Literature DB >> 21934454

Contraceptive choices, pregnancy rates, and outcomes in a microbicide trial.

Sengeziwe Sibeko1, Cheryl Baxter, Nonhlanhla Yende, Quarraisha Abdool Karim, Salim S Abdool Karim.   

Abstract

OBJECTIVE: Women who become pregnant during the conduct of biomedical human immunodeficiency virus prevention trials are taken off the study product for safety reasons. High pregnancy rates can compromise statistical integrity in these trials. The comprehensive contraceptive curriculum developed for the Centre for the AIDS Programme of Research in South Africa (CAPRISA) 004 trial was evaluated for its ability to enhance contraceptive uptake, reduce pregnancy rates, and preserve statistical integrity.
METHODS: Contraceptive- and pregnancy-related eligibility criteria were specified in the protocol. We enrolled women who opted for a nonbarrier method of contraceptive and provided hormonal contraceptives onsite at no cost. At each monthly study visit, we provided pregnancy prevention counseling and performed pregnancy testing. Study product was withheld on pregnancy diagnosis, but women continued with monthly follow-up.
RESULTS: Contraceptive use was high throughout the study with 100% uptake at baseline and 94.71% use after a mean of 18 months follow-up at exit. Injectable progestins, particularly medroxyprogesterone acetate, remained the preferred choice of contraceptive. After 30 months of follow-up, 54 pregnancies were reported out of 889 participants, giving a pregnancy incidence rate of 3.95 per 100 woman-years (95% confidence interval 2.96-5.17). Of all pregnancies, two thirds (64.81%) resulted in a full-term live birth, whereas 18.52% and 11.11% pregnancies culminated as miscarriage and terminated pregnancies, respectively. There were no congenital anomalies in the early neonatal period. Pregnancies resulted in 1.56% of woman-years of study follow-up lost as a result of temporary product withdrawal.
CONCLUSION: The CAPRISA 004 contraceptive curriculum was an effective strategy for maintaining low pregnancy rates, thereby minimizing product withdrawal and loss of follow-up time. LEVEL OF EVIDENCE: III.

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Year:  2011        PMID: 21934454      PMCID: PMC3178043          DOI: 10.1097/AOG.0b013e31822be512

Source DB:  PubMed          Journal:  Obstet Gynecol        ISSN: 0029-7844            Impact factor:   7.661


  14 in total

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Authors:  Quarraisha Abdool Karim; Salim S Abdool Karim; Janet A Frohlich; Anneke C Grobler; Cheryl Baxter; Leila E Mansoor; Ayesha B M Kharsany; Sengeziwe Sibeko; Koleka P Mlisana; Zaheen Omar; Tanuja N Gengiah; Silvia Maarschalk; Natasha Arulappan; Mukelisiwe Mlotshwa; Lynn Morris; Douglas Taylor
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Review 5.  Why do inadvertent pregnancies occur in oral contraceptive users? Effectiveness of oral contraceptive regimens and interfering factors.

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8.  Recruitment of high risk women for HIV prevention trials: baseline HIV prevalence and sexual behavior in the CAPRISA 004 tenofovir gel trial.

Authors:  Quarraisha Abdool Karim; Ayesha Bm Kharsany; Janet A Frohlich; Cheryl Baxter; Nonhlanhla Yende; Leila E Mansoor; Koleka P Mlisana; Silvia Maarschalk; Natasha Arulappan; Anneke Grobler; Sengeziwe Sibeko; Zaheen Omar; Tanuja N Gengiah; Mukelisiwe Mlotshwa; Natasha Samsunder; Salim S Abdool Karim
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10.  SAVVY (C31G) gel for prevention of HIV infection in women: a Phase 3, double-blind, randomized, placebo-controlled trial in Ghana.

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7.  Contraceptive Use and Pregnancy Incidence Among Women Participating in an HIV Prevention Trial.

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10.  Tenofovir use and pregnancy among women initiating HAART.

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