Transthyretin-Associated Amyloidoses Outcome Survey (THAOS) (THAOS)

This study is currently recruiting participants. (see Contacts and Locations)
Verified May 2016 by Pfizer
Sponsor:
Information provided by (Responsible Party):
Pfizer
ClinicalTrials.gov Identifier:
NCT00628745
First received: February 25, 2008
Last updated: May 18, 2016
Last verified: May 2016
  Purpose

THAOS is a global, multi-center, longitudinal observational survey open to all patients with transthyretin-associated amyloidoses (ATTR), including ATTR-PN (polyneuropathy), ATTR-CM (cardiomyopathy) and wild-type ATTR-CM. It is open-ended with a minimum duration of 10 years. Patients will be followed as long as they are able to participate.

The principal aims of this outcome survey are to better understand and characterize the natural history of the disease by studying a large and heterogenous patient population. Survey data may be used to develop new treatment guidelines and recommendations, and to inform and educate clinicians about the management of this disease.


Condition Intervention
Transthyretin Mutations
Transthyretin Amyloidosis
Other: None. Observational Study.

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Transthyretin-associated Amyloidosis Outcomes Survey (Thaos): A Global, Multi-center, Longitudinal, Observational Survey Of Patients With Documented Transthyretin (Ttr) Mutations Or Wild-type Ttr Amyloidosis

Resource links provided by NLM:


Further study details as provided by Pfizer:

Primary Outcome Measures:
  • The objectives of THAOS are to describe the population of patients affected with TTR amyloidoses and to enhance the understanding of the disease natural history, including the variability and progression of the hereditary and acquired forms of disease. [ Time Frame: Dec 2007 to June 2021 ] [ Designated as safety issue: No ]

Biospecimen Retention:   Samples With DNA
whole blood

Estimated Enrollment: 3000
Study Start Date: July 2007
Estimated Study Completion Date: June 2021
Estimated Primary Completion Date: June 2021 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Observational Other: None. Observational Study.

Detailed Description:
n/a NA
  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Participants with transthyretin-associated amyloidoses (ATTR), including ATTR-PN (polyneuropathy), ATTR-CM (cardiomyopathy) and wild-type ATTR-CM.
Criteria

Inclusion Criteria: Patients must meet all of the following inclusion criteria to be eligible for enrollment into THAOS:

  1. Evidence of a personally signed and dated informed consent document indicating that the patient (or a legally acceptable representative) has been informed of all pertinent aspects of the study.
  2. Males and females 18 years of age.
  3. Confirmed genotyped TTR mutation with or without a diagnosis of ATTR, or wild-type TTR amyloidosis. Confirmation of wild-type TTR amyloidosis will be determined by genotyped confirmation that patient does not possess a known mutation in TTR gene (ie, is a carrier of wild-type allele only) via genetic testing and one of the following set of criteria (A, B, or C):

    1. Evidence of cardiac involvement by echocardiogram as defined by mean left ventricle wall thickness of >12 mm, and presence of amyloid in cardiac biopsy tissue confirmed as TTR amyloid by mass spectrometry or immunohistochemistry; or
    2. Evidence of cardiac involvement by echocardiogram as defined by mean left ventricle wall thickness of >12 mm, and presence of amyloid in non-cardiac tissue confirmed as TTR amyloid by mass spectrometry or immunohistochemistry; or
    3. Evidence of cardiac involvement by echocardiogram as defined by mean left ventricle wall thickness of >12 mm, no evidence of primary (light chain) amyloidosis, and presence of amyloid in cardiac tissue indirectly confirmed by scintigraphy with a "bone seeking tracer" eg, 99mTC-DPD [99mTC-3,3-diphosphono-1,2-propano-dicarboxylic acid], 99mTC- PYP [Pyrophosphate], and 99mTC-HMDP [hydroxymethylene diphosphonate] with Perugini grade greater than or equal to 2.

Exclusion Criteria

Patients presenting with any of the following will not be included in THAOS:

1. Patient has primary or secondary amyloidosis.

  Contacts and Locations
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: NCT00628745

Contacts
Contact: Pfizer CT.gov Call Center 1-800-718-1021

  Show 93 Study Locations
Sponsors and Collaborators
Pfizer
Investigators
Study Director: Pfizer CT.gov Call Center Pfizer
  More Information

Additional Information:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT00628745     History of Changes
Other Study ID Numbers: B3461001  FX-R-001 
Study First Received: February 25, 2008
Last Updated: May 18, 2016
Health Authority: United States: Food and Drug Administration

Keywords provided by Pfizer:
TRANSTHYRETIN
AMYLOIDOSIS
TRANSTHYRETIN AMYLOIDOSIS

Additional relevant MeSH terms:
Amyloid Neuropathies, Familial
Amyloidosis
Amyloid Neuropathies
Amyloidosis, Familial
Genetic Diseases, Inborn
Heredodegenerative Disorders, Nervous System
Metabolic Diseases
Metabolism, Inborn Errors
Nervous System Diseases
Neurodegenerative Diseases
Neuromuscular Diseases
Peripheral Nervous System Diseases
Proteostasis Deficiencies

ClinicalTrials.gov processed this record on May 26, 2016