Cantargia to present new data from preclinical studies with CAN04 in non-small cell lung cancer

Cantargia AB (“Cantargia”) will be presenting new data at the Protein & Antibody
Engineering Summit (“PEGS (http://www.pegsummiteurope.com/)”), an international
scientific conference to be held in Lisbon, Portugal, from October 31st to
November 4th 2016. The company will be presenting data from preclinical studies
in non-small cell lung cancer, where the product candidate CAN04, a humanised
antibody against the IL1RAP target molecule, has been investigated. The
presentation will take place on October 31st 2016.
With the ambition of developing a new cancer therapy, Cantargia has developed a
fully humanised antibody, CAN04, which binds with high affinity to Interleukin-1
Receptor Associated Protein (“IL1RAP”). The antibody blocks signalling from the
inflammatory cytokine IL-1, which in turn reduces signals that promote tumour
growth and survival. Cantargia has previously shown that antibodies against
IL1RAP can stimulate killing of tumour cells in various preclinical PDX-models
of leukemia.

In the new study Cantargia shows that high levels of IL1RAP are expressed also
in several different solid tumours, including non-small cell lung cancer. CAN04
treatment of various solid tumour cell lines with IL1RAP on the cell surface led
to a reduced secretion of the inflammatory and tumorigenic cytokines IL-6 and IL
-8. CAN04 also stimulated cells from the immune system to directly destroy these
tumour cells. In a PDX model, mice were transplanted directly with tumour cells
from a patient with non-small cell lung cancer. In this model a microenvironment
is developed in the tumour that is not obtained in classical cell line-based
models. A statistically significant treatment effect was obtained with CAN04 in
the study.

“We are very pleased to present new data on CAN04 at an important scientific
conference. In addition to the documented effect in various models of non-small
cell lung cancer, including a very aggressive PDX model, these results
constitute an important base for continued studies of CAN04 both as monotherapy
and in combination with other drugs”, Göran Forsberg, CEO, says.

The poster, The CAN04 antibody targets IL1RAP and inhibits tumor growth in a PDX
model for NSCLC, will be available at www.cantargia.com after the presentation.

For further information, please contact
Göran Forsberg, CEO
Telephone: 046-275 62 60
E-mail: goran.forsberg@cantargia.com
Certified Adviser: Sedermera Fondkommission

This constitutes information that Cantargia is required to publish under the
EU’s Market Abuse Regulation. The information was submitted for publication
through the above contact person on 20 October 2016, at 08.30.