Safety, Tolerability, Pharmacodynamic Effects and Preliminary Evidence for Efficacy of the Anti-Hypertension Vaccine CYT006-AngQb
This is a multi-center, randomized, placebo-controlled, time-lagged, parallel-group study in healthy and hypertensive subjects to evaluate safety and tolerability of the vaccine CYT006-AngQb. The trial is double-blind for active vs. placebo within each treatment arm, but open with respect to AngQb dose escalation.
In the first arm, 16 healthy normotensive volunteers are treated with a one dose regimen consisting of a single s.c. injection of 100µg of AngQb or placebo. Upon satisfying safety and tolerability profile, as judged by the independent safety monitoring board, arm two is enrolled.
In arm two 36 patients with mild to moderate hypertension receive three s.c. injections of 100µg CYT006-AngQb (24 patients) or placebo (12 patients). The second and third injections are given 4 and 12 weeks after the first injection, respectively. Upon satisfying safety and tolerability profile, as judged by the independent safety monitoring board, arm three is enrolled.
In arm three 36 patients with mild to moderate hypertension receive three s.c. injections of 300µg CYT006-AngQb (24 patients) or placebo (12 patients). The second and third injections are given 4 and 12 weeks after the first injection, respectively.
The primary objective of the trial is to evaluate safety / tolerability of 3 dose regimens of CYT006-AngQb in healthy volunteers and patients with mild to moderate essential hypertension. Secondary objectives include the assessment of pharmacodynamic effects and their dose-response (immunogenicity and biomarkers of the renin-angiotensin system), and the exploration of clinical efficacy (effects on systolic and diastolic blood pressure)
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
|Study Start Date:||November 2004|
|Study Completion Date:||April 2007|
|Primary Completion Date:||September 2006 (Final data collection date for primary outcome measure)|
|Experimental: 100 mcg CYT006-AngQb Healthy Volunteers||Biological: CYT006-AngQb|
|Experimental: 100 mcg CYT006-AngQb Hypertensives||Biological: CYT006-AngQb|
|Experimental: 300 mcg CYT006-AngQb Hypertensives||Biological: CYT006-AngQb|
|Placebo Comparator: Placebo Healthy Volunteers|
|Placebo Comparator: Placebo Hypertensives|