Prolonged QTc IntervalPhase 4NCT01860703
Evaluation of Whether Deferiprone Affects QT Interval in Healthy Subjects
A Phase 4 study testing Deferiprone and moxifloxacin in people with Prolonged QTc Interval, run by ApoPharma at 1 site in United States.
Trial summary
Randomized, single-dose, double-blind, placebo and active controlled, four-period crossover study to evaluate the effect of deferiprone on QTc prolongation after administration of a single therapeutic (33 mg/kg) and supratherapeutic(50 mg/kg) oral doses of deferiprone in healthy volunteers as compared to placebo… Read more about this study
- Who is it for?
- Ages 18 to 45 yearsHealthy volunteers can take part
- Conditions the study is for
- Prolonged QTc Interval
- What is being tested?
- Deferiprone and moxifloxacin
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 50 participants
- Where
- 1 siteUnited States
- Study dates
- Nov 2012to Jul 2013
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 45 years
- All sexes
- Healthy volunteers accepted
- Adult
Main Inclusion Criteria:
- Healthy adult males or females, 18 - 45 years of age (inclusive).
- Body weight ≥ 50 kg.
- Body mass index (BMI) ≥ 19 and ≤ 32 kg/m2.
- Medically healthy with clinically insignificant screening results (e.g., laboratory profiles, medical history, vital signs, physical examination).
- Absolute neutrophil count (ANC) of >1.5x109/L.
- 12-lead ECGs which have no clinically significant findings as judged by the Principal Investigator (PI) or the PI's designee at screening and check-in of each study period,including:
- Normal sinus rhythm (heart rate between 45 and 100 bpm);
- QTcF interval ≤ 450 msec;
- QRS interval ≤ 110 msec; and
- PR interval ≤ 220 msec.
- Subject must be capable of providing written informed consent, and must voluntarily consent to participate in the study.
- Willing to answer inclusion and exclusion criteria questionnaire at check-in.
Main Exclusion Criteria:
- History or presence of significant respiratory, cardiovascular, pulmonary, hepatic, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic,neurologic, or psychiatric disease.
- Disorders or surgery of the gastrointestinal tract which may interfere with drug absorption or may otherwise influence the PK of the investigational medicinal products (e.g. cholecystectomy, resections of the small or large intestine, febrile conditions, chronic diarrhea, chronic vomiting, endocrine disease, severe infections,acute inflammations, etc.).
- Presence of liver impairment: aspartate aminotransferase (AST), alanine aminotransferase (ALT) above the normal reference range.
- Presence of significant kidney impairment: serum creatinine higher than the normal reference range.
- Allergy to band aids, adhesive dressing or medical tape.
- Clinically significant history or presence of ECG abnormalities such as second- or third-degree atrioventricular block; evidence, or family history, of prolonged QT syndrome.
- Sustained sitting systolic blood pressure of <90 mmHg or >140 mmHg, or diastolic blood pressure of >95 mmHg at screening or check-in of Period 1.
- History or presence of hypersensitivity or idiosyncratic reaction to deferiprone, moxifloxacin, iron chelators, or quinolone antibiotics.
- History or presence of:
- agranulocytosis;
- asthma;
- chronic bronchitis;
- diabetes;
- migraine;
- hypertension;
- hypotension;
- hypokalemia;
- seizures or epilepsy;
- anaemia.
- History or presence of alcoholism or drug abuse within the past 2 years.
- Used tobacco/nicotine-containing product for at least 3 months prior to the first dose of study.
- Used Depo-Provera® or levonorgestrel implant within 90 days prior to the first dose and throughout the study.
- Participation in another clinical trial within 28 days prior to the first dose of the study.
- Had a clinically significant illness during the 4 weeks prior to check-in on Day -1 of Period 1.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Double-Blind, Randomized, Crossover, Thorough QT/QTc Trial to Evaluate the Potential of Deferiprone to Prolong the QT Interval in Healthy Subjects
Randomized, single-dose, double-blind, placebo and active controlled, four-period crossover study to evaluate the effect of deferiprone on QTc prolongation after administration of a single therapeutic (33 mg/kg) and supratherapeutic(50 mg/kg) oral doses of deferiprone in healthy volunteers as compared to placebo treatment.
Read the detailed description
Post-marketing study to evaluate the effect of deferiprone and deferiprone 3-O-glucuronide on QTc prolongation in healthy volunteers after administration of a single therapeutic (33 mg/kg) and supratherapeutic (50 mg/kg) oral dose of deferiprone and moxifloxacin (Avelox®).
- Conditions
- Prolonged QTc Interval
- Being tested
- Deferiprone, deferiprone matching placebo tablets, moxifloxacin, placebo
- Keywords
- Ferriprox®, LI, DFP, Deferiprone, Healthy Volunteers
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
DeferiproneDrug
Also called Ferriprox, L1
Ferriprox 500 mg tablets
deferiprone matching placebo tabletsDrug
Also called Placebo
deferiprone matching placebo tablets
moxifloxacinDrug
Also called Avelox
Active control
placeboDrug
moxifloxacin-matching placebo
| Study group | Role | What they receive |
|---|---|---|
| Arm A - Maximum Therapeutic Dose | Experimental | Single dose of 33 mg/kg rounded to the nearest 250 mg of deferiprone tablets Receives: Drug: Deferiprone |
| Treatment Arm B - Supratherapeutic Dose | Experimental | Single dose of 50 mg/kg rounded to the nearest 250 mg of deferiprone tablets Receives: Drug: Deferiprone |
| Arm C - Placebo Control | Experimental | Single dose of matching deferiprone and moxifloxacin placebo tablets. Receives: Drug: deferiprone matching placebo tablets; Drug: placebo |
| Arm D - Positive Control | Experimental | Single dose of one 400 mg moxifloxacin tablet. Receives: Drug: moxifloxacin |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximum Difference in Change From Baseline in ddQTcF Following a Single Dose of 33 mg/kg Deferiprone
Change from baseline in QTcF interval was measured by looking at the post-dose difference in change from baseline in Fridericia's QT corrected heart rate (dQTcF) between treatment and placebo (ddQTcF) at each time interval.
ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
Maximum Difference in Change From Baseline in ddQTcF Following a Single Dose of 50 mg/kg Deferiprone
Change from baseline in QTcF interval was measured by looking at the post-dose difference in change from baseline in Fridericia's QT corrected heart rate (dQTcF) between treatment and placebo (ddQTcF) at each time interval.
ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
Maximum Postdose QT/QTc Interval
The maximum post-dose QT/QTc interval for deferiprone and placebo.
ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
Maximum Change From Baseline (dQT/dQTc)
Maximum Change From Baseline (dQT/dQTc) for deferiprone and placebo.
ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
Secondary outcomes (6)
Number of Participants With Adverse Events
Number of participants with adverse events following therapeutic and supratherapeutic doses of deferiprone
Measured: From administration of the first dose until 7 days +/- 1 day following the final dose
Cmax of Deferiprone and Deferiprone 3-O Glucuronide
To evaluate the Cmax of deferiprone and deferiprone 3-O-glucuronide following administration of single doses of 33 and 50 mg/kg deferiprone in healthy volunteers.
Serial blood samples were collected prior to dosing and within 5 minutes following completion of each scheduled post-dose ECG at Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
Tmax of Deferiprone and Deferiprone 3-O-glucuronide
To evaluate the Tmax of deferiprone and deferiprone 3-O-glucuronide following administration of single doses of 33 and 50 mg/kg deferiprone in healthy volunteers.
Serial blood samples were collected prior to dosing and within 5 minutes following completion of each scheduled post-dose ECG at Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
AUC0-infinity for Serum Deferiprone and Deferiprone 3-O-glucuronide
AUC0-infinity was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite in healthy volunteers.
Serial blood samples were collected prior to dosing and within 5 minutes following completion of each scheduled post-dose ECG at Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
T1/2 for Serum Deferiprone and Deferiprone 3-O-glucuronide
T1/2 was assessed over a 24-hour interval for analyses of deferiprone and its 3-O-glucuronide metabolite in healthy volunteers.
Serial blood samples were collected prior to dosing and within 5 minutes following completion of each scheduled post-dose ECG at Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
Maximum Difference in Change From Baseline in ddQTcF Following a Single Dose of Moxifloxacin
Change from baseline in QTcF interval was measured by looking at the post-dose difference in change from baseline in Fridericia's QT corrected heart rate (dQTcF) between treatment and placebo (ddQTcF) at each time interval.
ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Measured: 24-hour interval
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 May 2013 (estimated)
- Study startNov 2012
- Primary completionDec 2012
- Study completionJul 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Prolonged QTc IntervalStudies of the same condition, open and under way.
- 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 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- ApoPharma
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Fernando Tricta, MD, Study chair, ApoPharmaCaroline Fradette, PhD, Study director, ApoPharma
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01860703
- Sponsor's protocol ID
- LA37-1111
- Status last verified
- Nov 2014
- First submitted
- 6 May 2013
- Last updated
- 12 Nov 2014
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 Nov 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Double-Blind, Randomized, Crossover, Thorough QT/QTc Trial to Evaluate the Potential of Deferiprone to Prolong the QT Interval in Healthy Subjects
- ClinicalTrials.gov ID
- NCT01860703
- Acronym / sponsor ID
- LA37-1111
- Conditions
- Prolonged QTc Interval
- Keywords
- Ferriprox®, LI, DFP, Deferiprone, Healthy Volunteers
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- ApoPharmaIndustry (pharma, biotech, devices)
- Study start
- Nov 2012
- Primary completion
- Dec 2012 (actual)
- Study completion
- Jul 2013 (actual)
- First posted
- 23 May 2013 (estimated)
- Results
- Posted 12 Nov 2014
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Randomized, single-dose, double-blind, placebo and active controlled, four-period crossover study to evaluate the effect of deferiprone on QTc prolongation after administration of a single therapeutic (33 mg/kg) and supratherapeutic(50 mg/kg) oral doses of deferiprone in healthy volunteers as compared to placebo treatment.
Detailed description
Post-marketing study to evaluate the effect of deferiprone and deferiprone 3-O-glucuronide on QTc prolongation in healthy volunteers after administration of a single therapeutic (33 mg/kg) and supratherapeutic (50 mg/kg) oral dose of deferiprone and moxifloxacin (Avelox®).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Arm A - Maximum Therapeutic Dose | Experimental | Drug: DeferiproneSingle dose of 33 mg/kg rounded to the nearest 250 mg of deferiprone tablets |
| Treatment Arm B - Supratherapeutic Dose | Experimental | Drug: DeferiproneSingle dose of 50 mg/kg rounded to the nearest 250 mg of deferiprone tablets |
| Arm C - Placebo Control | Experimental | Drug: deferiprone matching placebo tablets, Drug: placeboSingle dose of matching deferiprone and moxifloxacin placebo tablets. |
| Arm D - Positive Control | Experimental | Drug: moxifloxacinSingle dose of one 400 mg moxifloxacin tablet. |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
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 |
|---|---|---|
| DeferiproneAlso: Ferriprox, L1Ferriprox 500 mg tablets | Drug | Arm A - Maximum Therapeutic Dose, Treatment Arm B - Supratherapeutic Dose |
| deferiprone matching placebo tabletsAlso: Placebodeferiprone matching placebo tablets | Drug | Arm C - Placebo Control |
| moxifloxacinAlso: AveloxActive control | Drug | Arm D - Positive Control |
| placebomoxifloxacin-matching placebo | Drug | Arm C - Placebo Control |
Primary outcome
Maximum Difference in Change From Baseline in ddQTcF Following a Single Dose of 33 mg/kg Deferiprone
Time frame: 24-hour interval
Change from baseline in QTcF interval was measured by looking at the post-dose difference in change from baseline in Fridericia's QT corrected heart rate (dQTcF) between treatment and placebo (ddQTcF) at each time interval. ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Maximum Difference in Change From Baseline in ddQTcF Following a Single Dose of 50 mg/kg Deferiprone
Time frame: 24-hour interval
Change from baseline in QTcF interval was measured by looking at the post-dose difference in change from baseline in Fridericia's QT corrected heart rate (dQTcF) between treatment and placebo (ddQTcF) at each time interval. ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Maximum Postdose QT/QTc Interval
Time frame: 24-hour interval
The maximum post-dose QT/QTc interval for deferiprone and placebo. ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
Maximum Change From Baseline (dQT/dQTc)
Time frame: 24-hour interval
Maximum Change From Baseline (dQT/dQTc) for deferiprone and placebo. ECG recordings were obtained within a 5-minute time window at Hours -0.75, -0.5, and -0.25 (prior to dosing) and Hours 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 6, 8, 10, and 24 post-dose.
6 secondary outcomes
Number of Participants With Adverse Events
Time frame: From administration of the first dose until 7 days +/- 1 day following the final dose
Cmax of Deferiprone and Deferiprone 3-O Glucuronide
Time frame: 24-hour interval
Tmax of Deferiprone and Deferiprone 3-O-glucuronide
Time frame: 24-hour interval
AUC0-infinity for Serum Deferiprone and Deferiprone 3-O-glucuronide
Time frame: 24-hour interval
T1/2 for Serum Deferiprone and Deferiprone 3-O-glucuronide
Time frame: 24-hour interval
Maximum Difference in Change From Baseline in ddQTcF Following a Single Dose of Moxifloxacin
Time frame: 24-hour interval
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Nov 2014.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
Related trials for Prolonged QTc Interval
Not yet recruitingObservational study
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Patients Treated With Methadone
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.
Fernando Tricta, MD study chair
ApoPharma
Caroline Fradette, PhD study director
ApoPharma
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Deferiprone and moxifloxacin in people with Prolonged QTc Interval, run by ApoPharma at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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 12 Nov 2014. 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 States. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 12 Nov 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Maximum Difference in Change From Baseline in ddQTcF Following a Single Dose of 33 mg/kg Deferiprone (time frame: 24-hour interval). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 12 Nov 2014.