Delving into the Latest Updates on Antikor Biopharma Ltd. with Synapse

Overview

Basic Info

Introduction

Antikor Biopharma Ltd. is a company that specializes in creating innovative photodynamic therapeutic agents that are biologically targeted. They utilize technologies such as OptiLink, MRI contrast agents and imaging, and Antibody-Drug Conjugates. The company was established in 2001 by Lionel Robert Milgrom, David Phillips, Mahendra Deonarain, and Gokhan Yahioglu and is based in Stevenage, UK.

Tags

Neoplasms

Digestive System Disorders

Endocrinology and Metabolic Disease

Antibody Fragment-Drug Conjugates (FDCs)

Disease domain score

A glimpse into the focused therapeutic areas

Technology Platform

Most used technologies in drug development

Targets

Most frequently developed targets

Disease Domain	Count

Neoplasms	2
Endocrinology and Metabolic Disease	1

Top 5 Drug Type	Count

Antibody Fragment-Drug Conjugates (FDCs)	2

Top 5 Target	Count

HER2(Receptor tyrosine-protein kinase erbB-2)	1
HER2 x Tubulin	1

Author: Richter, Sandy ; Vagnoni, Alessio ; Joshi, Parth P. ; Mitchell, Jacqueline C. ; Ng, Kristal ; Rhymes, Elena R. ; Sleigh, James N. ; Mattedi, Francesca ; Darabán, István L. ; Steinmark, I. Emilie ; Suhling, Klaus ; Yahioglu, Gokhan ; Annuario, Emily ; Schiavo, Giampietro ; Awale, Shirwa ; Ivanova, Iveta

AbstractMitochondria are dynamic bioenergetic hubs that become compromised with age. In neurons, declining mitochondrial axonal transport has been associated with reduced cellular health. However, it is still unclear to what extent the decline of mitochondrial transport and function observed during ageing are coupled, and if somal and axonal mitochondria display compartment‐specific features that make them more susceptible to the ageing process. It is also not known whether the biophysical state of the cytoplasm, thought to affect many cellular functions, changes with age to impact mitochondrial trafficking and homeostasis. Focusing on the mouse peripheral nervous system, we show that age‐dependent decline in mitochondrial trafficking is accompanied by reduction of mitochondrial membrane potential and intramitochondrial viscosity, but not calcium buffering, in both somal and axonal mitochondria. Intriguingly, we observe a specific increase in cytoplasmic viscosity in the neuronal cell body, where mitochondria are most polarised, which correlates with decreased cytoplasmic diffusiveness. Increasing cytoplasmic crowding in the somatic compartment of DRG neurons grown in microfluidic chambers reduces mitochondrial axonal trafficking, suggesting a mechanistic link between the regulation of cytoplasmic viscosity and mitochondrial dynamics. Our work provides a reference for studying the relationship between neuronal mitochondrial homeostasis and the viscoelasticity of the cytoplasm in a compartment‐dependent manner during ageing.

04 Apr 2023·Cancer Research

Abstract 1530: Gastric cancerantibody fragment drug-conjugates (FDCs): Applying a successful concept to solid tumours

Author: Ness, Sam ; Desmond, Howard ; Yahioglu, Gokhan ; Stamati, Ioanna ; Perez-Castro, Isabel ; Deonarain, Mahendra P. ; Davies, Lowri ; Ngiam, Malcolm ; Edwards, Bryan ; Diez-Posada, Soraya ; Xue, Quinn ; Pomowski, Anja ; Bouche, Laura ; Yap, Jeaniffer

AbstractAntibody Drug Conjugates (ADCs) have failed to deliver the successes seen in breast and urological tumours in Gastro-intestinal tumours such as stomach, colorectal and pancreatic due to 3 critical limitations: Low potency, ineffective solid-tumour penetration and poor tolerability. Approaches utilizing full-length Immunoglobulins dominate the industry, however, antibody fragments (e.g. single-chain Fvs-scFvs), which have many advantages including rapid tumour penetration, faster clearance, inexpensive manufacture, have been technologically challenging to apply in oncology. Our novel approach enables scFvs to have a high Drug:Antibody loading ratio (DAR) whilst retaining effective binding and other favourable biophysical properties, leading to a new product class tailored for solid tumours.Antikor has two FDC products in development for solid tumours, notably gastric: anti-HER2 FDC (ANT-043) and a second target (ANT-045, to be disclosed). ANT-043 has pM potencies in a range of HER2-expressing cell-lines, including trastuzumab-resistant models, excellent tumour ablation effects in breast, ovarian and gastric cancer xenograft models and superior tolerability compared to an ADC in rat toxicology studies at a dose of 1mg/kg/weekly. Quantitative payload tumour uptake and fluorescent immuno-histological studies demonstrate superior solid tumour penetration across the entire tumour and diffusion from blood vessels. In collaboration with our partners, Essex Biotechnology PLC, Antikor is taking ANT-043 into development. ANT-045, which emerged from Antikor’s proprietary FDC ‘discovery engine’, is progressing towards IND-filing and updated data will illustrate how ANT-045 could have a broader patient benefit in gastro-intestinal cancers. ANT-045 has excellent in vitro cell-kill potency (pM IC50s) and excellent stability and superior in vivo tumour cure efficacy, compared to a leading clinical stage benchmark ADC. This presentation will focus on Antikor’s FDC discovery platform (stable high-DAR scFv-display libraries, tailored linker-payloads and design features) that has the potential to generate first-in-class products for difficult to treat solid tumours for patient benefit and promising to succeed where ADCs have failed to make an impact.Citation Format: Mahendra P. Deonarain, Gokhan Yahioglu, Ioanna Stamati, Soraya Diez-Posada, Bryan Edwards, Anja Pomowski, Isabel Perez-Castro, Sam Ness, Laura Bouche, Jeaniffer Yap, Howard Desmond, Lowri Davies, Malcolm Ngiam, Quinn Xue. Gastric cancerantibody fragment drug-conjugates (FDCs): Applying a successful concept to solid tumours [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 1530.

15 Jun 2022·Cancer Research

Abstract 1763: Gastric cancer antibody fragment drug-conjugates (FDCs): Succeeding in solid tumors where ADCs fail

Author: Edwards, Bryan ; Ngiam, Malcolm ; Bouche, Laura ; Stewart, Ashleigh ; Yahioglu, Gokhan ; Perez-Castro, Isabel ; Maciuszek, Monika ; Diez-Posada, Soraya ; Stamati, Ioanna ; Pomowski, Anja ; Xue, Quinn ; Deonarain, Mahendra P. ; Ness, Sam

AbstractAntibody Drug Conjugates (ADCs) are failing due to 3 critical limitations: Low potency, ineffective solid-tumor penetration and poor tolerability. The industry is full of approaches where full-length Immunoglobulins have been engineered to carry defined numbers of payloads with higher-loadings of less potent payloads appearing to be well-tolerated. However, antibody fragments (e.g. single-chain Fcs-scFvs), which have many advantages including rapid tumor penetration, faster clearance, inexpensive manufacture, have been technologically challenging to apply in oncology. Our novel approach enables scFvs to have a high Drug:Antibody loading ratio (DAR) whilst retaining effective binding and other favorable biophysical properties, leading to a new product class tailored for solid tumors. Antikor has two FDC products in development for solid tumors, notably gastric: anti-HER2 FDC (ANT-043) and a second target (ANT-045) which will be disclosed during this presentation. ANT-043 has pM potencies in a range of HER2-expressing cell-lines, including trastuzumab-resistant models, excellent tumor ablation effects in breast, ovarian and gastric cancer xenograft models and superior tolerability compared to an ADC in rat toxicology studies at a dose of 1mg/kg/weekly. Quantitative payload tumor uptake and fluorescent immuno-histological studies demonstrate superior solid tumor penetration across the entire tumor and diffusion from blood vessels. In collaboration with our partners, Essex Biotechnology, Antikor is taking ANT-043 into IND-enabling studies for clinical development. ANT-045, which emerged from Antikor’s proprietary FDC ‘discovery engine’, is progressing towards IND-filing and updated data will illustrate how ANT-045 could have a broader patient benefit in gastro-intestinal cancers. ANT-045 has excellent in vitro cell-kill potency (pM IC50s) and excellent stability and superior in vivo tumor cure efficacy, compared to a leading clinical stage benchmark ADC. This presentation will focus on Antikor’s FDC discovery platform (stable high-DAR scFv-display libraries, tailored linker-payloads and design features) that has the potential to generate first-in-class products for difficult to treat solid tumors for patient benefit and promising to succeed where ADCs have failed to deliver.Citation Format: Mahendra P. Deonarain, Gokhan Yahioglu, Ioanna Stamati, Bryan Edwards, Soraya Diez-Posada, Isabel Perez-Castro, Anja Pomowski, Laura Bouche, Ashleigh Stewart, Monika Maciuszek, Sam Ness, Malcolm Ngiam, Quinn Xue. Gastric cancer antibody fragment drug-conjugates (FDCs): Succeeding in solid tumors where ADCs fail [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 1763.

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Pipeline

Pipeline Snapshot as of 25 Apr 2025

The statistics for drugs in the Pipeline is the current organization and its subsidiaries are counted as organizations,Early Phase 1 is incorporated into Phase 1, Phase 1/2 is incorporated into phase 2, and phase 2/3 is incorporated into phase 3

Preclinical

2

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