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Taking people in CanadaNo phase

Observing real-world care of patients with transthyretin amyloidosis

Follows adults with ATTR amyloidosis, a rare protein-build-up disease, and their treatments over time.

Plain-language title generated from the registry record
Registry title: Non-interventional Study of Patients With Transthyretin (ATTR) Amyloidosis

Key facts

Where
Halifax, London, Montreal, Rimouski, Toronto, and Vancouver, CanadaSee the 6 sites

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 130 years old?

Source: NCT06465810, who can take part

Where in Canada

  • HalifaxHalifax, CanadaTaking people
  • LondonLondon, CanadaTaking people
  • MontrealMontreal, CanadaNot yet recruiting
  • RimouskiRimouski, CanadaNot yet recruiting
  • TorontoToronto, CanadaTaking people
  • VancouverVancouver, CanadaTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
AstraZeneca
Trial code
NCT06465810
Record updated
23 September 2026
Original description
The MaesTTRo study aims to enroll a global cohort of patients with transthyretin (ATTR) amyloidosis to longitudinally observe the natural course of the disease and describe real-world treatment patterns and outcomes. In addition, information on the effectiveness of ATTR amyloidosis treatments, including eplontersen, which is a ligand-conjugated antisense oligonucleotide gene silencing treatment targeting activity against both the mutant and wild-type TTR protein, will be collected.Read full original descriptionShow less

A Non-interventional, Prospective, Multi-country Study Collecting Real-world Data on the Characteristics, Treatment Patterns, and Outcomes of Patients With Transthyretin (ATTR) Amyloidosis

The MaesTTRo study aims to enroll a global cohort of patients with transthyretin (ATTR) amyloidosis to longitudinally observe the natural course of the disease and describe real-world treatment patterns and outcomes. In addition, information on the effectiveness of ATTR amyloidosis treatments, including eplontersen, which is a ligand-conjugated antisense oligonucleotide gene silencing treatment targeting activity against both the mutant and wild-type TTR protein, will be collected.

Inclusion: Patient willing and able to provide written informed consent to participate in the study; Confirmed diagnosis of amyloid transthyretin (ATTR) amyloidosis; Aged ≥18 years at the time of signing the informed consent; Patient willing and able to participate in collection of electronic patient reported outcomes (PROs).

Exclusion: Concurrent participation in any interventional trial for ATTR amyloidosis; Patients with evidence of primary or light chain amyloidosis (AL) or serum protein A amyloidosis (AA); Involvement in the planning and/or conduct of the current study; Asymptomatic patients with ATTR amyloidosis and asymptomatic ATTR mutation carriers.

ClinicalTrials.gov NCT06465810