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COUNTRIES  OF  PRESENCE

Hungary

Serbia

Croatia

Slovenia

Bosnia and Herzegovina

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Lettonia

Lituania

Estonia

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Kazakistan

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viacrystal connects you with experts

CAMILLA JONES

Doctor of psychiatry,

Hungary

"As a Principal Investigator, my priority is ensuring the highest standards of clinical research while keeping patient safety at the core. Every trial is an opportunity to advance medical science and bring innovative treatments to those who need them most"

Doctor in White Coat
Confident Female Specialist

Dr. IVANA MARIĆ

Psychiatrist, Croatia

EDUCATION:

  • University of Zagreb, Faculty of Medicine

CERTIFICATES:

  • Psychiatry

  • Cognitive Behavioral Therapy (CBT)

PROFESSIONAL EXPERIENCE:

  • 2001 - Present, Clinical Centre of Croatia

CLINICAL TRIAL EXPERIENCE:

  • > 8 years

  • Depression

VIACRYSTAL FEEDBACK:

  • Dr. Ivana Marić combines strong clinical insight with compassion and clear communication. Her extensive experience in psychiatric clinical trials and her structured approach to protocol adherence contribute greatly to the quality and reliability of study outcomes.

  • Schizophrenia

  • Bipolar Disorder

Doctor in Hospital Hallway

Dr. ANDRÁS NAGY

Neurologist, Hungary

EDUCATION:

  • Semmelweis University, Budapest

CERTIFICATES:

  • Neurology

  • Neuropsycology

PROFESSIONAL EXPERIENCE:

  • 2009 – Present, Institute of Clinical Neurosciences, Budapest

CLINICAL TRIAL EXPERIENCE:

  • > 10 years

  • Multiple sclerosis

VIACRYSTAL FEEDBACK:

  • Dr. András Nagy is known for his precise diagnostic skills and steady leadership in clinical settings. His deep understanding of neurological conditions and commitment to high-quality research make him a trusted expert in the field of neuroscience trials.

  • Parkinson's Disease

  • Epilepsy

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Dr. DRAGANA IGNJATOVIĆ RISTIĆ

Psychiatrist, Serbia

EDUCATION:

  • University of Belgrade, Faculty of Medicine 

CERTIFICATES:

  • Bioethics

  • Palliative medicine

PROFESSIONAL EXPERIENCE:

  • 2005 – Until now, Head of Psychiatric Emergency Department

CLINICAL TRIAL EXPERIENCE:

  • Major depression disorder

  • Schizophrenia

VIACRYSTAL FEEDBACK:

  • Dr. Ignjatović Ristić is a highly experienced psychiatrist with extensive expertise in forensic psychiatry, clinical research, and academic leadership. Her proven track record as a PI in multiple trials demonstrates strong compliance with GCP and excellence in study execution. She is a valuable collaborator, combining scientific rigor with practical insight, making her a trusted partner for complex clinical research projects.

  • Forensic psychiatry

  • Systemic family therapy

  • Bipolar disorder

  • Alzheimer's disease

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Dr. IVAN ZELJKOVIĆ

Cardiologist, Croatia

EDUCATION:

  • University of Zagreb, School of Medicine 

CERTIFICATES:

  • Interventional electrophysiology, cardiac electrical stimulation and resynchronization therapy 

PROFESSIONAL EXPERIENCE:

  • 2023 – Until now, Cardiology Consultant & Head of EP Laboratory, Dubrava University Hospital

CLINICAL TRIAL EXPERIENCE:

  • TBC

VIACRYSTAL FEEDBACK:

  • Dr. Ivan Zeljković is a leading cardiologist and cardiac electrophysiologist with strong academic and clinical credentials. His leadership of the EP Laboratory at Dubrava University Hospital, highlights his operational excellence and scientific rigor. He is a highly reliable expert for clinical research in cardiac rhythm disorders and interventional cardiology. 

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Prof. ROK ÄŒIVLJAK

Infectious diseases specialist, Croatia

EDUCATION:

  • University of Zagreb School of Medicine

CERTIFICATES:

  • Critical care 

  • Respiratory tract infectious 

PROFESSIONAL EXPERIENCE:

  • 2010 – Until now, Head of respiratory tract infectious department,  Dr. Fran Mihaljevic University Hospital for Infectious Diseases 

CLINICAL TRIAL EXPERIENCE:

  • TBC

VIACRYSTAL FEEDBACK:

  • Prof. Rok ÄŒivljak is a leading infectious diseases specialist with deep expertise in respiratory tract infections and paediatric infectious diseases. He has served as investigator in multiple European and international research projects. Leadership roles in national and international medical societies, combined with a prolific academic output, make Prof. ÄŒivljak a highly valuable partner for complex infectious disease studies. 

  • Paediatric infectious diseases 

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Dr. AIDA PIDRO GADZO

Ophthalmologist, Bosnia & Herzegovina

EDUCATION:

  • University of Sarajevo, Faculty of Medicine 

TRAINING:

  • Uveitis case challenge 

  • Oculoplastic and reconstructive surgery 

PROFESSIONAL EXPERIENCE:

  • 2023 – Until now, Ophthalmologist at General Hospital "Prim. Dr. Abdulah Nakaš" 

CLINICAL TRIAL EXPERIENCE:

  • TBC 

VIACRYSTAL FEEDBACK:

  • Dr. Aida Pidro Gadzo combines strong clinical expertise in ophthalmology with advanced training in healthcare quality management. Her experience spans complex surgical procedures in oculoplastics, cataract surgery, and medical retina, complemented by academic achievements and active participation in international conferences. Her precision, adaptability, and dedication to patient care make her a valuable contributor to multidisciplinary clinical research. 

  • Uveal melanoma 

  • Cataract Surgery 

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Dr. NIKICA GABRIĆ

Ophthalmologist, Croatia

EDUCATION:

  • University of Zagreb, Faculty of Medicine 

TRAINING:

  • Cataract surgery 

  • Glaucoma mini shunt surgery

PROFESSIONAL EXPERIENCE:

  • 2002 – Until now, Founder & Medical Director, Ophthalmologist at Svjetlost Eye Clinic, Zagreb

CLINICAL TRIAL EXPERIENCE:

  • TBC 

VIACRYSTAL FEEDBACK:

  • Dr. Nikica Gabrić is an internationally recognized leader in ophthalmology with decades of experience in advanced anterior segment surgery and innovation. His work as Principal Investigator and collaborator on EU and multicenter clinical projects—ranging from corneal transplantation to intraocular lens development—demonstrates both clinical excellence and research leadership. His track record of scientific contributions, surgical expertise, and successful project execution positions him as a highly valuable partner for complex clinical studies.  

  • LASIK surgery 

  • Trabeculectomy 

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Dr. VIOLETA SLAVKOVIĆ

Psychiatrist, Serbia

EDUCATION:

  • Faculty of Medicine, University of Niš 

TRAINING:

  • Neuropsychopharmacology 

  • Clinical Neurophysiology with Epileptology 

  • Psychiatry with Medical Psychology 

PROFESSIONAL EXPERIENCE:

  • Head of Department for Affective, Anxiety, Organic, and Generative Disorders, Clinic of Psychiatry, University Clinical Center Niš 

CLINICAL TRIAL EXPERIENCE:

  • Schizophrenia 

VIACRYSTAL FEEDBACK:

  • Dr. Violeta Slavković is a psychiatrist with long-standing clinical and academic experience, combining leadership in patient care with active involvement in international trials. She is recognized for her commitment to advancing psychiatric research and for her collaborative approach, which ensures both scientific quality and patient-centered outcomes. 

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Dr. MARIO BRADVICA

Ophthalmologist, Croatia

EDUCATION:

  • University of Zagreb, Faculty of medicine

PROFESSIONAL EXPERIENCE:

  • Assistant Professor & Ophthalmologist, Clinical Hospital Center Osijek, Ophthalmology Clinic

CLINICAL TRIAL EXPERIENCE:

  • Neovascular Age-related Macular Degeneration 

  • Neuromyelitis optica  

  • Neuromyelitis optica spectrum disorder 

  • Retinopathy in prematurely born infants 

VIACRYSTAL FEEDBACK:

Dr. Mario Bradvica combines deep clinical expertise in ophthalmology with strong academic credentials and leadership as a Principal Investigator. His proven record highlights both versatility and dedication to advancing patient care. Reliability, scientific rigor, and long-term commitment make Dr. Bradvica a valuable collaborator for high-standard clinical research. 

Éva Szabó

Dr. ÉVA SZABÓ

Dermatologist & Surgeon, Hungary

EDUCATION:

  • University of Debrecen

CERTIFICATES:

  • Dermatology

  • Surgery

PROFESSIONAL EXPERIENCE:

  • 1990 - Until now, University of Debrecen

CLINICAL TRIAL EXPERIENCE:

  • > 10 years

  • Diabetic foot infection

VIACRYSTAL FEEDBACK:

Dr. Szabó acts as a Principal Investigator in many dermatology studies. She can coordinate cross-functional teams and is able to successfully enroll patients in very complex studies. Dr. Szabó is one of the leading dermatologists at Debrecen University Clinic; her responsiveness and professionalism are outstanding.

  • Skin and soft tissue infections

  • Cardiovascular disease

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Dr. OSMAN SÜTCÜOÄžLU

Oncologist, Türkiye

EDUCATION:

  • UludaÄŸ University, Faculty of Medicine 

CERTIFICATES:

  • Medical oncology 

PROFESSIONAL EXPERIENCE:

  • Gazi University School of Medicine 

CLINICAL TRIAL EXPERIENCE:

  • TBC

VIACRYSTAL FEEDBACK:

Dr. Osman SütcüoÄŸlu is a highly engaged member of our Expert Network, bringing extensive experience in medical, thoracic, and immuno-oncology. His involvement as a sub-investigator and lead in academic trials, combined with strong publication record and teaching activities, makes him a valuable contributor to advancing clinical research in Türkiye.

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Dr. GORANA KRSTOVIĆ

Pulmonologist, Bosnia & Herzegovina

EDUCATION:

  • University Sarajevo, Faculty of Medicine 

CERTIFICATES:

  • PAL 

  • Bronchoscopy 

  • Noninvasive Ventilation 

  • GCP

PROFESSIONAL EXPERIENCE:

  • Health Center of Canton Sarajevo, Ilidža Branch/Unit 

CLINICAL TRIAL EXPERIENCE:

  • TBC

VIACRYSTAL FEEDBACK:

Dr. Gorana Krstović is a highly experienced pulmonologist and pneumoftiziologist with over 15 years of clinical practice in Bosnia and Herzegovina. She demonstrates strong expertise in respiratory medicine, including COPD, TB, and post-Covid care, supported by a Master of Medical Sciences degree.  Dr. Krstović also contributes to the broader medical community through teaching, protocol development, and involvement in crisis management and vaccination initiatives. 

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Prof. UMUT DEMIRCI

Oncologist, Türkiye

EDUCATION:

  • Gazi University Faculty of Medicine 

  • Üsküdar University Faculty of Medicine 

  • MD Anderson Cancer Center 

CERTIFICATES:

  • GCP 

  • IATA

PROFESSIONAL EXPERIENCE:

  • Memorial Ankara Hospital 

CLINICAL TRIAL EXPERIENCE:

  • Lung cancer 

  • Breast cancer 

  • Melanoma

  • Gastrointestinal Oncology

VIACRYSTAL FEEDBACK:

Dr. Umut Demirci stands out as a highly experienced oncology investigator with extensive involvement in Phase II–III international clinical trials across multiple solid tumor indications. His track record demonstrates not only scientific competence but also strong operational leadership at site level. What makes Dr. Demirci particularly valuable is his deep regional expertise. Türkiye is rapidly emerging as a strategically important region for oncology clinical research. 

  • Genitourinary Oncology

  • Ovarian

  • Head and neck Cancer

  • Solid tumors 

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Dr. DMITRIY TYO

Cardiologist, Kazakhstan

EDUCATION:

  • Karaganda Medical University, Kazakhstan 

TRAINING:

  • Organization of Care, Psychodiagnostics and Psychocorrection in Clinical Suicidology 

  • Issues of Narcological Examination 

PROFESSIONAL EXPERIENCE:

  • Karaganda Medical University 

  • Regional Clinical Hospital named after H. Zh. Makazhanov, Karaganda

PUBLICATION TOPICS:

  • Suicidal behavior

  • Neurobiological foundations of suicidality

  • Schizophrenia: relapse rates and cognitive impairments

VIACRYSTAL FEEDBACK:

Dr. Akmaral Makhanova, a psychotherapist from Kazakhstan, represents a largely untapped region for clinical trials. She is a co-author of several publications on suicidal behavior and schizophrenia, bringing valuable expertise in these critical areas. Having an expert like Dr Makhanova ready to share insights in this region is extremely valuable for advancing clinical research. 

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Prof. Hakan ÖzdoÄŸu

Hematologist, Türkiye

EDUCATION:

  • Hacettepe University, Faculty of Medicine Ankara, Türkiye 

QUALIFICATIONS:

  • Bone marrow transplantation 

  • Cellular therapy 

  • Endothelial progenitor cells and mesenchymal stem cells 

  • Sickle cell disease 

PROFESSIONAL EXPERIENCE:

  • Baskent University Hospital Department of Hematology, Yuregir, Adana, Türkiye

CLINICAL TRIAL EXPERIENCE:

  • INFORMATION REQUIRED

VIACRYSTAL FEEDBACK:

Prof. Hakan ÖzdoÄŸu has extensive experience and expertise in hematology, particularly in bone marrow transplantation and cellular therapies. Viacrystal is very grateful to have the opportunity to connect with such a highly skilled professional from Türkiye, a country with high potential for clinical trials. The knowledge and clinical insights of Prof. ÖzdoÄŸu would be invaluable for advancing clinical research.

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Dr. KONSTANTIN DATSKO

Psychiatrist / Psychotherapist, Kazakhstan

EDUCATION:

  • Karaganda Medical University, Kazakhstan

CERTIFICATES:

  • Crisis Psychotherapy and Counseling, Addictology 

  • Cognitive Behavioral Therapy

PROFESSIONAL EXPERIENCE:

  • Youth Health Center 

  • Student Polyclinic No. 1

PUBLICATION TOPICS:

  • Study of family structure and family history in patients with substance use disorders 

  • Neurorehabilitation of Children with Early Childhood Autism 

  • Modern Trends in the Development of Science and the Global Community in the Era of Digitalization 

VIACRYSTAL FEEDBACK:

Dr. Konstantin Datsko represents a new generation of psychiatric specialists in Central Asia, bringing valuable regional insight from Kazakhstan. His clinical work is strongly focused on young populations, particularly through his role as Head of the Youth Health Center, where he addresses mental health challenges among adolescents and students. This experience positions Dr. Konstantin Datsko as a meaningful contributor on addiction prevention, youth psychiatry, and behavioral health trends. 

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Prof. Dr. MARINA ŠAGUD

Psychiatrist, Croatia

EDUCATION:

  • University of Zagreb

CERTIFICATES:

  • GCP 

  • NLP 

  • Clinical Pharmacology 

PROFESSIONAL EXPERIENCE:

  • University Hospital Center Zagreb

CLINICAL TRIAL EXPERIENCE:

  • Schizophrenia 

  • Depressive disorder 

VIACRYSTAL FEEDBACK:

Prof. Dr. Marina Šagud brings decades of experience in psychiatry, with deep expertise in schizophrenia, mood disorders, and treatment-resistant depression. Her leadership in clinical trials and academic research across Croatia highlights her commitment to advancing patient care. Prof. Dr. Marina Šagud offers invaluable insights for study design, patient management, and real-world clinical perspectives. 

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Prof. Dr. Elif BirtaÅŸ AteÅŸoÄŸlu

Hematologist, Türkiye

EDUCATION:

  • Hacettepe University 

  • Marmara University 

CERTIFICATES:

  • GCP 

  • IATA

PROFESSIONAL EXPERIENCE:

  • Yeditepe University KoÅŸuyolu Hospital 

CLINICAL TRIAL EXPERIENCE:

  • Leukemia 

  • Lymphoma 

  • Myeloma

VIACRYSTAL FEEDBACK:

Dr. Elif BirtaÅŸ AteÅŸoÄŸlu brings extensive clinical and research expertise, making her a highly valuable contributor to advancing global research initiatives. With a deep knowledge of patient care and trial implementation, Dr. Elif BirtaÅŸ AteÅŸoÄŸlu is ideally positioned to provide meaningful insights and leverage Türkiye’s growing potential as a hub for clinical research. 

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Dr. Žarko Vrbica

Pulmonologist, Croatia

EDUCATION:

  • University of Belgrade 

  • University of Zagreb

CERTIFICATES:

  • GCP 

  • European Resuscitation Council 

PROFESSIONAL EXPERIENCE:

  • Dubrovnik General Hospital 

  • University of Dubrovnik

CLINICAL TRIAL EXPERIENCE:

  • NSCLC 

  • COPD

VIACRYSTAL FEEDBACK:

Dr. Žarko Vrbica brings extensive expertise in pulmonology, with a proven track record leading clinical trials across respiratory diseases. His deep understanding of regional healthcare dynamics makes him a key asset for advancing research. Viacrystal values the ability of Dr. Žarko Vrbica to translate real-world insights into high-quality clinical research.

  • Asthma 

  • University of Split

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Prof. Dr. Mustafa ÖzgüroÄŸlu

Oncologist, Türkiye

EDUCATION:

  • Istanbul University 

PROFESSIONAL EXPERIENCE:

  • Istanbul University 

CLINICAL TRIAL EXPERIENCE:

  • Prostate cancer 

  • Lung cancer 

  • Bladder cancer 

  • Breast Cancer 

VIACRYSTAL FEEDBACK:

Dr. Mustafa ÖzgüroÄŸlu brings exceptional clinical research leadership from one of Türkiye’s highest-volume oncology centers, with over 15 years of experience in global multicenter trials. As a top international recruiter in several landmark phase III studies in genitourinary and thoracic oncology, he demonstrates outstanding capability to deliver high-quality patient enrollment and impactful clinical insights. His strong academic output and leadership of a clinical trial unit position him as a key expert for advancing oncology research across the region. 

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Dr. Aleksandar Kibel

Cardiologist, Croatia

EDUCATION:

  • University Hospital Centre Osijek

CERTIFICATES:

  • Vascular Ultrasound 

  • Cardiovascular Physiology 

  • Molecular research

PROFESSIONAL EXPERIENCE:

  • International Medical Center Priora 

  • J.J. Strossmayer University of Osijek 

CLINICAL TRIAL EXPERIENCE:

  • Cardiovascular disease 

  • Cardiovascular function

VIACRYSTAL FEEDBACK:

Dr. Aleksandar Kibel demonstrates a strong and well-balanced profile combining academic leadership and extensive hands-on clinical trial experience across multiple therapeutic areas. His involvement in translational research initiatives and medical education further strengthens his profile as a PI. From Viacrytal’s perspective, Dr. Kibel represents a highly reliable and experienced investigator with strong institutional embedding and cross-functional research coordination.

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Dr. Nuri KaradurmuÅŸ

Oncologist, Türkiye

EDUCATION:

  • Gulhane Faculty of Medicine

PROFESSIONAL EXPERIENCE:

  • Health Sciences University Gulhane Training and Research Hospital

CERTIFICATES:

  • GCP

CLINICAL TRIAL EXPERIENCE:

  • Multiple studies in medical oncology

VIACRYSTAL FEEDBACK:

Viacrystal recognizes Dr. Nuri Karadurmus as a highly experienced medical oncologist with extensive involvement as Principal Investigator across numerous Phase II–III clinical trials. His long-standing academic and hospital affiliation, combined with consistent trial leadership, reflects strong operational reliability and deep therapeutic expertise in oncology. We value his contribution to clinical research and consider him a robust and dependable partner for multinational study execution. 

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Dr. Marija Elez

Hematologist, Serbia

EDUCATION:

  • Information required

PROFESSIONAL EXPERIENCE:

  • Military Medical Academy

CERTIFICATES:

  • Information required

CLINICAL TRIAL EXPERIENCE:

  • Information required

VIACRYSTAL FEEDBACK:

Dr. Elez demonstrates strong clinical and research expertise in hematology, particularly in stem cell transplantation and hematologic malignancies. Her leadership role and active involvement in clinical trials reflect a high level of professionalism and commitment to advancing patient care. Viacrystal recognizes her as a highly valuable collaborator with both scientific depth and a patient-centered approach.

MEET  VIACRYSTAL  TEAM

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Assel brings years of experience and expertise to our team. She holds a Master of  environmental  sciences and has worked in the industry for over a decade. Assel is passionate about clinical research and is dedicated to ensuring that our clients receive the highest quality services possible.

Assel Sarsikeyeva

CEO, MSc, MBA

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Attila Szepesi

Utilizza questo spazio per presentarti e condividere la tua storia professionale.

Senior Researcher & Strategic Consultant, PhD

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