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MalariaPhase 4NCT00444106

Evaluation of Potential Effect of Artemether - Lumefantrine and Malaria Drugs on Auditory Function

A Phase 4 study testing Artesunate-mefloquine, Atovaquone-proguanil and Artemether-lumefantrine in people with Malaria and Falciparum, run by Novartis at 1 site in Colombia.

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

To evaluate the potential effects of artemether- lumefantrine on the auditory function Read more about this study

Who is it for?
Ages 12 years and older
Conditions the study is for
Malaria, Falciparum
What is being tested?
Artesunate-mefloquine, Atovaquone-proguanil and Artemether-lumefantrine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
265 participants
Where
1 siteColombia
Study dates
May 2007to Nov 2008
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 12 years and older
  • All sexes
  • Child, Adult, Older adult

Who may be able to join

  • 12 years of age or older
  • Accepts Healthy Volunteers
  • P. falciparum parasitemia between 1,000 and 100,000 parasites/μl
  • History of fever or presence of fever (temperature ≥ 37.5°C)

Who cannot join

  • Signs/symptoms of severe/complicated malaria
  • Ingestion of various antimalarial drugs, or antibiotics in the previous 2 weeks to 2 months
  • History of any drug-related hearing impairment
  • Abnormal hearing function at study entry
  • Exposure to sustained loud noises, by self-report, within the past 24 hours
  • Present ear problems
  • Pregnant or lactating (urine test for β-HCG) to be performed on any woman of child bearing age)
  • Other protocol-defined inclusion/exclusion criteria may apply.

Trial locations and contacts

1 site in 1 country.

Colombia1 site
  • Novartis Investigational Site

    Tumaco

Other trials in Colombia

About this study

Official title: An Open-label, Randomized, Single-center, Parallel Group Study of the Effects of Artemether-lumefantrine (Coartem®) Atovaquone-proguanil (Malarone®) and Artesunate-mefloquine on Auditory Function Following the Treatment of Acute Uncomplicated Plasmodium Falciparum Malaria in Patients 12 Years of Age or Older

To evaluate the potential effects of artemether- lumefantrine on the auditory function

Conditions
Malaria, Falciparum
Being tested
Artesunate-mefloquine, Atovaquone-proguanil, Artemether-lumefantrine
Keywords
Malaria, hearing, co-artemether, auditory, Plasmodium falciparum, marsh fever, Plasmodium infections, remittent fever, paludism, artemether, artemisinins, benflumetol, lumefantrine
Medical subject headings
Malaria, Malaria, Falciparum

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Artesunate-mefloquineDrug

    Also called Plasmotrim, Mephaquin

  • Atovaquone-proguanilDrug

    Also called Malarone

  • Artemether-lumefantrineDrug

    Also called Coartem

Study groups in NCT00444106
Study groupRoleWhat they receive
Artemether-lumefantrine (Coartem)ExperimentalArtemether-lumefantrine (Coartem) tablets containing 20 mg artemether and 120 mg lumefantrine twice a day for 3 days, dosage dependent on body weight.
Receives: Drug: Artemether-lumefantrine
Atovaquone-proguanil (Malarone)Active comparatorAtovaquone-proguanil (Malarone) tablets containing 250 mg atovaquone and 100 mg proguanil hydrochloride once daily for 3 days, dosage dependent on body weight.
Receives: Drug: Atovaquone-proguanil
Artesunate-mefloquineActive comparatorArtesunate-mefloquine tablets containing 50 mg artesunate (Plasmotrim) and 250 mg mefloquine (Mephaquin). Artesunate 4 mg/kg/day (for 3 days) and mefloquine 25 mg/kg/day (days 2 and 3) total dose was given once daily dependent upon body weight.
Receives: Drug: Artesunate-mefloquine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Auditory Abnormalities at Day 7 Assessed by Auditory Brainstem Response (ABR) Wave III Latency Changes on Day 7(a Type of Hearing Test)

    To demonstrate the safety of artemether-lumefantrine after 3 days of treatment in patients with acute, uncomplicated falciparum malaria by testing the null hypothesis that the rate of auditory abnormalities is ≥ 15% in the population treated with artemether-lumefantrine as assessed by ABR at Day 7 following initiation of treatment compared with their baseline values. An "auditory nerve abnormality" is here defined as a greater than 0.30 ms change in Wave III latency from baseline to Day 7. Exact Pearson-Clopper two-sided 95% confidence limits were constructed for all three treatment groups.

    Measured: 7 days

Secondary outcomes (3)
  1. Auditory Changes Following 3 Days of Treatment at Days 3, 7, 28, and 42 Days as Assessed by Pure Tone Thresholds Assessments (a Type of Hearing Test)

    Audiometric measurements such as pure-tone threshold (air conduction tested at 250 to 8000 HZ) day 3, 7, 28 and 42 following initiation of treatment, including changes from baseline. Pure-tone average (PTA) calculated for each ear by averaging the pure-tone threshold values at 500, 1000, 2000 and 3000 HZ.

    Measured: Baseline (Day 1), 3, 7, 28 and Day 42

  2. Relationship Between Changes in Auditory Function and Treatment Groups

    ABR Wave III latency (ms) changes from baseline to Day 7 in the three drug exposure groups.

    Measured: From Baseline to Day 7

  3. Efficacy of Polymerase Chain Reaction (PCR) Adjusted Malaria Cure Rates of the Three Treatment Regimens at Days 14, 28 and 42

    Percentage of patients with clearance of asexual parasitemia (observed by optical microscopy) within 7 days of initiation of trial treatment without recrudescence within 14, 28 and 42 days respectively after initiation of treatment. Patients with recurrent parasitemia and paired PCR results were classified as either a new infection (different paired genotypes) or a recrudescence (matching paired genotypes). Patients without paired PCR results or ambiguous results were classified as treatment failures.

    Measured: Days 14, 28 and 42

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Mar 2007 (estimated)
  2. Study startMay 2007
  3. Primary completionNov 2008
  4. Study completionNov 2008

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
Parallel groups
Masking
None (open label)
Enrolment
265 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00444106
Sponsor's protocol ID
CCOA566A2417
Status last verified
Apr 2011
First submitted
6 Mar 2007
Last updated
5 Apr 2011

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Artesunate-mefloquine, Atovaquone-proguanil and Artemether-lumefantrine in people with Malaria and Falciparum, run by Novartis at 1 site in Colombia.

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 4 inclusion and 8 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 Apr 2011. 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 Colombia. 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 16 Mar 2011). 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?

Percentage of Participants With Auditory Abnormalities at Day 7 Assessed by Auditory Brainstem Response (ABR) Wave III Latency Changes on Day 7(a Type of Hearing Test) (time frame: 7 days). 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 5 Apr 2011.

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