PolyArginine Treated vEiN grafTs II (PATENT II)

This study is not yet open for participant recruitment. (see Contacts and Locations)
Verified March 2011 by St. Luke's Hospital, Chesterfield, Missouri
Information provided by:
St. Luke's Hospital, Chesterfield, Missouri
ClinicalTrials.gov Identifier:
First received: March 10, 2011
Last updated: NA
Last verified: March 2011
History: No changes posted

The purpose of this study is to study the effects of polyarginine treated vein grafts on graft patency for patients undergoing coronary artery bypass surgery.

Condition Intervention Phase
Drug: Polyarginine
Drug: Lactated Ringers Solution
Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Factorial Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: PolyArginine Treated vEiN grafTs II (PATENT II)

Resource links provided by NLM:

Further study details as provided by St. Luke's Hospital, Chesterfield, Missouri:

Primary Outcome Measures:
  • To study the effects of arginine on saphenous vein graft patency rates [ Time Frame: 12 months post op ] [ Designated as safety issue: Yes ]
    To study the effects of arginine on saphenous vein graft patency rates

Estimated Enrollment: 540
Study Start Date: April 2011
Estimated Study Completion Date: April 2016
Estimated Primary Completion Date: April 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Lactated Ringers Solution with Arginine Drug: Polyarginine
Vein soak treated with polyarginine
Placebo Comparator: Lactated Ringers Solution Drug: Lactated Ringers Solution
Vein soak

Detailed Description:

Double blind study with Lactated Ringers Solution and Lactated Ringers Solution with Arginine soaked for 10 minutes prior to grafting on the coronary arteries.


Ages Eligible for Study:   25 Years to 95 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Subjects must be 25-95 years of age and able to give informed consent.
  2. First, isolated coronary artery bypass graft surgery.
  3. Use of an apoproved statin and anti-platelet medication for at least 24 months.
  4. Agreeable to Cardiovascular imaging at 12 months post-CABG.

Exclusion Criteria:

  1. Acute traumatic injury, vasculitis or planned concurrrent ventricular surgical restoration, AICD placement or valvular surgery.
  2. Hypercoaguable state.
  3. Comorbid illness making 2 year survival unlikely.
  4. Participation in another interventional investigative study of a cardiovascular drug or device within 30 days prior to CABG. May participate concurrently in other studies where the intervention/observation will not hinder execution of this study.
  5. Patients with any medical condition that, in the investigator's judgment, makes the patient ineligible or places the patient at undue risk (e.g. conditions that preclude standeard invasive follow up procedures such as angiography, i.e. renal failure, bleeding diathesis or peripheral vascular disease preventing catheterization via the groin).
  6. Subject has clinical evidence of infection that the Investigator deems significant to the completion of the procedure or that could compromise the subject's safety.
  7. Any patient was has undergone more than 20 CAT scans.
  8. Any patient who is pregnant.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01313533

Contact: Ronald D Leidenfrost, M.D. 314-304-3049 drron7103@yahoo.com
Contact: Ronald A Fiehler, RN 314-434-3049 medadvant@sbcglobal.net

United States, Missouri
St. Luke's Hospital Not yet recruiting
Chesterfield, Missouri, United States, 63017
Contact: Ronald D Leidenfrost, MD    314-434-3049    drron7103@aol.com   
Sponsors and Collaborators
St. Luke's Hospital, Chesterfield, Missouri
Principal Investigator: Ronald D Leidenfrost, MD St Luke's Hospital
  More Information

No publications provided

Responsible Party: Ronald Leidenfrost, M.D., Chief of Cardiothoracic Surgery St. Luke, St. Luke's Hospital
ClinicalTrials.gov Identifier: NCT01313533     History of Changes
Other Study ID Numbers: R9-LRS-CS-01
Study First Received: March 10, 2011
Last Updated: March 10, 2011
Health Authority: United States: Institutional Review Board

Keywords provided by St. Luke's Hospital, Chesterfield, Missouri:
Atherosclerosis of Autologous Vein Bypass Graft(s) of the Left Leg with Ulceration of Unspecified Site

Additional relevant MeSH terms:
Arterial Occlusive Diseases
Vascular Diseases
Cardiovascular Diseases
Pharmaceutical Solutions
Therapeutic Uses
Pharmacologic Actions

ClinicalTrials.gov processed this record on October 19, 2014