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  • Fertility medications...

Fertility medications do not raise breast cancer risk in women: Study

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2021-06-24T09:15:15+05:30  |  Updated On 24 Jun 2021 10:14 AM IST
Fertility medications do not raise breast cancer risk in women: Study
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Researchers found no significant increase in risk to women exposed to treatment versus untreated women, and untreated women who were infertile.

UK: The use of fertility drugs clomiphene citrate and gonadotropins in infertile women is not associated with an increased breast cancer risk, a recent study has shown. The research, published in the journal Fertility and Sterility, is the largest study to date assessing whether commonly used fertility drugs increase cancer risk in women.

Researchers from King's College London, in partnership with King's Fertility, analyzed studies involving 1.8 million women undergoing fertility treatments. These women were followed up in studies for an average period of 27 years and had no increase in the risk of developing breast cancer.

Fertility treatments can range from using medications to boost the release of an egg in a women's natural cycle to more complex treatment such as IVF which involves stimulating a patient's ovarian cycle, extracting eggs from their ovaries, fertilising them with sperm in a laboratory, then transferring the embryo into the womb to develop.

Fertility drugs to stimulate ovaries to release eggs have been used to treat infertility since the early 1960s. Drugs that are used to stimulate the ovaries increase oestrogen hormone production and can act on breast cells. There has been concern that this could turn the cells cancerous, which has led to an uncertainty about the potential risk of infertility drugs causing breast cancer.

The review looked at studies from 1990 to January 2020. Women of all reproductive ages were included in this study and followed up for an average of 27 years following their fertility treatment. 'Researchers found no significant increase in risk to women exposed to treatment versus untreated women, and untreated women who were infertile.

Study author Dr Yusuf Beebeejaun from King's College London and King's Fertility said: "Fertility treatment can be an emotional experience. Patients often ask us if taking ovarian stimulating drugs will put them at increased risk of developing cancers, including breast cancer. To answer that important clinical question, we undertook this review that reports data from nearly 2 million people.''

Dr Sesh Sunkara, senior-author of the paper, from King's College London and King's Fertility said ''Our study showed that the use of drugs to stimulate ovaries in fertility treatment did not put women at increased risk of breast cancer. This study provides the evidence needed to reassure women and couples seeking fertility treatments.''

Katy Lindemann, a patient advocate with lived experience of fertility treatment said: "So much of the fear, stress and anxiety associated with fertility treatment is rooted in navigating uncertainty. This study not only gives patients peace of mind at an emotional level, but also enables us to make more informed decisions about treatment risks and benefits at a rational level."

Dr Kotryna Temcinaite, Senior Research Communications Manager at Breast Cancer Now, said: "Each year around 55,000 UK women get the terrible news that they have breast cancer. We urgently need to learn more about what factors contribute to someone's risk of developing the disease and stop women dying from breast cancer.

"Previously it was unclear whether fertility drugs affect breast cancer risk. While this analysis of existing published studies does provide welcome reassurance that fertility treatment is unlikely to increase breast cancer risk, further long-term and detailed studies are now needed to confirm these findings."

Reference:

The study titled, "Risk of breast cancer in women treated with ovarian stimulation drugs for infertility: a systematic review and meta-analysis," is published in the journal Fertility and Sterility.

DOI: https://www.fertstert.org/article/S0015-0282(21)00077-7/fulltext


breast cancerfertility treatmentFertility and Sterilitygonadotropins
Source : Fertility & Sterility
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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