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CD-NP in Subjects With Stable Chronic Heart Failure (CD-NP)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: February 21, 2008
Last Update Posted: September 10, 2012
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
John A. Schirger, Mayo Clinic
This human physiologic study will evaluate the effects of a new drug called CD-NP in individuals with stable chronic heart failure, with a focus on evaluating responses of the kidneys and the hormonal system.

Condition Intervention Phase
Stable Chronic Heart Failure Drug: CD-NP Drug: Placebo Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Basic Science
Official Title: A Human Physiologic Study to Evaluate the Renal and Neurohumoral Effects of a Novel Chimeric Natriuretic Peptide, CD-NP, in Subjects With Stable Chronic Heart Failure

Resource links provided by NLM:

Further study details as provided by John A. Schirger, Mayo Clinic:

Primary Outcome Measures:
  • To assess renal, neurohumoral and non-invasive hemodynamic physiologic parameters [ Time Frame: Within the first 24 to 36 hours of the study and at follow-up visits (days 9 and 30) ]

Enrollment: 19
Study Start Date: June 2008
Study Completion Date: February 2012
Primary Completion Date: February 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: CD-NP low-dose study drug Drug: CD-NP
One of two dosage levels (20 ng/kg/min and another level to be finalized) as a continuous intravenous infusion for four hours
Experimental: CD-NP high-dose study drug Drug: CD-NP
One of two dosage levels (20 ng/kg/min and another level to be finalized) as a continuous intravenous infusion for four hours
Placebo Comparator: Placebo Drug: Placebo
Dextrose 5% in water (the vehicle)

Detailed Description:
CD-NP is a novel chimeric natriuretic peptide which was created by combining the 22 amino acids of human C-type natriuretic peptide (CNP) and the 15-amino-acid C-terminus of Dendroaspis natriuretic peptide (DNP). The rationale for selecting CNP, a natriuretic peptide of endothelial cell origin, is that it exhibits predominantly venodilating effects, which may minimize systemic hypotension. Moreover, its anti-proliferative action is also a highly desirable property for novel cardiovascular drugs. However, a limitation of CNP is that it does not exert significant renal actions, whereas, DNP is potently natriuretic and diuretic. Thus, CD-NP was synthesized with the goal of combining the above complementary profiles of CNP and DNP into a single chimeric peptide.

Information from the National Library of Medicine

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Ages Eligible for Study:   21 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Male and non-pregnant female subjects, aged 21 or above, with stable chronic HF of primary cardiac etiology, resting left ventricular ejection fraction (LVEF) ≤ 40 % documented within the last 2 years, and New York Heart Association functional class I - III symptoms
  2. Be willing to provide informed consent.

Exclusion Criteria:

  1. Known allergy or other adverse reactions to exogenous natriuretic peptides (CD-NP or its components, nesiritide, other natriuretic peptides, or related compounds).
  2. Women who are pregnant, or breast-feeding.
  3. Having received nesiritide for within 7 days prior to prior to entry into the study.
  4. Having received any investigational drug or device within 30 days prior to entry into the study.
  5. Clinically unstable patients (e.g. systolic blood pressure < 90 mmHg, ongoing requirement for vasopressors or mechanical circulatory support, or mechanical ventilation).
  6. Recent hospitalization for decompensated HF or recent defibrillation for cardiac resuscitation within 30 days prior to randomization.
  7. Prior organ transplantation, being on a waiting list for organ transplantation, or ongoing requirement for longterm vasoactive support.
  8. Patients with guarded prognosis who are unlikely to derive meaningful benefit from CD-NP.
  9. Use of sulfonamides, non-steroidal anti-inflammatory drugs, probenecid, or other drugs that are known to alter renal function within 5 half-lives prior to the first dose of CD-NP or placebo.
  10. Presence of cardiac lesions or comorbidities that may contraindicate the use of natriuretic peptides, such as clinically significant cardiac valvular stenosis, hypertrophic cardiomyopathy, restrictive cardiomyopathy, constrictive pericarditis, primary pulmonary hypertension, or uncorrected congenital heart disease that contraindicates the use of vasodilators.
  11. History of blood pressure > 190/115 mmHg or unexplained syncope within the past 3 months.
  12. Symptomatic carotid artery disease, known critical carotid stenosis, or stroke within the past 3 months
  13. Clinically significant renal artery stenosis
  14. Baseline hemoglobin < 10.0 g/dL.
  15. Serum sodium < 130 mEq/L, potassium < 3.6 mEq/L, or magnesium < 1.7 mEq/L.
  16. Elevated aspartate aminotransferase (AST) or alanine aminotransferase (ALT) at least 5 times the upper limit of normal or bilirubin at least 3 times the upper limit of normal
  17. Creatinine clearance (CrCl) < 50 ml.min-1.1.73m-2, as calculated by Cockcroft-Gault formula and adjusted for body surface area within the past year or at screening, or requirement for dialysis.
  18. History of alcohol abuse within the past 6 months.
  19. Consumption of a phosphodiesterase-5 inhibitor (sildenafil, vardenafil, or tadalafil) within 72 hours of receiving CD-NP or placebo.
  20. Inability to communicate effectively with study personnel.
  21. bmi>38
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00620308

United States, Minnesota
Mayo Clinic
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
Mayo Clinic
Study Director: John C. Burnett, Jr., MD Mayo Foundation
  More Information

Additional Information:
Responsible Party: John A. Schirger, John Schirger ,MD, Mayo Clinic
ClinicalTrials.gov Identifier: NCT00620308     History of Changes
Other Study ID Numbers: 07-005523
First Submitted: February 10, 2008
First Posted: February 21, 2008
Last Update Posted: September 10, 2012
Last Verified: August 2012

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases