About us

Alphabodies are transformative biotherapeutics designed and created to address intracellular and other important disease targets that are “undruggable” by existing therapeutics.

Complix’s goal is to use its unique Alphabody technology to develop transformative biotherapeutics for applications in viral diseases, oncology, immuno-oncology and autoimmunity and deliver value for its stakeholders in a large therapeutic area with high unmet medical need.

The Company is developing Cell Penetrating Alphabodies (CPABs) that can address disease targets present in the cytosol or in the nucleus of human cells and playing an important role in cancer development and progression, or in regulation of the immune system. CPABs act with great precision and high affinity on targets that are considered “intractable” by current drug formats, such as antibodies or small chemicals.

As a pioneer in intracellular targeting, Complix aims to develop a collection of first-in-class therapeutics with the potential to cure severe diseases with high unmet medical need.

CPABs are biologicals that combine the benefits of antibodies, including high specificity and potency, with those of small molecules, such as cell penetration and high stability.

Each CPAB is a small alpha-helical protein that contains a specifically engineered binding domain. By modifying the amino acid sequence in the binding domain of the CPAB, Complix researchers can design CPABs against a broad diversity of disease targets with exquisite precision and potency. In particular, CPABs are highly suited to act on intractable targets that are promoting abnormal cell growth in cancer or regulating growth or differentiation in cells of the immune system.

Pre-clinical proof of concept data has demonstrated that CPABs engage specifically with such targets and cause a therapeutic effect in animal models.

Complix has also recently started an anti-Covid-19 drug discovery campaign that builds on its vast experience in the design of anti-viral compounds. The program is designed to create Alphabodies targeting the highly conserved Covid-19 fusion machinery, and hence are expected to exhibit less sensitivity to resistance development. Complix believes that its Covid-19 program holds the promise of yielding broadly cross-reactive anti-viral compounds with both prophylactic and therapeutic efficacy against SARS-CoV-2 (the virus causing the current COVID-19 pandemic) as well as future emerging coronavirus variants or mutants.

Complix is led by an experienced management team with a track record of success in the biotech industry and is backed by a syndicate of experienced life sciences investors, through which it has raised over €30 million to date.

Complix Cell Penetrating Alphabodies

A new revolutionary class of therapeutics targeting intracellular targets