Table 16. Antimalarial drugs: inconsistent studies of pregnancy-associated pharmacokinetic changes (percent calculated as pregnant/nonpregnant values).
| Drug [Reference] | Number of Studies | Total Number of Women (Nonpregnant/Pregnant) | Average Quality | Distribution Parameters | Exposure Parameters | Elimination Parameters | Potential Sources for Inconsistency | Trimester |
|---|---|---|---|---|---|---|---|---|
| DHA (active metabolite of artesunate) [192–194,197,198] | 5 | 169/184 | 18.5 | V d 67%, V d 97% (74%–108%) | AUC 106% (82%–129%), AUC 88% (81%–112%), C max 113% (92%–114%) & | Cl 95% (80%–110%), Cl 106% (89%–123%), t 1/2 79%, t 1/2 84% (76%–97%) | Different disease severity, different pregnancy and nonpregnancy stages | 2nd–3rd |
| Pyrimethamine [199,200] | 2 | 107/127 | 19.5 | Inconsistent data for V d # | C max 149% (142%–159%) & , inconsistent data for AUC # | Inconsistent data for Cl # , t 1/2 160% (132%–189%), t 1/2 107% | Different study designs, quality and quantity of controls and genetic variations | 2nd–3rd |
| Sulfadoxine [199,200] | 2 | 107/127 | 19.5 | Inconsistent data for V d # | C max 135% & , C max 92% & , AUC 83% (67%–99), AUC 83% | Cl 125% (100%–151%), Cl 125%, t 1/2 80% (74%–86), t 1/2 89% | Different study designs, quality and quantity of controls and genetic variations | 2nd–3rd |
Significant results are marked in bold.
&Parameter not reported in all studies.
#Number not provided.