Rebiotix Treats First Patient In Phase 1 Study of RBX7455 Oral Capsule – A Formulation of Rebiotix’s Microbiota Restoration Therapy (MRT)

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Rebiotix Treats First Patient in Phase 1 Study of RBX7455, an Orally Delivered Broad-Spectrum Non-Frozen MicrobiotaROSEVILLE, Minn., Jan. 4, 2017

 

Rebiotix Inc., a clinical-stage biotechnology company focused on harnessing the power of the human microbiome to treat challenging diseases, announced today that the first patient has been treated in a Phase 1 study of RBX7455 for the prevention of recurrent Clostridium difficile (C. diff.) infection.

RBX7455 is a lyophilized non-frozen oral capsule formulation of Rebiotix’s Microbiota Restoration Therapy (MRT), 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.

RBX7455 lyophilized capsules remove the need for patients to keep the product frozen or refrigerated.

This prospective, single center, two-arm Phase 1 study is a proof of concept dosing study of RBX7455 for the prevention of recurrent C. diff. infection, an increasingly difficult-to-resolve intestinal infection that causes approximately 29,000 deaths in the U.S. each year.1 It is also the first clinical study of an oral microbiota therapy that allows the patient to take the medication at home.

  • RBX7455 requires no special handling or storage needs for patients. The study will enroll approximately 20 patients at a single U.S. site and is being conducted by the Mayo Clinic, a nonprofit worldwide leader in medical care, research and education.

“New therapies are urgently needed to prevent recurrent C. diff., a debilitating, costly and potentially life-threatening infection,” said Dr. Sahil Khanna, Assistant Professor of Medicine, Department of Gastroenterology and Hepatology, Mayo Clinic, who is leading the study. “RBX7455 not only provides standardized and stabilized human microbes orally, but may provide several advantages in terms of patient dosing and therapy accessibility since no freezing or refrigeration is needed when the patient takes the product home.”

The initiation of the Phase 1 study of RBX7455 enhances Rebiotix’s clinical pipeline of human microbiome-directed drug candidates. The Company’s lead drug candidate, RBX2660, recently completed a Phase 2b randomized, double-blind placebo-controlled trial examining the efficacy and safety of the microbiota restoration therapeutic as a prevention for recurrent C. diff. infection after a standard of care course of antibiotics (PUNCH™ CD2).

“Dosing the first patient in the Phase 1 study of RBX7455 is a significant milestone for Rebiotix as it solidifies our position as the most clinically advanced microbiome company in the industry, while showcasing the potential of our MRT platform to create new solutions for challenging diseases through standardized microbiota-based drug development,” stated Lee Jones, president and CEO of Rebiotix. ”

RBX7455 is a potentially ground-breaking product for Rebiotix and the entire microbiome industry in that the lyophilized oral capsules do not need to be kept frozen and thus can be stocked in a pharmacy with no special handling or storage needs. As such, RBX7455 offers the unique opportunity to introduce live microbial therapy as a potential treatment for numerous diseases where chronic or repeat dosing is required.”

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