ms academia: multiple sclerosis advanced course · neda and ms dmts study duration comparator test...
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www.excemed.org
IMPROVING THE PATIENT’S LIFE THROUGH
MEDICAL EDUCATION
MS Academia: Multiple sclerosis advanced course
13 September 2016 - London, UK
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www.excemed.org
IMPROVING THE PATIENT’S LIFE THROUGH
MEDICAL EDUCATION
Assessment of treatment response
Robert J. Fox
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Disclosure
Robert J. Fox, MD Staff Neurologist, Mellen Center for Multiple Sclerosis Vice-Chair for Research, Neurological Institute Professor, Cleveland Clinic Learner College of Medicine Cleveland Clinic, Cleveland, OH, USA
Dr. Fox has received consulting fees from Actelion, Biogen, Genentech, Mallinckrodt, Novartis, Teva, and Xenoport; and research support from Novartis.
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Objectives
1. Understand the concept of No Evidence of Disease
Activity (NEDA)
2. Apply this NEDA to current MS disease modifying therapies
3. Recognize breakthrough disease activity in clinical practice
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Nomenclature
• Disease-Free Status” is commonly used, but is discouraged, because we lack methodology to fully evaluate ongoing pathology
• “Disease-Activity Free Status” (DAF) is better, but we lack methodology to assert that we have eliminated all disease activity (e.g. triple-dose gadolinium?)
• “No Evident Disease Activity” (NEDA) is a reasonable term for this concept. It implies that the neurologist has monitored the patient for disease activity
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“Disease-Free Status” in AFFIRM The First Report of the Concept
“Our aim was to develop composite measures that can be applied in clinical practice and used as a measure of disease remission in clinical studies. Therefore, relapses, progression of disability (sustained for 12 weeks), Gad+ lesions, and new or enlarging T2-hyperintense lesions were taken into account.”
Havrdova et al. Lancet Neurology 2009;8:254-60
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Definition from Clinical Trials
• No new or enlarging T2 lesions
• No new Gad+ lesions
• No relapses
• No confirmed disability worsening
• Atrophy not included in definition
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MRI Predictors of Disability
Prosperini et al, Eur J. Neurol. 2009
New MRI lesions are 5-20x more predictive of future disability than relapses
and disability progression
Progressive disability at 5 yrs,
according to disease activity during first year of IFNβ therapy
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Definition from Clinical Trials
• No new or enlarging T2 lesions
• No new Gad+ lesions
• No relapses
• No confirmed disability worsening
• Atrophy not included in definition
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Disability Worsening
• 2 contributors: – New inflammation (relapses, new lesions)
– “Degeneration” from previous injury
• Driver of progressive MS
• Little impact of current therapies on “degeneration” component
• Disability worsening may be suboptimal metric for current anti-inflammatory therapies
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NEDA with Natalizumab
No relapse, EDSS progression, or new MRI lesions
p < 0.0001 p < 0.0001 p < 0.0001
% D
ise
as
e A
cti
vit
y F
ree
Havrdova et al. Lancet Neurology 2009;8:254-60
NEDA at 2 years:
Placebo Natalizumab
7% 37%
Fold-Increase 5.3
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NEDA with Fingolimod
Kappos et al., AAN 2011
NEDA at 2 years:
Placebo Fingolimod
13% 38%
Fold-Increase 2.9
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NEDA with Dimethyl Fumarate
Giovannoni et al., AAN 2012
NEDA at 2 years:
Placebo Tecfidera
15% 28%
Fold-Increase 1.9
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NEDA with Teriflunomide
Freedman MS et al. AAN Annual Mtg, 2012; New Orleans, LA. PD05.007
14,3 18,4
22,9
0
20
Placebo Teriflunomide 7 mg Teriflunomide 14 mg
No relapses, MRI activity or EDSS worsening
Pro
po
rtio
n o
f P
atie
nts
(%
)
NEDA at 2 years:
Placebo Teriflunomide
14% 23%
Fold-Increase 1.9
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NEDA and MS DMTs
Study Placebo Active Arm Fold
natalizumab (AFFIRM) 7 37 5.3
cladribine (CLARITY) 16 44 2.8
Fingolimod (FREEDOMS) 13 38 2.9
BG-12 (DEFINE) 15 28 1.9
2 years
1 year
Study Placebo Active Arm Fold
natalizumab (AFFIRM) 15 47 3.0
Daclizumab-HYP 11 39 3.5
Pegylated IFNβ1a Q2W 15 34 2.2
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Fingolimod vs IFNß-1a IM
Khatri et al. AAN 2012
NEDA at 1 year:
IFNß-1a (IM)
Fingolimod
34%
46%
Fold-Increase 1.4
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Dimethyl fumarate vs glatiramer acetate
(*) Glatiramer Acetate in CONFIRM was an active comparator arm
NEDA at 2 years:
BG-12 BID GA
18% 12%
Fold-Increase 1.5
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NEDA and MS DMTs
Study Duration Comparator Test Drug Fold
TRANSFORMS IFNß-1a 30 g (IM) vs fingolimod
1 yr 34 46 1.4
CARE MS I IFNß-1a 44 g (SC) vs alemtuzumab
2 yr 27 39 1.4
CARE MS II IFNß-1a 44 g (SC) vs alemtuzumab
2 yr 13.6 32.2 2.4
CONFIRM GA vs BG-12 BID
2 yr 12 20 1.5
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NEDA and Improvement
A d ju s t e d h a z a r d r a t i o : 1 . 9 1 8 , 9 5 % C I : ( 1 . 3 7 4 , 2 . 6 7 8 ) ,
p - v a l u e : 0 . 0 0 0 1
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NEDA and Patient Reported Outcomes
Bates et al. PS 34- CMSC 2009
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NEDA in Clinical Practice
NEDA from general clinical practice cohort
Rotstein et al. JAMA Neurol. 2015;72(2):152-158.
2-year NEDA: positive predictive value of 78% for no progression at 7y
negative predictive value of 41-43%
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Definition from Clinical Trials
• No new or enlarging T2 lesions
• No new Gad+ lesions
• No relapses
• No confirmed disability worsening
• Atrophy not included in definition
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Brain Volume and NEDA
Perez-Miralles et al. Neurol Neuroimmunol Neuroinfl 2015; 21:916-924
1-year brain volume change: -0.86% cut-off yielded sensitivity 71.4% and
specificity 65.5%
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Brain Volume and NEDA
Kappos et al, Mult Scler J, 2015
Atrophy estimated from 4 MRIs over 2 years were used to apply cut-offs
for atrophy progression
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Brain Volume and NEDA
• Caveats: – Published studies are from very controlled image acquisitions – do
not replicate clinical practice
– Published studies followed patients for 1-2 years.
– Individual patients have significant biologic variability in atrophy estimates
• Application of atrophy to routine clinical practice is not ready.
Courtesy Kunio Nakamura, PhD, Cleveland Clinic
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Defining Breakthrough Disease Activity
Sormani and De Stefano, Nature Rev Neurol 2013
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Sormani and De Stefano, Nature Rev Neurol 2013
Non-responders behaved similarly to placebo
Defining Breakthrough Disease Activity
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Canadian MS Working Group Recommendations
Freedman et al, Can J. Neurol Sci, 2013
Change treatment for:
- 1 High, or
- 2 Moderates, or
- 3 Lows
Limitations:
• Somewhat cumbersome
• Doesn’t integrate transition to progressive MS
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Take-home Message
• Goal of MS therapy: No evidence of disease activity (NEDA)
• NEDA is achievable in some patients: Up to 40% NEDA in 2-years with available drugs – Disability progression may be confounded by previous injury
• Treating to Target in the Office: – Requires individualized planning with each patient
– Baseline MRI, follow-up MRI; ? New “baseline” after 3-6 mos?
– Many modifiers: relapse severity and recovery; lesion characteristics
– Recognize transition to progressive MS
• Unresolved issues: Optimal definition, incomplete assessment; integration with treatment risks