
COUNTRIES OF PRESENCE
Hongrie
Serbie
Croatie
Slovénie
Bosnie-Herzégovine

Lettonie
Lituanie
Estonie

Kazakhstan

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"


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

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

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

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.

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

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

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

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.

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.

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

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.

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.

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.

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.

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
MEET VIACRYSTAL TEAM

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
Read more

Adam Caar
Utilisez cet espace pour vous présenter et partager votre parcours professionnel.
Promoteur
Read more
