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CME / ABIM MOC / CE

What Impact Does Estrogen Treatment Have on COVID-19 Outcomes?

  • Authors: WebMD News Author: Ralph Ellis; CME Author: Laurie Barclay, MD
  • CME / ABIM MOC / CE Released: 7/1/2022
  • Valid for credit through: 7/1/2023
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  • Credits Available

    Physicians - maximum of 0.25 AMA PRA Category 1 Credit(s)™

    ABIM Diplomates - maximum of 0.25 ABIM MOC points

    Nurses - 0.25 ANCC Contact Hour(s) (0.25 contact hours are in the area of pharmacology)

    Pharmacists - 0.25 Knowledge-based ACPE (0.025 CEUs)

    Physician Assistant - 0.25 AAPA hour(s) of Category I credit

    IPCE - 0.25 Interprofessional Continuing Education (IPCE) credit

    You Are Eligible For

    • Letter of Completion
    • ABIM MOC points

Target Audience and Goal Statement

This activity is intended for obstetricians/gynecologists/women's health clinicians, family medicine/primary care practitioners, infectious disease clinicians, nurses, pharmacists, public health and prevention officials, physician assistants, and other members of the healthcare team for women on hormone replacement therapy (HRT) with estrogen who may have altered risk for COVID-19.

The goal of this activity is for learners to be better able to describe the association between hormone replacement therapy (HRT) or combined oral contraceptive pill (COCP) use and the likelihood of death in women with COVID-19 during the first 6 months of the pandemic, according to a retrospective cohort study using routinely collected computerized medical records from the Oxford-Royal College of General Practitioners Research and Surveillance Centre primary care database.

Upon completion of this activity, participants will:

  • Describe the association between HRT or COCP use and the likelihood of death in women with COVID-19 during the first 6 months of the pandemic, according to a UK retrospective cohort study
  • Identify clinical and public health implications of the association between HRT or COCP use and the likelihood of death in women with COVID-19 during the first 6 months of the pandemic, according to a UK retrospective cohort study
  • Outline implications for the healthcare team


Disclosures

Medscape, LLC requires every individual in a position to control educational content to disclose all financial relationships with ineligible companies that have occurred within the past 24 months. Ineligible companies are organizations whose primary business is producing, marketing, selling, re-selling, or distributing healthcare products used by or on patients.

All relevant financial relationships for anyone with the ability to control the content of this educational activity are listed below and have been mitigated according to Medscape policies. Others involved in the planning of this activity have no relevant financial relationships.


WebMD News Author

  • Ralph Ellis

    Freelance writer, Medscape

    Disclosures

    Ralph Ellis has no relevant financial relationships.

CME Author

  • Laurie Barclay, MD

    Freelance writer and reviewer
    Medscape, LLC

    Disclosures

    Laurie Barclay, MD, has the following relevant financial relationships:
    Formerly owned stocks in: AbbVie

Editor/Nurse Planner

  • Leigh A. Schmidt, MSN, RN, CMSRN, CNE, CHCP

    Associate Director, Accreditation and Compliance
    Medscape, LLC

    Disclosures

    Leigh A. Schmidt, MSN, RN, CMSRN, CNE, CHCP, has no relevant financial relationships.

Compliance Reviewer

  • Amanda Jett, PharmD, BCACP

    Associate Director, Accreditation and Compliance
    Medscape, LLC

    Disclosures

    Amanda Jett, PharmD, BCACP, has no relevant financial relationships.


Accreditation Statements



In support of improving patient care, Medscape, LLC is jointly accredited by the Accreditation Council for Continuing Medical Education (ACCME), the Accreditation Council for Pharmacy Education (ACPE), and the American Nurses Credentialing Center (ANCC), to provide continuing education for the healthcare team.

This activity was planned by and for the healthcare team, and learners will receive 0.25 Interprofessional Continuing Education (IPCE) credit for learning and change.

    For Physicians

  • Medscape, LLC designates this enduring material for a maximum of 0.25 AMA PRA Category 1 Credit(s)™ . Physicians should claim only the credit commensurate with the extent of their participation in the activity.

    Successful completion of this CME activity, which includes participation in the evaluation component, enables the participant to earn up to 0.25 MOC points in the American Board of Internal Medicine's (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for the activity. It is the CME activity provider's responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

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    For Nurses

  • Awarded 0.25 contact hour(s) of nursing continuing professional development for RNs and APNs; 0.25 contact hours are in the area of pharmacology.

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    For Pharmacists

  • Medscape designates this continuing education activity for 0.25 contact hour(s) (0.025 CEUs) (Universal Activity Number: JA0007105-0000-22-186-H01-P).

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  • For Physician Assistants

    Medscape, LLC has been authorized by the American Academy of PAs (AAPA) to award AAPA Category 1 CME credit for activities planned in accordance with AAPA CME Criteria. This activity is designated for 0.25 AAPA Category 1 CME credits. Approval is valid until 7/1/2023. PAs should only claim credit commensurate with the extent of their participation.

For questions regarding the content of this activity, contact the accredited provider for this CME/CE activity noted above. For technical assistance, contact [email protected]


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This activity is designed to be completed within the time designated on the title page; physicians should claim only those credits that reflect the time actually spent in the activity. To successfully earn credit, participants must complete the activity online during the valid credit period that is noted on the title page. To receive AMA PRA Category 1 Credit™, you must receive a minimum score of 75% on the post-test.

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CME / ABIM MOC / CE

What Impact Does Estrogen Treatment Have on COVID-19 Outcomes?

Authors: WebMD News Author: Ralph Ellis; CME Author: Laurie Barclay, MDFaculty and Disclosures

CME / ABIM MOC / CE Released: 7/1/2022

Valid for credit through: 7/1/2023

processing....

Note: The information on the coronavirus outbreak is continually evolving. The content within this activity serves as a historical reference to the information that was available at the time of this publication. We continue to add to the collection of activities on this subject as new information becomes available. It is the policy of Medscape Education to avoid the mention of brand names or specific manufacturers in accredited educational activities. However, manufacturer names related to COVID-19 vaccines may be provided in this activity to promote clarity. The use of manufacturer names should not be viewed as an endorsement by Medscape of any specific product or manufacturer.

Clinical Context

Although male and female individuals are equally susceptible to SARS-CoV-2 infection, male persons experience greater severity of infection, with higher rates of hospitalization and mortality. Mechanisms underlying these sex differences are unclear but may include sex differences in smoking, comorbidities, and immunology.

The role of estrogen in female immune responses has attracted much attention. Younger women or those with higher estrogen levels are less likely to experience severe COVID-19 complications, with faster and greater cellular and humoral immune responses to viral infections. Estrogen can modulate immune responses by reducing T-cell exhaustion and suppressing interleukin (IL)-1β and IL-6 production, which potentially limits the cytokine storm and subsequent respiratory failure triggered by SARS-CoV-2.

Study Synopsis and Perspective

Women who went on hormone replacement therapy (HRT) with estrogen within 6 months of catching COVID-19 had a reduced risk of dying, a new study says.

The study, coupled with data showing men have higher hospitalization and mortality rates from COVID-19 than women, provides more evidence that estrogen may offer broad protection against the coronavirus, according to a recent study published in Family Medicine.[1]

"This study supports the theory that estrogen may offer some protection against severe COVID-19," Christopher Wilcox, one of the paper's authors, said in a news release from Oxford University Press.[2] "We hope that this study can provide reassurance to patients and clinicians that there is no indication to stop [HRT] because of the pandemic."

Researchers studied medical records of 1,863,478 women from 465 general practices in England that were found in the Oxford-Royal College of General Practitioners Research and Surveillance Centre primary care database.[1]

The researchers found 5451 COVID cases, with HRT associated with a 78% reduction in "all-cause mortality," the study said.

The research covered the first 6 months of the pandemic, before vaccinations were available. The investigators said more research is needed into estrogen levels and COVID-19 cases, including whether contraception containing estrogen affects COVID-19 risk.

The study noted that women fared better than men during other pandemics, including the SARS-CoV and MERS-CoV outbreaks.

"The reason for these sex differences is unclear," the study said. "A range of hypotheses have been proposed from variations in patterned sex behaviors, such as smoking, comorbidities, and sex-based immunological variations. In particular, the role of estrogen in female immune responses has received much attention."

A study based on data from Sweden that was published earlier this year in BJM Open[3] also found that HRT is associated with a reduced risk for death from COVID-19 among women.

Study Highlights

  • This retrospective cohort study used routinely collected computerized medical records from the RSC primary care database for 1,863,478 women aged > 18 years from 465 general practices in England.
  • The association between HRT or COCP use and all-cause mortality among 5451 women diagnosed with confirmed or suspected COVID-19 was quantified in unadjusted and adjusted mixed-effects logistic regression models.
  • Mean age was 59 ± 21.7 years; 64.8% were White; 235 had HRT prescriptions, and 171 had a COCP prescription.
  • During follow-up (mean, 164.9 ± 19.6 days), 12.2% of women died; these were more likely to be older with multiple comorbidities.
  • In unadjusted models, HRT use within 6 months of a recorded diagnosis of COVID-19 was associated with an 85% lower likelihood of all-cause mortality in COVID-19 (odds ratio [OR] 0.15 [95% CI: 0.06, 0.37]).
  • In adjusted models, HRT prescription was associated with a 78% reduction in all-cause mortality in COVID-19 (adjusted odds ratio [aOR] 0.22 [95% CI: 0.05, 0.94]).
  • All-cause mortality risk was higher in COVID-19 among women who were older, underweight, from larger households, with hypertension, or taking immunosuppressants.
  • Among women with asthma, being on HRT was associated with a 42% significantly lower risk for mortality (OR 0.58 [95% CI: 0.42, 0.81]).
  • An additional sensitivity analysis using multiple imputation for missing data showed a nonsignificant reduction in all-cause mortality associated with HRT use (OR 0.47 [95% CI: 0.18, 1.23]).
  • Absence of reported events for all-cause mortality in women prescribed COCPs prevented further assessment of the impact of COCP.
  • The investigators concluded that HRT prescription within 6 months of a recorded diagnosis of COVID-19 was associated with a reduction in all-cause mortality.
  • These findings should reassure women that there is no indication to discontinue HRT use because of the pandemic.
  • Further research in larger cohorts is needed to evaluate the association of COCP with COVID-19 mortality; to further examine the hypothesis that estrogen may contribute a protective effect against COVID-19 severity; and to explore the effect of variations in HRT doses, preparations, and duration on COVID-19 complications.
  • Previous studies report lower rates of severe COVID-19 complications in women than in men, and several published studies support the hypothesis that higher estrogen levels may help protect against COVID-19.
  • The pathophysiology of this protective effect may be through increased cellular and humoral immune responses in female persons with higher estrogen levels.
  • Recent evidence suggests that women have higher levels and faster generation of serum SARS-CoV-2 immunoglobulin G antibodies than men.
  • Higher estrogen levels may also enhance the direct antiviral activity of T cells and modulate cytokine storm, which is an uncontrolled immune response seen in patients with respiratory failure from COVID-19.
  • As immune responses and estrogen levels decrease with age, the greater likelihood of worse outcomes in women with increasing age is not surprising.
  • Older women taking HRT with exogenous estrogen have reduced risk for all-cause mortality, but it is still higher than that of younger women, presumably because of the direct effect of aging on the immune system and the increased number of morbidities acquired with age.
  • The finding that increased age, comorbidities, extreme body mass index, and immunosuppressants were all significantly associated with increased likelihood of death among women with COVID-19 is consistent with several recent reports.
  • Although previous evidence is inconsistent regarding the effect of asthma in the severity of COVID-19 outcome, this study's finding that being on HRT was associated with significantly lower mortality risk suggests that estrogen may be protective.
  • Still, patients with asthma are likely to be treated with steroids or other asthma medication that could contribute to some of the observed associations.
  • Study limitations include possible residual unmeasured confounding and risk for misclassification because of the retrospective cohort design; the possibility that not all those with clinically probable cases had SARS-CoV-2 infection; and failure to capture asymptomatic cases or patients with milder symptoms.
  • HRT exposure might have been overestimated because of reliance on estrogen prescriptions rather than dispensed medications and because some women may have stopped taking HRT before contracting SARS-CoV-2 infection, as estrogen was highlighted as having a role in COVID-19 early in the pandemic.

Clinical Implications

  • HRT prescription within 6 months of a recorded diagnosis of COVID-19 was associated with a reduction in all-cause mortality.
  • Further research in larger cohorts is needed to evaluate the association of COCP with COVID-19 mortality; to further examine the hypothesis that estrogen may contribute a protective effect against COVID-19 severity; and to explore the effect of variations in HRT doses, preparations, and duration on COVID-19 complications.
  • Implications for the Healthcare Team: The interprofessional team should use their roles to provide evidence-based education to women on the safety of HRT use during the pandemic.

 

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