Ablynx announced today that it has initiated a double-blind, randomized, placebo-controlled multiple dose Phase Ib study for its novel anti-thrombotic that selectively targets von Willebrand (vWF) factor

GHENT, Belgium | May 28, 2008 | Ablynx [Euronext Brussels: ABLX], a pioneer in the discovery and development of Nanobodies®, a novel class of antibody-derived therapeutic proteins, announced today that it has initiated a double-blind, randomized, placebo-controlled multiple dose Phase Ib study for its novel anti-thrombotic that selectively targets von Willebrand (vWF) factor. The study is being conducted in patients with stable angina undergoing percutaneous coronary intervention (PCI). The Company also provides today its first business update in compliance with the EU transparency directive summarising material events and Ablynx’s financial position for the first quarter of 2008.

"Based on the success of the Phase Ia study announced in December 2007, we are delighted to have advanced ALX-0081 directly into patients as opposed to needing to carry out a multiple-dose Phase I study in healthy volunteers", said Dr Edwin Moses, Chief Executive Officer and Chairman.

The objectives of the Phase Ib study are to determine safety and tolerance when adding ALX-0081 to a standard anti-thrombotic regimen in patients undergoing PCI and to document biological and clinical response to the therapy. It is intended to recruit up to 64 patients with stable angina for this study.

Dosing regimes relevant for the treatment of acute coronary syndrome (ACS) patients will be evaluated in this multiple dose study, based on the pharmacokinetic, pharmacodynamic and safety data obtained from the first study, in order to establish the biologically effective dose for ALX-0081.

Ablynx is also expanding its anti-thrombotic portfolio by developing ALX-0681, also targeting vWF, a subcutaneously administered Nanobody® designed to access additional patient populations.

Business Update

Revenues increased for the first quarter by 53% to EUR 3.3 million compared with the same period in 2007 (2007: EUR 2.1 million). Expenses increased by 57% to EUR 7.9 million (2007: EUR 5 million). This resulted in a net loss for the first quarter of 2008 of EUR 3.3 million (2007: EUR 2.7 million). The Company’s cash and cash equivalents were EUR 121.2 million (2007: EUR 22.6 million) at 31 March 2008.

SOURCE: Ablynx