Tag Archives: Cdiff Clinical Studies

Seres Therapeutics Announced on March 30th, 2020, That the Company Has Completed Enrollment of its SER-109 Phase 3 Clinical Study, ECOSPOR III

On March 30th, 2020

Seres Therapeutics, Inc., announced that the Company has completed enrollment of its SER-109 Phase 3 clinical study, ECOSPOR III.

www.serestherapeutics.com

 

SER-109 is an oral, first-in-field microbiome therapeutic candidate that has been granted Orphan Drug and Breakthrough Therapy designations by the U.S. Food and Drug Administration (FDA), and is being investigated for use in preventing recurrent Clostridium difficile infection (CDI).

“We are pleased to have achieved this critically important corporate milestone. SER-109 has the potential to be the first FDA-approved therapy for C. difficile infection to treat the underlying cause of this disease, and the first approved microbiome drug for any human condition. We believe SER-109 could fundamentally transform the treatment of patients with recurrent C. difficile infection, a life-altering infectious disease, and we eagerly look forward to topline clinical results in the middle of this year. With compelling Phase 3 ECOSPOR III clinical data, we plan to engage in discussions with the FDA regarding a filing for product approval,” said Eric Shaff, President and Chief Executive Officer of Seres. “We are also working to advance our other promising clinical development candidates in light of the COVID-19 pandemic. This remains an evolving situation and we are carefully reviewing our development plans to determine how to rapidly advance our pipeline toward high-quality data readouts.”

SER-109 Study Updates

The SER-109 Phase 3 ECOSPOR III study (ClinicalTrials.gov identifier: NCT03183128) is a multicenter, randomized, placebo-controlled study which has enrolled 181 patients with multiply recurrent CDI to date. ECOSPOR III had been designed to enroll 188 patients. The Company has decided to halt enrollment as a result of the COVID-19 pandemic. Seres believes that ECOSPOR III remains well-powered to evaluate the efficacy of SER-109. The ECOSPOR III study’s primary endpoint is the reduction of CDI recurrence at up to eight weeks following SER-109 administration, and the Company expects to report study results in mid-2020 as had been planned.

Seres is grateful to the patients, principal investigators and clinical research teams who participated in ECOSPOR III, many of whom are now involved in the fight against COVID-19.

The SER-109 Phase 3 ECOSPOR III study includes use of an objective Clostridium difficile cytotoxin assay to ensure that all patients entering the study have active CDI, as well as to confirm CDI recurrences during the study (i.e., the ECOSPOR III primary endpoint).

Seres plans to initiate a SER-109 Expanded Access Program at selected clinical sites participating in the ongoing Phase 3 ECOSPOR III study, and the Company may also initiate the program at additional clinical sites for eligible patients to have access to SER-109.

Prior completed clinical studies have demonstrated SER-109 bacterial engraftment into the gastrointestinal microbiome, and that engraftment is associated with reduced recurrence of CDI. In all prior clinical studies, SER-109 was associated with a favorable safety profile.

The FDA has issued several safety alerts related to Fecal Microbiota Transplantation (FMT) and the risk of pathogen transmission including warnings related to Multi-Drug Resistant Organisms and SARS-CoV-2, the virus linked to COVID-19 (June 12, 2019Alert; March 12, 2020Alert; and March 23, 2020Alert). Unapproved FMT is widely used under an FDA Enforcement Discretion policy for the treatment of recurrent CDI that is not responsive to standard therapies.

In contrast to FMT, SER-109 is comprised of a highly purified consortia of spore-based commensal bacteria and is manufactured under Good Manufacturing Practices (GMP) conditions using stringent standards to ensure product quality and consistency. Seres utilizes a unique manufacturing process which has been demonstrated to inactivate numerous potential pathogens, including species of non-spore bacteria, such as Escherichia coli, and viruses. The Company’s manufacturing process inactivates many emerging potential pathogens where diagnostic assays may not yet be available, such as SARS-CoV-2. Seres has issued a position statement highlighting the criticality of including pathogen inactivation processes in the manufacture of microbiome therapeutics. Recent discussions with the FDA have indicated agency support regarding the fundamental differentiation between FMT and Seres’ product candidates.

COVID-19 Impact and Other Clinical Program Updates

Seres continues to monitor the impact of the COVID-19 pandemic on Company operations and ongoing clinical development activity, including the SER-287 Phase 2b study in ulcerative colitis, the SER-401 Phase 1b study in metastatic melanoma, and SER-301, a rationally designed, fermented development candidate for ulcerative colitis. Mitigation activities to minimize COVID-19-related operation disruptions are ongoing; however, given the severity and evolving nature of the situation, the timing of SER-287 Phase 2b and SER-401 Phase 1b clinical readouts is uncertain. Seres does not anticipate disruptions to the availability of its drug product candidates for ongoing studies.

The SER-287 Phase 2b study is currently approximately 60% enrolled based on the 201-patient target study size. SER-287 development activity has been adversely impacted by multiple clinical sites halting non-essential procedures, including endoscopies, which may make it difficult to achieve the original enrollment target in H2 2020 as planned. Seres is evaluating enrollment mitigation strategies and possible trial design modifications with the goal of obtaining a high-quality, clinically meaningful dataset within a timeframe consistent with Seres’ prior guidance for its cash runway extending into the second quarter of 2021. Furthermore, the Company is encouraged by the FDA’s indications of flexibility in light of the COVID-19 pandemic, and plans to engage the FDA in discussions regarding any potential trial modifications.

Seres continues to execute on activities to advance SER-301 clinical development and the planned initiation of patient dosing in Australia and New Zealand later this year.

 

SOURCE:  http://ir.serestherapeutics.com/news-releases/news-release-details/seres-therapeutics-announces-completion-enrollment-ser-109-phase

Seres Therapeutics SER-109, Investigational Microbiome Drug to Reduce rCDI, What Was Learned From a Phase 2 Clinical Trial

Abstract

Background

Recurrent C. difficile infection (rCDI) is associated with loss of microbial diversity and microbe-derived secondary bile acids, which inhibit C. difficile germination and growth. SER-109, an investigational microbiome drug of donor-derived, purified spores, reduced recurrence in a dose-ranging, open-label Phase (Ph)1 study in subjects with multiply rCDI.

To read publication in its entirety please click on the following link to be redirected. Thank you.

https://academic.oup.com/cid/advance-article/doi/10.1093/cid/ciaa387/5817059?rss=1

Methods

In a Ph2 double-blind trial, subjects with clinical resolution on standard-of-care antibiotics were stratified by age (< or ≥65 years) and randomized 2:1 to single-dose SER-109 or placebo. Subjects were diagnosed at study entry by PCR or toxin testing. Safety, C. difficile-positive diarrhea through week 8, SER-109 engraftment and bile acid changes were assessed.

Results

89 subjects were enrolled; 67% were female; 80.9% diagnosed by PCR. rCDI rates were lower in the SER-109 arm than placebo (44.1% versus 53.3%, respectively) but did not meet statistical significance. In a pre-planned analysis, rates were reduced among subjects ≥65 years (45.2% versus 80%, respectively; RR:1.77, 95% CI:1.11-2.81) while the <65 group showed no benefit. Early engraftment of SER-109 was associated with non-recurrence (p <0.05) and increased secondary bile acid concentrations (p<0.0001). Whole metagenomic sequencing from this study and our prior Ph1 study revealed previously unappreciated dose-dependent engraftment kinetics and confirmed an association between early engraftment and nonrecurrence. Engraftment kinetics suggest that Ph2 dosing was suboptimal. Adverse events were generally mild-to-moderate in severity.

Conclusions

Early SER-109 engraftment was associated with reduced CDI recurrence and favorable safety was observed. A higher dose of SER-109 and requirements for toxin testing were implemented in the current Ph3 trial.

Synthetic Biologics SYN-004 (ribaxamase) Achieves Primary Endpoint in Phase 2b Trial for C. difficile Infection

SyntheticBiologics2016LOGO

Synthetic Biologics’ SYN-004 (ribaxamase) Achieves Primary Endpoint
in Phase 2b Trial for C. difficile Infection (CDI)

 

Synthetic Biologics, Inc. a late-stage clinical company developing therapeutics
that preserve the microbiome to protect and restore the health of patients, today
announced positive topline data from its Phase 2b clinical trial for SYN-004 (ribaxamase),
the Company’s first-in-class oral enzyme designed to protect the gut microbiome
from disruption caused by certain intravenous (IV) beta-lactam antibiotics.

The study, a randomized, double-blind, placebo controlled trial of 412 patients, met its primary endpoint of significantly reducing C. difficile Infection (CDI). Preliminary analysis of the data indicated seven confirmed cases of CDI in the placebo group compared to two cases in the ribaxamase treatment group. Patients receiving ribaxamase achieved a 71.4% relative risk reduction (p-value=0.045) in CDI rates compared to patients receiving placebo. Adverse events reported during this trial were comparable between treatment and placebo arms.

Synthetic Biologics is also in the process of analyzing data from several exploratory endpoints that were designed to evaluate ribaxamase’s ability to protect the gut microbiome from colonization by opportunistic bacteria such as C. difficile and other antibiotic-resistant pathogens. Preliminary analysis of the data demonstrated a significant reduction in new colonization by vancomycin-resistant enterococci (VRE) for patients receiving ribaxamase compared to placebo (p-value=0.0002). With agreement from the FDA, the study included a secondary endpoint to assess ribaxamase’s capacity to decrease the incidence of antibiotic-associated diarrhea from all causes. Preliminary analysis of the data suggested a trend towards such a reduction (p-value=0.13), which was due, for the most part, to the reduction of CDI.

These data are consistent with ribaxamase’s mechanism of action designed to protect and preserve the natural balance of the gut microbiome from the unintended effects of IV antibiotic use. The Company expects to share additional results from these exploratory endpoints as they become available later this year, including results focused on ribaxamase’s ability to prevent the emergence of antimicrobial resistance in the gut microbiome.

“These trial results provide a compelling demonstration of the potential of ribaxamase to help address the serious health impacts associated with CDI and infections from other opportunistic bacteria resulting from dysbiosis of the gut microbiome,” said Joseph Sliman, MD, SVP, Clinical and Regulatory Affairs. “More than 453,0001 patients are diagnosed with CDI annually in the U.S., resulting in approximately 29,0001 deaths as well as significant and sometimes prolonged illness. Ribaxamase has the potential to shorten hospital stays, diminish morbidity and mortality and reduce the emergence of antibiotic-resistant organisms in the gut microbiome by protecting patients from primary C. difficile infection resulting from IV antibiotic use.”

In addition to causing significant suffering and mortality, CDI adds an estimated economic burden of nearly $1.5 billion1 to the healthcare system each year, which could potentially be reduced with an effective therapeutic.

“The reduction in the relative risk of CDI represents a significant milestone in the clinical development of ribaxamase and we believe provides further validation for our approach to advancing cutting edge microbiome science,” said Jeffrey Riley, President and Chief Executive Officer. “These findings also help further our goals to bring the first ever microbiome-focused therapeutic to patients and to help illuminate the potential of this drug class to address serious diseases and public health concerns. We expect to share additional data from exploratory endpoints in the coming months and look forward to continuing ongoing and productive discussions with both the FDA and CDC on the protocol for Phase 3 pivotal trials for ribaxamase.”

Synthetic Biologics is also continuing to prepare for the initiation of pivotal Phase 2b/3 clinical trials for SYN-010, the Company’s proprietary, modified-release formulation of lovastatin lactone designed to treat the underlying cause of irritable bowel syndrome with constipation (IBS-C).

Presentation Planned for Biotech Showcase 2017 Conference

Date: Monday, January 9, 2017
Time: 9:30 a.m. (PT) / 12:30 p.m. (ET)
Location: Hilton San Francisco Union Square, San Francisco, CA

A live webcast of Synthetic Biologics’ presentation may be accessed by logging onto the internet at https://event.webcasts.com/viewer/event.jsp?ei=1130367. After the presentation, a replay will be archived and accessible for 90 days at the same website.

About SYN-004 (ribaxamase) and the Phase 2b Study

SYN-004 (ribaxamase) is a first-in-class oral enzyme designed to degrade certain IV beta-lactam antibiotics within the GI tract and maintain the natural balance of the gut microbiome for the prevention of CDI, AAD and the emergence of antibiotic-resistant organisms. The Phase 2b proof-of-concept clinical trial is intended to evaluate the effectiveness of ribaxamase to prevent the onset of primary C. difficile infection (CDI), antibiotic-associated diarrhea (AAD) and the emergence of antibiotic-resistant organisms in patients hospitalized with a lower respiratory infection and receiving IV ceftriaxone. A total of 412 subjects were randomized in a 1:1 ratio receiving either 150 mg dose strength of SYN-004 (ribaxamase) or placebo orally QID from Day 1 and until 72 hours following their last treatment of IV ceftriaxone. The sample size was determined to provide 80% power to detect the treatment effect with a one-sided alpha of 0.05. P-values were determined based on a 1-sided z-test for the comparison of the treatment difference as pre-specified in the statistical analysis plan. To access the ribaxamase mechanism of action video on Synthetic Biologics’ website, please click here.

About Synthetic Biologics, Inc.

Synthetic Biologics, Inc. (NYSE MKT: SYN) is a late-stage clinical company developing therapeutics that preserve the microbiome to protect and restore the health of patients. The Company’s lead candidates poised for Phase 3 development are: (1) SYN-010 which is intended to reduce the impact of methane producing organisms in the gut microbiome to treat an underlying cause of irritable bowel syndrome with constipation (IBS-C), and (2) SYN-004 (ribaxamase) which is designed to protect the gut microbiome from the effects of certain commonly used intravenous (IV) beta-lactam antibiotics for the prevention of C. difficile infection, antibiotic-associated diarrhea (AAD) and the emergence of antibiotic-resistant organisms. The Company is also developing preclinical stage monoclonal antibody therapies for the prevention and treatment of pertussis and novel discovery stage biotherapeutics for the treatment of phenylketonuria (PKU). For more information, please visit Synthetic Biologics’ website at www.syntheticbiologics.com.

This release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, forward-looking statements can be identified by terminology such as “may,” “should,” “potential,” “continue,” “expects,” “anticipates,” “intends,” “plans,” “believes,” “estimates” and similar expressions and include statements regarding the potential of ribaxamase to help address the serious health impacts associated with CDI and infections from other opportunistic bacteria resulting from dysbiosis of the gut microbiome, the industry data regarding the expected incidence and economic burden of CDI, the potential of ribaxamase to shorten hospital stays, diminish morbidity and mortality and reduce the emergence of antibiotic resistant organisms in the gut microbiome by protecting patients from primary C. difficile infection resulting from IV antibiotic use, the potential to reduce the economic burden to the healthcare system from an effective therapeutic, the suggested trend toward a reduction of incidence of antibiotic-associated diarrhea from all causes, the expected timing of data release of exploratory endpoints of the trial focused on the ability of ribaxamase to prevent the emergence of antibiotic-resistant organisms in the gut microbiome, the continued ongoing discussions with the FDA and CDC, validation for our approach to advancing cutting edge microbiome science, the continued preparation  for the initiation of pivotal Phase 2b/3 clinical trials for SYN-010, the potential of the drug class to address serious diseases and public health concerns, the ability of SYN-004 to protect the gut microbiome from the effects of certain commonly used IV beta-lactam antibiotics for the prevention of  C. difficile infection, antibiotic-associated diarrhea (AAD) and the emergence of antibiotic-resistant organisms. These forward-looking statements are based on management’s expectations and assumptions as of the date of this press release and are subject to a number of risks and uncertainties that could cause actual results to differ materially from those set forth or implied by any forward-looking statements. Important factors that could cause actual results to differ materially from current expectations include, among others, Synthetic Biologics’ product candidates demonstrating safety and effectiveness, as well as results that are consistent with prior results, Synthetic Biologics’ ability to initiate clinical trials and if initiated, to complete them on time and achieve desired results and benefits, Synthetic Biologics’ clinical trials continuing enrollment as expected, Synthetic Biologics’ ability to obtain regulatory approvals for commercialization of product candidates or to comply with ongoing regulatory requirements, regulatory limitations relating to Synthetic Biologics’ ability to promote or commercialize its product candidates for specific indications, acceptance of its product candidates in the marketplace and the successful development, marketing or sale of Synthetic Biologics’ products by competitors that render Synthetic Biologics’ products obsolete or non-competitive, Synthetic Biologics’ ability to maintain its license agreements, the continued maintenance and growth of Synthetic Biologics’ patent estate, Synthetic Biologics becoming and remaining profitable, Synthetic Biologics’ ability to establish and maintain collaborations, Synthetic Biologics’ ability to obtain or maintain the capital or grants necessary to fund its research and development activities, a loss of any of Synthetic Biologics’ key scientists or management personnel, and other factors described in Synthetic Biologics’ Annual Report on Form 10-K for the year ended December 31, 2015 and its other filings with the SEC, including subsequent periodic reports on Forms 10-Q and 8-K.The information in this release is provided only as of the date of this release, and Synthetic Biologics undertakes no obligation to update any forward-looking statements contained in this release on account of new information, future events, or otherwise, except as required by law.

1: Leffler DA et al. N Engl J Med 2015; 372: 1539-1548

To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/synthetic-biologics-syn-004-ribaxamase-achieves-primary-endpoint-in-phase-2b-trial-for-c-difficile-infection-cdi-300386140.html

SOURCE Synthetic Biologics, Inc.

C. difficile Infection (CDI) Prevention, Treatment, Environmental Safety, Research, Clinical Trials Being Discussed with World Topic Experts On September 20th In Atlanta, Georgia USA

Cdiff2015BallroomPic

September 20th

It is with great pride and certainty in the power of the healthcare community to present the 4th Annual International Raising. C. diff. Awareness Conference and Health Expo

being hosted at the

DoubleTree by Hilton — Atlanta Airport 
3400 Norman Berry Drive
Atlanta,Georgia 30344 USA  (Hotel Phone: 1-404-763-1600)

Doors open at 7:15 a.m — Sign In and Continental Breakfast

Conference begins at: 7:30 a.m. – 5:00 p.m.

TAtlantaPic

Raising C. difficile awareness is essential to build upon and advance existing knowledge and necessary for overcoming the challenges our healthcare communities are faced with today.

“None of us can do this alone — All of us can do this together”

Nearly half a million Americans suffered from Clostridium difficile (C. diff.) infections in a single year according to a study released February 25, 2015 by the Centers for Disease Control and Prevention (CDC).   C. diff. is a leading cause of infectious disease death worldwide; 29,000 died within 30 days of the initial diagnosis in the USA.   Previous studies indicate that C. diff. has become the most common microbial cause of healthcare-associated infections found in U.S. hospitals driving up costs to $4.8 billion each year in excess health care costs in acute care facilities alone.

###

Cdiff2015-1Clinical professionals gather for one day to present up-to-date data to expand on the existing knowledge and raise awareness of the urgency focused on a Clostridium difficile infection (CDI) —

    • Prevention
    • Treatments
    • Research
    • Environmental Safety
    • Clinical trials and studies

WITH

  • Microbiome research, studies
  • Infection Prevention
  • Fecal Microbiota Restoration and Transplants for Adults & Pediatrics
  • A Panel Of C. diff. Infection Survivors
  • Antibiotic Stewardship
  • Healthcare EXPO
    ……………………and much more.

You won’t want to miss out on this opportunity to learn from
International topic experts delivering data directed at evidence-based
prevention, treatments, and environmental safety in the C. diff.
and healthcare community.

Gain insights on September 20th that will not be available anywhere else with an opportunity to receive up-to-date data on major topics in this program being presented in one day.

5 Leading reasons to attend this dynamic conference:

  • Learn from leading healthcare professionals, clinicians, researchers, and industry.
  • Networking opportunities with new and reconnect with those in the healthcare community with similar interests.
  • Gain breakthrough results through research in progress and gaining positive results. Programs focused on Antibiotic-resistance such as the  Antibiotic Stewardship making a difference. Front line developments in progress focused on C. diff. infection prevention, treatments, environmental safety.
  • Implement and share the knowledge well after the conference ends.  Every attendee receives a booklet with guest speakers information, media to review audio programs, and Health Expo Sponsor information focused on the important agenda topics.
  • Embrace the opportunity, with all of the topic experts presenting, and hold the conference in the highest priority from the participation in this conference to an audience of medical students, and fellow healthcare professionals, who will benefit the most from the data and gain tools to overcome the barriers facing healthcare each day.

“The information and up-to-date studies shared at the 2015 conference added to an existing knowledge base that helps us to continue delivering quality care in the medical community.”   Linda Davis, RN,BSN

 ……………………………………………………………………………………………………………..

REGISTRATION FEES:

$75.00  —  Conference Registration

$30.00  —  Student Conference Registration (Student ID To Be Presented At the Door)

TO REGISTER Click on the “Raising C. diff. Awareness” Ribbon below

CDiffAwarenessRibbon2015

Room accommodations are available —  Complete and Confirm 

by August 19th to reserve your hotel reservations.   

To create a reservation please click on the DoubleTree By Hilton Logo below – – – – – –

DoubleTreeLogo

……………………………………………………………………………………………………………………….

 A suggested travel coordinator, for your convenience

LibertyTraveldownloadMichael Beckman — Team Leader,  Liberty Travel, 467 Washington Street, Boston, MA  02111
617-936-2435
Michael.Beckman@flightcenter.com

 For Additional Information visit the C Diff Foundation Website:

https://cdifffoundation.org/

https://cdifffoundation.org/

And Click on the 2016 September Conference Tab

 

Follow us on Twitter
@cdiffFoundation
#Cdiff2016

European Patent Office Has Granted European Patent Which Provides Composition Of Matter Coverage For Synthetic Biologics’ ribaxamase

SyntheticBiologics2016LOGO

Synthetic Biologics; a clinical stage company focused on developing therapeutics to protect the gut microbiome announced on July 12, 2016  that the European Patent Office has granted European Patent No. 2576776 which provides composition of matter coverage for ribaxamase, the Company’s Phase 2 drug candidate designed to degrade certain IV beta-lactam antibiotics within the GI tract and maintain the natural balance of the gut microbiome for the prevention of Clostridium difficile infection (CDI), antibiotic-associated diarrhea (AAD) and the emergence of antibiotic-resistant organisms.

This is Synthetic Biologics’ first patent directly pertaining to ribaxamase in Europe and adds to the Company’s established and extensive patent estate.

In addition, the U.S. Patent and Trademark Office (USPTO) has granted
US Patent No. 9,376,673, and issued a Notice of Allowance for another application (US 15/160,669), with composition of matter claims for various beta-lactamase candidates related to ribaxamase. These new patent assets further strengthen the Company’s coverage of its novel proprietary candidate, ribaxamase, which is also covered by a previously granted composition of matter patent in the U.S.

“The successful granting of this composition of matter patent in Europe, alongside our continued patent successes in the U.S., further strengthens Synthetic Biologics’ role as a leader in the development of microbiome-focused programs intended to address largely unmet medical needs,” said Jeffrey Riley, President and Chief Executive Officer. “As we continue to enjoy momentum in the clinic, our progress is further complimented by our well established and reinforced patent estate for ribaxamase.”

Ribaxamase is designed to degrade certain intravenous (IV) beta-lactam antibiotics excreted into the gastrointestinal (GI) tract to maintain the natural balance of the
gut microbiome.

C. difficile is associated with approximately 453,000 CDIs and > 29,000 C. difficile-related deaths in the United States each year[i].

Upon issuance, these newly allowed applications reinforce Synthetic Biologics’ extensive C. difficile-related patent estate, which includes approximately 40 U.S. and foreign patents and approximately 30 U.S. and foreign patent pending applications, and patents and patent applications with terms that extend from at least 2031 to 2036.

 

To read this article in its entirety click on the link below:

http://ir.syntheticbiologics.com/press-releases/detail/216