Seattle Vaccine Trials Unit Team

Who We Are

We are researchers at the Vaccine Trials Unit (VTU), a program at Fred Hutch, our research is conducted by expert scientists at Fred Hutch, University of Washington and other academic institutions. Our team works with study volunteers to ensure the best science is conducted to help prevent HIV.

Our medical team is led by Dr. Julie McElrath, Senior Vice President and Director of the Vaccine and Infectious Diseases Division at Fred Hutch.


Meet Our Team

Gina Braun

Gina Braun (she/her)

Director of Regulatory Affairs, IVD

Gina joined the VTU in 2003.  Her role is to prepare and manage all of the site’s submissions and communications with regulatory bodies, such as the Fred Hutch’s Institutional Review Board (IRB). She is responsible for ensuring the unit’s compliance with institutional, state and federal regulations. Gina writes and edits all of the study materials for participants including consent forms, letters and instruction sheets. She also assists with protocol development and implementation for the unit’s cohort projects.

Julie Czartoski

Julie Czartoski, ARNP (she/her)

Research Clinician

Julie started at VTU in 2004.  She manages our HIV Cohort Studies which follows the HIV long-term non-progressor and HIV elite controller study, mucosal study, and the lab control study. In February 2020, she started the COVID-Cohort study [link to covidstudies page], testing and following people who are at risk for COVID and people who are newly infected. 

"I can’t imagine a more perfect occupation than what I do now," Julie said. "I value in my friends their ability to laugh (usually with me, occasionally at me) and mutual trust.”

Jennifer Han

Jennifer Han (she/her)

Clinical Research Nurse

Jen joined the VTU in December 2020, after transferring over from the HVTN. She moved to Seattle from Baltimore in 2019, but is a Californian at heart.  She is a former ED nurse who joined the clinical research world because she loves science and public health! She is passionate about HIV/AIDS issues and has previously worked as a HIV case manager, test counselor, outreach worker, and researcher.  Jen is an infectious disease nerd, avid runner and book reader, and harm reduction advocate. She has many loves including volleyball, Ru Paul’s Drag Race, traveling and eating her way around the world, and 90s R&B jams.

Her favorite work quote: “I loved clinical practice, but in public health, you can impact more than one person at a time. The whole society is our patient.”  Tom Frieden (former CDC director)

Melinda Houdak

Melinda Houdak (she/her)

Regulatory Affairs Associate, Lead

Melinda joined the VTU in April 2013. She prepares and submits regulatory documents to   multiple Institutional Review Boards (IRBs) and ensures regulatory compliance across multiple research studies. Melinda assists in writing participant materials for studies, including consent forms.  She  also coordinates the implementation of study documents in the clinic once approved.

" My motto is: Go into the world and do well, but more importantly, go into the world and do good.”

Ji Eun Lee

Ji Eun Lee, PharmD, BCPS (she/her)

Pharmacist

Ji is a Clinical Assistant Professor at the University of Washington School of Pharmacy and a Clinical Pharmacist at the Madison Clinic, Harborview Medical Center. She graduated from University of Illinois at Chicago College of Pharmacy.  She has worked at Madison Clinic since 2005 and joined the VTU in  2017.

Kim Louis

Kim Louis (she/her)

Operations and Outreach Manager

Kim joined the clinic in 2003.  She is responsible for creatively introducing the VTU research to the local community and ensuring people join the studies with the full knowledge of what it means to participate.

"To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks a real advance in science." — Albert Einstein

Janine Maenza

Janine Maenza, MD (she/her)

Medical Director

Janine has worked in HIV clinical research since 1993, with a career initially focused on clinical trials to advance HIV treatment. She joined the VTU in 2004 and has been the clinic’s medical director since 2010.  She is also Clinical Professor of Medicine at the University of Washington and a staff physician at UW Positive Research. 

Julie McElrath

Julie McElrath, MD, PhD (she/her)

Principal Investigator

Dr. McElrath is senior vice president and director of the Vaccine and Infectious Disease Division at Fred Hutch, and a Professor of Medicine at the University of Washington. As a principal investigator and director of the HIV Vaccine Trials Network’s Laboratory Center, she works to develop an effective vaccine and plays a key role in the HVTN, the largest international program for testing such vaccines. Dr. McElrath also oversees a number of COVID-19 projects at Fred Hutch and is focused on studying protective immunity to SARS-CoV-2, as well as vaccine development through the Vaccine Trials Unit.

Meredith Potochnic

Meredith Potochnic, PharmD (she/her)

Pharmacist

Meredith has been with our clinic since 1997, after moving to Seattle from Baltimore where she worked on AIDS clinical trials at Johns Hopkins University. She works half time with the VTU and the other half as an HIV/AIDS-specialty pharmacist at Madison Clinic and other research clinics.

Adrienne Shapiro

Adrienne Shapiro, MD, PhD (she/her)

Associate Medical Director

Adrienne joined the VTU in 2020 as a site investigator and research clinician. She is committed to advancing new vaccine candidates and improved prevention tools for HIV, tuberculosis (TB), and other infections of global significance. At the VTU, she shares her passion for prevention science and working with local communities as the investigator liaison to our community engagement efforts. Adrienne is an Assistant Professor in Global Health and Infectious Diseases at the University of Washington and an Assistant Professor in VIDD at the Fred Hutch. 

Candace Teague

Candace Teague, ARNP (she/her)

Research Clinician

Candice joined the VTU in 2018 and originally started on the HIV vaccine team. In 2021, Candice moved to the COVID Cohort team to help conduct screening and study visits for the COVID Cohort studies. She currently works with the COVID Cohort team at our satellite site on Fred Hutch’s main campus.

Lynn Wang

Lynn Wang (she/her)

Regulatory Coordinator

Lynn joined the VTU in 2018. She supports the program by ensuring regulatory compliance for the research studies being conducted at Seattle VTU and Immunology Vaccine Development at Fred Hutchinson Cancer Research

I often reflect on the quote by Edward Abbey, “What is the purpose of the giant sequoia tree? The purpose of the giant sequoia tree is to provide shade for the tiny titmouse.” During my life I have found  myself in the roles of both the giant sequoia, as well as the tiny titmouse. I am so grateful to be part of a team that works  towards providing shelter and shade.

Michelle Wong

Michelle Wong, ARNP (she/her)

Research Clinician

Michelle joined the VTU in 2022 and currently works on the HIV-vaccine team. In her clinical research role, she screens and provide education to potential volunteers about the clinic, HIV research, and available HIV vaccine studies. Additionally, for in-study visits, she administers study product, collect samples, and follow up on potential side effects. As well as, she has thorough conversations with volunteers on pregnancy prevention for the duration of the studies, behaviors to maintain low risk for HIV acquisition, and general sexual health. 

Ro Yoon

Ro Yoon (she/her)

Community Educator

Ro rejoined the VTU in July 2018 after a couple years away in San Francisco. She is an activist that engages with diverse communities throughout Seattle to ensure that HIV/AIDS awareness and prevention research are relevant and inclusive to all.

In addition to educational sessions with volunteers and being a liaison for VTU Community Advisory Board, Yoon coordinates community events and training that address wellness issues that intersect with HIV/AIDS.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion." [Albert Camus] Ro believes her most marked characteristic is nerves of steel.

Volunteer for a Study

Community Advisory Board

Seattle VTU believes that a well-informed community leads to better research because a knowledgeable community aware of HIV clinical research will advocate for community input to advance science and benefit us all.

Our Community Advisory Board (CAB) is a broad coalition of health advocates “who represent the interests of the community to researchers, help them understand and respect local customs, work for volunteers’ rights, create ways to teach volunteers what it takes to be in a trial, and listen closely to concerns expressed by neighbors, co-workers and family members. They also learn enough about the research to suggest how it can be done ‘right’ for the place where they live.” — Steven Wakefield

Our Community Advisory Board (CAB) is a diverse coalition of health advocates “who represent the interests of the community to researchers, help them understand and respect local customs, work for volunteers’ rights, create ways to teach volunteers what it takes to be in a trial, and listen closely to concerns expressed by neighbors, co-workers and family members. They also learn enough about the research to suggest how it can be done “right” for the place where they live.” — Steven Wakefield

To learn more about VTU CAB, please contact our community educator, Ro Yoon at ryoon@fredhutch.org or 206.667.5487.