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High adverse events with TB prevention in HIV-infected pregnant women

 

Key clinical point: Immediate tuberculosis prevention therapy with isoniazid (IPT) during pregnancy was associated with more adverse pregnancy outcomes than delayed IPT.

Major finding: The rate of adverse pregnancy outcomes was 23% with immediate IPT during pregnancy versus 17% for IPT delayed until 12 weeks postpartum (P =. 009).

Data source: Randomized trial in 156 HIV-infected pregnant women in seven countries that have high TB prevalence rates.

Disclosures: The study was sponsored by the U.S. National Institutes of Health. Dr. Gupta reported having nothing to disclose.

Source: Gupta A et al. CROI 2018, Abstract Number 142LB.


 

FROM CROI 2018


In the intention-to-treat analysis, any-cause grade 3 or greater maternal adverse events were seen in 30.5% of women in the immediate arm versus 28.4% in the delayed arm, with an incidence-rate difference of 4.2 per 100 person-years, which did not reach the noninferiority boundary.

The respective rates in the per-protocol analysis were 33% vs. 30.4%, for an incidence-rate difference of 4.3 per 100 person-years.

In both groups, elevated liver enzymes and weight loss were the most common maternal adverse events.

All cause hepatotoxicity occurred in 6% of participants in the immediate arm and 7% in the deferred. Rates of permanent discontinuation because of toxicity were 4% and 6%, respectively, along with the two women in the immediate IPT arm and four in the delayed arm who died during the study. There were no significant differences in these outcomes between the groups.

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