ABSTRACT
OBJECTIVE: To compare the artesunate-amodiaquine and artemether-lumefantrine combinations in the treatment of acute uncomplicated falciparum malaria during pregnancy. METHODS: Between January and July, 2013, a double-blind randomized trial was undertaken of symptomatic pregnant women (second/third trimester) with malaria parasitemia who attended a center in Ile-Ife, Nigeria. Participants were assigned to receive artesunate-amodiaquine or artemether-lumefantrine (twice daily on days 1-3) according to a computer-generated randomization sequence. Participants and investigators were masked to group allocation. Clinical evaluations and malaria parasite counts were performed at baseline and on days 2, 3, 7, and 28. Mean interval to symptomatic relief, day-3 parasite clearance, day-28 cure rate, and adverse effects were assessed. RESULTS: Of 75 women assigned to each group, 65 in the artesunate-amodiaquine group and 71 in the artemether-lumefantrine group completed the study. No significant differences between the artesunate-amodiaquine and artemether-lumefantrine groups were recorded for mean interval to symptomatic relief (2.2 ± 1.0 days vs 2.0 ± 0.8 days; P=0.090), day-3 parasite clearance (58/65 [89.2%] vs 66/71 [93.0%]; P=0.444), and day-28 cure rate (64/65 [98.5%] vs 67/71 [94.4%]; P=0.138). Adverse effects (body weakness and pruritus) were more common among women assigned to artesunate-amodiaquine (30/75 [40.0%]) than among those assigned to artemether-lumefantrine (2/75 [2.7%]; P<0.001). CONCLUSION: Efficacies of the regimens are similar among pregnant women. However, adverse effects are more common with artesunate-amodiaquine. Pan-African Clinical Trial Registry: PACTR201310000484185.
Subject(s)
Amodiaquine/administration & dosage , Antimalarials/administration & dosage , Artemisinins/administration & dosage , Ethanolamines/administration & dosage , Fluorenes/administration & dosage , Malaria, Falciparum/drug therapy , Pregnancy Complications, Parasitic/drug therapy , Adolescent , Adult , Amodiaquine/adverse effects , Amodiaquine/therapeutic use , Antimalarials/adverse effects , Antimalarials/therapeutic use , Artemether, Lumefantrine Drug Combination , Artemisinins/adverse effects , Artemisinins/therapeutic use , Double-Blind Method , Drug Combinations , Ethanolamines/adverse effects , Ethanolamines/therapeutic use , Female , Fluorenes/adverse effects , Fluorenes/therapeutic use , Humans , Nigeria , Parasitemia/drug therapy , Pregnancy , Treatment Outcome , Young AdultABSTRACT
BACKGROUND: Helicobacter pylori has become recognized as a major cause of gastroduodenal diseases in man. Evidence indicates that once acquired, H. pylori persists, usually for life unless eradicated by antimicrobial therapy. Over the past few years, we have accumulated some knowledge of the epidemiology of H. pylori in Ile-Ife, South-West Nigeria. In one collaborative study, we detected H. pylori in 195 (73%) patients referred for endoscopy at Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC). Furthermore we have observed a variegated gastric inflammatory response and atrophy including atrophic pangastritis but are yet to demonstrate MALToma in any of our patients. In addition we have demonstrated that dental plaque is a possible source of gastric H. pylori infection and such an endogenous source could account for difficulty in eradication leading to re-infection. Presently, infected patients are treated with standard combination therapy made up of amoxycilin and ciprofloxacin with a proton pump inhibitor/bismuth. Reports however have shown that the incidence of antimicrobial resistance in Helicobacter pylori is a growing problem and which has been linked with failures in treatment and eradication. Given this situation it has become necessary to have information about the susceptibility of isolates to particular antimicrobial agents before the selection of an appropriate treatment regimen. OBJECTIVES: More recently, we sought to study antimicrobial susceptibility of locally isolated H. pylori strains. METHODS: We subjected 32 isolates to antimicrobial susceptibility testing against seven agents. RESULTS: All the isolates showed multiple acquired antimicrobial resistance as they were all resistant to amoxicillin, clarithromycin, metronidazole, while 29/31, 27/31 showed resistance to rifampicin and tetracycline respectively. Five (15.6%) of these isolates showed resistance to ciprofloxacin. CONCLUSIONS: Our findings suggest that H. pylori strains isolated within our study environment have acquired resistance to all the commonly prescribed antibiotics. On the basis of the findings it would be necessary to re-evaluate the eradication treatment regime in our setting.
Subject(s)
Anti-Bacterial Agents/therapeutic use , Drug Resistance, Bacterial , Helicobacter pylori/drug effects , Adult , Aged , Biopsy , Female , Helicobacter pylori/isolation & purification , Humans , Male , Middle Aged , NigeriaABSTRACT
Control of fecal-orally transmitted pathogens is inadequate in many developing countries, in particular, in sub-Saharan Africa. Acquired resistance to antimicrobial drugs is becoming more prevalent among Vibrio cholerae, Salmonella enteritidis, diarrheagenic Escherichia coli, and other pathogens in this region. The poor, who experience most of the infections caused by these organisms, bear the brunt of extended illness and exacerbated proportion of deaths brought about by resistance. Improved antimicrobial drug stewardship is an often cited, but inadequately implemented, intervention for resistance control. Resistance containment also requires improvements in infectious disease control, access to and quality assurance of antimicrobial agents, as well as diagnostic facilities. Structural improvements along these lines will also enhance disease prevention and control as well as rational antimicrobial drug use. Additionally, more research is needed to identify low-cost, high-impact interventions for resistance control.
