PMID: 8953818Jul 1, 1996Paper

How safe are bioequivalence studies in healthy volunteers?

Thérapie
M HuicS Giljanovic

Abstract

Between 1981 and 1994, 58 bioequivalence studies (b.s.) were performed in 885 healthy volunteers. 93.1 per cent were single-dose, mainly of two way cross-over design. According to ATC groups, 13 were of cardiovascular drugs(C), 11 musculoskeletal (M), nine alimentary (A), seven urogenital (G), seven antimicrobial (J), six haematological (B), three nervous (N) and two respiratory (R). 97.2 per cent of volunteers finished the studies. Out of 25 withdrawals, 14 did it by their own will, seven were excluded because of lack of compliance with the protocol, one because of an adverse drug reaction (ADR) (preputial oedema), one because of intercurrent illness, and two for other objective reasons. In 35 studies the probants have been males, in 23 both sexes. Subjects were between 18 and 40 years. 209 adverse events were reported in 18 studies (31 per cent). From 885 volunteers that came to first session at the time, 115 (13 per cent) had ADRs. The association of the drug and ADRs was defined as probable in 91 ADRs (45.9 per cent), definite in 66 (33.4 per cent) and possible in 41 (20.7 per cent). 73 (63.5 per cent) volunteers had one ADR, 22 (19.1 per cent) had two and 20 (17.4 per cent) more than two ADRs. The majority -117 (56 per cen...Continue Reading

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