Accessibility Statement Skip Navigation
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • Data Privacy
  • Français
  • my CNW 
    • Login
    • Register
  • Client Login 
    • Online Member Centre
    • Next Gen Communications Cloud
    • Cision Communications Cloud®
  • Sign Up
  • Send a Release
Return to PR Newswire homepage
  • News
  • Products
  • Contact
When typing in this field, a list of search results will appear and be automatically updated as you type.

Searching for your content...

No results found. Please change your search terms and try again.
Advanced Search
  • News in Focus
      • Browse News Releases

      • All News Releases
      • All Public Company
      • News Releases Overview

      • Multimedia Gallery

      • All Multimedia
      • All Photos
      • All Videos
      • Multimedia Gallery Overview

      • Trending Topics

      • All Trending Topics
  • Business
      • Auto & Transportation

      • All Automotive & Transportation
      • Aerospace, Defense
      • Air Freight
      • Airlines & Aviation
      • Automotive
      • Maritime & Shipbuilding
      • Railroads and Intermodal Transportation
      • Supply Chain/Logistics
      • Transportation, Trucking & Railroad
      • Travel
      • Trucking and Road Transportation
      • Auto & Transportation Overview

      • View All Auto & Transportation

      • Business Technology

      • All Business Technology
      • Blockchain
      • Broadcast Tech
      • Computer & Electronics
      • Computer Hardware
      • Computer Software
      • Data Analytics
      • Electronic Commerce
      • Electronic Components
      • Electronic Design Automation
      • Financial Technology
      • High Tech Security
      • Internet Technology
      • Nanotechnology
      • Networks
      • Peripherals
      • Semiconductors
      • Business Technology Overview

      • View All Business Technology

      • Entertain­ment & Media

      • All Entertain­ment & Media
      • Advertising
      • Art
      • Books
      • Entertainment
      • Film and Motion Picture
      • Magazines
      • Music
      • Publishing & Information Services
      • Radio & Podcast
      • Television
      • Entertain­ment & Media Overview

      • View All Entertain­ment & Media

      • Financial Services & Investing

      • All Financial Services & Investing
      • Accounting News & Issues
      • Acquisitions, Mergers and Takeovers
      • Banking & Financial Services
      • Bankruptcy
      • Bond & Stock Ratings
      • Conference Call Announcements
      • Contracts
      • Cryptocurrency
      • Dividends
      • Earnings
      • Earnings Forecasts & Projections
      • Financing Agreements
      • Insurance
      • Investments Opinions
      • Joint Ventures
      • Mutual Funds
      • Private Placement
      • Real Estate
      • Restructuring & Recapitalization
      • Sales Reports
      • Shareholder Activism
      • Shareholder Meetings
      • Stock Offering
      • Stock Split
      • Venture Capital
      • Financial Services & Investing Overview

      • View All Financial Services & Investing

      • General Business

      • All General Business
      • Awards
      • Commercial Real Estate
      • Corporate Expansion
      • Earnings
      • Environmental, Social and Governance (ESG)
      • Human Resource & Workforce Management
      • Licensing
      • New Products & Services
      • Obituaries
      • Outsourcing Businesses
      • Personnel Announcements
      • Real Estate Transactions
      • Residential Real Estate
      • Small Business Services
      • Socially Responsible Investing
      • Surveys, Polls and Research
      • Trade Show News
      • General Business Overview

      • View All General Business

  • Science & Tech
      • Consumer Technology

      • All Consumer Technology
      • Artificial Intelligence
      • Blockchain
      • Cloud Computing/Internet of Things
      • Computer Electronics
      • Computer Hardware
      • Computer Software
      • Consumer Electronics
      • Cryptocurrency
      • Data Analytics
      • Electronic Commerce
      • Electronic Gaming
      • Financial Technology
      • Mobile Entertainment
      • Multimedia & Internet
      • Peripherals
      • Social Media
      • STEM (Science, Tech, Engineering, Math)
      • Supply Chain/Logistics
      • Wireless Communications
      • Consumer Technology Overview

      • View All Consumer Technology

      • Energy & Natural Resources

      • All Energy
      • Alternative Energies
      • Chemical
      • Electrical Utilities
      • Gas
      • General Manufacturing
      • Mining
      • Mining & Metals
      • Oil & Energy
      • Oil and Gas Discoveries
      • Utilities
      • Water Utilities
      • Energy & Natural Resources Overview

      • View All Energy & Natural Resources

      • Environ­ment

      • All Environ­ment
      • Conservation & Recycling
      • Environmental Issues
      • Environmental Policy
      • Environmental Products & Services
      • Green Technology
      • Natural Disasters
      • Environ­ment Overview

      • View All Environ­ment

      • Heavy Industry & Manufacturing

      • All Heavy Industry & Manufacturing
      • Aerospace & Defense
      • Agriculture
      • Chemical
      • Construction & Building
      • General Manufacturing
      • HVAC (Heating, Ventilation and Air-Conditioning)
      • Machinery
      • Machine Tools, Metalworking and Metallurgy
      • Mining
      • Mining & Metals
      • Paper, Forest Products & Containers
      • Precious Metals
      • Textiles
      • Tobacco
      • Heavy Industry & Manufacturing Overview

      • View All Heavy Industry & Manufacturing

      • Telecomm­unications

      • All Telecomm­unications
      • Carriers and Services
      • Mobile Entertainment
      • Networks
      • Peripherals
      • Telecommunications Equipment
      • Telecommunications Industry
      • VoIP (Voice over Internet Protocol)
      • Wireless Communications
      • Telecomm­unications Overview

      • View All Telecomm­unications

  • Lifestyle & Health
      • Consumer Products & Retail

      • All Consumer Products & Retail
      • Animals & Pets
      • Beers, Wines and Spirits
      • Beverages
      • Bridal Services
      • Cannabis
      • Cosmetics and Personal Care
      • Fashion
      • Food & Beverages
      • Furniture and Furnishings
      • Home Improvement
      • Household, Consumer & Cosmetics
      • Household Products
      • Jewelry
      • Non-Alcoholic Beverages
      • Office Products
      • Organic Food
      • Product Recalls
      • Restaurants
      • Retail
      • Supermarkets
      • Toys
      • Consumer Products & Retail Overview

      • View All Consumer Products & Retail

      • Entertain­ment & Media

      • All Entertain­ment & Media
      • Advertising
      • Art
      • Books
      • Entertainment
      • Film and Motion Picture
      • Magazines
      • Music
      • Publishing & Information Services
      • Radio & Podcast
      • Television
      • Entertain­ment & Media Overview

      • View All Entertain­ment & Media

      • Health

      • All Health
      • Biometrics
      • Biotechnology
      • Clinical Trials & Medical Discoveries
      • Dentistry
      • FDA Approval
      • Fitness/Wellness
      • Health Care & Hospitals
      • Health Insurance
      • Infection Control
      • International Medical Approval
      • Medical Equipment
      • Medical Pharmaceuticals
      • Mental Health
      • Pharmaceuticals
      • Supplementary Medicine
      • Health Overview

      • View All Health

      • Sports

      • All Sports
      • General Sports
      • Outdoors, Camping & Hiking
      • Sporting Events
      • Sports Equipment & Accessories
      • Sports Overview

      • View All Sports

      • Travel

      • All Travel
      • Amusement Parks and Tourist Attractions
      • Gambling & Casinos
      • Hotels and Resorts
      • Leisure & Tourism
      • Outdoors, Camping & Hiking
      • Passenger Aviation
      • Travel Industry
      • Travel Overview

      • View All Travel

  • Policy & Public Interest
      • Policy & Public Interest

      • All Policy & Public Interest
      • Advocacy Group Opinion
      • Animal Welfare
      • Canadian Federal Government
      • Canadian Municipal Government
      • Canadian Provincial Government
      • Corporate Social Responsibility
      • Domestic Policy
      • Economic News, Trends, Analysis
      • Education
      • Environmental
      • European Government
      • FDA Approval
      • Federal and State Legislation
      • Federal Executive Branch & Agency
      • Foreign Policy & International Affairs
      • Homeland Security
      • Labor & Union
      • Legal Issues
      • Natural Disasters
      • Not For Profit
      • Patent Law
      • Public Safety
      • Trade Policy
      • Policy & Public Interest Overview

      • View All Policy & Public Interest

  • People & Culture
      • People & Culture

      • All People & Culture
      • Aboriginal, First Nations & Native American
      • African American
      • Asian American
      • Children
      • Diversity, Equity & Inclusion
      • Hispanic
      • Lesbian, Gay & Bisexual
      • Men's Interest
      • People with Disabilities
      • Religion
      • Senior Citizens
      • Veterans
      • Women
      • People & Culture Overview

      • View All People & Culture

  • Advanced Search
  • Overview
  • Cision Communications Cloud®
  • Monitoring
  • Distribution
  • Multimedia
  • Guaranteed Paid Placement
  • AI Tools
  • IR
  • Become a Client
  • Request a Demo
  • Editorial Bureaus
  • Partnerships
  • General Enquiries
  • Media
  • Worldwide Offices
  • Hamburger menu
  • Cision Canada
  • Send a Release
  • FR
    • Phone

    • 877-269-7890 from 8 AM - 10 PM ET

    • ALL CONTACT INFO
    • Contact Cision

      877-269-7890
      from 8 AM - 10 PM ET

  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR
  • News in Focus
    • Browse All News
    • Multimedia Gallery
    • Trending Topics
  • Business
    • Auto & Transportation
    • Business Technology
    • Entertain­ment & Media
    • Financial Services & Investing
    • General Business
  • Science & Tech
    • Consumer Technology
    • Energy & Natural Resources
    • Environ­ment
    • Heavy Industry & Manufacturing
    • Telecomm­unications
  • Lifestyle & Health
    • Consumer Products & Retail
    • Entertain­ment & Media
    • Health
    • Sports
    • Travel
  • Policy & Public Interest
    • Policy & Public Interest
  • People & Culture
    • People & Culture
  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR
  • Overview
  • Cision Communications Cloud®
  • Monitoring
  • Distribution
  • Multimedia
  • Guaranteed Paid Placement
  • AI Tools
  • IR
  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR
  • Become a Client
  • Request a Demo
  • Editorial Bureaus
  • Partnerships
  • General Enquiries
  • Media
  • Worldwide Offices
  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR

PREVYMIS™ (letermovir) Available in Canada in Late December 2017 for the Prophylaxis of Cytomegalovirus (CMV) Infection in Adult CMV-seropositive Recipients of an Allogeneic Hematopoietic Stem Cell Transplant Français


News provided by

Merck Canada Inc.

Dec 14, 2017, 13:19 ET

Share this article

Share toX

Share this article

Share toX

KIRKLAND, QC, Dec. 14, 2017 /CNW Telbec/ - Merck & Co., Inc. (NYSE: MRK), known as MSD outside Canada and the United States, announced today that the recently approved PREVYMIS™ (letermovir) is expected to be available in Canada by the end of December 2017. The product is indicated for the prophylaxis of cytomegalovirus (CMV) infection in adult CMV-seropositive recipients [R+] of an allogeneic hematopoietic stem cell transplant (HSCT).

CMV is a common and potentially serious viral infection in allogeneic HSCT recipients. CMV-seropositive patients who undergo an HSCT are at high risk for CMV reactivation. Any level of CMV infection is associated with increased mortality in HSCT patients.

In the pivotal Phase 3 clinical trial supporting approval, significantly fewer patients in the letermovir group (38%, n=122/325) compared to the placebo group (61%, n=103/170) developed clinically significant CMV infection, discontinued treatment or had missing data through Week 24 post-HSCT [treatment difference: -23.5 (95% confidence interval -32.5 to -14.6), (p<0.0001)], the primary efficacy endpoint. Patients in both arms with clinically significant CMV infection were discontinued from trial and began anti-CMV therapy according to local practice. All-cause mortality in patients receiving letermovir was lower compared to placebo, 12% vs. 17%, respectively, at Week 24 post-transplant. In this study, the incidence of bone marrow suppression in the letermovir group was comparable to the placebo group. The median time to engraftment was 19 days in the letermovir group and 18 days in the placebo group.

Clinical Data Supporting Letermovir
To evaluate prophylaxis with letermovir as a preventive strategy for CMV infection in transplant recipients at high risk for CMV reactivation, the efficacy of letermovir was assessed in a multicenter, double-blind, placebo-controlled Phase 3 trial in adult CMV-seropositive recipients [R+] of an allogeneic HSCT. Patients were randomized (2:1) to receive either letermovir at a dose of 480 mg once daily adjusted to 240 mg when co-administered with cyclosporine, or placebo. Study drug was initiated after HSCT (at any time from Day 0-28 post-transplant) and continued through Week 14 post-transplant. Patients were monitored through Week 24 post-transplant for the primary efficacy endpoint, with continued follow-up through Week 48 post-transplant. The primary efficacy endpoint was the incidence of clinically significant CMV infection through Week 24 post-transplant, defined as the occurrence of either CMV end-organ disease, or initiation of anti-CMV pre-emptive therapy based on documented CMV viremia and the clinical condition of the patient. The Non-Completer equals Failure approach was used, where patients who discontinued from the trial prior to Week 24 post-transplant or had a missing outcome at Week 24 post-transplant were counted as failures.

Among the 565 treated patients, 34% were engrafted at baseline and 30% had one or more factors associated with additional risk for CMV reactivation. The most common primary reasons for transplant were acute myeloid leukemia (38%), myelodysplastic syndrome (15%), and lymphoma (13%). Fewer patients in the letermovir group had clinically significant CMV infection by Week 24 post-HSCT compared to the placebo group, 18% vs. 42%, respectively. At Week 14 post-transplant, the Kaplan-Meier (K-M) event rate for clinically significant CMV infection was 6.8% in the letermovir group compared to 41.3% in the placebo group. Letermovir demonstrated significant benefit compared to placebo in time to clinically significant CMV infection through Week 24 post-HSCT (18.9% vs. 44.3% cumulative rate; stratified log-rank test, two-sided p-value <0.0001).

Efficacy consistently favoured letermovir across subgroups including low and high risk for CMV reactivation, stem cell source, donor mismatch, haploidentical transplant, conditioning regimens, and concomitant immunosuppressive regimens.

Post-hoc analysis demonstrated that among PREVYMIS-treated patients, inclusion in the high-risk stratum for CMV reactivation at baseline, occurrence of graft-versus-host disease (GVHD), and steroid use at any time after randomization may be associated with the development of clinically significant CMV infection between Week 14 and Week 24 post-transplant.

The Kaplan-Meier event rate for all-cause mortality in the PREVYMIS vs. placebo groups was 12% vs. 17% at Week 24 post-transplant, and 24% vs. 28% at Week 48 post-transplant. The most commonly reported adverse reactions occurring in at least 1% of subjects in the letermovir group through Week 24 post-transplant and at a frequency greater than placebo were: nausea, diarrhea, and vomiting.

About PREVYMIS (letermovir)
PREVYMIS is a member of a new class of non-nucleoside CMV inhibitors (3,4 dihydro-quinazolines) and inhibits viral replication by specifically targeting the viral terminase complex. Cross resistance is not likely with drugs outside of this class. Under an agreement signed in 2012, Merck (through a subsidiary) purchased worldwide rights to develop and commercialize letermovir from AiCuris GmbH & Co KG (www.aicuris.com). For more information, please consult the Canadian PREVYMIS (letermovir) product monograph here.

About CMV and Treatment
CMV is a common virus that infects people of all ages. Many adults in Canada are CMV seropositive, meaning they have CMV antibodies in their blood, indicating a previous exposure to or primary infection with CMV. People with normal immune systems rarely develop CMV symptoms after initial infection, with the virus typically remaining inactive or latent in the body for life. A weakened immune system may give the virus a chance to reactivate, potentially leading to symptomatic disease or a secondary infection due to other pathogens. CMV disease can lead to end-organ damage, including gastrointestinal tract disease, pneumonia or retinitis. Transplant recipients who develop CMV infection post-transplant are at increased risk for transplant failure and death. CMV prophylaxis with certain existing antivirals has been associated with drug-specific effects, including myelosuppression and renal toxicity, in HSCT recipients.

About Merck
For over a century, Merck, a leading global biopharmaceutical company known as MSD outside of the United States and Canada, has been inventing for life, bringing forward medicines and vaccines for many of the world's most challenging diseases. Through our prescription medicines, vaccines, biologic therapies and animal health products, we work with customers and operate in more than 140 countries to deliver innovative health solutions. We also demonstrate our commitment to increasing access to health care through far-reaching policies, programs and partnerships. Today, Merck continues to be at the forefront of research to advance the prevention and treatment of diseases that threaten people and communities around the world - including cancer, cardio-metabolic diseases, emerging animal diseases, Alzheimer's disease and infectious diseases including HIV and Ebola.

For more information about our operations in Canada, visit www.merck.ca and connect with us on YouTube and Twitter @MerckCanada.

Forward-Looking Statement
This news release of Merck & Co., Inc., Kenilworth, N.J., USA (the "company") includes "forward-looking statements" within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company's management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline products that the products will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company's ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company's patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company's 2016 Annual Report on Form 10-K and the company's other filings with the Securities and Exchange Commission (SEC) available at the SEC's Internet site (www.sec.gov).

*Please consult the Canadian PREVYMIS (letermovir) product monograph here.

SOURCE Merck Canada Inc.

For Media Contact: Astrid Morin, NATIONAL Public Relations, (514) 843-2374; For Investor Contact: Amy Klug, (908) 740-1898

Related Links

www.merck.ca

Modal title

Organization Profile

Merck Canada Inc.

    Also from this source

  • Canada's Drug Agency Recommends WINREVAIR® (sotatercept) for Reimbursement

  • Health Canada Approves KEYTRUDA® as monotherapy for the treatment of adult and pediatric patients with unresectable or metastatic microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) solid tumours that have progressed following prior treatment and who have no satisfactory alternative treatment options

  • Merck Canada and the pan-Canadian Pharmaceutical Alliance (pCPA) successfully complete negotiations for WELIREG® (belzutifan)

Contact Cision

  • 866-245-2317
    from 8 AM - 10 PM ET
  • Become a Client
  • Request a Demo
  • Editorial Bureaus
  • Partnerships
  • General Enquiries
  • Media

Products

  • Cision Communications Cloud®
  • Media Monitoring
  • Content Distribution
  • Multimedia Distribution
  • Measurement & Analytics
  • Investor Relations

About

  • About Cision Canada
  • About Cision
  • Media Partners
  • Careers
  • Accessibility Statement
  • APAC
  • APAC - Simplified Chinese
  • APAC - Traditional Chinese
  • Brazil
  • Canada
  • Czech
  • Denmark
  • Finland
  • France
  • Germany
  • India
  • Indonesia
  • Israel
  • Japan
  • Korea
  • Mexico
  • Middle East
  • Middle East - Arabic
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Russia
  • Slovakia
  • Spain
  • Sweden
  • United States
  • Vietnam

My Services

  • All News Releases
  • Online Member Centre
  • Next Gen Communications Cloud
  • Cision Communications Cloud®
  • my CNW

Do not sell or share my personal information:

  • Submit via [email protected] 
  • Call Privacy toll-free: 877-297-8921

Contact Cision

Products

About

My Services
  • All News Releases
  • Online Member Centre
  • Next Gen Communications Cloud
  • Cision Communications Cloud
  • my CNW
877-269-7890
from 8 AM - 10 PM ET
  • Terms of Use
  • Information Security Policy
  • Site Map
  • Cookie Settings
  • Accessibility Statement
Copyright © 2025 CNW Group Ltd. All Rights Reserved. A Cision company.