Hurdles facing those trying to develop new allergy vaccines have been underscored yet again by the failure of Circassia Pharmaceuticals PLC ’s potential house dust mite allergy immunotherapy in a Phase IIb field study which missed its primary endpoints, displaying instead a strong placebo effect that mirrored the biotech's previously failed cat allergy Phase III trial in June 2016.
The UK-based company says it is thus ending all anti-allergy investments to focus on its broader respiratory business, including the...








