Abstract Details

Title Estimating long-term effect of siponimod on disability progression versus virtual placebo in SPMS using RPSFT model: EXPAND data up to 7 years

Topic Multiple Sclerosis

Presentation(s) P6 - Poster Session 6 (5:30 PM-6:30 PM)

Poster/Presentation
Number 12-004

Background In EXPAND, continuous siponimod-treated SPMS patients (siponimod: core+extension) had 22% reduced risk of 6mCDP versus placebo/siponimod-treated patients (placebo: core/siponimod: extension) over up to 5-years (ITT analysis). Placebo to OL siponimod switch after EXPAND-core prevented LT placebo versus siponimod comparison.

Objective Present long-term (LT) efficacy of continuous siponimod (LTCS) versus corrected virtual placebo (LTVP) using Rank Preserving Structural Failure Time (RPSFT) and uncorrected IIT analysis (LTPS) in the overall SPMS population and subgroups of active (a) and non-active (na) SPMS patients with up to 7 years of follow-up in EXPAND.

Design/Methods Analysis included patients who received ≥1 dose of siponimod or placebo in the EXPAND-core and offered a switch to OL siponimod in the ongoing EXPAND-Extension (ITT population: siponimod N=1099, placebo N=546; data cut-off: 10-2020; duration ≤7 years). Time to 6mCDP was assessed for LTCS versus LTVP and LTPS groups.

Results

In the overall population, HR [95% CI] for time to 6mCDP for LTCS was 0.67 [0.52; 0.87] versus LTVP and 0.78 [0.67; 0.92] versus LTPS, resulting in median time to 6mCDP delay by 62% (40.8 vs. 66.1 months) and 29% (51.1 vs. 66.1 months), respectively. In aSPMS patients, HR [95% CI] for time to 6mCDP for LTCS was 0.58 [0.42-0.81] versus LTVP with 79% delay (38.8 vs. 69.3 months) and 0.69 [0.55-0.87] versus LTPS with 44% delay (48.0 vs. 69.3 months) in median time to 6mCDP. Among naSPMS patients, HR [95% CI] for time to 6mCDP for LTCS was 0.80 ([0.51-1.26]) versus LTVP and 0.89 [0.71-1.12] versus LTPS, corresponding to 44% delay (45.5 vs. 65.4 months) and 19% delay (55.1 vs. 65.4 months) in median time to 6mCDP, respectively.

Conclusions

This analysis confirms RPSFT virtual placebo arm utility to estimate LT siponimod treatment benefits and supports sustained efficacy up to 7 years in reducing progression risk and prolonging time to 6mCDP in SPMS patients.

Authors/Disclosures
Bruce A. Cree, MD, PhD, MCR, FAAN (UCSF, Multiple Sclerosis Center) PRESENTER	The institution of Dr. Cree has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Biogen. The institution of Dr. Cree has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for EMD Serono. The institution of Dr. Cree has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Novartis. The institution of Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sanofi. The institution of Dr. Cree has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for TG Therapeutics. The institution of Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Autobahn. The institution of Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Avotres. The institution of Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Alexion. Dr. Cree has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Horizon. Dr. Cree has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Neuron23. Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Boston Pharma. Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Hexal/Sandoz. Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Kyverna. Dr. Cree has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Boston Pharma. Dr. Cree has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Immunic AG. The institution of Dr. Cree has received research support from Genentech. The institution of Dr. Cree has received research support from Kyverna. Dr. Cree has received publishing royalties from a publication relating to health care.
	No disclosure on file
Robert J. Fox, MD, FAAN (Cleveland Clinic)	Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for AB Science. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Janssen. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Biogen. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for BMS. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for EMD Serono. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Genentech. Dr. Fox has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Immunic. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Novartis. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Sanofi. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for TG Therapeutics. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Genzyme. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Siemens. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for INmune Bio. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Lily. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Greenwich Biosciences. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Roche. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Immunic. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Janssen. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for AB Science. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sanofi. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for BMS. The institution of Dr. Fox has received research support from National Institutes of Health. The institution of Dr. Fox has received research support from National MS Society. Dr. Fox has received publishing royalties from a publication relating to health care.
Patrick Vermersch (CHR de Lille)	Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Biogen. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Merck. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sanofi. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Novartis. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Roche. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Teva. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for AB Science. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Imcyse. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for BMS-Celgene. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Ad Scientiam. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sanofi. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Teva. Patrick Vermersch has received personal compensation in the range of $500-$4,999 for serving as an Editor, Associate Editor, or Editorial Advisory Board Member for La revue des microbiotes. The institution of Patrick Vermersch has received research support from Roche. The institution of Patrick Vermersch has received research support from Sanofi.
Gavin Giovannoni, MD (QMUL)	Dr. Giovannoni has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Biogen. Dr. Giovannoni has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Sanofi. Dr. Giovannoni has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Merck KGaA. Dr. Giovannoni has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Novartis. Dr. Giovannoni has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Roche. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Janssen. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Moderna. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Japanese Tobacco. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving as a Consultant for GSK. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Aurinia Pharmaceuticals. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sandoz. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sanofi. Dr. Giovannoni has received personal compensation in the range of $5,000-$9,999 for serving on a Speakers Bureau for Medscape. Dr. Giovannoni has received personal compensation in the range of $5,000-$9,999 for serving on a Speakers Bureau for Oxford Health Policy Forum. Dr. Giovannoni has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Peervoice. Dr. Giovannoni has received personal compensation in the range of $10,000-$49,999 for serving as an Expert Witness for Bristows .
Amit Bar-Or, MD, FRCPC (University of Pennsylvania)	Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Roche Genentech. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Novartis. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Janssen/Actelion. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Atara Biotherapeutics. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Biogen. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for BMS. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Merk/EMD Serono. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sanofi-Genzyme. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Atara Biotherapeutics. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche/Genentech. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Merck/EMD Serono. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sanofi/Genzyme. The institution of Dr. Bar-Or has received research support from Novartis. The institution of Dr. Bar-Or has received research support from Biogen. The institution of Dr. Bar-Or has received research support from Roche/Genentech. The institution of Dr. Bar-Or has received research support from Merck/EMD Serono.
Ralf Gold, MD (Neurologische Universitaetsklinik)	Dr. Gold has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Biogen . Dr. Gold has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Novartis. Dr. Gold has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Roche. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Genzyme. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Bayer Vital. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Eisai Pharamaceuticals. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Dr. Gold has received personal compensation in the range of $10,000-$49,999 for serving as an Editor, Associate Editor, or Editorial Advisory Board Member for SAGE Publishers. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Novartis. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Biogen. The institution of Dr. Gold has received research support from Novartis. The institution of Dr. Gold has received research support from Biogen.
	No disclosure on file
Daniela Piani Meier	Daniela Piani Meier has received personal compensation for serving as an employee of Novartis Pharma AG.
Goeril Karlsson, PhD	Dr. Karlsson has received personal compensation for serving as an employee of Novartis.
Ludwig Kappos, MD, FAAN (RC2NB, University Hospital Basel)	The institution of Dr. Kappos has received research support from Bayer. The institution of Dr. Kappos has received research support from Biogen. The institution of Dr. Kappos has received research support from Genentech. The institution of Dr. Kappos has received research support from Genzyme. The institution of Dr. Kappos has received research support from Janssen. The institution of Dr. Kappos has received research support from Merck Serono. The institution of Dr. Kappos has received research support from Minoryx. The institution of Dr. Kappos has received research support from Novartis. The institution of Dr. Kappos has received research support from Roche. The institution of Dr. Kappos has received research support from Sanofi. The institution of Dr. Kappos has received research support from Santhera. The institution of Dr. Kappos has received research support from Swiss MS Society, Swiss National Research Foundation, European Union, Roche Research Foundation, Innosuisse. The institution of Dr. Kappos has received research support from Shionogi. The institution of Dr. Kappos has received research support from Japan Tobacco. The institution of Dr. Kappos has received research support from Auriga Vision AG. The institution of Dr. Kappos has received research support from EMD Serono. The institution of Dr. Kappos has received research support from Glaxo Smith Kline. The institution of Dr. Kappos has received research support from Wellmera AG. The institution of Dr. Kappos has received research support from Eli Lilly (Suisse) SA. The institution of Dr. Kappos has received research support from Bristol Myers Squibb. The institution of Dr. Kappos has received research support from Celltrion Inc. Dr. Kappos has received intellectual property interests from a discovery or technology relating to health care.