6) |
98.59–99.96 (6) 99.20–100.00 (6) |
| Near UV-CD/spectral similarity (%)b | |||
|
US RP as standard EU RP as standard |
97.21–98.52 (6) 97.00–98.84 (6) |
97.19–100.00 (6) 96.96–98.53 (6) |
96.94–98.53 (6) 95.95–100.00 (6) |
| DSC (°C)b | |||
|
Tm1 Tm2 |
75.1–75.2 (6) 84.5–84.6 (6) |
75.1–75.2 (6) 84.3–84.4 (6) |
75.1–75.2 (6) 84.4–84.5 (6) |
| Size variants by SE-UHPLC (%)b,c | |||
| HMW | 0.5–0.8 (22) | 0.3–0.5 (22) | 0.3–0.4 (33) |
| Size variants by rCE-SDSb | |||
|
Heavy chain + light chainc Fragmentsc Non-glycosylated heavy chain |
97.8–98.8 (22) 0.4–0.9 (22) 0.4–0.5 (22) |
98.6–99.3 (22) 0.2–0.7 (22) 0.2–0.3 (22) |
98.3–99.3 (33) 0.2–0.7 (33) 0.2–0.3 (33) |
| Size variants by nrCE-SDSb,c | |||
|
Main peak Pre-peaks |
96.4–97.8 (22) 2.0–3.4 (22) |
98.3–99.0 (22) 1.0–1.6 (22) |
98.0–98.8 (33) 1.2–1.7 (33) |
| Charge variants by CEX-HPLCb | |||
|
Acidic peaks Main peak Basic peaks |
46.3–56.4 (22) 41.2–47.2 (22) 2.3–6.5 (22) |
14.8–27.5 (22) 30.1–47.6 (22) 34.3–46.3 (22) |
23.0–27.0 (33) 28.7–42.0 (33) 34.1–46.3 (33) |
| AUC-SV monomer (%)b | 98.1–99.4 (6) | 98.5–99.6 (6) | 98.8–99.5 (6) |
| SE-HPLC–LS MW (kDa)b | |||
|
Monomer HMW |
144–147 (6) 282–312 (6) |
144–147 (6) 286–312 (6) |
144–147 (6) 282–340 (6) |
AUC-SV analytical ultracentrifugation sedimentation velocity, CEX-HPLC cation exchange high-performance liquid chromatography, DSC differential scanning calorimetry, FTIR Fourier-transform infrared spectroscopy, HMW high molecular weight, MW molecular weight, n number of lots tested, NA not available, nrCE-SDS non-reduced capillary electrophoresis—sodium dodecyl sulfate, PFS prefilled syringe, Tm thermal transition temperature, rCE-SDS reduced capillary electrophoresis—sodium dodecyl sulfate, RP reference product, SE-UHPLC size-exclusion ultra-high-performance liquid chromatography, SE-HPLC–LS size exclusion high-performance liquid chromatography with light scattering, ustekinumab (EU) European Union-authorized ustekinumab, UV-CD ultraviolet circular dichroism, ustekinumab (US) United States Food and Drug Administration-licensed ustekinumab
a130 mg vial results included with PFS and 45 mg vial ustekinumab results
bPFS, 45 mg vial, and/or drug substance
cAge-adjusted