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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.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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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:

  1. Healthy adult males or females, 18 - 45 years of age (inclusive).
  2. Body weight ≥ 50 kg.
  3. Body mass index (BMI) ≥ 19 and ≤ 32 kg/m2.
  4. Medically healthy with clinically insignificant screening results (e.g., laboratory profiles, medical history, vital signs, physical examination).
  5. Absolute neutrophil count (ANC) of >1.5x109/L.
  6. 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:
  7. Normal sinus rhythm (heart rate between 45 and 100 bpm);
  8. QTcF interval ≤ 450 msec;
  9. QRS interval ≤ 110 msec; and
  10. PR interval ≤ 220 msec.
  11. Subject must be capable of providing written informed consent, and must voluntarily consent to participate in the study.
  12. Willing to answer inclusion and exclusion criteria questionnaire at check-in.

Main Exclusion Criteria:

  1. History or presence of significant respiratory, cardiovascular, pulmonary, hepatic, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic,neurologic, or psychiatric disease.
  2. 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.).
  3. Presence of liver impairment: aspartate aminotransferase (AST), alanine aminotransferase (ALT) above the normal reference range.
  4. Presence of significant kidney impairment: serum creatinine higher than the normal reference range.
  5. Allergy to band aids, adhesive dressing or medical tape.
  6. Clinically significant history or presence of ECG abnormalities such as second- or third-degree atrioventricular block; evidence, or family history, of prolonged QT syndrome.
  7. 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.
  8. History or presence of hypersensitivity or idiosyncratic reaction to deferiprone, moxifloxacin, iron chelators, or quinolone antibiotics.
  9. History or presence of:
  • agranulocytosis;
  • asthma;
  • chronic bronchitis;
  • diabetes;
  • migraine;
  • hypertension;
  • hypotension;
  • hypokalemia;
  • seizures or epilepsy;
  • anaemia.
  1. History or presence of alcoholism or drug abuse within the past 2 years.
  2. Used tobacco/nicotine-containing product for at least 3 months prior to the first dose of study.
  3. Used Depo-Provera® or levonorgestrel implant within 90 days prior to the first dose and throughout the study.
  4. Participation in another clinical trial within 28 days prior to the first dose of the study.
  5. 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.

United States1 site
  • Celerion

    Tempe, Arizona, 85283

Other trials in United States

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®).

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 groups in NCT01860703
Study groupRoleWhat they receive
Arm A - Maximum Therapeutic DoseExperimentalSingle dose of 33 mg/kg rounded to the nearest 250 mg of deferiprone tablets
Receives: Drug: Deferiprone
Treatment Arm B - Supratherapeutic DoseExperimentalSingle dose of 50 mg/kg rounded to the nearest 250 mg of deferiprone tablets
Receives: Drug: Deferiprone
Arm C - Placebo ControlExperimentalSingle dose of matching deferiprone and moxifloxacin placebo tablets.
Receives: Drug: deferiprone matching placebo tablets; Drug: placebo
Arm D - Positive ControlExperimentalSingle 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.

  1. 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

  2. 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

  3. 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

  4. 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)
  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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.

  1. First posted23 May 2013 (estimated)
  2. Study startNov 2012
  3. Primary completionDec 2012
  4. Study completionJul 2013

Resources

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)
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
Data monitoring committee
No

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.

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