The Influence of Hormonal Contraceptive Use on HIV-1 Transmission and Disease Progression
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1 HIV/AIDS Kenneth H. Mayer, Section Editor INVITED ARTICLE The Influence of Hormonal Contraceptive Use on HIV-1 Transmission and Disease Progression Jared M. Baeten, 1 Ludo Lavreys, 2 and Julie Overbaugh 3,4 Departments of 1 Medicine and 2 Epidemiology, University of Washington, and the Divisions of 3 Human Biology and 4 Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington Women account for nearly one-half of new human immunodeficiency virus type 1 (HIV-1) infections worldwide, including the majority of infections in Africa. Biological and epidemiological studies suggest that hormonal contraceptive use could influence susceptibility to HIV-1, as well as infectivity and disease progression for those who become infected. However, not all studies have shown this relationship, and many questions remain. Safe and effective contraceptive choices are essential for women with and at risk for HIV-1 infection. Thus, understanding the effect, if any, of hormonal contraception on HIV- 1 disease among women is a public health priority. Worldwide, 17.3 million women are infected with HIV-1 [1]. Heterosexual intercourse is responsible for most HIV-1 transmissions to women, and the majority of infected women are of reproductive age. Hormonal forms of contraception, primarily oral contraceptive pills and the injectable depot medroxyprogesterone acetate (DMPA), are used by 1100 million women [2]. Hormonal contraceptives have physiological actions beyond pregnancy prevention both beneficial health effects and risks of adverse health consequences some of which were unanticipated when these products were developed [3, 4]. During the past 15 years, a number of biological and epidemiological studies have suggested that the use of hormonal contraception may influence susceptibility to HIV-1, infectivity of HIV-1, and progression of HIV-1 disease, although this has not been consistently seen in all studies. A conclusive relationship between hormonal contraception and adverse HIV-1 outcomes would be of considerable public health importance, because effective family planning services are central to initiatives to slow population growth, promote economic development, and improve the health of women and children worldwide. Received 10 January 2007; accepted 4 April 2007; electronically published 18 June Reprints or correspondence: Dr. Jared Baeten, Seattle HIV Prevention Trials Unit, 901 Boren Ave., Suite 1300, Seattle, WA (jbaeten@u.washington.edu). Clinical Infectious Diseases 2007; 45: by the Infectious Diseases Society of America. All rights reserved /2007/ $15.00 DOI: / BIOLOGICAL STUDIES Epidemiological and laboratory studies provide some insights into possible biological mechanisms by which hormonal contraception could influence HIV-1. In a series of studies, Marx and colleagues demonstrated that progesterone treatment of female macaques increased susceptibility to vaginal inoculation with simian immunodeficiency virus (SIV) [5], effects that could be reversed by pretreatment with estrogen [6, 7]. Indeed, progesterone has been used to increase susceptibility to SIV among macaques in studies of candidate HIV-1 vaccines and microbicides [8, 9]. The mechanism for these effects has not been determined, although the authors of the original study postulated that vaginal thinning may play a role. If altered vaginal epithelial structure is central to the effect of progesterone on increasing susceptibility to SIV in macaques, these findings may have less relevance to humans, because studies of the effect of DMPA among women have not shown thinning to the extent seen in the nonhuman primate studies [10 12]. Cervical ectopy, or extension of the endocervical columnar epithelium onto the exocervical face, has been associated with hormonal contraceptive use [13, 14] and with increased susceptibility to HIV-1 [15]. Ectopy is a common feature of the immature cervix, which may contribute to the disproportionate risk of HIV-1 faced by young African women [16]. Genital tract infections may also mediate a relationship between hormonal contraception and susceptibility to HIV-1. Epidemiological studies repeatedly have shown that users of hormonal contraceptives have increased risk of cervical chlamydial infection [14, 17 20], which agrees with animal studies showing 360 CID 2007:45 (1 August) HIV/AIDS
2 that estrogen and progesterone enhance growth of Chlamydia trachomatis [21]. Limited animal and human data suggest that use of hormonal contraceptives increases susceptibility to genital herpes [22, 23]. DMPA may decrease vaginal colonization by hydrogen peroxide producing Lactobacillus species [12], which are protective against HIV-1 [24]. On a cellular level, hormonal contraceptives have been associated with cervical and vaginal inflammation [14, 25], increased genital tract expression of the HIV-1 coreceptor CCR5 [26, 27], and mucosal and systemic immune responses that could mediate susceptibility to HIV-1 [28 30]. Finally, hormones may directly enhance the replication of the virus itself [31], which could affect both early infection and the subsequent disease course. Collectively, there are data to argue biological plausibility for hormonal contraception to influence HIV-1, especially initial susceptibility to the virus. Given the multiple mechanisms proposed, the effect may be multifactorial or indirect. However, it is important to recognize that most of these potential biological mechanisms are proposed on the basis of limited data, and it is difficult to discern which, if any, are actually relevant to the risk of HIV-1 transmission. EPIDEMIOLOGICAL STUDIES OF HIV-1 ACQUISITION More than 50 studies have explored whether use of hormonal contraception is a risk factor for HIV-1 infection. Most were cross-sectional, whereas 15 were prospective studies (table 1) [16, 32 45]. A meta-analysis of 28 studies (7 prospective) published in 1999 found that use of oral contraceptive pills was associated with a slightly elevated risk of HIV-1 acquisition (OR, 1.19; 95% CI, ), with greater risk among 7 studies from Africa (OR, 1.65; 95% CI, ) [46]. Five prospective studies published before 1999 examined the risk of HIV-1 acquisition associated with use of DMPA: 2 found statistically significantly increased risks [40, 41], 2 found non statistically significantly increased risks [37, 42], and 1 demonstrated no association [16]. Nearly all of these studies were conducted in Africa, where heterosexual transmission of HIV- 1 infection predominates. Since 1999, 3 large prospective studies have been reported. The first included 5117 women in Rakai, Uganda; 202 acquired HIV-1 (incidence, 1.5 cases per 100 person-years) [43]. This cohort was followed from 1994 to 1999 for a communityrandomized trial of sexually transmitted disease (STD) treatment for prevention of HIV-1 infection [47]. Follow-up, including measurement of current contraception and HIV-1 status, occurred at 10-month intervals. In unadjusted analysis, hormonal contraceptive use was associated with increased risk of acquisition of HIV-1 (risk ratio [RR], 1.56; 95% CI, ). However, after controlling for demographic factors and measures of sexual behavior, no association remained (RR, 0.94). Similar results were found in separate analyses of oral contraceptive pill and DMPA use. In 2004, we reported the results of a prospective study among 1272 female sex workers recruited into an open cohort in Mombasa, Kenya, between 1993 and 2003 [44]. A principal aim of this study was to describe risk factors for HIV-1 acquisition, including hormonal contraception [48]. At monthly follow-up, HIV-1 status and contraceptive method were measured. There were 248 seroconversions (incidence, 8.5 cases per 100 personyears). Both oral contraceptive pills (hazard ratio [HR], 1.5; 95% CI, ) and DMPA (HR, 1.8; 95% CI, ) were associated with greater risk of HIV-1, compared with nonuse of contraception, in multivariate analyses adjusted for demographic characteristics, sexual behavior, condom use, and incident STDs. The largest study to measure the risk of HIV-1 infection associated with hormonal contraceptive use has recently been published [45]. The study recruited 4439 women from family planning clinics in Uganda and Zimbabwe specifically to address this question among a low-risk population. At 3-monthly intervals, contraceptive method was recorded and HIV-1 testing was performed. There were 213 HIV-1 seroconversions (incidence, 2.8 cases per 100 person-years). Overall, neither oral contraceptive pills (HR, 0.99; 95% CI, ) nor DMPA (HR, 1.25; 95% CI, ) was associated with HIV-1 acquisition. However, among women who were negative for herpes simplex virus type 2 (HSV-2) at study enrollment (48% of the study population), both methods increased risk of HIV-1 acquisition (for oral contraceptive pills: HR, 2.85; 95% CI, ; for DMPA: HR, 3.97; 95% CI, ), a finding that was robust in multiple sensitivity analyses. METHODOLOGICAL CONSIDERATIONS It is difficult to reconcile the divergent results of studies examining the effect of hormonal contraceptive use on risk of HIV-1 acquisition. Indeed, a 1998 review argued that substantial differences among studies made summarization of the data impossible [49]. Several methodological issues are important to consider. First, imprecision in measurement of the timing of hormonal contraceptive use relative to HIV-1 acquisition could have introduced bias [50]. This is most problematic for the crosssectional studies, although several prospective studies measured contraceptive use only at study enrollment [38, 40] or infrequently during follow-up [37, 43]. Similarly, infrequent measurement of HIV-1 infection status limited the ability to know with precision which contraceptive method was used at the time of HIV-1 acquisition. Second, differences in sexual behaviors between users and nonusers of hormonal contraception may have led to con- HIV/AIDS CID 2007:45 (1 August) 361
3 Table 1. Prospective studies of the effect of hormonal contraceptive use on HIV-1 acquisition. Reference Year Country Population No. of HIV-1 seroconversions/ no. followed prospectively (incidence a ) Frequency of measurement of HIV-1 infection Contraceptive method; analysis of exposure Measure of association (95% CI) Adjustments Comments Plummer et al. [32] 1991 Kenya CSWs 83/124 (47) Variable monthly to 6-monthly OCP vs. no OCP; use reviewed at follow-up visits, analyzed as use prior to seroconversion Laga et al. [33] 1993 Former Zaire CSWs 68/126 b (9.8) 3-Monthly OCP vs. no OCP; use during the interval 2 6 months prior to seroconversion Saracco et al. [34] 1993 Italy Partners of HIV-1 seropositive men Plourde et al. [35] 1994 Kenya STD clinic attendees with GUD de Vincenzi [36] 1994 Western Europe Partners of HIV-1 seropositive men Bulterys et al. [37] 1994 Rwanda Prenatal clinic attendees 19/343 (3.6) 6-Monthly OCP vs. no OCP; use measured at each follow-up visit 10/81 (48) Monthly OCP vs. no OCP; use during study period 8/74 ( 5) 6-Monthly OCP vs. none; use during study period 31/1150 (1.4) Once, at 2- year follow-up Any hormonal method vs. none; use at the 2-year follow-up visit Weir et al. [38] 1994 Cameroon CSWs 17/68 b (NR) 3-Monthly OCP vs. no OCP; use at enrollment Sinei et al. [39] 1996 Kenya Family planning clinic attendees 17/51 b (2.1) 3-Monthly OCP vs. non-ocp; use during last 6 months vs. no OCP use in last 6 months Ungchusak et al. [40] 1996 Thailand CSWs 15/240 (9.2) 3-Monthly OCP vs. none; injectable vs. none; use at enrollment Kapiga et al. [16] 1998 Tanzania Family planning clinic attendees 75/1370 (3.4) Variable, not defined OCP vs. non-ocp; DMPA vs. non-dmpa; use analyzed as ever during the study period OR, 3.1 ( ); aor, 4.5 ( ) For GUD, chlamydial infection, condom use Very high HIV-1 incidence; OCP users had more sex partners, but similar STD rates and condom use; dose-response relationship between consistency of OCP use and risk of HIV-1 OR, 0.9 (0 13.5) None Few women (!5) used hormonal contraception No seroconversions occurred among 22 women who used oral contraceptives Trend described, but risk estimate not reported; 4/10 seroconverters vs. 18/71 seronegative women used oral contraceptives at enrollment No association; OR, 0.5 (95% CI, ) reported in later systematic review [49] RR, 3.2 ( ); arr, 1.9 ( ) No case-patients used OCPs vs. 5 controls None 11 of these 22 women also used condoms consistently None Very high HIV-1 incidence None Analysis restricted to inconsistent condom users; no seroconversions among consistent condom users For demographic factors, history of STDs, sexual behavior, injections OR, 3.5 ( ) For demographic factors, history of STD symptoms, sexual behavior, and condom use OCP airr, 0.22 ( ); injectable airr, 3.83 ( ) OCP arr, 1.01 ( ); DMPA arr, 0.30 ( ) HIV-1 infection and contraceptive exposure assessed only once; 74% DMPA, 18% OCP, 2% Norplant, 6% combination None Few women used hormonal contraception For demographic factors and syphilis seropositivity For demographic factors, sexual behavior, gonorrhea, and candidiasis Risk estimate for adjusted analysis not presented, but reported to be similar; no use of a comparison group unexposed to contraception (most used IUDs, fewer DMPA or Norplant) All participants used contraception: 88% OCP, 12% IUD, 9% DMPA; thus, the OCP analysis compared OCP users with injectable and IUD users and the injectable analysis compared injectable users with OCP and IUD users 362
4 Martin et al. [41] 1998 Kenya CSWs 111/779 (12.6) Monthly OCP vs. none; DMPA vs. none; monthly measurement with time-dependent analysis, accounting for changing methods Kilmarx et al. [42] 1998 Thailand CSWs 30/285 (4.3) 3-Monthly OCP vs. non-ocp; DMPA vs. non-dmpa; 3-monthly; timedependent analysis Kiddugavu et al. [43] 2003 Uganda Rural communitybased cohort 202/5117 (1.5) 10-Monthly OCP vs. none; injectable vs. none; 10-monthly ascertainment; if contraceptive method changed between visits, the 10-month exposure interval was divided between the 2 methods Lavreys et al. [44] 2004 Kenya CSWs 248/1272 (8.5) Monthly OCP vs. none; DMPA vs. none; Norplant vs. none; monthly ascertainment; time-dependent analysis, including accounting for changing contraceptive method Morrison et al. [45] 2007 Uganda, Zimbabwe Family planning clinic attendees 213/4439 (2.8) 3-Monthly OCP vs. none; DMPA vs. none; 3-monthly ascertainment; time-dependent analysis, including accounting for changing contraceptive method OCP HR, 1.5 ( ); OCP ahr, 1.3 ( ); DMPA HR, 2.2 ( ); DMPA ahr, 2.0 ( ) OCP RR, 2.5 ( ); OCP arr, 1.8 ( ); DMPA RR, 1.5 ( ) OCP IRR, 1.70 ( ); OCP airr, 1.12 ( ); injectable IRR, 1.47 ( ); injectable airr 0.84 ( ) OCP ahr, 1.5 ( ); DMPA ahr, 1.8 ( ); Norplant ahr, 1.6 ( ) OCP ahr, 0.99 ( ); DMPA ahr, 1.25 ( ) For demographic factors, sexual behavior, condom use, and STDs (GUD, vaginal discharge, bacterial vaginosis, candidiasis, gonorrhea) OCP only, for workplace, sexual behavior, chlamydial infection, and GUD For demographic factors, number of sex partners, and condom use For demographic characteristics, sexual behavior, condom use, and STDs (GUG, gonorrhea, cervicitis, bacterial vaginosis, trichomoniasis, candidiasis) For study site, demographic characteristics, measures of participant and partner sexual behavioral risk, coital frequency, and condom use Suggestion of dose-response effect for OCP use: lowdose OCP ahr, 1.3 (95% CI, ) and high-dose OCP ahr, 2.6 (95% CI, ), compared with women using no contraceptive method DMPA users were included in the comparison group for the OCP analysis; similarly, OCP users were in the comparison group for the DMPA analysis No association after adjustment for behavioral confounding; infrequent measurement of contraceptive exposure and HIV-1 outcome Same study population as reference [41], with additional enrollment and follow-up; analyses excluding data presented in the earlier report demonstrated similar findings (OCP ahr, 1.8; 95% CI, , and DMPA ahr, 1.9; 95% CI, ) Statistically significant increased risk of HIV-1 seen among the subgroup of women without HSV-2 infection: OCP ahr, 2.85 (95% CI, ) and DMPA ahr, 3.97 (95% CI, ); non statistically significant increased risk of hormonal contraceptive use on risk of HIV-1 among women who did not use condoms (OCP ahr, 1.47; 95% CI, , and DMPA HR, 1.61; 95% CI, ) and when restricted to women from the Uganda site (OCP ahr, 1.43; 95% CI, , and DMPA ahr, 1.81; 95% CI, ) NOTE. ahr, adjusted hazard ratio; airr, adjusted incident rate ratio; aor, adjusted OR; arr, adjusted relative risk; CSWs, commercial sex workers; DMPA, depot medroxyprogesterone acetate; GUD, genital ulcer disease; HSV-2, herpes simplex virus type 2; IUD, intrauterine device; NR, not reported; OCP, oral contraceptive pills; STD, sexually transmitted disease. a Per 100 person-years. b Nested case-control design. For these studies, the no. of control participants is listed instead of the total no. of participants followed prospectively. HIV-1 incidence is for the entire study population. 363
5 founding. Women using effective contraception may be less inclined to use condoms [51], because they feel protected from pregnancy, or they may have other behaviors that differ from those of women who choose not to use contraception. Some studies controlled for measures of sexual behavior and still found evidence for higher risk [32, 41, 44]. We have argued that behavioral confounding may be a lesser issue among high-risk women, who may use condoms for protection from HIV-1 infection independent of choices for prevention of pregnancy [44]. Along these lines, studies that have shown that elevated risk of HIV-1 acquisition associated with hormonal contraception has tended to be among higher-risk populations, such as sex workers [32, 41, 42, 44]. It is possible that contraceptive use increases risk of HIV-1 infection only in certain populations; there is evidence that probabilities of HIV-1 transmission differ for casual versus monogamous partnerships [52, 53]. However, this explanation is difficult to reconcile with the recent finding of elevated risk for HIV-1 infection only among HSV-2 seronegative users of hormonal contraceptives, who might be considered to be at lower risk [45]. Two prospective studies among HIV-1 serodiscordant couples (high HIV-1 exposure, from a single partner) did not find increased risk of HIV-1 infection among users of oral contraceptive pills [34, 36]. Several studies included contraceptive users in the comparison groups for analyses (e.g., users of oral contraceptive pills versus users of DMPA and/or intrauterine devices) [16, 39, 42], although these other methods may also increase risk of HIV- 1 infection [54]. Other studies were limited by small numbers of HIV-1 seroconversions [35, 36] and few women using hormonal contraception [33, 38]. Few studies had sufficient statistical power to detect the 50% 80% increase in risk of HIV- 1 infection suggested by the Mombasa study [44], and there are no analyses that are sufficiently powered to assess the relationship between other hormonal methods (e.g., implantable methods) and HIV-1 infection [44]. In 2002, a team of investigators from Family Health International reviewed 10 [16, 32 35, 37, 39 41, 43] prospective studies [55], of which 4 were judged to be of higher quality [32, 37, 39, 41]. To this list we would add the recent multicenter study [45] and our study from Mombasa [44] (a later analysis of [41]); both had large sample sizes, frequent measurements of contraception and HIV-1 infection, detailed adjustment for potential confounding factors, and appropriate comparison groups. The fact that the main results of these 2 studies differ, insomuch as one found an overall effect of hormonal contraception on risk of HIV-1 acquisition and the other saw this effect only among HSV-2 seronegative participants, illustrates the limitations for summarizing the available data relating hormonal contraceptive use to susceptibility to HIV-1 infection. Despite careful study design and analysis, all studies of this question have been observational in nature and are therefore open to residual confounding by unmeasured and uncontrolled variables. The best available evidence suggests that risk of HIV- 1 acquisition may be greater for higher-risk populations, such as sex workers, perhaps more so for users of DMPA than for users of oral contraceptive pills [40, 41, 44]. Among the general population, hormonal contraception appears not to increase the risk of HIV-1 infection overall, but women using hormonal methods who are seronegative for HSV-2 infection may be at elevated risk. NATURAL HISTORY OF HIV-1 INFECTION Many of the biological mechanisms proposed to increase risk of HIV-1 infection for women using hormonal contraception could also influence subsequent viral replication, at both early and chronic stages of infection. Among 161 women from the Mombasa cohort, we demonstrated that use of DMPA at the time of time of infection was associated with a higher plasma HIV-1 load set point (by 0.33 log 10 copies/ml) [56]. Viral load set point reflects steady-state viral replication after immunologic containment of primary infection and predicts progression of HIV-1 disease [57 59]. Similarly, one primate study also found higher early SIV load among animals treated with progesterone [5]. Virological studies have demonstrated that women using hormonal contraception (both oral contraceptive pills and DMPA) at the time of HIV-1 infection are more likely to acquire multiple viral genotypes [60], which in turn has been associated with higher plasma viral load set point and faster decrease in CD4 cells [61, 62]. Thus, greater viral diversity during primary HIV-1 infection may mediate the effect of hormonal contraception on later HIV-1 replication and disease progression. Transmission of a more diverse virus population may reflect increased susceptibility to establishment of individual virus strains, either during initial infection or early virus dissemination. Few studies have examined the effects of hormonal contraceptive use among HIV-1 seropositive women during chronic infection. In the US Women s Interagency HIV Study [63], current use of any hormonal method was not related to plasma viral load and was associated with slightly higher CD4 cell counts. We found that use of either oral contraceptive pills or DMPA was associated with increased risk of cervical C. trachomatis infection and cervicitis in a longitudinal assessment of HIV-1 infected women in the Mombasa cohort [64]. Acute STDs may increase plasma HIV-1 load [65], which could mediate faster progression of HIV-1 disease among sex workers [66]. However, among Thai sex workers with prevalent HIV- 364 CID 2007:45 (1 August) HIV/AIDS
6 Figure 1. Proposed links between hormonal contraceptive use and HIV-1. Solid arrows, studies in which hormonal contraception was specifically assessed. Notably, not all studies support these links, and many are based on limited data. Dashed arrows, studies done in other populations that reflect generally agreed-upon principles of HIV-1 infection. STD, sexually transmitted disease. 1 infection, use of hormonal contraception at any time during follow-up was not associated with survival [67]. No other longitudinal studies have assessed the effect of hormonal contraceptive use on progression of HIV-1 disease. HIV-1 TRANSMISSION The physiological changes that might increase risk of HIV-1 acquisition for uninfected users of hormonal contraception could also increase the infectiousness to sex partners of HIV- 1 infected women. The only study to directly examine the effect of hormonal contraception on female-to-male HIV-1 transmission, among HIV-1 discordant European couples early in the epidemic, found no association [68]. Most studies have used detection of HIV-1 infection in genital tract secretions as a proxy measure of HIV-1 infectiousness [69, 70]. Two crosssectional studies from Kenya [71, 72] demonstrated strong associations between hormonal contraceptive use and cervical shedding of HIV-1 DNA, but a US study [73] did not find any association with HIV-1 RNA. The only prospective study measured genital HIV-1 infection before and 2 months after initiation of hormonal contraception [74]. A modest increase in detection of HIV-1 DNA, but not quantity of HIV-1 RNA, was found. Studies of HIV-1 shedding during the menstrual cycle have demonstrated that HIV-1 RNA reaches its highest levels in genital secretions during the luteal phase, when progesterone predominates [75, 76], adding some biological plausibility to the hypothesis that hormonal contraception might increase HIV-1 infectiousness. Indirect mechanisms by which hormonal contraceptive use may contribute to HIV-1 infectivity include increased risk of cervical STDs [64] and cervical inflammation [25], which may increase cervical HIV-1 shedding [77, 78]. Data concerning the effect of hormonal contraception on reactivation of genital herpes, which also increases genital HIV-1 levels [78 80], are inconsistent [81 83]. SUMMARY AND PRIORITIES Epidemiological and biological studies suggest a possible but by no means definitive effect of hormonal contraceptive use on risk of HIV-1 acquisition among uninfected women and on HIV-1 disease progression and infectivity among those who become infected. A summary of the postulated links between hormonal contraception and HIV-1 disease is presented in figure 1. Inconsistent results across studies and incompletely answered questions mandate further research into this important public health issue. What are the priorities? Interpreting the results of studies of hormonal contraception and HIV-1 acquisition. The most recent study of the risk of HIV-1 acquisition associated with hormonal contraceptive use illustrates the uncertainties surrounding this issue: no overall relationship between contraceptive use and susceptibility to HIV-1 infection was seen, but a strikingly elevated risk ( 3- to 4-fold) was found among HSV-2 seronegative women, a subgroup comprising nearly one-half of the study participants [45]. In that study, HSV-2 infection was strongly associated with HIV-1 acquisition, as it has been in many populations [84], and the authors hypothesized that HSV-2 infection may overwhelm any effect of hormonal contraception on risk of HIV- 1 infection for HSV-2 infected women. Reanalysis of other cohort studies is needed to clarify the roles of hormonal contraception and HSV-2 infection in susceptibility to HIV-1 infection. To date, clinical trials have not been conducted, because of arguments that randomizing women who desire hormonal contraception to methods that would necessitate cooperation of male partner(s) (e.g., condoms) could be unethical [55]. If new HIV/AIDS CID 2007:45 (1 August) 365
7 observational analyses are initiated, careful study design must be the priority, with attention to precise measurement of contraception exposure, HIV-1 infection outcome, relevant confounders, and potential sources of bias (e.g., loss to follow-up, sexual behavior, and measures of risk of HIV-1 among sex partners). Studies of adolescents and HIV-1 serodiscordant couples would be particularly informative. Finally, the interaction between biological and behavioral factors influencing risk of HIV-1 acquisition among women using hormonal methods should be a topic for greater investigation. Particularly needed are potential novel strategies for prevention of HIV-1 infection both behavioral (e.g., promotion of barrier methods for contraceptive synergy and protection from HIV-1) and biomedical (e.g., topical estrogen to potentially reverse vaginal mucosal changes from DMPA use [7, 85]). Defining the risk of hormonal contraception on progression of HIV-1 disease. Long-term assessment of the effect of contraceptive use on HIV-1 disease is lacking, particularly studies with clinical end points such as progression to AIDS or death. Longitudinal studies of hormonal contraception s effect during chronic HIV-1 infection on viral load, CD4 cell count, and disease progression are needed, including effects of initiation/ termination and total duration of contraceptive use. Finally, studies of the effect of hormonal contraception on disease progression up to and after initiation of antiretroviral therapy are warranted. Measuring the effect of hormonal contraception on risk of HIV-1 transmission. The potential for hormonal contraception to increase infectiousness of HIV-1 remains unclear. Studies of HIV-1 discordant couples may help quantify this risk, if present, but may not fully reflect transmission dynamics in populations in which concurrent partnerships facilitate spread of HIV-1 infection. Thus, it is critical that long-term studies of surrogate markers of infectiousness be conducted, with measurement at multiple time points after initiation of contraception. These studies should include quantitative analyses of both cell-free and cell-associated HIV-1, because it is unclear which is the best marker for infectivity [70]. Also, studies of contraceptive use and genital detection of HIV-1 among women taking antiretroviral therapy should be a priority. Assessing the biological effect of hormonal contraceptive use on genital viral replication. The biological mechanisms that have been postulated to underlie an effect of hormonal contraceptive use on HIV-1 acquisition are based on limited data. In situ analyses examining genital cell types and/or human tissue models using relevant HIV-1 strains, such as those from early infection, may shed light on whether hormones change the nature or number of target cells for HIV-1 replication. Similarly, biopsy samples from HIV-1 infected women may provide insight into whether use of hormones during chronic infection alters or increases the number of cell targets in the genital mucosa. Translating the data into policy. It is essential that the results of the available studies on the influence of hormonal contraception on HIV-1 infection and their implications be communicated to women and their care providers so that informed contraceptive decisions can be made. The current data paint an inconsistent and incomplete picture, making effective communication difficult and all the more necessary. For HIV-1 uninfected women, a recent World Health Organization (WHO) statement [86] concluded that, for most women, the benefits of hormonal contraception for preventing unintended pregnancy (and its attendant health risks) outweigh any potential increased risk of HIV-1 acquisition. For HIV-1 infected women, contraceptive options are equally desired and important [87], and effective contraception to prevent unintended pregnancies is a key component of efforts to reduce HIV-1 transmission to infants [88]. Current WHO guidelines [89] put no restrictions on the use of hormonal contraception by women with HIV-1 infection. CONCLUSIONS Safe and effective contraceptive choices are essential for women with and at risk for HIV-1 infection. Epidemiological and laboratory investigations suggest that hormonal contraception may have biologically plausible and clinically important effects on susceptibility to HIV-1, infectiousness of HIV-1, and progression of HIV-1 disease, but the data are inconsistent, and many questions remain. Still, it is clear that hormonal contraceptives are not protective against HIV-1 infection, and potentially the most important public health message is that dual protection with condoms should be the goal for women using hormonal contraception. This emphasizes the necessity for cooperation between those working in the fields of reproductive health and prevention of STDs, as well as the needs for increased involvement of men in reproductive health and for novel prevention interventions for women. Policymakers and clinicians must carefully consider how to translate the available data into public health messages that will reach the countries hardest hit by HIV-1 infection and women who are at risk for or who are living with this disease. Acknowledgments Financial support. National Institutes of Health (grant AI-38518, to J.O.). Potential conflicts of interest. All authors: no conflicts. References 1. Joint United Nations Programme on HIV/AIDS. Report on the global AIDS epidemic Available at: data/2006globalreport/default.asp. Accessed 14 September Population Division, United Nations Department of Economic and 366 CID 2007:45 (1 August) HIV/AIDS
8 Social Affairs. World Contraceptive Use Available at: CP2003.pdf. Accessed 14 September Burkman RT Jr. Noncontraceptive effects of hormonal contraceptives: bone mass, sexually transmitted disease and pelvic inflammatory disease, cardiovascular disease, menstrual function, and future fertility. Am J Obstet Gynecol 1994; 170: Food and Drug Administration. Black box warning added concerning long-term use of Depo-Provera Contraceptive Injection. Available at: Accessed 7 February Marx PA, Spira AI, Gettie A, et al. Progesterone implants enhance SIV vaginal transmission and early virus load. Nat Med 1996; 2: Smith SM, Baskin GB, Marx PA. Estrogen protects against vaginal transmission of simian immunodeficiency virus. J Infect Dis 2000; 182: Smith SM, Mefford M, Sodora D, et al. Topical estrogen protects against SIV vaginal transmission without evidence of systemic effect. AIDS 2004; 18: Abel K, Rourke T, Lu D, Bost K, McChesney MB, Miller CJ. Abrogation of attenuated lentivirus-induced protection in rhesus macaques by administration of Depo-Provera before intravaginal challenge with simian immunodeficiency virus mac239. J Infect Dis 2004; 190: Veazey RS, Klasse PJ, Schader SM, et al. Protection of macaques from vaginal SHIV challenge by vaginally delivered inhibitors of virus-cell fusion. Nature 2005; 438: Mauck CK, Callahan MM, Baker J, et al. The effect of one injection of Depo-Provera on the human vaginal epithelium and cervical ectopy. Contraception 1999; 60: Bahamondes L, Trevisan M, Andrade L, et al. The effect upon the human vaginal histology of the long-term use of the injectable contraceptive Depo-Provera. Contraception 2000; 62: Miller L, Patton DL, Meier A, Thwin SS, Hooton TM, Eschenbach DA. Depomedroxyprogesterone-induced hypoestrogenism and changes in vaginal flora and epithelium. Obstet Gynecol 2000; 96: Critchlow CW, Wölner-Hanssen P, Eschenbach DA, et al. Determinants of cervical ectopia and of cervicitis: age, oral contraception, specific cervical infection, smoking, and douching. Am J Obstet Gynecol 1995; 173: Baeten JM, Nyange PM, Richardson BA, et al. Hormonal contraception and risk of sexually transmitted disease acquisition: results from a prospective study. Am J Obstet Gynecol 2001; 185: Moss GB, Clemetson D, D Costa L, et al. Association of cervical ectopy with heterosexual transmission of human immunodeficiency virus: results of a study of couples in Nairobi, Kenya. J Infect Dis 1991; 164: Kapiga SH, Lyamuya EF, Kwihula GK, Hunter DJ. The incidence of HIV infection among women using family planning methods in Dar es Salaam, Tanzania. AIDS 1998; 12: Cottingham J, Hunter D. Chlamydia trachomatis and oral contraceptive use: a quantitative review. Genitourin Med 1992; 68: Avonts D, Sercu M, Heyerick P, Vandermeeren I, Meheus A, Piot P. Incidence of uncomplicated genital infections in women using oral contraception or an intrauterine device: a prospective study. Sex Transm Dis 1990; 17: Louv WC, Austin H, Perlman J, Alexander WJ. Oral contraceptive use and the risk of chlamydial and gonococcal infections. Am J Obstet Gynecol 1989; 160: Morrison CS, Bright P, Wong EL, et al. Hormonal contraceptive use, cervical ectopy, and the acquisition of cervical infections. Sex Transm Dis 2004; 31: Washington AE, Gove S, Schachter J, Sweet RL. Oral contraceptives, Chlamydia trachomatis infection, and pelvic inflammatory disease: a word of caution about protection. JAMA 1985; 253: Kaushic C, Ashkar AA, Reid LA, Rosenthal KL. Progesterone increases susceptibility and decreases immune responses to genital herpes infection. J Virol 2003; 77: Smith JS, Herrero R, Munoz N, et al. Prevalence and risk factors for herpes simplex virus type 2 infection among middle-age women in Brazil and the Philippines. Sex Transm Dis 2001; 28: Martin HL, Richardson BA, Nyange PM, et al. Vaginal lactobacilli, microbial flora, and risk of human immunodeficiency virus type 1 and sexually transmitted disease acquisition. J Infect Dis 1999; 180: Ghanem KG, Shah N, Klein RS, et al. Influence of sex hormones, HIV status, and concomitant sexually transmitted infection on cervicovaginal inflammation. J Infect Dis 2005; 191: Prakash M, Kapembwa MS, Gotch F, Patterson S. Oral contraceptive use induces upregulation of the CCR5 chemokine receptor on CD4(+) T cells in the cervical epithelium of healthy women. J Reprod Immunol 2002; 54: Prakash M, Patterson S, Gotch F, Kapembwa MS. Ex vivo analysis of HIV-1 co-receptors at the endocervical mucosa of women using oral contraceptives. BJOG 2004; 111: Hunt JS, Miller L, Platt JS. Hormonal regulation of uterine macrophages. Dev Immunol 1998; 6: Zang YC, Halder JB, Hong J, Rivera VM, Zhang JZ. Regulatory effects of estriol on T cell migration and cytokine profile: inhibition of transcription factor NF-kappa B. J Neuroimmunol 2002; 124: Gillgrass AE, Ashkar AA, Rosenthal KL, Kaushic C. Prolonged exposure to progesterone prevents induction of protective mucosal responses following intravaginal immunization with attenuated herpes simplex virus type 2. J Virol 2003; 77: Furth PA, Westphal H, Hennighausen L. Expression from the HIV- LTR is stimulated by glucocorticoids and pregnancy. AIDS Res Hum Retroviruses 1990; 6: Plummer FA, Simonsen JN, Cameron DW, et al. Cofactors in malefemale sexual transmission of human immunodeficiency virus type 1. J Infect Dis 1991; 163: Laga M, Manoka A, Kivuvu M, et al. Non-ulcerative sexually transmitted diseases as risk factors for HIV-1 transmission in women: results from a cohort study. AIDS 1993; 7: Saracco A, Musicco M, Nicolosi A, et al. Man-to-woman sexual transmission of HIV: longitudinal study of 343 steady partners of infected men. J Acquir Immune Defic Syndr 1993; 6: Plourde PJ, Pepin J, Agoki E, et al. Human immunodeficiency virus type 1 seroconversion in women with genital ulcers. J Infect Dis 1994; 170: de Vincenzi I. A longitudinal study of human immunodeficiency virus transmission by heterosexual partners. European Study Group on Heterosexual Transmission of HIV. N Engl J Med 1994; 331: Bulterys M, Chao A, Habimana P, Dushimimana A, Nawrocki P, Saah A. Incident HIV-1 infection in a cohort of young women in Butare, Rwanda. AIDS 1994; 8: Weir SS, Feldblum PJ, Roddy RE, Zekeng L. Gonorrhea as a risk factor for HIV acquisition. AIDS 1994; 8: Sinei SKA, Fortney JA, Kigondu CS, et al. Contraceptive use and HIV infection in Kenyan family planning clinic attenders. Int J STD AIDS 1996; 7: Ungchusak K, Rehle T, Thammapornpilap P, Spiegelman D, Brinkmann U, Siraprapasiri T. Determinants of HIV infection among female commercial sex workers in northeastern Thailand: results from a longitudinal study. J Acquir Immune Defic Syndr Hum Retrovirol 1996;12: Martin HL Jr, Nyange PM, Richardson BA, et al. Hormonal contraception, sexually transmitted diseases, and risk of heterosexual transmission of human immunodeficiency virus type 1. J Infect Dis 1998; 178: Kilmarx PH, Limpakarnjanarat K, Mastro TD, et al. HIV-1 seroconversion in a prospective study of female sex workers in northern Thailand: continued high incidence among brothel-based women. AIDS 1998; 12: Kiddugavu M, Makumbi F, Wawer MJ, et al. Hormonal contraceptive use and HIV-1 infection in a population-based cohort in Rakai, Uganda. AIDS 2003; 17: HIV/AIDS CID 2007:45 (1 August) 367
9 44. Lavreys L, Baeten JM, Martin HL Jr, et al. Hormonal contraception and risk of HIV-1 acquisition: results of a 10-year prospective study. AIDS 2004; 18: Morrison CS, Richardson BA, Mmiro F, et al. Hormonal contraception and the risk of HIV acquisition. The Hormonal Contraception and the Risk of HIV (HC-HIV) Study Group. AIDS 2007; 21: Wang CC, Reilly M, Kreiss JK. Risk of HIV infection in oral contraceptive pill users: a meta-analysis. J Acquir Immune Defic Syndr 1999; 21: Wawer MJ, Sweankambo NK, Serwadda D, et al. Control of sexually transmitted diseases for AIDS prevention in Uganda: a randomised community trial. Lancet 1999; 353: Martin HL Jr, Jackson DJ, Mandaliya K, et al. Preparation for AIDS vaccine evaluation in Mombasa, Kenya: establishment of seronegative cohorts of commercial sex workers and trucking company employees. AIDS Res Hum Retroviruses 1994; 10(Suppl 2):S Stephenson JM. Systematic review of hormonal contraception and risk of HIV transmission: when to resist meta-analysis. AIDS 1998; 12: White E, Hunt JR, Casso D. Exposure measurement in cohort studies: the challenges of prospective data collection. Epidemiol Rev 1998; 20: Sangi-Haghpeykar H, Posner SF, Poindexter AN 3rd. Consistency of condom use among low-income hormonal contraceptive users. Perspect Sex Reprod Health 2005; 37: Downs AM, de Vincenzi I. Probability of heterosexual transmission of HIV: relationship to the number of unprotected sexual contacts. European Study Group in Heterosexual Transmission of HIV. J Acquir Immune Defic Syndr Hum Retrovirol 1996; 11: Baeten JM, Richardson BA, Lavreys L, et al. Female-to-male infectivity of HIV-1 among circumcised and uncircumcised Kenyan men. J Infect Dis 2005; 191: Kapiga SH, Shao JF, Lwihula GK, Hunter DJ. Risk factors for HIV infection among women in Dar-es-Salaam, Tanzania. J Acquir Immune Defic Syndr 1994; 7: Morrison CS, Richardson BA, Celentano DD, et al. Prospective clinical trials designed to assess the use of hormonal contraceptives and risk of HIV acquisition. J Acquir Immune Defic Syndr 2005; 38:S Lavreys L, Baeten JM, Kreiss JK, et al. Injectable contraceptive use and genital ulcer disease during the early phase of HIV-1 infection increase plasma virus load in women. J Infect Dis 2004; 189: Schacker TW, Hughes JP, Shea T, Coombs RW, Corey L. Biological and virologic characteristics of primary HIV infection. Ann Intern Med 1998; 128: Henrard DR, Phillips JF, Muenz LR, et al. Natural history of HIV-1 cell-free viremia. JAMA 1995; 274: Lavreys L, Baeten JM, Chohan V, et al. Higher set point plasma viral load and more-severe acute HIV type 1 (HIV-1) illness predict mortality among high-risk HIV-1 infected African women. Clin Infect Dis 2006; 42: Sagar M, Lavreys L, Baeten JM, et al. Identification of modifiable factors that affect the genetic diversity of the transmitted HIV-1 population. AIDS 2004; 18: Sagar M, Lavreys L, Baeten JM, et al. Infection with multiple human immunodeficiency virus type 1 variants is associated with faster disease progression. J Virol 2003; 77: Gottlieb GS, Nickle DC, Jensen MA, et al. Dual HIV-1 infection associated with rapid disease progression. Lancet 2004; 363: Cejtin HE, Jacobson L, Springer G, et al. Effect of hormonal contraceptive use on plasma HIV-1-RNA levels among HIV-infected women. AIDS 2003; 17: Lavreys L, Chohan V, Overbaugh J, et al. Hormonal contraception and risk of cervical infections among HIV-1-seropositive Kenyan women. AIDS 2004; 18: Anzala AO, Simonsen JN, Kimani J, et al. Acute sexually transmitted infections increase human immunodeficiency virus type 1 plasma viremia, increase plasma type 2 cytokines, and decrease CD4 cell counts. J Infect Dis 2000; 182: Anzala OA, Nagelkerke NJ, Bwayo JJ, et al. Rapid progression to disease in African sex workers with human immunodeficiency virus type 1 infection. J Infect Dis 1995; 171: Kilmarx PH, Limpakarnjanarat K, Kaewkungwal J, et al. Disease progression and survival with human immunodeficiency virus type 1 subtype E infection among female sex workers in Thailand. J Infect Dis 2000; 181: European Study Group on Heterosexual Transmission of HIV. Comparison of female to male and male to female transmission of HIV in 563 stable couples. BMJ 1992; 304: Pedraza MA, del Romero J, Roldan F, et al. Heterosexual transmission of HIV-1 is associated with high plasma viral load levels and a positive viral isolation in the infected partner. J Acquir Immune Defic Syndr 1999; 21: Baeten JM, Overbaugh J. Measuring the infectiousness of persons with HIV-1: opportunities for preventing sexual HIV-1 transmission. Curr HIV Res 2003; 1: Clemetson DB, Moss GB, Willerford DM, et al. Detection of HIV DNA in cervical and vaginal secretions: prevalence and correlates among women in Nairobi, Kenya. JAMA 1993; 269: Mostad SB, Overbaugh J, DeVange DM, et al. Hormonal contraception, vitamin A deficiency, and other risk factors for shedding of HIV-1 infected cells from the cervix and vagina. Lancet 1997; 350: Kovacs A, Wasserman SS, Burns D, et al. Determinants of HIV-1 shedding in the genital tract of women. Lancet 2001; 358: Wang CC, McClelland RS, Overbaugh J, et al. The effect of hormonal contraception on genital tract shedding of HIV-1. AIDS 2004; 18: Benki S, Mostad SB, Richardson BA, Mandaliya K, Kreiss JK, Overbaugh J. Cyclic shedding of HIV-1 RNA in cervical secretions during the menstrual cycle. J Infect Dis 2004; 189: Reichelderfer PS, Coombs RW, Wright DJ, et al. Effect of menstrual cycle on HIV-1 levels in the peripheral blood and genital tract. WHS 001 Study Team. AIDS 2000; 14: McClelland RS, Wang CC, Mandaliya K, et al. Treatment of cervicitis is associated with decreased cervical shedding of HIV-1. AIDS 2001; 15: Baeten JM, McClelland RS, Corey L, et al. Vitamin A supplementation and genital shedding of herpes simplex virus among HIV-1-infected women: a randomized clinical trial. J Infect Dis 2004; 189: Mbopi-Kéou FX, Grésenguet G, Mayaud P, et al. Interactions between herpes simplex virus type 2 and human immunodeficiency virus type 1 infection in African women: opportunities for intervention. J Infect Dis 2000; 182: McClelland RS, Wang CC, Overbaugh J, et al. Association between cervical shedding of herpes simplex virus and HIV-1. AIDS 2002; 16: Mostad SB, Kreiss JK, Ryncarz AJ, et al. Cervical shedding of herpes simplex virus in human immunodeficiency virus-infected women: effects of hormonal contraception, pregnancy, and vitamin A deficiency. J Infect Dis 2000; 181: Cherpes TL, Melan MA, Kant JA, Cosentino LA, Meyn LA, Hillier SL. Genital tract shedding of herpes simplex virus type 2 in women: effects of hormonal contraception, bacterial vaginosis, and vaginal group B Streptococcus colonization. Clin Infect Dis 2005; 40: McClelland RS, Wang CC, Richardson BA, et al. A prospective study of hormonal contraceptive use and cervical shedding of herpes simplex virus in human immunodeficiency virus type 1 seropositive women. J Infect Dis 2002; 185: Freeman EE, Weiss HA, Glynn JR, Cross PL, Whitworth JA, Hayes RJ. Herpes simplex virus 2 infection increases HIV acquisition in men and women: systematic review and meta-analysis of longitudinal studies. AIDS 2006; 20: Mingjia L, Short R. How oestrogen or progesterone might change a woman s susceptibility to HIV-1 infection. Aust N Z J Obstet Gynaecol 2002; 42: CID 2007:45 (1 August) HIV/AIDS
10 86. World Health Organization (WHO). Hormonal contraception and HIV: science and policy. Available at: Accessed 1 May Balkus J, Bosire R, John-Stewart G, et al. High uptake of postpartum hormonal contraception among HIV-1-seropositive women in Kenya. Sex Transm Dis 2007; 34: World Health Organization (WHO). Prevention of HIV in infants and young children: review of evidence and WHO s activities. Available at: Accessed 13 September World Health Organization (WHO). Medical eligibility criteria for contraceptive use: Available at: publications/mec/mec.pdf. Accessed 14 September HIV/AIDS CID 2007:45 (1 August) 369
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