Stem Cell Clinic

Study: Mutations in stem cells of young donors can be passed to recipients – STAT

Doctors use stem cell transplants to treat patients with certain cancers or blood disorders. And donors, whose blood or bone marrow is used for the procedures, are typically young, for a variety of reasons.

But a pilot study released Wednesday raised the possibility that such donors are also passing along mutations in stem cells that could lead to health problems for some recipients.

The study found that nearly 45% of younger donors had mutations in the transplanted stem cells that could raise the risk of conditions that are sometimes seen in recipients, a higher rate than presumed. Researchers also reported that some of these mutations persisted and proliferated in the recipients bone marrow for at least a year.

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What remains unknown is whether those mutations are actually contributing to health problems for recipients.

The study was small, with just 25 donors included and was not large enough and did not last long enough to determine whether people who received cells with these mutations had worse outcomes after a transplant than recipients who got cells without those mutations. Dr. Todd Druley, the senior author of the paper, which was published in the journal Science Translational Medicine, emphasized that patients should continue to receive these stem cells to treat their leukemias or anemias when recommended.

What were trying to say is that now we can provide surveillance before, during, and after a bone marrow transplant so that if theres an increased risk for a particular outcome, treatment for that and surveillance for that can be instituted sooner, said Druley, a pediatric oncologist at Washington University in St. Louis.

Researchers not involved with the study praised its technical prowess, and said it was worth investigating further to see if the transplanted mutations did lead to worse outcomes for recipients projects that Druley and his colleagues have underway. But they agreed it should not yet change clinical practice.

Donors are already screened to make sure they have a clean bill of health and make for a good match for recipients, based on their immune systems. Experts said it would be unrealistic to screen every potential donor for the kinds of mutations Druley and his team found. Those mutations were infrequent, and it wasnt clear they posed health risks to recipients.

We know that younger donors are better than older donors. We know that the better the donor the better the outcomes. We dont know how these ultra-low level mutations affect outcomes at all, said Dr. Corey Cutler, the medical director of the adult stem cell transplantation program at Dana-Farber Cancer Institute.

Hematopoietic stem cells generate blood and immune cells. They are sometimes transplanted into patients with certain blood or immune disorders or cancers whose own cells have been wiped out by chemotherapy, essentially restocking the recipients with healthy cells.

But recipients of these transplants sometimes experience graft versus host disease (when the transplant attacks the recipients tissues), heart or immune conditions, or even secondary cancers. Some experts have suspected these conditions might be caused by mutations in donor stem cells, among other factors. Its in part why they favor younger donors, who are expected to have fewer mutations than older donors. (Donors from 18 to 44 account for 86% of transplants for unrelated patients. Relatives often make for better donors because they are more likely to be matched to recipients based on immune system molecules.)

Most of these mutations are probably benign. But its possible that other mutations not only pose a health risk, but also give their host cells a boost over other cells, helping them proliferate over time. That might mean someone who is 40 could have a bad mutation in one in 5,000 cells, but by the age of 50, it could be in one in 50 cells, Druley explained.

The challenge is detecting those mutations. Standard sequencing technology may pick up mutations if they appear in just a small percentage of cells, but for young donors, it would be like finding the few pebbles in a beach full of sand.

Next-generation sequencing is good if you want to find a mutation thats in 20% of cells youre looking at, or even 5%, Druley said. Were looking at mutations that are one in a thousand, or down to one in ten thousand.

For the new study, Druley and colleagues trained a more powerful tool they call error-corrected sequencing on the cells of the 25 donors, who ranged from 20 to 58 years old. (Fifty-eight would be considered older donors, but the median age of the donors in the study was 26.) They looked for mutations in 80 genes in particular, including genes that, when mutated, are associated with leukemia.

What they found: 11 donors had a collective 19 mutations that were not picked up by standard sequencing technology 16 of which were pathogenic, meaning disease causing.

The researchers also studied the recipients, finding that 14 of the 19 mutations had engrafted, or been taken up by the recipient and started to generate other cells, and were still there a year after the transplant. Thirteen of these mutations were pathogenic.

Researchers said it made sense that younger adults had these types of mutations, even if scientists hadnt previously been able to spot them.

Its known that mutations accumulate over time, said Dr. Ross Levine, a leukemia specialist at Memorial Sloan Kettering Cancer Center, who was not involved in the new study. The question has always been in other scenarios if you can detect these clones at earlier or in different contexts, and if they mean anything.

The new study was not set up to answer that last question.

Thats the next phase of this research, Druley said. Some of these mutations, if theyre going to have an effect, may not have an effect for many, many years. And we had a small population. So we didnt have enough numbers or enough time.

Outside researchers said that if these stem cell mutations do contribute to diseases once transferred to recipients, it might take so long or happen so infrequently that it would be difficult to study. Dana-Farbers Cutler said that, for example, cases of donor-derived leukemia when the recipient develops blood cancer after a transplant occur in less than 1% of transplants from unrelated donors.

If the mutations do increase the likelihood of complications in recipients, then why arent they posing a problem for the donors themselves? That might also be tied to the prevalence of these mutations, the researchers said.

In donors, these mutations might appear in, say, 1% of cells, and there is competition among cells of all different types of genetic variants to multiply. Plus, donors have healthy immune systems that can help suppress bad actors.

But if cells with these mutations make their way into recipients who have had their own cells blasted away with chemotherapy, its a new race. The mutations might give them some advantage to multiply faster than other cells that were transplanted. And as the percentage of cells with these mutations rises, they might be more likely to cause disease.

When you have these mutations in a host, it may take decades for them to expand to the point of causing issues, Levine said. In a recipient, however, its almost like youve reset the playing field.

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Study: Mutations in stem cells of young donors can be passed to recipients - STAT

Landmark Results for CaverStem Procedure Published in Journal of Translational Medicine to Create Paradigm Shift in Treatment of Erectile Dysfunction…

PHOENIX, Jan. 15, 2020 /PRNewswire/ -- Creative Medical Technology Holdings, Inc. (OTC: CELZ), a leading commercial stage biotechnology company focused on Urology, Neurology and Orthopedics using stem cell treatments, today announced publication of clinical trial data on CaverStem procedure for drug resistant erectile dysfunction (ED) patients in the Journal of Translational Medicine.

The peer reviewed publication describes a total of 140 patients treated with the CaverStem procedure (40 patients in primary trial and 100 in the clinical registry) that suffered from erectile dysfunction for whom standard drug interventions such as Cialis, Levitra, and Viagra (PDE-5) were ineffective.

The CaverStem trial, one of the largest clinical studies of a non-drug treatment for erectile dysfunction, supports the safety and efficacy of autologous, non-expanded bone marrow concentrate for treatment of ED patients.

We would like to thank all the patients and the Clinical teams which have made the CaverStem program possible. The independently monitored data demonstrated the safety of the program along with the real world clinical registry which demonstrated early efficacy signals, said Amit Patel, MD, MS, Board Member of the Company.

Its exciting to see the evolution of our patented cell based intervention first described in 2013 in the Journal of Translational Medicine (now being offered in the clinic through qualified physicians) having such a positive impact on the lives of treated patients, said Thomas Ichim PhD, co-inventor of CaverStem and Chief Scientific Officer at Creative Medical Technology Holdings, Inc.

The positive results reflected in the publication validates the many years of devotion and investment in the CaverStem Program, said Timothy Warbington, President and CEO of Creative Medical Technology Holdings, Inc. 2020 is setting up to be a breakthrough year for the company as we plan to partner this landmark publication with heavy investment in physician recruitment and consumer awareness to accelerate commercialization of CaverStem.

Link to the complete peer reviewed publication: https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-019-02195-w

About Erectile Dysfunction Erectile dysfunction (ED) is characterized by the lack of ability to achieve and maintain penile erection for intercourse. Methods used to quantify ED include the Erectile Function Visual Analog Scale (EF-VAS) and the International Index of Erectile Function (IIEF-5), however clinically it is primarily diagnosed based on symptomology. In our aging society, ED is becoming an increasing problem. According to one study 39% of men at age 40 experience symptoms of ED, whereas by age 70 the incidence rises to 67%. In this latter age group, it is believed that 50-85% of ED cases are associated with hypertension, diabetes, cardiovascular disease and dyslipidemia. Overall, it is estimated that over 30 million American men suffer from this condition.

About Creative Medical Technology Holdings, Inc. Creative Medical Technology Holdings, Inc. is a commercial stage biotechnology company currently trading on the OTC under the ticker symbol CELZ. For further information about the company go to http://www.creativemedicaltechnology.com. For more information on our CaverStem procedure please go to http://www.caverstem.com.

Forward-Looking Statements OTC Markets has not reviewed and does not accept responsibility for the adequacy or accuracy of this release. This news release may contain forward-looking statements including but not limited to comments regarding the timing and content of upcoming clinical trials and laboratory results, marketing efforts, funding, etc. Forward-looking statements address future events and conditions and, therefore, involve inherent risks and uncertainties. Actual results may differ materially from those currently anticipated in such statements. See the periodic and other reports filed by Creative Medical Technology Holdings, Inc. with the Securities and Exchange Commission and available on the Commissions website at http://www.sec.gov.

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Bluebird Bio taps ex-Celgene exec Heffron to lead its first gene therapy launch – FiercePharma

After a manufacturing specification delay, Bluebird Bio has officially launched Zynteglo, its first gene therapy, andtapped a new leader to run the operation.

Nicola Heffron, a former exec with Celgene, Shire and GlaxoSmithKline, has joined Bluebird as its European chief, Bloomberg reported, just as the company gets its rollout underway there. She is replacing Andrew Obenshain, whos moving up to the global leadership team.

Heffron is tasked with charting the course for Bluebirds first commercial launch of its first product, Zynteglo, to treatbeta thalassemia, a rare inherited disease marked by reduced production of oxygen-carrying hemoglobin in red blood cells.

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And Heffron knows a thing or two about blood disorders. Before Bluebird, she headed up global marketing for Celgenes myeloid portfolio, her LinkedIn profile shows.

Wednesday, Bluebird revealed that the $1.76 million-per-treatment gene therapy is now available in Germany. The University Hospitalof Heidelberg serves as the drugs first qualified treatment center inthe country, and Bluebird said its working with institutions that have expertise in stem cell transplant as well as in treating patients with [beta thalassemia] to establish more centers.

RELATED:Bluebird Bio readies Zynteglo launch as EU approves 'refined' manufacturing

During a presentation at the annual J.P. Morgan Healthcare Conference on Tuesday, Bluebird CEO Nick Leschly confirmed the companysvalue-based payment model for the costly onetime therapy. Under that arrangement,payments of 315,000 ($351,000) each are made in five installments over five years. Except for the first round of expenses, payers only pay the rest if Zynteglo delivers on its therapeutic promise.

So far, the reimbursement agreements Bluebird has penned using that model can coverabout half of Germanys patients, according to Leschly.

Novartis has also rolled out a similar program for its $2.1 million spinal muscular atrophy gene therapy Zolgensma.

Bluebird won its European nod for Zynteglo last year but delayed the launch after a manufacturing specification hiccup. The Cambridge, Massachusetts-based biotech has established a manufacturing network that includes both internal facilitiesand contract partners for itslentiviral vector and drug product, Leschly said Tuesday.

RELATED:ASH: Bluebird's multiple myeloma CAR-T follow-up shows promise in phase 1

In the U.S., Bluebird has started itsrolling submission for approval and is in talks with the FDA regarding the requirements and timing of the various components of the application. Its expecting to finish the process in the first half of 2020.

Outside of beta thalassemia, Bluebird is testing the same drug, also known as LentiGlobin, in sickle cell disease, which is also marked by an abnormality in hemoglobin.

According to phase 1/2 data presented at last years American Society of Hematology annual meeting in December, none of the 17 patients enrolled in group Cwhich used an improved stem cell harvest technique and a new manufacturing processrequired regular blood transfusions post-treatment. Nine patients had beenfollowed for at least six months at that data cutoff.

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Bluebird Bio taps ex-Celgene exec Heffron to lead its first gene therapy launch - FiercePharma

Actinium Pharmaceuticals Announces Iomab-ACT Program Gene Therapy Collaboration with UC Davis in Ongoing Clinical Trial for Patients with HIV-Related…

- Trial will replace currently used chemotherapy conditioning with apamistamab-I-131, Actinium's targeted conditioning ARC, to selectively eliminate lymphoma cancer cells and stem cells to enable engraftment of stem cell gene therapy

- Anti-HIV stem cell gene therapy intended to simultaneously treat patients' HIV-related lymphoma and develop immune cells resistant to HIV

NEW YORK, Jan. 13, 2020 /PRNewswire/ --Actinium Pharmaceuticals, Inc. (NYSE AMERICAN: ATNM) ("Actinium"), announced today that it has entered into an agreement with the University of California, Davis (UC Davis) to utilize Actinium's Antibody Radiation-Conjugate or ARC apamistamab-I-131 for targeted conditioning and replace the chemotherapy conditioning being used in an ongoing Phase 1/2 stem cell gene therapy clinical trial. In the trial, patients with relapsed or refractory HIV-related lymphoma are being treated with autologous stem cell gene therapy. This is the first gene therapy clinical trial that will utilize ARC based conditioning. The clinical trial will be conducted at UC Davis and may be expanded to additional sites in the future.

(PRNewsfoto/Actinium Pharmaceuticals, Inc.)

Dr. Mehrdad Abedi, Professor, Hematology and Oncology at UC Davis and study lead, said, "This collaboration represents an exciting combination of revolutionary technologies that could further our ability to treat patients with HIV and other life-threatening diseases with gene therapy. Despite the advances made in the field of gene therapy, the reliance on non-targeted chemotherapy and external radiation as conditioning regimens is less than optimal and poses a problem that we hope to reduce or eliminate as part of this collaboration by replacing our conditioning regimen in this study with Actinium's ARC based targeted conditioning. Advances in HIV therapies have dramatically improved patient survival, but current therapies require life-long daily use to keep the HIV virus at bay, can have severe side effects, may be overcome by HIV resistance and do not address the needs of all patients like those in this study with HIV-related lymphomas. We envision a future where a single treatment of our stem cell gene therapy can cure patients of their lymphoma and HIV leaving the patient with a new immune system that can fight, be resistant to and prevent the mutation of HIV. Apamistamab-I-131's demonstrated antitumor effect against lymphoma and ability to condition patients in a targeted manner with a demonstrated tolerable safety profile in the bone marrow transplant setting makes it an ideal conditioning agent for this patient population. Based on these factors and extensive supporting clinical data in the Iomab-B program, we selected this ARC as the conditioning agent for the next phase of our trial as we believe antibody radiation-conjugates are more advanced and hold distinct advantages over novel but unproven conditioning technologies such as Antibody Drug Conjugates and naked antibodies that are beginning to be developed albeit at the preclinical stage."

In the current clinical trial, the anti-HIV stem cell gene therapy is produced by taking a patient's own or autologous, blood forming stem cells and genetically modifying them via gene therapy with a combination of three anti-HIV genes. The intended result is for the gene modified bone marrow stem cells to produce a new immune system and newly arising immune cells that are resistant to HIV via a single treatment. Conditioning is necessary prior to adoptive cell therapies such as gene therapy to eliminate certain cell types such as immune cells and stem cells in the bone marrow so the transplanted cells can engraft. Until now, conditioning in this trial, as is typical, used a multi-drug chemotherapy regimen administered over several days. This approach is non-targeted, associated with toxicities that impairs patients and restricts the use and efficacy of cellular therapy. Apamistamab-I-131, which requires just one therapeutic administration, will displace the non-targeted chemotherapy to condition patients in a targeted manner with the goal of reducing conditioning related toxicities and improving patient outcomes. Actinium and UC David will cross-reference their respective Investigational New Drug applications and will work collaboratively to obtain necessary regulatory and institutional approvals. In this clinical collaboration, Actinium will provide drug product, support for its administration and certain trial costs. UC Davis will be responsible for the production of the anti-HIV stem cell gene therapy and overall conduct of the study and its cost.

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Dr. Dale Ludwig, Actinium's Chief Scientific Officer, said, "We are excited to be working with Dr. Abedi on this clinical study and we appreciate his recognition of the value of our Iomab-ACT targeted conditioning program may provide in support of gene stem cell therapy. This targeted approach using our CD45 ARC, enables both anti-tumor activity and effective conditioning with the potential for reduced toxicity compared to non-targeted chemotherapy and external radiation in the bone marrow transplant setting. Supported by extensive clinical investigation in 12 trials and over 300 patients, a single therapeutic dose of apamistamab-I-131 is sufficient for conditioning and, due to its dual activity, even a patient with active disease could expect to receive therapy within two weeks, which is anticipated to lead to better outcomes compared to chemotherapy, external beam radiation, or exploratory approaches such as naked antibodies or Antibody Drug Conjugates. In addition, CD45, the target of apamistamab-I-131, is ideal for targeted conditioning, as it is not expressed outside of the haemopoietic system and, because it is a poorly internalizing receptor. An ARC approach which does not require internalization of its radionuclide warhead for target cell killing, is anticipated to be more viable and more effective than Antibody Drug Conjugate approaches which need to internalize their payloads. Given the potential of this ARC targeted conditioning technology for bone marrow transplant, we are grateful to Dr. Abedi for the opportunity to advance the Iomab-ACT program into the promising field of gene stem cell therapy."

Sandesh Seth, Actinium's Chairman and Chief Executive Officer, said, "Actinium is thrilled to be working with UC Davis and honored to now be part of this important trial. It has become evident that better conditioning regimens are needed for cell and gene therapies to reach their full potential. Our team is proud to be the first company to establish a clinical stage targeted conditioning portfolio for both cell and gene therapy. We are pleased to extend our ARC technology for targeted conditioning into these rapidly advancing fields and we are committed to establishing a strong leadership position in enabling these adoptive cell therapies fully realize their great potential for improving patients' lives."

Apamistamab-I-131's demonstrated conditioning and antitumor effect in lymphoma1

Actinium's apamistamab-I-131 ARC has been studied as a targeted conditioning agent in over 300 patients in the bone marrow transplant setting in the Iomab-B Program and is currently being studied in a pivotal Phase 3 clinical (SIERRA) trial in patients with relapsed or refractory acute myeloid leukemia. Clinical proof of concept has been established with Iomab-B for targeted conditioning in high-risk, relapsed or refractory lymphoma patients prior to an autologous stem cell transplant where a favorable safety profile with no dose limiting toxicities and minimal non-hematologic toxicities observed and promising efficacy with median overall survival not reached (range: 29 months to infinity) and 31% of patients in prolonged remission at a median of 36 months follow up (range: 25 41 months)1.

1) Cassaday et al. Phase I Study of a CD45-Targeted AntibodyRadionuclide Conjugate for High-Risk Lymphoma. AACR Clin Cancer Res Published OnlineFirst September 3, 2019

About Actinium Pharmaceuticals, Inc.

Actinium Pharmaceuticals, Inc. is a clinical-stage biopharmaceutical company developing ARCs or Antibody Radiation-Conjugates, which combine the targeting ability of antibodies with the cell killing ability of radiation. Actinium's lead application for our ARCs is targeted conditioning, which is intended to selectively deplete a patient's disease or cancer cells and certain immune cells prior to a BMT or Bone Marrow Transplant, Gene Therapy or Adoptive Cell Therapy (ACT) such as CAR-T to enable engraftment of these transplanted cells with minimal toxicities. With our ARC approach, we seek to improve patient outcomes and access to these potentially curative treatments by eliminating or reducing the non-targeted chemotherapy that is used for conditioning in standard practice currently. Our lead product candidate, apamistamab-I-131 (Iomab-B) is being studied in the ongoing pivotal Phase 3 Study of Iomab-B in Elderly Relapsed or Refractory Acute Myeloid Leukemia (SIERRA) trial for BMT conditioning. The SIERRA trial is over fifty percent enrolled and promising single-agent, feasibility and safety data has been highlighted at ASH, TCT, ASCO and SOHO annual meetings. Apatmistamamb-I-131 will also be studied as a targeted conditioning agent in a Phase 1/2 anti-HIV stem cell gene therapy with UC Davis and is expected to be studied with a CAR-T therapy in 2020. In addition, we are developing a multi-disease, multi-target pipeline of clinical-stage ARCs targeting the antigens CD45 and CD33 for targeted conditioning and as a therapeutic either in combination with other therapeutic modalities or as a single agent for patients with a broad range of hematologic malignancies including acute myeloid leukemia, myelodysplastic syndrome and multiple myeloma. Ongoing combination trials include our CD33 alpha ARC, Actimab-A, in combination with the salvage chemotherapy CLAG-M and the Bcl-2 targeted therapy venetoclax. Underpinning our clinical programs is our proprietary AWE (Antibody Warhead Enabling) technology platform. This is where our intellectual property portfolio of over 100 patents, know-how, collective research and expertise in the field are being leveraged to construct and study novel ARCs and ARC combinations to bolster our pipeline for strategic purposes. Our AWE technology platform is currently being utilized in a collaborative research partnership with Astellas Pharma, Inc.

Forward-Looking Statements for Actinium Pharmaceuticals, Inc.

This press release may contain projections or other "forward-looking statements" within the meaning of the "safe-harbor" provisions of the private securities litigation reform act of 1995 regarding future events or the future financial performance of the Company which the Company undertakes no obligation to update. These statements are based on management's current expectations and are subject to risks and uncertainties that may cause actual results to differ materially from the anticipated or estimated future results, including the risks and uncertainties associated with preliminary study results varying from final results, estimates of potential markets for drugs under development, clinical trials, actions by the FDA and other governmental agencies, regulatory clearances, responses to regulatory matters, the market demand for and acceptance of Actinium's products and services, performance of clinical research organizations and other risks detailed from time to time in Actinium's filings with the Securities and Exchange Commission (the "SEC"), including without limitation its most recent annual report on form 10-K, subsequent quarterly reports on Forms 10-Q and Forms 8-K, each as amended and supplemented from time to time.

Contacts:

Investors:Hans VitzthumLifeSci Advisors, LLCHans@LifeSciAdvisors.com(617) 535-7743

Media:Alisa Steinberg, Director, IR & Corp Commsasteinberg@actiniumpharma.com(646) 237-4087

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Actinium Pharmaceuticals Announces Iomab-ACT Program Gene Therapy Collaboration with UC Davis in Ongoing Clinical Trial for Patients with HIV-Related...

Hemogenyx’s CAR-T Cells are Effective Against AML in vitro – GuruFocus.com

LONDON, UK / ACCESSWIRE / January 15, 2020 / Hemogenyx Pharmaceuticals plc (LSE:HEMO) ("Hemogenyx" or the "Company"), the biopharmaceutical group developing new therapies and treatments of blood diseases, is pleased to announce the following update on its activities.

As previously announced, Hemogenyx's CDX product has the potential to treat Acute Myeloid Leukemia (AML) directly as well as providing a benign conditioning regimen for blood stem cell replacement therapy. The Company has now carried out extensive work developing treatments for AML and has to date obtained encouraging results.

Hemogenyx has successfully constructed and in vitro tested Chimeric Antigen Receptor (CAR) programmed T cells (HEMO-CAR-T) for potential treatment of AML. HEMO-CAR was constructed using Hemogenyx's proprietary humanized monoclonal antibody against a target on the surface of AML cells. The Company has demonstrated that HEMO-CAR was able to programme human T cells (converted them into HEMO-CAR-T) to identify and destroy human AML derived cells in vitro.

Following the successful completion of these tests, in vivo tests of the efficacy of HEMO-CAR-T against AML are being conducted utilising a model of AML using Advanced peripheral blood Hematopoietic Chimera (ApbHC) - humanized mice developed by Immugenyx, LLC, a wholly-owned subsidiary of Hemogenyx.

Vladislav Sandler, Chief Executive Officer, commented, "We are encouraged by this new data which demonstrates our continuing progress in the development of novel treatments for blood cancers such as AML. The development of HEMO-CAR-T expands Hemogenyx's pipeline and advances it into a cutting-edge area of cell-based immune therapy. We are excited to have developed another product candidate that should, if successful, provide a new and potentially effective treatment for blood cancers for which survival rates are currently very poor."

About AML and CAR-T

AML, the most common type of acute leukemia in adults, has poor survival rates (a five-year survival rate of less than 25% in adults) and is currently treated using chemotherapy, rather than the potentially more benign and effective form of therapy being developed by Hemogenyx. The successful development of the new therapy for AML would have a major impact on treatment and survival rates for the disease.

CAR-T therapy is a treatment in which a patient's own T cells, a type of immune cell, are modified to recognize and kill the patient's cancer cells. The procedure involves: isolating T cells from the patient, modifying the isolated T cells in a laboratory using a CAR gene construct (which allows the cells to recognize the patient's cancer); amplifying (growing to large numbers) the newly modified cells; and re-introducing the cells back into the patient.

Market Abuse Regulation (MAR) Disclosure

Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No 596/2014 until the release of this announcement.

Enquiries:

Hemogenyx Pharmaceuticals plc

http://www.hemogenyx.com

Dr Vladislav Sandler, Chief Executive Officer & Co-Founder

[emailprotected]

Sir Marc Feldmann, Executive Chairman

SP Angel Corporate Finance LLP

Tel: +44 (0)20 3470 0470

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Peterhouse Corporate Finance Limited

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US Media enquiries

Tel: +1 (323) 646-3249

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[emailprotected]

About Hemogenyx Pharmaceuticals plc

Hemogenyx Pharmaceuticals plc ("Hemogenyx") is a publicly traded company (LSE: HEMO) headquartered in London, with its wholly-owned US operating subsidiaries, Hemogenyx LLC and Immugenyx LLC, located in New York City at its state-of-the-art research facility and a wholly-owned Belgian operating subsidiary, Hemogenyx-Cell SPRL, located in Lige.

Hemogenyx is a pre-clinical stage biopharmaceutical group developing new medicines and treatments to bring the curative power of bone marrow transplantation to a greater number of patients suffering from otherwise incurable life-threatening diseases. Hemogenyx is developing several distinct and complementary product candidates, as well as a platform technology that it uses as an engine for novel product development.

For more than 50 years, bone marrow transplantation has been used to save the lives of patients suffering from blood diseases. The risks of toxicity and death that are associated with bone marrow transplantation, however, have meant that the procedure is restricted to use only as a last resort. Hemogenyx's technology has the potential to enable many more patients suffering from devastating blood diseases such as leukemia and lymphoma, as well as severe autoimmune diseases such as multiple sclerosis, aplastic anemia and systemic lupus erythematosus (Lupus), to benefit from bone marrow transplantation.

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact [emailprotected] or visit http://www.rns.com.

SOURCE: Hemogenyx Pharmaceuticals PLC

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