A Randomized, Placebo-Controlled Study to Evaluate the Efficacy and Tolerability of Asenapine With Flexible Dosing From 5mg to 20mg in Adults With Developmental Stuttering
This study has suspended participant recruitment.
(Study transferring to another facility)
Merck Sharp & Dohme Corp.
Information provided by (Responsible Party):
Gerald Maguire, University of California, Irvine
First received: July 24, 2012
Last updated: May 19, 2014
Last verified: May 2014
The purpose of this research study is to find out the potential benefits and safety of asenapine (Saphris®) in adults who suffer from the developmental form of stuttering.
It is hypothesized that individuals who are randomly assigned to asenapine will have an improvement in speech as compared to a placebo.
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator)
Primary Purpose: Treatment
||A Randomized, Placebo-Controlled Study to Evaluate the Efficacy and Tolerability of Asenapine With Flexible Dosing From 5mg to 20mg in Adults With Developmental Stuttering
Primary Outcome Measures:
Secondary Outcome Measures:
- Clinical Global Impression [ Time Frame: 2 minutes ]
This is an evaluation of the patient by the investigator as to whether or not the subjects has improved, remained the same, or worsened while in the study.
- Barnes Akathisia Scale [ Time Frame: 3 minutes ]
Measures how restless the subject is during the examination.
| Estimated Enrollment:
| Study Start Date:
| Estimated Study Completion Date:
| Estimated Primary Completion Date:
||May 2014 (Final data collection date for primary outcome measure)
Placebo Comparator: Placebo
This is the comparator. Placebo will be matched to color, taste, size, and smell.
This is an atypical antipsychotic that blocks dopamine and increases serotonin. The dosage will be from 2.5 to 10mg daily throughout the study.
This is an atypical antipsychotic that blocks dopamine and increase the serotonin level.
Other Name: Saphris
|Ages Eligible for Study:
||18 Years to 70 Years (Adult, Senior)
|Sexes Eligible for Study:
|Accepts Healthy Volunteers:
Subjects can be enrolled in the study only if they meet all of the following criteria:
- Subjects must satisfy DSM-IV criteria for stuttering.
- The nature of stuttering must be developmental in origin with the onset prior to ten years of age.
- Subjects must have a score of moderate or higher on the SSI-IV. 4) Women of child-bearing potential are eligible to participate as long as they are practicing a medically accepted form of contraception (i.e. condom with spermicide or diaphragm, oral or depot contraception, or an intrauterine device).
5)Subjects will be male or female from the ages of 18-70. 6)Subjects will be of only English speaking.
Subjects will be excluded from the study for any of the following reasons:
- Stuttering related to a known neurologic cause (e.g. head trauma, stroke).
- Unstable medical or psychiatric illness.
- Active substance abuse within three months prior to study inclusion.
- Any illness that would require the concomitant use of a CNS active medication during the course of the study.
- Subjects with Parkinson's dementia or other degenerative neurologic illness.
- Subjects who are pregnant or nursing an infant.
- No minors (under the age of 18) will not be enrolled in this study as the research with this compound in children and adolescents has not been fully performed.
- Subjects who suffer from seizures, irregular heartbeat or an elevated blood sugar level (glucose).
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: NCT01684657
|University of California Irvine Medical Center
|Orange, California, United States, 92868 |
University of California, Irvine
Merck Sharp & Dohme Corp.
||Gerald Maguire, M.D.
||Gerald Maguire, Senior Associate Dean, University of California, Irvine
History of Changes
|Other Study ID Numbers:
|Study First Received:
||July 24, 2012
||May 19, 2014
Keywords provided by Gerald Maguire, University of California, Irvine:
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on May 25, 2017
Nervous System Diseases
Signs and Symptoms
Central Nervous System Depressants
Physiological Effects of Drugs