尿液提煉hCG vs. 基因合成hCG
二者臨床IVF懷孕率相似,無統計差異
http://www.ncbi.nlm.nih.gov/pubmed/21491386
Recombinant versus urinary human chorionic gonadotrophin for final oocyte maturation triggering in IVF and ICSI cycles.
Source
Obstetrics & Gynaecology, Faculty of Medicine - Cairo University, Cairo,
Egypt and Center for Reproductive Medicine (CVV),University of Amsterdam,
Netherlands, Cairo, Egypt.
Abstract
BACKGROUND:
For the last few decades urinary human chorionic gonadotrophin (hCG) has been
used to induce final oocyte maturation triggering
in in vitro fertilization (IVF) and intra-cytoplasmic sperm injection (ICSI)
cycles. Recombinant technology has allowed the production of two drugs that can
be used for the same purpose, to mimic the endogenous luteinizing hormone (LH) surge. This allows
commercial production to be adjusted according to market requirements; the
removal of all urinary contaminants; and the safe subcutaneous administration of
a compound with less batch-to-batch variation. However, prior to a change in
practice the effectiveness of the recombinant drugs should be known compared to
the currently used urinary human chorionic gonadotrophin (uhCG).
OBJECTIVES:
To assess the efficacy and safety of subcutaneous recombinant hCG (rhCG) and
high dose recombinant LH (rLH) compared with
intramuscular uhCG for inducing final oocyte
maturation triggering in IVF and ICSI cycles.
SEARCH STRATEGY:
We searched the Cochrane Menstrual Disorders and Subfertility Group Trials
Register (January 2010), the Cochrane Central Register of Controlled Trials
(CENTRAL) (The Cochrane Library 2010), MEDLINE (1966 to January 2010) and EMBASE
(1980 to January 2010).
SELECTION CRITERIA:
Two review authors independently scanned titles and abstracts and selected
those that appeared relevant for collection of the full paper. Only truly
randomised controlled trials comparing rhCG and rLH with urinary hCG for final
oocyte maturation triggering in IVF and ICSI cycles
for treatment of infertility in normo-gonadotropic women were included.
DATA COLLECTION AND ANALYSIS:
Assessment for inclusion or exclusion, quality assessment and data extraction
were performed independently by two authors. Discrepancies were discussed in the
presence of a third author and consensus reached. Quality assessment included
method of randomisation, allocation concealment, blinding of participants and
assessors, reporting of a power calculation and intention-to-treat analysis.
MAIN RESULTS:
Fourteen RCTs (n = 2306) were identified; 11 compared rhCG with uhCG and
three compared rhLH with uhCG. There was no evidence of a statistically
significant difference between rhCG and uhCG regarding the ongoing pregnancy or
live birth rate (6 RCTs: OR 1.04, 95% CI 0.79 to 1.37; P = 0.83, I(2) = 0%).
There was no significant difference in the incidence of ovarian hyperstimulation
syndrome (OHSS) between rhCG and uhCG (3 RCTs: OR 1.5, 95% CI 0.37 to 4.1; P =
0.37, I(2) = 0%). There was no evidence of statistically significant difference
between rhLH and uhCG regarding the ongoing pregnancy or live birth rate (OR
0.94, 95% CI 0.50 to 1.76) and incidence of OHSS (OR 0.82, 95% CI 0.39 to 1.69).
These results leave open the possibility of strong differences in favour of
either treatment for both ongoing pregnancy and OHSS.
AUTHORS' CONCLUSIONS:
We conclude that there is no evidence of difference between rhCG or rhLH and
uhCG in achieving final follicular maturation in IVF, with equivalent pregnancy
rates and OHSS incidence. According to these findings uHCG is still the best
choice for final oocyte maturation triggering in
IVF and ICSI treatment cycles.
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