Phase I–IV Clinical Trials
Support for interventional and observational studies across multiple therapeutic areas.
Phase I–IV · Biospecimen · Diagnostics · IVD
Clinical Research Network in Houston for Sponsors, CROs, and Diagnostic Programs
Phase I–IV trials, biospecimen programs, and IVD support with access to diverse populations, bilingual recruitment, and 5-site coverage across Greater Houston.
Pharma TrialsSponsor & CRO-led Phase I–IV clinical studies with full-site execution.
Biospecimen ProgramsProtocol-aligned collection workflows with compliant processing and chain-of-custody.
IVD & DiagnosticsClinical specimen acquisition and operational support for diagnostic and validation programs.
Built for Sponsors, CROs, and Diagnostic Companies
Fast feasibility. Reliable enrollment. Collection-ready operations.
VRG is designed to support pharma clinical trials, biospecimen programs, and diagnostic research requiring responsive feasibility, strong participant access, and reliable execution across Greater Houston.
- Sponsor and CRO-led pharma trial support
- Biospecimen programs and protocol-aligned workflows
- IVD and diagnostic study support
- Bilingual prescreening and scheduling
Operational Scale & Participant Access
Network Strength
VRG at a Glance
7
PIs in Network
~10,000
Study Database
~325
Monthly Visits
2016
Est. Founded
5
Locations
EN/ES
Languages
Capabilities
Clinical Research Capabilities
VRG supports a broad range of sponsor-led clinical development programs with operational discipline and community reach.
Biospecimen Collection Programs
High-volume collection with compliant chain-of-custody and processing workflows.
IVD and Diagnostic Validation
Clinical specimen acquisition and validation support for diagnostic assays.
Medical Devices
Clinical site support for device studies and technology validation programs.
Bilingual Participant Recruitment
Physician referrals, community outreach, digital and database recontact.
Feasibility Response within 48 Hours
Structured protocol review for sponsors and CROs within 48 hours.
Therapeutic Areas
Therapeutic Areas of Experience
Clinical research experience across multiple disease areas with specialized investigator expertise and community-based participant access.
Infectious Disease & Respiratory
Vaccines
Women's Health & Gynecology
Gastroenterology
Diagnostics & IVD
Biospecimen Programs
Cardiovascular & Metabolic
Musculoskeletal & Pain
Infrastructure
Site Infrastructure & Compliance
Purpose-built infrastructure for clinical trial execution, biospecimen collection, and diagnostic study support.
BSL-2 Laboratory
Certified Biosafety Level 2 facility for specimen processing and storage.
−80°C Ultra-Cold Storage
Long-term specimen preservation for demanding biospecimen protocols.
Cold-Chain Shipping
Validated dry ice, wet ice, and temperature-monitored courier shipping.
Barcode Chain-of-Custody
End-to-end traceability from collection through final delivery.
IRB & GCP Compliant
All protocols managed under active IRB oversight and GCP training.
HIPAA Compliant
Secure data management with full participant privacy protections.
149+ Combined Clinical Studies
Investigator Network
Principal Investigator Network
Board-certified investigators across multiple therapeutic areas supporting clinical trial execution, biospecimen programs, and diagnostic research.
Jorge Mendez, FMG, RN
Clinical Research
Founder & CEO — Clinical Research Investigator
58+ studies
Dr. Luis Zepeda
Family Medicine
Board-Certified Family Medicine
42+ studies
Dr. Nelson Uzquiano
Obstetrics & Gynecology
Board-Certified OB-GYN
21+ studies
Dr. Harry Ojeas
Gastroenterology
Board-Certified Gastroenterology
12+ studies
Dr. Elvis Massip
Family Medicine
Board-Certified Family Medicine
6+ studies
Dr. Andres Vasquez
Cardiology
Board-Certified Cardiology
5+ studies
Dr. Wigberto Soto
Obstetrics & Gynecology
Board-Certified OB-GYN
5+ studies
Research Experience
Active & Recent Research Experience
A selection of clinical trials and research programs supported by VRG across Greater Houston.
Active
Knee Osteoarthritis
Phase 3 study for chronic knee pain (HOPE4OA). Sponsor-led clinical research program.
MusculoskeletalHouston / Katy
Learn More Research Experience
Women's Health
Investigational study for vulvovaginal candidiasis (VVC) symptom relief validation.
GynecologyHouston / Katy
Learn More Active
Diabetes / Metabolic
Next-generation studies for Type 2 diabetes and metabolic health monitoring.
MetabolicHouston / Katy
Learn More Active
Respiratory & Vaccines
RSV, flu, and respiratory illness prevention studies for diverse populations.
Infectious DiseaseHouston / Katy
Learn More Recent
Healthy Volunteers
Biospecimen collection opportunities for longitudinal health tracking.
Healthy VolunteersHouston / Katy
Learn More Active
Fatty Liver / NASH
Clinical trials for fatty liver disease and NASH with specialized liver monitoring.
GastroenterologyHouston / Katy
Learn More Sponsors, CROs, & IVD Companies
Evaluate VRG for Your Next Study
Submit your protocol or study concept. Our team will assess feasibility, population fit, and operational readiness within 48 hours.