Working… Menu

Promethazine vs. Lorazepam for Treatment of Vertigo

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. Identifier: NCT01827293
Recruitment Status : Completed
First Posted : April 9, 2013
Last Update Posted : June 14, 2013
Information provided by (Responsible Party):
Shadi Asadollahi, Shahid Beheshti University of Medical Sciences

Brief Summary:
This study was a prospective, randomized, double-blind, parallel group clinical trial designed to compare the efficacy of intravenous (IV) promethazine and lorazepam for the treatment of peripheral vertigo in Emergency Department setting.

Condition or disease Intervention/treatment Phase
Peripheral Vertigo. Drug: Promethazine Drug: Lorazepam Phase 3

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 210 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Promethazine vs. Lorazepam for Treatment of Vertigo in the Emergency Department: A Randomized Clinical Trial
Study Start Date : April 2013
Actual Primary Completion Date : June 2013
Actual Study Completion Date : June 2013

Arm Intervention/treatment
Active Comparator: Promethazine
IV promethazine (25 mg)
Drug: Promethazine
Drug: Lorazepam
Active Comparator: lorazepam
IV lorazepam (2 mg)
Drug: Promethazine
Drug: Lorazepam

Primary Outcome Measures :
  1. Mean change in vertigo intensity. [ Time Frame: At 2 hours after intervention. ]
    The primary efficacy outcome was the mean change in the vertigo intensity score between pre- and post-intervention at 2 hours after administration of study medications.

Secondary Outcome Measures :
  1. Efficacy and Safety outcome measures (nausea change-second dose-adverse events). [ Time Frame: At 2-8 hours after intervention. ]
    Secondary outcomes included, mean change in nausea VAS score, need for second dose of study medications, and the rate of drug-related adverse events for the subjects in each study group after intervention.

Information from the National Library of Medicine

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, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Aged 18 years or older
  • Background history of positional vertigo

Exclusion Criteria:

  • Unable to provide informed consent
  • Pregnant or possibly pregnant
  • Known allergy to study medications
  • Use of antiemetic agents in the previous 24 hours
  • Evidence of drug-induced vertigo or orthostatic hypotension
  • Central pathologies/central origin for vertigo

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 identifier (NCT number): NCT01827293

Layout table for location information
Iran, Islamic Republic of
Department of Neurology, Emam Hossein Hospital
Tehran, Nezam Abad, Iran, Islamic Republic of, 17666-33815
Sponsors and Collaborators
Shahid Beheshti University of Medical Sciences

Layout table for additonal information
Responsible Party: Shadi Asadollahi, Research Assistant, Shahid Beheshti University of Medical Sciences Identifier: NCT01827293     History of Changes
Other Study ID Numbers: SB-067
First Posted: April 9, 2013    Key Record Dates
Last Update Posted: June 14, 2013
Last Verified: June 2013
Additional relevant MeSH terms:
Layout table for MeSH terms
Vestibular Diseases
Labyrinth Diseases
Ear Diseases
Otorhinolaryngologic Diseases
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Sensation Disorders
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Gastrointestinal Agents
Hypnotics and Sedatives
Central Nervous System Depressants
Anti-Anxiety Agents
Tranquilizing Agents
Psychotropic Drugs
GABA Modulators
GABA Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Dermatologic Agents