Masha Zhdanava
Education
M.A., economics, Dalhousie University, Halifax; B.A., economics, European Humanities University, Minsk
Summary of Experience
Ms. Zhdanava specializes in the application of statistical methods to the field of health economics and outcomes research (HEOR). Her expertise includes burden-of-illness analyses, treatment effectiveness and treatment pattern analyses, disease epidemiology studies, and cost models. Ms. Zhdanava has worked with a variety of data, including health insurance claims, electronic medical records, and data collected from chart reviews and surveys. Her research in a wide range of therapeutic areas – including depression, schizophrenia, generalized myasthenia gravis, psoriasis, inflammatory bowel disease, respiratory diseases, and oncology – has been presented at conferences and published in peer-reviewed journals such as The Journal of Clinical Psychiatry, the Journal of Affective Disorders, Pharmacoeconomics, BMC Psychiatry, Clinical Therapeutics, the Journal of Managed Care & Specialty Pharmacy, Current Medical Research and Opinion, and the Journal of Medical Economics. Ms. Zhdanava is a member of the editorial board for Current Medical Research and Opinion.
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Health Care Resource Use and Medical Costs Among Patients With Major Depressive Disorder and Acute Suicidal Ideation or Behavior Initiated on Esketamine Nasal Spray or Traditional Treatments in the United States
Clinical Therapeutics, 2025
2025Harding L, Zhdanava M, Teeple A, Shah A, Boonmak P, Pilon D, Joshi K
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Real-World Maintenance Phase Persistence on Ustekinumab and Adalimumab in Ulcerative Colitis
Patient Preference and Adherence, 2024
2024Zhdanava M, Kachroo S, Shah A, Ding Z, Lefebvre P, Zhao R, Kerner C, Pilon D
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Burden of chronic corticosteroid use among patients with ulcerative colitis initiated on targeted treatment or conventional therapy in the United States
Journal of Managed Care & Specialty Pharmacy, 2024
2024Zhdanava M, Zhao R, Manceur AM, Ding Z, Boudreau J, Kachroo S, Kerner C, Izanec J, Pilon D
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Understanding profiles of patients with treatment-resistant depression by stringency of health plan prior authorization criteria for approval of esketamine nasal spray
Current Medical Research and Opinion, 2024
2024Harding L, Zhdanava M, Shah A, Pesa J, Totev TI, Tardif-Samson A, Pilon D, Joshi K
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Treatment Patterns, Acute Healthcare Resource Use, and Costs of Patients with Treatment-Resistant Depression Completing Induction Phase of Esketamine in the United States
Drugs - Real World Outcomes, 2024
2024Harding L, Joshi K, Zhdanava M, Shah A, Voegel A, Chen C, Pilon D
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Predictors of High Healthcare Cost Among Patients with Generalized Myasthenia Gravis: A Combined Machine Learning and Regression Approach from a US Payer Perspective
Applied Health Economics and Health Policy, 2024
2024Zhdanava M, Pesa J, Boonmak P, Schwartzbein S, Cai Q, Pilon D, Choudhry Z, Lafeuille MH, Lefebvre P, Souayah N
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Comparison of real-world healthcare resource utilization among advanced therapy-naïve and advanced therapy-experienced patients with ulcerative colitis initiated on ustekinumab or vedolizumab
Current Medical Research and Opinion, 2024
2024Zhdanava M, Kachroo S, Boonmak P, Burbage S, Shah A, Korsiak J, Patrick Lefebvre P, Kerner C, Pilon D
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Real-World Long-Term Persistence and Surgical Procedure-Free Period Among Bio-naïve Patients with Crohn's Disease and Fistula Initiated on Ustekinumab
Advances in Therapy, 2024
2024Zhdanava M, Kachroo S, Boonmak P, Burbage S, Shah A, Lefebvre P, Kerner C, Pilon D
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Real-World Treatment Persistence Among Advanced Therapy-Naïve or -Experienced Patients with Ulcerative Colitis Initiated on Ustekinumab or Adalimumab
Advances in Therapy, 2024
2024Zhdanava M, Kachroo S, Boonmak P, Burbage S, Shah A, Korsiak J, Lefebvre P, Kerner C, Pilon D
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Economic Burden Associated With Nasal Polyposis Recurrence Among Commercially Insured Patients in the United States
Otolaryngology–Head and Neck Surgery, 2023
2023Zhdanava M, Ndife B, Pilon D, Rossi C, Vermette-Laforme M, Lefebvre P, Suh JD
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Ischemic Stroke and Systemic Embolism among One-and-Done Direct Oral Anticoagulant Users with Non-Valvular Atrial Fibrillation
Advances in Therapy, 2023
2023Alberts M, Zhdanava M, Pilon D, Caron-Lapointe G, Lefebvre P, Bookhart B, Kharat A
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Treatment Patterns, Healthcare Utilization, and Costs of Patients with Treatment-Resistant Depression Initiated on Esketamine Intranasal Spray and Covered by Us Commercial Health Plans
Journal of Medical Economics, 2023
2023Joshi K, Pilon D, Shah A, Holiday C, Karkare S, Zhdanava M
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Venous Thromboembolism Recurrence among One-and-Done Direct Oral Anticoagulant Users: A Retrospective Longitudinal Study
International Journal of Clinical Pharmacy, 2023
2023Alberts M, Zhdanava M, Pilon D, Caron-Lapointe G, Lefebvre P, Bookhart B, Kharat A
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Esketamine Nasal Spray for Major Depressive Disorder with Acute Suicidal Ideation or Behavior: Description of Treatment Access, Utilization, and Claims-Based Outcomes in the United States
Journal of Medical Economics, 2023
2023Zhdanava M, Teeple A, Pilon D, Shah A, Caron-Lapointe G, Joshi K
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Treatment Persistence among Bio-Naïve Patients with Crohn's Disease Initiated on Ustekinumab or Adalimumab
Current Medical Research and Opinion, 2023
2023Zhdanava M, Ding Z, Manceur AM, Muser E, Lefebvre P, Holiday C, Lafeuille MH, Pilon D
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Long-term persistence and other treatment patterns among bio-naïve patients with Crohn's disease treated with ustekinumab or adalimumab
Current Medical Research and Opinion, 2023
2023Zhdanava M, Ding Z, Manceur AM, Zhao R, Holiday C, Kachroo S, Izanec J, Pilon D
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Persistence and Dose Escalation During Maintenance Phase and Use of Nonbiologic Medications Among Patients With Ulcerative Colitis Initiated on Ustekinumab in the United States
Crohn's & Colitis 360, 2023
2023Zhdanava M, Zhao R, Manceur AM, Kachroo S, Lefebvre P, Pilon D
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Ischemic stroke and systemic embolism among patients with non-valvular atrial fibrillation who abandon oral anticoagulant therapy
Current Medical Research and Opinion, 2023
2023Alberts MJ, Zhdanava M, Pilon D, Caron-Lapointe G, Lefebvre P, Bookhart B, Kharat A
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Access and real-world use patterns of esketamine nasal spray among patients with treatment-resistant depression covered by private or public insurance
Current Medical Research and Opinion, 2023
2023Teeple A, Zhdanava M, Pilon D, Caron-Lapointe G, Lefebvre P, Joshi K
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Persistence and other treatment patterns among bio-experienced patients with Crohn's disease initiated on ustekinumab or adalimumab
Journal of Managed Care & Specialty Pharmacy, 2023
2023Zhdanava M, Zhao R, Manceur AM, Ding Z, Kachroo S, Holiday C, Lefebvre P, Pilon D
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Persistence Among Patients with Crohn Disease Previously Treated with an Anti-tumor Necrosis Factor Inhibitor and Switching or Cycling to Another Biologic Agent
Clinical Therapeutics, 2023
2023Zhdanava M, Kachroo S, Manceur AM, Ding Z, Holiday C, Zhao R, Godwin B, Pilon D
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Chronic corticosteroid use is associated with substantial clinical and economic burden in patients with Crohn's Disease initiated on biologic or conventional therapies in the US: A retrospective study
Journal of American Pharmacists Association, 2023
2023Zhdanava M, Zhao R, Manceur AM, Ding Z, Boudreau J, Kachroo S, Kerner C, Izanec J, Pilon D
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Economic Burden of Commercially Insured Patients with Major Depressive Disorder and Acute Suicidal Ideation or Behavior in the United States
Journal of Clinical Psychiatry, 2022
2022Pilon D, Neslusan C, Zhdanava M, Sheehan J, Joshi K, Morrison L, Rossi C, Lefebvre P, Greenberg P
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Characteristics of Real-World Commercially Insured Patients With Treatment-Resistant Depression Initiated on Esketamine Nasal Spray or Conventional Therapies in the United States
Clinical Therapeutics, 2022
2022Karkare S, Zhdanava M, Pilon D, Nash AI, Morrison L, Shah A, Lefebvre P, Joshi K
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Understanding the Health System Conditions Affecting the Use of Long-Acting Injectable Antipsychotics in the Treatment of Schizophrenia in Clinical Practice: A US Healthcare Provider Survey
Neuropsychiatric Disease and Treatment, 2022
2022Zhdanava M, Starr HL, Lefebvre P, Totev TI, Shah A, Sheng K, Pilon D
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Excess healthcare resource utilization and healthcare costs among privately and publicly insured patients with major depressive disorder and acute suicidal ideation or behavior in the United States
Journal of Affective Disorders, 2022
2022Zhdanava M, Voelker J, Pilon D, Joshi K, Morrison L, Sheehan JJ, Vermette-Laforme M, Lefebvre P, Citrome L
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Cluster Analysis of Care Pathways in Adults with Major Depressive Disorder with Acute Suicidal Ideation or Behavior in the USA
PharmacoEconomics (2021) 39:707–720
2021Zhdanava M, Voelker J, Pilon D, Cornwall T, Morrison L, Vermette‑Laforme M, Lefebvre P, Nash A, Joshi K, Neslusan C
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The Prevalence and National Burden of Treatment-Resistant Depression and Major Depressive Disorder in the United States
Journal of Clinical Psychiatry, 2021
2021Zhdanava M, Pilon D, Ghelerter I, Chow W, Joshi K, Lefebvre P, Sheehan JJ
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Special Issue of PharmacoEconomics on Major Depressive Disorders
PharmacoEconomics (2021) 39:617
2021 -
Prevalence of Pre-existing Conditions Relevant for Adverse Events and Potential Drug-Drug Interactions Associated with Augmentation Therapies Among Patients with Treatment-Resistant Depression
Advances in Therapy, 2021
2021Zhdanava M, Karkare S, Pilon D, Joshi K, Rossi C, Morrison L, Sheehan J, Lefebvre P, Lopena O, Citrome L
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Economic burden in Medicaid beneficiaries with recently relapsed schizophrenia or with uncontrolled symptoms of schizophrenia not adherent to antipsychotics
Journal of Managed Care & Specialty Pharmacy, 2021
2021Pilon D, Patel C, Lafeuille MH, Zhdanava M, Lin D, Côté-Sergent A, Rossi C, Lefebvre P, Joshi K
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Prevalence, incidence and economic burden of schizophrenia among Medicaid beneficiaries
Current Medical Research and Opinion, 2021
2021Pilon D, Patel C, Lafeuille MH, Zhdanava M, Lin D, Côté-Sergent A, Rossi C, Joshi K, Lefebvre P
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Health care resource use, short-term disability days, and costs associated with states of persistence on antidepressant lines of therapy
Journal of Medical Economics, 2021
2021Pilon D, Karkare S, Zhdanava M, Sheehan JJ, Côté-Sergent A, Shah A, Lopena OJ, Lefebvre P, Joshi K, Citrome L
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Economic burden of treatment-resistant depression in privately insured US patients with co-occurring anxiety disorder and/or substance use disorder
Current Medical Research and Opinion, 2021
2021Zhdanava M, Kuvadia H, Joshi K, Daly E, Pilon D, Rossi C, Morrison L, Lefebvre P, Nelson C
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Economic Burden of Treatment-Resistant Depression in Privately Insured U.S. Patients with Physical Conditions
Journal of Managed Care & Specialty Pharmacy, 2020
2020Zhdanava M, Kuvadia H, Joshi K, Daly E, Pilon D, Rossi C, Morrison L, Lefebvre P, Nelson C
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Prevalence of Potential Drug-Drug Interactions and Pre-existing Conditions for Adverse Events in Augmentation Therapies Among Patients With Treatment-resistant Depression
Psych Congress, 2020
2020Zhdanava M, Karkare S, Pilon D, Joshi K, Rossi C, Morrison L, Sheehan J, Lefebvre P, Lopena O, Citrome L
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Real-world outcomes post-transition to once-every-3-months paliperidone palmitate in patients with schizophrenia within US commercial plans
Current Medical Research and Opinion, January 5, 2019
2019Emond B, El Khoury AC, Patel C, Pilon D, Morrison L, Zhdanava M, Lefebvre P, Tandon N, Joshi K
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Is clinician impression of depression symptom severity associated with incremental economic burden in privately insured US patients with treatment resistant depression?
Journal of Affective Disorders, 2019
2019Pilon D, Sheehan JJ, Szukis H, Morrison L, Zhdanava M, Lefebvre P, Joshi K
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October 23, 2023
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March 2, 2023
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April 12, 2022