Welcome and Introductions
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Welcome and Introductions
Serge Lepage
MD, FRCPC, CSPQ
Full Professor
Director, Heart Function Clinic, Department of Cardiology, Université de Sherbrooke
Past President, Quebec Heart Failure Society
Sherbrooke, QC
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Faculty
3
Diego Delgado (Chair)
MD, MSc, FCCS, FACC
Medical Director Inpatient Cardiology Service
Site Director, Division of Cardiology, Toronto General Hospital
Reuben and Florence Fenwick Family Professorship in Heart Failure
Associate Member, Institute of Medical Science, University of Toronto
Professor of Medicine, University of Toronto
Past President Interamerican Society of Cardiology
Toronto, ON
Vera Bril
BSc, MD, FRCPC
Professor of Neurology, University of Toronto
Head, Neuromuscular Section, University of Toronto
Toronto, ON
Margot Davis
MD, MSc, FRCPC
Clinical Assistant Professor, UBC Cardiology
Director, UBC Cardiology-Oncology Program
Vancouver, BC
Anil Gupta
MD, FRCPC
Staff Cardiologist, Trillium Health Partners
Lecturer, University of Toronto
Toronto, ON
Serge Lepage
MD, FRCPC, CSPQ
Full Professor
Director, Heart Function Clinic, Department of Cardiology, Université de Sherbrooke
Past President, Quebec Heart Failure Society
Sherbrooke, QC
Disclosures: Dr. Diego Delgado
• Consultancy/speaking fees: Pfizer, Akcea, Alnylam
• Clinical trial participation: ATTRACT extension (Tafamidis), HELIOS-B
(Alnylam), Cardio TTRANSFORM (Ionis-Akcea) ATRIBUTE-CM (AG10)
Disclosures: Dr. Vera Bril
• Consultancy/speaking fees: Akcea, Alnylam, Ionis
• Clinical trial participation: CSL, Takeda, RVT, Momenta, UCB, Alexion,
Akcea, Talecris, Octapharma
Disclosures: Dr. Margot Davis
• Consultancy/speaking fees: Janssen, Novartis, Boehringer-Ingelheim,
Takeda, Pfizer, Akcea, Alnylam, Amgen, Ferring
• Grant funding: Pfizer, Takeda, Boehringer-Ingelheim, Servier, Akcea
Disclosures: Dr. Anil Gupta
• Consultancy/speaking fees: Amgen, Astrazeneca, Bayer, Boehringer
Ingelheim, BMS/Pfizer Alliance, Novartis, Pfizer, Sanofi, Servier
• Clinical trial participation: None
Disclosures: Dr. Serge Lepage
• Consultancy/speaking fees: Amgen, AstraZeneca, Boehringer Ingelheim,
Novartis, Servier
• Clinical trial participation: Amgen, Novartis
Disclosure of Commercial Support
Specific details of relationship:
– This program has received financial support from Alnylam in the form
of an educational grant
– This program has received in-kind support from Canadian Heart
Failure Society in the form of logistical support
Potential for conflict(s) of interest:
– Speakers have received honoraria from Canadian Heart Failure
Society
– Alnylam is the manufacturer of a product that will be discussed in this
program
Mitigating Potential Bias
Potential biases are acknowledged and are mitigated by
presenting data supported by national and international
guidelines, and as follows:
• Information presented is evidence-based
• Material has been developed and reviewed by a Planning
Committee
Off-label uses of drugs may be discussed and will be identified as
such by the speaker
Accreditation
This event is an accredited Group Learning Activity (Section 1) as defined by
the Maintenance of Certification Program of the Royal College of Physicians &
Surgeons of Canada and approved by the Canadian Cardiovascular Society.
You may claim a maximum of 0.75 hours.
Learning Objectives
• Distinguish between hereditary and wild-type ATTR amyloidosis in terms of
presentation and diagnosis
• Establish a care pathway for patients following genetic testing
• Assess the treatment options and the benefit of a multidisciplinary team
approach to treating hATTR
• Understand the importance of tailoring the treatment approach based on the
disease phenotype
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Agenda
Topic Facilitator
Welcome and Introductions Dr. Serge Lepage
Hereditary and Wild-Type ATTR Amyloidosis: Different Diseases, Different
Presentations
Dr. Diego Delgado
Dr. Vera Bril
Dr. Anil Gupta
Neuropathy in a Systemic Disease Dr. Vera Bril
Dr. Anil Gupta
Diagnosis of hATTR: The Key to a Hopeful Outcome Dr. Margot Davis
Dr. Anil Gupta
Treatment Plan and Treatment Goals Dr. Diego Delgado
Dr. Vera Bril
Treating Patients with hATTR Amyloidosis in the Community
Dr. Diego Delgado
Dr. Anil Gupta
Dr. Serge Lepage
Closing Remarks Dr. Diego Delgado
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Hereditary and Wild-Type ATTR
Amyloidosis: Different Diseases,
Different Presentations
Vera Bril Diego Delgado Anil Gupta
BSc, MD, FRCPC MD, MSc, FCCS, FACC MD, FRCPC
16
Key Questions
• What’s the difference between wtATTR and hATTR?
• What are the key red-flag symptoms of hATTR amyloidosis (sensory-motor
neuropathy, autonomic neuropathy, and cardiac manifestations)?
17
Dr Diego Delgado, MD, MSc, FCCS, FACC
Medical Director Inpatient Cardiology Service
Site Director, Division of Cardiology, Toronto General Hospital
Reuben and Florence Fenwick Family Professorship in Heart Failure
Associate Member, Institute of Medical Science, University of Toronto
Professor of Medicine, University of Toronto
Past President Interamerican Society of Cardiology
Toronto, ON
18
Cardiac Amyloidosis
AL, light-chain amyloidosis; ATTR, transthyretin amyloidosis; m, mutated; wt , wild-type. ; h: hereditary
Maleszewski JJ. Cardiovascular Pathology 2015;24(6):343-350; Rapezzi C et al. Circulation 2009;120:1203-1212; Maurer MS et al. J Am Coll Cardiol 2016;68(2):161-172.
ATTR
hATTR ATTRwt
Cardiac
Amyloidosis
AL
Clinical Presentations
Can J Cardiol. 2020 Mar;36(3):373-383 20
Cardiac Manifestations
Can J Cardiol. 2020 Mar;36(3):373-383 21
Can J Cardiol. 2020 Mar;36(3):373-383
Extracardiac Manifestations
22
• Renal
• Autonomic
• Neurologic peripheral sensorimotor neuropathy (might be
predominant feature of hATTR)
• Carpal tunnel syndrome
• Musculoskeletal
• Gastrointestinal
• Hematologic
• Ocular manifestations
Can J Cardiol. 2020 Mar;36(3):373-383
Extracardiac Manifestations
23
Key Clinical Features
Can J Cardiol. 2020 Mar;36(3):373-383 24
Dr Vera Bril, BSc, MD, FRCPC
Professor of Neurology, University of Toronto
Head, Neuromuscular Section, University of Toronto
Toronto, ON
25
1. Rapezzi C et al. Nat Rev Cardiol 2010;7:398–408.
2. Coutinho P. In: Glenner GG et al, eds. Amyloid and Amyloidosis. Amsterdam: Excerpta Medica; 1980.
Red Flags for TTR-FAP1,2
• Family history
• Carpal tunnel syndrome
• Cardiac involvement
• Small fiber and Autonomic involvement
• (2nd to 4th decade onset)
hATTR, hereditary amyloid transthyretin
1. Ando Y, et al. Orphanet J Rare Dis 2013;8:31
2. Coelho T, et al. Amyloidosis Foundation, 2008. https://www.researchgate.net/publication/265490881_A_Physician’s_Guide_to_Transthyretin_Amyloidosis_Authored_by Accessed January 3, 2019
• Characterized by symmetrical length-dependent peripheral neuropathy1,2
• Symptoms initially in lower limbs and progress proximally involving areas above
the ankles, legs, thighs, arms and anterior trunk
• Early clinical findings:
• Numbness and pain in feet with impaired temperature and pinprick sensation;
muscle strength and tendon reflexes are preserved
• Sensory loss progressively increases and light touch and deep
sensations become impaired
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Clinical Presentation: hATTR
Amyloidosis with PNP
hATTR, hereditary amyloid transthyretin
1. Ando Y, et al. Orphanet J Rare Dis 2013;8:31
2. Coelho T, et al. Amyloidosis Foundation, 2008. https://www.researchgate.net/publication/265490881_A_Physician’s_Guide_to_Transthyretin_Amyloidosis_Authored_by. Accessed January 3, 2019.
3. Coelho T, et al. Amyloidosis Foundation. http://www.amyloidosis.org/wp-content/uploads/2017/05/2017-ATTR-guide.pdf Accessed April 24, 2019.
4. Ando Y, et al. Muscle Nerve 1992;15:507-12.
Clinical Presentation: hATTR
Amyloidosis with PN
• Eventually until walking, balance, and gait are compromised,
fine hand movements become difficult, and autonomic dysfunction
manifests1,2
• Symptoms of autonomic dysfunction:3,4
• Autonomic dysfunction can occur early in the disease4
• Weight loss and muscle wasting are common
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• Alternating diarrhea and constipation • Vomiting
• Anhidrosis • Erectile dysfunction
• Nausea • Urinary retention and incontinence
• Delayed gastric emptying
Neuropathy in a Systemic Disease
29
Vera Bril, BSc, MD, FRCPC
Professor of Neurology, University of
Toronto
Head, Neuromuscular Section, University
of Toronto
Toronto, ON
Anil Gupta, MD, FRCPC
Staff Cardiologist, Trillium Health Partners
Lecturer, University of Toronto
Toronto, ON
Small Fiber Polyneuropathy
• Distal symmetrical polyneuropathy (PNP)
• Burning pain in the feet
• Worse at night
• Less noticeable during the day
• Difficult to control
• Associated with fear, anxiety, depression
• Reduced quality of life
• Refractory to many treatments
• Loss of pinprick, temperature on examination
• Normal reflexes strength, vibration and proprioception
hATTR
Predominant Neurologic
Presentation
Predominant Cardiac
Presentation
Mixed Presentation
V30M
early onset C10R R34T G47A F64L L58H E89Q I107V S23N T60A I68L
F33L S50R S77Y A36P T49A V30M
Late onset W41L H88R L111M V122I
hATTR, hereditary amyloid transthyretin; TTR, transthyretin
1. Rowczenio D, et al. Hum Mutat 2014;35:E2403-E2412 2. Ando Y, et al. Orphanet J Rare Dis 2013;8:31; 3. Coelho T, et al. Curr Med Res Opin 2013;29:63-76.
4. Gertz MA, et al. J Am Coll Cardiol 2015;66:2451-66.
Figure sources: Benson MD. Am J Pathol 1996;148: 351–54. Rapezzi C, et al. Eur Heart J 2013;34:520-28. Connors LH, et al. Amyloid 2003;10:160-84.
hATTR Amyloidosis: Broad Spectrum of
Presentation with Different TTR Mutations
• Hereditary amyloidosis is caused by many gene variants, but TTR mutations account for the majority1
• Transmitted in an autosomal dominant manner with variable penetrance2,3
• More than 120 TTR mutations have been discovered1
• Although some genotypes are associated predominantly with polyneuropathy or cardiomyopathy, most
patients with hATTR have mixed clinical phenotypes3,4
When to Suspect hATTR
Amyloidosis – RED FLAGS
Look for evidence of multisystem involvement, which may include:
Progressive,
symmetric
sensorimotor
neuropathy
Bilateral
carpal
tunnel
syndrome*
Early autonomic
dysfunction
(e.g., erectile
dysfunction
or postural hypotension)
GI complaints
(e.g., chronic
diarrhea, constipation
or diarrhea,
constipation)
Unexplained
weight loss
Cardiac signs &
symptoms
(e.g., cardiac hypertrophy,
arrhythmias, ventricular
blocks, or
cardiomyopathy)
Positive family
history
Vitreous
opacities
Renal
abnormalities
(e.g., albuminuria or
mild azotemia)
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Additional
alert signs:
Rapid disease
progression
Failure of
response to prior
therapies
*Consider particularly in men without predisposing occupation
Key Questions
•When should the cardiologist refer the patient to a
neurologist?
•How can both work together to improve outcomes for the
mixed phenotype patient?
33
Diagnosis of hATTR: The Key to a
Hopeful Outcome
34
Margot Davis, MD, MSc,
FRCPC
Clinical Assistant Professor, UBC Cardiology
Director, UBC Cardiology-Oncology Program
Vancouver, BC
Anil Gupta, MD, FRCPC
Staff Cardiologist, Trillium Health Partners
Lecturer, University of Toronto
Toronto, ON
Margot Davis, MD, MSc, FRCPC
Clinical Assistant Professor, UBC Cardiology
Director, UBC Cardiology-Oncology Program
Vancouver, BC
35
Cardiac Manifestations
Index of Suspicion – Key Features
Pre-contrast T1 Post-contrast T1
ECV LGE
• Increased LV and RV
wall thickness
• Preserved ventricular
size, biatrial
enlargement
• Diastolic dysfunction
• Increased valvular and
interatrial septum
thickness
• Small pericardial
effusion
• Reduced LV GLS,
preserved apical strain
(basal-apical strain
gradient)
• Diffuse transmural or
subendocardial pattern
LGE
• Left atrial LGE
• Elevated native (non-
contrast) T1 mapping
time
• Extracellular volume
expansion (post-
contrast T1 mapping)
• Low voltage (especially
limb leads)
• Pseudo-infarct pattern
• Atrial fibrillation
• Conduction system
disease
• Ventricular ectopy
• Increased myocardial
radiotracer uptake equal
to or greater than bone
(≥Grade 2), or in
quantitative comparison
with the contralateral
lung (HCL ratio ≥1.5)
ECG Echo
CMRI Tc-99m-PYP
Courtesy Dr. James White, Dr. Denise
Chan, University of Calgary
Can J Cardiol. 2020 Mar;36(3):322-332
CCS/CHFS
Joint
Position
Statement
Key Question
•How would a community cardiologist go about having a
patient undergo all of these tests when the physician
doesn’t have the resources of an academic centre?
40
Availability of Diagnostic Testing
Serum/urine protein
studies:
widely available, may
need to argue for IFE
PYP scans:
increasingly available
(>10 hospitals in BC), but
may need QA
Endomyocardial biopsy:
all transplant centres,
most centres with cath
labs
IHC:
not widely available,
depends on local
expertise/experience
Mass spectrometry:
not widely available, send
out to Mayo or Toronto
Genetic testing:
Publicly funded availability
varies by province,
industry partners provide
testing kits (US-based)
Treatment Plan and Treatment Goals
42
Vera Bril, BSc, MD, FRCPC
Professor of Neurology, University of
Toronto
Head, Neuromuscular Section, University
of Toronto
Toronto, ON
Diego Delgado, MD, MSc,
FCCS, FACC
Medical Director Inpatient Cardiology Service
Site Director, Division of Cardiology, Toronto General Hospital
Reuben and Florence Fenwick Family Professorship in Heart Failure
Associate Member, Institute of Medical Science, University of Toronto
Professor of Medicine, University of Toronto
Past President Interamerican Society of Cardiology
Toronto, ON
Dr Diego Delgado, MD, MSc, FCCS, FACC
Medical Director Inpatient Cardiology Service
Site Director, Division of Cardiology, Toronto General Hospital
Reuben and Florence Fenwick Family Professorship in Heart Failure
Associate Member, Institute of Medical Science, University of Toronto
Professor of Medicine, University of Toronto
Past President Interamerican Society of Cardiology
Toronto, ON
43
44
Disease-Modifying Therapy
Can J Cardiol. 2020 Mar;36(3):373-383 45
Disease-Modifying Therapy:
CCS/CHFS Recommendations
Can J Cardiol. 2020 Mar;36(3):373-383 46
• ATTR Cardiac Amyloidosis and NYHA I-III:
Tafamidis
• hATTR with ambulatory polyneuropathy:
Patisiran or Inotersen
47
Vera Bril, BSc, MD, FRCPC
Professor of Neurology, University of
Toronto
Head, Neuromuscular Section, University
of Toronto
Toronto, ON
UHN Experience
• Patients started on gene silencers just over 1 year ago
• Variable results: stable, better, worse
• Manage expectations to encourage continued therapy
• Patients do not always separate progression of disease from side-effects
of medication
48
Treating Patients with hATTR
Amyloidosis in the Community
Diego Delgado Anil Gupta Serge Lepage
MD, MSc, FCCS, FACC MD, FRCPC MD, FRCPC, CSPQ
49
Key Questions
•How can a community cardiologist take all the learnings
from this program and apply them into his or her
practice?
•How can he/she start diagnosing, testing, and treating
patients with hATTR amyloidosis in practice today?
50
Dr Diego Delgado, MD, MSc, FCCS, FACC
Medical Director Inpatient Cardiology Service
Site Director, Division of Cardiology, Toronto General Hospital
Reuben and Florence Fenwick Family Professorship in Heart Failure
Associate Member, Institute of Medical Science, University of Toronto
Professor of Medicine, University of Toronto
Past President Interamerican Society of Cardiology
Toronto, ON
51
Collaboration and Interdisciplinary Management
Can J Cardiol. 2020 Mar;36(3):373-383 52
Key Learnings
• Cardiac amyloidosis is a potentially fatal disease in which early recognition
and diagnosis are crucial
• TTR RNA silencing agents are indicated for hATTR patients with
polyneuropathy and mixed phenotype
• Comprehensive interdisciplinary management is recommended
53
Q&A
54
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56
Following the Break:
Thank you!
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