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Trial of HQK-1001 in Beta Thalassemia Intermedia in Lebanon (LB-04-THAL)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: July 17, 2012
Last Update Posted: March 14, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
HemaQuest Pharmaceuticals Inc.
Information provided by (Responsible Party):
Boston University

Beta thalassemia intermedia syndromes are genetic anemias caused by mutations which reduce production of beta globin, a major component of adult hemoglobin A, the protein which delivers oxygen throughout the body. Patients suffer from poor growth, fatigue, heart failure, endocrine deficiencies, and eventually, many require chronic blood transfusions. There is no approved therapeutic for the deficiency of beta globin chains in beta thalassemia.

This trial will study an oral therapeutic which stimulates production of fetal globin, an alternate type which is produced by all humans, but is normally switched off in infancy. This type of globin can compensate for the missing protein in beta thalassemia.

Condition Intervention Phase
Beta Thalassemia Intermedia Drug: Sodium 2,2 dimethylbutyrate Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open-Label Phase 2 Study of HQK-1001 in Subjects With Beta Thalassemia Intermedia

Resource links provided by NLM:

Further study details as provided by Boston University:

Primary Outcome Measures:
  • To measure changes from baseline in total hemoglobin when HQK-1001 is administered orally for 26 weeks in subjects with beta thalassemia intermedia. [ Time Frame: 6 months ]
    Baseline hemoglobin levels will be determined in each subject and averaged from levels obtained on a screening visit and on day one of the study, before any drug is taken. Hemoglobin levels will then be analyzed every 4 weeks during 26 weeks of taking the study drug and for 4 weeks after the dosing is completed. Changes from baseline will be determined.

Secondary Outcome Measures:
  • To measure the number of adverse events which occur with HQK-1001 treatment when given over 26 weeks in beta thalassemia intermedia. [ Time Frame: 6 months ]
    Adverse events which occur during HQK-1001 administration for 26 weeks will be recorded every 4 weeks.

  • To measure changes from baseline in HbF during treatment with HQK-1001 for 26 weeks in beta thalassemia intermedia. [ Time Frame: 6 months ]
    Levels of HbF will be averaged from a screening visit and day 1 of the study, prior to any drug treatment. HbF levels will then be measured every 4 weeks during treatment and for 4 weeks after the treatment, and compared to each subject's baseline value. The number of subjects in which an increase in HbF develops above individuals' average baseline value will be obtained.

Enrollment: 10
Study Start Date: May 2012
Study Completion Date: January 2013
Primary Completion Date: November 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Sodium 2,2 dimethylbutyrate
A single dose (20 mg/kg/day) of study drug will be taken once per day by mouth.
Drug: Sodium 2,2 dimethylbutyrate
Oral capsules, dose 20 mg/kg/day, once per day for 26 weeks
Other Name: ST20

Detailed Description:

This is a trial of an experimental oral medicine which stimulates production of fetal hemoglobin, an innate type of hemoglobin which is normally made but is suppressed in infancy. Fetal globin (HbF) can perform the function of the missing beta globin and reduce anemia in beta thalassemia, when it is produced in higher amounts than normal.

In this trial, 10 patients with beta thalassemia intermedia in Lebanon will all receive the study drug for 6 months at a dose which has been previously shown to be safe in normal volunteers and in beta thalassemia and sickle cell patients and to stimulate fetal globin production in many, when given for brief periods. The purpose of this trial is the following:

  1. To determine if total hemoglobin levels increase above baseline in some subjects when the study drug is taken for 26 weeks.
  2. To determine if fetal globin is increased above baseline levels in a proportion of subjects when the study drug is taken for 26 weeks.
  3. To determine the number of adverse events which occur with 26 weeks of administration of the study drug in beta thalassemia intermedia subjects.

After a screening period, the subjects will take the study drug at home once a day. They will be seen once every 4 weeks for examinations and laboratory tests during the dosing period and for 4 weeks afterwards.

This trial will provide an important step in evaluating a potential treatment for patients with beta thalassemia intermedia, that can be used around the world, if it is effective and safe.


Information from the National Library of Medicine

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Ages Eligible for Study:   16 Years to 50 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Diagnosis of beta thalassemia intermedia
  • Ages 16-50 years
  • Average total Hgb levels between 6.0 and 9.0 gm/dl within 30 days of initial dose of study drug
  • Able to comply with all study procedures
  • If female and of childbearing potential, must have a documented negative pregnancy test prior to entry and every 4 weeks

Exclusion Criteria:

  • Red blood cell transfusions within 3 months prior to administration of study drug
  • QT Segment corrected (QTc)> 450 msec
  • Use of Erythropoiesis Stimulating Agents(ESAs)within 9 days of first dose
  • Hydroxyurea treatment within 6 months of first study drug
  • History of significant arrythmias, syncope, or resuscitation
  • Alanine Transaminase (ALT)> 4x upper limit of normal
  • Serum creatinine > 1.5 mg/dl
  • Sse of iron chelating agents within 7 days of first dose
  • Pulmonary hypertension requiring oxygen therapy
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01642758

Chronic Care Center
Beirut, Lebanon
Sponsors and Collaborators
Boston University
HemaQuest Pharmaceuticals Inc.
Study Director: Susan P Perrine, MD Boston University
Principal Investigator: Adlette Inati, MD Chronic Care Center and Rafik Hariri University Hospital, Beirut, Lebanon
  More Information

Responsible Party: Boston University
ClinicalTrials.gov Identifier: NCT01642758     History of Changes
Other Study ID Numbers: HQK-P2-THAL
First Submitted: July 12, 2012
First Posted: July 17, 2012
Last Update Posted: March 14, 2013
Last Verified: March 2013

Keywords provided by Boston University:
Thalassemia intermedia
Fetal hemoglobin

Additional relevant MeSH terms:
Anemia, Hemolytic, Congenital
Anemia, Hemolytic
Hematologic Diseases
Genetic Diseases, Inborn