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CLINICAL RESEARCH. INTEGRATED. DELIVERED.

Accelerating Clinical Development Through
 Integrated Site Management |

End-to-end operational, regulatory, and financial expertise
that empowers research sites and sponsors to achieve
faster startups, stronger compliance, and better outcomes.

Get in Touch

63+

Combined Years of Clinical Research Excellence

2+

Research Sites Under the LLH Network

4+

Therapeutic Areas of Focus

Who We Are

A trusted partner for research sites, sponsors & CROs

  • Headquartered in the metropolitan area of Houston, TX
  • Regional coverage across North and Central America
  • Leadership team averaging 20+ years per member in clinical research
  • Deep expertise across pharmaceutical sponsors, CROs, and research sites
  • Trusted partner for both early and late-phase clinical programs

Our Mission

To accelerate clinical development through integrated site management, centralized oversight, and a commitment to operational excellence — ensuring high-quality data and efficient study execution.

OUR SERVICES

LLH's Integrated Research Services Model

A full-service model spanning business development through financial closeout.

01

Business Development

Sponsor outreach, trial identification, site feasibility & qualification.

02

Study Startup Management

Protocol review, contract execution, staff training & site activation.

03

CTA / Budget Negotiations

Fair market value analysis, coverage analysis, sponsor negotiations.

04

Financial Management

Visit payments, invoicing, reconciliation & A/R tracking.
05

Regulatory & QA Support

EC submissions, protocol amendments, GCP audits & inspection readiness.
06

Financial Management: Presence

Real-time financial tracking, study dashboards & reporting, powered by Presence Software.

Leadership Team

Meet the LLH Leadership Team

Combined 63+ years of clinical research excellence.

Laura Guerra

Laura Guerra

RN, CCRC / President
Registered Nurse and Certified Clinical Research Coordinator, expert in multi-site study management, site operations, and regulatory compliance across North & Central America.
About Me
Lafit Mora Ramos

Lafit Mora Ramos

MD / VP, Medical Affairs
IMG physician with deep clinical research expertise in early and late-phase trial design, spanning oncology, cardiovascular, and infectious disease protocols.
About Me
Hussein Aladin

Hussein Aladin

ACRP-CP / VP, Financial Strategy
ACRP-Certified Professional and architect of Presence Software. Expert in CTA negotiations, site budgeting, and A/R optimization.
About Me
Julio A. Peguero

Julio A. Peguero

MD / Medical Director
Distinguished oncologist and Principal Investigator in 200+ clinical trials, with research published in JCO, The Lancet Oncology, and Blood.
About Me

Meet the LLH Leadership Team

Reach out to the LLH Research Associates leadership team.

Laura Guerra, RN, CCRC

lguerra@llhresearchassociates.com

Lafit Mora Ramos, MD

lramos@llhresearchassociates.com

Hussein Aladin, ACRP-CP

haladin@llhresearchassociates.com

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