Sargramostim

LEXINGTON, Mass., June 20, 2025 /PRNewswire/ -- Partner Therapeutics, Inc. (PTx) today announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has recommended approval of PTx's Marketing Authorisation Application (MAA) for IMREPLYS® (sargramostim, rhu GM-CSF), the same formulation that was approved by the U.S. Food and Drug Administration (FDA) under the brand name LEUKINE® in 2018. IMPREPLYS would be indicated for treatment of patients of all ages acutely exposed to myelosuppressive doses of radiation with Haematopoietic Sub-syndrome of Acute Radiation Syndrome (H-ARS). Approval by the European Commission (EC) is expected within 67 days of the CHMP recommendation. EC approval will enable sales, including government procurement for stockpiling, of IMREPLYS in all European Union (EU) member states, as well as Norway, Iceland, and Liechtenstein. "We are grateful to the EMA for their support leading to this approval recommendation for IMREPLYS, which will enable access to the product throughout Europe for treatment of citizens for radiation injuries," said John L. McManus, President, Health Security and Critical Care of PTx. "Threats of use of tactical nuclear weapons underscore the importance of preparedness. The likelihood that initial medical treatment will occur in a severe, limited-resource environment complicates response planning and requires therapies that can be effective with minimal to no supportive care. Preparedness through stockpiling of such therapeutic solutions is intended to help reduce mortality if an event occurs that results in exposure to acute or sudden high-dose radiation. The approval recommendation from the EMA is an important step in PTx's international strategy for IMREPLYS to be available in the European market and beyond." ABOUT IMREPLYS / LEUKINE (sargramostim) Sargramostim is a human granulocyte-macrophage colony-stimulating growth factor (GM-CSF) produced by recombinant DNA technology in a yeast (S. cerevisiae) expression system. The binding to GM-CSF receptors expressed on the surface of target cells (haematopoietic progenitors and mature immune cells), initiates an intracellular signalling cascade which induces the cellular responses (i.e., division, maturation, activation). GM-CSF is a multilineage factor and, in addition to dose-dependent effects on the myelomonocytic lineage, it can promote the proliferation and maturation of megakaryocytic and erythroid progenitors. Sargramostim (LEUKINE) was approved by the US Food and Drug Administration in 2018 to increase survival in adult and pediatric patients from birth to 17 years of age acutely exposed to myelosuppressive doses of radiation (Hematopoietic Syndrome of Acute Radiation Syndrome [H-ARS]). The product is commercially available in the United States under the brand name LEUKINE. LEUKINE will continue to be accessible through a named patient program operated by Tanner Pharma Group outside of the United States, including in the European Union for named patient use outside of the H-ARS indication. In the European Union, Iceland, Norway, and Liechtenstein, upon approval by the EC, IMPREPLYS would be indicated: For treatment of patients of all ages acutely exposed to myelosuppressive doses of radiation with Haematopoietic Sub-syndrome of Acute Radiation Syndrome (H-ARS). In the United States, LEUKINE is indicated: To shorten time to neutrophil recovery and to reduce the incidence of severe and life-threatening infections and infections resulting in death following induction chemotherapy in adult patients 55 years and older with acute myeloid leukemia (AML). For the mobilization of hematopoietic progenitor cells into peripheral blood for collection by leukapheresis and autologous transplantation in adult patients. For the acceleration of myeloid reconstitution following autologous bone marrow or peripheral blood progenitor cell transplantation in adult and pediatric patients 2 years of age and older. For the acceleration of myeloid reconstitution following allogeneic bone marrow transplantation in adult and pediatric patients 2 years of age and older. For treatment of delayed neutrophil recovery or graft failure after autologous or allogeneic bone marrow transplantation in adult and pediatric patients 2 years of age and older. To increase survival in adult and pediatric patients from birth to 17 years of age acutely exposed to myelosuppressive doses of radiation (Hematopoietic Syndrome of Acute Radiation Syndrome [H-ARS]). Important Safety Information for LEUKINE (sargramostim) Contraindications Do not administer LEUKINE to patients with a history of serious allergic reaction, including anaphylaxis, to human granulocyte-macrophage colony-stimulating factor, sargramostim, yeast-derived products, or any other component of LEUKINE. Warnings and Precautions Serious hypersensitivity reactions, including anaphylactic reactions, have been reported with LEUKINE. If a serious allergic or anaphylactic reaction occurs, immediately discontinue LEUKINE therapy, and institute medical management. Discontinue LEUKINE permanently for patients with serious allergic reactions. LEUKINE can cause infusion-related reactions that may be characterized by respiratory distress, hypoxia, flushing, hypotension, syncope, and/or tachycardia. Observe closely during infusion, particularly in patients with preexisting lung disease; dose adjustment or discontinuation may be needed. LEUKINE should not be administered simultaneously with or within 24 hours preceding cytotoxic chemotherapy or radiotherapy or within 24 hours following chemotherapy. Edema, capillary leak syndrome, and pleural or pericardial effusions have been reported in patients after LEUKINE administration. LEUKINE should be used with caution in patients with preexisting fluid retention, pulmonary infiltrates, or congestive heart failure. Such patients should be monitored. Supraventricular arrhythmia has been reported in uncontrolled studies during LEUKINE administration, particularly in patients with a history of cardiac arrhythmia. Use LEUKINE with caution in patients with preexisting cardiac disease. If absolute neutrophil count (ANC) > 20,000 cells/mm3 or if white blood cell (WBC) counts > 50,000/mm3, LEUKINE administration should be interrupted, or the dose reduced by half. Monitor complete blood counts (CBC) with differential twice per week. Discontinue LEUKINE therapy if tumor progression, particularly in myeloid malignancies, is detected during LEUKINE treatment. Treatment with LEUKINE may induce neutralizing anti-drug antibodies. Use LEUKINE for the shortest duration needed. Avoid administration of solutions containing benzyl alcohol (including LEUKINE for injection reconstituted with Bacteriostatic Water for Injection, USP [0.9 % benzyl alcohol]) to neonates and low birth weight infants. Drug Interactions Avoid the concomitant use of LEUKINE and products that induce myeloproliferation. Monitor for clinical and laboratory signs of excess myeloproliferative effects. Adverse Reactions Adverse events occurring in >10% of patients receiving LEUKINE in controlled clinical trials and reported at a higher frequency than in placebo patients are: In recipients of autologous bone marrow transplantation (BMT)–asthenia, malaise, diarrhea, rash, peripheral edema, urinary tract disorder In recipients of allogeneic BMT–abdominal pain, chills, chest pain, diarrhea, nausea, vomiting, hematemesis, dysphagia, GI hemorrhage, pruritus, bone pain, arthralgia, eye hemorrhage, hypertension, tachycardia, bilirubinemia, hyperglycemia, increased creatinine, hypomagnesemia, edema, pharyngitis, epistaxis, dyspnea, insomnia, anxiety, high glucose, low albumin In patients with AML–fever, weight loss, nausea, vomiting, anorexia, skin reactions, metabolic laboratory abnormalities, edema Please see full Prescribing Information for LEUKINE at . ABOUT PARTNER THERAPEUTICS Partner Therapeutics, Inc. (PTx), an integrated biotechnology company, focuses on development and commercialization of late-stage therapeutics to improve health outcomes in treatment of cancer and other serious diseases. The company believes in delivering products and supporting medical teams with the purpose of achieving superior outcomes for patients and their families. Visit . Reference LEUKINE (sargramostim) injection - Full Prescribing Information available at: PARTNER THERAPEUTICS®, IMREPLYS®, and LEUKINE® are registered trademarks owned by Partner Therapeutics, Inc. ©2025 Partner Therapeutics, All rights reserved. SOURCE Partner Therapeutics, Inc. WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

With decades of experience in pharmaceutical development and extensive genetic medicine expertise, Doug E. Williams, Ph.D., and Murray Stewart, DM FRCP, will provide strategic guidance for CAMP4’s multiple drug development efforts CAMBRIDGE, Mass., March 18, 2025 (GLOBE NEWSWIRE) -- CAMP4 Therapeutics Corporation (“CAMP4”) (Nasdaq: CAMP), a clinical-stage biotechnology company developing a pipeline of regRNA-targeting antisense oligonucleotide (ASO) therapies to upregulate gene expression to restore healthy protein levels, today announced the appointments of Doug E. Williams, Ph.D., and Murray Stewart, DM FRCP, to the Company’s Board of Directors. “We are delighted to welcome Drs. Williams and Stewart to our Board of Directors,” said Josh Mandel-Brehm, Chief Executive Officer of CAMP4. “With their combined expertise spanning critical aspects of R&D and clinical development, we will benefit greatly from their strategic insights as we advance our lead clinical program for urea cycle disorders and our preclinical program for SYNGAP1-related disorders, while continuing to develop additional RNA-targeting medicines designed to upregulate gene expression and meaningfully address diseases where we believe modest increases in protein levels can have a tremendous impact on the lives of patients.” Dr. Williams commented, “CAMP4’s approach is opening exciting possibilities to upregulate gene expression, a long-sought-after and challenging feat in the field of genetic medicine. I look forward to working with the team to unlock the full potential of this approach and ultimately advance novel therapeutics to the clinic.” Dr. Stewart added, “I’m thrilled to join the CAMP4 team and support its mission of advancing programmable RNA therapeutics for genetic diseases where decreased protein expression drives disease pathophysiology. By pioneering new ways to restore gene expression, CAMP4 has the potential to bring life-changing therapies to patients who currently have limited or no disease-modifying treatment options.” With over 30 years in the biopharma industry, Dr. Williams has contributed to the development of several transformative drugs, including LEUKINE®, ENBREL®, ADCETRIS®, TECFIDERA®, APROLIX®, ELOCTATE®, and SPINRAZA®. He was previously President of R&D at Sana Biotechnology and the Founding President & CEO of Codiak BioSciences. Prior to Sana, Dr. Williams served as EVP of R&D at Biogen, and earlier in his career was CEO of ZymoGenetics (acquired by BMS), and held leadership roles at Seattle Genetics, Amgen, and Immunex. Over the course of his career, he has served on the Board of Directors and Advisory Boards of more than two dozen biotech companies. Dr. Stewart currently serves as a Senior Medical Advisor to several biopharma companies, and was most recently the Chief Medical Officer at Rhythm Pharmaceuticals. Prior to this position, he served as Head of R&D at Novelion Therapeutics. Before joining Novelion, he served as corporate Chief Medical Officer at GlaxoSmithKline. With extensive clinical development experience, he has led studies across all stages, from first-in-human trials to large Phase 4 cardiovascular outcome studies. Dr. Stewart has played a key role in the successful registration and launch of multiple therapies, including AVANDIA®, ARIXTRA®, TANZEUM®, and XOLREMDI®. Before transitioning to industry, he served as a Consultant Physician and Head of Clinical Services at the Diabetes Centre in Newcastle upon Tyne, UK, where his research was focused on lipid metabolism and type 2 diabetes. About CAMP4 Therapeutics CAMP4 is developing disease-modifying treatments for a broad range of rare and prevalent genetic diseases where increasing healthy protein levels may offer meaningful therapeutic benefits. Our approach allows for targeted gene upregulation by harnessing a fundamental mechanism of how genes are controlled. To increase gene expression, our therapeutic ASO drug candidates target regRNAs, which act locally on transcription factors and are the master regulators of gene expression. CAMP4’s proprietary RAP Platform™ enables the mapping of regRNAs and generation of therapeutic candidates designed to target the regRNAs associated with genes underlying haploinsufficient and recessive partial loss-of-function disorders, of which there are more than 1,200, in which a modest increase in protein expression may have the potential to be clinically meaningful. Learn more about us at www.CAMP4tx.com and follow us on LinkedIn and X. Forward-Looking Statements This press release contains forward-looking statements which involve risks, uncertainties and contingencies, many of which are beyond the control of the Company, which may cause actual results, performance, or achievements to differ materially from anticipated results, performance, or achievements. All statements other than statements of historical facts contained in this press release are forward-looking statements. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, although not all forward-looking statements contain these words. Forward-looking statements include, but are not limited to, statements concerning CAMP4’s plans, objectives, expectations and intentions. The forward-looking statements in this press release speak only as of the date of this press release and are subject to a number of known and unknown risks, uncertainties and assumptions that could cause the Company’s actual results to differ materially from those anticipated in the forward-looking statements, including, but not limited to: the Company’s limited operating history, incurrence of substantial losses since the Company’s inception and anticipation of incurring substantial and increasing losses for the foreseeable future; the Company’s need for substantial additional financing to achieve the Company’s goals; the uncertainty of clinical development, which is lengthy and expensive, and characterized by uncertain outcomes, and risks related to additional costs or delays in completing, or failing to complete, the development and commercialization of the Company’s current product candidates or any future product candidates; delays or difficulties in the enrollment and dosing of patients in clinical trials; the impact of any significant adverse events or undesirable side effects caused by the Company’s product candidates; potential competition, including from large and specialty pharmaceutical and biotechnology companies; the Company’s ability to realize the benefits of the Company’s current or future collaborations or licensing arrangements and ability to successfully consummate future partnerships; the Company’s ability to obtain regulatory approval to commercialize any product candidate in the United States or any other jurisdiction, and the risk that any such approval may be for a more narrow indication than the Company seeks; the Company’s dependence on the services of the Company’s senior management and other clinical and scientific personnel, and the Company’s ability to retain these individuals or recruit additional management or clinical and scientific personnel; the Company’s ability to grow the Company’s organization, and manage the Company’s growth and expansion of the Company’s operations; risks related to the manufacturing of the Company’s product candidates, which is complex, and the risk that the Company’s third-party manufacturers may encounter difficulties in production; the Company’s ability to obtain and maintain sufficient intellectual property protection for the Company’s product candidates or any future product candidates the Company may develop; the Company’s reliance on third parties to conduct the Company’s preclinical studies and clinical trials; the Company’s compliance with the Company’s obligations under the licenses granted to the Company by others, for the rights to develop and commercialize the Company’s product candidates; risks related to the operations of the Company’s suppliers; and other risks and uncertainties described in the section “Risk Factors” in the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2024, as well as other information we file with the Securities and Exchange Commission. The forward-looking statements in this press release are inherently uncertain and are not guarantees of future events. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified and some of which are beyond the Company’s control, you should not unduly rely on these forward-looking statements. The events and circumstances reflected in the forward-looking statements may not be achieved or occur and actual future results, levels of activity, performance and events and circumstances could differ materially from those projected in the forward-looking statements. Moreover, the Company operates in an evolving environment. New risks and uncertainties may emerge from time to time, and management cannot predict all risks and uncertainties. Investors, potential investors, and others should give careful consideration to these risks and uncertainties. Except as required by applicable law, the Company does not undertake to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise. Contacts Investor Relations:Sandya von der WeidLifeSci Advisorssvonderweid@lifesciadvisors.com Media:Jason Braco, Ph.D.LifeSci Communicationsjbraco@lifescicomms.com