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 1Lead Sponsor
Global Blood Therapeutics, Inc.Study Type
InterventionalStatus
Completed No Results PostedIndication/Condition
Healthy Subjects Sickle Cell DiseaseIntervention/Treatment
voxelotor ...Study Participants
133The 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).
GBT440 will be administered as oral capsules
Matching placebo will be administered as oral capsules
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)
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)
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