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Efficacy and safety of the medications of first line treatment (artesunate+amodiaquine) and second line treatment (artemether+lumefantrine) for the treatment of uncomplicated Plasmodium falciparum in Malabo, Bata and Ebibey, Equatorial Guinee

Efficacy and safety of the medications of first line treatment (artesunate+amodiaquine) and second line treatment (artemether+lumefantrine) for the treatment of uncomplicated Plasmodium falciparum in Malabo, Bata and Ebibey, Equatorial Guinee

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12617000456358
Acronym
Nil
Enrollment
490
Registered
2017-03-28
Start date
2017-08-28
Completion date
2018-06-04
Last updated
2019-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The efficacy and safety of artesunate-amodiaquine and artemether+lumefantrine for the treatment of uncomplicated P. falciparum malaria will be assessed in three sites of Equatorial Guinea. It is single prospective study for each drug and both drugs will be tested in each site. Patients will be enrolled sequentially starting with artesunate+amodiaquine and then artemether+lumefantrine. Febrile patients aged 6 to 59 months with confirmed uncomplicated P. falciparum infection will be enrolled. A sample Size of 88 patients per drug per site will be targeted. Patients will be treated with the WHO recommended standard doses of artesunate-amodiaquine (daily dose for 3 days) and artemether-lumefantrine (twice daily for 3 days). Clinical and parasitological parameters will be monitored over a 28-day follow-up period to evaluate drug efficacy and safety. Primary endpoints: The proportion of patients with early treatment failure, late clinical failure, late parasitological failure or an adequate clinical and parasitological response as indicators of efficacy. Recrudescence will be distinguished from re-infection by polymerase chain reaction (PCR) analysis. Day 3 malaria positivity rate will determined. Secondary endpoints: 1. The frequency of adverse events. 2. Frequency of molecular markers for artemisinin resistance (K13)

Interventions

The study aims yo assess the efficacy and safety of the first line (artesunate+amodiaquine) and second line (artemether+lumefantrine) with the following dosages: Artesunate-amodiaquine: 4 mg/kg artesunate + 10mg/kg amodiaquine once daily for 3 consecutive days will be given. Artemether-lumefantrine containing 20 mg artemether+ 120 mg lumefantrine in each tablet will be given twice daily for three days according to the recommended weight bands as follows: 1 tablet to those weighing 5 to 14 kg; 2

The study aims yo assess the efficacy and safety of the first line (artesunate+amodiaquine) and second line (artemether+lumefantrine) with the following dosages: Artesunate-amodiaquine: 4 mg/kg artesunate + 10mg/kg amodiaquine once daily for 3 consecutive days will be given. Artemether-lumefantrine containing 20 mg artemether+ 120 mg lumefantrine in each tablet will be given twice daily for three days according to the recommended weight bands as follows: 1 tablet to those weighing 5 to 14 kg; 2 tablets for 15 to 24 kg; 3 tablets for 25 to 34 kg and 4 tablets for equal or greater than 35 kg. The total target dose ranges are 5-24 mg/kg bw of artemether and 29-144 mg/kg bw of lumefantrine. All treatments will be taken orally under direct supervision by the health worker. The two drugs will be tested sequentially. The patient will be given artesunate+amodiaquine or artemether+lumefantrine and will be followed up for 28 days.

Sponsors

Ministry of Public Health of Equatorial Guinea
Lead SponsorGovernment body

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
6 Months to 59 Months
Healthy volunteers
No

Inclusion criteria

1. age from 6 to 59 months; 2. mono-infection with P. falciparum detected by microscopy; 3. parasitaemia of 1000–200,000/microliter asexual forms; 4. presence of axillary temperature greater or equal to 37.5 degrees C or history of fever during the past 24 h 5. ability to swallow oral medication; 6. ability and willingness to comply with the study protocol for the duration of the study and to comply with the study visit schedule; 7. informed consent from the patient or parent/ guardian of children.

Exclusion criteria

1. presence of general danger signs in children aged under 5 years or signs of severe falciparum malaria according to the definitions of WHO; 2. weight under 5 kg; 4. mixed or mono-infection with another Plasmodium species detected by microscopy; 5. presence of severe malnutrition defined as a child aged 6-60 months has a mid-upper arm circumference below 115 mm) 6. presence of febrile conditions due to diseases other than malaria (e.g. measles, acute lower respiratory tract infection, severe diarrhea with dehydration) or other known underlying chronic or severe diseases (e.g. cardiac, renal and hepatic diseases, HIV/AIDS); 7. regular medication, which may interfere with antimalarial pharmacokinetics; 8. history of hypersensitivity reactions or contraindications to any of the medicine(s) being tested or used as alternative treatment(s).

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 22, 2026