Title

A Study of the Safety, Blood Levels and Biological Effects of GBT440 in Healthy Subjects and Subjects With Sickle Cell Disease
A Phase I Randomised, Placebo-controlled, Double-blind, Single and Multiple Ascending Dose Study of the Tolerability and Pharmacokinetics of GBT440 in Healthy Subjects and Patients With Sickle Cell Disease
  • Phase

    Phase 1
  • Study Type

    Interventional
  • Status

    Completed No Results Posted
  • Intervention/Treatment

    voxelotor ...
  • Study Participants

    133
The purpose of this study is to assess the safety, tolerability, pharmacokinetic, and pharmacodynamic effects of GBT440 compared with placebo in healthy subjects and subjects with sickle cell disease (SCD).
Study Started
Dec 31
2014
Primary Completion
Mar 31
2017
Study Completion
May 31
2017
Last Update
Feb 15
2018

Drug GBT440

GBT440 will be administered as oral capsules

Drug Placebo

Matching placebo will be administered as oral capsules

GBT440 Experimental

Subjects randomized 6:2 to receive daily oral dosing of GBT440 or placebo for 1 day (single dose) and up to 118 days (multiple dose)

Placebo Placebo Comparator

Subjects randomized 6:2 to receive daily oral dosing of GBT440 or placebo for 1 day (single dose) and up to 118 days (multiple dose)

Criteria

Inclusion Criteria:

Healthy male or female of non-child bearing potential; 18 to 55 years old; are non-smokers and have not used nicotine products within 3 months prior to screening.
Male or female, 18 to 60 years old, with sickle cell disease (hemoglobin SS, HbS/β0thalassemia, HbS/β+thalassemia, or HbSC) not requiring chronic blood transfusion therapy; without hospitalization in 30 days before screening or receiving blood transfusion within 30 days before screening; subjects are allowed concomitant use of hydroxyurea if the dose has been stable for the 3 months prior to screening.

Exclusion Criteria:

Subjects who have a clinically relevant history or presence of respiratory, gastrointestinal, renal, hepatic, haematological, lymphatic, neurological, cardiovascular, psychiatric, musculoskeletal, genitourinary, immunological, dermatological, connective tissue diseases or disorders.
Subjects who consume more than 14 (female subjects) or 21 (male subjects) units of alcohol a week.
Subjects who have used any investigational product in any clinical trial within 30 days of screening
Subjects with sickle cell disease who smoke >10 cigarettes per day; have hemoglobin level <6 g/dL or >10.4 g/dL (> ULN (appropriately corrected for gender) for Cohort 15) at screening; have aspartate aminotransferase (AST) >4x upper limit of normal or alanine aminotransferase (ALT), or alkaline phosphatase (ALK) >3x upper limit of normal reference range (ULN) at screening; have moderate or severe renal dysfunction
No Results Posted