Prof. Reich[/caption]Prof. Dr. med. Kristian Reich
Dermatologie, Allergologie
Psoriasis- und Neurodermitis-Trainer
Hamburg
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: The IXORA-S study compared the efficacy and safety of Taltz® (ixekizumab) and Stelara®* (ustekinumab) for the treatment of moderate-to-severe plaque psoriasis at 24 weeks.
In this study, patients were randomized to receive either Stelara (45 mg or 90 mg weight-based dosing per label) or Taltz (80 mg every two weeks followed by 80 mg every four weeks), following an initial starting dose of 160 mg. At 24 weeks, patients treated with Taltz achieved significantly higher response rates compared to patients treated with Stelara, including 83 percent of patients who achieved Psoriasis Area Severity Index (PASI) 90—the study’s primary endpoint—compared to 59 percent of patients who achieved PASI 90 after treatment with Stelara.
Results at 24 weeks also found:
• 91.2 percent of patients treated with Taltz achieved PASI 75 compared to 81.9 percent of patients treated with Stelara (p=0.015)
• 49.3 percent of patients treated with Taltz achieved PASI 100 compared to 23.5 percent of patients treated with Stelara (p=0.001)
• 86.6 percent of patients treated with Taltz achieve static Physician’s Global Assessment score (sPGA) 0 or 1 compared to 69.3 percent of patients treated with Stelara (p<0.001)
The majority of treatment-emergent adverse events were mild or moderate. There were no statistically significant differences between treatment groups in overall treatment-emergent adverse events. The safety profile for Taltz was consistent with previous clinical trials.
Dr. Brinda Emu[/caption]
Brinda Emu MD
Assistant Professor of Medicine (Infectious Diseases
Yale University
New Haven, CT
MedicalResearch.com: What is the background for this study?
Response: Ibalizumab is a fully humanized monoclonal antibody that targets the CD4 receptor. This Phase III registrational study enrolled individuals with HIV infection that harbor high levels of multi-drug resistance, with limited treatment options. At IDWeek in October, 2016, data was presented that demonstrated patients experienced a significant decrease in viral load after receiving a single loading dose of ibalizumab 2,000 mg intravenously (IV) in addition to their failing antiretroviral therapies (ART) (or no therapy). Seven days after this loading dose, 83% of patients achieved a ≥ 0.5 log10 decrease from baseline compared with 3% during the seven-day control period .These results were statistically significant (p<0.0001).
At CROI, additional data on the Week 24 results from this study are now presented.
Dr. Michael Heinrich[/caption]
Michael C. Heinrich, MD
Professor of Medicine and Cell and Developmental Biology
Oregon Health & Sciences University
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Prior to 2000, there were no effective medical treatments for advanced GI stromal tumor and patients faced an average life expectancy of 18 months or less. In our study of the long-term treatment results using imatinib (Gleevec), we found that approximately 7% of patients were still on front-line therapy at 10 years without any evidence of tumor progression. More importantly, the estimated 10 year survival was 23%. Progression-free and overall survival rates were significantly higher for patients with KIT exon 11-mutant GIST when compared with patients with KIT exon 9-mutant or “wild-type” GIST (no KIT/PDGFRA mutations).
Dr. James Moon[/caption]
James Moon, PhD
John Gideon Searle Assistant Professor
University of Michigan
Dept. of Pharmaceutical Sciences and Biomedical Engineering
Biointerfaces Institute
Ann Arbor, MI, 48109
MedicalResearch.com: What is the background for this study?
Response: The field of cancer immunotherapy has recently made a breakthrough with the clinical success of immune checkpoint inhibitors, which work by removing the brakes on immunosuppressed T-cells. However, these approaches generally work by augmenting pre-existing T-cell immunity and benefit only a subset of patients. In addition, because the majority of somatic mutations in cancer cells are unique to each patient, cancer immunotherapy may benefit from a personalized approach.
Dr. Joyce O'Shaughnessy[/caption]
Joyce O'Shaughnessy, MD
Co-Chair, Breast Cancer Research
Texas Oncology-Baylor Charles A. Sammons Cancer Center
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: The MONALEESA-2 trial is a Phase III, randomized, double-blind, international study of LEE011 in combination with letrozole vs. letrozole alone, in postmenopausal women with HR+/HER2- advanced breast cancer who had received no prior systemic therapy for advanced disease.
Because de novo disease has not been previously treated with systemic treatment for early-stage breast cancer, tumors may exhibit a different disease biology, which could result in varied responses compared to patients who experience recurrence of their initial breast cancer. We analyzed a pre-defined subgroup of women with de novo HR+/HER2- advanced breast cancer to better understand the response of LEE011 plus letrozole in this patient population.
In the de novo advanced breast cancer patient sub-group, progression free survival was significantly prolonged; LEE011 plus letrozole reduced the risk of disease progression or death by 55% over letrozole alone (HR=0.448 [95% CI: 0.267–0.750]). The 12-month PFS rate was 82% in the LEE011 plus letrozole arm compared to 66% with letrozole alone.
Most adverse events were mild to moderate in severity, identified early through routine monitoring, and generally managed through dose interruption and reduction. The most common all-grade adverse events (≥30% of patients with de novo advanced breast cancer) in the LEE011 plus letrozole arm were neutropenia (70.2%), nausea (48.2%), fatigue (42.1%), alopecia (39.5%), and leukopenia (31.6%).
Prof. Scagliotti[/caption]
MedicalResearch.com Interview with:
Professor Giorgio V. Scagliotti
Chair of the Department of Oncology
University of Torino,Italy
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: LUME-Meso II is an international study designed to evaluate the safety and efficacy of nintedanib plus pemetrexed/cisplatin, followed by nintedanib versus placebo plus pemetrexed/cisplatin, followed by placebo, for the treatment of patients with unresectable malignant pleural mesothelioma (MPM).
MPM is a rare cancer that affects the cells that make up the mesothelium of the pleura – the lining or membrane that covers and protects the lungs. It represents less than 1% of all cancers and is often related to long-term asbestos exposure with some suffering from malignant mesothelioma.
A significant improvement in progression-free survival (PFS), the study’s primary endpoint, was observed for patients receiving nintedanib plus chemotherapy compared to patients receiving placebo plus chemotherapy.
Dr. Atul Deodhar[/caption]
Atul Deodhar, M.D., M.R.C.P.
Rheumatology
Oregon Health and Science University
MedicalResearch.com: What is the background for this study?
Response: Patients with psoriasis, psoriatic arthritis (PsA), or ankylosing spondylitis (AS) are at an increased risk of developing inflammatory bowel disease (IBD) compared with the general population. It is important that we assess whether new therapies, including the recently approved interleukin-17A (IL-17A) inhibitor, secukinumab, have an acceptable profile in terms of the risk of IBD in patients with psoriasis, PsA, or AS.
DR. THOMAS W. DUBENSKY, Jr.[/caption]
THOMAS W. DUBENSKY, JR., PH.D.
CHIEF SCIENTIFIC OFFICER
ADURO BIOTECH, INC.
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: This presentation highlights findings from multiple preclinical models evaluating ADU-S100 (also known as MIW815), Aduro Biotech’s investigational STING (Stimulator of Interferon Genes) Pathway Activator immunotherapy. The company is developing ADU-S100 in partnership with Novartis.
ADU-S100 is a synthetic ‘off-the-shelf’ small molecule immune modulator that is designed to generate a response against a patient’s own unique set of cancer antigens. It does this through the activation of human STING. STING is generally expressed at high levels in immune cells, including dendritic cells. Once activated, the STING receptor initiates a profound innate immune response through multiple pathways, inducing the expression of a broad profile of cytokines, including interferons and chemokines. This subsequently leads to the development of a systemic tumor antigen-specific T-cell adaptive immune response.
We conducted preclinical studies in a variety of preclinical models to better understand the potential mechanism of action of ADU-S100 and its potential for treating a variety of cancer types, both within the immediate tumor environment, as well as throughout the body. Data from these preclinical studies suggest the following:
Dr. Timothy Beukelman[/caption]
Timothy Beukelman, MD, MSCE
Associate Professor of Pediatrics
Division of Rheumatology and
Division of Clinical Immunology & Rheumatology
University of Alabama at Birmingham
MedicalResearch.com: What is the background for this study?
Response: In 2009 the US FDA issued a boxed warning about malignancies reported in children treated with TNF inhibitors but their analysis did not account for a possible malignancy risk from other medications of from the Juvenile idiopathic arthritis (JIA) disease process itself.
Dr. Feng Xie[/caption]
Feng Xie, Ph.D.
Associate Professor
Department of Clinical Epidemiology and Biostatistics
Faculty of Health Sciences
McMaster University
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Cutaneous melanoma, an aggressive and deadly form of skin cancer, in early stages is often cured with surgery alone. Most patients presenting with advanced-stage disease, however, are not candidates for surgery and drug therapy is the main course of treatment. Around 40-60% of melanomas have a mutation in the BRAF protein. Multiple effective first-line treatment options are available for patients with advanced BRAF-mutated melanoma, which fall under two established classes of drug therapies: targeted therapy and immunotherapy. Presently, it remains uncertain which is the optimal first-line treatment.
In our network meta-analysis we evaluated 15 randomized controlled trials published between 2011 and 2015 assessing the benefits and harms of targeted or immune checkpoint inhibitors in 6662 treatment naïve patients with lymph node metastasis not amenable to surgery or distant metastatic melanoma.
We found that combined BRAF and MEK targeted therapy and PD-1 immunotherapy were both equally effective in improving overall survival. Combined BRAF and MEK inhibition was most effective in improving progression-free survival. PD-1 inhibition was associated with the lowest risk of serious adverse events.
Dr. Lotze[/caption]
Dr. Michael Lotze, MD
Chief Scientific Officer, Lion Biotechnologies
San Carlos, CA 94070
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Adoptive cell therapy (ACT) with Tumor-infiltrating Lymphocytes (TIL) has shown promise in mediating cancer regression which rely on activation in vivo compared to other immunotherapies that utilize genetically modified T-cells. In TIL therapy, autologous administration of TIL expanded outside the body elicits a highly individualized, specific and potent attack against the tumor. Clinical trials conducted at the National Cancer Institute evaluating TIL therapy for the treatment of metastatic melanoma reported overall response rates of up to 56%. The durable responses observed in these metastatic melanoma patients as well as other patients with cervical cancer, cholangiocarcinoma, and head and neck cancer signal the potential for broader application of TIL therapy to treat patients with other solid tumors, currently an area of substantial unmet clinical need. Lion’s study, recently presented at the Society for Immunotherapy of Cancer, sought to demonstrate the feasibility of culturing and expanding TIL isolated from non-melanoma tumors. We were successful in culturing TIL from tumors obtained from bladder, cervical, head and neck, lung and triple negative breast cancer.
Leslie Chong
Imugene
Chief Operating Officer
Armadale, Australia
MedicalResearch.com: What is the background for this study? How does HER-Vaxx work?
• The technology originates from the Medical University of Vienna, one of Europe’s leading cancer institutes and was identified in 2012 by Dr Axel Hoos (Currently Sr. Vice President of Oncology R&D at GlaxoSmithKline, previous Clinical Lead on Ipilumimab at Bristol-Myers Squibb, a director at Imugene; his only Board seat worldwide)
• HER-Vaxx is a peptide vaccine designed to treat tumours that over-express the HER2/neu receptor, such as gastric, breast, ovarian, lung and pancreatic cancers. The vaccine is constructed from various B Cell epitopes of HER2/neu. It has been shown in pre-clinical work and in a Phase 1 study to stimulate a potent polyclonal antibody response to HER2/neu, a commercially and clinically validated cancer target. HER-Vaxx’s successful Phase 1 study was in patients with metastatic breast cancer and the next stage of development will be a Phase 1b/2 study in patients with gastric cancer initiating in 2016.
Dr. Shirish Gadgeel[/caption]
Shirish Gadgeel, MD
Leader of the Thoracic Oncology Multidisciplinary team
Professor at Karmanos Cancer Institute
Detroit
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: LUX-Lung 7 is the first global, head-to-head trial comparing second- and first-generation EGFR-directed therapies (afatinib and gefitinib respectively) for patients with EGFR mutation-positiveNon-Small Cell Lung Cancer NSCLC who received no prior treatment. The Phase IIb trial included 319 patients with advanced stage NSCLC harboring common EGFR mutations (del19 or L858R). The trial's co-primary endpoints were progression-free survival (PFS) by independent review, time to treatment failure and overall survival (OS); and the secondary endpoints included ORR, disease control rate, tumor shrinkage, patient-reported outcomes and safety.
Dr. Melanie Royce[/caption]
Melanie Royce, MD, PhD
Professor of Medicine
University of New Mexico School of Medicine
Director of the Breast Multidisciplinary Clinic and Program
UNM Cancer Center.
Albuquerque, NM
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: BOLERO-4 is an open label, single-arm, Phase II study that evaluates the combination of everolimus plus letrozole as a first-line treatment for hormone receptor (HR)-positive/HER2-negative advanced breast cancer patients, as well as the use of everolimus plus exemestane beyond initial progression.
Results of the Phase II BOLERO-4 clinical trial, presented as an oral presentation at the 2016 European Society for Medical Oncology (ESMO) annual meeting, show preliminary evidence that everolimus in combination with letrozole is effective in treating women with HR-positive/HER2-negative advanced breast cancer in the first-line setting. With follow up of 17.5 months, the median progression-free survival (PFS) is not yet reached. At six months, 83.6% (95% CI: 77.3-88.2%) of women taking everolimus plus letrozole in the first-line setting were without disease progression, and 71.4% (95% CI: 64.0%-77.5%) did not have disease progression at twelve months.
Safety findings from BOLERO-4 are consistent with previous studies of everolimus in advanced breast cancer, with the most common adverse events being stomatitis (67.8%), weight loss (42.6%) and diarrhea (36.1%). These adverse events were mostly grade 1 or 2 in severity1.
Dr. Arjun Balar[/caption]
Arjun Balar, M.D.
Assistant Professor of Medicine
Director - Genitourinary Medical Oncology Program
NYU Perlmutter Cancer Center
New York, NY 10016
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Standard treatment for advanced urothelial cancer includes cisplatin-based chemotherapy which has been shown to improve survival. But more than half of patients are not expected tolerate it well and alternative treatment is inferior to cisplatin. The average survival for these patients is in the range of 9-10 months with carboplatin-based treatment, which is the most commonly used alternative to cisplatin. Pembrolizumab is a PD-1 blocking antibody that reactivates the body’s cancer-fighting T-cells (part of the immune system) to fight urothelial cancer.
The trial overall enrolled 374 patients who had not yet received any treatment for advanced urothelial cancer, but were considered ineligible for cisplatin chemotherapy.
Dr. Mansoor Raza Mirza[/caption]
Dr. Mansoor Raza Mirza, MD
Medical Director: Nordic Society of Gynecologic Oncology
Board of Directors: Gynecologic Cancer Inter-Group (GCIG)
Faculty: European Society of Medical Oncology (ESMO)
Faculty: International Gynecologic Cancer Society (IGCS)
Chief Oncologist, Rigshospitalet
Copenhagen University Hospital
Copenhagen, Denmark
MedicalResearch.com: What is the background for this study?
Response: Recurrent ovarian cancer is an area of significant unmet medical need, and there have been few therapeutic advances for these patients in the past few decades.
Niraparib was studied to provide patients with recurrent ovarian cancer an option other than “watchful waiting,” potentially redefining the standard of care for the disease. The ENGOT-OV16/NOVA trial was a Phase 3 double-blind, randomized, placebo-controlled international study of maintenance treatment with niraparib compared with placebo. Niraparib successfully achieved the primary endpoint of prolonging progression-free survival versus placebo in all three prospectively defined primary efficacy populations:
Bernard Vanhove[/caption]
Bernard Vanhove, Chief Operating Officer
Director of R&D and International Scientific Collaborations
Ose Immunotherapeutics
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Myeloid suppressive cells, including tumor associated macrophages (TAM) and myeloid-derived suppressor cells (MDSC), represent an abundant immune cell type in the microenvironment of solid tumors where they promote tumor growth, metastases, angiogenesis, inhibiting anti-tumor immune responses. Myeloid cells selectively express SIRPα, an immune tyrosine associated inhibitory receptor (also named CD172a), which controls myeloid functions.
We investigated the role of Effi-DEM, new generation checkpoint inhibitor specifically targeting the SIRP- α receptor on the strategic SIRP-α/CD47 pathway in human macrophages polarization and MDSC differentiation. CD47 the ligand of SIRP alpha is ubiquitously expressed in human cells and has been found to be overexpressed in many different tumor cells with a poor prognosis established. Effi-DEM is a selective antagonist of these myeloid suppressive cells as its target SIRP-α is expressed on these cells. Based on this rationale, the preclinical studies conducted with Effi-DEM have demonstrated its potential to transform suppressor myeloid and tumor associated macrophage cells in non-suppressive cells, thereby inducing a reactivation of the immune response. Effi-DEM has also shown to be effective in various aggressive cancer models with encouraging preclinical results, both in monotherapy and in therapeutic combinations with anti-PD-L1 (checkpoint inhibitors) and anti-CD137 (4-1BB) mAbs, activators of the T-cell response. Significant efficacy and survival increase data were demonstrated in models of hepatocarcinoma, melanoma and triple negative breast cancer.
Prof. Gabriel N. Hortobagyi[/caption]
Gabriel N. Hortobagyi, MD, FACP, F.A.S.C.O.
Professor of Medicine
Nellie B. Connally Chair in Breast Cancer
Department of Breast Oncology
Co-Director, Multidisciplinary Breast Cancer Research Program
University of Texas MD Anderson Cancer Center
Houston, Texas
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: MONALEESA-2 is a Phase III randomized, double blind, placebo controlled, multicenter global registration trial to evaluate the safety and efficacy of LEE011 in combination with letrozole compared to letrozole alone in postmenopausal women with HR+/HER2- advanced breast cancer who received no prior therapy for their advanced breast cancer.
The primary efficacy results from the pivotal MONALEESA-2 study show LEE011 (ribociclib) plus letrozole significantly extended progression-free survival (PFS) compared to a standard of care, letrozole, as a first-line treatment in postmenopausal women with hormone receptor positive, human epidermal growth factor receptor-2 negative (HR+/HER2-) advanced or metastatic breast cancer (HR= 0.556; 95% CI: 0.429-0.720; p=0.00000329)1.
The results demonstrate that LEE011 plus letrozole reduced the risk of death or progression by 44% over letrozole alone, significantly extending PFS across all patient subgroups. More than half of women with measurable disease taking LEE011 plus letrozole saw their tumor size shrink by at least 30% during treatment (overall response rate (ORR) in patients with measurable disease = 53% vs 37%, p=0.00028)1.
Prof. Roger Nitsch[/caption]
Roger M. Nitsch, MD
Professor and Director
Institute for Regenerative Medicine · IREM
University of Zurich Campus Schlieren
Switzerland
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: The main finding is that treatment with aducanumab resulted in an unprecedented reduction of brain amyloid plaques in patients with Alzheimer's disease. The removal of amyloid from patients brains were both dose- and time-dependent. We also observed initial hints for stabilized brain functions in patients receiving aducanumab. In contrast, patients in the placebo group continued to declined as usual in this stage of Alzheimer's disease.
The main safety finding in 22% of all treated patients was ARIA - an Amyloid-Related Imaging Abnormality - suggestive of fluid shifts in the brains. In most cases, ARIA occurred in the absence of clinical signs and resolved spontaneously. In one third of the ARIA cases, patients experienced transient headaches. None of the patients had to hospitalized because of ARIA.
Lee Henderson, Ph.D.
CEO, Vybion, Inc.
Ithaca, NY 14852
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Huntington’s disease (HD) is a progressive and fatal neurodegenerative disease characterized by loss of both cognitive and motor function as a result of neuron loss primarily within the brain striatum. HD is directly caused by the expansion of CAG repeats in the huntingtin gene resulting in an expanded glutamine region (polyQ) near the N-terminus of the protein. Age of disease onset and the rate of progression is directly correlated to the size of the expansion with pathology observable at 35-70 repeats in adults and greater in juvenile onset. During normal turnover and degradation of the huntingtin protein, the N-terminal polyQ-containing fragments drive pathology and aggregate formation in cells. The direct link to progression has been described by several laboratories using cell-based and animal model studies and confirmed in humans as the binding of these N-terminal fragments to DNA and transcription factors that result in widespread gene dysregulation in neurons.
Dr Charles Akle, Chairman and
Dr. Linda Summerton, CEO
Immodulon Therapeutics
Short Hills, NJ 07078 and
London, UK
MedicalResearch.com: What is the background for Immodulon? Would you tell us a little about Dr. Charles Akle?
Response: Immodulon was established in November 2007. The founder and Chairman, Dr Charles Akle, was a Harley Street surgeon and pioneer of keyhole surgery who established Immodulon with the financial support of a former patient. His interest in immunology led him to the potential of cancer immunotherapy long before the term “immuno-oncology” was coined and when skepticism, rather than optimism was the norm.
His ambition from the start was to develop an affordable immunotherapy treatment that would transform the way that cancer is treated in the world today. Since then, Immodulon has become a leading, independent biopharmaceutical company with one of the longest running research projects into how to harness the power of the immune system in treating cancer. It also has its own R&D and manufacturing capability in Lyon, France.
The wider Immodulon senior team has extensive experience of bringing drugs to market and includes Dr James Shannon and Dr Jean Pierre Bizzari.
MedicalResearch.com Interview with: Mizuki Nishino, MD MPH Department of Radiology Brigham and Women’s Hospital and Dana-Farber Cancer Institute Boston, Massachusetts MedicalResearch.com: What is the background for this study? Response: Immune-checkpoint inhibitors including PD-1 and PD-L1 inhibitors have brought remarkable advances in treatment of cancer patients. Immune-checkpoint inhibitors are associated with a unique set of adverse events,...
Dr. Dirk Huebner[/caption]
Dirk Huebner, MD
Senior Medical Director
Oncology Therapeutic Area Unit
Takeda Pharmaceutical Company
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Cutaneous lymphomas are a category of non-Hodgkin lymphoma that primarily involve the skin. Cutaneous T-cell lymphoma, also known as CTCL, is the most common type of cutaneous lymphoma and typically presents with red, scaly patches or thickened plaques of skin that often mimic eczema or chronic dermatitis.
ADCETRIS® (brentuximab vedotin) is an antibody-drug conjugate directed to CD30, which is expressed on skin lesions in approximately 50 percent of patients with CTCL. The Phase 3 ALCANZA trial compared the use of single-agent ADCETRIS to a control arm of investigator’s choice of standard therapies, methotrexate or bexarotene, in 131 patients with CD30-expressing CTCL who received prior systemic or radiation therapy.
The study met its primary endpoint, demonstrating a highly statistically significant improvement in the rate of objective response lasting at least four months (ORR4). The ORR4 was 56.3 percent in the ADCETRIS arm compared to 12.5 percent in the control arm.
Felix Garzon[/caption]
Felix Garzon, MD, PhD
Senior Vice President
Head of Clinical Development
Actinium Pharmaceuticals, Inc.
New York, NY 10016
MedicalResearch.com: What is the background for this study? What is goal of this Study?
Response: Iomab-B (“Iomab”) was developed at the Fred Hutchinson Cancer Research Center (“the Hutch”) in Seattle, Washington. The Hutch is a pioneer in the field of bone marrow transplantation (BMT) having 3 Nobel Prizes and doctors there performed some of the first transplants for leukemia patients. Iomab-B is intended to be an induction and conditioning agent prior to a BMT for patients with relapsed or refractory Acute Myeloid Leukemia (AML) who are over the age of 55. BMT is the only potentially curative option for AML i.e. for this patient population that currently has a survival prognosis of 2-6 months which means that if Iomab-B is successful it would create a new market segment and offer patients a great clinical benefit and a hope for a cure. Actinium Pharmaceuticals licensed Iomab from the Hutch in 2012 and prior to us licensing Iomab, it had been studied in almost 300 patients in several phase 1 and phase 2 clinical trials in an array of blood cancers, both leukemias and lymphomas. Actinium is now the sponsor of a pivotal phase 3 trial for Iomab-B to study its use as an induction and conditioning agent prior to a bone marrow transplantation in patients with relapsed or refractory AML who are over the age of 55. This trial, which we have named the SIERRA (Study of Iomab-B in Elderly Relapsed or Refractory AML) trial, started at the end of June 2016 and we expect to enroll 150 patients by the end of 2017.
The primary endpoint of the SIERRA trial is durable complete remissions (dCR) of 6 months. The study arm will consist of Iomab-B administration followed by a bone marrow transplantation, patients will be evaluated for dCR at 6 months after engraftment, which will be assessed at day 28 or day 56. The control arm of the study will be physician’s choice of chemotherapy and if the patient is able to achieve a complete remission (CR) they may receive a BMT or some other form of treatment with curative intent. The study is designed to evaluate if the study arm of Iomab-B and a BMT can double the dCR rate of the control arm, which is designed to replicate the current treatment regimen prior to a bone marrow transplantation .