Category Archives: Recurrent C. diff. Prevention Clinical Trials

Learn More About Clostridium difficile (C.diff., C.difficile) infection and Recurrent CDI Clinical Trials In Progress

 

 

 

The C Diff Foundation has implemented a global campaign to raise awareness of Clostridium difficile infection (C.difficile) clinical trials, clinical studies, clinical research and observational studies evaluating interventions for C. difficile prevention, treatments, and environmental safety.

In the USA: Nearly half a million Americans suffer from Clostridium difficile (C. diff.) infections in a single year according to a study released in 2015 by the Centers for Disease Control and Prevention (CDC). Approximately 29,000 patients died within 30 days of the initial diagnosis of C. difficile. Of those, about 15,000 deaths were estimated to be directly attributable to C. difficile infections making C. difficile a very important cause of infectious disease death in the United States.

“Clostridium difficile infections are not only the most common cause of healthcare-acquired infections in the United States but also very common in the community in younger patients who previously were thought to be less susceptible to C. difficile. The rate of recurrent C. difficile infections is increasing tremendously and this increase is higher than the rate of primary C. difficile infections,” stated Sahil Khanna, MD, Assistant Professor of Medicine Division of Gastroenterology and Hepatology, Director of the C. difficile Clinic, Fecal Microbiota Transplantation program and C. difficile related Clinical Trials, Mayo Clinic, Rochester, MN.

Dr. Khanna also added, “It is imperative and important for clinical trials to be done to advance the development of new treatments, new medications, and new ways to prevent and treat Clostridium difficile infections.”

Individuals volunteer to participate in clinical trials in hopes of improving their own health, to access treatments that might not be available otherwise, often because they are new and not yet widely available. They help others by contributing to advances in medicine. There can also be potential risks participating in clinical trials and clinical studies. All of the known risks associated with a particular trial and or study will be discussed during the informed consent process. It will be thoroughly explained in the informed consent document that a volunteer will receive from the research staff prior to participating in any study.

To learn more about clinical research (e.g., Clostridium difficile, C.difficile) visit the U.S. Food and Drug Administration http://www.fda.gov or telephone 1-800-835-4709, The National Institutes of Health (NIH) http://www.nih.gov and ClinicalTrials.gov.

“Clinical trials are vital to improving our knowledge about how best to prevent and treat C. difficile infections. Informing patients of clinical trials is important, and in recent years several clinical trials have led to significant improvements in the treatments available for patients with C. difficile infections,” stated Mark Wilcox, MD, FRCPath, Consultant Microbiologist, Head of Microbiology and Academic Lead of Pathology Leeds Teaching Hospitals, Professor of Medical Microbiology University of Leeds Institute of Biomedical and Clinical Sciences, Lead on Clostridium difficile for Public Health England, UK.

About the U.S. Food and Drug Administration (FDA):
The FDA is responsible for protecting the public health by assuring that foods are safe, wholesome, sanitary and properly labeled; ensuring that human and veterinary drug, and vaccines and other biological products and medical devices intended for human use are safe and effective. FDA’s responsibilities extend to the 50 United States, the District of Columbia, Puerto Rico, Guam, the Virgin Islands, American Samoa, and other U.S. territories and possessions.

About the National Institutes of Health (NIH):
The National Institutes of Health (NIH), a part of the U.S. Department of Health and Human Services, is the nation’s medical research agency making important discoveries that improve health and save lives.

About ClinicalTrials.gov
ClinicalTrials.gov is a Web-based resource that provides patients, their family members, health care professionals, researchers, and the public with easy access to information on publicly and privately supported clinical studies on a wide range of diseases and conditions.

Zinplava has been launched by MSD in the UK

MSD has launched Zinplava in the UK, offering patients a novel therapeutic option for the prevention of Clostridium difficile recurrence.

Zinplava (bezlotoxumab) is not an antibacterial and is not indicated to actually treat the infection, but is a monoclonal antibody designed to neutralise C. difficile toxin B, which can damage the gut wall and cause inflammation, leading to diarrhoea.

It is the first and only EC licensed non-antibiotic option indicated to prevent recurrence of Clostridium difficile infection (CDI) in high-risk adults.

Around one-in-four patients experience a recurrence after the initial episode, and more than 40 percent of these have further recurrence, highlighting the need for new options able to break the infection cycle.

Pivotal Phase III clinical studies showed the rate of infection recurrence through week 12 to be significantly lower in patients given Zinplava (17.4 percent and 15.7 percent) or Zinplava and actoxumab (15.9 percent and 14.9 percent) than those taking a placebo (27.6 percent) and (25.7 percent), respectively.

“Notably, bezlotoxumab reduces the risk of the recurrence of CDI for at least 3 months, compared with standard of care antibiotic therapy. This is welcome addition to our limited options to reduce the considerable morbidity and mortality associated with CDI,” commented Mark Wilcox, Professor of Medical Microbiology at the University of Leeds.

“Antimicrobial resistance is a key national issue and we hope with bezlotoxumab to not only help achieve a reduction in the number of recurrent episodes of CDI but also a reduction in the amount of antibiotic prescriptions that would otherwise be needed to treat these recurrent episodes,” added Dr Mike England, MSD’s Interim Medical Director.

Zinplava is administered as a single, one-off, one-hour intravenous infusion alongside standard-of-care antibiotic therapy for the treatment of CDI.

 

Crestovo Doses Recurrent C. diff. Infection Patients In PRISM 3 – A Phase 2 Clinical Trial Testing CP-101 Microbiota

Crestovo doses recurrent Clostridium difficile infection (C. difficile) patients in PRISM 3, a phase 2 clinical trial testing CP101 (Microbiota).

The company is developing a Full-Spectrum Microbiota that harnesses the human gut microbiome. CP101, a first-in-class, lead microbiome therapy, is an encapsulated, single dose, orally-administered medicine that contains the full complement of functional microorganisms that may help restore the dysbiotic microbiota to a normal, functioning gut microbial community.

As Published in MD Mag :  http://www.mdmag.com/medical-news/phase-2-clinical-trial-tests-cp101-in-subjects-with-recurrent-c-diff

“CP101 has the potential to be the first therapy seeking FDA-approval utilizing the human gut microbiome,” Joseph Lobacki, chief operating officer, interim chief executive officer, Crestovo, said.

PRISM 3 is a multicenter, randomized, placebo-controlled trial evaluating the efficacy and safety of Microbiota in approximately 240 patients with recurrent C. difficile at clinical sites throughout the US.

Primary outcomes include a proportion of patients with no recurrence of symptomatic, laboratory confirmed C. difficile infection through 8 weeks, following administration of Microbiota, compared to the placebo, as well as a proportion of participants with adverse effects assessed by CTCAE v4.0 through 8 weeks mapped to system organ class.

Secondary outcome measures include a proportion of subjects sustaining clinical cure by a C. difficile subtype; through week 8, time to first recurrent C. difficile during the study at week 8 and 24; and a proportion of patients with no recurrence of symptomatic, laboratory confirmed infection at week 24.

Study arms include high dose full spectrum Microbiota, low dose full spectrum Microbiota and a placebo.

Inclusion criteria includes the ability to provide written informed consent, men or women 18–85 years age, a current diagnosis of a recurrence of non-severe, non-complicated C. difficile, and a clinical response to a standard course of oral vancomycin therapy to treat the current episode of recurrent C. difficile.

Top-line data from PRISM 3 is expected to release in December 2018.

Rebiotix Reports Topline Results From a Controlled Open-label Phase 2 Trial of RBX2660 (PUNCH™ Open Label) For the Prevention of Recurrent Clostridium difficile (C. diff.) Infection (rCDI)

In The News

April 2017

 

 

Rebiotix Inc., a clinical-stage microbiome company focused on harnessing the power of the human microbiome to treat challenging diseases, today announced topline results from a controlled open-label Phase 2 trial of RBX2660 (PUNCH™ Open Label) for the prevention of recurrent Clostridium difficile (C. diff.) infection.

Data indicated that RBX2660 was well-tolerated and achieved the primary efficacy endpoint of preventing C. diff. recurrence; patients treated with RBX2660 exhibited a treatment success rate of 78.8% compared with a historical control of 51.8% (p<0.0001). RBX2660 is a broad-spectrum microbiota suspension that is designed to rehabilitate the human microbiome by delivering live microbes into a patient’s intestinal tract to treat disease.

Lee Jones, president and CEO of Rebiotix, stated, “The 78.8% treatment success achieved in this open label Phase 2 trial demonstrates the potential of RBX2660, a broad spectrum microbiota drug product, to rehabilitate the gut microbiome and break the cycle of C. diff. recurrence. These results, coupled with the safety and efficacy data observed in our prior Phase 2b and Phase 2 clinical trials, position Rebiotix to advance RBX2660 into Phase 3 clinical development, solidifying our standing as the most clinically advanced microbiome company in the industry.”

PUNCH™ Open Label was designed as a prospective, multicenter, open-label, controlled Phase 2 study to assess the efficacy and safety of RBX2660 for the prevention of recurrent C. diff.

The primary efficacy endpoint involved a comparison of patients treated with RBX2660 to a closely matched set of antibiotic only treated historical controls through 56 days. There were 31 active treatment sites and four control sites in the US and Canada. 132 RBX2660 and 110 historical control subjects were included in this topline analysis.

Actively treated patients, after determining eligibility, were administered two doses of RBX2660; the first at day one and the second at day seven. Patients were then monitored for eight weeks to determine whether there was a recurrence of C. diff.

Top line results from the trial, which examined responses from 132 patients versus a historical control of 110 patients, indicated a treatment success rate of 78.8% as compared to a historical control of 51.8% (p<0.0001). Overall, RBX2660 was generally well-tolerated with the most commonly reported adverse events being gastrointestinal, including diarrhea, abdominal pain, flatulence, constipation and distension.


About Rebiotix Inc.

Rebiotix Inc. is a clinical-stage microbiome company focused on harnessing the power of the human microbiome to revolutionize the treatment of challenging diseases. Rebiotix is the most clinically advanced microbiome company in the industry, with its lead drug candidate, RBX2660, expected to enter Phase 3 clinical development for the prevention of recurrent Clostridium difficile (C. diff.) infection. Previously, RBX2660 was the subject of three Phase 2 trials in recurrent C. diff, including a Phase 2b randomized, double-blind, placebo-controlled trial (PUNCH™ CD2), with data indicating the drug was well-tolerated and demonstrated statistically significant treatment efficacy. RBX2660 has been granted Orphan Drug status, Fast Track status and Breakthrough Therapy Designation from the FDA for its potential to prevent recurrent C. diff. infection.

Rebiotix’s development pipeline includes multiple formulations targeting several disease indications and is built around its pioneering Microbiota Restoration Therapy (MRT) platform. MRT is a standardized, stabilized drug technology that is designed to rehabilitate the human microbiome by delivering a broad spectrum of live microbes into a patient’s intestinal tract via a ready-to-use and easy-to-administer format.

For More Information About C. difficile Clinical Trials In Progress : 

https://cdifffoundation.org/clinical-trials-2/

 

For more information on Rebiotix and its pipeline of human microbiome-directed therapies, visit www.rebiotix.com

 

Source:  Rebiotix 4/17