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Meet Team IMPACT

Drs. Carpenter and Smith have been working together at MUSC since 2017. Team IMPACT also includes interns, postdocs, research assistants, and undergraduates.

Matthew Carpenter, Ph.D.

Faculty Profile
carpente@musc.edu

Dr. Carpenter is the Flora McLeod Edwards Distinguished Chair in Cancer Research and a tenured professor. He is Associate Director for Behavioral and Population Science at MUSC Hollings Cancer Center, a National Cancer Institute-designated cancer center, and also serves as co-director of the Tobacco Research Program. His primary body of research falls into three thematic areas. The first focuses on randomized trials of medication sampling, a pragmatic and scalable behavioral exercise that allows smokers to get further engaged in the cessation process. His teams have conducted a number of trials, often large scale and nationwide, to evaluate medication sampling among smokers across the motivational spectrum.

A second theme of his work is to apply the same naturalistic product sampling approach, within a randomized design (minimizing self-selection bias), to evaluate the effects of alternative products, namely e-cigarettes. This design allows examination of naturalistic yet causal effects of e-cigarettes on uptake, outcomes, and biomarkers. A third theme is more methodological, and derives from the first two.

Throughout these large scale, remote clinical trials, his team continues to push the envelope for what can be done remotely, and how it can be done. New mHealth tools allow researchers to reach large and varied study samples (external validity) while maintaining the methodological rigor (internal validity) that all trials must balance. These tools became much more popular during COVID, but have only opened the doors of possibility to what lies ahead for clinical research.

Across these themes, Dr. Carpenter led a wide range of large scale randomized clinical trials (RCTs) on: 1) smoking reduction (N=616), 2) several trials of nicotine replacement therapy (NRT) sampling (Ns=849, 157, 1245) and 3) alternative tobacco products (N=1236). He recently led what we believe is the largest (N=638) naturalistic clinical trial of e-cigarettes in the U.S. These pragmatic trials test the real-world impact of providing sampling (NRT or e-cigarettes) to smokers.

Throughout, Dr. Carpenter is keen on trainee development, encouraging a long line of trainees to develop their own science (primary mentor for F32, K07, K01, 2 K23s, 3 American Cancer Society and various NIH Loan Repayment Program recipients) and progress in their own professional careers (>6 prior trainees now in academia). He has served on several NIH study sections, including several as chair. As of January 2022, he took on a role as NIH Center for Scientific Review Advisory Committee Member.

Tracy Smith, Ph.D.

Faculty Profile
smithtra@musc.edu

Dr. Smith is an associate professor in the Addiction Sciences Division of the Department of Psychiatry and Behavioral Sciences. She also serves as co-leader of the Cancer Prevention & Control Research Program within MUSC Hollings Cancer Center, a National Cancer Institute-designated cancer center. The goal of Dr. Smith’s research is to reduce the harms associated with smoking, with a focus on regulatory science. One arm of her research has focused on tobacco regulations that can reduce the appeal and addictiveness of combustible tobacco — the most harmful form of tobacco. This includes a decade of research related to reducing the nicotine level within cigarettes to minimally addictive levels, and new research investigating the impact of banning menthol within cigarettes.

Another arm of Dr. Smith’s research focuses on the impact of non-combustible tobacco products on public health, including both their potential to serve as harm reduction tools for current smokers and their potential to increase harm for youth and non-smokers who initiate tobacco use with these products. Dr. Smith is currently conducting several trials that test the impact of e-cigarettes on smoking behavior and smoking abstinence among current smokers.

Dr. Smith is passionate about mentoring and works with trainees at a variety of levels, including high school students, undergraduates, graduate students, psychology interns, and postdoctoral fellows.

Research Staff

Program Coordinators

Yunuen Lupian
Yunuen is a program coordinator for Dr. Carpenter's lab and joined Team IMPACT in 2022. She is pursuing her master's degree in clinical counseling at The Citadel and is interested in helping those with substance use disorders. In her free time, Yunuen enjoys cooking, going to the beach and indulging in creative pursuits.

Merritt McDonald
Merritt is a program coordinator for Dr. Smith's lab and joined Team IMPACT in 2023. She has a bachelor’s degree in psychology from Wake Forest University and hopes to attend physician assistant school in the future.

Program Assistants

Gabrielle (Gabby) Brown
Gabby joined Team IMPACT as a program assistant in 2024. She graduated from the University of South Carolina as a student-athlete with her B.S. in biological sciences in 2022. She has plans to pursue medical school in the future.

Kaleigh Isgett
Kaleigh joined Team IMPACT as a program assistant in 2025. She graduated from Rockhurst University with her B.S. in molecular biology with a minor in theology in 2025. She plans to pursue medical school in the future.

Danielle King
Danielle joined Team IMPACT as a program assistant in 2024. She earned her B.A. in psychology from the College of Charleston in 2024 and is currently pursuing her Master’s in Health Administration at MUSC. Danielle is passionate about supporting meaningful connections and contributing to initiatives that promote health and wellness within the community.

Kathryn (Katie) Long
Kathryn joined Team IMPACT as a program assistant in 2025. She earned her B.S. in neuroscience with minors in chemistry and German from the University of North Carolina at Chapel Hill. Her passion for harm reduction and supporting individuals with substance use disorders led her to MUSC, where she enjoys connecting with participants navigating nicotine dependence. Outside of work, Kathryn loves exploring local markets, traveling, and playing pickleball.

Alumni

Research Staff

  • Billy McCamy – M.D. candidate, University of South Carolina School of Medicine Greenville
  • Katelyn Koval – Clinical Research Coordinator, University of Wisconsin-Madison
  • Amy Boatright – Program Coordinator, MUSC
  • Caitlin Beacom – Master's in Sport, Exercise, and Performance, Barry University
  • J’Niece Hunter – Mental Health Clinician, A New Tomorrow LLC
  • Lisa Coles – Attendance and Enrollment Coordinator, Meeting Street Academy
  • Liz Hawes – Clinical Psychology Doctoral Student, University of Alabama, Birmingham
  • Johanna Hidalgo – Clinical Psychology Doctoral Student, University of Vermont
  • Noelle Natale, MA – Clinical Counseling Psychology Student, The Citadel, and Program Coordinator, MUSC
  • Hannah Shoemaker, MS – Clinical Family Advocate, Dee Norton Child Advocacy Center
  • Caitlin Hood, Ph.D. – Staff to Doctoral Student to Assistant Professor, University of Kentucky

Psychology Interns, Postdocs, and Junior Faculty

  • Margaret Fahey, Ph.D. – Assistant Professor, Middle Tennessee State University
  • Jessica Burris, Ph.D. – Associate Professor, University of Kentucky
  • Bryan Heckman, Ph.D. – Associate Professor, Meharry Medical College
  • Eleanor Leavens, Ph.D. – Assistant Professor, University of Kansas Medical Center
  • Amanda Mathew, Ph.D. – Assistant Professor, Rush University
  • Ellen Meier, Ph.D. – Postdoctoral Fellow, University of Minnesota