Open Label Study Investigating Safety and Efficacy of NPL2009 50 mg - 150 mg on Prepulse Inhibition Tests and Continuous Performance Tasks, Adults With Fragile X Syndrome

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: NCT00637221
Recruitment Status : Completed
First Posted : March 17, 2008
Last Update Posted : April 27, 2012
Information provided by (Responsible Party):

March 3, 2008
March 17, 2008
April 27, 2012
March 2008
April 2008   (Final data collection date for primary outcome measure)
The primary outcome measure for the study is that of safety and subjects will be assessed post-dose at at least hourly intervals for any signs of Adverse Events - up to allowing discharge from the unit at 6 hours post-dose [ Time Frame: 7 Days ]
Same as current
Complete list of historical versions of study NCT00637221 on Archive Site
Tolerability [ Time Frame: 7 days ]
Same as current
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Open Label Study Investigating Safety and Efficacy of NPL2009 50 mg - 150 mg on Prepulse Inhibition Tests and Continuous Performance Tasks, Adults With Fragile X Syndrome
An Open Label Exploratory Study to Investigate the Safety and Effects of NPL-2009 ( 50 mg - 150 mg Single Dose) on Prepulse Inhibition Tests and Continuous Performance Tasks, in Adults With Fragile X Syndrome
This is an open label exploratory study to investigate the safety and effects of a single dose of NPL-2009(50 mg - 150 mg) on Prepulse Inhibition (PPI) Tests and Continuous Performance Tasks (CPT) in adults with Fragile X Syndrome
Not Provided
Phase 1
Phase 2
Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Fragile X Syndrome
Drug: NPL-2009
Single doses of either 50mg, 100 mg or 150 mg NPL-2009
Not Provided
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Same as current
April 2008
April 2008   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Male or female patients, 18 to 45 years of age.
  • Diagnosis of Fragile X Syndrome.
  • Females must demonstrate a negative pregnancy test at screening.
  • Females of child-bearing potential must be using a medically accepted means of contraception or must remain abstinent for the duration of the study.
  • Each Legally Authorised Representative (LAR, usually parent or caregiver) must have a level of understanding sufficient to provide written informed consent to all required study tests and procedures.
  • Each patient must consent/assent (depending on center-specific procedures) to all required study tests and procedures.
  • Permitted concomitant medications must be stable for at least 6 weeks prior to enrollment. The following concomitant medications are permitted: psychostimulants, SSRIs, atypical antipsychotics, anticonvulsants which do not have liver inducing effects, clonidine.
  • Each patient must be able to swallow the capsules (2, 3 or 4) to be provided in the study.

Exclusion Criteria:

  • Current treatment with anticonvulsants known to induce liver enzymes e.g. depakote
  • Current treatment with N-methyl-D-aspartate (NMDA) antagonists
  • Current treatment with tricyclic antidepressants
  • Current treatment with typical antipsychotics
  • Current treatment with lithium
  • Patients planning to commence cognitive behaviour therapy during the period of the study or those who have begun cognitive behavioural therapy within 6 weeks prior to enrolment.
  • History of, or current cardiovascular, renal, hepatic, respiratory and particularly gastrointestinal disease which may interfere with the absorption, distribution, metabolism or excretion of the study medication.
  • History of, or current cerebrovascular disease or brain trauma.
  • History of, or current significant endocrine disorder, e.g. hypo or hyperthyroidism.
  • History of, or current malignancy.
  • Presence of psychotic symptoms or lifetime history of schizophrenia, bipolar disorder, or other psychotic disorder, as assessed by the Investigator.
  • Current major depressive disorder (patients must be free of the disorder for 3 months prior to enrolment).
  • Judged clinically to be at risk of suicide (suicidal ideation, severe depression, or other factors), as assessed by the Investigator.
  • Tourette's Disorder.
  • Female patients who are either pregnant or nursing.
  • Current drug abuse or dependence disorder or dependency in the 3 months prior to enrolment.
  • Clinically significant abnormalities in safety laboratory tests, vital signs or EKG, as measured at screening
  • Patients with significant hearing and/or visual impairments that may affect their ability to complete the test procedures
  • Enrollment in another clinical trial within the previous 30 days
Sexes Eligible for Study: All
18 Years to 45 Years   (Adult)
Contact information is only displayed when the study is recruiting subjects
United States
Not Provided
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Study Director: Mike Snape, PhD Neuropharm Ltd
April 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP