Photo of Jeffrey T. Jensen, M.D., M.P.H.

Jeffrey T. Jensen M.D., M.P.H.

    • Professor of Obstetrics and Gynecology School of Medicine
    • Leon Speroff MD Professor of Obstetrics and Gynecology

A native of the northwest, Dr. Jensen completed medical school at Emory University, an internship at Santa Clara Valley Medical Center in San Jose, and an ob/gyn residency at OHSU. He has been board certified since 1990. Prior to accepting a faculty position at OHSU in 1992, he served in the United States Navy Medical Corps of the United States Navy. Dr. Jensen was appointed the first Leon Speroff professor of obstetrics and gynecology in 2003.

Dr. Jensen is the director of the Women's Health Research Unit, as well as vice- chair for research in the Department of obstetrics and gynecology, and a senior scientist at the Oregon National Primate Research Center. His special clinical interests include family planning. Dr. Jensen's research focus includes preclinical investigations of new contraceptive methods using nonhuman primate models, and clinical trials in contraception and abortion care. In his leisure time, Dr. Jensen enjoys birding, running, camping, biking and hiking with his family.


  • M.D., Emory University, Atlanta Georgia 1980
  • M.P.H., University of Washington, Seattle Washington 1997
  • Residency:

    • Obstetrics and gynecology, Oregon Health & Science University, 1988
  • Certifications:

    • American Board of Obstetrics and Gynecology

Memberships and associations

  • American Congress of Obstetricians and Gynecologists


  • "Combined oral contraceptive interference with the ability of ulipristal acetate to delay ovulation : A prospective cohort study." Contraception  In: , Vol. 98, No. 6, 01.12.2018, p. 463-466.
  • "Use of combined hormonal contraceptives for the treatment of endometriosis-related pain : a systematic review of the evidence." Fertility and Sterility  In: , Vol. 110, No. 1, 01.07.2018, p. 137-152.e1.
  • "Appraising cervical mucus : a new approach to evaluating contraceptives." European Journal of Contraception and Reproductive Health Care  In: , 19.02.2018, p. 1-6.
  • "Effect of menstrual cycle phase and hormonal treatments on evaluation of tubal patency in baboons." Journal of Medical Primatology  In: , Vol. 47, No. 1, 01.02.2018, p. 40-45.
  • "Continuous dosing of a novel contraceptive vaginal ring releasing Nestorone® and estradiol : Pharmacokinetics from a dose-finding study." Contraception  In: , 01.01.2018.
  • "Phase I/II pharmacokinetic and pharmacodynamic evaluation of two levonorgestrel-only contraceptive patches in a multicenter randomized trial." Contraception  In: , 01.01.2018.
  • "Mass media exposure and modern contraceptive use among married West African adolescents." European Journal of Contraception and Reproductive Health Care  In: , 19.12.2017, p. 1-11.
  • "Ovarian Lipid Metabolism Modulates Circulating Lipids in Premenopausal Women." The Journal of clinical endocrinology and metabolism  In: , Vol. 102, No. 9, 01.09.2017, p. 3138-3145.
  • "Tubal patency during the menstrual cycle and during treatment with hormonal contraceptives : A pilot study in women." Acta Radiologica  In: , Vol. 58, No. 8, 01.08.2017, p. 1020-1025.
  • "A novel tamponade agent for management of post partum hemorrhage : Adaptation of the Xstat mini-sponge applicator for obstetric use." BMC Pregnancy and Childbirth  In: , Vol. 17, No. 1, 187, 13.06.2017.
  • "Advances in contraception : new options for postpartum women." Expert Opinion on Pharmacotherapy  In: , Vol. 18, No. 7, 03.05.2017, p. 677-688.
  • "Revisiting contraceptive steroid hormone pharmacokinetics in obese women." Contraception  In: , 2017.
  • "Pressure dynamics in the non-gravid uterus : Intrauterine pressure cannot confirm tubal occlusion after non-surgical permanent contraception." Contraception  In: , 2017.
  • "Cervical mucus and contraception : What we know and what we don't." Contraception  In: , 2017.
  • "Blood loss at the time of dilation and evacuation at 16 to 22 weeks of gestation in women using low molecular weight heparin : A case series." Contraception  In: , 2017.
  • "Structural Basis of Wee Kinases Functionality and Inactivation by Diverse Small Molecule Inhibitors." Journal of Medicinal Chemistry  In: , Vol. 60, No. 18, 2017, p. 7863-7875.
  • "Mitochondrial replacement in human oocytes carrying pathogenic mitochondrial DNA mutations." Nature  In: , Vol. 540, No. 7632, 08.12.2016, p. 270-275.
  • "Polidocanol induced tubal occlusion in nonhuman primates : immunohistochemical detection of collagen I-V." Contraception  In: , Vol. 94, No. 5, 01.11.2016, p. 521-526.
  • "Targeting factors for change : contraceptive counselling and care of female adolescents." European Journal of Contraception and Reproductive Health Care  In: , Vol. 21, No. 6, 01.11.2016, p. 417-430.
  • "Transcervical administration of polidocanol foam prevents pregnancy in female baboons." Contraception  In: , Vol. 94, No. 5, 01.11.2016, p. 527-533.
  • "Rationale for eliminating the hormone-free interval in modern oral contraceptives." International Journal of Gynecology and Obstetrics  In: , Vol. 134, No. 1, 01.07.2016, p. 8-12.
  • "Levonorgestrel butanoate intramuscular injection does not reliably suppress ovulation for 90 days in obese and normal-BMI women : A pilot study." Contraception  In: , 20.06.2016.
  • "Tamoxifen for the treatment of breakthrough bleeding with the etonogestrel implant : A randomized controlled trial." Contraception  In: , 13.05.2016.
  • "Impact of estrogen therapy on lymphocyte homeostasis and the response to seasonal influenza vaccine in post-menopausal women." PLoS One  In: , Vol. 11, No. 2, e0149045, 01.02.2016.
  • "Blood loss at the time of surgical abortion up to 14 weeks in anticoagulated patients : A case series." Contraception  In: , 28.01.2016.
  • "Effect of oral contraceptives and doxycycline on endometrial MMP-2 and MMP-9 activity." Contraception  In: , Vol. 93, No. 1, 01.01.2016, p. 65-69.
  • "Permanent Contraception for Women." Seminars in Reproductive Medicine  In: , 2016.
  • "Does the Progestogen Used in Combined Hormonal Contraception Affect Venous Thrombosis Risk?" Obstetrics and Gynecology Clinics of North America  In: , Vol. 42, No. 4, 01.12.2015, p. 683-698.
  • "Refining paracervical block techniques for pain control in first trimester surgical abortion : A randomized controlled noninferiority trial." Contraception  In: , 18.11.2015.
  • "Present and future contraception : Does discovery of targets lead to new contraceptives?" Expert Opinion on Therapeutic Targets  In: , Vol. 19, No. 11, 02.11.2015, p. 1429-1432.

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