Our Team

  • Jintanat Ananworanich

    Deputy Director

    is Deputy Director of SEARCH and also holds the position of Associate Director for Therapeutics Research U.S. Military HIV Research Program, MD, USA. Dr. Jintanat has expertise in developing protocols and managing adult and pediatric HIV clinical trials involving international and national sites. She has been a trainer on HIV/AIDS issues particularly antiretroviral therapy and the treatment of children with HIV.

  • Nittaya Phanuphak

    Chief of SEARCH

    is the Chief of SEARCH. She is an HIV dermatologist with extensive experience in HIV clinical trials, specializing in HIV prevention and sexual health. Dr. Nittaya has expertise in developing research protocols and managing large HIV clinical trials involving local and international collaborators and stakeholders. Dr. Nittaya has more than 40 publications in peer-reviewed journals.

  • Mark de Souza

    Senior Scientific Advisor

    Mark de Souza, Ph.D, M.P.H. served as Laboratory Director (1995-2012) at the Department of Retrovirology, AFRIMS, Bangkok, Thailand where he established laboratories to support HIV surveillance and clinical trials, and achieved the first College of American Pathologists (CAP)-accredited clinical laboratory in Thailand. From 2004-2012, Dr. de Souza was also the International Laboratory Program Director for the U.S. Military HIV Research Program (MHRP). In this position, he provided oversight to five MHRP laboratories in Africa and Asia, and was responsible for achieving the first CAP-accredited laboratories in Kenya and Tanzania. He played a critical role in RV144, the first HIV preventative vaccine trial to show promising results. Dr. de Souza’s research focus has been HIV diagnostics, cellular immunology, the role of innate immunity in HIV infection and the mucosal immunology of HIV infection. He is a visiting researcher at the National AIDS Centre, National Institute of Infectious Diseases, Tokyo, Japan .Dr. de Souza received his Ph.D. in Microbiology and M.P.H. in Infectious Disease Epidemiology from Yale University and was a post-doctoral fellow at Yale University and the Uniformed Services University of the Health Sciences, where he worked on Lyme disease and coronavirus receptors, respectively. He has co-authored over 100 peer-reviewed publications.

  • Eugene Kroon

    Research Physician

    is a research physician. He received his medical training at the University of Amsterdam. He is a widely-published research physician with almost two decades of clinical and research experience relating to HIV. Prior to joining SEARCH, he was the Chief Executive Officer for Thailand of a global clinical research organization.

  • Donn Colby

    Research Physician

    is a research physician. He has over 12 years of experience in HIV prevention and treatment in Southeast Asia. Prior to joining SEARCH in 2013, he was Country Director of the Harvard Medical School AIDS Initiative in Vietnam (HAIVN) for 8 years. Dr. Colby has more than 20 articles published in peer-reviewed journals.

  • Carlo Sacdalan

    Research Physician

  • James Fletcher

    Research Physician

    is a research physician at SEARCH. He is a graduate of the University of Oxford medical school. He has expertise in clinical care and support for acutely diagnosed HIV cases as well as laboratory and clinical research experience.

  • Phillip Chan Chan

    Research Physician

  • Nitiya Chomchey

    Deputy Chief of Clinical Research

    is the Deputy Chief of Clinical Research. She has extensive experience with project management and is familiar with national and international regulatory issues. She also has more than 15 years of experience as a study monitor and research nurse.

  • Varaporn Pothipala

    Deputy Chief of Operations

    is Deputy Chief of Operations. She is an experienced accountant and has managed several large projects at international organizations prior to joining SEARCH. She is responsible for all financial, human resources and office management.

  • Peeriya Prueksakaew

    Research Nurse

    is a research nurse with many years of experience both in patient care and clinical research. She worked in one of the leading university hospitals in Thailand before joining SEARCH in 2011. She is now responsible for the acute HIV infection study.

  • Ratchapong Kanaprach

    IT/Data Manager

    is the IT/Database Manager. He has many years of experience in computers and software, and has previously handled information technology projects in large corporations. He provides expertise in setting up and maintaining the IT system and clinical trial databases.

  • Duanghathai Suttichom


    is a study monitor who has several years of experience in HIV clinical trials. She is involved primarily in HIV vaccine cohort and acute HIV infection studies.

  • Jintana Intasan


    is study monitor who has over 10 years of experience in HIV clinical Trial. Now, she responsible for SEARCH HIV clinical study especially those relating to acute HIV Infection.

  • Kultida Poltavee


  • Hathairat Savadsuk


  • Tassanee Luekasemsuk

    Study Coordinator

    is a study coordinator. She is medical technologist joining SEARCH in July 2014. She has experience as research assistance at one of leading University.

  • Somporn Tipsuk

    Research Nurse

  • Suwanna Puttamaswin

    Research Nurse

    is a research nurse; she has many years of experience in patient care in a private hospital. She joined SEARCH in 2013.

  • Khunthalee Benjapornpong

    Research Nurse

    is a research nurse. She has over 10 years experience in patient care and treatment in one of leading hospital's operation department. She joining SEARCH in mid 2014. Now, she responsible for patient care of HIV infection study.

  • Nisakorn Ratnaratorn

    Research Nurse

  • Chutharat Munkong

    Research Nurse

  • Kamonkan Tangnaree

    Research Nurse

  • Rommanus Thaimanee

    Research Nurse

  • Siriporn Sangthong

    Nurse Assistant

  • Sangla Najai

    Nurse Assistant

  • Panadda Sawangsinth

    Laboratory Technician

  • Thanunthorn Uengthong

    IT Analyst

  • Routhairat Suttichom

    Data Entry

  • Chatchawan Tanadngan

    Data Entry

  • Kessareewan Krobmuk


    is an accountant with many years of experience in international organizations. She is responsible for all accounting issues in the organization.

  • Tanya Vierra


  • Sasiwan Srikhaw


    is an administrative assistant. She has many years of administration experience in a pharmaceutical company. She is in charge of all administration and procurement.

  • Duangdao Chuangchan

    Administrative Clerk

  • Chutima Saisaengjan

    Social worker

  • Pattama Deeklum

    Social worker