Dr. Liu-Ambrose[/caption]
Teresa Liu-Ambrose, PT, PhD
Canada Research Chair (Tier II), Physical Activity, Mobility, and Cognitive Neuroscience
Director, Aging, Mobility, and Cognitive Neuroscience Laboratory
University of British Columbia
MedicalResearch.com: What is the background for this study?
Response: Falls in older adults are the third-leading cause of chronic disability and the leading cause of hospitalization for adults over age 65. Older adults who experience multiple falls are at increased risk for disability, loss of independence, and even death. How to best prevent falls in this high risk group is not well established.
Dr. Goyal[/caption]
Monika K. Goyal, M.D., MSCE
Assistant chief of Children’s Division
Emergency Medicine and Trauma Services
MedicalResearch.com: What is the background for this study?
Response: Adolescents are disproportionately affected by sexually transmitted infections (STIs) and often present to the emergency department for care. I have devoted almost 15 years of my career trying to improve the sexual health of teens through advocacy and the development of novel interventions in the emergency department to increase access to sexual health services for youths.
Dr. Stasenko
Dr. Cohen[/caption]
Eyal Cohen, MD, M.Sc, FRCP(C)
Professor, Pediatrics
University of Toronto
Co-Founder, Complex Care Program
The Hospital for Sick Children
MedicalResearch.com: What is the background for this study?
Response: Minimizing care that provides little benefit to patients has become an important focus to decrease health care costs and improve the quality of care delivery. Diagnostic imaging in children is a common focus for campaigns designed to reduce overuse both in Canada and the US. There are some suggestions that there may be more overuse of care in the United States than Canada, but there has been little study in children.
We compared the use of low-value diagnostic imaging rates from four pediatric emergency departments in Ontario to 26 in the United States from 2006 to 2016. We defined low-value imaging as situations where children are discharged from an emergency department with a diagnosis for which routine use of diagnostic imaging may not be necessary, like asthma or constipation.
Joe F. Bozeman III[/caption]
Joe F. Bozeman III, MS, CEM, Ph.D. Candidate
Chair, Gordon Research Seminar (Industrial Ecology)
University of Illinois at Chicago (UIC)
Institute for Environmental Science and Policy
MedicalResearch.com: What is the background for this study?
Response: This study is actually a part of my dissertation which explores how climate change, human health, and other socioecological factors can be used to manage food-energy-water impacts. After establishing environmental impact and climate change adaptation implications of food consumption across major U.S. demographic groups in a previous study, my colleagues and I decided it would be interesting to investigate how food spending and household income correlate with food-consumption environmental impacts. Our efforts led to the development of a novel quantitative metric (i.e., food-consumption impact per dollar spent [FCI$]) which encompasses land, water, and greenhouse gas emission impacts of basic foods; the amount spent on food; and socioeconomic status. All major food groups are included in this study.
Dr. Hawkins[/caption]
Douglas S. Hawkins, M.D.
Hematology/Oncology Division Chief and Professor
Pediatrics at Seattle Children's Hospital
University of Washington School of Medicine
MedicalResearch.com: What is the background for this study?
Response: TRK fusion cancer is caused by a rare genomic alteration called a neurotrophic receptor tyrosine kinase (NTRK) gene fusion.
Larotrectinib is a central nervous system (CNS) active, oral and highly selective TRK inhibitor used for the treatment of adult and pediatric patients with solid tumors that have a rare genomic alteration called an NTRK gene fusion. Larotrectinib was approved at the end of 2018 in the U.S. under the brand name VITRAKVI®, with European and worldwide regulatory submissions underway.
At ASCO 2019, we will be presenting results from a new analysis specifically looking at the efficacy and safety of larotrectinib in pediatric patients (n=34) included in the expanded dataset from both adults and children across 24 tumor types, which was presented first at the European Society for Medical Oncology (ESMO) 2019 Annual Meeting.
Dr. Julie Graff[/caption]
MedicalResearch.com Interview with:
Julie N. Graff, MD
Associate Professor of Medicine
Knight Cancer Institute
Chief of Hematology/Oncology
VA Portland Health Care System
MedicalResearch.com: What is the background for this study?
Response: Androgen deprivation therapy is often deployed in patients with a rising PSA after local therapy (such as radical prostatectomy or radiation therapy). With time, the prostate cancer can develop resistance to ADT, at which point it is called castration resistant prostate cancer (CRPC). There were 6 treatments for metastatic CRPC that have shown improved survival. However, in non-metastatic disease, there was nothing that showed improved survival.
The SPARTAN study was designed to determine if a next generation androgen receptor antagonist could delay the time to metastatic disease. Overall survival was a secondary endpoint.
Dr. Barr[/caption]
Paul M. Barr, M.D.
Associate Professor of Medicine and Director of the Clinical Trials Office
Director of the Clinical Trials Office
Wilmot Cancer Institute
MedicalResearch.com: What is the background for this study?
Response: When the study was designed, chronic lymphocytic leukemia (CLL) treatment options were largely limited to chemotherapy and monoclonal antibodies.
Ibrutinib had shown promise in early studies. The intent was to compare ibrutinib to a standard of care treatment option at that time, of atumumab, in patients with relapsed or refractory disease. The goal of the current analysis is to evaluate the durability of ibrutinib and report the long-term safety results.
Dr. Gary Smith[/caption]
Dr. Gary Smith, MD MPH
Director, Center for Injury Research and Policy
Nationwide Children’s Hospital
Columbus, OH
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Our 2016 study (https://pediatrics.aappublications.org/content/137/5/e20154529) investigated calls to US poison control centers related to laundry and dishwasher detergent exposures among children younger than 6 years old from 2013 through 2014 and found that poison control centers received more than 30 calls a day about children who had been exposed to a laundry detergent packet, which is about one call every 45 minutes.
The current study investigated trends in calls to poison control centers across the country for exposure to liquid laundry detergent packets in order to evaluate the impact of the voluntary safety standard for this product with a focus on young children. The study found only a modest decrease (18%) in calls for children younger than 6 years of age following adoption of a 2015 product safety standard as well as an increase in calls for older children and adults. Exposures to the eyes also continued to climb.
The observed decrease in exposures among young children is considerably less than the 40% to 55% decrease in toxic ingestions seen after passage of the Poison Prevention Packaging Act. This demonstrates that the current liquid laundry detergent safety standard is inadequate and needs to be strengthened.
Dr. Ristvedt[/caption]
Stephen L. Ristvedt, Ph.D.
Associate Professor of Anesthesiology
Washington University
St. Louis, MO 63110-1093
MedicalResearch.com: What is the background for this study?
Response: Having a usual source of healthcare – either with a regular doctor or a medical clinic – is the best way to manage one’s health in a proactive way. Doctors and clinics can provide ongoing guidance with regard to the use of preventive medical screenings as well as the management of chronic illness. Unfortunately, a significant proportion of US adults do not have a usual source of healthcare. Also, many people often rely for their healthcare needs on a hospital emergency department, where there is neither sufficient continuity of care nor counseling for prevention.
We wanted to investigate what factors might contribute to suboptimal utilization of healthcare resources. We were particularly interested in looking at individual psychological factors that might play a role in the choices that people make when seeking healthcare. One specific psychological characteristic proved to be important in our study. That characteristic is called “threat sensitivity,” and it is measured with a simple questionnaire. People who are relatively high in threat sensitivity are prone to experience high levels of anxiety in potentially threatening situations
Dr. Bobitt[/caption]
Julie Bobitt, PhD
Director
Interdisciplinary Health Sciences
College of Applied Health Sciences
University of Illinois at Urbana Champaign
Champaign, IL 61820
MedicalResearch.com: What is the background for this study?
Response: Older adults are using cannabis at an increasing rate but little is known about their attitudes about, and experiences – including outcomes- with, recreational and medical cannabis use. We believed a qualitative study, where we conducted focus group interviews, would provide a novel perspective to our understanding and help to identify the most salient themes concerning the use of medical and recreational cannabis by adults aged 60 and older living in Colorado.
Dr. Fabrice André[/caption]
Fabrice André, MD, PhD
Research director and head of INSERM Unit U981
Professor in the Department of Medical Oncology
Institut Gustave Roussy in Villejuif, France
Global SOLAR-1 Principal Investigator.
MedicalResearch.com: What is the background for this study? How does Piqray® differ from other treatments for this type of advanced breast cancer?
Dr. McCoul[/caption]
Edward McCoul, MD, MPH, FACS
Associate Professor
Director, Rhinology and Sinus Surgery
Department of Otorhinolaryngology
Ochsner Clinic
New Orleans, Louisiana
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Although the potential for doctors and patients to misunderstand each other has been noted in other areas of medicine, the meaning of the word "congestion" had not previously been the subject of study. This paper calls attention to the relevance of potential communication gap in otolaryngology. This is particularly important since congestion is a major diagnostic criteria of sinusitis, which ranks nationwide in the top 5 reasons for clinical encounters year after year. If a communication gap is evident around this particular term, which is integral to establishing a diagnosis of sinusitis, then the likelihood increases that patients who present with "sinusitis" will be incorrectly diagnosed.
The process of congestion refers to the microscopic accumulation of blood and/or fluid within cells or the spaces between cells in a particular tissue or body part. When this occurs in the nose, the result is swelling inside the nose, which narrows the space for air to flow. A patient would perceive this as blockage or obstruction of airflow. This can be treated with anti-inflammatory medication that reduces swelling. Medications that clear up mucus generally are not great at reducing swelling. Many over-the-counter products are available that combine both types of medications, but using those products runs the risk of overmedication, which can have adverse consequences.
There is increasing financial interest in oncology so addressing the risk associated with financial interactions with industry and conflicts of interest are more important than ever....
Prof. Chadha[/caption]
Manjeet Chadha, MD, MHA, FACR, FASTRO
Prof. Radiation Oncology
Director of the Department of Radiation Oncology
Mount Sinai Downtown
MedicalResearch.com: What is the background for this study?
Response: Largely, the goal of cancer care among the elderly is to de-escalate therapy searching for a modality that is both an effective treatment and also associated with minimal toxicity.
Approximately, 30% of new breast cancers diagnosed annually are among women older than 70 years of age. Age-adjusted trends note a relatively higher incidence of stage I breast cancer in women between the ages of 70-74 years. For this group of patients, it is imperative that we take a closer look at the evidence-base for our current practice standards, and evaluate opportunities to improve cancer care delivery in the elderly.
Randomized trials have helped arrive at an acceptance of adjuvant endocrine monotherapy in older patients with ER positive, node negative breast cancer. However, in the older patients high rates of non-compliance to tamoxifen secondary to poor tolerance is widely recognized. Emerging data also detail the side effect profile of aromatase inhibitors. Most commonly observed symptoms of arthralgia, reduced bone mineral density, and increased risk of fractures throughout the duration of treatment are important considerations for an older population. At least a quarter of patients on aromatase inhibitors discontinue therapy specifically due to skeletal events and musculoskeletal symptoms. Overall, the side effects of ET contribute to a high rate of non-compliance and negative impact on patients’ quality of life.
Dr. Suda[/caption]
Dr. Katie Suda, PharmD, M.S.
Associate Professor
College of Pharmacy
University of Illinois at Chicago
MedicalResearch.com: What is the background for this study?
Response: Dentists prescribe approximately 1 in every 10 antibiotics in the United States and are the top specialty prescriber. Dentists are the primary prescriber of clindamycin in the U.S., which is associated with a high risk of C. difficile infection (an overgrowth of bacteria in the GI tract that can cause a life-threatening infection). Clinical guidelines recommend that patients with specific cardiac conditions receive a dose of antibiotics prior to undergoing invasive dental procedures to prevent infective endocarditis (an infection of the heart values). Taking a dose of antibiotics prior to a dental visit is referred to as antibiotic prophylaxis. Starting in 2007, these guidelines were narrowed secondary to poor evidence on the effectiveness of antibiotic prophylaxis and the risk of antibiotic-related adverse events. Antibiotic adverse events include antibiotic resistance, C. difficile infection, and other general adverse events (nausea, vomiting, diarrhea).
While significant research has been conducted on unnecessary prescribing of antibiotics by medical providers, little work has described appropriateness of prescribing by dentists. We assessed if antibiotics prescribed for prophylaxis prior to dental procedures were consistent with clinical guidelines.
Dr. Polsky[/caption]
David Polsky, MD, PhD
Dermatologist and Director of the Digmented Lesion Service
Mahrukh M. Syeda, MS
Research Associate
Ronald O. Perelman Department of Dermatology
NYU Langone Health
MedicalResearch.com: What is the background for this study?
Response: Several studies of metastatic melanoma patients have demonstrated that measuring circulating tumor DNA (ctDNA) associates with their disease burden and survival. Generally, patients with detectable pre-treatment ctDNA levels and/or detectable ctDNA at various time intervals after starting treatment have shorter survivals than patients with lower pre-treatment or on-treatment ctDNA levels. Studies have varied in their methods to detect ctDNA, the thresholds chosen to call a sample positive or negative, and the follow up time point for measurement, if any.
In this study, we examined pre-treatment and week 4 on-treatment plasma samples from patients enrolled in Combi-D, the Phase III, randomized, double-blind trial of the BRAF and MEK inhibitors Dabrafenib and Trametinib, which led to FDA approval of the combination therapy for patients with unresectable stage III/IV melanoma.
Only patients with BRAF V600E or V600K mutations identified from tumor genotyping were enrolled in the clinical trial.
Prof. I-Min Lee[/caption]
I-Min Lee, MD, ScD
Professor of Medicine, Harvard Medical School
Professor of Epidemiology
Harvard T.H. Chan School of Public Health
MedicalResearch.com: What is the background for this study?
Response: While we have many studies showing that physical activity is beneficial for health, there are few data on steps and health, particularly long-term health outcomes. An expert committee – the 2018 Physical Activity Guidelines Advisory Committee, which reviewed the scientific evidence to support the recently released Physical Activity Guidelines for Americans, 2nd edition – noted this (i.e., the relation between steps and health outcomes) to be a critical gap in knowledge, since many individuals are using wearables and monitoring their step counts.
We often hear the number 10,000 steps cited as a daily goal, but the basis for this number is unclear. It likely originated as a marketing tool: in 1965, the Yamasa Clock and Instrument Company, Japan sold a pedometer called “Manpo-kei” – “ten thousand steps meter” in Japanese.
For many older people, 10,000 steps/day can be a very daunting goal; thus, we wanted to investigate whether this was necessary for lower mortality rates in older women. Additionally, steps taken can be fast or slow, and there are no published studies on step intensity and long-term health outcomes. Note that walking pace and step intensity are not the same concept: walking pace gauges intensity when walking purposefully (e.g., for exercise or transportation), while step intensity assesses an overall best natural effort in our daily life.
Dr. Kim Chi[/caption]
Dr. Kim Chi. MD
Professor of Medicine
Medical Oncologist and Medical Director at BC Cancer – Vancouver
University of British Columbia,
Principal Investigator of the TITAN Study.
MedicalResearch.com: What is the background for this study?
Response: For more than 70 years, androgen deprivation therapy (ADT) has been the standard of care therapy for patients with metastatic prostate cancer. The Phase 3 TITAN study looked at adding apalutamide (®®®®) to ADT compared with placebo plus ADT in a broad group of patients with metastatic castration-sensitive prostate cancer (mCSPC), regardless of disease volume or prior docetaxel treatment history.
Metastatic castration-sensitive prostate cancer is prostate cancer that still responds to androgen deprivation therapy and has spread to other parts of the body. Patients with mCSPC tend to have a poor prognosis, with a median overall survival (OS) of less than five years, underscoring the need for new treatment options. The dual primary endpoints of this study were overall survival and radiographic progression-free survival (rPFS).
Dr. Garcia[/caption]
Erika Garcia, PhD, MPH
Postdoctoral Scholar
Division of Environmental Health
Department of Preventive Medicine
Keck School of Medicine
University of Southern California
Los Angeles, CA 90089-9237
MedicalResearch.com: What is the background for this study?
Response: It is known that air pollution can exacerbate pre-existing asthma, but what is not yet established is whether air pollution exposure contributes to the development of new cases of asthma. There is increasing scientific evidence supporting a role of air pollution in asthma development.
In this study we examined whether reductions in air pollution levels in Southern California were associated with subsequent reductions in rates of new-onset asthma in children. We separately evaluated four pollutants: nitrogen dioxide, ozone, coarse particulate matter (PM10), and fine particulate matter (PM2.5).
Dr. Jung Min Bae[/caption]
Jung Min Bae, MD, PhD
Associate Professor, Department of Dermatology
St. Vincent's Hospital
College of Medicine, The Catholic University of Korea
MedicalResearch.com: What is the background for this study?
Response: Vitiligo is a common chronic skin disease affecting 1% of the population, and it causes low self-esteem and social stigma. To date, there are no approved drugs for the treatment of vitiligo, even though growing evidence indicates favorable therapeutic responses of topical calcineurin inhibitors (TCIs) including tacrolimus and pimecrolimus.
In this study, we conducted a systematic review and meta-analysis of all relevant prospective studies (n = 46) and identified remarkable therapeutic responses of TCI monotherapy and TCI plus phototherapy for vitiligo.
Dr. Kaplan[/caption]
Steven A. Kaplan, M.D., FACS
Professor of Urology
Director, The Men's Health Program
Icahn School of Medicine at Mount Sinai
MedicalResearch.com: What is the background for this study?
Response: PLUS is the first large-scale trial conducted in North America and Europe specifically designed to study the effects of mirabegron in controlling residual symptoms of urinary urgency and frequency in men with benign prostatic hyperplasia (BPH) using common agents such as tamsulosin (Flomax).
We explored whether mirabegron (Myrbetriq), an agent approved for the treatment of overactive bladder (OAB), improved patient outcomes when added to tamsulosin. This was a randomized, double-blind, placebo-controlled, multi-center study enrolling 715 male patients 40 years of age and older.
Dr. Ziyad Al-Aly[/caption]
Ziyad Al-Aly, MD, FASN
Assistant Professor of Medicine
Director of the Clinical Epidemiology Center
Chief of Research and Education
Department of Veterans Affairs Health Care System
Saint Louis
MedicalResearch.com: What is the background for this study?
Response: In 2017, we published a paper showing increased risk of death associated with Proton-pump inhibitors (PPI) use. Following the publication of that 2017 paper, several key stakeholders including patients, doctors, research scientists, medical media folks, mainstream media folks, and others asked us: what do these people die from? Did you study causes of death attributable to PPI use? In the study published today, we developed a causal inference framework to answer this question.
Dr. Lu Qi[/caption]
Lu Qi, MD, PhD, FAHA MD, PhD, FAHA HCA Regents Distinguished Chair and Professor Director, Tulane University Obesity Research Center Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans, LA 70112
MedicalResearch.com: What is the background for this study? Response: There is evidence from previous experimental studies or cross-sectional analyses in humans linking glucosamine and a variety potentially protective effects such as improving lipids, inhibiting inflammation, and mimic a low-carb diet.
Dr. Zoz[/caption]
Donald Zoz, M.D.,
Senior associate director
Clinical Development & Medical Affairs
Boehringer Ingelheim Pharmaceuticals, Inc.
MedicalResearch.com: What is the background for this study? How does nintedanib differ from other treatments for SSc-ILD? What are the main findings?
Response: SENSCIS is a Phase III double-blind, randomized placebo-controlled trial that included 576 patients in 32 countries. It is the largest trial to have been conducted in patients with systemic sclerosis associated interstitial lung disease (SSc-ILD). The primary endpoint was the annual rate of decline in forced vital capacity (FVC) over 52 weeks. At the end of the 52-week trial, patients receiving nintedanib had an adjusted annual rate of decline in FVC (mL/year) of -52.4 with nintedanib versus -93.3 with placebo (absolute difference 41.0mL/year [95% CI 2.9, 79.0]; p=0.04). This corresponds to a relative difference of 44% reduction in lung function decline.
There are currently no approved treatments for SSc-ILD., BI conducted the SENSCIS study to evaluate in SSc-ILD patients the impact of nintedanib. Nintedanib, a selective tyrosine kinase inhibitor, is an antifibrotic agent.
Results of the study, which were published in The New England Journal of Medicine and presented at the American Thoracic Society (ATS) International Conference, showed that nintedanib slowed the loss of pulmonary function by 44% in patients with SSc-ILD relative to placebo, as measured by FVC over 52 weeks.
Dr. McKenzie[/caption]
Lara B. McKenzie, PhD, MA
Principal Investigator in the Center for Injury Research and Policy
Research Institute at Nationwide Children's Hospital
Associate Professor in the Department of Pediatrics
College of Medicine and the Division of Epidemiology
College of Public Health at The Ohio State University
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Social media and other online tools have changed the way people seek and share health information. Recent consumer interest in natural, organic, and ethically-made personal care products has led to an increase of shared recipes for homemade products including sunscreen.
The study found that nearly all (95%) pins, or bookmarks, for homemade sunscreen positively portrayed the effectiveness of homemade sunscreens and most (68%) recommended recipes for homemade sunscreens that offered insufficient UV radiation protection. Sun Protection Factor (SPF) claims were made in a third of pins with a range of SPF 2 to SPF 50. This is concerning because the ingredients recommended in homemade sunscreen pins offer minimal scientifically proven broad-spectrum protection from UV radiation yet are widely shared and promoted as safe alternatives to commercial sunscreens on Pinterest.
Homemade sunscreen products are risky because they are not regulated or tested for efficacy like commercial sunscreens. When you make it yourself, you don’t know if it’s safe or effective. With rising skin cancer rates, the use of effective broadband sunscreen is critical to protect the skin from UV radiation and reduce incidence of skin cancer.
Dr. Povsic[/caption]
Thomas J. Povsic, MD, PhD
Interventional Cardiologist
Duke Clinical Research Institute
Duke University School of Medicine
Durham, North Carolina
MedicalResearch.com: What is the background for this study?
Response: The background for this study is that it is unknown how mandatory reporting of CYP2C19 metabolizer status affects how doctors treat patients or to what degree provision of this information would affect choice of a P2Y12 inhibitor within a clinical trial.
As part of the GEMINI-ACS trial, all patients underwent CYP2C19 metabolizer testing. This trial enrolled patients with a recent acute coronary syndrome and randomized them to aspirin or a low dose of rivaroxaban. All patients were also to be treated with ticagrelor or clopidogrel, which was at the discretion of the investigator. Investigators were given information regarding the CYP2C19 metabolizer status about a week after randomization. Importantly prior to randomization, all investigators were asked how they expected to use this information, and then we followed what they actually did.
Ashraf Habib, MD
Chief of the Division of Women’s Anesthesia
Professor of Anesthesiology
Duke University
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: This was a multicenter study conducted in 13 clinical sites in the United States enrolling patients undergoing elective Cesarean-section and receiving spinal anesthesia. 186 patients were enrolled and randomized to receive EXPAREL, a long-acting, non-opioid option to manage postsurgical pain, administered via transversus abdominis plane (TAP) field block, mixed with plain bupivacaine or TAP block with plain bupivacaine alone. A TAP block numbs the nerves that supply the abdominal wall. We presented the data at the 51st Annual Meeting of the Society of Obstetric Anesthesia and Perinatology (SOAP) in Phoenix, AZ.
We aimed to collect clinical evidence that a multimodal postsurgical pain regimen using a TAP block with EXPAREL (bupivacaine liposome injectable suspension) together with regularly scheduled acetaminophen and nonsteroidal anti-inflammatory drugs (NSAIDs) could reduce opioid consumption more so than a standard multimodal pain control approach that combines TAP block with standard bupivacaine, regularly scheduled acetaminophen, and NSAIDs.