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The SAPPHIRE Study (Systolic And Pulse Pressure Hemodynamic Improvement By Restoring Elasticity)

This study has been completed.
Information provided by:
Synvista Therapeutics, Inc Identifier:
First received: September 17, 2002
Last updated: March 25, 2010
Last verified: August 2007
The purpose of this study is to evaluate the safety and efficacy of ALT-711 in the treatment of isolated systolic hypertension in a formal dose-ranging study in patients without left ventricular hypertrophy. Eligible patients will be randomized to double-blind treatment once daily for 6 months with oral ALT-711 (35, 70, 140, or 210 mg) or placebo.

Condition Intervention Phase
Hypertension Drug: ALT-711 Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: Systolic and Pulse Pressure Hemodynamic Improvement By Restoring Elasticity: The SAPPHIRE Study

Further study details as provided by Synvista Therapeutics, Inc:

Estimated Enrollment: 450
Study Start Date: October 2001
Study Completion Date: August 2006
Primary Completion Date: May 2003 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   50 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria

  • Men or women at least 50 years of age.
  • Screening diagnosis of isolated systolic hypertension, defined as systolic blood pressure >150 mm Hg and diastolic blood pressure <90 mm Hg (office blood pressure measurements) and systolic blood pressure >140 mm Hg (measured by 24-hour ambulatory blood pressure monitoring-mean daytime values).
  • Baseline systolic blood pressure >150 mm Hg and diastolic blood pressure <90 mm Hg (office blood pressure measurements).
  • Patients without left ventricular hypertrophy (LVH) as determined by limited echocardiography for LVH (i.e., wall thickness < 1.2 cm).
  • Patient can complete an informed consent.

Exclusion Criteria

  • Patient <50 years of age.
  • Patients on antihypertensive therapy with changes in dose in the last 1 month prior to the entry into the study.
  • Hb A1c > 9%.
  • Serum creatinine > 1.7mg/dL.
  • History of ketoacidosis or uncontrolled diabetes within the last 2 years.
  • History of congestive heart failure.
  • History of stroke, or any sequelae of a transient ischemic attack, reversible ischemic neurologic defect, or stroke, within the last 12 months.
  • History of acute myocardial infarction within 6 months prior to entry into the study.
  • Any significant ECG abnormalities, including second degree AV-block or complete AV-block. Any known significant arrhythmia including atrial flutter, ventricular tachycardia, WPW-syndrome. Any hemodynamically significant valvular heart disease.
  • Any significant systemic illnesses or medical condition that could lead to difficulty complying with the protocol.
  • Screening or Baseline liver function tests SGOT and/or SGPT > 2.0 times the upper limits of central laboratory normal range.
  • Use of systemic and/or inhaled corticosteroids (excluding topical corticosteroids).
  • Any additional condition(s), which in the investigator's opinion would prohibit the patient from completing the study, or not be in the best interest of the patient.
  • Use of any investigational drugs within 30 days prior to screening.
  • Previous exposure to ALT-711.
  • Known seropositivity for HIV or hepatitis C, or presence of hepatitis B surface antigen.
  • Pregnancy or active breast-feeding. Female patients of childbearing potential (not postmenopausal for at least 5 years or surgically sterilized) must agree not to become pregnant during the duration of the study. Specifically, they must agree to use an appropriate contraceptive regimen. Acceptable regimens include abstinence, systemic hormones, intrauterine devices and barrier methods, such as cervical caps, male or female condoms, or diaphragms with concomitant intravaginal spermicide. A barrier method must have been used without failure for at least 1 year immediately preceding entry into the study.
  • Positive drug screen.
  • Necessity to use tobacco or nicotine-containing products, or to consume caffeine- containing beverages and/or food, and/or alcohol after midnight prior to clinic visit days, until after any evaluations.
  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 identifier: NCT00045981

Sponsors and Collaborators
Synvista Therapeutics, Inc
Study Director: Milan Kovacevic, MD, PhD Synvista Therapeutics, Inc
  More Information

Publications: Identifier: NCT00045981     History of Changes
Other Study ID Numbers: ALT-711-0107
Study First Received: September 17, 2002
Last Updated: March 25, 2010

Keywords provided by Synvista Therapeutics, Inc:
antihypertensive agents/therapeutic use
hypertension/*drug therapy
blood pressure

Additional relevant MeSH terms:
Vascular Diseases
Cardiovascular Diseases processed this record on September 21, 2017