Cerus Corporation to Participate in the Goldman Sachs 46th Annual Global Healthcare Conference 2025

On June 3, 2025 Cerus Corporation (Nasdaq: CERS) reported that members of the management team are scheduled to present at the Goldman Sachs 46th Annual Global Healthcare Conference 2025 in Miami, Florida, on Wednesday, June 11, 2025, at 8:40 a.m. Eastern Time (Press release, Cerus, JUN 3, 2025, View Source [SID1234653670]).

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A live webcast of the presentation can be accessed via the Events & Presentation section of Cerus’ Investor Relations website at ir.cerus.com. A replay of the webcast will be available on Cerus Investor Relations website shortly after the event for 30 days.

DARZALEX FASPRO® (daratumumab and hyaluronidase-fihj)-based regimen shows 95 percent progression-free survival at four years in transplant-eligible, newly diagnosed patients with multiple myeloma who achieved sustained MRD negativity

On June 3, 2025 Johnson & Johnson (NYSE: JNJ) reported data from two studies highlighting that a DARZALEX FASPRO (daratumumab and hyaluronidase-fihj)-based quadruplet regimen demonstrated deep and sustained minimal residual disease (MRD) negativity rates, and improved long-term progression-free survival (PFS) in patients with newly diagnosed multiple myeloma (NDMM), regardless of transplant status (Press release, Johnson & Johnson, JUN 3, 2025, View Source [SID1234653686]). Findings were highlighted as oral presentations of an analysis of sustained MRD in transplant-eligible patients from the Phase 3 PERSEUS study (Abstract #7501) and a subgroup analysis of transplant-ineligible patients in the Phase 3 CEPHEUS study (Abstract #7516) at the 2025 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting.

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New analysis from the Phase 3 PERSEUS study shows the addition of DARZALEX FASPRO to bortezomib, lenalidomide and dexamethasone (D-VRd), followed by an investigational maintenance regimen of DARZALEX FASPRO with lenalidomide (D-R), led to improved and deepened rates of overall and sustained MRD negativity (10-5), defined as no cancer cells detected within 100,000 bone marrow cells) for at least 24 months, compared to VRd induction and consolidation with R maintenance. More than half of patients who received the DARZALEX FASPRO-based regimen achieved sustained MRD negativity for 24 or more months and more than two-thirds of patients achieved sustained MRD-negativity at 12-months, showing 95.3 percent PFS at 48-months (95 percent confidence interval [CI], 0.3-2.3)—reinforcing the ability of DARZALEX FASPRO to delay disease progression or death.1

"The data show that D-VRd followed by an investigational D-R maintenance regimen is a highly effective treatment option for transplant-eligible patients with newly diagnosed multiple myeloma," said Philippe Moreau*, M.D., head of the Hematology Department, University Hospital Hôtel-Dieu, Nantes, France and presenting author. "The depth and durability of MRD negativity observed—paired with unprecedented progression-free survival at four years—underscore the long-term benefit the DARZALEX FASPRO-based regimen can offer patients early in their treatment journey."

At a median follow-up of 47.5 months, 24-month sustained MRD negativity rates at the 10⁻⁵ sensitivity threshold were more than double with D-VRd followed by investigational D-R maintenance (55.8 percent), compared to VRd followed by R maintenance (22.6 percent) (odds ratio [OR]=4.36; 95 percent CI, 3.15-6.05; P<0.0001). Similarly, MRD negativity at 12 months was higher with D-VRd and D-R maintenance at 64.8 percent compared to VRd and R maintenance (29.7 percent) (OR=4.42, 95 percent CI, 3.22-6.08, P<0.0001).1

Additional data from Phase 3 CEPHEUS study explore the benefits of DARZALEX FASPRO in transplant-ineligible patients across cytogenetic risk status

The post-hoc analysis of the Phase 3 CEPHEUS study focused exclusively on transplant-ineligible patients, reinforcing that adding DARZALEX FASPRO to VRd significantly deepens response and prolongs PFS compared to VRd alone, even in patients who are older and considered frail by the Myeloma Geriatric Assessment score.

At a median follow-up of 58.7 months, patients receiving D-VRd achieved markedly higher overall MRD negativity rates at the 10⁻⁵ sensitivity threshold with 60.4 percent versus 39.3 percent with VRd (OR 2.37; 95 percent CI, 1.47–3.80; P=0.0004). Furthermore, treatment with D-VRd resulted in high MRD-negativity rates at the 10⁻⁶ threshold (no cancer cells detected within 1,000,000 bone marrow cells) with 45.8 percent compared to 26.9 percent with VRd (OR 2.28; 95 percent CI, 1.40–3.73; P=0.0010). These deeper responses translated into improved long-term outcomes, with 69 percent of patients remaining progression free at 54-months when treated with D-VRd versus 48.0 percent with VRd (hazard ratio [HR] 0.51; 95 percent CI, 0.35–0.74). Overall survival (OS) numerically favored D-VRd (HR 0.66; 95 percent CI, 0.42–1.03), with an even greater benefit observed after censoring for COVID-19-related deaths (HR 0.55; 95 percent CI, 0.34–0.90).2

Additional data presented at ASCO (Free ASCO Whitepaper) included a subgroup analysis of the CEPHEUS trial for both transplant-ineligible and deferred NDMM patients who were considered high-risk for cytogenetic abnormalities (Abstract #7529). At a median follow-up of 58.7 months, overall MRD negativity rate was improved for patients with standard risk in D-VRd versus VRd. Rates by treatment arm in patients at high risk were comparable.3

"Across multiple studies, the growing body of data on DARZALEX-based regimens indicates impressive, deep responses and meaningful progression-free survival in patients with newly diagnosed multiple myeloma, including high risk," Jordan Schecter, MD, Vice President, Disease Area Leader, Multiple Myeloma, Johnson & Johnson Innovative Medicine. "These consistent results across patient populations, regardless of transplant eligibility, reinforce the role of DARZALEX FASPRO as a cornerstone of frontline therapy."

In the PERSEUS and CEPHEUS studies, the safety profiles were consistent with the known safety profile for DARZALEX FASPRO.

About the PERSEUS Study
The PERSEUS study is being conducted in collaboration with the European Myeloma Network as the sponsor. PERSEUS is an ongoing, randomized, open-label, Phase 3 study comparing the efficacy and safety of D-VRd during induction and consolidation versus VRd during induction and consolidation in patients with NDMM eligible for ASCT. Following consolidation, patients received an investigational treatment regimen for maintenance that included DARZALEX FASPRO in combination with lenalidomide or lenalidomide alone. The trial was not designed to isolate the effect of DARZALEX FASPRO in the maintenance phase of treatment. The efficacy of DARZALEX FASPRO in combination with lenalidomide for maintenance has not been established. The primary endpoint is PFS, and secondary endpoints include overall CR or better rate, and overall MRD-negativity (in patients with CR or better). The median age is 61.0 (range, 32-70) years for patients in the D-VRd arm and 59.0 (range, 31-70) years for patients in the VRd arm.2 The study is being conducted in 14 countries in Europe and Australia.

About the CEPHEUS Study
CEPHEUS (NCT03652064) is an ongoing, multicenter, randomized, open-label, Phase 3 study comparing the efficacy and safety of D-VRd versus VRd in patients with newly diagnosed multiple myeloma who are transplant-ineligible or for whom transplant is not intended as initial therapy. Primary endpoint is overall MRD negativity rate at 10-5 sensitivity threshold. Secondary endpoints include CR or better rates, PFS, sustained MRD negativity rates for ≥12 months, MRD-negative rate at one year, overall response rates, time to and duration of response, PFS on next line of therapy, overall survival and safety. The trial has enrolled 396 patients in 13 countries.

About Multiple Myeloma
Multiple myeloma (MM) is a blood cancer that affects a type of white blood cell called plasma cells, which are found in the bone marrow.4 In multiple myeloma, these malignant plasma cells proliferate and replace normal cells in the bone marrow.5 Multiple myeloma is the second most common blood cancer worldwide and remains an incurable disease.6 In 2024, it is estimated that more than 35,000 people will be diagnosed with multiple myeloma in the U.S. and more than 12,000 will die from the disease.7 People with multiple myeloma have a 5-year survival rate of 59.8 percent. While some people diagnosed with multiple myeloma initially have no symptoms, most patients are diagnosed due to symptoms that can include bone fracture or pain, low red blood cell counts, tiredness, high calcium levels, kidney problems or infections.8,9

About DARZALEX FASPRO and DARZALEX
DARZALEX FASPRO (daratumumab and hyaluronidase-fihj) received U.S. FDA approval in May 2020 and is approved for nine indications in MM, four of which are for frontline treatment in newly diagnosed patients who are transplant-eligible or ineligible.3,6 It is the only subcutaneous CD38-directed antibody approved to treat patients with MM. DARZALEX FASPRO is co-formulated with recombinant human hyaluronidase PH20, Halozyme’s ENHANZE drug delivery technology.

DARZALEX (daratumumab) received U.S. FDA approval in November 2015 and is approved in eight indications, three of which are in the frontline setting, including newly diagnosed patients who are transplant-eligible and ineligible.9

DARZALEX is the first CD38-directed antibody approved to treat MM.9 DARZALEX-based regimens have been used in the treatment of more than 618,000 patients worldwide.

In August 2012, Janssen Biotech, Inc. and Genmab A/S entered a worldwide agreement, which granted Janssen an exclusive license to develop, manufacture and commercialize daratumumab. 

For more information, visit View Source;

DARZALEX FASPRO INDICATIONS AND IMPORTANT SAFETY INFORMATION   

INDICATIONS 
DARZALEX FASPRO (daratumumab and hyaluronidase-fihj) is indicated for the treatment of adult patients with MM: 

In combination with bortezomib, lenalidomide, and dexamethasone for induction and consolidation in newly diagnosed patients who are eligible for autologous stem cell transplant
In combination with bortezomib, melphalan, and prednisone in newly diagnosed patients who are ineligible for autologous stem cell transplant
In combination with lenalidomide and dexamethasone in newly diagnosed patients who are ineligible for autologous stem cell transplant and in patients with relapsed or refractory MM who have received at least one prior therapy
In combination with bortezomib, thalidomide, and dexamethasone in newly diagnosed patients who are eligible for autologous stem cell transplant
In combination with pomalidomide and dexamethasone in patients who have received at least one prior line of therapy including lenalidomide and a proteasome inhibitor (PI)
In combination with carfilzomib and dexamethasone in patients with relapsed or refractory MM who have received one to three prior lines of therapy
In combination with bortezomib and dexamethasone in patients who have received at least one prior therapy
As monotherapy in patients who have received at least three prior lines of therapy including a PI and an immunomodulatory agent or who are double refractory to a PI and an immunomodulatory agent
IMPORTANT SAFETY INFORMATION  

CONTRAINDICATIONS    
DARZALEX FASPRO is contraindicated in patients with a history of severe hypersensitivity to daratumumab, hyaluronidase, or any of the components of the formulation.    

WARNINGS AND PRECAUTIONS    

Hypersensitivity and Other Administration Reactions    
Both systemic administration-related reactions, including severe or life-threatening reactions, and local injection-site reactions can occur with DARZALEX FASPRO. Fatal reactions have been reported with daratumumab-containing products, including DARZALEX FASPRO.   

Systemic Reactions    
In a pooled safety population of 1249 patients with MM (N=1056) or light chain (AL) amyloidosis (N=193) who received DARZALEX FASPRO as monotherapy or in combination, 7 percent of patients experienced a systemic administration-related reaction (Grade 2: 3.2 percent, Grade 3: 0.7 percent, Grade 4: 0.1 percent). Systemic administration-related reactions occurred in 7 of patients with the first injection, 0.2 percent with the second injection, and cumulatively 1 percent with subsequent injections. The median time to onset was 2.9 hours (range: 5 minutes to 3.5 days). Of the 165 systemic administration-related reactions that occurred in 93 patients, 144 (87 percent) occurred on the day of DARZALEX FASPRO administration. Delayed systemic administration-related reactions have occurred in 1 percent of the patients. 

Severe reactions included hypoxia, dyspnea, hypertension, tachycardia, and ocular adverse reactions, including choroidal effusion, acute myopia, and acute angle closure glaucoma. Other signs and symptoms of systemic administration-related reactions may include respiratory symptoms, such as bronchospasm, nasal congestion, cough, throat irritation, allergic rhinitis, and wheezing, as well as anaphylactic reaction, pyrexia, chest pain, pruritus, chills, vomiting, nausea, hypotension, and blurred vision.    

Pre-medicate patients with histamine-1 receptor antagonist, acetaminophen, and corticosteroids. Monitor patients for systemic administration-related reactions, especially following the first and second injections. For anaphylactic reaction or life-threatening (Grade 4) administration-related reactions, immediately and permanently discontinue DARZALEX FASPRO. Consider administering corticosteroids and other medications after the administration of DARZALEX FASPRO depending on dosing regimen and medical history to minimize the risk of delayed (defined as occurring the day after administration) systemic administration-related reactions.    

Ocular adverse reactions, including acute myopia and narrowing of the anterior chamber angle due to ciliochoroidal effusions with potential for increased intraocular pressure or glaucoma, have occurred with daratumumab-containing products. If ocular symptoms occur, interrupt DARZALEX FASPRO and seek immediate ophthalmologic evaluation prior to restarting DARZALEX FASPRO.    

Local Reactions    
In this pooled safety population, injection-site reactions occurred in 7 percent of patients, including Grade 2 reactions in 0.8 percent. The most frequent (>1 percent) injection-site reaction was injection-site erythema. These local reactions occurred a median of 5 minutes (range: 0 minutes to 6.5 days) after starting administration of DARZALEX FASPRO. Monitor for local reactions and consider symptomatic management.    

Neutropenia    
Daratumumab may increase neutropenia induced by background therapy. Monitor complete blood cell counts periodically during treatment according to manufacturer’s prescribing information for background therapies. Monitor patients with neutropenia for signs of infection. Consider withholding DARZALEX FASPRO until recovery of neutrophils. In lower body weight patients receiving DARZALEX FASPRO, higher rates of Grade 3-4 neutropenia were observed.    

Thrombocytopenia    
Daratumumab may increase thrombocytopenia induced by background therapy. Monitor complete blood cell counts periodically during treatment according to manufacturer’s prescribing information for background therapies. Consider withholding DARZALEX FASPRO until recovery of platelets.    

Embryo-Fetal Toxicity    
Based on the mechanism of action, DARZALEX FASPRO can cause fetal harm when administered to a pregnant woman. DARZALEX FASPRO may cause depletion of fetal immune cells and decreased bone density. Advise pregnant women of the potential risk to a fetus. Advise females with reproductive potential to use effective contraception during treatment with DARZALEX FASPRO and for 3 months after the last dose.    

The combination of DARZALEX FASPRO with lenalidomide, thalidomide, or pomalidomide is contraindicated in pregnant women because lenalidomide, thalidomide, and pomalidomide may cause birth defects and death of the unborn child. Refer to the lenalidomide, thalidomide, or pomalidomide prescribing information on use during pregnancy.    

Interference With Serological Testing    
Daratumumab binds to CD38 on red blood cells (RBCs) and results in a positive indirect antiglobulin test (indirect Coombs test). Daratumumab-mediated positive indirect antiglobulin test may persist for up to 6 months after the last daratumumab administration. Daratumumab bound to RBCs masks detection of antibodies to minor antigens in the patient’s serum. The determination of a patient’s ABO and Rh blood type are not impacted.    

Notify blood transfusion centers of this interference with serological testing and inform blood banks that a patient has received DARZALEX FASPRO. Type and screen patients prior to starting DARZALEX FASPRO.    

Interference With Determination of Complete Response    
Daratumumab is a human immunoglobulin G (IgG) kappa monoclonal antibody that can be detected on both the serum protein electrophoresis (SPE) and immunofixation (IFE) assays used for the clinical monitoring of endogenous M-protein. This interference can impact the determination of complete response and of disease progression in some DARZALEX FASPRO-treated patients with IgG kappa myeloma protein.    

ADVERSE REACTIONS    

In MM, the most common adverse reaction (≥20 percent) with DARZALEX FASPRO monotherapy is upper respiratory tract infection. The most common adverse reactions with combination therapy (≥20 percent for any combination) include fatigue, nausea, diarrhea, dyspnea, insomnia, headache, pyrexia, cough, muscle spasms, back pain, vomiting, hypertension, upper respiratory tract infection, peripheral sensory neuropathy, constipation, pneumonia, and peripheral edema.    

The most common hematology laboratory abnormalities (≥40 percent) with DARZALEX FASPRO are decreased leukocytes, decreased lymphocytes, decreased neutrophils, decreased platelets, and decreased hemoglobin.    

Please click here to see the full Prescribing Information for DARZALEX FASPRO.    

DARZALEX INDICATIONS AND IMPORTANT SAFETY INFORMATION

INDICATIONS  

DARZALEX (daratumumab) is indicated for the treatment of adult patients with MM:  

In combination with bortezomib, melphalan, and prednisone in newly diagnosed patients who are ineligible for autologous stem cell transplant
In combination with lenalidomide and dexamethasone in newly diagnosed patients who are ineligible for autologous stem cell transplant and in patients with relapsed or refractory MM who have received at least one prior therapy
In combination with bortezomib, thalidomide, and dexamethasone in newly diagnosed patients who are eligible for autologous stem cell transplant
In combination with pomalidomide and dexamethasone in patients who have received at least one prior line of therapy including lenalidomide and a proteasome inhibitor
In combination with carfilzomib and dexamethasone in patients with relapsed or refractory MM who have received one to three prior lines of therapy
In combination with bortezomib and dexamethasone in patients who have received at least one prior therapy
As monotherapy in patients who have received at least three prior lines of therapy including a proteasome inhibitor (PI) and an immunomodulatory agent or who are double-refractory to a PI and an immunomodulatory agent
CONTRAINDICATIONS

DARZALEX is contraindicated in patients with a history of severe hypersensitivity (eg, anaphylactic reactions) to daratumumab or any of the components of the formulation.  

WARNINGS AND PRECAUTIONS  

Infusion-Related Reactions  

DARZALEX can cause severe and/or serious infusion-related reactions including anaphylactic reactions. These reactions can be life-threatening, and fatal outcomes have been reported. In clinical trials (monotherapy and combination: N=2066), infusion-related reactions occurred in 37 percent of patients with the Week 1 (16 mg/kg) infusion, 2 percent with the Week 2 infusion, and cumulatively 6 percent with subsequent infusions. Less than 1 percent of patients had a Grade 3/4 infusion-related reaction at Week 2 or subsequent infusions. The median time to onset was 1.5 hours (range: 0 to 73 hours). Nearly all reactions occurred during infusion or within 4 hours of completing DARZALEX. Severe reactions have occurred, including bronchospasm, hypoxia, dyspnea, hypertension, tachycardia, headache, laryngeal edema, pulmonary edema, and ocular adverse reactions, including choroidal effusion, acute myopia, and acute angle closure glaucoma. Signs and symptoms may include respiratory symptoms, such as nasal congestion, cough, throat irritation, as well as chills, vomiting, and nausea. Less common signs and symptoms were wheezing, allergic rhinitis, pyrexia, chest discomfort, pruritus, hypotension and blurred vision.

When DARZALEX dosing was interrupted in the setting of ASCT (CASSIOPEIA) for a median of 3.75 months (range: 2.4 to 6.9 months), upon re-initiation of DARZALEX, the incidence of infusion-related reactions was 11 percent for the first infusion following ASCT. Infusion-related reactions occurring at re-initiation of DARZALEX following ASCT were consistent in terms of symptoms and severity (Grade 3 or 4: <1 percent) with those reported in previous studies at Week 2 or subsequent infusions. In EQUULEUS, patients receiving combination treatment (n=97) were administered the first 16 mg/kg dose at Week 1 split over two days, ie, 8 mg/kg on Day 1 and Day 2, respectively. The incidence of any grade infusion-related reactions was 42 percent, with 36 percent of patients experiencing infusion-related reactions on Day 1 of Week 1, 4 percent on Day 2 of Week 1, and 8 percent with subsequent infusions.

Pre-medicate patients with antihistamines, antipyretics, and corticosteroids.

Frequently monitor patients during the entire infusion. Interrupt DARZALEX infusion for reactions of any severity and institute medical management as needed. Permanently discontinue DARZALEX therapy if an anaphylactic reaction or life-threatening (Grade 4) reaction occurs and institute appropriate emergency care. For patients with Grade 1, 2, or 3 reactions, reduce the infusion rate when re-starting the infusion.

To reduce the risk of delayed infusion-related reactions, administer oral corticosteroids to all patients following DARZALEX infusions. Patients with a history of chronic obstructive pulmonary disease may require additional post-infusion medications to manage respiratory complications. Consider prescribing short- and long-acting bronchodilators and inhaled corticosteroids for patients with chronic obstructive pulmonary disease.

Ocular adverse reactions, including acute myopia and narrowing of the anterior chamber angle due to ciliochoroidal effusions with potential for increased intraocular pressure or glaucoma, have occurred with DARZALEX infusion. If ocular symptoms occur, interrupt DARZALEX infusion and seek immediate ophthalmologic evaluation prior to restarting DARZALEX.

Interference With Serological Testing  

Daratumumab binds to CD38 on red blood cells (RBCs) and results in a positive indirect antiglobulin test (indirect Coombs test). Daratumumab-mediated positive indirect antiglobulin test may persist for up to 6 months after the last daratumumab infusion. Daratumumab bound to RBCs masks detection of antibodies to minor antigens in the patient’s serum. The determination of a patient’s ABO and Rh blood type is not impacted. Notify blood transfusion centers of this interference with serological testing and inform blood banks that a patient has received DARZALEX. Type and screen patients prior to starting DARZALEX.

Neutropenia and Thrombocytopenia  

DARZALEX may increase neutropenia and thrombocytopenia induced by background therapy. Monitor complete blood cell counts periodically during treatment according to manufacturer’s prescribing information for background therapies. Monitor patients with neutropenia for signs of infection. Consider withholding DARZALEX until recovery of neutrophils or for recovery of platelets.

Interference With Determination of Complete Response  

Daratumumab is a human immunoglobulin G (IgG) kappa monoclonal antibody that can be detected on both the serum protein electrophoresis (SPE) and immunofixation (IFE) assays used for the clinical monitoring of endogenous M-protein. This interference can impact the determination of complete response and of disease progression in some patients with IgG kappa myeloma protein.

Embryo-Fetal Toxicity  

Based on the mechanism of action, DARZALEX can cause fetal harm when administered to a pregnant woman. DARZALEX may cause depletion of fetal immune cells and decreased bone density. Advise pregnant women of the potential risk to a fetus. Advise females with reproductive potential to use effective contraception during treatment with DARZALEX and for 3 months after the last dose.

The combination of DARZALEX with lenalidomide, pomalidomide, or thalidomide is contraindicated in pregnant women because lenalidomide, pomalidomide, and thalidomide may cause birth defects and death of the unborn child. Refer to the lenalidomide, pomalidomide, or thalidomide prescribing information on use during pregnancy.

ADVERSE REACTIONS  

The most frequently reported adverse reactions (incidence ≥20 percent) were: upper respiratory infection, neutropenia, infusion related reactions, thrombocytopenia, diarrhea, constipation, anemia, peripheral sensory neuropathy, fatigue, peripheral edema, nausea, cough, pyrexia, dyspnea, and asthenia. The most common hematologic laboratory abnormalities (≥40 percent) with DARZALEX are: neutropenia, lymphopenia, thrombocytopenia, leukopenia, and anemia.

Experimental Drug Development Centre Announces the Presentation of Updated Data from the Phase 1 Study of Antibody-Drug Conjugate EBC-129 at the 2025 Annual Meeting of the American Society of Clinical Oncology (ASCO)

On June 3, 2025 The Experimental Drug Development Centre (EDDC), Singapore’s national platform for drug discovery and development, reported the presentation of updated clinical data for the ongoing Phase 1 trial for EBC-129 at the 2025 Annual Meeting of the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) in Chicago (Press release, Experimental Drug Development Centre, JUN 3, 2025, View Source [SID1234653702]).

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EBC-129 is a first-in-class antibody drug conjugate (ADC) targeting a novel, tumour-specific N256-glycosylated epitope on CEACAM5 and CEACAM6. The updated findings showed promising efficacy data from 21 heavily pre-treated pancreatic ductal adenocarcinoma (PDAC) patients across the dose escalation and the dose expansion portions of the Phase 1 study. Patients received EBC-129 at doses between 1.8 and 2.2 mg/kg, given once every 3 weeks. 17 out of 21 patients (81%) of the patients had received prior treatment with taxanes. 82% of patients had tumours which expressed the EBC-129 antigen at ≥1% at 3+ intensity and were therefore considered treatable. The overall response rates (ORRs) were 25% and 20%, with disease control rates (DCRs) of 87.5% and 63.6% and progression-free survival (PFS) of 19 and 12 weeks for 1.8 mg/kg and 2.2 mg/kg, respectively.

"Pancreatic adenocarcinoma remains one of the most challenging cancers to treat, particularly in the metastatic setting where resistance to standard therapies is common. The clinical signals observed with EBC-129 in refractory pancreatic adenocarcinoma, including tolerability, prolonged disease control and a confirmed response in a heavily pre-treated patient, are encouraging and clinically meaningful. Continued prioritisation of biology-guided trials targeting EBC-129 will be key to sustaining momentum in this important therapeutic effort," said Assistant Professor Robert W. Lentz, MD, Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz School of Medicine.

This presentation follows the recent Fast Track Designation granted by the U.S. FDA for EBC-129 in the treatment of PDAC patients. This designation supports EDDC’s efforts to accelerate the advancement of the programme through increased regulatory engagement and the potential for expedited review pathways.

Other Results to Date

The dose escalation study of the Phase 1 trial was open to all patients, while the ongoing dose expansion study comprises of three cohorts in PDAC, gastroesophageal adenocarcinoma (GEA) and tumour-agnostic patients with other immunohistochemistry (IHC)-positive solid tumours. Recruitment for the GEA and IHC-positive cohorts is still ongoing.

EBC-129 showed a manageable safety profile in the 58 patients treated so far, with uncomplicated neutropenia and infusion-related reactions as the main treatment-related adverse events (TRAEs) observed.

The EBC-129 antigen was also found to be highly expressed, with 52% to 100% of tumour tissues assessed during the trial showing moderate to high expression levels of ≥20% at 2+ and/or 3+. This included samples from gastroesophageal, appendiceal, colorectal and lung cancer patients, making EBC-129 a potentially viable treatment option for these cancers.

"We have seen encouraging signs of efficacy of EBC-129 as a single-agent therapy, even in heavily pre-treated patients with metastatic pancreatic cancer. This, combined with the observed safety profile, underscores the promise of EBC-129 as a possible treatment option for PDAC patients. As a first-in-class ADC that targets both CEACAM5 and CEACAM6, EBC-129 has also shown potential against a range of other solid tumours, and we look forward to expanding clinical evaluations with the ongoing dose expansion cohorts and accelerating the development of EBC-129 to address critical unmet needs in cancer," said Professor Damian O’Connell, CEO of EDDC.

About EBC-129

EBC-129 is an ADC that targets a tumour-specific N256-glycosylation site conserved on CEACAM5 and CEACAM6. CEACAM5 and CEACAM6 are known to have functional importance in tumour formation, migration and metastasis. In the ongoing trial, the tumour-specific marker is found to be widely expressed in multiple solid tumour types, including gastric, oesophageal, pancreatic, lung, colorectal, and appendiceal cancers, based on an analytically validated immunohistochemistry (IHC) assay. The payload used in EBC-129 is monomethyl auristatin E (MMAE), which has been extensively tested and approved for clinical use in other marketed ADCs, and has demonstrated synergy with PD-1 inhibitors. The ongoing Phase 1 trial of EBC-129 is assessing the safety and tolerability of EBC-129 as a single agent and in combination with pembrolizumab in patients with advanced solid tumours. Enrolment for the PDAC cohort in the Phase 1 dose expansion study is now complete, while recruitment continues for the gastroesophageal adenocarcinoma (GEA) and IHC-positive cohorts.

For information about the trial, please visit Clinicaltrial.gov, trial identifier NCT05701527.

Sanofi to acquire Blueprint Medicines, expanding portfolio in rare immunological disease and adding early-stage pipeline in immunology

On June 2, 2025 Sanofi and Blueprint Medicines Corporation (Blueprint), a US-based, publicly traded biopharmaceutical company specializing in systemic mastocytosis (SM), a rare immunological disease, and other KIT-driven diseases, reported to have entered into an agreement under which Sanofi will acquire Blueprint (Press release, Blueprint Medicines, JUN 2, 2025, View Source [SID1234653560]).

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The acquisition includes a rare immunology disease medicine, Ayvakit/Ayvakyt (avapritinib), approved in the US and the EU, and a promising advanced and early-stage immunology pipeline. Furthermore, Blueprint’s established presence among allergists, dermatologists, and immunologists is expected to enhance Sanofi’s growing immunology pipeline.

Ayvakit/Ayvakyt is the only approved medicine for advanced and indolent systemic mastocytosis (ASM & ISM), a rare immunology disease, which is characterized by the accumulation and activation of aberrant mast cells in bone marrow, skin, the gastrointestinal tract, and other organs. The acquisition will also bring elenestinib, a next-generation medicine for SM, as well as BLU-808, a highly selective and potent oral wild-type KIT inhibitor that has the potential to treat a broad range of diseases in immunology.

Under the terms of the acquisition, Sanofi will pay $129.00 per share in cash at closing, representing an equity value of approximately $9.1 billion. Blueprint shareholders also will receive one non-tradeable contingent value right (CVR) which will entitle the holder to receive two potential milestone payments of $2 and $4 per CVR for the achievement, respectively, of future development and regulatory milestones for BLU-808. The total equity value of the transaction, including potential CVR payments, represents approximately $9.5 billion on a fully diluted basis.

Paul Hudson
CEO, Sanofi
"The proposed acquisition of Blueprint Medicines represents a strategic step forward in our rare and immunology portfolios. It enhances our pipeline and accelerates our transformation into the world’s leading immunology company. This acquisition is fully aligned with our strategic intent to strengthen our existing therapeutic areas, to bring relevant and differentiated medicines to patients and to secure attractive returns to our shareholders. It complements recent acquisitions of early-stage medicines that remain our main field of interest. Sanofi still retains a sizeable capacity for further acquisitions. We are excited to welcome Blueprint’s talented people and we look forward to chasing the miracles of science together. This makes sense for science, for both companies, for healthcare professionals, and – most of all – for patients."

Kate Haviland
CEO, Blueprint Medicines
"Since our founding, Blueprint Medicines has worked at the intersection of scientific innovation and operational excellence. I’m incredibly proud of the medical innovations our people have created and delivered to patients. We have translated our unique scientific understanding of mast cell biology into a portfolio of important therapies including Ayvakit – the first and only medicine approved to treat the root cause of systemic mastocytosis – and worked collaboratively with communities to improve standards of care and patient outcomes. With this agreement, we begin our next chapter with Sanofi, whose exceptional leadership in rare disease and immunology and proven ability to solve medical challenges at scale stand to accelerate our joint mission to bring life-changing medicines to many more patients around the world."

Mast cells play an important role in immune responses and are typically found in tissues that encounter the external environment, such as the skin, lungs, and gastrointestinal tract. Upon activation, mast cells release pro-inflammatory molecules such as histamines and proteases. Systemic mastocytosis is a rare immunologic disorder that can lead to a range of debilitating symptoms across multiple organ systems and a significant impact on patients’ quality of life. The symptoms that patients with SM experience can include anaphylaxis, bone disease, gastrointestinal distress and skin lesions. ISM represents the majority of SM cases.

Ayvakit achieved net revenues of $479 million in 2024 and nearly $150 million in Q1 2025, representing year-on-year growth of more than 60 percent over Q1 2024. The oral medicine is a potent and selective inhibitor of activated KIT and PDGFRA mutant kinases. In certain diseases, mutations in KIT and PDGFRA force protein kinases into an increasingly active state and Ayvakit/Ayvakyt is designed to bind and inhibit these proteins.

Elenestinib is a next-generation, potent and highly selective KIT D816V inhibitor with limited central nervous system penetration. The oral investigational ISM medication is the subject of HARBOR, a phase 2/3 study (clinical study identifier: NCT04910685). The ongoing, randomized, double-blind, placebo-controlled study is designed to evaluate the efficacy and safety of elenestinib plus symptom-directed therapy in patients with ISM and smoldering SM.

BLU-808 is an investigational oral, highly potent and selective wild-type KIT inhibitor that was developed leveraging Blueprint’s expertise in mast cell biology. Wild-type KIT plays a central role in mast cell activation, which is implicated in a broad range of inflammatory diseases.

Transaction terms and financial considerations
Under the terms of the merger agreement, Sanofi will commence a cash tender offer to acquire all outstanding shares of Blueprint for $129.00 per share in cash, reflecting a total equity value of approximately $9.1 billion. In addition, Blueprint’s shareholders will receive one non-tradeable CVR per Blueprint share with two potential milestone payments as follows:

$2 per share, conditioned upon the achievement of a clinical development milestone for BLU-808, and
$4 per share, conditioned upon the achievement of a regulatory milestone for BLU-808.
The upfront offer price represents a premium of approximately 27% over the closing price of Blueprint on May 30, 2025 and a premium of approximately 34% over the 30 trading days volume weighted average price (VWAP) of Blueprint as of May 30, 2025. Together with the CVR, the premium is approximately 33% over the closing price on May 30, 2025 and approximately 40% over the 30 trading days VWAP.

The consummation of the tender offer is subject to customary closing conditions, including the tender of a number of shares of Blueprint common stock representing at least a majority of the outstanding shares of Blueprint common stock, the receipt of required regulatory approvals, and other customary conditions.

If the tender offer is successfully completed, a wholly owned subsidiary of Sanofi will merge with and into Blueprint and all of the outstanding Blueprint shares that are not tendered in the tender offer will be converted into the right to receive the same $129.00 per share in cash and one CVR per share offered to Blueprint shareholders in the tender offer. Sanofi plans to finance the transaction with a combination of cash on hand and proceeds from new debt. The tender offer is not subject to any financing condition. Subject to the satisfaction or waiver of customary closing conditions, Sanofi currently expects to complete the acquisition in the third quarter of 2025. The acquisition will not have a significant impact on Sanofi’s financial guidance for 2025. It is immediately accretive to gross margin and accretive to business operating income and EPS after 2026.

Conference call for investors and analysts
Sanofi will host a conference call for investors and analysts at 08:30 CEST today. A presentation will be available for download from the Investor Relations section of sanofi.com before the conference call starts.

The call will be held on Zoom with the following access details:
View Source
Webinar ID: 979 9146 5119
Passcode: 801394

About Ayvakit
Ayvakit (avapritinib) is the first and only medicine approved by the US Food and Drug Administration (FDA) to treat the root cause of SM. It was FDA approved for the treatment of advanced SM in June 2021 and indolent SM in May 2023. It now is indicated in adults with ISM, adults with advanced SM, including aggressive SM (ASM), SM with an associated hematological neoplasm (SM-AHN) and mast cell leukemia (MCL), and adults with unresectable or metastatic gastrointestinal stromal tumor (GIST) harboring a PDGFRA exon 18 mutation, including PDGFRA D842V mutations. The medicine is approved in the EU as Ayvakyt for the treatment of adults with ISM with moderate to severe symptoms inadequately controlled on symptomatic treatment, adults with ASM, SM-AHN or MCL, after at least one systemic therapy, and adults with unresectable or metastatic GIST harboring the PDGFRA D842V mutation. Globally, the medicine is approved for one or more indications in 16 countries, including China where it is marketed by CStone Pharmaceuticals, paying tiered percentage royalties on sales.

Genmab Announces Investigational Rinatabart Sesutecan (Rina-S®) Demonstrates Encouraging Anti-Tumor Activity in Heavily Pretreated Patients with Advanced Endometrial Cancer in Phase 1/2 RAINFOL™-01 Trial

On June 2, 2025 Genmab A/S (Nasdaq: GMAB) reported new data from cohort B2 of the Phase 1/2 RAINFOL-01 trial evaluating rinatabart sesutecan (Rina-S), an investigational folate receptor alpha (FRα)-targeted, TOPO1-inhibitor antibody-drug conjugate (ADC). The study showed that with a median on-study follow-up of 7.7 months, treatment with Rina-S 100 mg/m2 every 3 weeks (Q3W) resulted in a 50.0 percent confirmed objective response rate (ORR), including two complete responses (CR), in heavily pre-treated advanced endometrial cancer (EC) patients who experienced disease progression on or after treatment with platinum-based chemotherapy and an immune checkpoint inhibitor (Press release, Genmab, JUN 2, 2025, View Source [SID1234653606]). The median duration of response (mDOR) was not reached. These data are from the endometrial cancer monotherapy dose expansion B2 cohort of the multi-part RAINFOL-01 trial evaluating the safety and efficacy of Rina-S in solid tumors and were presented at the 2025 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting in Chicago, Illinois.

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"Advanced stage and recurrent endometrial cancer often lead to resistance to standard of care options. When this occurs, prognosis worsens and treatment options become increasingly limited, leaving patients and clinicians to navigate difficult decisions," said Ira Winer, M.D., Ph.D., FACOG, study investigator and Professor, Division of Gynecologic Oncology and Phase I Developmental Therapeutics at the Karmanos Cancer Institute, Wayne State University. "These Phase 1/2 results demonstrate encouraging data with Rina-S in this patient population and support its further development as a potential therapy for patients with advanced and recurrent endometrial cancer."

The B2 cohort of the Phase 1/2 RAINFOL-01 study (NCT05579366) is a dose expansion cohort evaluating the efficacy and safety of Rina-S in patients with advanced or recurrent endometrial cancer. In the study, 64 patients with heavily pretreated advanced or recurrent endometrial cancer whose disease had progressed on or after an anti-PD-(L)1 and platinum-based chemotherapy were enrolled and treated with Rina-S. Patients were administered either 100 mg/m2 (n=22) or 120 mg/m2 (n=42) of Rina-S. In the 100 mg/m2 cohort, the confirmed ORR was 50.0 percent, including two CRs. Anti-tumor activity was also observed in patients treated with Rina-S 120 mg/m2 Q3W, which resulted in 47.1 percent confirmed ORR. The mDoR was not reached after a median follow-up of 7.7 months in the 100 mg/m2 cohort and a median follow-up of 9.8 months in the 120 mg/m2 cohort. Median age was 67.0 years and 69.5 years in the 100 mg/m2 and 120 mg/m2 cohorts, respectively. Study participants were previously treated with a median of three lines of therapy (range 1-8).

Common treatment emergent adverse events (TEAEs; all grades) included diarrhea, shortness of breath (dyspnea), urinary tract infection, headache, constipation, decreased appetite, vomiting, fatigue and nausea. Serious TEAEs (Grade 3 or higher) occurred in 31.8 percent and 50.0 percent of patients treated with Rina-S 100 mg/m2 and 120 mg/m2, respectively. Hematologic adverse events were manageable without significant dose reduction and with low rates of treatment discontinuation. No signals of ocular toxicities, neuropathy or Interstitial Lung Disease (ILD) were observed. Ocular toxicities and ILD are often reported as adverse events associated with ADCs i,ii,iii,iv.

"Rina-S represents the kind of innovation that defines our focus at Genmab, which is to develop wholly owned, novel antibody-based medicines that have the potential to transform the treatment of cancer and address an unmet need, including for patients with advanced endometrial cancer," said Judith Klimovsky, M.D., Executive Vice President and Chief Development Officer of Genmab. "The encouraging early signals in endometrial cancer underscore our deep commitment to making a meaningful impact for women with gynecologic cancers, where treatment advances have long lagged behind the need."

About the RAINFOLTM -01 Trial
RAINFOL-01 (NCT05579366) is an open-label, multicenter Phase 1/2 study, designed to evaluate the safety and efficacy of rinatabart sesutecan (Rina-S) Q3W at various doses in solid tumors that are known to express FRα. The study consists of multiple parts including Part A monotherapy cohorts; Part B tumor-specific monotherapy dose-expansion cohorts; Part C platinum-resistant ovarian cancer (PROC) cohort; Part D combination therapy cohorts; and Part F a monotherapy endometrial cancer (EC) cohort.

About Endometrial Cancer
Endometrial cancer (EC) ranks as the second most prevalent gynecologic cancer globally, with increasing incidence and mortality ratesv,vi, highlighting the need for effective management strategies. Patients with advanced or recurrent EC have a relatively poor prognosis and treatment options are limited for those patients who have progressed following treatment with chemotherapy and immune checkpoint inhibitor. FRα is overexpressed on multiple tumors, including EC, making it a promising therapeutic target. Anti-tumor activity with Rina-S was observed across a broad range of FRα expression, and there are currently no approved FRα-targeting therapies approved for the treatment of endometrial cancer.

EC starts in the lining of the uterus, known as the endometrium.vii Patients with advanced or recurrent endometrial cancer have a high unmet need. Most (64-74 percent) patients with EC experience disease progression on immune checkpoint inhibitors (ICI) plus chemotherapy irrespective of biomarker status. Treatment options after progression on an ICI-regimen are very limited and consist of single-agent chemotherapy (ORR <16 percent and median progression-free survival [PFS] <5 months).

About Rinatabart Sesutecan (Rina-S; GEN1184)
Rinatabart sesutecan (Rina-S; GEN1184) is an investigational ADC. It is composed of a novel human monoclonal antibody directed at folate receptor α (FRα), a novel hydrophilic protease-cleavable linker, and exatecan, a topoisomerase I inhibitor payload. The clinical trial program for Rina-S continues to expand including ovarian, endometrial and other cancers of unmet need. In January 2024, the U.S. Food and Drug Administration granted Fast Track designation to Rina-S for the treatment of patients with FRα-expressing high-grade serous or endometrioid platinum-resistant ovarian cancer.

Rina-S is advancing through late-stage development, supported by a growing portfolio of Phase 2 and Phase 3 trials, including further evaluation of single-agent Rina-S in patients with advanced endometrial cancer in Part F of the ongoing RAINFOL-01 trial and in a planned Phase 3 trial.

The safety and efficacy of rinatabart sesutecan has not been established. Please visit www.clinicaltrials.gov for more information.