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A Double Blind, Randomized, Placebo Controlled, Parallel Group Phase IIa Study to Evaluate Safety and Tolerability, Pharmacodynamic Effects and Exploratory Efficacy of an Anti-Angiotensin II Vaccine (CYT006-AngQb) in Patients with Mild to Moderate Essential Hypertension.

A Double Blind, Randomized, Placebo Controlled, Parallel Group Phase IIa Study to Evaluate Safety and Tolerability, Pharmacodynamic Effects and Exploratory Efficacy of an Anti-Angiotensin II Vaccine (CYT006-AngQb) in Patients with Mild to Moderate Essential Hypertension.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-005843-93-DE
Enrollment
60
Registered
2007-11-16
Start date
2008-02-21
Completion date
Unknown
Last updated
2012-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mild to moderate essential hypertension MedDRA version: 9.1 Level: LLT Classification code 10020772 Term: Hypertension

Interventions

Product Name: CYT006-AngQb Pharmaceutical Form: Suspension for injection Current Sponsor code: CYT006-AngQb Concentration unit: mg/ml milligram(s)/millilitre Concentration type: equal Concentration nu

Sponsors

Cytos Biotechnology AG
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: • Patients with mild to moderate essential hypertension (Grade I and Grade II) with mean sitting office SBP =140–179 mmHg and/or mean sitting office DBP = 90 –109 mmHg on 2 consecutive visits (screening and V1). • Daytime blood pressure above threshold for definition of hypertension in the screening ABPM measurement (SBP >130 mmHg and/or DBP >85 mmHg). • Stable baseline blood pressure confirmed on 2 consecutive visits (screening and V1). (Changes 30 U/mL) or surgically sterilized, documented). • Written informed consent must be signed before any study related procedure is performed including start of a wash-out from previous antihypertensive treatment. • Patient is willing and able to comply with all trial requirements and procedures. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: • Patients with “very high added risk” according to ESH/ESC 2007 Guidelines for the Management of Arterial Hypertension, i.e. those with: - grade III hypertension (mean sitting office SBP =180mmHg and/or mean sitting DBP=110mmHg) - history or presence of established cardiovascular or renal disease: - Ischemic stroke, cerebral hemorrhage, transient ischemic attack - Myocardial infarction, angina pectoris, coronary re-vascularization, heart failure - Clinically relevant left ventricular dysfunction (NYHA class II-IV) - Peripheral artery disease - Diabetic nephropathy • Electrocardiographic confirmed left ventricular hypertrophy (Sokolow-Lyon=sum of SV1+RV5 or V6>38 mm [3.8mV] • Increased plasma creatinin (M >115µmol/l, W >107 µmol/l). • Albumin/creatinine ratio in spot urine (M ? 22mg/g, W ? 31mg/g). • Diabetes mellitus type I, history, presence or new diagnosis of diabetes mellitus type II. • Fasting plasma glucose > 5.9 mmol/l • Body mass index (BMI) > 32 • LDL cholesterol > 4.9 mmol/l • Triglycerides > 3.4 mmol/l • Postural hypotension at screening (fall of SBP from sitting to standing position >20 mmHg or DBP >10 mmHg) or clinical signs of orthostatic hypotension. • Patient requiring long-term usage of not allowed concomitant medication. For details, please refer to Section “Concomitant medication”. • Arrhythmias that would interfere with the oscilloscopic measurement of the blood pressure. • Known autoimmune disease. • Severe allergy. • Pregnancy or breastfeeding. • Women in childbearing age that are not surgically sterilized. • Patients with a history or current positive test for HIV infection, AIDS, or other immunosuppressive disorders; hepatitis B or C. • Current diagnosis or history of malignancy. • Presence of suspicious lymphadenopathy or splenomegaly on physical examination. • Drug or alcohol abuse within the past 2 years. • Presence or history of relevant cardiovascular, renal, hepatic, pulmonary, endocrine, autoimmune, neurological and psychiatric disease as judged by the investigator. • Any current or past disease or conditions (physical or mental) that would, in the opinion of the investigator, interfere with the study procedures or interpretation of the study data (e.g. workers in the night shift). • Previous participation in a clinical trial with a Qb based vaccine (CYT006-AngQb, CYT001-DerQb, CYT002-NicQb, CYT003-QbG10, CYT005-AllQbG10, CYT007-TNFQb and CYT009-GhrQb). • Use of an investigational drug within 3 months before enrolment, or planned use during the whole study period. • Possible dependency of the patient on sponsor and/or investigator. • Planned active immunization 2 weeks before or 2 weeks after any study medication vaccination. • Donation or loss =400 mL of blood within 8 weeks prior to dosing or major surgery within past 2 months.

Design outcomes

Primary

MeasureTime frame
Main Objective: • To evaluate safety and tolerability of 5 s.c. injections of 300µg CYT006-AngQb with Alhydrogel™ in patients with mild to moderate essential hypertension (hypertension Grade I and II). • To assess pharmacodynamic effects, i.e. anti-Ang II immune response and renin- angiotensin system (RAS) biomarkers. • To explore the effect on blood pressure using ABPM. ;Secondary Objective: ;Primary end point(s): Clinical Endpoints •Ambulatory blood pressure monitoring (ABPM) For a primary analysis of ABPM, daytime will be defined as the time period between 06:00 a.m. and 22:00 p.m. • Standard office sitting and standing blood pressure readings . Pharmacodynamic Endpoints • Immune response: IgG titers of antibodies specific for either angiotensin II or Qb VLP • RAS biomarkers: Immunoreactive renin, angiotensin II, andaldosterone • Excretion of aldosterone and electrolytes (Na+, K+), creatinine Pharmacogenetic Evaluation Pharmacogenetic Evaluation • Pharmacogenetic analyses Safety Evaluations • Adverse events • Body temperature • 12 lead ECG • Body weight • Standard clinical laboratory evaluations (hematology, blood chemistry and urinalysis) • Calculated glomerular filtration from serum creatinine, calculated microalbuminuria from a spot urine sample • Inspection of Injection sites • Immune complexes and ANA (antinuclear antibodies)

Countries

Germany

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026