Navigation Links
REGiMMUNE presents enhanced efficacy data in preclinical transplantation models
Date:6/1/2009

Boston, MA June 1, 2009 REGiMMUNE Corporation today announced that its lead product candidate RGI-2001, in combination with a low-dose of Sirolimus, demonstrated enhanced efficacy in transplantation tolerance induction in models of skin transplantation and acute Graft-versus-Host disease (GvHD). This data is being presented today in a poster titled "Donor-Specific Tolerance Induction by a Liposomal Formulation of KRN7000 (RGI-2001) Alone and in Combination with Low-Dose Sirolimus" at the 2009 American Transplant Congress being held in Boston.

"We are extremely pleased to present this data," stated Haru Morita, President and Chief Executive Officer of REGiMMUNE. "The study not only demonstrated the efficacy of RGI-2001 in solid organ transplants; it showed the potential of RGI-2001 to induce antigen-specific transplantation tolerance, which is considered a holy grail in transplantation."

KRN7000, a synthetic derivative of alpha-galactosylceramide, is a small molecule that potently activates natural killer T (NKT) cells. RGI-2001 is a proprietary liposomal formulation of KRN7000. RGI-2001 monotherapy has shown to induce antigen-specific immune suppression by inducing regulatory T cells (Tregs). Tregs are believed to play a central role in inducing and maintaining immune tolerance. The study was designed to evaluate the efficacy of RGI-2001 in combination with Sirolimus in transplantation tolerance induction in mouse models.

Study Results

Pharmacological induction of alloantigen-specific tolerance is expected to provide significant clinical benefits in organ transplantation and bone marrow transplantation. The REGiMMUNE study concluded that the addition of a subtherapeutic dose of Sirolimus enhanced the efficacy of RGI-2001 in both models. The combination treatment significantly prolonged the survival of grafts in the skin transplant model over Sirolimus single treatment. Likewise, GvHD mortality was reduced by the combination treatment. In addition, the combination of RGI-2001 with low-dose Sirolimus significantly enhanced Treg induction.

The results indicate the potential of RGI-2001 to be a key component of a novel tolerance induction regimen, avoiding the use of calcineurin inhibitors that are not only associated with high toxicity but suppress Treg activity. The finding suggests the possibility to develop a pharmacological approach to induce long-term transplant tolerance by promoting the body's intrinsic tolerogenic pathways using RGI-2001.

RGI-2001 is in late preclinical development and REGiMMUNE plans to file an Investigational New Drug (IND) for the prevention of acute GvHD associated with bone marrow transplantation later this year.

The poster presentation is scheduled during the session "Tolerance I: Regulatory Cells" today in Exhibit Hall C, Hynes Convention Center. It is available for viewing from 8:00 am to 6:30 pm; and the authors, Drs. Omar Duramad and Reiko Namikawa, will be present from 5:30 pm to 6:30 pm for discussion and questions.


'/>"/>

Contact: Debra Bannister
530-676-8001
REGiMMUNE
Source:Eurekalert

Related biology news :

1. REGiMMUNE receives $12 million in grants to develop transplant and allergy drugs
2. Biolex presents Locteron US Phase 2a hepatitis C data at EASL
3. GSA special paper presents new studies of Western US earth motion
4. AIUM Presents 2009 Joseph H. Holmes Pioneer Awards
5. AIUM presents 2009 Memorial Hall of Fame awards
6. AIUM presents 2009 Distinguished Sonographer award
7. AIUM presents 2009 William J. Fry Memorial Lecture award
8. Stevens Center for Science Writings presents: Ravens at the Feast, with Bernd Heinrich, April 1
9. Understanding soil carbon sequestration: New book presents key concepts
10. World Congress on Osteoporosis 2010 presents outstanding scientific program
11. New manual presents robust, state-of-the-art proteomics methods for teaching and research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/9/2016)... March 9, 2016  Crossmatch ® , a ... solutions, today announced the addition of smart features ... multi-factor authentication platform. New contextual and application-specific ... step-up security where it,s needed most — while ... DC . --> Washington, ...
(Date:3/3/2016)... NOTTINGHAM, England and DE SOTO, ... , U.S.-based Stroke Detection Plus® to offer Oncimmune,s ... the risk assessment and early detection of lung cancer ... include large employers, unions and individuals. --> ... employers, unions and individuals. --> Oncimmune, a ...
(Date:3/1/2016)... FRANCISCO , March 1, 2016  (RSAC Booth ... year, but a whopping $118 billion is lost to ... to overzealous and inaccurate fraud detection. At the RSA ... in the way companies handle authentication by devaluing the ... and behavioral analytics. --> ...
Breaking Biology News(10 mins):
(Date:4/29/2016)... CA (PRWEB) , ... April 29, 2016 , ... Summit ... (NSCF) to support the development of a patient-specific stem cell therapy for the treatment ... the lab of Dr. Jeanne Loring at The Scripps Research Institute in San Diego, ...
(Date:4/28/2016)... ... April 28, 2016 , ... Connecticut Innovations (CI), ... today announced the launch of VentureClash , a $5 million global investment ... “VentureClash looks to attract the best early-stage companies here in Connecticut, around the ...
(Date:4/27/2016)... (PRWEB) , ... April 27, 2016 , ... ... of cannabis testing technology at the Spring 2016 Marijuana Business Conference and Expo. ... pesticides, residual solvents, heavy metals, and more. Expo attendees can stop by booth ...
(Date:4/27/2016)... ... April 27, 2016 , ... ... pleased to announce the appointment of John Tilton as Chief Commercial Officer.  Mr. ... and one of the founding commercial leaders responsible for the commercialization of multiple ...
Breaking Biology Technology: