🧬 CDMO Biopharma Contract Manufacturing

Модуль #312. CDMO Contract Development & Manufacturing Organization — план Astana Hub Biotech фасилити для monoclonal antibodies + recombinant proteins + cell-based therapies. Reference: Lonza Visp (Switzerland) 200K L bioreactors, Wuxi Biologics Wuxi China, Samsung Biologics Songdo, FUJIFILM Diosynth Texas. Mammalian cell culture CHO Chinese Hamster Ovary в bioreactors 2000-20000 L. Downstream processing protein A chromatography + viral inactivation + ultrafiltration. EU GMP Annex 1 (2022) + FDA CFR 21 + ICH Q5A/Q5B + СН РК 3.02-19.

1. Состав CDMO 2000 L bioreactor capacity

Cleanroom suite ISO 14644 class 5 (process areas) + class 7 (gowning) + class 8 (background) per EU GMP Annex 1 grade A/B/C/D;
Stainless steel bioreactor train 2000 L Sartorius Biostat STR + cell culture vessel single-use ABEC × 3 redundant;
Seed bioreactor cascade 50 L → 200 L → 500 L → 2000 L (200x scale-up factor) для inoculation;
Mammalian cell line CHO-K1 GS-CHO Lonza + reverse-genetic plasmid expression vector;
Buffer prep tanks SS 316L electropolished 2 м³ × 12 шт для phosphate / acetate / Tris / NaOH / NaCl;
Media prep — chemical defined media + filtered 0.22 мкм UF полтава Pall Fluorodyne;
Cell harvest — depth filtration Millipore Pod + centrifuge Westfalia disc-stack;
Protein A chromatography — MabSelect SuRe LX GE / Cytiva 200 L column, 80-95% recovery monoclonal antibody;
Viral inactivation low-pH 3.5 × 60 min hold tank SS 316L;
Polishing chromatography — anion + cation exchange Capto Adhere + Q Sepharose Fast Flow;
UF/DF Ultrafiltration / Diafiltration TFF tangential flow Pall Millipore Pellicon 50 м² для concentration + buffer exchange;
Final fill-finish — sterile filtration 0.22 мкм + aseptic vial filling Optima Pharma + lyophilization Telstar LyoBeta для freeze-dried;
QC lab — HPLC Agilent для purity + SDS-PAGE + ELISA + bioassay potency + endotoxin LAL Charles River + sterility USP;
Stability chamber — Memmert ICH 25 °C/60% RH long-term + 40 °C/75% RH accelerated;
Cold storage 2-8 °C + −20 °C + −80 °C ULT + LN2 для seed banks;
Validation IQ/OQ/PQ + computer system 21 CFR Part 11 + data integrity ALCOA+.

Упражнение 1 — Bioreactor scale-up

Просто увеличить объём в 10x за один шагИспользовать только batch fermentationВсе в одном bioreactor 20000 LStepwise scale-up cascade 5 L vial → 50 L → 200 L → 500 L → 2000 L cell culture per EU GMP Annex 1 + ICH Q5A: (1) каждый stage 4-7 days growth → seed next stage; (2) maintain critical parameters constant — DO 30%, pH 7.0 ± 0.1, T 37 °C ± 0.5, agitation P/V power-per-volume W/L; (3) total process 21-28 days seed to harvest; (4) cell density target 10⁷-10⁸ cells/mL в final 2000 L; (5) titer monoclonal antibody 3-5 g/L; (6) downstream protein A chromatography 80-95% recovery, polishing 50-70%, overall 50-65% recovery; (7) batch size 2000 L × 3.5 g/L × 60% = 4.2 кг finished mAb per batch; (8) annual capacity 24 batches × 4.2 kg = 100 kg mAb. EU GMP Annex 1 + ICH Q5A/Q5B/Q6B + FDA CFR 21 + ASTM E2363

Упражнение 2 — Bioreactor capacity (L)

Упражнение 3 — Капекс CDMO 2000 L

Cleanroom suite ISO 14644 cl.5+7 + GMP Annex 1 (4000 m²) = 15 млрд
Bioreactor train Sartorius Biostat STR 2000 L + cascade = 12 млрд
Downstream — chromatography Cytiva MabSelect + UF/DF Pellicon + viral inactivation = 10 млрд
Fill-finish Optima Pharma + lyophilizer Telstar = 8 млрд
QC lab HPLC Agilent + ELISA + LAL endotoxin + sterility USP = 4 млрд
Stability + cold storage ULT + LN2 = 2.5 млрд
Validation + IT 21 CFR Part 11 + проект 5% + insurance + PNR = 8.5 млрд

Упражнение 4 — Single-use vs stainless steel

Только SS 316L — старое надёжноТолько Single-use SU — никогда не CIPТолько glass bioreactorHybrid approach SU для clinical phase 1-3 + SS 316L для commercial >5000 L per BioPhorum + ISPE: (1) SU advantages — no CIP cleaning validation, fast changeover 1-2 days, lower upfront capex 30-50%, reduced cross-contamination risk; (2) SU disadvantages — single-use plastic waste 200-500 kg/batch, supply chain risk irradiated bags, higher opex consumables; (3) SS 316L advantages — economy at scale >5000 L, validated CIP/SIP cycles, lower opex long-term; (4) Single-use limit ~2000 L per vessel (mechanical stability); (5) trend — large CDMOs Lonza Visp 200K L SS, Samsung Biologics mix 12,000 L SS + 2000 L SU; (6) Single-use vendors — Sartorius Biostat STR, GE Cytiva XDR, Pall Allegro; SS vendors — Sartorius BBI, ABEC; ISPE Baseline Biomanufacturing + BioPhorum Operations + EU GMP Annex 1 + USP Class VIТолько metal Hastelloy

Нормативная база

EU GMP Annex 1 (2022)
FDA 21 CFR Parts 210/211/600
ICH Q5A/Q5B/Q5C/Q5D/Q5E/Q6B
USP <1043> Ancillary Materials
ISPE Baseline Biomanufacturing
BioPhorum Operations Group BPOG
ASTM E2363 — Bioprocess Equipment
ASME BPE Bioprocess Equipment
СН РК 3.02-19 — Лечебно-проф. учреждения