Abstract
Introduction
This 7-year, prospective, matched-cohort, clinical study evaluated the effects of
intramuscular depot medroxyprogesterone acetate (DMPA) (150 mg/mL) on bone mineral
density (BMD) in women aged 25���35 years.
Methods
Bone mineral density changes in new DMPA-IM users (n=248) were compared with those in women using nonhormonal contraception (n=360) for up to 240 weeks of treatment and 96 weeks of posttreatment follow-up (in
subjects receiving ���1 dose).
Results
At week 240 of treatment, mean percentage changes from baseline in DMPA-IM vs. nonhormonal
subjects were: ���5.16% (n=21) vs. +0.19% (n=65), total hip (p<.001); ���5.38% (n=33) vs. +0.43% (n=105), lumbar spine (p<.001). At week 96 posttreatment, these values were: ���0.20%
(n=25) vs. +0.84% (n=43), total hip (p=.047); ���1.19% (n=41) vs. +0.47% (n=66), lumbar spine (p=.017).
Conclusions
These results show BMD declines during DMPA-IM use; following discontinuation, significant
increases in BMD occur through 96 weeks posttreatment.
Keywords
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Article info
Publication history
Published online: May 24, 2006
Accepted:
March 10,
2006
Received in revised form:
March 9,
2006
Received:
October 7,
2005
Identification
Copyright
© 2006 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
