FREEDOM Trial Finds That High-Dose Anticoagulation Can Improve Survival for Hospitalized COVID-19 Patients

The FREEDOM trial was initiated and led by Valentin Fuster, MD, PhD, President of Mount Sinai Heart and Physician-in-Chief of The Mount Sinai Hospital.

An international trial led by Mount Sinai found that high-dose anticoagulation can reduce deaths by 30 percent and intubations by 25 percent in hospitalized COVID-19 patients who are not critically ill, when compared to the standard treatment, which is low-dose anticoagulation. The innovative FREEDOM trial was initiated and led by Valentin Fuster, MD, PhD, President of Mount Sinai Heart and Physician-in-Chief of The Mount Sinai Hospital.

The study results were announced Monday, March 6, in a late-breaking clinical trial presentation at the scientific sessions of the American College of Cardiology Together With World Congress of Cardiology (ACC.23/WCC) in New Orleans and simultaneously published in the Journal of the American College of Cardiology.

“What we learned from this trial is that many patients hospitalized with COVID-19 with pulmonary involvement, but not yet in the intensive care unit (ICU), will benefit from high-dose subcutaneous enoxaparin or oral apixaban to inhibit thrombosis and the progression of the disease,” Dr. Fuster says. “This is the first study to show that high-dose anticoagulation may improve survival in this patient population—a major finding since COVID-19 deaths are still prevalent.”

Clinical Insights, Early in the Pandemic

This work was prompted by the discovery early in the pandemic that many patients hospitalized with COVID-19 developed high levels of life-threatening blood clots. In March 2020, during the early days of the pandemic, Dr. Fuster observed patients with blood clots in their legs who had been admitted with COVID-19. After hearing from colleagues abroad of other cases of small, pervasive, and unusual clotting that had triggered myocardial infarctions, strokes, and pulmonary embolisms, he initiated decisive action.

“We became one of the first medical centers in the world to treat all COVID-19 patients with anticoagulant medications,” says Dr. Fuster, a pioneer in the study of atherothrombotic disease. “It was a decision that we believe saved many lives.”

This early protocol led to groundbreaking research and insights by Mount Sinai into the role of anticoagulation in the management of COVID-19-infected patients. Mount Sinai research showed that treatment with prophylactic (low-dose) anticoagulation was associated with improved outcomes both in and out of the intensive care unit among hospitalized COVID-19 patients. Researchers further observed that therapeutic (high-dose) anticoagulation might lead to better results. Then, they designed the FREEDOM COVID Anticoagulation Strategy Randomized Trial to look further into the most effective regimen and dosage for improving outcomes of hospitalized COVID-19 patients who are not critically ill.

Researchers enrolled 3,398 hospitalized adult patients with confirmed COVID-19 (median age 53) from 76 urban and rural hospitals across 10 countries—including hospitals within the Mount Sinai Health System—between August 26, 2020, and September 19, 2022. Patients were not in the ICU or intubated, and about half of them had signs of COVID-19 impacting their lungs with acute respiratory distress syndrome (ARDS). Patients were randomized to receive doses of three different types of anticoagulants within 24 to 48 hours of being admitted to the hospital and followed for 30 days. Equal numbers of patients were treated with one of three different drug regimens: low-dose injections of enoxaparin, high-dose injections of enoxaparin, and high-dose, oral doses of apixaban. They compared the combined therapeutic groups to the prophylactic group.

Informing Future Care

The primary endpoint was a combination of death, requirement for ICU care, systemic thromboembolism (blood clots traveling through the arteries), or ischemic stroke at 30 days. This endpoint was not significantly reduced among the groups. However, 30-day mortality was lower for those treated with high-dose anticoagulation compared with those on the low-dose regimen. Seven percent of patients treated with the low-dose anticoagulation died within 30 days, compared with 4.9 percent of patients treated with high-dose anticoagulation—an overall reduction of 30 percent. The need for intubations was also reduced in the high-dose group: 6.4 percent of patients on the high-dose regimen were intubated within 30 days compared with 8.4 percent in the low-dose group—a 25 percent reduction. The study showed high-dose anticoagulation to be especially beneficial for patients with ARDS, a condition where COVID-19 damages the lungs. Among patients with ARDS at the time of hospital admission, 12.3 percent in the low-dose anticoagulation group died within 30 days, compared with 7.9 in the high-dose group.

All groups had low bleeding rates, and there were no differences between the two therapeutic blood thinners for safety and efficacy.

“This is an important study for patients with COVID-19 who are sick enough to require hospitalization but not so ill as to require ICU management. In this group of patients with radiologic evidence of ARDS, therapeutic dose anticoagulation prevents disease progression, especially the need for intubation, and saves lives,” says co-Principal Investigator Gregg W. Stone, MD, Professor of Medicine (Cardiology), and Population Health Science and Policy, at the Icahn School of Medicine at Mount Sinai. “This is especially important as COVID-19 is not going away. Even in the United States, the current number of daily deaths, although much lower than at the peak of the pandemic, is twice that compared with just one year ago. And in other countries COVID-19 is raging”

The FREEDOM trial was coordinated by the Mount Sinai Heart Health System. Dr. Fuster raised all funding for the trial.

Mount Sinai Experts Discuss the Future of Cancer Care and Research

More than 50 years after the United States formally declared war on cancer, what is the prognosis for innovative cancer research and care?

Two Mount Sinai leaders in cancer care and research, Ramon Parsons, MD, PhD, Director of The Tisch Cancer Institute at the Icahn School of Medicine at Mount Sinai, and Cardinale Smith, MD, PhD, Vice President, Cancer Clinical Services for the Mount Sinai Health System, offered their perspectives as part of a recent 92nd Street Y online event. You can watch the video here.

The two agreed on this overarching message: Tremendous progress has been made in unraveling the complex biology of cancer and targeting its many forms with advanced new medicines, particularly immunotherapies. But looming just as large are the challenges that remain in areas like overcoming resistance to these medicines, early detection of cancer through screening, and ensuring the equitable distribution of cancer care to diverse and disadvantaged populations.

Ramon Parsons, MD, PhD

“After 50 years we have a much more sophisticated understanding of how genes are altered in the cancer cell and how cancer cells reprogram the tumor microenvironment,” said Dr. Parsons, the Ward-Coleman Chair in Cancer Research. “And that has pushed the envelope in terms of our knowledge of the biology of cancer and, just as importantly, how we treat it. We’re seeing better outcomes for more and more of our patients and believe cancer rates will continue to come down because of treatments we didn’t have in the past, and more informed prevention.”

Dr. Smith, who is also Chief Medical Officer for the Tisch Cancer Hospital and a Professor of Medicine (Hematology and Medical Oncology), described the dramatic changes in cancer care and treatment, particularly in her specialized field of lung cancer.

“When I finished my fellowship training 12 years ago we had just two drugs for lung cancer, and now there are so many more,” she said. “Patients I treated as a fellow are still alive today thanks to clinical trials for new investigative drugs they were able to enroll in.”

Immunotherapies have carved out many of the greatest gains, while also raising some obstacles for the research community. Immunotherapy refers to treatments that use a person’s own immune system to fight cancer.

“The next frontier is determining which patients are going to have a long-term response to immunotherapy, and how do we overcome the resistance we so often see with these therapies,” said Dr. Parsons. “That’s the biology we still need to figure out, and to that end some of the research we’re most excited about is aimed at helping us better understand the switches in the immune system and how they can be regulated therapeutically.”

Two other areas of research where Dr. Parsons sees great promise are tumor suppressors, which are genes that regulate a cell during cell division, and liquid biopsies, which can detect through a simple blood test at the doctor’s office circulating tumor cells and tumor DNA.

With a strong background in tumor suppressors, he sees great advantage in being able to develop gene therapy or other innovative approaches to restore tumor suppressors, a natural part of the body’s defense mechanism that becomes altered or mutated in almost every type of cancer.

Liquid biopsies, still in early-stage development, could be another significant development. “This idea of being able to catch cancers before they are recognizable is going to ultimately move the needle in improving patient survival,” he said.

Cardinale Smith, MD, PhD

For Dr. Smith, early detection includes more aggressive screening by the health care providers.

“Uptake of lung cancer screening has been slow,” she said. “A lot of the work we’ve been doing at Mount Sinai is connecting with the community to understand what their needs are and how they prefer to partner with us. As a result, we’ve increased mammographies for women to detect breast cancer, and improved colorectal cancer screening for both men and women. Now we need to make the same kind of progress with lung cancer screening.”

She noted that as part of its outreach, Mount Sinai in April 2022 launched the Mount Sinai Robert F. Smith Mobile Prostate Cancer Screening Unit after noticing a high mortality rate for the disease in certain neighborhoods of New York City with a high Black male population. The purchase was funded by a $3.8 million donation from philanthropist Robert F. Smith. This successful effort between the Institute and the Department of Urology has been collecting blood samples to measure PSA levels and referring individuals for follow-up care when a problem is detected.

The nation’s war on cancer formally began with the National Cancer Act of 1971, which established the National Cancer Institute. As for the future of cancer care, Dr. Smith foresees patient care navigation and a palliative care workforce as movements with transformative potential.

Navigators with the ability to compassionately guide people through the often challenging cancer screening and treatment process would be an extremely beneficial allocation of resources, she maintains. So would development of specialized palliative care teams that could provide training and skills to oncologists and other clinicians, including nurses and advanced practice providers.

“We know that palliative care when combined with standard oncologic care can improve patients’ quality of life and mood by decreasing depression,” she said. “It also decreases unnecessary utilization of acute care, such as emergency room visits, hospitalizations, and readmission. Most importantly, it aligns cancer care with the goals and values of the patients, which all of us as clinicians need to hold as sacred in the years ahead.”

Using Insights From the Pandemic to Advance Research on Immunity in Down Syndrome

Louise Malle, MD/PhD candidate, and Dusan Bogunovic, PhD

In April 2020, as the COVID-19 pandemic spread through New York City, Louise Malle, an MD/PhD candidate at the Icahn School of Medicine at Mount Sinai, turned her focus to the disturbing statistics coming out on disease severity. She thought the data might inform her research to better understand immunity in people with Down syndrome.

Louise Malle, MD/PhD candidate

Ms. Malle, who works in the lab of Dusan Bogunovic, PhD,  surveyed thousands of patients diagnosed with COVID-19, and essentially found that individuals with the syndrome have about 10 times the likelihood of having extremely severe disease.

Dr. Bogunovic is Professor at the Marc and Jennifer Lipschultz Precision Immunology Institute, The Mindich Child Health and Development Institute, the Icahn Genomics Institute, and the departments of Oncological Sciences, Microbiology, Pediatrics, and Dermatology, as well as a Director of the Center for Inborn Errors of Immunity—all at Icahn Mount Sinai.

It turns out that Ms. Malle’s epidemiological observation added to a body of literature that suggests that severe viral disease is a problem in Down syndrome. The work led to new findings, published online on October 14, 2022 in the journal Immunity, showing that people with Down syndrome have less frequent but more severe viral infections.

“As we all were caught in the COVID-19 pandemic, Louise saw what was going on in the clinic in people with Down syndrome (based on her review of hospital records),” said Dr. Bogunovic, senior study author. “She saw what was going on in the world and then came to the lab, ultimately figuring out, at least in part, why this understudied and underserved population experiences more severe viral infections across the board.”

According to the study, this phenomenon is caused by increased expression of genes that sense an antiviral cytokine, type I interferon (IFN-I), as they are encoded on chromosome 21. Elevated sensing of IFN-I lead to hyperactivity of the immune response initially, but the body overcorrects for this to reduce inflammation, leading to increased vulnerability later in the viral attack.

Dusan Bogunovic, PhD

“Usually too much inflammation means autoimmune disease, and immune suppression usually means susceptibility to infections,” says Dr. Bogunovic. “What is unusual is that individuals with Down syndrome are both inflamed and immunosuppressed, a paradox of sorts. Here, we discovered how this is possible.”

Down syndrome is typically caused by triplication of chromosome 21. The syndrome affects multiple organ systems, causing a mixed clinical presentation that includes varying degrees of intellectual disability, developmental delays, congenital heart and gastrointestinal abnormalities, and Alzheimer’s disease in older individuals. It is universally present across racial, gender, or socioeconomic lines in approximately 1 in 800 live births, although there is considerable variation worldwide.

Recently, it has become clear that atypical antiviral responses are another important feature of Down syndrome. Increased rates of hospitalization of people with the genetic disorder have been documented for influenza A virus, respiratory syncytial virus, and severe acute respiratory syndrome due to coronavirus (SARS-CoV-2) infections, according to the researchers.

“We have a lot more to do to completely understand the complexities of the immune system in Down syndrome,” said Ms. Malle, first author of the study. “We have here, in part, explained the susceptibility to severe viral disease, but this is only the tip of the iceberg.”

Marla C. Dubinsky, MD, Receives 2022 Sherman Prize Recognizing Excellence in Inflammatory Bowel Disease

Marla C. Dubinsky, MD

Marla C. Dubinsky, MD, an internationally recognized leader in pediatric inflammatory bowel disease (IBD), was one of three national recipients of the 2022 Sherman Prize.

The award, which recognizes individuals for pioneering achievements that have transformed patient care and rewards outstanding achievements in Crohn’s Disease and Ulcerative Colitis, was announced September 21 by the Bruce and Cynthia Sherman Charitable Foundation.

Dr. Dubinsky is Professor of Pediatrics and Medicine (Gastroenterology) at the Icahn School of Medicine at Mount Sinai. She is also Chief of the Division of Pediatric Gastroenterology at the Mount Sinai Kravis Children’s Hospital and Co-Director of the Susan and Leonard Feinstein Inflammatory Bowel Disease Clinical Center at Mount Sinai.

In its announcement, the Foundation cited Dr. Dubinsky as “one of IBD’s preeminent game changers” and said she has been “giving hope to children and their parents for decades.” The Foundation added, “Dr. Dubinsky works on being a guiding figure for those coming up the ranks, teaching her mentees to tailor care to a patient’s needs and reinforcing the importance of empowering patients to better manage their IBD so they can live the life they want.”

Her work has included defining therapeutic dosing levels of medicines to optimize treatment in children; identifying some of the most predictive biomarkers for disease progression; and bringing intestinal ultrasound to the bedside. In addition, she is the co-founder of Trellus Health, a publicly traded digital health company based in London and New York that has a goal of improving care for people with chronic conditions. The other co-founder is Laurie Keefer, PhD, Professor of Psychology and Director for Psychobehavioral Research within the Division of Gastroenterology.

“I am both humbled and honored to be one of the 2022 Sherman Prize recipients,” said Dr. Dubinsky. “It is truly an honor to be recognized for your life’s passion and this award inspires me to keep pushing forward and continuing to impact the lives of patients with IBD.”

Uma Mahadevan, MD, Professor of Medicine, Director of the Colitis and Crohn’s Disease Center, and Director of the Advanced IBD Fellowship at the University of California San Francisco in San Francisco was also awarded the Sherman Prize.  Both Sherman Prize honorees receive a prize of $100,000.

Parambir S. Dulai, MD, Associate Professor of Medicine in the Division of Gastroenterology and Hepatology, Director of GI Clinical Trials and Precision Medicine, and Director of the Digestive Health Foundation BioRepository at Northwestern University in Evanston, Illinois, received the Sherman Emerging Leader Prize Honoree, which includes a $25,000 prize.

In Milestone Finding, ‘Polypill’ Reduces Cardiovascular Mortality by 33 Percent in Patients Treated After a Heart Attack

Valentin Fuster, MD, PhD, at the European Society of Cardiology Congress in Barcelona, Spain

In a milestone in cardiovascular medicine, a  three-drug medication known as a “polypill” was found effective in preventing adverse events such as heart attacks or stroke in people who have previously had a heart attack, reducing cardiovascular mortality by 33 percent in this patient population. These are findings from the SECURE trial led by Valentin Fuster, MD, PhD, Director of Mount Sinai Heart and Physician-in-Chief of The Mount Sinai Hospital.

The study results were announced on Friday, August 26, at the European Society of Cardiology Congress (ESC 2022) in Barcelona, Spain, and published in The New England Journal of Medicine.

“The results of the SECURE study show that for the first time that the polypill, which contains aspirin, ramipril, and atorvastatin, achieves clinically relevant reductions in the recurrent cardiovascular events among people who have recovered from a previous heart attack because of better adherence to this simplified approach with a simple polypill, rather than taking them separately as conventional,” says Dr. Fuster, General Director of the Spanish National Center for Cardiovascular Research (CNIC), which developed the polypill.

Patients recovering from a heart attack—also known as myocardial infarction—are prescribed specific treatments to prevent subsequent cardiovascular events. Standard therapy includes three different drugs: an antiplatelet agent (like aspirin); ramipril or a similar drug to control blood pressure; and a lipid-reducing drug, such as a statin. However, fewer than 50 percent of patients consistently adhere to their medication regimen.

“Although most patients initially adhere to treatment after an acute event such as an infarction, adherence drops off after the first few months. Our goal was to have an impact right from the start, and most of the patients in the study began taking a simple polypill in the first week after having a heart attack,” Dr. Fuster explains.

“Adherence to treatment after an acute myocardial infarction is essential for effective secondary prevention,” says José María Castellano, MD, study first author and Scientific Director of Fundación de Investigación HM Hospitales.

The concept of a polypill for cardiovascular disease prevention was proposed in 2003 and widely debated among experts, with some arguing that it could reduce heart disease at a population level and others arguing that patients could wrongly consider it as a substitute for healthy lifestyles. In 2007, the potential value of applying the polypill strategy in high-risk patients was recognized by the WHO and the World Heart Federation, and Dr. Fuster authored a call to action in Nature Clinical Practice Cardiovascular Medicine,  “A polypill for secondary prevention: time to move from intellectual debate to action.”

Scientists at the CNIC, in partnership with FERRER laboratories, developed a polypill and have conducted a range of studies over the intervening years. CNIC scientists first demonstrated that prescription of the CNIC polypill significantly improved treatment adherence among patients recovering after a myocardial infarction, in the FOCUS study, published in the Journal of the American College of Cardiology (JACC).

The CNIC team launched the SECURE study, an international randomized clinical trial, to determine whether the improved treatment adherence with the polypill translated into a reduction in cardiovascular events. The polypill analyzed in the study, commercialized under the name Trinomia, contains aspirin (100 mg), the angiotensin-converting enzyme inhibitor ramipril (2.5, 5, or 10 mg), and atorvastatin (20 or 40 mg).

SECURE included 2,499 patients from seven European countries (Spain, Italy, Germany, the Czech Republic, France, Poland, and Hungary) recovering after a heart attack. Study participants were randomly assigned to receive standard therapy or the CNIC polypill. The average age of the participants was 76 years, and 31 percent were women. The study population included 77.9 percent with hypertension, 57.4 percent with diabetes, and 51.3 percent with a history of smoking tobacco.

Researchers analyzed the incidence of four major cardiovascular events: death from cardiovascular causes, non-fatal myocardial infarction, non-fatal stroke, and need for emergency coronary revascularization (the restoration of blood flow through a blocked coronary artery). The study followed patients for an average of three years and produced conclusive results: patients taking the CNIC polypills had a 24 percent lower risk of these four events than patients taking the three separate drugs.

The standout finding of the study is the effect of the polypill on the key outcome of cardiovascular-related death, which showed a relative reduction of 33 percent, from 71 patients in the group receiving standard treatment to just 48 in the polypill group. Importantly, the study found that patients in the polypill group had a higher level of treatment adherence than those in the control group, thus confirming the findings of the earlier FOCUS study, and in part such good adherence appears to explain the benefits of the simple polypill.

“The SECURE study findings suggest that the polypill could become an integral element of strategies to prevent recurrent cardiovascular events in patients who have had a heart attack,” Dr. Fuster says. “By simplifying treatment and improving adherence, this approach has the potential to reduce the risk of recurrent cardiovascular disease and death on a global scale.”

Jennifer Chan, PhD, Receives Robin Chemers Neustein Postdoctoral Fellowship Award for Innovative Research

Jenneifer Chan, PhD, and Ian Maze, PhD

Jennifer Chan, PhD, whose work is vastly expanding knowledge about pregnancy, brain health, and stress, is the recipient of the 2022 Robin Chemers Neustein Postdoctoral Fellowship Award, established in 2010 to encourage and support female research scientists at the Icahn School of Medicine at Mount Sinai.

Recipients are senior postdoctoral scientists who intend to complete their training within two years, have demonstrated high-impact accomplishments in biomedical sciences, and exhibit the potential for an independent scientific career. Dr. Chan is the 23rd recipient of the award, created through a generous gift from Robin Chemers Neustein, JD, MBA, a former member of Mount Sinai’s Boards of Trustees.

Dr. Chan works in the laboratory of neurobiologist Ian S. Maze, PhD, in the Nash Family Department of Neuroscience. Dr. Maze, who was appointed as a Howard Hughes Medical Institute (HHMI) Investigator in 2021, is a Professor of Neuroscience, and Pharmacological Sciences, and the founding director of the Center for Neural Epigenome Engineering at Icahn Mount Sinai, the nation’s first center devoted exclusively to neuroepigenomic engineering.

Dr. Maze’s lab is focused on delineating the molecular and biochemical mechanisms of neuroepigenetic plasticity—changes in the underlying biochemical mechanisms that control whether genes are turned on or off within a given cell-type in the brain. This plasticity is important for allowing brain cells to appropriately respond to changing environments, which is critical for proper neurodevelopment—and which can cause disease when there is inappropriate tuning of gene expression.

Jennifer Chan, PhD

For example, aberrations in these processes can produce devastating neurological and psychiatric disorders, such as epilepsy, Parkinson’s disease, Alzheimer’s disease, substance use disorders, and major depressive disorders. These aberrations can occur during brain development or throughout life due to such factors as environmental toxins, physical trauma, chronic stress, and exposure to drugs of abuse.

The Maze lab—through the integration of technologically innovative and sophisticated new methodologies in chemical biology, proteomics, protein biochemistry/engineering, and structural biology—is advancing the understanding of these processes and working toward the development of targeted neurotherapeutics to treat these conditions.

“Using the most advanced epigenomic, metabolomic, and gene editing approaches in my lab, Dr. Chan is revolutionizing our understanding as to how environmental stimuli, both adaptive and maladaptive, impact epigenetic regulation of gene expression in the maternal brain to alter neural circuitry and behavior,” says Dr. Maze. “Delineating the mechanisms through which the experience of pregnancy imparts long-lasting changes in molecular and physiological properties of the brain promises to greatly aid in our understanding of how such a profound lifetime experience—shared by so many—contributes to brain health. Dr. Chan is an exceptionally talented and innovative young scientist, and I am absolutely thrilled by such prestigious recognition of her paradigm-shifting work.”

Dr. Chan joined the lab in 2018. Her research interests focus on understanding how biological systems outside the nervous system interact with stress to impact the brain during windows of neuroplasticity—times of active brain organization that are particularly susceptible to environmental and physiological challenges. Specifically, her work examines periods of early brain development and female reproductive experiences in rodents, including the long-term impact of pregnancy and postpartum experiences on the brain, and how stress disrupts normal organizational processes during these important windows.

“The experience of being pregnant dramatically changes both the body and brain,” says Dr. Chan. “While studies in patient populations and animal models have shown that these changes can persist long after giving birth, we still don’t understand the molecular mechanisms that control these processes.”

In particular, Dr. Chan investigates the contribution of epigenetic mechanisms underlying these experiences by combining molecular, biochemical, genome editing, and behavioral approaches in her postdoctoral research.

“The fundamental understanding of what reproductive experience does to the brain long-term has not been well studied,” says Dr. Chan. “My work shows that stress during these periods has a significant effect on the maternal rodent brain. I hope that through my research we can learn more about how pregnancy and postpartum experiences contribute to brain health and also emphasize that overall we need to do a better job of reducing stress during these critical windows—such as encouraging parental leave and making sure people have the financial, social, and health-related resources needed to support themselves.”

Says Dr. Chan: “I am incredibly honored to be the recipient of this year’s Robin Chemers Neustein Postdoctoral Fellowship Award. The direction for this research project was sparked by personal interest, and I am extremely encouraged by Dr. Maze’s support and that the selection committee also believes in these important questions.”