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Pathophysiological impacts of tafamidis on cardiac transthyretin amyloidosis

Pathophysiological impacts of tafamidis on cardiac transthyretin amyloidosis - PICTA study

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1041200007
Enrollment
20
Registered
2020-04-28
Start date
2020-10-02
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Transthyretin amyloidosis ATTR-CM

Interventions

To prescribe tafamidis for 1 year in patients with ATTR-CM and to evaluate the pathophysiological impacts of tafamidis on cardiac transthyretin amyloidosis

Sponsors

Fujimoto Naoki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1)heart failue patients with transthyretin amyloidosis (2)patients with transthyretin amyloidosis confirmed by myocardial biopsy (3)patients with LV thickness equal and/or greater than 12 mm (4)patients wth age equal and/or greater than 20 (5)men and women (6)patients with NYHA 1 to 3 (7) patients with LV hypertrophy (and diastolic dysfunction) caused by amyloid deposition

Exclusion criteria

Exclusion criteria: (1) patients with severe valcular disease (2) patients with NYHA4 heart failure (3) patients with acute coronary syndrome (4) patients with cardiogenic shock (5) patients with severe liver failure (6) patients with stage 5 kidney disease (7) patients with infectious disease (8) patients with a a life expectancy of less than 1 year (9) pregnant patients (10) patients who are unable to walk

Design outcomes

Primary

MeasureTime frame
The change on the area of amyloid deposition in the myocardial biopsy specimen from right ventricular septum before and 1 year after treatment with tafamidis

Secondary

MeasureTime frame
(1) the way of amyloid deposition, the extent of interstitial fibrosis and inflammatory cell infiltration, and the degree of myocardial cell injury assessed by myocardial biopsy from ventricular septum (2) cardiac function by echocardiography, cardiac MRI, and conductance catheter (3) six minutes walk test, activity monitoring, peak oxygen uptake and quality of life (4) heart failure severity (5) blood tests (BNP, troponin T, etc)

Contacts

Public ContactNaoki Fujimoto

Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Mie

naokifujimo@clin.medic.mie-u.ac.jp+81-59-231-5015

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026