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.

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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. 

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

• +49 (0)7071 5397 110
• [email protected]

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

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.

Scancell Holdings Plc, (PLUS:SCLP), the developer of therapeutic cancer vaccines, today announces a strategic collaboration with ImmuneRegen BioSciences, Inc.® (‘ImmuneRegen’), a wholly owned subsidiary of IR BioSciences Holdings, Inc. (OTC BB:IRBS.OB). Under the agreement, Scancell and ImmuneRegen will work together to investigate the synergy between ImmuneRegen’s Homspera® and Scancell’s ImmunoBody® vaccine technologies.

Scancell‘s first vaccine using its patented ImmunoBody® technology is SCIB1, a novel DNA vaccine being developed for the treatment of melanoma. 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 expected to lead to the inhibition and regression of both primary and metastatic melanoma tumor growth. Scancell is on track to commence its Phase I clinical trials for SCIB1 during Q2 2010.

ImmuneRegen’s Homspera® has previously been found to improve the efficacy of a TRP2 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.

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

“We are excited to be commencing this relationship with Scancell. As ImmuneRegen and Scancell move towards the clinic independently, we feel this is the ideal time to collaborate on this project, with the goal of evaluating the combination of Scancell’s dendritic cell targeting technology as applied to these melanoma antigens** and ImmuneRegen’s Homspera®, which has shown dendritic cell immunostimulatory activity via dendritic cell responses to TRP2 directed against melanoma tumors. Ideally, we could be creating a combined product that represents the ‘next generation’ of cancer vaccine technology.”

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

“Combining Scancell’s revolutionary ImmunoBody® technology with Homspera® might offer the opportunity to further improve the therapeutic potential of SCIB1. We are very much looking forward to collaborating with Immuneregen on this exciting project.”

* A type of white blood cell that initiates an immune response
**A molecule that is recognised by an antibody or T-cell receptor

The Directors of the issuer accept responsibility for this announcement.

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,  +44 (0)7872 061 007

Ross Andrews  -  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.

About ImmuneRegen BioSciences, Inc.

ImmuneRegen BioSciences Inc., a wholly owned subsidiary of IR BioSciences Holdings, Inc. (OTC BB:IRBS.OB-News), is a development-stage biotechnology company focused on the research, development and licensing of Homspera®. Homspera is an adult stem cell active compound that in study results has been shown to regenerate and strengthen the immune system and enhance wound healing. Homspera is being developed for potential use against infectious diseases as a stand-alone or combination therapy and as a vaccine adjuvant. Additionally, Homspera is being developed for use as a therapeutic for Idiopathic Pulmonary Fibrosis, an indication which ImmuneRegen has recently submitted for Orphan Drug Status. To advance its mission, the Scottsdale, Arizona based company has forged numerous study partnerships with industry and academic leaders, including Celgene Cellular Therapeutics, HemoGenix, Lovelace Respiratory Research Institute and Virion Systems. For more information, please visit www.immuneregen.com.

Scancell Holdings Plc, (PLUS:SCLP), the developer of therapeutic cancer vaccines, is pleased to announce it has signed a worldwide non-exclusive licensing agreement with the National Institutes of Health (‘NIH’), an agency of the United States Department of Health and Human Services, for use of the melanoma antigens TRP-2 and gp100, developed in the laboratory of Steven A. Rosenberg, M.D., Ph.D., at the National Cancer Institute. These antigens will be utilized as key components of Scancell’s lead ImmunoBody® vaccine for melanoma, SCIB1.

Under the agreement, Scancell has agreed to pay the US Public Health Service an undisclosed upfront fee in addition to certain milestone fees and a royalty on future sales of SCIB1. Scancell will have the right to develop and commercialise its ImmunoBody® vaccines for the treatment of melanoma in humans incorporating epitopes from these targets.

ImmunoBody® vaccines generate the high-avidity T-cells that kill cancer cells, which may overcome the current limitations of most cancer vaccines. Scancell is expected to commence its Phase I clinical trials for SCIB1 in Q2 2010.

David Evans, Chairman of Scancell, commented:

“This agreement strengthens Scancell’s IP position around SCIB1 and enables the Company to move forward towards its proposed clinical trials of the melanoma vaccine.”

The Directors of the issuer accept responsibility for this announcement.

For further information contact:

David Evans, Chaiman  -  Scancell Holdings Plc  -  +44 (0)774 008 4452

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.

Scancell Holdings Plc, (PLUS:SCLP), the developer of therapeutic cancer vaccines, is pleased to announce that its proposal to conduct a Phase I clinical trial on SCIB1, its DNA ImmunoBody® vaccine being developed for the treatment of melanoma, has been approved by the Gene Therapy Advisory Committee (‘GTAC’) and by the Medicines and Healthcare products Regulatory Agency (‘MHRA’) Medicines Division. In addition, Scancell’s partner Ichor Medical Systems (‘Ichor’) has obtained the required parallel approval from the MHRA Devices Division for the use of Ichor’s TriGrid™ electroporation delivery device to administer SCIB1 to patients participating in the trial of SCIB1.

Recruitment for the Phase I clinical trial of SCIB1 is expected to commence shortly at three leading UK hospital centres in Nottingham, Manchester and Newcastle.

SCIB1 is a novel DNA ImmunoBody® vaccine being developed using Scancell’s patented ImmunoBody® technology for the treatment of melanoma. 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. Scancell is confident that TriGrid™ will provide the most effective delivery system for its SCIB1 melanoma vaccine as it enters clinical trials.

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.

David Evans, Chairman of Scancell, commented:

“With the approvals from GTAC and MHRA in place Scancell will commence the Phase I clinical trial of our first therapeutic cancer vaccine SCIB1 during this second quarter which is exactly on track with our programme and marks a significant step for the Company. We look forward to updating shareholders again in due course.”

The Directors of the issuer accept responsibility for this announcement.

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/+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 will 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 DNA vaccine encoding 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 can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of high avidity and high frequency 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 Ichor

Ichor Medical Systems’ TriGrid™ Delivery System is the first integrated and fully automated system for electroporation-mediated DNA administration. Ichor, a privately-held biotech company based in San Diego, CA, is collaborating with partners on three continents in a wide range of studies to test the TriGrid™ as an enabling platform for delivery of DNA drugs and vaccines to treat diseases such as pandemic flu, hepatitis, HIV, melanoma, multiple sclerosis, and others. The TriGrid™ is also being tested by the U.S. military as an efficient means of delivering anti-bioterrorism agents.

Scancell Holdings Plc, (PLUS:SCLP), the developer of therapeutic cancer vaccines, is pleased to announce that its proposal to conduct a Phase I clinical trial on SCIB1, its DNA ImmunoBody® vaccine being developed for the treatment of melanoma, was submitted to the Gene Therapy Advisory Committee (‘GTAC’) on 29 December 2009. In addition, Scancell and its partner Ichor Medical Systems (‘Ichor’) submitted parallel applications to the Medicines Division and to the Devices Division of the Medicines and Healthcare products Regulatory Agency (‘MHRA’) on 29 January 2010 requesting approvals for the clinical trial of SCIB1 and for the use of Ichor’s TriGrid™ electroporation delivery device to administer SCIB1 to participating patients, respectively.

SCIB1 is a novel DNA ImmunoBody® vaccine being developed using Scancell’s patented ImmunoBody® technology for the treatment of melanoma. 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. Scancell is confident that TriGrid™ will provide the most effective delivery system for its SCIB1 melanoma vaccine as it enters clinical trials.

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.

David Evans, Chairman of Scancell, commented:

“Scancell’s CTA submission and proposal to GTAC to conduct the Phase I clinical trial for our first therapeutic cancer vaccine marks a significant step for the Company and we look forward to reporting on its progress. We are confident that, subject to regulatory and ethical approvals, the Phase I clinical trial for SCIB1 will be on target to commence in Q2 2010.”

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/+44 (0)7872 061 007

Ross Andrews  -  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 will enter clinical trials in early 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 vaccine 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 DNA vaccine encoding 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 can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of high avidity and high frequency 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 Ichor

Ichor Medical Systems’ TriGrid™ Delivery System is the first integrated and fully automated system for electroporation-mediated DNA administration. Ichor, a privately-held biotech company based in San Diego, CA, is collaborating with partners on three continents in a wide range of studies to test the TriGrid™ as an enabling platform for delivery of DNA drugs and vaccines to treat diseases such as pandemic flu, hepatitis, HIV, melanoma, multiple sclerosis, and others. The TriGrid™ is also being tested by the U.S. military as an efficient means of delivering anti-bioterrorism agents.

Scancell Holdings Plc, (PLUS:SCLP), the parent company of Scancell Limited (‘Scancell’), the developer of innovative therapeutic cancer vaccines, is pleased to announce that it expects to commence its Phase I/II clinical trial with SCIB in the first half of 2010. PharmaNet Development Group (PharmaNet), a top-ten clinical research organization, has been selected for the conduct and management of the study.

Scancell’s SCIB1 is a DNA ImmunoBody® vaccine for the treatment of melanoma. SCIB1 was developed using Scancell’s patented ImmunoBody® technology. ImmunoBody® vaccines generate the high-avidity T-cells that kill cancer cells, overcoming the current limitations of most cancer vaccines. 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.

PharmaNet has extensive oncology experience from more than 200 studies, at over 9600 investigative sites with over 50,000 patients.

David Evans, Chairman of Scancell, commented:

“We are delighted to have selected PharmaNet to manage Scancell’s Phase I/II clinical trial programme with SCIB1. PharmaNet’s extensive experience, particularly in the management of early stage oncology clinical trials, will be of critical importance to Scancell as SCIB1 moves into clinical development.”

Jeffrey McMullen, President and Chief Executive Officer, PharmaNet Development Group, commented:

"This is our first project with Scancell. We are thrilled to work on Scancell’s innovative therapeutic cancer vaccine, SCIB1, and are very pleased that they have entrusted PharmaNet with their study.”

The Directors of the issuer accept responsibility for this announcement.

For further information contact:

Professor Lindy Durrant  -  Scancell Holdings Plc  -  +44 207 245 1100

Adam Reynolds/Vikki Krause  -  Hansard Group  -  +44 7515 922906

Ross Andrews  -  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 will enter clinical trials in early 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 DNA vaccine encoding 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 can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of high avidity and high frequency 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 PharmaNet Development Group, Inc.

PharmaNet Development Group, Inc., a global drug development services company, provides a comprehensive range of services to the pharmaceutical, biotechnology, generic drug and medical device industries. The Company offers early and late stage consulting, Phase I clinical studies and bioanalytical analyses, and Phase II, III and IV clinical development programs. With approximately 2,300 employees and 40 facilities throughout the world, PharmaNet is a recognized leader in outsourced clinical development. For more information, please visit www.pharmanet.com.

Scancell Holdings Plc, (PLUS:SCLP) the parent company of Scancell Limited (‘Scancell’), the developer of therapeutic cancer vaccines based on its patented ImmunoBody® platform, is pleased to announce that the current Good Manufacturing Practice (‘cGMP’) production of Scancell’s SCIB1 DNA vaccine has been successfully completed ahead of the planned clinical trials that are expected to commence on schedule in H1 2010.

SCIB1 is being developed for the treatment of melanoma. The vaccine has been developed using Scancell’s patent-protected ImmunoBody® technology platform that overcomes the current limitations of most cancer vaccines by generating the high-avidity T-cells that kill cancer cells. Melanoma kills over 1,800 people every year in the UK, with over 130,000 new cases of the disease being reported annually worldwide. Advanced melanoma currently has a very poor prognosis with late stage (stage IV) disease having a median survival of approximately 6 months.

The cGMP manufacturing was completed by AIM-Listed Cobra Biomanufacturing Plc (AIM:CBF), the international manufacturer of biopharmaceuticals. The final release of the product for SCIB1 clinical trials is anticipated mid-Q4 2009 and will be undertaken by Cobra’s in-house QP.

David Evans, Chairman of Scancell, commented:

“Cobra Biomanufacturing has done an excellent job manufacturing our SCIB1 DNA vaccine on time and on budget. This is another important step forward towards our goal of starting clinical trials with SCIB1 in the first half of 2010.”

Simon Saxby, Chief Executive of Cobra Biomanufacturing said:

”It has been a pleasure to work with Scancell on the production of their SCIB1 vaccine. The two teams have worked closely together to make this a highly successful project and we wish Scancell every success with their clinical trials. The Cobra team look forward to working with Scancell in the future.”

The Directors of the issuer accept responsibility for this announcement.

For further information contact:

Professor Lindy Durrant  -  Scancell Holdings Plc  -  +44 207 245 1100

Adam Reynolds/Vikki Krause  -  Hansard Group  -  +44 7515 922906

Ross Andrews  -  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 will enter clinical trials in early 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 DNA vaccine encoding 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 can effectively target dendritic cells via their Fc receptors, allowing efficient stimulation of high avidity and high frequency 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 Cobra Biomanufacturing Plc:

Cobra Biomanufacturing Plc is a leading international manufacturer of biopharmaceuticals to the lifescience industry. Founded in 1992, Cobra provides innovative manufacturing solutions to the biopharmaceutical industry covering DNA, virus, cellular therapeutics and recombinant protein products. Cobra has developed a range of unique, patented technologies, which underpin a successful revenue generating contract manufacturing business.

www.cobrabio.com