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1.
Contracept X ; 4: 100080, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35965654

RESUMO

Objective: To characterize return to ovulation after injecting Sayana Press (104 mg/0.65 mL medroxyprogesterone acetate [MPA] in the Uniject device) every 4 months for 1 year of treatment. Study design: We followed a subset of women for return to ovulation in a trial that demonstrated Sayana Press remains highly effective when the subcutaneous reinjection interval is extended from 3 to 4 months. We measured serum progesterone in weeks 38 to 42 and 46 to 50 after a final (third) injection and used a concentration ≥4.7 ng/mL as a surrogate for ovulation. We also performed pharmacokinetic and pharmacodynamic modeling to predict differences in MPA accumulation and return to ovulation had - contrary to fact - injections been given every 3 months. Results: Ten of 19 women (53%; 95% confidence interval: 29-76) ovulated within 50 weeks of their last injection. We predicted that typical 12-month trough MPA concentrations are 34% lower (0.46 vs 0.69 ng/mL) and the median time from last dose to ovulation is 1.1 months shorter (13.1 vs 14.2 months) when injections are given every four months for 1 year. Conclusion: Extending the Sayana Press reinjection interval from 3 to 4 months leads to less drug accumulation, without a noticeable loss in efficacy. Although the Sayana Press patient leaflet specifies that over 80% of women desiring pregnancy will conceive within a year of stopping the method (independent of treatment duration), our empirical and modeling results indicate women should anticipate waiting a year or more for fertility to return after repeat dosing, with a somewhat shorter delay were the reinjection interval extended to four months. Implications: Providers should counsel women regarding the distinct possibility that return to fertility will take a year or longer following repeat use of Sayana Press. Extending the dosing interval from 3 to 4 months would result in approximately a 1-month shorter delay, without any appreciable reduction in contraceptive efficacy.

2.
Contraception ; 113: 95-100, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35483431

RESUMO

OBJECTIVE: We assessed the acceptability of subcutaneous depot-medroxyprogesterone acetate 104 mg (Sayana® Press) when injected every 4 months for 12 months. STUDY DESIGN: We assessed acceptability using questionnaires within a clinical trial to evaluate contraceptive effectiveness of Sayana® Press when the reinjection interval was extended from 3 to 4 months. We enrolled 750 women aged 18 to 35 years and at risk of pregnancy at 3 centers in Brazil, Chile, and the Dominican Republic who agreed to use Sayana® Press every 4 months for 12 months. Acceptability outcomes included responses to questions about perception of bleeding patterns and side effects, likes, and dislikes about the regimen. We descriptively compared outcomes across study centers and between those who completed the study and those who discontinued early. RESULTS: Across the 3 centers, participants differed in age, marital status, years of schooling, and race. At the final visit, 90% reported being satisfied with Sayana® Press and 75% reported preferring to use this contraceptive every 4 months. The most common reasons women liked using Sayana® Press were for its duration of effectiveness, followed by amenorrhea. The most common dislike, when a reason was identified, was its effect on uterine bleeding, including amenorrhea reported by some participants. We also observed center-level differences in the proportion of women who liked amenorrhea. CONCLUSIONS: Satisfaction with Sayana® Press injected every 4 months was high across the 3 demographically diverse Latin-American centers. However, participants had varied feelings towards contraceptive-induced amenorrhea. IMPLICATIONS: We found that Sayana® Press when injected every 4 months was highly acceptable among women in 3 Latin American settings despite differences in their feelings toward contraceptive-induced amenorrhea. Our results suggest that there will be interest in using this method every 4 months if introduced into these settings.


Assuntos
Anticoncepcionais Femininos , Acetato de Medroxiprogesterona , Adolescente , Adulto , Amenorreia/induzido quimicamente , Brasil , Chile , Anticoncepcionais Femininos/efeitos adversos , República Dominicana , Feminino , Humanos , Injeções Subcutâneas , Acetato de Medroxiprogesterona/efeitos adversos , Adulto Jovem
3.
EClinicalMedicine ; 44: 101273, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35128365

RESUMO

BACKGROUND: Sayana Press® is a 3-monthly contraceptive injection approved by regulatory agencies in more than 40 countries worldwide. Existing effectiveness and pharmacokinetics (PK) data suggest that high contraceptive efficacy may be maintained if the reinjection interval of Sayana Press is extended from 3 to 4 months. METHODS: We conducted a phase 3 trial at three sites in the Dominican Republic, Brazil, and Chile from September 2017 through April 2020. We enrolled 750 women at risk of pregnancy who agreed to use Sayana Press off-label every 4 months (3 treatment cycles) for 12 months. The effectiveness cohort included 710 participants randomized equally to receive injections in the abdomen or thigh. Forty additional participants received injections in the back of the upper arm for comparative PK analyses. The primary outcome was pregnancy, defined by a positive urine pregnancy test confirmed by ultrasound and/or serum human chorionic gonadotropin. Secondary outcomes included PK, safety, and acceptability. Laboratory and trial Sponsor staff were blind to injection site. This study is registered with ClinicalTrials.gov, number NCT03154125. FINDINGS: There were no pregnancies during follow-up; the Pearl Index during 629.3 woman-years (WY) of follow-up in the primary effectiveness analysis was 0.00 (95% CI 0.00, 0.59). Pharmacokinetic profiles differed by injection site, with higher geometric mean (GM) medroxyprogesterone acetate concentrations for the abdomen than the thigh and arm. At month 8, significantly higher GM concentrations were observed in the abdomen and the thigh as compared to the arm, as well as at month 12 in the abdomen as compared to the arm. Injection site reactions were reported by 10.7% of participants. INTERPRETATION: Both pregnancy and PK results confirm that Sayana Press is a highly effective contraceptive method when administered every 4 months. These findings may inform modification of the dosing schedule, or duration of the grace period for reinjection, or both, to reduce overall drug exposure while maintaining contraceptive efficacy. FUNDING: This work is made possible by the generous support of the American people through the U.S. Agency for International Development (USAID), provided to FHI 360 through Cooperative Agreement AID-OAA-A-15-00,045, and a grant from the Gates Foundation. The contents are the responsibility of FHI 360 and do not necessarily reflect the views of USAID, the United States Government, or the Gates Foundation, nor does any mention of trade names, commercial products, or organizations imply endorsement by FHI 360, USAID, the United States Government, or the Gates Foundation.

4.
Contracept X ; 3: 100070, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34746745

RESUMO

OBJECTIVES: To identify the lowest dose of Depo-Provera that, when administered off-label subcutaneously, suppressed ovulation and had a pharmacokinetic profile consistent with a 4-month contraceptive effect. STUDY DESIGN: We conducted a randomized, multicenter, parallel-group study to evaluate the pharmacokinetics (PK) and pharmacodynamics (PD) of medroxyprogesterone acetate (MPA) after subcutaneous injection of three different doses of Depo-Provera. We randomized sixty women between 18 and 40 years of age at low risk of pregnancy with confirmed ovulation and body mass index of 18 to 35 kg/m2 to receive a single injection of 45, 75 or 105 mg of Depo-Provera, or a single injection of Depo-subQ provera 104 as a reference drug (15 women per group) and followed them for 7.5 months. We evaluated suppression of ovulation as the primary outcome, and MPA concentrations, pharmacokinetic parameters, safety, and local tolerability as secondary outcomes. RESULTS: Five women ovulated within four months of treatment initiation (three in the 45 mg group and two in the 75 mg group). MPA levels associated with ovulation were in general low, largely ≤ 0.2 ng/mL (the presumed contraceptive threshold). No women in either the 105 mg group or the Depo-subQ provera 104 group ovulated within four months. The PK parameters including Cmax, C119, and AUC0-119 for these 2 groups were similar but not equivalent. CONCLUSION: A dose of 105 mg of Depo-Provera injected subcutaneously was the lowest tested dose that consistently suppressed ovulation and maintained serum MPA levels consistent with contraceptive effect for at least 4 months. The PK and PD results for the 105 mg dose were similar to Depo-subQ provera 104 over this period.

5.
Contracept X ; 2: 100039, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32995746

RESUMO

OBJECTIVE: The objective was to characterize and compare in vivo rates of levonorgestrel (LNG) release from Sino-implant (II) and Jadelle® contraceptive implants. STUDY DESIGN: We sampled 48 Sino-implant (II) and 49 Jadelle® explant sets for residual LNG content from participants treated for up to 51 months in a randomized contraceptive efficacy trial in the Dominican Republic (DR). Additional Sino-implant (II) explants were obtained from 8 women who became pregnant in the DR trial and 10 who contributed 3 to 5 years of use in a cohort study in China. Baseline LNG loads were estimated from five unused implant sets per device type. Release profiles were estimated using mixture models that captured initial burst fractions and compared with efficacy and pharmacokinetics data from the DR trial. RESULTS: Estimated baseline LNG loads for Sino-implant (II) and Jadelle® were 142.8 mg and 150.5 mg, respectively (vs. the labeled 150 mg). There was an initial burst release of drug (5.6% and 7.9%, respectively) followed by an exponential decrease in LNG content evident for each device. Release rates were significantly lower for Sino-implant (II) throughout the treatment period, with estimated rates after 3 years of 24.2 mcg/day and 29.0 mcg/day for Sino-implant (II) and Jadelle®, respectively. The estimated Sino-implant (II) rate after 3 years was similar to the predicted rate after 5 years (23.6 mcg/day) for Jadelle® (rate ratio: 1.03; 95% confidence interval: 0.92-1.13). CONCLUSIONS: Sino-implant (II) LNG release rates were significantly lower than Jadelle® with Sino-implant (II) rates through year 3 comparable to Jadelle® rates through year 5. These results reinforce the 3-year duration of action for which Sino-implant (II) was prequalified by the World Health Organization. IMPLICATIONS: This analysis confirms the WHO prequalification of Sino-implant (II) for 3 years of use and supports different durations of action for Jadelle® and Sino-implant (II). It provides additional evidence that this approach can complement efficacy trials in determining duration of action of hormonal contraceptives in general.

6.
J Adolesc Health ; 67(5): 700-707, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32389457

RESUMO

PURPOSE: The purpose of this study was to compare the effectiveness, safety, and experiences with side effects of self-injected and provider-administered injectable contraception between young (18-24 years) versus older (≥25 years) women. METHODS: We conducted secondary analysis of data from a 12-month randomized controlled trial in Malawi, where a total of 731 women were randomized to receive subcutaneous depot medroxyprogesterone acetate (DMPA-SC) administered by a provider or be trained to self-inject subcutaneous depot medroxyprogesterone acetate. Data collectors contacted women after the reinjection window at 3, 6, and 9 months to collect data on discontinuation and women's experiences, including adverse events. Twelve months after enrollment or at early discontinuation, women had their final interview, including pregnancy testing. We compared continuation, pregnancy, safety, and side effects among young women versus older women. RESULTS: Among self-injectors, there were no significant differences found in continuation by age (p = .345) with continuation rates at 12 months of 79% for young women and 69% for older women. Continuation rates were lower for both age groups with provider-administered injections. In the provider-administered group, continuation rates among young women (39%) were lower than among older women (49%) (p = .047). The distribution of reasons for discontinuation did not differ significantly by age for those receiving provider injections (p = .698). However, younger self-injectors were less likely to miss the reinjection window than older self-injectors (p = .011). Age did not significantly influence pregnancy or safety. CONCLUSIONS: With evidence of potential higher impact on continuation and no safety concerns, we recommend self-injection be added to the contraception options available to young women in low-resource settings.


Assuntos
Agentes Comunitários de Saúde , Comportamento Contraceptivo/etnologia , Anticoncepcionais Femininos/efeitos adversos , Acetato de Medroxiprogesterona/efeitos adversos , Autoadministração , Adolescente , Adulto , Comportamento Contraceptivo/psicologia , Anticoncepcionais Femininos/administração & dosagem , Feminino , Humanos , Injeções Subcutâneas , Malaui , Acetato de Medroxiprogesterona/administração & dosagem , Satisfação do Paciente , Gravidez , Adulto Jovem
7.
Clin Infect Dis ; 71(10): e624-e632, 2020 12 17.
Artigo em Inglês | MEDLINE | ID: mdl-32185385

RESUMO

BACKGROUND: Antimicrobial resistance in Mycoplasma genitalium (MG), a cause of urethritis, is a growing concern. Yet little is known about the geographic distribution of MG resistance in the United States or about its associated clinical outcomes. We evaluated the frequency of MG among men with urethritis, resistance mutations, and posttreatment symptom persistence. METHODS: We enrolled men presenting with urethritis symptoms to 6 US sexually transmitted disease (STD) clinics during June 2017-July 2018; men with urethritis were eligible for follow-up contact and, if they had persistent symptoms or MG, a chart review. Urethral specimens were tested for MG and other bacterial STDs. Mutations in 23S ribosomal ribonucleic acid (rRNA) loci (macrolide resistance-associated mutations [MRMs]) and in parC and gyrA (quinolone-associated mutations) were detected by targeted amplification/Sanger sequencing. RESULTS: Among 914 evaluable participants, 28.7% (95% confidence interval [CI], 23.8-33.6) had MG. Men with MG were more often Black (79.8% vs 66%, respectively), <30 years (72.9% vs 56.1%, respectively), and reported only female partners (83.7% vs 74.2%, respectively) than men without MG. Among MG-positive participants, 64.4% (95% CI, 58.2-70.3%) had MRM, 11.5% (95% CI, 7.9-16.0%) had parC mutations, and 0% had gyrA mutations. Among participants treated with azithromycin-based therapy at enrollment and who completed the follow-up survey, persistent symptoms were reported by 25.8% of MG-positive/MRM-positive men, 13% of MG-positive/MRM-negative men, and 17.2% of MG-negative men. CONCLUSIONS: MG infection was common among men with urethritis; the MRM prevalence was high among men with MG. Persistent symptoms following treatment were frequent among men both with and without MG.


Assuntos
Infecções por Mycoplasma , Mycoplasma genitalium , Uretrite , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Farmacorresistência Bacteriana , Feminino , Humanos , Macrolídeos , Masculino , Mutação , Infecções por Mycoplasma/tratamento farmacológico , Infecções por Mycoplasma/epidemiologia , Mycoplasma genitalium/genética , Prevalência , Uretrite/tratamento farmacológico , Uretrite/epidemiologia
8.
Int J Emerg Med ; 12(1): 5, 2019 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-31179944

RESUMO

INTRODUCTION: Triage protocols standardize and improve patient care in accident and emergency departments (A&Es). Kenyatta National Hospital (KNH), the largest public tertiary hospital in East Africa, is resource-limited and was without A&E-specific triage protocols. OBJECTIVES: We sought to standardize patient triage through implementation of the South African Triage Scale (SATS). We aimed to (1) assess the reliability of triage decisions among A&E healthcare workers following an educational intervention and (2) analyze the validity of the SATS in KNH's A&E. METHODS: Part 1 was a prospective, before and after trial utilizing an educational intervention and assessing triage reliability using previously validated vignettes administered to 166 healthcare workers. Part 2 was a triage chart review wherein we assessed the validity of the SATS in predicting patient disposition outcomes by inclusion of 2420 charts through retrospective, systematic sampling. RESULTS: Healthcare workers agreed with an expert defined triage standard for 64% of triage scenarios following an educational intervention, and had a 97% agreement allowing for a one-level discrepancy in the SATS score. There was "good" inter-rater agreement based on an intraclass correlation coefficient and quadratic weighted kappa. We analyzed 1209 pre-SATS and 1211 post-SATS patient charts and found a non-significant difference in undertriage and statistically significant decrease in overtriage rates between the pre- and post-SATS cohorts (undertriage 3.8 and 7.8%, respectively, p = 0.2; overtriage 70.9 and 62.3%, respectively, p < 0.05). The SATS had a sensitivity of 92.2% and specificity of 37.7% for predicting admission, death, or discharge in the A&E. CONCLUSION: Healthcare worker triage decisions using the SATS were more consistent with expert opinion following an educational intervention. The SATS also performed well in predicting outcomes with high sensitivity and satisfactory levels of both undertriage and overtriage, confirming the SATS as a contextually appropriate triage system at a major East African A&E.

9.
Glob Health Sci Pract ; 7(1): 54-65, 2019 03 22.
Artigo em Inglês | MEDLINE | ID: mdl-30894394

RESUMO

OBJECTIVE: To assess the supply- and demand-side factors influencing continued use of the injectable contraceptive subcutaneous depot medroxyprogesterone acetate (DMPA-SC). METHODS: We conducted a 12-month randomized controlled trial in Malawi to measure DMPA-SC continuation rates. A total of 731 women presenting to clinic-based providers (CBPs) at 6 Ministry of Health clinics or to community health workers (CHWs) in rural communities were randomized to receive DMPA-SC administered by a provider or be trained to self-inject DMPA-SC. Data collectors contacted women after the reinjection window at 3, 6, and 9 months to collect data on discontinuation and women's experiences. Twelve months after enrollment or at early discontinuation, women had their final interview, including pregnancy testing. We compared continuation, pregnancy, and safety by whether DMPA-SC or self-injection training was provided by CHWs versus CBPs. We also conducted an exploratory analysis assessing the association between women's sociodemographic factors and the risk for discontinuation using stratified Cox proportional hazards models. FINDINGS: The type of provider did not seem to influence continuation, pregnancy, or safety. As reported previously, women in the self-injection group were significantly less likely to discontinue the method compared with women in the provider-administered group (hazard ratio, 0.43; P<.001). The risk for discontinuation was also different among health facility catchment sites (P<.001). No other assessed sociodemographic factors were found to significantly influence the risk for discontinuation. CONCLUSIONS: Public-sector CHWs can safely and effectively provide DMPA-SC and train women to self-inject DMPA-SC in low-resource settings. DMPA-SC continuation did not seem to be influenced by the type of provider, whether CBP or CHW, or women's sociodemographic characteristics.


Assuntos
Agentes Comunitários de Saúde , Comportamento Contraceptivo , Anticoncepção/métodos , Anticoncepcionais Femininos , Acetato de Medroxiprogesterona , Serviços de Saúde Rural , Autocuidado , Adolescente , Adulto , Instituições de Assistência Ambulatorial , Anticoncepcionais Femininos/administração & dosagem , Preparações de Ação Retardada/administração & dosagem , Feminino , Pessoal de Saúde , Recursos em Saúde , Humanos , Injeções Subcutâneas , Malaui , Acetato de Medroxiprogesterona/administração & dosagem , Educação de Pacientes como Assunto , Satisfação do Paciente , Gravidez , População Rural , Adulto Jovem
10.
Contraception ; 98(5): 418-422, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29758176

RESUMO

OBJECTIVE: To describe women's experiences with subcutaneous depot medroxyprogesterone acetate (DMPA-SC) to inform scale-up of self-administered DMPA-SC. STUDY DESIGN: We conducted a 12-month randomized controlled trial in Malawi to measure DMPA-SC continuation rates. A total of 731 women presenting at six Ministry of Health clinics or to community health workers (CHWs) in rural communities were randomized to receive DMPA-SC administered by a provider or be trained to self-inject DMPA-SC. Data collectors contacted women after the reinjection window at 3, 6 and 9 months to collect data on satisfaction and use; self-injectors were also queried about storage and disposal of DMPA-SC. We compared frequencies of injection experiences and satisfaction by study group and over time. RESULTS: Ninety-two percent of women who self-injected felt it was easy to do the first time. Women in the self-administered group primarily gave themselves the injection versus having someone else inject them; stored DMPA-SC mostly in bags, often in ways to keep the product away from others; and properly disposed of DMPA-SC in pit latrines. Women in both groups used printed calendars to remember when to get/be given their next injection. Both groups reported high satisfaction with DMPA-SC. CONCLUSIONS: Women in low-resource settings can be successfully trained by public sector CHWs and clinic-based providers to self-inject and to appropriately store and dispose of DMPA-SC. DMPA-SC and self-injection are acceptable and feasible in a low-resource setting. IMPLICATIONS: Self-administered and provider-administrated DMPA-SC should be scaled up, and the lessons learned during our trial should be applied to future scale-up efforts.


Assuntos
Anticoncepcionais Femininos/administração & dosagem , Acetato de Medroxiprogesterona/administração & dosagem , Satisfação do Paciente/estatística & dados numéricos , Adulto , Feminino , Humanos , Injeções Subcutâneas/psicologia , Autoadministração/psicologia
11.
Lancet Glob Health ; 6(5): e568-e578, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29526707

RESUMO

BACKGROUND: Injectable contraceptives are popular in sub-Saharan Africa but have high discontinuation rates due partly to the need for provider-administered re-injection. We compared continuation rates of women who self-injected subcutaneous depot medroxyprogesterone acetate (DMPA-SC) and women who received DMPA-SC from a health-care provider, including community health workers (CHWs). METHODS: We did an open-label randomised controlled trial based at six Ministry of Health clinics in rural Mangochi District, Malawi. Health-care providers recruited adult women who presented at the six clinics or to CHWs in rural communities in the clinic catchment areas. Participants received DMPA-SC and were randomised (1:1) to receive provider-administered injections or training in how to self-inject DMPA-SC. Randomisation was done via a computer-generated block randomisation schedule with block sizes of four, six, and eight and stratified by study site, generated by an independent statistician. Self-injectors administered the first injection under observation and were sent home with three doses, written instructions, and a calendar. The provider-administered group received a DMPA-SC injection and a calendar, and were asked to return for subsequent injections. Data collectors contacted participants after the 14-week re-injection window at 3, 6, and 9 months to collect continuation data. At 12 months after enrolment or early discontinuation, women had their final interview, which included pregnancy testing. The primary outcome was discontinuation of DMPA-SC, as assessed in the intention-to-treat population. We used Kaplan-Meier methods to estimate the probabilities of continuation and a log-rank test to compare groups. Safety was assessed in the as-treated population, which consisted only of participants who successfully received at least one DMPA-SC injection after randomisation. This trial is registered with ClinicalTrials.gov, number NCT02293694. FINDINGS: This study lasted from Sept 17, 2015, to Feb 21, 2017. 731 women underwent randomisation, with 364 assigned to the self-administered group and 367 to the provider-administered group. One woman in the self-injection group withdrew at month 0. Treatment was discontinued by 99 women in the self-administered group and 199 women in the provider-administered group. The 12 month continuation rate was 73% in the self-injection group and 45% in the provider-administered group, giving an incidence rate ratio of 0·40 (95% CI 0·31-0·51; p<0·0001). Adverse events deemed to potentially be treatment-related were reported by ten women (20 events) in the self-administered group and 17 women (28 events) in the provider-administered group. Five serious adverse events were reported during the trial by four women; two events related to DMPA-SC (menorrhagia and anaemia requiring hospital admission) were reported by the same woman in the provider-administered group and resolved without sequelae. The other serious adverse events, including one death, were deemed to be unrelated to DMPA-SC. INTERPRETATION: Women who self-injected DMPA-SC had significantly higher rates of continuation than those receiving provider-injected DMPA-SC. Community-based provision of injectable contraception for self-injection in low-resource settings seems to be safe and feasible. Self-administration of DMPA-SC should be made widely available. FUNDING: United States Agency for International Development and Children's Investment Fund Foundation.


Assuntos
Anticoncepcionais Femininos/administração & dosagem , Adesão à Medicação/estatística & dados numéricos , Acetato de Medroxiprogesterona/administração & dosagem , Serviços de Saúde Rural/estatística & dados numéricos , Autoadministração/estatística & dados numéricos , Adolescente , Adulto , Feminino , Seguimentos , Humanos , Malaui , Adulto Jovem
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