Sanofi Pasteur SA Pharmaceutical company announced on Friday, December 1, 2017 that it had ended development of an experimental vaccine for Clostridium difficile infection, after an early look at late-stage trial results indicated a low probability for success.
About three million Americans are infected annually with the bacterium – also known as C. diff – ———
The move marks the second blow in a week to Sanofi’s vaccine program after the Paris-based company on Wednesday said use of its new dengue vaccine will be strictly limited due to evidence it can worsen the disease in people who have not previously been exposed to the mosquito-borne virus.
Sanofi’s Dengvaxia vaccine is the world’s first approved shot for preventing dengue infection, which kills about 20,000 people a year and infects hundreds of millions.
The company said in a statement that all data from vaccinated volunteers in the C. diff trial will continue to be analyzed for more information and shared with the scientific community.
As many as 30,000 Americans die each year from the bacterium, usually after recurrences of infection. The infections are typically the result of taking antibiotics, which wipe out friendly bacteria in the colon that normally keep C. diff under control.
Sanofi said it will continue to focus on six other vaccine projects in development.
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Every scientific research and development, every clinical trial in progress is a glimmer of hope………..HOPE for clinically safe and approved avenues to prevent and treat a C. difficile infection.
Listed below you will find a web link that will redirect you to obtain information that pertains to organizations who have on-going C. difficile Prevention and Treatment clinical trials in progress.
Click on each organization’s website link to review their research and clinical trial study opportunities — Inquire if you or your loved one qualify to participate in a study. Please direct all clinical trial questions to the companies offering the clinical trials. Thank you.
To Learn More About Clinical Trials —
ClinicalTrials.gov is a registry and results database of publicly and privately supported clinical studies of human participants conducted around the world. Learn more About Clinical Studies and About This Site, including relevant History, Policies, and Laws. Click on the link below to be redirected to the clinicaltrials.gov website:
Clinical trials are conducted in a series of steps, called phases – each phase is designed to answer a separate research question.
Phase I: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase II: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase III: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase IV: Studies are done after the drug or treatment has been marketed to gather information on the drug’s effect in various populations and any side effects associated with long-term use.
“The C Diff Foundation’s mission is to educate and advocate for Clostridium difficile infection prevention, treatments, support, and environmental safety worldwide.
The C Diff Foundation’s organization is comprised of 100% volunteering members who are dedicated to our mission and adhere to the Foundation’s Code of Ethics
which prohibits paid endorsements and/or paid promotion of products, services, medications, or clinical studies in progress. All website postings are strictly for
All website entries, public presentations, and workshops are to raise C. diff. infection awareness in all areas of the C Diff Foundation’s mission statement, including infection prevention, diagnostics, sepsis, healthcare-associated infections, antimicrobial resistance, antibiotic stewardship and provide education on all the above.”
Pfizer Announces Positive Top-Line Results from Phase 2 Study of Investigational
Clostridium difficile Vaccine for the
Prevention of C. difficile Infection
Pfizer’s C. difficile Vaccine Candidate to Commence Phase 3 Study in First Half of 2017
C. difficile is an Increasing Worldwide Concern Associated with Approximately 29,000 Annual Deaths in the U.S. Alone
On Thursday, January 26, 2017 Pfizer Inc. announced that the Phase 2 study
evaluating the Company’s Clostridium difficile (C. difficile) vaccine
candidate, PF-06425090, provided positive data, based on a pre-planned interim analysis.
The randomized Phase 2 study (NCT02561195) examined the safety, tolerability, and immunogenicity of the vaccine in healthy adults 65 to 85 years of age. Pfizer’s vaccine candidate is designed to help prevent C. difficile infection (CDI), which can include life-threatening diarrhea and pseudomembranous colitis,1 by inducing a functional antibody response capable of neutralizing the two main disease-causing toxins produced by C. difficile (toxins A and B).2
“Despite improved infection control measures, C. difficile disease continues to rise, further augmenting an already urgent public health threat with particular negative impact on older adults,” said Kathrin Jansen, Ph.D., senior vice president and head of Vaccine Research and Development for Pfizer Inc. “We are very encouraged by these interim immunogenicity and safety results demonstrating robust increases in vaccine-elicited neutralizing antibodies to both toxins, that we believe could provide protection against C. difficile disease.”
Based on findings from the pre-planned interim analysis, Pfizer’s C. difficile vaccine candidate will progress into Phase 3 in the first half of 2017.
Pfizer’s C. difficile vaccine candidate was granted Fast Track designation by the U.S. Food and Drug Administration (FDA) in August 2014. The FDA’s Fast Track designation is designed to facilitate the development and expedite the review of new drugs and vaccines intended to treat or prevent serious conditions and address an unmet medical need.3 About the Phase 2 Study The Phase 2 study (NCT02561195) was a randomized, placebo-controlled, observer-blinded study of more than 850 healthy adults 65-85 years of age, evaluating the safety, tolerability, and immunogenicity of two dose levels (100 µg and 200 µg) of Pfizer’s C. difficile vaccine candidate on two different three-dose vaccination schedules (Days 1/8/30 and Months 0/1/6). More information about the PF-06425090 Phase 2 study can be found at www.clinicaltrials.gov (link is external).
About Clostridium difficile
Clostridium difficile (C. difficile) is a spore-forming pathogen that typically causes symptoms in individuals with altered gut microbial flora, releasing toxins that can result in a range of disease manifestations from asymptomatic colonization to diarrhea, pseudomembranous colitis, toxic megacolon, intestinal perforation, or, in the most severe cases, death.4,5 C. difficile, classified by the U.S. Centers for Disease Control and Prevention (CDC) as an urgent public health threat in 2013,6 is the most common cause of antibiotic-associated diarrhea in the healthcare setting and an increasing concern worldwide.7 Responsible for approximately 453,000 U.S. cases (associated with 29,000 deaths) in 2011,8 CDI disproportionately affects older adults, with nearly two-thirds of cases in patients over the age of 65.9 Current treatment options may offer temporary therapeutic improvements, but will not provide long-term protection.10 Up to 25% of patients treated for a first episode of CDI experience a first recurrence of infection, and up to 65% of those patients who experience a first recurrence will experience multiple recurrences.1,11
Pfizer Inc.: Working together for a healthier world
At Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives. We strive to set the standard for quality, safety and value in the discovery, development and manufacture of healthcare products. Our global portfolio includes medicines and vaccines as well as many of the world’s best-known consumer healthcare products. Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time. Consistent with our responsibility as one of the world’s premier innovative biopharmaceutical companies, we collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world. For more than 150 years, Pfizer has worked to make a difference for all who rely on us. For more information, please visit us at www.pfizer.com. In addition, to learn more, follow us on Twitter at @Pfizer and @Pfizer_News, LinkedIn, YouTube, and like us on Facebook at Facebook.com/Pfizer.
DISCLOSURE NOTICE: The information contained in this release is as of January 26, 2017. Pfizer assumes no obligation to update forward-looking statements contained in this release as the result of new information or future events or developments. This release contains forward-looking information about a vaccine candidate, PF-06425090, including its potential benefits and the expected timing of commencement of a Phase 3 study, that involves substantial risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Risks and uncertainties include, among other things, the uncertainties inherent in research and development, including the ability to meet anticipated clinical trial commencement and completion dates and regulatory submission dates, as well as the possibility of unfavorable clinical trial results, including unfavorable new clinical data and additional analyses of existing clinical data; risks associated with interim data; whether and when any biologics license applications may be filed for PF-06425090; whether and when any such applications may be approved by regulatory authorities, which will depend on the assessment by such regulatory authorities of the benefit-risk profile suggested by the totality of the efficacy and safety information submitted; decisions by regulatory authorities regarding labeling and other matters that could affect the availability or commercial potential of PF-06425090 and competitive developments. A further description of risks and uncertainties can be found in Pfizer’s Annual Report on Form 10-K for the fiscal year ended December 31, 2015 and in its subsequent reports on Form 10-Q, including in the sections thereof captioned “Risk Factors” and “Forward-Looking Information and Factors That May Affect Future Results,” as well as in its subsequent reports on Form 8-K, all of which are filed with the U.S. Securities and Exchange Commission and available at www.sec.gov (link is external) and www.pfizer.com.
1 Cohen SH et al. Infect Control Hosp Epidemiol. 2010;31:431-455.
2 Gerding DN and Young VB. Clostridium difficile infection. In: Mandell, Douglas, and Bennett’s Principles and Practice of Infectious Diseases, 8th ed. Bennett JE, Dolin R, Blaser MJ (eds). Philadelphia, PA: Elsevier Saunders; 2015.
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“C. diff. Spores and More,” Global Broadcasting Network – innovative and educational interactive healthcare talk radio program discusses
Upcoming Episode: “An Oral Vaccine For A C. difficile Infection”
With Our Guest: Professor Simon Cutting
Join us as we discuss “An Oral Vaccine for C. difficile Infection” with Professor Simon Cutting from the Royal Holloway, University of London in the UK, and Chairperson of the
C Diff Foundation’s Research and Development Committee and Research Community.
Follow us as we discuss the probable causes of C. diff. infection and why it is so prevalent in today’s society. Learn what is required to prevent C. diff. infections, and gain a better understanding of the research being focused towards creating prevention against this life-threatening infection; Clostridium difficile.
MORE ABOUT OUR GUEST:
Professor Simon Cutting, PhD
Professor Simon M. Cutting is a bacterial geneticist with over 25 years of experience with Bacillus since graduating from Oxford University with a D. Phil in 1986. His D.Phil was on understanding the genetic control of spore formation in Bacillus subtilis. After spending 7 years in the renowned laboratory of Professor Richard Losick at Harvard University Biological Laboratories (USA) he spent 3 years as an Assistant Professor at the University of Pennsylvania Medical School in Philadelphia.He returned to the UK in 1996 and since then has worked on developing bacterial spores as novel oral vaccines at the Royal Holloway, University of London.The Cutting lab has developed a number of prototype oral vaccines and is now entering a ‘first in man’ phase 1/IIa clinical trial of a prototype oral vaccine to Clostridium difficile(www.cdvax.org). Professor Cutting is from the Royal Holloway University of London, UK, and Chairperson of the C Diff Foundation’s Research & Development Committee.
“C. diff. Spores and More “ Global Broadcasting Network spotlights world renowned topic experts, research scientists, healthcare professionals, organization representatives,C. diff. survivors, board members, and their volunteers who are all creating positive changes in the
C. diff. community and more.
Through their interviews, the C Diff Foundation mission will connect, educate, and empower many worldwide.
Questions received through the show page portal will be reviewed and addressed by the show’s Medical Correspondent, Dr. Fred Zar, MD, FACP, Dr. Fred Zar is a Professor of Clinical Medicine, Vice Head for Education in the Department of Medicine, and Program Director of the Internal Medicine Residency at the University of Illinois at Chicago. Over the last two decades he has been a pioneer in the study of the treatment of Clostridium difficile disease and the need to stratify patients by disease severity.
Merck is nearing FDA approval for its Clostridium difficile-fighting antibody, picking up the agency’s priority review designation with the promise of a shortened vetting process.
The FDA accepted Merck’s application for bezlotoxumab and promised to hand down a final decision by July 23, shortening the standard 10-month review to 6 months.
The treatment, licensed from Medarex in 2009, is an antibody designed to block C. difficile toxin B, which damages the gut wall and leads to inflammation that trigger abdominal pain and diarrhea. In Phase III, adding bezlotoxumab to standard of care significantly reduced C. difficile recurrence in high-risk patients after 12 weeks, Merck disclosed in September.
Bezlotoxumab is among the most advanced assets in Merck’s infectious disease pipeline, bolstered by the company’s $9.5 billion buyout of antibiotics specialist Cubist Pharmaceuticals last year. Merck is also at work on therapies for pneumonia, bacterial infection and HIV as it awaits approval for a combination treatment targeting hepatitis C.
FULL STATEMENT FROM MERCK:
Merck known as MSD outside the United States and Canada January 28, 2016 (today) announced that the U.S. Food and Drug Administration (FDA) has accepted for review the Biologics License Application (BLA) for bezlotoxumab, an investigational antitoxin for prevention of Clostridium difficile (C. difficile) infection recurrence.
The FDA granted Priority Review for bezlotoxumab, with a Prescription Drug User Fee Act (PDUFA) action date of July 23, 2016.
The company also has filed a marketing authorization application for bezlotoxumab with the European Medicines Agency (EMA) that is currently under review.
“Recurrence is a major challenge with C. difficile infection, one of the most common healthcare-associated infections in U.S. hospitals,” said Dr. Roy Baynes, senior vice president of clinical development, Merck Research Laboratories. “Currently, there are no therapies approved for the prevention of C. difficile infection recurrence. As part of Merck’s commitment to the fight against infectious diseases, we look forward to continuing to work with the FDA and EMA to bring forward this novel medicine for appropriate patients.”
The application for bezlotoxumab is based in part on data from the pivota lMODIFY I and MODIFY II clinical trials. Data from these trials were previously presented at the Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC) and International Congress of Chemotherapy and Infection (ICC) 2015 joint meeting.
Bezlotoxumab is an investigational antitoxin given in conjunction with standard of care antibiotics that are used in the treatment of C. difficile infection. It is not an antibiotic. Bezlotoxumab is designed to neutralize C. difficile toxin B, a toxin that can damage the gut wall and cause inflammation, leading to C. difficile-associated diarrhea.
Today’s Merck is a global health care leader working to help the world be well. Merck is known as MSD outside the United States and Canada. 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. For more information, visitwww.merck.com and connect with us on Twitter, Facebook, YouTube and LinkedIn.
Forward-Looking Statement of Merck & Co. Inc., Kenilworth, NJ, USA
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 2014 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).
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