Parasitic Clearance and Recurrence Rates Among Patients With Vivax Malaria on Chloroquine and Primaquine Therapy
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Chloroquine efficacy for P.vivax infections in Bhutan.
研究概览
简要总结
This research is intended to study the efficacy of chloroquine (CQ) and primaquine (PQ) for Plasmodium vivax (P.vivax) infection, and also to study the recurrence rate among patients with P.vivax malaria on standard doses of CQ and PQ. For this study, PQ will be withheld for 28 days so as to study the efficacy of CQ alone.
This study will assess whether CQ is still effective against P.vivax or whether there are resistant P.vivax strains in Bhutan.
详细描述
This study aims to assess the efficacy of Chloroquine alone, withholding Primaquine until day 28. Parasitic clearance and recurrence rates will be recorded. Patients whose blood stage of parasites are not cleared with the standard dose of Chloroquine, or any recurrences before day 28, will be treated with second line treatment (ACT).
The patients blood level of Chloroquine (drug concentration) at the time of a recrudescent infection will de determined to assess whether that could be due to resistance, or due to low level of Chloroquine.
Any relapses occurring after day 28 when not receiving Primaquine, or after completion of Primaquine dosage for a total of 14 days (from day 29 to 42), will be treated with repeat doses of the initial treatment. The recurrence rates will be recorded so as to develop the next phase of the study where the two different doses of Primaquine (high dose vs. low dose) will be compared.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 1 Year 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •>12 months of age
- •infection with P.vivax parasitaemia monoinfection
- •presence of axillary temperature >37.5 degrees or history of fever during the past 24 hours
- •ability to swallow oral medication
- •ability and willingness to comply with the study protocol for the duration of the study, including 12 months follow up
- •informed consent from the patient/parent/guardian in the case of children
排除标准
- •Presence of general danger signs in children aged under 5 years or signs of severe malaria according to the definitions of WHO
- •Presence of severe malnutrition (defined as a child whose growth standard is below -3 z-score, has symmetrical oedema involving at least the feet or has a mid-upper arm circumference < 110 mm);
- •History of haemolysis or severe anaemia
- •Acute anaemia <7 mg/dL
- •Presence of febrile conditions due to diseases other than malaria (e.g. measles, acute lower respiratory tract infection, severe diarrhoea with dehydration) or other known underlying chronic or severe diseases (e.g. cardiac, renal and hepatic diseases, HIV/AIDS);
- •Regular medication, which may interfere with antimalarial pharmacokinetics
- •History of hypersensitivity reactions or contraindications to any of the medicine(s) being tested or used as alternative treatment(s)
- •a positive pregnancy test or lactating
研究组 & 干预措施
Chloroquine and Primaquine
Chloroquine (CQ)10mg/kg for day 1, 2 and 5mg/kg for day 3 Primaquine (PQ)0.25mg/kg/day for 14 days
干预措施: Chloroquine (Drug)
Chloroquine and Primaquine
Chloroquine (CQ)10mg/kg for day 1, 2 and 5mg/kg for day 3 Primaquine (PQ)0.25mg/kg/day for 14 days
干预措施: Primaquine (Drug)
结局指标
主要结局
Chloroquine efficacy for P.vivax infections in Bhutan.
时间窗: 28 days
The purpose is to study the efficacy of Chloroquine alone by recording recrudescent rates and parasitic clearance in P.vivax patients who are given a standard dose of Chloroquine treatment.
次要结局
- To study the efficacy of Primaquine.(Patients with recurrence after day 28 will be recorded.)