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| Tracking Information | |||||||||
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| First Received Date ICMJE | April 16, 2008 | ||||||||
| Last Updated Date | January 29, 2009 | ||||||||
| Start Date ICMJE | November 2007 | ||||||||
| Estimated Primary Completion Date | November 2009 (final data collection date for primary outcome measure) | ||||||||
| Current Primary Outcome Measures ICMJE |
TDI-score [ Time Frame: at day 0 and follow up after 3 weeks ] [ Designated as safety issue: No ] | ||||||||
| Original Primary Outcome Measures ICMJE | Same as current | ||||||||
| Change History | Complete list of historical versions of study NCT00660868 on ClinicalTrials.gov Archive Site | ||||||||
| Current Secondary Outcome Measures ICMJE |
odor threshold odor discrimination odor identification [ Time Frame: at day 0 and at follow up after 3 weeks ] [ Designated as safety issue: No ] | ||||||||
| Original Secondary Outcome Measures ICMJE | Same as current | ||||||||
| Descriptive Information | |||||||||
| Brief Title ICMJE | Is Pentoxifylline Able to Improve Olfactory Sensitivity? | ||||||||
| Official Title ICMJE | Agapurin Retard Used in Patients With Smell Disorder- A Post-Marketing Observational Study | ||||||||
| Brief Summary | Signal processing in the olfactory neuron could be influenced by inhibition of enzymes like phosphodiesterase. Pentoxifylline is a unspecific phosphodiesterase inhibitor. The hypothesis is that pentoxifylline could lead to increased sensitivity to odors. |
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| Detailed Description | Olfactory signal processing is conducted by a G-protein linked increase of intracellular concentration of adenosine 3´,5´-cyclic monophosphate (cAMP). In the cilia of olfactory sensory neurons (OSN) cAMP is degraded by phosphodiesterase 1C2 (PDE1C2). Inhibition of PDE1C2 could result in an increased response of OSN to chemical stimuli. Aim of the present prospective post-marketing surveillance study was to investigate the impact of pentoxifylline, an unspecific phosphodieasterase inhibitor, on olfactory function. |
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| Study Phase | |||||||||
| Study Type ICMJE | Observational | ||||||||
| Study Design ICMJE | Other, Prospective | ||||||||
| Condition ICMJE | Olfaction Disorders | ||||||||
| Intervention ICMJE | Drug: Pentoxifylline retard 400mg | ||||||||
| Study Arms / Comparison Groups | Patients with posttraumatic, idiopathic, and postinflammatory cause of smell loss; patients age between 18 and 50 years. Odor threshold better than 1. | ||||||||
| Publications * | |||||||||
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* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline. |
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| Recruitment Information | |||||||||
| Recruitment Status ICMJE | Recruiting | ||||||||
| Estimated Enrollment ICMJE | 30 | ||||||||
| Estimated Completion Date | November 2009 | ||||||||
| Estimated Primary Completion Date | November 2009 (final data collection date for primary outcome measure) | ||||||||
| Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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| Gender | Both | ||||||||
| Ages | 18 Years to 50 Years | ||||||||
| Accepts Healthy Volunteers | No | ||||||||
| Contacts ICMJE |
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| Location Countries ICMJE | Germany | ||||||||
| Administrative Information | |||||||||
| NCT ID ICMJE | NCT00660868 | ||||||||
| Responsible Party | Gudziol, Dr. med., Smell and Taste clinic, Klinik für HNO- Heilkunde, Universitätsklinikum Dresden | ||||||||
| Study ID Numbers ICMJE | EK157072007 | ||||||||
| Study Sponsor ICMJE | Dresden University of Technology | ||||||||
| Collaborators ICMJE | |||||||||
| Investigators ICMJE |
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| Information Provided By | Dresden University of Technology | ||||||||
| Verification Date | January 2009 | ||||||||
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ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |
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