Accel Research – St. Petersburg-Largo
About This Site
Accel Research – Largo provides patients in Largo, Florida with access to clinical trials focused on advancing new and innovative treatment options. Established in 1998, this modern 8,460-square-foot facility has a long-standing history of excellence in clinical research and expanded its capabilities further by joining the Alcanza Clinical Research Network.
Our experienced team creates a welcoming, patient-centered environment where your safety, comfort, and privacy are always the top priority. Led by our a board-certified physicians with over 20 years of experience, we partner with leading pharmaceutical and biotechnology companies to offer clinical trials across a wide range of health conditions—including vaccines, psychiatry, CNS disorders, and internal medicine—bringing innovative research opportunities to the Largo community.
Conditions at this location
Select a condition to learn more about it.
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Adult Attention-Deficit/Hyperactivity Disorder (ADHD)
Adult ADHD can make it harder to focus, stay organized, manage time, or control impulses. With the right care and support, many people can better manage symptoms and daily responsibilities.
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Atherosclerotic Cardiovascular Disease (ASCVD)
Atherosclerotic cardiovascular disease happens when plaque builds up inside the arteries and limits blood flow. This can raise the risk of heart attack, stroke, and other heart-related health problems.
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Bipolar Disorder
Bipolar disorder is a mental health condition that causes major changes in mood, energy, and activity. A person may experience periods of depression as well as periods of unusually high energy or mood.
- Cannabis Use Disorder
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Cannabis Withdrawal
People who regularly use cannabis may have withdrawal symptoms when they reduce or stop using it. These may include irritability, anxiety, sleep problems, appetite changes, or changes in mood.
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COVID-19 Treatment
COVID-19 is a respiratory illness that can cause mild to serious symptoms. Researchers continue to study treatments that may reduce symptoms, complications, and longer-lasting effects.
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Diabetic Neuropathy
Diabetic neuropathy is nerve damage linked to high blood sugar over time. It may cause pain, tingling, numbness, or weakness, especially in the feet and legs.
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General Anxiety Disorder (GAD)
Generalized anxiety disorder can cause ongoing worry that is difficult to control. It may also lead to restlessness, tiredness, irritability, or trouble concentrating.
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Healthy Volunteer
Healthy volunteer studies include people who do not have the condition being studied. Their participation helps researchers learn more about the safety, dosing, and effects of potential treatments.
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High Cholesterol/Hypercholesterolemia/Hyperlipidemoia
High cholesterol means there is too much cholesterol in the blood. Over time, it can contribute to buildup in the arteries, so managing it is an important part of heart health.
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Hypothyroidism
Hypothyroidism happens when the thyroid does not make enough hormones. It may cause tiredness, weight changes, sensitivity to cold, or a slower feeling in the body.
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Influenza Vaccine
Flu vaccines help protect against seasonal influenza and its complications. Researchers continue to study new vaccine options that may offer broader or longer-lasting protection.
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Major Depressive Disorder (MDD)
Major depressive disorder can cause ongoing sadness, loss of interest, low energy, or changes in sleep and appetite. It can affect everyday life, but care and support are available.
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RSV Vaccine
RSV is a respiratory virus that can cause serious illness, especially in infants, older adults, and people with certain health conditions. RSV vaccines are designed to lower the risk of severe illness.
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Social Anxiety Disorder
Social anxiety disorder causes strong fear or worry in social situations, especially when a person feels watched or judged. It can affect school, work, relationships, and everyday activities.
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Treatment Resistant Depression
Treatment-resistant depression means depression symptoms have not improved enough with standard treatments. Researchers are studying new options for people who continue to experience symptoms.
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Type 2 Diabetes
Type 2 diabetes affects how the body uses insulin and manages blood sugar. Ongoing care can help control blood sugar and lower the risk of serious health problems.
Providers at this location
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Rosario B. Hidalgo
M.D.
Dr. Rosario Hidalgo is a principal investigator and sub-investigator at Accel Research Sites’ St. Petersburg-Largo location. She joined Accel Research Sites in 2021. She has been conducting CNS clinical trials since 1998. Her areas of expertise include mood disorders (bipolar disorder, depression, TRD), all the anxiety disorders, PTSD, schizophrenia and others.
Dr. Hidalgo has clinical research experience both at academic institutions (Duke University 1998-2005 and University of South Florida 2006-2012) as well as in private research sites. At USF she rose to the position of director of the Depression and Anxiety Research Institute (DARI) from 2010 to 2012. Since 2012, she has been the medical director of Tampa Comprehensive Psychiatry, LLC and continued to be involved in clinical research in private sites.
Dr. Hidalgo obtained her medical degree at the University of Buenos Aires in Argentina and completed her general psychiatry residency at Duke University with a fellowship in clinical psychopharmacology with the Duke-GlaxoSmithKline program. Dr. Hidalgo is board certified by the American Board of Psychiatry and Neurology (ABPN), a fellow of the American Psychiatric Association and a member of the Florida Psychiatric Association. She has over 16 publications in peer-reviewed journals and is fluent in both English and Spanish. Dr. Hidalgo volunteers at the Judeo Christian Health Clinic providing free psychiatric care to the working poor of Tampa Bay.
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Hiten Upadhyay
M.D., F.A.A.E.M
Dr. Hiten Upadhyay is a principal investigator at Accel Research Sites St. Petersburg location. Dr. Upadhyay has been practicing emergency medicine for more than 20 years and has served as a principal investigator with Accel Research Sites since 2021. He has completed several COVID-19 clinical trials as a principal investigator, with expertise in emergency and general medicine.
Dr. Upadhyay is currently a fellow of the American Academy of Emergency Medicine. He is board certified in emergency medicine with the ABEM. He graduated from Wayne State School of Medicine with a doctor’s degree in medicine in 1997 before completing his residency in emergency medicine at Wayne State in 2000. Dr. Upadhyay currently has credentials at four local hospitals as an emergency department staff physician or staff physician in the trauma department.
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Olga Novikov-King
M.D.
Olga Novikov-King
Dr. Olga Novikov-King is a board-certified psychiatrist with an MD-PhD from Boston University School of Medicine and a strong background in translational research and clinical care. She currently serves as an Investigator at Accel Research Sites in St. Petersburg–Largo, FL, while maintaining active clinical practice in both in-person and telepsychiatry settings. Dr. Novikov-King has experience managing diverse psychiatric populations across inpatient and outpatient environments, supporting robust patient recruitment and retention. She is licensed in Massachusetts and Florida, GCP certified, and holds a PCCS-MAT Buprenorphine Waiver, enabling engagement with substance use disorder populations. Her research experience includes multiple peer-reviewed publications and academic presentations, reflecting a solid foundation in clinical and scientific rigor. Dr. Novikov-King is well-positioned to successfully execute CNS clinical trials with high-quality oversight and patient-centered care.
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