Renal DiseasePhase 1NCT01664065
A Study to Assess the Pharmacokinetics of Ceftaroline in End Stage Renal Disease Patients and Matched Healthy Subjects
A Phase 1 study testing 200 mg Ceftaroline fosamil and 600 mg Ceftaroline fosamil in people with Renal Disease, run by Pfizer at 1 site in United Kingdom.
Trial summary
The purpose of this study is to assess the safety, tolerability and pharmacokinetics of Ceftaroline in a group of patients with renal disease and matching healthy subjects with normal renal function Read more about this study
- Who is it for?
- Ages 18 to 75 yearsHealthy volunteers can take part
- Conditions the study is for
- Renal Disease
- What is being tested?
- 200 mg Ceftaroline fosamil and 600 mg Ceftaroline fosamil
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 15 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- Feb 2013to Nov 2013
- Phase
- Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Provision of signed and dated, written informed consent prior to any study specific procedures
- Male and female subjects aged 18 to 75 years (inclusive) with suitable veins for cannulation or repeated venipuncture
- Women of childbearing potential must have a negative pregnancy test, be non-lactating, and be using a highly effective form of birth control for 3 months prior to enrollment, during the study, and for 3 months after completion of all study-related proceed
- Have a body mass index (BMI) between 18 and 35 kg/m2 and weigh at between 50 and 110 kg
- Haematocrit level higher than 30% at screening and baseline for each treatment period
Who cannot join
- History or presence of gastrointestinal, hepatic, or any other condition known to interfere with the absorption, distribution, metabolism, or excretion of drugs
- Any clinically significant abnormalities in clinical chemistry, haematology, or urinalysis results, as judged by the investigator
- Any clinically important abnormalities in rhythm, conduction, or morphology of resting ECG that may interfere with the interpretation of QTc interval changes
- History of any clinically significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk because of participation in the study, or influence the results or the subject's ability to participate in the study
- Receiving any dialysis treatment other than intermittent haemodialysis
Trial locations and contacts
1 site in 1 country.
About this study
Official title: An Open-label, Nonrandomised, Phase I Study to Assess the Pharmacokinetics of Ceftaroline After Intravenous Administration of aSingle Dose of Ceftaroline Fosamil (200 mg) to Patients With End-stage Renal Disease Undergoing Haemodialysis When Compared to a Single Dose of Ceftaroline Fosamil (600 mg)
The purpose of this study is to assess the safety, tolerability and pharmacokinetics of Ceftaroline in a group of patients with renal disease and matching healthy subjects with normal renal function
Read the detailed description
An Open-label, Nonrandomised, Phase I Study to Assess the Pharmacokinetics of Ceftaroline After Intravenous Administration of aSingle Dose of Ceftaroline Fosamil (200 mg) to Patients with End-stage Renal Disease Undergoing Haemodialysis when Compared to a Single Dose of Ceftaroline Fosamil (600 mg)
- Conditions
- Renal Disease
- Being tested
- 200 mg Ceftaroline fosamil, 600 mg Ceftaroline fosamil
- Keywords
- Patient Safety, Tolerability, Pharmacokinetics
- Medical subject headings
- Kidney Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
200 mg Ceftaroline fosamilDrug
1 h infusion
600 mg Ceftaroline fosamilDrug
1 h infusion
| Study group | Role | What they receive |
|---|---|---|
| AZ drug: A | Experimental | 200 mg Ceftaroline fosamil 1h infusion Receives: Drug: 200 mg Ceftaroline fosamil |
| AZ drug: B | Experimental | 600 mg Ceftaroline fosamil 1h infusion Receives: Drug: 600 mg Ceftaroline fosamil |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pharmacokinetics of Ceftaroline after intravenous infusion of Ceftaroline Fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Group 1 (patient group/period 1 and 2); Group 2 (control group - healthy). Maximum plasma concentration (Cmax), time to maximum concentration (tmax), area under the plasma concentration-time curve from zero to infinity (AUC), area under the plasma concentration-time curve from zero to time of the last quantifiable concentration (AUC(0-t)), area under the plasma concentration-time curve from zero to 12 hours after the start of the infusion (AUC(0-12)), terminal rate constant (λz), terminal half-life (t1/2λz),dose normalised Cmax, dose-normalised AUC, dose-normalised AUC(0-t), and dose-normalised AUC(0-12)
Measured: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Group 1 (patient group/period 1 and 2);Group 2 (control group - healthy). Mean residence time (MRT), total body clearance of drug from plasma (CL for ceftaroline fosamil, apparent CL for ceftaroline), volume of distribution based on the terminal phase (Vz for ceftaroline fosamil, apparent Vz for ceftaroline), volume of distribution at steady-state (Vss for ceftaroline fosamil, apparent Vss for ceftaroline)
Measured: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline after intravenous infusion of Ceftaroline fosamil in patients with end stage renal diseaseand to characterise the clearance of Ceftaroline.
Group 1 (patient group/period 2). Area under the plasma concentration -time curve from 75 min to 5.25 hr after the start of the infusion (AUC(1-5)), amount of drug extracted unchanged into the dialysate (AD) during each 1-hour interval, cumulatively, and overall (AD(1-5)) for the entire haemodialysis session (time: 75 min to 5.25 hr after the start of infusion); percent of dose recovered in dialysate (fD,%) during each 1-hour interval, cumulatively, and overall (fD(1-5),%) for the entire haemodialysis session (time: 75 min to 5.25 hr after the start of infusion), extraction coefficient (E) at each time point during haemodialysis
Measured: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Secondary outcomes (5)
Safety and tolerability in terms of adverse events, laboratory data, physical examinations, ECG and vital signs.
Measured: Screening up to 10 days after discharge from study site.
Pharmacokinetics of Ceftaroline M-1 after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Group 1 (patient group/period 1 and 2); Group 2 (control group - healthy). Maximum plasma concentration (Cmax), time to maximum concentration (tmax), area under the plasma concentration-time curve from zero to infinity (AUC), area under the plasma concentration-time curve from zero to time of the last quantifiable concentration (AUC(0-t)), area under the plasma concentration-time curve from zero to 12 hours after the start of the infusion (AUC(0-12)), terminal rate constant (λz), terminal half-life (t1/2λz),dose normalised Cmax, dose-normalised AUC, dose-normalised AUC(0-t), and dose-normalised AUC(0-12)
Measured: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline M-1 after intravenous infusion of Ceftaroline fosamil in patients with end stage renal disease and to characterise the clearance of Ceftaroline.
Group 1 (patient group/period 2). Area under the plasma concentration -time curve from 75 min to 5.25 hr after the start of the infusion (AUC(1-5)), amount of drug extracted unchanged into the dialysate (AD) during each 1-hour interval, cumulatively, and overall (AD(1-5)) for the entire haemodialysis session (time: 75 min to 5.25 hr after the start of infusion); percent of dose recovered in dialysate (fD,%) during each 1-hour interval, cumulatively, and overall (fD(1-5),%) for the entire haemodialysis session (time: 75 min to 5.25 hr after the start of infusion), extraction coefficient (E) at each time point during haemodialysis
Measured: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline fosamil after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Group 1 (patient group/period 1 and 2); Group 2 (control group - healthy). Maximum plasma concentration (Cmax), time to maximum concentration (tmax), area under the plasma concentration-time curve from zero to infinity (AUC), area under the plasma concentration-time curve from zero to time of the last quantifiable concentration (AUC(0-t)), area under the plasma concentration-time curve from zero to 12 hours after the start of the infusion (AUC(0-12)), terminal rate constant (λz), terminal half-life (t1/2λz),dose normalised Cmax, dose-normalised AUC, dose-normalised AUC(0-t), and dose-normalised AUC(0-12)
Measured: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline fosamil after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Group 1 (patient group/period 1 and 2);Group 2 (control group - healthy). Mean residence time (MRT), total body clearance of drug from plasma (CL for ceftaroline fosamil, apparent CL for ceftaroline), volume of distribution based on the terminal phase (Vz for ceftaroline fosamil, apparent Vz for ceftaroline), volume of distribution at steady-state (Vss for ceftaroline fosamil, apparent Vss for ceftaroline).
Measured: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Aug 2012 (estimated)
- Study startFeb 2013
- Primary completionNov 2013
- Study completionNov 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Renal DiseaseStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Basic science
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 15 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- David Melnick, MD, Study director, AstraZeneca Pharmaceuticals;C2C-716 1800 Concord PikePO. Box 15437Wilmington De 19850-5437Arpeat Kaviya, MBChB, MRCP, Principal investigator, Quintiles Drug Research Unit at Guy's Hospital 6 Newcomen StMirjana Kujacic, MD, Study chair, AstraZeneca Research and Development SE-431 83 Mölndal
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01664065
- Sponsor's protocol ID
- D3720C00012
- Status last verified
- Sep 2017
- First submitted
- 10 Aug 2012
- Last updated
- 5 Sep 2017
- Results posted
- No
Publications
Sunzel M, Learoyd M, Li J, Li Y, Ngo N, Edeki T. An open-label, non-randomised, phase 1, single-dose study to assess the pharmacokinetics of ceftaroline in patients with end-stage renal disease requiring intermittent haemodialysis. Int J Antimicrob Agents. 2015 Dec;46(6):682-8. doi: 10.1016/j.ijantimicag.2015.09.009. Epub 2015 Oct 22.
PubMed 26545441Das S, Li J, Iaconis J, Zhou D, Stone GG, Yan JL, Melnick D. Ceftaroline fosamil doses and breakpoints for Staphylococcus aureus in complicated skin and soft tissue infections. J Antimicrob Chemother. 2019 Feb 1;74(2):425-431. doi: 10.1093/jac/dky439.
PubMed 30380060
Study at a glance
From the registry record, last updated by the sponsor on 5 Sep 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Open-label, Nonrandomised, Phase I Study to Assess the Pharmacokinetics of Ceftaroline After Intravenous Administration of aSingle Dose of Ceftaroline Fosamil (200 mg) to Patients With End-stage Renal Disease Undergoing Haemodialysis When Compared to a Single Dose of Ceftaroline Fosamil (600 mg)
- ClinicalTrials.gov ID
- NCT01664065
- Acronym / sponsor ID
- D3720C00012
- Conditions
- Renal Disease
- Keywords
- Patient Safety, Tolerability, Pharmacokinetics
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 15 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- Feb 2013
- Primary completion
- Nov 2013 (actual)
- Study completion
- Nov 2013 (actual)
- First posted
- 14 Aug 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to assess the safety, tolerability and pharmacokinetics of Ceftaroline in a group of patients with renal disease and matching healthy subjects with normal renal function
Detailed description
An Open-label, Nonrandomised, Phase I Study to Assess the Pharmacokinetics of Ceftaroline After Intravenous Administration of aSingle Dose of Ceftaroline Fosamil (200 mg) to Patients with End-stage Renal Disease Undergoing Haemodialysis when Compared to a Single Dose of Ceftaroline Fosamil (600 mg)
Study design
- Primary purpose
- Basic science
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| AZ drug: A | Experimental | Drug: 200 mg Ceftaroline fosamil200 mg Ceftaroline fosamil 1h infusion |
| AZ drug: B | Experimental | Drug: 600 mg Ceftaroline fosamil600 mg Ceftaroline fosamil 1h infusion |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Provision of signed and dated, written informed consent prior to any study specific procedures
- Male and female subjects aged 18 to 75 years (inclusive) with suitable veins for cannulation or repeated venipuncture
- Women of childbearing potential must have a negative pregnancy test, be non-lactating, and be using a highly effective form of birth control for 3 months prior to enrollment, during the study, and for 3 months after completion of all study-related proceed
- Have a body mass index (BMI) between 18 and 35 kg/m2 and weigh at between 50 and 110 kg
- Haematocrit level higher than 30% at screening and baseline for each treatment period
Key exclusion criteria (5 listed)
- History or presence of gastrointestinal, hepatic, or any other condition known to interfere with the absorption, distribution, metabolism, or excretion of drugs
- Any clinically significant abnormalities in clinical chemistry, haematology, or urinalysis results, as judged by the investigator
- Any clinically important abnormalities in rhythm, conduction, or morphology of resting ECG that may interfere with the interpretation of QTc interval changes
- History of any clinically significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk because of participation in the study, or influence the results or the subject's ability to participate in the study
- Receiving any dialysis treatment other than intermittent haemodialysis
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 200 mg Ceftaroline fosamil1 h infusion | Drug | AZ drug: A |
| 600 mg Ceftaroline fosamil1 h infusion | Drug | AZ drug: B |
Primary outcome
Pharmacokinetics of Ceftaroline after intravenous infusion of Ceftaroline Fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Group 1 (patient group/period 1 and 2); Group 2 (control group - healthy). Maximum plasma concentration (Cmax), time to maximum concentration (tmax), area under the plasma concentration-time curve from zero to infinity (AUC), area under the plasma concentration-time curve from zero to time of the last quantifiable concentration (AUC(0-t)), area under the plasma concentration-time curve from zero to 12 hours after the start of the infusion (AUC(0-12)), terminal rate constant (λz), terminal half-life (t1/2λz),dose normalised Cmax, dose-normalised AUC, dose-normalised AUC(0-t), and dose-normalised AUC(0-12)
Pharmacokinetics of Ceftaroline after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Group 1 (patient group/period 1 and 2);Group 2 (control group - healthy). Mean residence time (MRT), total body clearance of drug from plasma (CL for ceftaroline fosamil, apparent CL for ceftaroline), volume of distribution based on the terminal phase (Vz for ceftaroline fosamil, apparent Vz for ceftaroline), volume of distribution at steady-state (Vss for ceftaroline fosamil, apparent Vss for ceftaroline)
Pharmacokinetics of Ceftaroline after intravenous infusion of Ceftaroline fosamil in patients with end stage renal diseaseand to characterise the clearance of Ceftaroline.
Time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Group 1 (patient group/period 2). Area under the plasma concentration -time curve from 75 min to 5.25 hr after the start of the infusion (AUC(1-5)), amount of drug extracted unchanged into the dialysate (AD) during each 1-hour interval, cumulatively, and overall (AD(1-5)) for the entire haemodialysis session (time: 75 min to 5.25 hr after the start of infusion); percent of dose recovered in dialysate (fD,%) during each 1-hour interval, cumulatively, and overall (fD(1-5),%) for the entire haemodialysis session (time: 75 min to 5.25 hr after the start of infusion), extraction coefficient (E) at each time point during haemodialysis
5 secondary outcomes
Safety and tolerability in terms of adverse events, laboratory data, physical examinations, ECG and vital signs.
Time frame: Screening up to 10 days after discharge from study site.
Pharmacokinetics of Ceftaroline M-1 after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline M-1 after intravenous infusion of Ceftaroline fosamil in patients with end stage renal disease and to characterise the clearance of Ceftaroline.
Time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline fosamil after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Pharmacokinetics of Ceftaroline fosamil after intravenous infusion of Ceftaroline fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline.
Time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Sep 2017.
- Background: PubMed 26545441Sunzel M, Learoyd M, Li J, Li Y, Ngo N, Edeki T. An open-label, non-randomised, phase 1, single-dose study to assess the pharmacokinetics of ceftaroline in patients with end-stage renal disease requiring intermittent haemodialysis. Int J Antimicrob Agents. 2015 Dec;46(6):682-8. doi: 10.1016/j.ijantimicag.2015.09.009. Epub 2015 Oct 22.
- Derived from this study: PubMed 30380060Das S, Li J, Iaconis J, Zhou D, Stone GG, Yan JL, Melnick D. Ceftaroline fosamil doses and breakpoints for Staphylococcus aureus in complicated skin and soft tissue infections. J Antimicrob Chemother. 2019 Feb 1;74(2):425-431. doi: 10.1093/jac/dky439.
- D3720C00012\_SCR\_SynopsisLink provided by the sponsor.
- D3720C00012 revised csp REDACTED 13Aug2014Link provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
David Melnick, MD study director
AstraZeneca Pharmaceuticals;C2C-716 1800 Concord PikePO. Box 15437Wilmington De 19850-5437
Arpeat Kaviya, MBChB, MRCP principal investigator
Quintiles Drug Research Unit at Guy's Hospital 6 Newcomen St
Mirjana Kujacic, MD study chair
AstraZeneca Research and Development SE-431 83 Mölndal
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing 200 mg Ceftaroline fosamil and 600 mg Ceftaroline fosamil in people with Renal Disease, run by Pfizer at 1 site in United Kingdom.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 5 Sep 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Pharmacokinetics of Ceftaroline after intravenous infusion of Ceftaroline Fosamil in patients with end-stage renal disease and a matched control population with normal renal function to characterise the clearance of Ceftaroline. (time frame: pre-dose, 20, 40, 60, 65, 75, 90 min, 2.25, 3.25 , 4.25, 5.25, 8, 12, 24, 36, 48 h). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01664065, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Sep 2017.