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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. ORSOLYA G.KISS

Clinical Pharmacologist, Hungary

EDUCATION:

  • University of Debrecen, Center of Medical Health Science

TRAINING & CERTIFICATES:

  • GCP 

PROFESSIONAL EXPERIENCE:

  • Medicine Unit, Vasútegészségügyi Nonprofit Kiemelten Közhasznú Kft.

CLINICAL TRIAL EXPERIENCE:

  • Crohn’s Disease 

  • Ulcerative Colitis 

  • Lumbago 

VIACRYSTAL FEEDBACK:

Dr.G.Kiss is a highly experienced clinical pharmacologist with a strong focus on gastrointestinal disorders, particularly Crohn’s disease and ulcerative colitis. As PI in numerous multinational studies, she has demonstrated precise protocol implementation & efficient site management. Leadership in coordinating complex trials makes Dr. G.Kiss a valuable partner for sponsors seeking high-performance investigator sites in Hungary. 

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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. SÁNDOR KOVÁCS

General Surgeon, Hungary

EDUCATION:

  • Semmelweis University Faculty of Medicine, Budapest

TRAINING & CERTIFICATES:

  • Laparoscopic inguinal hernia

  • Video-Assisted Thoracic Surgery

  • Advanced Laparoscopic Colorectal Surgery

PROFESSIONAL EXPERIENCE:

  • Medical director at Ózdi Almási Balogh Pál Hospital 

CLINICAL TRIAL EXPERIENCE:

  • Pneumonia (ICU)

  • Surgery (Anticoagulation)

VIACRYSTAL FEEDBACK:

Dr. Sándor Kovács brings a strong combination of surgical practice and early-phase clinical research expertise. His background in trial oversight and site management translates into precise study execution, reliable documentation, and smooth collaboration with sponsors. His professional versatility and commitment to research quality make him a trusted contributor to complex clinical studies.

  • ​Transfusion Officers

  • Thyroid Surgery

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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. 

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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