Posts in Category: Immunobody

Scancell develops new vaccine for the treatment of lung cancer

Scancell Holdings Plc, (AIM: SCLP), the developer of therapeutic cancer vaccines, announces that a treatment utilising a DNA vaccine based on its ImmunoBody® technology, in combination with Homspera®, an adjuvant developed by ImmuneRegen BioSciences, Inc.® has produced encouraging anti-tumour results in animal models.

The vaccine, known as SCIB2, stimulates immune responses to the lung cancer antigen NY-ESO-1 and may also have potential utility in oesophageal, liver, gastric, prostate, ovarian and bladder cancers. Unlike classical adjuvants, Homspera® did not enhance the SCIB2 systemic immune response but did make it more effective at the tumour site. This could have profound implications for cancer vaccine therapy.

Scancell is currently conducting a Phase I clinical trial utilising its SCIB1 vaccine which is being developed for the treatment of melanoma. SCIB1 is a novel DNA vaccine which is also being developed using Scancell’s patented ImmunoBody® technology. ImmunoBody® vaccines generate the high-avidity T-cells that kill cancer cells.

ImmuneRegen’s Homspera® has previously been found to synergise with SCIB1 in an animal model. Additionally, previous studies have demonstrated efficacy of Homspera® in enhancing immune responses to infectious disease vaccines, such as influenza.

Professor Lindy Durrant, Chief Executive Officer of Scancell, commented:

“These are outstanding results for Scancell and a significant milestone for the Company. The successful application of Scancell’s ImmunoBody® technology, in conjunction with Homspera®, provides further evidence that our ImmunoBody® vaccine has the potentially groundbreaking ability to augment the immune responses necessary to destroy cancer. We are delighted to be combining our efforts with ImmuneRegen and look forward to progressing our work further at this pivotal moment for Scancell. Shareholders will be kept fully updated with this significant breakthrough. In addition to this highly positive news, we have a number of other promising vaccine candidates in development, which we hope will be the subject of further announcements in due course”.

Hal Siegel Ph.D., Chief Scientific Officer of ImmuneRegen, commented:

“We are very pleased with our ongoing collaboration with Scancell and the results of their studies with Homspera® in conjunction with their ImmunoBody® technology. This is further evidence of the immunostimulatory activity of our compound, and also demonstrates a broader anti-tumour effect than previously reported. Furthermore, these recent studies suggest a specificity regarding the dendritic cell activity of Homspera that is both intriguing and promising. We are anticipating additional studies at Scancell will provide further insights into the activity and value of Homspera as an ImmunoBody® vaccine adjuvant for a potentially broad spectrum of therapeutic cancer treatments.”

ImmuneRegen BioSciences, Inc.® is a wholly owned subsidiary of IR BioSciences Holdings, Inc. (OTC BB:IRBS.OB)

For further information contact:

Scancell Holdings Plc
Professor Lindy Durrant
+ 44 (0)207 245 1100

Hansard Communications
Adam Reynolds/Guy McDougall
+ 44 (0)207 245 1100

Zeus Capital - Nominated Adviser
Ross Andrews/Tom Rowley
+ 44 (0)161 831 1512

XCAP Securities Plc - Broker
John Belliss/Parimal Kumar
+44 (0)207 101 7070

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1, which entered clinical trials in 2010, is being developed for the treatment of melanoma.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.

Subdivision of share capital and Placing to raise £1.73 million

Scancell Holdings plc, (‘Scancell’ or the ‘Company’) the developer of therapeutic cancer vaccines, is pleased to announce the following:

  • The proposed subdivision of each Existing Ordinary Share of 1p into 10 new Ordinary Shares of 0.1p each (the “Subdivision”); and
  • A placing to raise £1.73 million, before costs, by means of the issue of 34,575,410 new Ordinary Shares at 5 pence per share (the “Placing”) to fund the working capital of the Company.

The Directors consider the Placing and Subdivision to be in the best interests of the Company and its Shareholders as a whole. Since the Placing and Subdivision are conditional on the Company obtaining Shareholders’ approval the Directors have therefore convened a General Meeting for 10.45 a.m. on 25 July 2011 in order to allow Shareholders to consider, and, if thought fit, approve the Resolutions.

Professor Lindy Durrant, commented:

“We believe that, following completion of the Placing, we will have sufficient funding to complete the Phase I trials of our melanoma treatment and to advance the development of our series of new ImmunoBody® cancer vaccines to the pre-clinical proof of principle stage. After the Phase I clinical trial has been completed, and if the data is positive, the Company will seek to generate revenues from a commercial deal on the ImmunoBody® technology and will continue with the Phase II clinical trial. A successful outcome should present Scancell as an excellent acquisition opportunity with an exit remaining firmly on the agenda following the completion of the Phase II trial, expected early 2013.”

Enquiries:
Scancell Holdings Plc
Professor Lindy Durrant/Dr Richard Goodfellow
+ 44 (0)207 245 1100

Hansard Communications
Adam Reynolds/Guy McDougall
+ 44 (0)207 245 1100

Zeus Capital - Nominated Adviser
Ross Andrews/Tom Rowley
+ 44 (0)161 831 1512

XCAP Securities Plc - Broker
John Belliss/Parimal Kumar
+44 (0) 207 101 7070

View the full report (PDF file opens in a new window)

Unaudited Interim Results for the six month period to 31st October 2010

Scancell Holdings plc, the developer of therapeutic cancer and infectious disease vaccines based on its patented Immunobody® platform, is pleased to announce the interim results for the six month period ended 31st October 2010.

Highlights:

  • Successful progression of SCIB1, Scancell's lead vaccine for melanoma, which entered clinical trials in June 2010
  • Raised £2.5 million in April 2010 with new and current shareholders
  • Moved from PLUS to AIM in July 2010
  • Secured licensing agreements with:
    • the National Institutes of Health (an agency of the United States Department of Health and Human Services); and
    • Cancer Research Technology Ltd (Cancer Research UK's commercialisation and development arm)
  • Entered strategic collaborations with:
    • ImmuneRegen BioSciences, Inc.®; and
    • immatics biotechnologies GmbH

Post-period Highlights:

  • Four patients recruited to date for the clinical trials
  • Approval obtained to open a fourth UK patient recruitment site and to expand the patient population in the Phase I part of the study, to include all patients with Stage III and Stage IV malignant melanoma
  • Escalation of the dose and recruitment of the next group of patients in SCIB1 trial approved by the Cohort Review Committee

For further information contact:

Scancell Holdings Plc
Professor Lindy Durrant
+ 44 (0)207 245 1100

Hansard Communications
Kirsty Corcoran/Adam Reynolds
+44 (0)207 245 1100

Zeus Capital - Nominated Adviser/Joint Broker
Ross Andrews/Tom Rowley
+ 44 (0)161 831 1512

Matrix Corporate Capital LLP - Joint Broker
Robert Naylor/Stephen Waterman

View the full results 

SCIB1: Safety Review and Dose Escalation

Scancell Holdings Plc, (AIM: SCLP), the developer of therapeutic cancer vaccines, is pleased to announce that the first group of patients receiving the lowest dose of SCIB1 (its DNA ImmunoBody® vaccine being developed for the treatment of melanoma) in the Phase I clinical trial has been evaluated by the Cohort Review Committee.

Following review of the safety data from the first three patients after three treatments, the Cohort Review Committee has approved escalation of the dose and recruitment of the next group of patients as planned.

The trial, which commenced in June 2010, is designed to evaluate the safety and tolerability of SCIB1 in patients with late stage melanoma and also to gather data on the effects of SCIB1 on tumour growth and cellular immune response.

Professor Lindy Durrant, CEO of Scancell Holdings and Professor of Cancer Immunotherapy at Nottingham University, commented: “We are pleased that the Cohort Review Committee has given us the go-ahead to escalate the dose of SCIB1. This initial data, combined with the recent recruitment of a fourth trial centre at Leeds and the approval by GTAC and MHRA for recruitment of earlier stage patients is a very encouraging development. There remains a pressing need for safe new treatments for this devastating disease and these developments have allowed us to make further progress towards this goal.”

For further information contact:

Scancell Holdings Plc
Professor Lindy Durrant
+ 44 (0)207 245 1100

Hansard Communications
Kirsty Corcoran/Adam Reynolds
+ 44 (0)207 245 1100

Zeus Capital - Nominated Adviser/Joint Broker
Ross Andrews/Tom Rowley
+ 44 (0)161 831 1512

Matrix Corporate Capital LLP - Joint Broker
Robert Naylor/Stephen Waterman
+44 (0)20 3206 7340

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1 is being developed for the treatment of melanoma and has recently entered clinical trials.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.

Re: SCIB1 Clinical Trial Patient Recruitment

Scancell Holdings Plc, (AIM: SCLP), the developer of therapeutic cancer vaccines, is pleased to provide shareholders with an update on patient recruitment for its Phase I clinical trial of SCIB1, its DNA ImmunoBody® vaccine being developed for the treatment of melanoma. The trial has to date been conducted in three UK centres with Stage IV or inoperable Stage III melanoma patients.

Scancell has now obtained approval from the Gene Therapy Advisory Committee (‘GTAC’) and the Medicines and Healthcare products Regulatory Agency (‘MHRA’) Medicines Division to open a fourth UK site in Leeds. In addition, approval has been granted by GTAC and the MHRA to expand the patient population in the Phase I part of the study to include all patients with Stage III and Stage IV malignant melanoma.

As noted in the AGM Statement on 14 December 2010, patient recruitment has been slightly slower than originally anticipated. The Company sought approval to open a fourth centre and to be able to treat earlier stage patients in order to increase the rate of patient recruitment. In addition, it is hoped that the earlier stage patients might show a better immune response to SCIB1.

Professor Lindy Durrant, CEO of Scancell Holdings and Professor of Cancer Immunotherapy at Nottingham University, commented: “The approval to open a fourth centre in Leeds and to start recruiting patients with earlier stage disease is excellent news for Scancell. The Board remains confident that the Phase I/II clinical trial is on track to be completed by the end of 2012.”

For further information contact:

Scancell Holdings Plc - Professor Lindy Durrant

  • + 44 (0)207 245 1100

Hansard Communications - Kirsty Corcoran/Adam Reynolds

  • + 44 (0)207 245 1100

Zeus Capital - Nominated Adviser/Joint Broker - Ross Andrews/Tom Rowley

  • + 44 (0)161 831 1512

Matrix Corporate Capital LLP - Joint Broker - Robert Naylor/Stephen Waterman

  • +44 (0)20 3206 7340

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1 is being developed for the treatment of melanoma and entered clinical trials in 2010.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.

AGM Statement

At the Annual General Meeting of Scancell Holdings Plc, (AIM: SCLP), to be held later today, David Evans, Chairman will give shareholders an update and review of the business. This will include the following statement:

This has been an exciting and busy year for Scancell in which the Company has successfully achieved all of its commercial and scientific aims in line with its strategy. Of particular note is the successful progression of Scancell’s first vaccine, SCIB1 for melanoma, which entered clinical trials in June 2010. The Company also successfully raised £2.5 million in April 2010 and moved from PLUS to AIM in July 2010.

SCIB1 Phase I Clinical Trial

Clearly, a move into clinical trials for SCIB1 represents an important milestone. This followed Clinical Trial Approval from the Gene Therapy Advisory Committee and by the Medicines and Healthcare Products Regulatory Agency Medicines Division. The approvals enabled Scancell to commence its Phase I clinical trial of SCIB1 in June 2010, to evaluate the safety and tolerability of SCIB1 in patients with late stage melanoma. To date, four patients have been enrolled on the trial which is currently taking place at three centres. Recruitment has been slower than anticipated due to the fact that a number of patients with advanced melanoma - the patients we require - are either being recruited into B-raf* studies or offered ipilimumab** on a compassionate use basis. By the time the patients have failed to respond to either (or both) of these treatments, they are often too ill to enter our study. Overall this has had an impact on the recruitment rates for the Phase I study, however the Company still expects to complete the clinical trial by the end of 2012.

To accelerate the advancement of the trial, two further centres will be opened, and Scancell has also filed protocol amendments to recruit patients with less severe disease. These earlier stage patients should make better immune responses which should ultimately have a positive effect on the outcome on our trial. The issue of patient recruitment is not expected to apply to the Phase II trial which will be conducted in less severely ill patients. The delay to patient recruitment may also have resource implications. Without Phase I clinical results (due in late 2011), it may be difficult to generate revenues from a commercial deal on the ImmunoBody® technology and it may therefore be necessary to augment the Company’s capital resources to complete the Phase II study.

Agreements and Collaborations

Scancell secured two key agreements during the year: a worldwide non-exclusive licensing agreement with the National Institutes of Health, an agency of the United States Department of Health and Human Services, for use of two melanoma antigens as key components of SCIB1; and, a licensing agreement with Cancer Research Technology Ltd, Cancer Research UK's commercialisation and development arm to use a human antibody for the development of new ImmunoBody® vaccines for any immunotherapy indication.

The Company also entered two important strategic collaborations: with ImmuneRegen BioSciences, Inc.®, a wholly owned subsidiary of IR BioSciences Holdings, Inc. (OTC BB:IRBS.OB) to investigate the synergy between ImmuneRegen's Homspera® and Scancell's ImmunoBody® vaccine technologies; and with immatics biotechnologies GmbH to explore the development of novel ImmunoBody® vaccines for colorectal cancer.

The Directors are pleased with Scancell’s progress during 2010 and look forward to updating shareholders on the future advancements in due course.

For further information contact:

Scancell Holdings Plc
Professor Lindy Durrant + 44 (0)207 245 1100

Hansard Communications
Kirsty Corcoran + 44 (0)207 245 1100

Zeus Capital - Nominated Adviser/Joint Broker
Ross Andrews/Tom Rowley + 44 (0)161 831 1512

Matrix Corporate Capital LLP - Joint Broker
Robert Naylor/Stephen Waterman +44 (0)20 3206 7340

Notes to Editors

During the past year, data has emerged from studies of two new treatments in Stage IV patients.

* Firstly, a study of a B-raf inhibitor in patients with advanced melanoma demonstrated tumour regression in 80% of patients (although this did not result in a long-term survival advantage).

** Secondly, a Phase III trial of the anti-CTLA4 monoclonal antibody ipilimumab has demonstrated prolonged survival of Stage IV melanoma patients, with 23.5% still alive after two years. This is the first drug to have a positive impact on survival and is likely to receive approval for use in patients with advanced metastatic melanoma next year. Even if this drug is approved, this still leaves 75% of patients with no appropriate therapy and in potential need of our vaccine.

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1 is being developed for the treatment of melanoma and has recently entered clinical trials.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.

Collaboration With ImmuneRegen BioSciences® Yields Positive Results in Cancer Vaccine Studies

Scancell Holdings Plc, (AIM: SCLP), the developer of therapeutic cancer vaccines, announces that a treatment utilising a DNA vaccine based on its ImmunoBody® technology, in combination with ImmuneRegen BioSciences, Inc.®’s lead compound, Homspera®, has significantly improved the immune response of the vaccine in an animal model. Follow-up studies are currently being performed to optimize the effects of Homspera in enhancing the next generation of Scancell’s cancer vaccines.

Scancell recently announced the commencement of a Phase I clinical trial utilizing its SCIB1 product being developed for the treatment of melanoma. SCIB1 is a novel DNA vaccine being developed using Scancell’s patented ImmunoBody® technology. ImmunoBody® vaccines generate the high-avidity T-cells that kill cancer cells, which may overcome the current limitations of most cancer vaccines. A unique advantage of Scancell’s Immunobody® technology is that it specifically targets dendritic cells, leading to a significant enhancement of the immune response.

ImmuneRegen’s Homspera has previously been found to improve the efficacy of a melanoma cancer vaccine in mice, resulting in persistent and specific immune responses associated with inhibition of melanoma tumor growth. Additionally, previous studies have demonstrated efficacy of Homspera in enhancing immune responses to infectious disease vaccines, such as influenza. Both applications are being aggressively developed by ImmuneRegen in combination with significant academic and industry partners.

Professor Lindy Durrant, Chief Executive Officer of Scancell, commented:

“I am pleased with the results achieved by this collaboration to date and look forward to continuing to work with ImmuneRegen as we progress with follow-up studies.”

Hal Siegel Ph.D., Chief Scientific Officer of ImmuneRegen, commented:

“We are pleased to see if we can positively augment immune responses elicited by Scancell’s ImmunoBody® vaccines. Based on our previous demonstration of enhanced dendritic cell responses to TRP2-encoding DNA vaccine following Homspera exposure, Scancell’s ImmunoBody® vaccine technology presents a very desirable developmental opportunity. We are very happy with our ongoing relationship and recognize that ongoing studies could potentially benefit both companies.”

ImmuneRegen BioSciences, Inc.® is a wholly owned subsidiary of IR
BioSciences Holdings, Inc. (OTC BB:IRBS.OB)

For further information contact:

Scancell Holdings Plc - Professor Lindy Durrant

  • + 44 (0)207 245 1100

Hansard Communications - John Bick/Kirsty Corcoran

  • + 44 (0)207 245 1100

Zeus Capital - Nominated Adviser/Joint Broker - Ross Andrews/Tom Rowley

  • + 44 (0)161 831 1512

Matrix Corporate Capital LLP - Joint Broker - Robert Naylor/Stephen Waterman

  • +44 (0)20 3206 7340

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1 is being developed for the treatment of melanoma and has recently entered clinical trials.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.

View the full Document

Antibody Licence Agreement with Cancer Research Technology

Scancell Holdings Plc, (AIM:SCLP), the developer of therapeutic cancer vaccines, and Cancer Research Technology Ltd (‘CRT’) - Cancer Research UK’s commercialisation and development arm today announce that they have signed an agreement under which Scancell has been granted a licence to use a human antibody known as 105AD7.

105AD7 is a human monoclonal antibody that mimics the complement regulatory protein, CD55. The antibody was discovered and originally developed at the University of Nottingham with support from Cancer Research UK and has previously been evaluated in clinical trials for osteosarcoma. The agreement will give Scancell a worldwide licence to use 105AD7 for the development of new ImmunoBody® vaccines for any immunotherapy indication. The licence will be restricted to the use of the antibody as a framework for future ImmunoBody® vaccines.

Scancell’s current ImmunoBody® vaccines, such as SCIB1, its vaccine currently in Phase I clinical trials for the treatment of melanoma, use a deimmunised* antibody as the framework. 105AD7 will allow Scancell to use a fully human framework for the development of future ImmunoBody® vaccines.

Under the terms of the agreement, Scancell will make an upfront payment to CRT in addition to development milestone payments, and royalty payments on future sales. Scancell will exclusively fund the development work, and have sub-licensing rights on agreed terms.

Professor Lindy Durrant, Chief Executive Officer of Scancell, commented:

“I am pleased that we have secured this important agreement with Cancer Research Technology. By utilising antibody 105AD7, Scancell will be able to further enhance the clinical utility and safety of Scancell’s ImmunoBody® platform both in cancer and other immunotherapy indications.”

Dr Phil L’Huillier, Cancer Research Technology’s director of business management, said:

“Through this deal with Scancell we are able to take forward this antibody arising from research from our worldclass scientists into commercial development to potentially make new vaccines to treat a range of diseases.”

*Deimmunization is a technology for location and removal of T-cell epitopes through the combined use of immunological and molecular biology techniques to reduce the immunogenicity of an antibody.

For further information contact:

Professor Lindy Durrant Scancell Holdings Plc

  • + 44 (0)207 245 1100

John Bick/Kirsty Corcoran Hansard Communications

  • + 44 (0)207 245 1100

Ross Andrews/Tom Rowley Zeus Capital

  • + 44 (0)161 831 1512

 

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1 is being developed for the treatment of melanoma and has recently entered clinical trials.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.

About Cancer Research Technology Ltd

Cancer Research Technology Limited (CRT) is a specialist commercialisation and development company, which aims to develop new discoveries in cancer research for the benefit of cancer patients. CRT works closely with leading international cancer scientists and their institutes to protect intellectual property arising from their research and to establish links with commercial partners. CRT facilitates the discovery, development and marketing of new cancer therapeutics, vaccines, diagnostics and enabling technologies. CRT is wholly owned by Cancer Research UK, the largest independent funder of cancer research in the world.

CRT's discovery laboratories build on exploratory research to create attractive commercial opportunities through collaboration with research institutes worldwide. Therapeutic programmes are then out-licensed for further development following identification of a suitable partner.

For more information visit the web site www.cancertechnology.com

About Cancer Research UK

Cancer Research UK is the world’s leading charity dedicated to beating cancer through research.

The charity’s groundbreaking work into the prevention, diagnosis and treatment of cancer has helped save millions of lives. This work is funded entirely by the public.

Cancer Research UK has been at the heart of the progress that has already seen survival rates double in the
last forty years.

Cancer Research UK supports research into all aspects of cancer through the work of more than 4,800
scientists, doctors and nurses.

Together with its partners and supporters, Cancer Research UK's vision is to beat cancer.

For further information about Cancer Research UK's work or to find out how to support the charity, please call
020 7121 6699 or visit www.cancerresearchuk.org.uk

Research collaboration with immatics to develop novel ImmunoBody® vaccines for colorectal cancer

Scancell Holdings Plc, (PLUS:SCLP), the developer of therapeutic cancer vaccines, today announces a research collaboration with immatics biotechnologies GmbH (“immatics”) to explore the development of novel ImmunoBody® vaccines for colorectal cancer.

immatics discovers and develops tumor-associated peptides (TUMAPs) for the immunotherapy of cancer. TUMAPs with the highest specificity for particular cancers are identified directly from primary human tumour tissue samples. From thousands of identified TUMAPs the most suitable ones are selected and combined to a single multi-peptide product to form a therapeutic cancer vaccine. The goal is to provoke a number of specific T-cell responses which finally result in the destruction of tumour cells presenting the TUMAPs.

immatics’ most advanced product, IMA901, has been evaluated in a Europe-wide multi-centre Phase II clinical trial in renal cancer. Positive data of this Phase II study have recently been published at the ASCO 2010 meeting. immatics’ pipeline also includes IMA910 for the treatment of colorectal carcinoma which has recently entered a large Phase I/II clinical trial.

Scancell’s first vaccine using its patented ImmunoBody® technology is SCIB1, a novel DNA vaccine being developed for the treatment of melanoma, which is currently in Phase 1 clinical trials. An advantage of Scancell’s Immunobody® platform is that it specifically targets dendritic* cells, leading to a significant enhancement of the immune response. This enhanced immune response against TRP-2 (a melanoma protein called Tyrosinase-Related Protein 2) is anticipated to lead to the inhibition and regression of both primary and metastatic melanoma tumour growth.

In the research collaboration with immatics, colorectal cancer-specific TUMAPs will be incorporated into ImmunoBody® constructs to create ImmunoBody® vaccines targeted towards colorectal cancer. If the research project is successful, immatics and Scancell will explore the further development of any product candidates.

Paul Higham, CEO of Immatics said

“We are very pleased to enter this research collaboration with Scancell as the colorectal TUMAPs identified by immatics have the potential to complement and enhance Scancell's ImmunoBody technology. We eagerly await the results.”

Professor Lindy Durrant, Chief Executive Officer of Scancell, commented:

“Our research collaboration with immatics will create the opportunity to bring together two world class technologies. We will be working together with immatics to evaluate the combination of the immatics’ TUMAP technology with Scancell’s ImmunoBody® technology for the development of novel vaccines for the treatment of colorectal cancer.”

* A type of white blood cell that initiates an immune response

The Directors of the issuer accept responsibility for this announcement.

For further information contact:

Professor Lindy Durrant, (CEO)  -  Scancell Holdings Plc:

  • +44 (0)207 245 1100

Katrin Eckert (Assistant to the Management)  -  immatics biotechnologies GmbH

John Bick/Kirsty Corcoran  -  Hansard Communications

  • +44 (0)207 245 1100
  • +44 (0)7872 061 007

Ross Andrews/Tom Rowley  -  Zeus Capital

  • +44 (0)161 831 1512

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1 is being developed for the treatment of melanoma and is currently in Phase 1 clinical trials.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.

About immatics

immatics biotechnologies is a clinical-stage biopharmaceutical company developing advanced therapeutic vaccines that are active against cancer. immatics’ lead product, IMA901 has completed a successful Phase II trial in renal cell carcinoma. immatics’ pipeline also includes IMA910, in Phase II for colorectal cancer, and IMA950 which is being developed for glioma.

immatics’ technology platform rapidly generates defined therapeutic cancer vaccines which are based on multiple tumor-associated peptides (TUMAPs) with the ability to specifically stimulate the immune system against cancer cells. These vaccines – comprising multiple peptides confirmed to be naturally presented by real tumor tissue – offer the prospect of greater effectiveness than existing cancer vaccine approaches combined with fewer side effects. immatics’ products are ‘drug like’ with stable, off -the- shelf formulations and robust easily scalable manufacturing. www.immatics.com

SCIB1 Phase I Trial Commences - First Patient Treated

Scancell Holdings Plc, (PLUS:SCLP), the developer of therapeutic cancer vaccines, today announces the enrolment and treatment of the first patient in its multicentre Phase I clinical trial of SCIB1, its DNA ImmunoBody® vaccine being developed for the treatment of melanoma. The trial will evaluate the safety and tolerability of SCIB1 in patients with late stage melanoma.

The trial, which is commencing on schedule, will be in nine, Stage IV or inoperable Stage III patients and is being conducted in three UK centres. All patients in the clinical trial will be treated with Scancell’s SCIB1 ImmunoBody® vaccine, delivered by Ichor Medical Systems’ TriGrid™ electroporation delivery device.

ImmunoBody® vaccines generate the high-avidity T-cells* that kill cancer cells, which may overcome the current limitations of most cancer vaccines. In vivo electroporation is widely regarded as an effective method of enhancing the potency of DNA vaccines by up to 100-fold compared to conventional methods of delivery.

Advanced melanoma currently has a very poor prognosis with late stage (stage IV) disease having a median survival of approximately six months. According to the World Health Organisation, 132,000 melanoma skin cancers occur globally each year and the incidence is increasing, especially in the United States, Europe and Australia.

Professor Lindy Durrant, CEO of Scancell Holdings and Professor of Cancer Immunotherapy at Nottingham University, commented:

“This is the first time we will be taking the SCIB1 ImmunoBody® vaccine into patients with late stage melanoma and follows our very positive research studies with the vaccine against this deadly form of cancer. We are very excited about the prospects for SCIB1 and are very pleased that it has moved a step closer to becoming available for the treatment of cancer patients.”

Professor Poulam Patel, Lead Researcher, commented:

“Advanced melanoma is one of the most deadly cancers we have and there is an urgent need for new treatments. The data from the laboratories looks very promising and we’re very excited to take SCIB1 into the clinic.”

David Evans, Chairman of Scancell Holdings, commented:

“The beginning of enrolment in the Phase I trial for SCIB1 is a key milestone for Scancell and we are delighted that the Company is continuing in its progress.”

The Directors of the issuer accept responsibility for this announcement.

*High avidity T-cells – A type of white blood cell composed of CTL and Helper cells. CTL cells recognise and kill tumour or virally infected cells, Helper cells recognise and secrete molecules to alert the immune system to the presence of a tumour or virally infected cell. Avidity measures the strength of the T-cell interaction.

For further information contact:

Professor Lindy Durrant, CEO  -  Scancell Holdings Plc  -  +44 (0)207 245 1100

John Bick/Kirsty Corcoran  -  Hansard Communications  -  +44 (0)207 245 1100

Ross Andrews/Tom Rowley  -  Zeus Capital  -  +44 (0)161 831 1512

About Scancell

Scancell is developing novel therapeutic vaccines for the treatment of cancer and infectious diseases based on its groundbreaking ImmunoBody® technology platform. Scancell’s first cancer vaccine SCIB1 is being developed for the treatment of melanoma and is expected to enter clinical trials in 2010.

Treating cancer by vaccination allows small non-toxic doses of a vaccine to be administered to a patient, stimulating an immune response. Effective cancer vaccines need to target dendritic cells to stimulate both parts of the cellular immune system; the helper cell system where inflammation is stimulated at the tumour site; and the cytotoxic T-lymphocyte or CTL response where immune system cells are primed to recognise and kill specific cells.

A limitation of many cancer vaccines currently in development is that they cannot specifically target dendritic cells in vivo. Several groups have demonstrated successful vaccination by growing dendritic cells ex vivo, pulsing them with tumour antigens and re-infusing them. However, this procedure is patient specific, time consuming and expensive. Scancell has developed its breakthrough patent protected ImmunoBody® technology to overcome these limitations.

An ImmunoBody® is a human antibody or fusion protein engineered to express helper cell and CTL epitopes from tumour antigens over-expressed by cancer cells. Antibodies are ideal vectors for carrying T cell epitopes from tumour antigens as they have long half-lives and can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of both helper and CTL responses.

The Immunobody® technology can be adapted to provide the basis for treating any tumour type and may also be of potential utility in the development of vaccines against hepatitis, HIV and other chronic infectious diseases.