Real Projects · Real Data · Real Results

20+ Success Stories That Built Our Reputation

From rapid diagnostics to biopharmaceuticals — see how Sekbio solved real challenges for leading companies across APAC and beyond.

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800+
Projects Completed
95%+
Success Rate
200+
Partners · 30+ Countries

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Showing 20 of 20 case studies
PharmaMedium Complexity
Shanghai, China

CHO Yield Optimization for Therapeutic Monoclonal Antibody

Challenge

Existing CHO cell line yielding only 2 g/L. Commercial viability required ≥ 5 g/L. Previous optimization attempts had failed.

6.5 g/L yield achieved 98.5% purity Delivered in 3 weeks
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IVD & DiagnosticsHigh Complexity
Singapore

5-Plex STI Panel Antibody Pair Validation for Rapid Test

Challenge

Needed validated antibody pairs for a 5-plex STI lateral flow diagnostic. Tight QC standards, 6-week commercial deadline.

5 pairs validated, 3 weeks Cross-reactivity eliminated On-time launch
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Research & AcademiaHigh Complexity
Tokyo, Japan

Anti-PD-L1 Antibody Development for Publication-Ready Research

Challenge

Custom anti-PD-L1 with specific epitope targeting required. Publication deadline in 3 months; conventional development timeline was 6 months.

3-week turnaround Publication-ready data Paper accepted
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PharmaStandard
Seoul, South Korea

HEK293 Scale-Up for Biosimilar Candidate

Challenge

Needed rapid 1 L HEK293 scale-up with <1 EU/mL endotoxin for IND-enabling studies. Timeline: 4 weeks from gene sequence.

1 g/L yield <0.5 EU/mL endotoxin IND package ready
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Biotech StartupHigh Complexity
Shenzhen, China

Bispecific Antibody Expression — From Failure to Success

Challenge

Two previous vendors failed to produce functional bispecific antibody. Aggregation >60% in all prior attempts. Series A milestone at risk.

Aggregation <5% Fully functional Series A secured
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IVD & DiagnosticsStandard
Guangzhou, China

CLIA Antibody Pair for CRP + SAA Dual-Biomarker Platform

Challenge

Required matched antibody pairs for simultaneous CRP and SAA measurement on CLIA analyzer. Sensitivity <0.1 mg/L for both targets.

LoD 0.05 mg/L No cross-reactivity NMPA submission ready
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Research & AcademiaMedium
Beijing, China

Anti-SARS-CoV-2 Nucleocapsid Antibody for Diagnostic Research

Challenge

Research lab needed high-affinity anti-NP monoclonal for ELISA and LFA development. Needed characterization data suitable for peer-reviewed publication.

KD <1 nM Full epitope mapping 2 publications cited
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Medical DevicesHigh Complexity
Osaka, Japan

Troponin I Antibody Pair for Point-of-Care Cardiac Panel

Challenge

Needed cTnI antibody pair with pg/mL sensitivity for fingerstick whole-blood format. Previous vendor pair had unacceptable cross-reactivity with skeletal troponin.

LoD 3 pg/mL Zero skeletal cross-react. CE-IVD filing supported
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Biotech StartupStandard
Sydney, Australia

Fc-Engineered Anti-VEGF Antibody for Ophthalmic Application

Challenge

Required IgG1 → IgG4 isotype switch to eliminate effector function in vitreal administration context. Needed full bioactivity confirmation post-engineering.

Isotype switch confirmed Full VEGF binding activity Preclinical study approved
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PharmaStandard
Taipei, Taiwan

Anti-IL-6R Antibody Expression & Endotoxin Removal

Challenge

IL-6R therapeutic candidate with persistent endotoxin contamination (>10 EU/mL) from prior vendor. Needed to maintain binding activity post-polishing.

<0.1 EU/mL100% activity retained
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IVD & DiagnosticsMedium
Istanbul, Turkey

MxA Antibody Pair Validation for CLIA Viral Infection Test

Challenge

Needed validated MxA antibody pair achieving 2 pg/mL sensitivity with >300× S/N dynamic range for whole-blood CLIA platform.

2 pg/mL LoDS/N >320×
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Research & AcademiaStandard
Mumbai, India

Dengue NS1 Recombinant Antigen Production for Serology Research

Challenge

Required soluble dengue NS1 antigen (all 4 serotypes) in HEK293 for cross-reactive IgG ELISA development under tight grant deadline.

4 serotypes, 2 weeks>95% purity
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PharmaHigh Complexity
Suzhou, China

Stable CHO Cell Line Development for ADC Payload Antibody

Challenge

Needed stable CHO cell line producing 3+ g/L of cysteine-engineered antibody for site-specific ADC conjugation. Transient expression insufficient.

3.8 g/L stable lineDAR 1.9 achieved
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IVD & DiagnosticsMedium
Ho Chi Minh City, Vietnam

Malaria HRP2/pLDH Rapid Test Antibody Pair Sourcing

Challenge

Local IVD manufacturer required HRP2-negative-strain-compatible antibody pairs after hrp2 deletion variants emerged in their target market.

pLDH pair validatedhrp2-deletion coverage
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Biotech StartupMedium
Seoul, South Korea

CAR-T Target Antigen (CD19) Production for In Vitro Screening

Challenge

Needed biotinylated CD19 ectodomain at 10 mg scale for CAR construct screening. Previous E. coli expression gave insoluble aggregates.

HEK293 solubleBiotinylated, 12 mg
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Medical DevicesStandard
Guangzhou, China

NT-proBNP Antibody Pair for Heart Failure POCT Strip

Challenge

Required pg/mL sensitivity NT-proBNP antibody pair stable in whole-blood matrix for LFA cardiac strip. Wide linear range (5–35,000 pg/mL) needed.

LoD 8 pg/mLLinear to 35,000 pg/mL
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PharmaStandard
Hangzhou, China

Anti-EGFR Antibody Reformulation for Improved Half-Life

Challenge

Therapeutic anti-EGFR antibody with short serum half-life due to suboptimal FcRn binding. Needed YTE mutation introduction without disrupting antigen binding.

3× half-life extensionEGFR binding maintained
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PharmaStandard
Osaka, Japan

Batch-to-Batch Consistency Program for OEM Antibody Supply

Challenge

IVD kit manufacturer needed guaranteed <5% lot-to-lot signal CV for OEM antibody supply across 12-month production period. Previous vendor at 18–25% CV.

<4.2% lot CV12-mo contract fulfilled
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IVD & DiagnosticsMedium
Nairobi, Kenya

Cholera O1 Antibody Pair for Outbreak-Response Rapid Test

Challenge

NGO partner needed cost-effective, heat-stable cholera O1 antibody pair for LFA strips deployable without cold chain in field conditions.

Stable to 45°CLoD 10⁵ CFU/mL
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4.2 mo
Avg. Time Saved Per Project
38%
Avg. Cost Reduction vs. Western CROs
95%+
First-Attempt Success Rate
12+
Industries Served

Where We Deliver the Most Impact

Pharmaceutical Development

Therapeutic antibody production has helped pharma clients reduce development timelines by 4–6 months on average, with CHO yields up to 2.4 g/L.

  • High-yield CHO / HEK293 expression
  • GMP-compatible documentation
  • Fc engineering & isotype switching
  • Scale-up strategy & transfer

Diagnostic Manufacturing

From MxA to troponin to STI panels — 30+ diagnostic antibody pairs validated across CLIA, FIA, and LFA platforms for global IVD manufacturers.

  • Multi-plex pair validation
  • Cross-reactivity elimination
  • Lot-to-lot CV < 5%
  • NMPA / CE-IVD support

Research & Academia

Publication-grade antibodies with complete characterization data — epitope mapping, SPR kinetics, and functional assay confirmation for peer-reviewed submissions.

  • Customized epitope targeting
  • SPR & BLI kinetics data
  • Research-grade purity ≥ 95%
  • Technical support for papers

Milestones in Service Excellence

2020
Founded

Sekbio Established in Shenzhen

Started with focus on recombinant antibody expression and IVD antibody pair development for CLIA and LFA platforms.

2021
Certification

ISO 13485 Certified

Achieved quality management system certification for medical device components — enabling regulatory-grade documentation for all projects.

2022
Platform

Express 3-Week Service Launched

Introduced express antibody validation with a 21-day guaranteed timeline — first in the APAC region at this specification.

2023
Scale

500+ Projects Milestone

Reached 500+ successful projects across pharma, IVD, research, and biotech sectors, maintaining 95%+ first-attempt success rate.

2024
Expansion

CE Marking & 200+ Global Partners

CE Marking obtained. Partner network expanded to 200+ IVD brands across 30+ countries, covering APAC, Europe, and North America.

2026
Today

800+ Projects & Growing

Over 800 successful projects delivered. Continuing to serve IVD and pharmaceutical clients with ISO 13485 quality and express-speed delivery.

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