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Parkinson DiseaseNCT00096876

A Study of the Sense of Smell in Relatives of Parkinson's Disease Patients

An observational study of Parkinson Disease and Parkinsonian Syndrome, run by Institute for Neurodegenerative Disorders at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

In this study, individuals complete and return a mail survey, specifically a 40 item scratch and sniff smell test. Read more about this study

Who is it for?
Ages 21 years and olderHealthy volunteers can take part
Conditions the study is for
Parkinson Disease, Parkinsonian Syndrome
How many people
600 participants
Where
1 siteUnited States
Study dates
Oct 2004to Jun 2008
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Subject must be a first-degree relative of a PD patient with diagnosis confirmed by a movement disorders specialist at the Institute for Neurodegenerative Disorders
  • Subject must not carry a diagnosis of PD or other neurodegenerative disorder
  • Subject must be either at least 50 years old or within 10 years of the age of onset of their affected relative
  • Subject must be a non-smoker
  • Subject must have no other known reason for abnormal olfaction (e.g. nasal trauma)

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Institute for Neurodegenerative Disorders

    New Haven, Connecticut, 06510

Other trials in United States

About this study

Official title: Screening Evaluations for Neurologic Syndromes: Olfactory Testing in Relatives of Parkinson's Disease Patients

In this study, individuals complete and return a mail survey, specifically a 40 item scratch and sniff smell test.

Read the detailed description

This study would extend the findings of previous studies by characterizing the performance of the 40-item UPSIT in a cohort of first-degree relatives of Parkinson's disease (PD) patients. The results would also validate the use of the University of Pennsylvania Smell Identification Test (UPSIT) as a mail-survey instrument. Once identified, these individuals could be followed as a potentially at-risk cohort to determine if the screening evaluation was predictive of later developing Parkinson's disease. The results from this pilot study have the potential to guide the use of olfactory testing using the UPSIT as a screening tool, and to provide necessary preliminary data for planning clinical trials to prevent the occurrence of PD in at-risk individuals.

Keywords
Parkinsonian syndrome
Medical subject headings
Parkinson Disease, Parkinsonian Disorders

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Nov 2004 (estimated)
  2. Study startOct 2004
  3. Primary completionJun 2008
  4. Study completionJun 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Time perspective
Prospective
Enrolment
600 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00096876
Sponsor's protocol ID
SENSOR
Status last verified
Apr 2019
First submitted
16 Nov 2004
Last updated
3 Apr 2019
Results posted
No

Publications

  • Berendse HW, Booij J, Francot CM, Bergmans PL, Hijman R, Stoof JC, Wolters EC. Subclinical dopaminergic dysfunction in asymptomatic Parkinson's disease patients' relatives with a decreased sense of smell. Ann Neurol. 2001 Jul;50(1):34-41. doi: 10.1002/ana.1049.

    PubMed 11456307
  • DeKosky ST, Marek K. Looking backward to move forward: early detection of neurodegenerative disorders. Science. 2003 Oct 31;302(5646):830-4. doi: 10.1126/science.1090349.

    PubMed 14593169
  • Doty RL, Shaman P, Dann M. Development of the University of Pennsylvania Smell Identification Test: a standardized microencapsulated test of olfactory function. Physiol Behav. 1984 Mar;32(3):489-502. doi: 10.1016/0031-9384(84)90269-5.

    PubMed 6463130
  • Doty RL, Bromley SM, Stern MB. Olfactory testing as an aid in the diagnosis of Parkinson's disease: development of optimal discrimination criteria. Neurodegeneration. 1995 Mar;4(1):93-7. doi: 10.1006/neur.1995.0011.

    PubMed 7600189
  • Marek KL, Seibyl JP, Zoghbi SS, Zea-Ponce Y, Baldwin RM, Fussell B, Charney DS, van Dyck C, Hoffer PB, Innis RP. [123I] beta-CIT/SPECT imaging demonstrates bilateral loss of dopamine transporters in hemi-Parkinson's disease. Neurology. 1996 Jan;46(1):231-7. doi: 10.1212/wnl.46.1.231.

    PubMed 8559382
  • Markopoulou K, Larsen KW, Wszolek EK, Denson MA, Lang AE, Pfeiffer RF, Wszolek ZK. Olfactory dysfunction in familial parkinsonism. Neurology. 1997 Nov;49(5):1262-7. doi: 10.1212/wnl.49.5.1262.

    PubMed 9371905
  • Montgomery EB Jr, Baker KB, Lyons K, Koller WC. Abnormal performance on the PD test battery by asymptomatic first-degree relatives. Neurology. 1999 Mar 10;52(4):757-62. doi: 10.1212/wnl.52.4.757.

    PubMed 10078723
  • Morrish PK, Rakshi JS, Bailey DL, Sawle GV, Brooks DJ. Measuring the rate of progression and estimating the preclinical period of Parkinson's disease with [18F]dopa PET. J Neurol Neurosurg Psychiatry. 1998 Mar;64(3):314-9. doi: 10.1136/jnnp.64.3.314.

    PubMed 9527140
  • Mouradian MM. Recent advances in the genetics and pathogenesis of Parkinson disease. Neurology. 2002 Jan 22;58(2):179-85. doi: 10.1212/wnl.58.2.179.

    PubMed 11805242
  • Quinn NP, Rossor MN, Marsden CD. Olfactory threshold in Parkinson's disease. J Neurol Neurosurg Psychiatry. 1987 Jan;50(1):88-9. doi: 10.1136/jnnp.50.1.88.

    PubMed 3819760

Questions about this trial

What is this clinical trial studying?

An observational study of Parkinson Disease and Parkinsonian Syndrome, run by Institute for Neurodegenerative Disorders at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00096876, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Apr 2019.

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