Safety of Cat-PAD in Cat Allergic Subjects
Cat allergy is an increasingly prevalent condition, affecting 10-15% of patients with allergic rhinoconjunctivitis and/or asthma. Cat-PAD is a novel, synthetic, allergen-derived peptide desensitising vaccine, currently being developed for the treatment of cat allergy. This study will investigate the safety of Cat-PAD administered as increasing single doses.
This study is designed as a two centre, randomised, placebo-controlled, escalating single dose study in up to 88 cat allergic subjects. Cohorts of 8 subjects will be enrolled. Each cohort will undergo screening 14-28 days before treatment and a baseline challenge for EPSR and LPSR to cat allergen injected into the arm 7 days before treatment. On the treatment day, subjects will be injected either intradermally (into the skin) or subcutaneously (under the skin) with a single dose of Cat-PAD or placebo and safety observations made for 8 h. After 21 days, subjects will again have cat allergen injected into the arm and the EPSR and LPSR will be recorded. The dose of Cat-PAD will be increased in successive cohorts, provided that the previous dose tested was well tolerated.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00685711
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
A medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder.
A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME.
A vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. The causative mechanism may be allergy, infection, or stress.
The main glucocorticoid secreted by the ADRENAL CORTEX. Its synthetic counterpart is used, either as an injection or topically, in the treatment of inflammation, allergy, collagen diseases, asthma, adrenocortical deficiency, shock, and some neoplastic conditions.
Disorder characterized by a vasculitic syndrome associated with exposure to an antigen such as a drug, infectious agent, or other foreign or endogenous substance. Its pathophysiology includes immune complex deposition and a wide range of skin lesions. Hypersensitivity or allergy is present in some but not all cases.
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