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Ascending Dose Study of the Safety and Tolerability of REGN728 in Healthy Volunteers

This study has been completed.
Information provided by (Responsible Party):
Regeneron Pharmaceuticals Identifier:
First received: August 11, 2010
Last updated: November 9, 2012
Last verified: November 2012
This study will test the safety and tolerability (how the body reacts to the drug) of REGN728 compared with placebo (an inactive substance that contains no medicine) in healthy subjects. The study drug and placebo will be administered by subcutaneous injection (under the skin) at the clinic visit. There will be 14 clinic visits, which will include 4 overnight stays. Subjects will be monitored by the study staff for side effects and the body's response to the study drug. Vital signs (blood pressure, temperature, breathing and heart rate) will be checked, blood and urine samples will be collected at some or all visits.

Condition Intervention Phase
Healthy Biological: REGN728 Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double Blind (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled, Ascending, Single-Dose Study of the Safety, Tolerability and Bioeffect of Subcutaneous REGN 728 in Healthy Volunteers

Further study details as provided by Regeneron Pharmaceuticals:

Primary Outcome Measures:
  • The primary endpoint in the study is the percentage of subjects with treatment emergent adverse events, reported from the administration of study drug on day 1 to the completion of the study on day 106. [ Time Frame: 106 days ]

Enrollment: 48
Study Start Date: August 2010
Study Completion Date: March 2012
Primary Completion Date: March 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Cohort 1
Dose 1 versus placebo
Biological: REGN728
2 Subcutaneous Cohorts (dose 1, 2)
Experimental: Cohort 2
Dose 2 versus placebo
Biological: REGN728
2 Subcutaneous Cohorts (dose 1, 2)


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male or female 18 to 65 years of age.
  • Weight> 50 kg and <95 kg inclusive
  • For men of childbearing potential, willingness to utilize adequate contraception and not have their partner[s] become pregnant during the full duration of the study.
  • Willing, committed, and able to return for all clinic visits and complete all study-related procedures.
  • Able to read, understand and willing to sign the informed consent form.

Exclusion Criteria:

  • Initiation of a new exercise routine or major change to a previous exercise routine within 4 weeks prior to screening visit.
  • Women of childbearing potential, pregnant and breast-feeding women are excluded. Women are considered to be of childbearing potential until they have been amenorrheic for at least 12 months or have had surgical sterilization.
  • Significant concomitant illness or history of significant illness such as cardiac, renal, neurological, endocrinological, metabolic or lymphatic disease, or any other illness or condition that would adversely affect the subject's participation in this study.
  • Hospitalization for any reason within 60 days of screening.
  • Known history of Human Immunodeficiency Virus (HIV) antibody; and/or positive Hepatitis B surface antigen, and/or positive Hepatitis C antibody at the screening visit.
  • Previous exposure to any therapeutic or investigational biological agent.
  • History of alcohol or substance abuse within a year prior to the screening visit.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

  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: NCT01197391

United States, Florida
Miramar, Florida, United States
United States, Kansas
Overland Park, Kansas, United States
Sponsors and Collaborators
Regeneron Pharmaceuticals
Study Director: Clinical Trial Management Regeneron Pharmaceuticals
  More Information

Responsible Party: Regeneron Pharmaceuticals Identifier: NCT01197391     History of Changes
Other Study ID Numbers: R728-CL-0915
Study First Received: August 11, 2010
Last Updated: November 9, 2012 processed this record on June 23, 2017