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Completed Phase 2 Interventional

Oral LGD-4665 Versus Placebo in Adults With Immune Thrombocytopenic Purpura (ITP) for 6 Weeks Plus Open Treatment Continuation

ClinicalTrials.gov ID: NCT00621894

Public ClinicalTrials.gov record NCT00621894. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 21, 2026, 6:35 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase IIA Randomized, Double-Blind, Placebo-Controlled Study of LGD-4665 in Patients With Immune Thrombocytopenic Purpura (ITP) With an Open Label Extension

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to assess the ability of LGD-4665 given daily by mouth to increase platelet counts in the treatment of patients with ITP (immune thrombocytopenic purpura). LGD-4665 increased platelet counts safely and tolerably compared to placebo in healthy volunteers. This study will examine the safety, tolerability and efficacy of 7.5 mg capsules of LGD-4665 to increase platelets compared to placebo, randomized 2:1, during blinded treatment for 6 weeks. Evaluation of platelet counts, bleeding scores and safety parameters will be done weekly. All patients are eligible to continue on active, open LGD-4665 treatment for an additional 12 weeks with optimal adjustment of dose for each patient.

Study identification

NCT ID
NCT00621894
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
GlaxoSmithKline
Industry
Enrollment
23 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 15, 2008 (Actual)
Primary completion
May 1, 2009 (Actual)
Completion
May 15, 2009 (Actual)
Last update posted
Dec 16, 2024

2008 – 2009

United States locations

U.S. sites
15
U.S. states
10
U.S. cities
12
Facility City State ZIP Site status
University of California San Diego Medical Center San Diego California 92103-8409 —
University of California, San Francisco San Francisco California 94143-1270 —
Davis, Posteraro and Wasser, MD's LLP Manchester Connecticut 06040 —
Baptist Cancer Institute Jacksonville Florida 32207 —
Cancer Center of Florida Orlando Florida 32806 —
Georgia Cancer Specialists Atlanta Georgia 30341 —
Karmanos Cancer Center, Wertz Clinical Cancer Center 4HWCRC Detroit Michigan 48201 —
Henry Ford Health System Detroit Michigan 48202 —
Washington University School of Medicine - St Louis, MO St Louis Missouri 63110 —
New Mexico Oncology Hematology Consultants Albuquerque New Mexico 87109 —
Joan and Sanford I. Weill Medical College, Cornell University New York New York 10021 —
Mount Sinai School of Medicine New York New York 10029 —
Case Western Reserve University School of Medicine Cleveland Ohio 44106-7284 —
Cleveland Clinic Foundation, Univ. of Ohio Cleveland Ohio 44195 —
Hematology Oncology Associates of South Texas San Antonio Texas 78229 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00621894, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Dec 16, 2024 · Synced Oct 21, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00621894 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →