Submissions from 2021
Polymorphism characterization of segesterone acetate: A comprehensive study using XRPD, FT-IR and Raman spectroscopy, Fermin F.H. Aragon, Clement M. Haeck, Paulo C. Morais, and Bruce Variano
Pharmacodynamics and pharmacokinetics of a copper intrauterine contraceptive system releasing ulipristal acetate: A randomized proof-of-concept study, Vivian Brache, Carolina Sales Vieira, Marlena Gehret Plagianos, Maud Lansiaux, Ruth Merkatz, Heather Sussman, Leila Cochon, Ana-Sofia Tejada, Narender Kumar, Dan Loeven, Diana Blithe, Abi Santhosh Aprem, Alistair Williams, Athilakshmi Kannan, Indrani C. Bagchi, and Régine Sitruk-Ware
Harnessing the power of partnership to advance reproductive health and rights, Julia Bunting and Régine Sitruk-Ware
The vaginal microbiota, bacterial biofilms and polymeric drug-releasing vaginal rings, Louise Carson, Ruth Merkatz, Elena Martinelli, Peter Boyd, Bruce Variano, Teresa Sallent, and R. Karl Malcolm
The promise of the dual prevention pill: A framework for development and introduction, Barbara Friedland, Sanyukta Mathur, and Lisa Haddad
Addressing contraceptive needs exacerbated by COVID-19: A call for increasing choice and access to self-managed methods, Lisa Haddad, Saumya RamaRao, Avishek Hazra, Harriet Birungi, and James Sailer
Contraceptive technologies: Looking ahead to new approaches to increase options for family planning, Lisa Haddad, John Townsend, and Régine Sitruk-Ware
Segesterone acetate serum levels with a regression model of continuous use of the segesterone acetate/ethinyl estradiol contraceptive vaginal system, James Liu, Marlena Gehret Plagianos, David F. Archer, James A. Simon, Andrew M. Kaunitz, Shelli Graham, Brian Bernick, and Sebastian Mirkin
Submissions from 2020
Estimating the market size for a dual prevention pill: Adding contraception to pre-exposure prophylaxis (PrEP) to increase uptake, Lorna Begg, Rebecca Brodsky, Barbara Friedland, Sanyukta Mathur, James Sailer, and George W. Creasy
The ins and outs of drug-releasing vaginal rings: A literature review of expulsions and removals, Peter Boyd, Ruth Merkatz, Bruce Variano, and R. Karl Malcolm
Dose-finding study of a 90-day contraceptive vaginal ring releasing estradiol and segesterone acetate, Melissa J. Chen, Mitchell Creinin, David K. Turok, David F. Archer, Kurt T. Barnhart, Carolyn Westhoff, Michael A. Thomas, Jeffrey T. Jensen, Bruce Variano, Régine Sitruk-Ware, Anita Shanker, Jill Long, and Diana Blithe
Editorial: The 6th International IUD Symposium, David Hubacher, James Sailer, Carolyn Westhoff, and IUD Symposium Organizing Committee
The benefits and limitations of donating new contraceptive technology: The case of the International Contraceptive Access (ICA) Foundation and the LNG IUS Program in Brazil, Laura Miranda, John Townsend, Anibal Faundes, and Luis Bahamondes
ICA Foundation supports LNG IUS access in low- and middle-income countries, Population Council
The Population Council's Center for Biomedical Research: A nonprofit product-development entity, Population Council
Infographic—Getting to market: Roadmap for user access, Saumya RamaRao, Wilson Liambila, Fatou Mbow, and Avishek Hazra
Progesterone vaginal ring as a new contraceptive option for lactating mothers: Evidence from a multicenter non-randomized comparative clinical trial in India, Malabika Roy, Avishek Hazra, Ruth Merkatz, Marlena Gehret Plagianos, Mohcine Alami, L.N. Gaur, Kumudha Aruldas, Heather Sussman, Bruce Variano, and Régine Sitruk-Ware
Commentary on research to improve contraceptive and multipurpose prevention technologies, J. Joseph Speidel, John Townsend, Elspeth Williams, Jamie Quam, and Kirsten M.J. Thompson
Contraceptive technologies for global health: Ethically getting to safe, effective and acceptable options for women and men, John Townsend, Régine Sitruk-Ware, Saumya RamaRao, and James Sailer
Choosing and using the progesterone vaginal ring: Women’s lived experiences in three African cities, Chi-Chi Undie, Saumya RamaRao, and Fatou Mbow
Submissions from 2019
Combined Nestorone–testosterone gel suppresses serum gonadotropins to concentrations associated with effective hormonal contraception in men, Bradley D. Anawalt, Mara Y. Roth, Jonas Ceponis, Vijaya Surampadi, John K. Amory, Ronald S. Swerdloff, Peter Y. Liu, Clint Dart, William J. Bremner, Régine Sitruk-Ware, Narender Kumar, Diana Blithe, Stephanie T. Page, and Christina Wang
Efficacy of the 1-year (13-cycle) segesterone acetate and ethinylestradiol contraceptive vaginal system: Results of two multicentre, open-label, single-arm, phase 3 trials, David F. Archer, Ruth Merkatz, Luis Bahamondes, Carolyn Westhoff, Philip Darney, Dan Apter, Jeffrey T. Jensen, Vivian Brache, Anita L. Nelson, Erika Banks, György Bártfai, David J. Portman, Marlena Gehret Plagianos, Clint Dart, Narender Kumar, George W. Creasy, Régine Sitruk-Ware, and Diana Blithe
In vitro release testing methods for drug-releasing vaginal rings, Peter Boyd, Bruce Variano, Patrick Spence, Clare F. McCoy, Diarmaid J. Murphy, Yahya H. Dallal Bashi, and R. Karl Malcolm
Segesterone acetate/ethinyl estradiol 12-month contraceptive vaginal system safety evaluation, Kristina Gemzell-Danielsson, Régine Sitruk-Ware, Mitchell Creinin, Michael Thomas, Kurt T. Barnhart, George W. Creasy, Heather Sussman, Mohcine Alami, Anne E. Burke, Edith Weisberg, Ian S. Fraser, Marie-José Miranda, Melissa Gilliam, James Liu, Bruce R. Carr, Marlena Gehret Plagianos, Kevin Roberts, and Diana Blithe
Efficacy and safety of a 1-year segesterone acetate and ethinyl estradiol contraceptive vaginal system, Ruth Merkatz, Maureen Magnani, Heather Sussman, George W. Creasy, and Régine Sitruk-Ware
Post-use ring weight and residual drug content as potential objective measures of user adherence to a contraceptive progesterone vaginal ring, Diarmaid J. Murphy, Clare F. McCoy, Marlena Gehret Plagianos, Saumya RamaRao, Ruth Merkatz, Heather Clark, Peter Boyd, Bruce Variano, and R. Karl Malcolm
Contraception and public health ethics, Saumya RamaRao and John Townsend
Bone turnover markers in women participating in a dose-finding trial of a contraceptive vaginal ring releasing Nestorone and estradiol, Molly Tiedeken, Carolyn Westhoff, Adi Cohen, Serge Cremers, Régine Sitruk-Ware, Diana Blithe, and The NICHD Contraceptive Trials Network Vaginal Ring Group
Bleeding profile associated with 1-year use of the segesterone acetate/ethinyl estradiol contraceptive vaginal system: Pooled analysis from phase 3 trials, Carolina Sales Vieira, Ian S. Fraser, Marlena Gehret Plagianos, Anne E. Burke, Carolyn Westhoff, Jeffrey T. Jensen, Vivian Brache, Luis Bahamondes, Ruth Merkatz, Régine Sitruk-Ware, and Diana Blithe
Preventing secondary exposure to women from men applying a novel Nestorone/testosterone contraceptive gel, F. Yuen, S. Wu, A. Thirumalai, Ronald S. Swerdloff, Stephanie T. Page, Peter Y. Liu, Clint Dart, H. Wu, Diana Blithe, Régine Sitruk-Ware, J. Long, F. Bai, L. Hull, William J. Bremner, Bradley D. Anawalt, and Christina Wang
Submissions from 2018
Introducing the progesterone vaginal ring (PVR) as a new option for postpartum family planning in sub-Saharan Africa: Insights from engagements with stakeholders, Salisu Mohammed Ishaku, Nafissatou Diop, Babacar Mane, Wilson Liambila, Saumya RamaRao, Heather Clark, Harriet Birungi, Godwin Unumeri, and Francis Obare
Continuous dosing of a novel contraceptive vaginal ring releasing Nestorone® and estradiol: Pharmacokinetics from a dose-finding study, Jeffrey T. Jensen, Alison E. Edelman, Beatrice A. Chen, D.F. Archer, Kurt T. Barnhart, M.A. Thomas, Anne E. Burke, Carolyn Westhoff, Livia Wan, Régine Sitruk-Ware, Narender Kumar, Bruce Variano, and Diana Blithe
Solid state ^13C NMR spectroscopy provides direct evidence for reaction between ethinyl estradiol and a silicone elastomer vaginal ring drug delivery system, Clare F. McCoy, David C. Apperley, Bruce Variano, Heather Sussman, Dan Loeven, Peter Boyd, and R. Karl Malcolm
Introduction of subcutaneous depot medroxyprogesterone acetate (DMPA-SC) injectable contraception at facility and community levels: Pilot results from 4 districts of Uganda, George Odwe, Kate Gray, Annet Kyarimpa, Francis Obare, and Grace Nagendi
Do women find the progesterone vaginal ring acceptable? Findings from Kenya, Nigeria, and Senegal, Saumya RamaRao, Francis Obare, Salisu Mohammed Ishaku, Babacar Mane, Heather Clark, Wilson Liambila, Godwin Unumeri, Harriet Birungi, Nafissatou Diop, Deepa Rajamani, and John Townsend
Effects of concurrent vaginal miconazole treatment on the absorption and exposure of Nestorone® (segesterone acetate) and ethinyl estradiol delivered from a contraceptive vaginal ring: A randomized, crossover drug–drug interaction study, Katharine B. Simmons, Narender Kumar, Marlena Gehret Plagianos, Kevin Roberts, Elena Hoskin, Leo Han, Mohcine Alami, George W. Creasy, Bruce Variano, and Ruth Merkatz
Non-clinical studies of progesterone, Régine Sitruk-Ware
Factors associated with non-adherence to instructions for using the Nestorone®/ethinyl estradiol contraceptive vaginal ring, Bianca M. Stifani, Marlena Gehret Plagianos, Carolina Sales Vieira, and Ruth Merkatz
Submissions from 2017
An intravaginal ring that releases three antiviral agents and a contraceptive blocks SHIV-RT infection, reduces HSV-2 shedding, and suppresses hormonal cycling in rhesus macaques, Nina Derby, Meropi Aravantinou, Jessica Kenney, Shweta Ugaonkar, Asa Wesenberg, Jolanta Wilk, Larisa Kizima, Aixa Rodriguez, Shimin Zhang, Olga Mizenina, Keith Levendosky, Michael Cooney, Samantha Seidor, Agegnehu Gettie, Brooke Grasperge, James Blanchard, Michael Piatak Jr., Jeffrey D. Lifson, José Fernández-Romero, Thomas Zydowsky, and Melissa Robbiani
Nestorone® (NES) a novel progestin for non-oral contraception: Structure-activity relationships and brain metabolism studies, Narender Kumar, Jerome Fagart, Philippe Liere, Scott J. Mitchell, Alanah R. Knibb, Isabelle Petit-Topin, Marion Rame, Martine El-Etr, Michael Schumacher, Jeremy J. Lambert, Marie-Edith Rafestin-Oblin, and Régine Sitruk-Ware
Use of male methods of contraception worldwide, John Ross and Karen Hardee
Factors predicting improper use of a woman-controlled long-acting reversible contraceptive: Results from the acceptability study of a novel contraceptive vaginal ring, Bianca M. Stifani, Marlena Gehret Plagianos, Carolina Sales Vieira, and Ruth Merkatz
Impact of various progestins with or without transdermal testosterone on gonadotropin levels for non-invasive hormonal male contraception: A randomized clinical trial, Michael Zitzmann, Julia Rohayem, J. Raidt, Sabine Kliesch, Narender Kumar, and Régine Sitruk-Ware
Submissions from 2016
Impact on hepatic estrogen-sensitive proteins by a 1-year contraceptive vaginal ring delivering Nestorone® and ethinyl estradiol, David F. Archer, M.A. Thomas, Jacqueline Conard, Ruth Merkatz, George W. Creasy, Kevin Roberts, Marlena Gehret Plagianos, Diana Blithe, and Régine Sitruk-Ware
Delivering contraceptive vaginal rings to breastfeeding women, Population Council
Introducing contraceptive methods in low-resource settings: New opportunities in Kenya, Population Council
Introducing contraceptive methods in low-resource settings: New opportunities in Nigeria, Population Council
Introducing contraceptive methods in low-resource settings: New opportunities in Senegal, Population Council
Introducing the progesterone contraceptive vaginal ring in sub-Saharan Africa, Population Council
Progesterone vaginal ring: Beneficial role in supporting breastfeeding, Population Council
« Manifesto » de Paris : le temps est venu de disposer de nouvelles méthodes contraceptives masculines, David Serfaty, Régine Sitruk-Ware, Christina Wang, and Eberhard Nieschlag
Hormonal contraception and thrombosis, Régine Sitruk-Ware
Risk of pregnancy in breastfeeding mothers: Role of the progesterone vaginal ring on birth spacing, Régine Sitruk-Ware, Saumya RamaRao, Ruth Merkatz, and John Townsend
Editorial: It is time for new male contraceptives!, Christina Wang, Régine Sitruk-Ware, and David Serfaty
Submissions from 2015
A dose-finding, cross-over study to evaluate the effect of a Nestorone®/Estradiol transdermal gel delivery on ovulation suppression in normal ovulating women, Vivian Brache; Ruth Merkatz; Narender Kumar; Cristian Jesam Gaete; Heather Sussman; Elena Hoskin; Kevin Roberts; Mohcine Alami; DeShawn Taylor; Aidelis Jorge; Horacio B. Croxatto; Ellen Lorange; Daniel R. Mishell, Jr.; and Régine Sitruk-Ware
An innovative financing model for the progesterone contraceptive vaginal ring through voucher programs, Ishita Chattopadhyay, John Townsend, and Saumya RamaRao
Offering progesterone contraceptive vaginal rings for postpartum women through integrated family planning and immunization services, Ishita Chattopadhyay, John Townsend, and Saumya RamaRao
Utilizing social marketing and social franchising models to expand access to the progesterone contraceptive vaginal ring, Ishita Chattopadhyay, John Townsend, and Saumya RamaRao
Effects of a one year reusable contraceptive vaginal ring on vaginal microflora and the risk of vaginal infection: An open-label prospective evaluation, Yong-mei Huang, Ruth Merkatz, Sharon L. Hillier, Kevin Roberts, Diana Blithe, Régine Sitruk-Ware, and Mitchell Creinin
Progesterone vaginal ring: Results of an acceptability study in Nigeria, Salisu Mohammed Ishaku, Afolabi Kayode, Godwin Unumeri, Ayodeji Oginni, Adekunle Adeyemi, Deepa Rajamani, Heather Clark, Naomi Rijo, and Saumya RamaRao
Willingness to pay for contraceptive vaginal rings in Nigeria, Salisu Mohammed Ishaku, Ayodeji Oginni, Godwin Unumeri, and Deepa Rajamani
Willingness to pay for contraceptive vaginal rings in Kenya, Wilson Liambila, Deepa Rajamani, Francis Obare, Saumya RamaRao, Harriet Birungi, and Heather Clark
Delivering contraceptive vaginal rings: Review of postpartum service packages in Kenya, Wilson Liambila, Saumya RamaRao, and Heather Clark
Delivering contraceptive vaginal rings—Task shifting and task sharing in the delivery of family planning services: Experiences from Kenya, Wilson Liambila, Saumya RamaRao, and Heather Clark
L’anneau vaginal à progestérone: Résultats de l’étude d’acceptabilité au Sénégal, Babacar Mane, Papa Chimere Diaw, Nafissatou Diop, Fatou Mbow, Heather Clark, Saumya RamaRao, and Deepa Rajamani
Delivering contraceptive vaginal rings—Task sharing in the delivery of family planning programs: Experiences from Senegal, Babacar Mane, Nafissatou Diop, and Saumya RamaRao
Willingness to pay for contraceptive vaginal rings in Senegal, Babacar Mane, Fatou Mbow, Deepa Rajamani, Nafissatou Diop, and Saumya RamaRao
L’offre des anneux vaginaux contraceptifs— La planification familiale postpartum: experience du Sénégal, Fatou Mbow, Babacar Mane, and Saumya RamaRao
Progesterone vaginal ring: Results of an acceptability study in Kenya, Francis Obare, Wilson Liambila, Chi-Chi Undie, Harriet Birungi, Shiphrah Kuria, Heather Clark, Deepa Rajamani, and Saumya RamaRao
Anneau vaginal à la progesterone: Appel a l'action pour combler les ecarts importants dans la planification familiale postnatal, Population Council
Anneau vaginal à progestérone: aussi sûr pour maman que pour bébé, Population Council
Anneau vaginal à progestérone: évite les grossesses, Population Council
Delivering contraceptive vaginal rings, Population Council
Distribution d'anneaux vaginaux contraceptifs, Population Council
Expanding access to long-acting reversible contraceptives, Population Council
Progesterone vaginal ring: A call-to-action to fill critical gaps in post-partum family planning, Population Council
Progesterone vaginal ring: Beneficial role in birth spacing, Population Council
Progesterone vaginal ring: Prevents pregnancy, Population Council
Progesterone vaginal ring: Safe for mothers and babies, Population Council
Progesterone vaginal ring: Results of a three-country acceptability study, Saumya RamaRao, Heather Clark, Deepa Rajamani, Salisu Mohammed Ishaku, Babacar Mane, Francis Obare, Harriet Birungi, Nafissatou Diop, Wilson Liambila, Fatou Mbow, Chi-Chi Undie, Godwin Unumeri, and John Townsend
Enhancing contraceptive choice for postpartum women in sub-Saharan Africa with the progesterone vaginal ring: A review of the evidence, Saumya RamaRao, Salisu Mohammed Ishaku, Wilson Liambila, and Babacar Mane
Applying emerging science to contraception research: Implications for the clinic, Régine Sitruk-Ware and Anita Nath
A novel intravaginal ring to prevent HIV-1, HSV-2, HPV, and unintended pregnancy, Shweta Ugaonkar, Asa Wesenberg, Jolanta Wilk, Samantha Seidor, Olga Mizenina, Larisa Kizima, Aixa Rodriguez, Shimin Zhang, Keith Levendosky, Jessica Kenney, Meropi Aravantinou, Nina Derby, Brooke Grasperge, Agegnehu Gettie, James F. Blanchard, Narender Kumar, Kevin Roberts, Melissa Robbiani, José Fernández-Romero, and Thomas Zydowsky
Delivering contraceptive vaginal rings: Review of postpartum and postnatal care programs in Nigeria, Godwin Unumeri and Salisu Mohammed Ishaku
Delivering contraceptive vaginal rings—Task sharing policies and practices in the delivery of family planning services: Experiences from Nigeria, Godwin Unumeri and Salisu Mohammed Ishaku
Submissions from 2014
A randomized study on pharmacodynamic effects of vaginal rings delivering the progesterone receptor modulator ulipristal acetate: Research for a novel estrogen-free, method of contraception, Yong-mei Huang, Jeffrey T. Jensen, Vivian Brache, Leila Cochen, Alistair Williams, Marie-José Miranda, Horacio B. Croxatto, Narender Kumar, Heather Sussman, Elena Hoskin, Marlena Gehret Plagianos, Kevin Roberts, Ruth Merkatz, Diana Blithe, and Régine Sitruk-Ware
Medical barriers to emergency contraception: A cross-sectional survey of doctors in North India, M.E. Khan, Anvita Dixit, Isha Bhatnagar, and Martha Brady
Acceptability of the Nestorone®/ethinyl estradiol contraceptive vaginal ring: Development of a model; implications for introduction, Ruth Merkatz, Marlena Gehret Plagianos, Michael Cooney, Elena Hoskin, Paul C. Hewett, and Barbara Mensch
Assessing the potential market for a progesterone contraceptive vaginal ring (PCVR) as a new contraceptive option in sub-Saharan Africa using needs-based market segmentation, Francis Obare, Deepa Rajamani, and Saumya RamaRao
Acceptability of a transdermal gel-based male hormonal contraceptive in a randomized controlled trial, Mara Y. Roth, Grace Shih, Niloufar Ilani, Christina Wang, Stephanie T. Page, William J. Bremner, Ronald S. Swerdloff, Régine Sitruk-Ware, Diana Blithe, and John K. Amory
Submissions from 2013
Statement on combined hormonal contraceptives containing third- or fourth-generation progestogens or cyproterone acetate, and the associated risk of thromboembolism, Johannes Bitzer, Jean-Jacques Amy, Rob Beerthuizen, Martin Birkhauser, Teresa Bombas, Mitchell Creinin, Philip Darney, Lisa Ferreira Vicente, Kristina Gemzell-Danielsson, Bruno Imthurn, Jeffrey T. Jensen, Andrew M. Kaunitz, Ali Kubba, Medard M. Lech, Diana Mansour, Gabriele Merki, Thomas Rabe, Katrina Sedlecki, David Serfaty, Jacques Seydoux, Lee P. Shulman, Régine Sitruk-Ware, Sven O. Skouby, Anne Szarewski, James Trussell, and Carolyn Westhoff
Why do we need male contraceptives?, C. Yan Cheng and Dolores D. Mruk
A greenprint for sustainable contraceptive research and development, Kirsten Moore, John Townsend, Jeff Spieler, Patricia S. Coffey, Diana Blithe, Elizabeth Arndorfer, and Elizabeth Dawes
7a-methyl-19-nortestosterone (MENT®): The Population Council's contribution to research on male contraception and treatment of hypogonadism, Eberhard Nieschlag, Narender Kumar, and Régine Sitruk-Ware
Progesterone vaginal ring: Introducing a contraceptive to meet the needs of breastfeeding women, Saumya RamaRao, Heather Clark, Ruth Merkatz, Heather Sussman, and Régine Sitruk-Ware
New vision for contraceptive research and development, Régine Sitruk-Ware and Peter J. Donaldson
Characteristics and metabolic effects of estrogen and progestins contained in oral contraceptive pills, Régine Sitruk-Ware and Anita Nath
Contraception technology: Past, present and future, Régine Sitruk-Ware; Anita Nath; and Daniel R. Mishell, Jr.
Submissions from 2012
Country mapping: Nigeria, Salisu Mohammed Ishaku and Saumya RamaRao
Country mapping: Senegal, Babacar Mane, Nafissatou Diop, Nancy Termini LaChance, Saumya RamaRao, and Heather Clark