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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT05036512
Registration number
NCT05036512
Ethics application status
Date submitted
13/08/2021
Date registered
5/09/2021
Titles & IDs
Public title
A Study to Evaluate GBT021601 in Single and Multiple Doses in Healthy Participants
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Scientific title
A Double-Blind, Randomized, Placebo-Controlled, Single and Multiple Ascending Dose (SAD/MAD) Study to Evaluate the Safety, Tolerability, PK, and Food Effect of GBT021601, a Hemoglobin S Polymerization Inhibitor, in Healthy Participants.
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Secondary ID [1]
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C5351001
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Secondary ID [2]
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GBT021601-011
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Sickle Cell Disease
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Condition category
Condition code
Blood
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Anaemia
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - GBT021601
Placebo comparator: Placebo - Placebo as a tablet or capsule with dose based off of preceding cohort's data.
Experimental: GBT021601 - GBT021601 as a tablet or capsule with dose based off of preceding cohort's data.
Treatment: Drugs: GBT021601
Administered orally with water as a single dose in the morning.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Safety, as assessed by frequency and severity of adverse events (AEs)
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Assessment method [1]
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AEs will be coded to system organ class and preferred term using the Medical Dictionary for Regulatory Activities (MedDRA) and summarized.
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Timepoint [1]
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119 days from screening Part A, 134 days from screening Part B
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Primary outcome [2]
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Safety, as assessed by changes in Heart Rate.
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Assessment method [2]
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Number of participants with changes in heart rate (bpm) as compared to baseline.
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Timepoint [2]
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119 days from screening Part A, 134 days from screening Part B
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Primary outcome [3]
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Safety, as assessed by changes in eGFR
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Assessment method [3]
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Number of participants with changes in eGFR from baseline
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Timepoint [3]
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119 days from screening Part A, 134 days from screening Part B
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Primary outcome [4]
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Safety, as assessed by changes in alanine aminotransferase (ALT)
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Assessment method [4]
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Number of participants with changes in alanine aminotransferase (ALT)
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Timepoint [4]
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119 days from screening Part A, 134 days from screening Part B
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Primary outcome [5]
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Safety, as assessed by changes in Blood pressure
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Assessment method [5]
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Number of participants with changes in systolic (mmHg) and diastolic (mmHg) blood
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Timepoint [5]
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119 days from screening Part A, 134 days from screening Part B
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Primary outcome [6]
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Plasma concentration
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Assessment method [6]
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Time of Cmax
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Timepoint [6]
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119 days from screening Part A
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Primary outcome [7]
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Plasma concentration
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Assessment method [7]
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Cmax on D1-D15
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Timepoint [7]
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134 days from screening Part B
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Secondary outcome [1]
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Determine whole blood concentration of GBT021601
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Assessment method [1]
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Hemoximetry will be used to assess oxygen saturation in whole blood by generating oxygen equilibrium curves (OECs) which relate the extent of Hb-O2 saturation to the partial pressure of O2 (pO2) and measure the binding affinity of O2 to Hb.
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Timepoint [1]
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119 days from screening Part A
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Secondary outcome [2]
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Determine plasma concentration of GBT021601.
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Assessment method [2]
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With dosing data from each cohort determine the steady-state maximum plasma/whole blood concentration (Cmax).
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Timepoint [2]
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134 days from screening Part B
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Secondary outcome [3]
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Safety, as assessed by changes in QTcF
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Assessment method [3]
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Number of participants with changes in the QTcF interval from baseline
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Timepoint [3]
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119 days from screening Part A, 134 days from screening Part B
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Eligibility
Key inclusion criteria
* Healthy males and females = 18 to = 55 years of age
* Body mass index = 18.0 to = 30.0 kg/m2
* Body weight = 50 kg at screening and Day -1
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Minimum age
18
Years
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Maximum age
55
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
- Positive pregnancy test or currently breastfeeding.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 1
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
9/12/2020
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
7/02/2023
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Sample size
Target
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Accrual to date
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Final
129
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Recruitment in Australia
Recruitment state(s)
WA
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Recruitment hospital [1]
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Harry Perkins Institute of Medical Research - Nedlands
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Recruitment hospital [2]
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Linear Clinical Research - Nedlands
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Recruitment hospital [3]
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Oxford Compounding - North Perth
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Recruitment postcode(s) [1]
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6009 - Nedlands
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Recruitment postcode(s) [2]
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6006 - North Perth
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Recruitment outside Australia
Country [1]
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United States of America
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State/province [1]
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Texas
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Pfizer
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
This first in human study is designed to evaluate the safety, tolerability, pharmacokinetics (PK), and food effect of GBT021601, a hemoglobin S (HbS) polymerization inhibitor, in healthy participants.
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Trial website
https://clinicaltrials.gov/study/NCT05036512
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Pfizer CT.gov Call Center
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Address
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Pfizer
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT05036512