Study Stopped
The experimental design was not sufficient to answer the proposed questions. A new study design is now being considered.
Study of the Inhibition of [11C]R-rolipram Binding to Brain Phosphodiesterase - 4 (PDE-4) by HT-0712
A PET Study: Single-dose, Open-label Study of the Inhibition of [11C]R-rolipram Binding to Brain Phosphodiesterase - 4 (PDE-4) by HT-0712
2 other identifiers
interventional
3
1 country
1
Brief Summary
This Positron Emission Tomography (PET) imaging study is designed to explore the relationship between HT-0712 dose level and inhibition of brain phosphodiesterase-4 activity, in order to optimize the dosage regimens utilized in subsequent trials.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1
Started Sep 2010
Shorter than P25 for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2010
CompletedFirst Submitted
Initial submission to the registry
September 24, 2010
CompletedFirst Posted
Study publicly available on registry
October 6, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2011
CompletedJune 1, 2011
May 1, 2011
2 months
September 24, 2010
May 27, 2011
Conditions
Outcome Measures
Primary Outcomes (1)
PET measurement of HT-0712 inhibition of [11C]R-rolipram binding
To demonstrate Central Nervous System (CNS) exposure and dose-related inhibition of \[11C\]R-rolipram binding in brain regions of interest by HT-0712 when compared to baseline \[11C\]R-rolipram binding in the same individual.
1 day
Secondary Outcomes (1)
Brain uptake of [11C]R-rolipram, as determined by PET imaging, associated with both maximal plasma concentration of HT-0712 (Tmax) and overall plasma level exposure (AUC) following administration of different dose levels of HT-0712.
1 day
Study Arms (1)
HT-0712
EXPERIMENTALInterventions
A range of single oral dose levels will be explored, utilizing 5mg and 25mg strength capsules
Eligibility Criteria
You may qualify if:
- Healthy, elderly, non-smoking men and post-menopausal women
- Ability to give informed consent
You may not qualify if:
- Current or history of uncontrolled hypertension, major depression, Parkinson's disease, stroke and diabetes.
- Physical or behavioral conditions that may alter brain function
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Brookhaven National Laboratory
Upton, New York, 11973, United States
MeSH Terms
Interventions
Study Officials
- STUDY DIRECTOR
Philip Perera, MD
Dart NeuroScience, LLC
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
September 24, 2010
First Posted
October 6, 2010
Study Start
September 1, 2010
Primary Completion
November 1, 2010
Study Completion
January 1, 2011
Last Updated
June 1, 2011
Record last verified: 2011-05