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Our Team

One of the Largest and Most Capable Research Teams in the United States

Meet our research team led by Kay Scroggins, RN, CCRC, who founded Clinical Trials of Texas, Inc. (CTT) in 2001. She has been in the clinical research industry for more than 20 years. Our Medical Director, Douglas Denham, DO, CPI along with 16 other board-certified physicians, who practice in the San Antonio area, work with CTT to conduct studies in their respective medical specialties. This network of investigators has helped create one of the largest and most capable research sites in the United States.

Kay Scroggins, RN  President/CEO

Kay Scroggins, RN

President/CEO

Douglas Denham, DO, CPI Chief Medical Director

Douglas Denham, DO, CPI

Chief Medical Director

Leisel Koerber, BBA, CCRCSr. VP, Operations

Leisel Koerber, BBA, CCRC

Sr. VP, Operations

Lele Simmons, BBASr. VP, Business Development

Lele Simmons, BBA

Sr. VP, Business Development

Ayo Avworo DNP, APRN, FNP-BC, CPI Senior Investigator

Ayo Avworo DNP, APRN, FNP-BC, CPI

Senior Investigator

Kerry De Jesus, Psy.DPrincipal Investigator II, Mental Health

Kerry De Jesus, Psy.D

Principal Investigator II, Mental Health

Parke J. Hedges, MDPrincipal Investigator

Parke J. Hedges, MD

Principal Investigator

Terri Nutt, MDPrincipal Investigator

Terri Nutt, MD

Principal Investigator

Pendleton Wickersham, MDPrincipal Investigator

Pendleton Wickersham, MD

Principal Investigator

Lisa Martén, MDPrincipal Investigator

Lisa Martén, MD

Principal Investigator

Martha Leatherman, MDPrincipal Investigator

Martha Leatherman, MD

Principal Investigator

Valentin Almendarez, Jr., MDPrincipal Investigator

Valentin Almendarez, Jr., MD

Principal Investigator

Boulos Toursarkissian, MDPrincipal Investigator

Boulos Toursarkissian, MD

Principal Investigator

Clarissa Camarillo, BBA Director, Human Resources

Clarissa Camarillo, BBA

Director, Human Resources

Cindi Nellis, BA VP, Marketing/Recruitment

Cindi Nellis, BA

VP, Marketing/Recruitment

Barbara Corral, MSN, MA, APRN, FNP-BC Assistant Director , Early Phase Services/Investigator

Barbara Corral, MSN, MA, APRN, FNP-BC

Assistant Director , Early Phase Services/Investigator

Steven Schmid, Ph.D., M.A.  Senior Director, Laboratory Strategic Planning & Development

Steven Schmid, Ph.D., M.A.

Senior Director, Laboratory Strategic Planning & Development

Beto QuezadaPharmacist

Beto Quezada

Pharmacist

Staci Poettgen, BSDirector, Compliance

Staci Poettgen, BS

Director, Compliance

Cynthia Ramos, BS, CCRCTeam Lead II, Team 2

Cynthia Ramos, BS, CCRC

Team Lead II, Team 2

Nathan Cortez, MS Team Lead I, Team 3

Nathan Cortez, MS

Team Lead I, Team 3

Shelbie Martin, BS Team Lead I, Team 1

Shelbie Martin, BS

Team Lead I, Team 1

Dawn Killian, BSManager II, Quality Control/Data Management

Dawn Killian, BS

Manager II, Quality Control/Data Management

Edna Arce Manager II, Recruitment

Edna Arce

Manager II, Recruitment

Melinda AxtonLaboratory Manager

Melinda Axton

Laboratory Manager

Mary Jo Perez-Jenkins, CCRCCRC II, Team 2

Mary Jo Perez-Jenkins, CCRC

CRC II, Team 2

Maristelle Co, BS   CRC I, Team 2

Maristelle Co, BS

CRC I, Team 2

Kelsey Lowry, BS  CRC I, Team 2

Kelsey Lowry, BS

CRC I, Team 2

Steven Childrey  CRCA I, Team 2

Steven Childrey

CRCA I, Team 2

Catherine Frazier, BA CRCA I, Team 2

Catherine Frazier, BA

CRCA I, Team 2

Claudia De La Garza  Administrative Assistant I, Team 2

Claudia De La Garza

Administrative Assistant I, Team 2

Andrea Gomez, BACRC I, Team 3

Andrea Gomez, BA

CRC I, Team 3

Shaiane Dickerson, BBC                                                   CRC I, Team 3

Shaiane Dickerson, BBC

CRC I, Team 3

Jena Garrett  CRC I, Team 3

Jena Garrett

CRC I, Team 3

Michelle Smith, ABA  CRCA I, Team 3

Michelle Smith, ABA

CRCA I, Team 3

Alison MortensenCRC I, Team 4

Alison Mortensen

CRC I, Team 4

Victor Capetillo  CRC I, Team 4

Victor Capetillo

CRC I, Team 4

Nolan Payton, BSBM, CPhT CRCA I, Team 4

Nolan Payton, BSBM, CPhT

CRCA I, Team 4

Erica Rivera, BSN  CRC, Team 4

Erica Rivera, BSN

CRC, Team 4

Beth Monita CRCA, Team 4

Beth Monita

CRCA, Team 4

Amanda Gomez,CMA

CRC I, Team 1

Elizabeth Knight, BS CRC I, Team 1

Elizabeth Knight, BS

CRC I, Team 1

Patricia Pesina CRC I, Team 1

Patricia Pesina

CRC I, Team 1

Nicole Zarate, BS  CRC, Team 1

Nicole Zarate, BS

CRC, Team 1

Jesus CavazosCRCA I, Team 1

Jesus Cavazos

CRCA I, Team 1

Bertha Romero CRCA I, Team 1

Bertha Romero

CRCA I, Team 1

Ana Garcia, AAS CRCA I, Team 1

Ana Garcia, AAS

CRCA I, Team 1

Teresa Guerrero  CRCA I, Team 1

Teresa Guerrero

CRCA I, Team 1

Christopher Salazar, BS  CRCA, Team 1

Christopher Salazar, BS

CRCA, Team 1

Joe Monsibais CRCA, Team 1

Joe Monsibais

CRCA, Team 1

Sierra Wilson  Administrative Assistant, Team 1

Sierra Wilson

Administrative Assistant, Team 1

Brian HemmingLaboratory Technician I

Brian Hemming

Laboratory Technician I

D’Andre White, MA Laboratory Technician I

D’Andre White, MA

Laboratory Technician I

Laura Rojas  Laboratory Technician I

Laura Rojas

Laboratory Technician I

Sydney Duran, BS  PBMC Technician I

Sydney Duran, BS

PBMC Technician I

Cecilia Garcia, MS PBMC Technician

Cecilia Garcia, MS

PBMC Technician

Angelica Orta, BA IP Clinical Research Coordinator I

Angelica Orta, BA

IP Clinical Research Coordinator I

Marissa Johnson, BBABusiness Development Coordinator II

Marissa Johnson, BBA

Business Development Coordinator II

Reanna Martinez, BBABusiness Development Coordinator I

Reanna Martinez, BBA

Business Development Coordinator I

Celina Escarzaga-Rivera, BSBusiness Operations Specialist II

Celina Escarzaga-Rivera, BS

Business Operations Specialist II

Kristy Duncan, BBASenior Business Operations Specialist

Kristy Duncan, BBA

Senior Business Operations Specialist

Beverly Miller Business Operations Specialist

Beverly Miller

Business Operations Specialist

Katharine Hearron, AS  Budgets & Contracts Manager

Katharine Hearron, AS

Budgets & Contracts Manager

Ismael “Rod” RodriguezBudget/Contract Coordinator II

Ismael “Rod” Rodriguez

Budget/Contract Coordinator II

Abigail Segura Accounting Assistant I

Abigail Segura

Accounting Assistant I

Amy Griffith, BS, CCRC Senior Source Creation Specialist

Amy Griffith, BS, CCRC

Senior Source Creation Specialist

Sally Quiroz, RMARegulatory Compliance Specialist II

Sally Quiroz, RMA

Regulatory Compliance Specialist II

Rebecca Many, AAT Regulatory Compliance Specialist I

Rebecca Many, AAT

Regulatory Compliance Specialist I

Lori Gutierrez, AA Regulatory Compliance Specialist I

Lori Gutierrez, AA

Regulatory Compliance Specialist I

Chelsea Herrberg, BA Training & Development Coordinator II

Chelsea Herrberg, BA

Training & Development Coordinator II

Kevin Martinez, BBA QC & Data Management Specialist I

Kevin Martinez, BBA

QC & Data Management Specialist I

Jerry Pena, MS  QC & Data Management Specialist I

Jerry Pena, MS

QC & Data Management Specialist I

Karol Perez, BCS  QC & Data Management Specialist I

Karol Perez, BCS

QC & Data Management Specialist I

Chloe Burke, CPhT  QC & Data Management Specialist

Chloe Burke, CPhT

QC & Data Management Specialist

Jessica Garza, MBAMarketing Coordinator II

Jessica Garza, MBA

Marketing Coordinator II

Shakera Flores, BS Marketing Coordinator I

Shakera Flores, BS

Marketing Coordinator I

Rachel Cooper, BS Marketing Assistant

Rachel Cooper, BS

Marketing Assistant

Blanca Barberena Assistant Manager, Recruitment

Blanca Barberena

Assistant Manager, Recruitment

Emily MendezPre-Screen Specialist II

Emily Mendez

Pre-Screen Specialist II

Alicia GarzaRecruitment Specialist I

Alicia Garza

Recruitment Specialist I

Karina Ojeda, AA Recruitment Specialist I

Karina Ojeda, AA

Recruitment Specialist I

Casaundra Robinson  Recruitment Specialist

Casaundra Robinson

Recruitment Specialist

Madisen Buckley, BA  Recruitment Specialist

Madisen Buckley, BA

Recruitment Specialist

Stephanie Cardenas, AA Recruitment Specialist

Stephanie Cardenas, AA

Recruitment Specialist

Brenda Lozano  Recruitment Specialist

Brenda Lozano

Recruitment Specialist

Cassandra “Cassie” De Leon, BA Recruitment Specialist

Cassandra “Cassie” De Leon, BA

Recruitment Specialist

Alyssa Garza  Recruitment Specialist

Alyssa Garza

Recruitment Specialist

Gloria Anderson  Recruitment Specialist

Gloria Anderson

Recruitment Specialist

Lauren Gabriel  Recruitment Specialist

Lauren Gabriel

Recruitment Specialist

Carolina Coronado Administrative Assistant

Carolina Coronado

Administrative Assistant

Alyssa Ramos  Administrative Assistant

Alyssa Ramos

Administrative Assistant

Monica Landin Administrative Assistant I

Monica Landin

Administrative Assistant I

Alyssa Perez-Scheppler, BA Administrative Assistant

Alyssa Perez-Scheppler, BA

Administrative Assistant

Currently Enrolling Studies

CTT is currently accepting applicants for studies testing new treatments and medications for a variety of medical conditions.

Get In Touch

If you have any question about participating in research at Clinical Trials of Texas, we'd love to hear from you today!

Volunteer for a study at Clinical Trials of Texas to learn more about your medical condition and receive access to new treatments and medications at no cost to you.

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