SERM Market Shows Promising Growth Trajectory During the Study Period (2020-2034) Owing to the Rising Demand in Oncology and Women's Health | DelveInsight

The SERMs market is projected to experience substantial growth in the near future, driven by a rising incidence of cancer diagnoses, growing awareness about SERMs, and a surge in the number of SERMs undergoing clinical trials or awaiting regulatory approval by various companies.

LAS VEGAS, July 17, 2025 /PRNewswire/ -- DelveInsight's SERM Market Size, Target Population, Competitive Landscape & Market Forecast report includes a comprehensive understanding of current treatment practices, addressable patient population, which includes top indications such as breast cancer, postmenopausal osteoporosis, dyspareunia and vaginal dryness, and others. The selected indications are based on approved therapies and ongoing pipeline activity. The report also provides insights into the emerging SERM, market share of individual therapies, and current and forecasted market size from 2020 to 2034, segmented into 7MM.

Key Takeaways from the SERM Market Report

• As per DelveInsight's analysis, the total market size of SERM in the 7MM is expected to surge significantly by 2034.
• The report provides the total potential number of patients in the indications, such as breast cancer, postmenopausal osteoporosis, dyspareunia and vaginal dryness, and others.
• Leading SERM companies, such as Atossa Therapeutics, Sermonix Pharmaceuticals, and others, are developing novel SERMs that can be available in the SERM market in the coming years. 
• Some of the key SERMs in the pipeline include (Z)-Endoxifen, Lasofoxifene, and others.
• In April 2025, Atossa Therapeutics announced that the US Patent and Trademark Office (USPTO) had granted a new patent (US Patent No. 12,275,684) directed to enteric oral formulations comprising (Z)-Endoxifen as well as methods of treating subjects with those oral formulations.
• In April 2025, Sermonix Pharmaceuticals and Quantum Leap Healthcare Collaborative broadly announced that in the Phase II clinical trial evaluating lasofoxifene as a neoadjuvant endocrine therapy in molecularly selected HR+/HER2-, locally advanced breast cancer, the investigational drug was well tolerated and demonstrated promising early activity in suppressing the Ki67 protein in both premenopausal and postmenopausal patients.
• In January 2025, Sermonix Pharmaceuticals announced the publication of an article entitled 'Effects of Lasofoxifene Versus Fulvestrant on Vaginal and Vulvar Symptoms in Patients with ESR1-Mutated, ER+/HER2-, Metastatic Breast Cancer from the ELAINE-1 Study', in the peer-reviewed journal Clinical Breast Cancer.

Discover which indication is expected to grab the major SERM market share @ SERM Market Report

SERM Market Dynamics

The SERM market is witnessing dynamic growth, driven by an increasing prevalence of hormone-related disorders such as breast cancer, osteoporosis, and infertility. SERMs function by selectively stimulating or inhibiting estrogen receptors in different tissues, offering therapeutic benefits without the widespread side effects of hormone replacement therapy. With rising global awareness of women's health issues and increasing access to healthcare in emerging markets, the demand for SERMs is projected to grow steadily. Additionally, advancements in personalized medicine are supporting the use of SERMs in targeted therapies, particularly in oncology and postmenopausal care.

A key driver of the SERM market is the high incidence of hormone receptor-positive breast cancer. As oncology treatment paradigms shift toward more targeted, less toxic therapies, SERMs continue to play a critical role in both adjuvant and preventive settings. Moreover, their utility in conditions such as osteoporosis supports their broader adoption in geriatric medicine.

However, market growth is tempered by several factors, including the emergence of alternative therapies such as aromatase inhibitors and biologics, which offer improved efficacy in certain indications. Concerns around side effects, such as thromboembolic events and endometrial cancer risk with long-term SERM use, have also led to cautious prescribing practices. Additionally, generic competition has eroded profit margins for several first-generation SERMs, prompting pharmaceutical companies to invest in next-generation compounds with better safety and efficacy profiles.

Innovation remains a key aspect of the market dynamics, with ongoing research exploring newer SERMs that can provide tissue-specific actions with reduced adverse effects. These next-generation SERMs aim to expand therapeutic applications beyond traditional indications, including cardiovascular health and cognitive disorders in postmenopausal women. Strategic collaborations, licensing deals, and regulatory approvals are shaping the competitive landscape, with companies focusing on differentiated product offerings and combination therapies.

In summary, the SERM market is marked by a strong clinical foundation, expanding therapeutic applications, and evolving competition. As aging populations and hormone-related conditions continue to rise globally, the demand for SERMs is expected to remain robust. Nevertheless, future growth will depend on continued innovation, improved safety profiles, and integration into broader personalized treatment strategies.

SERM Treatment Market 

SERMs are utilized in the treatment of various estrogen-related conditions. These include managing ovulatory dysfunction in infertility, preventing and treating postmenopausal osteoporosis, treating and lowering the risk of breast cancer, and addressing dyspareunia caused by menopause. SERMs are also combined with conjugated estrogens to manage estrogen deficiency and vasomotor symptoms linked to menopause. Their usage is tailored based on their tissue-specific activity.

Tamoxifen is a primary hormonal therapy for estrogen receptor (ER)-positive metastatic breast cancer and is also prescribed for reducing breast cancer risk in high-risk women. It serves as an adjuvant therapy in ductal carcinoma in situ with or without axillary node involvement. Additionally, tamoxifen helps improve bone density and lipid profiles in postmenopausal women.

Toremifene, a derivative of tamoxifen with chlorine substitution, was developed to reduce liver-related side effects such as DNA adduct formation and potential hepatic tumors. It is used as endocrine therapy in ER/PR-positive stage IV or recurrent metastatic breast cancer and has shown comparable efficacy to tamoxifen in both adjuvant and metastatic settings.

OSPHENA (ospemifene), an estrogen receptor agonist/antagonist, is approved for the treatment of moderate to severe dyspareunia and vaginal dryness resulting from vulvovaginal atrophy due to menopause. Initially approved by the US FDA in 2013 and marketed by Shionogi, it later gained EU approval in 2015. In 2017, Duchesnay obtained exclusive marketing rights for OSPHENA in the US and Canada.

DUAVEE (marketed as DUAVIVE in the EU) combines conjugated estrogens with a SERM and is indicated for treating moderate to severe vasomotor symptoms of menopause and for preventing postmenopausal osteoporosis. It was approved for use in the US in October 2013 and in the EU in December 2014.

Learn more about the SERM @ SERM Analysis

Key Emerging SERM and Companies

Several key players, including Atossa Therapeutics ((Z)-Endoxifen), Sermonix Pharmaceuticals (Lasofoxifene), and others are involved in developing drugs for SERMs for various indications such as breast cancer, dyspareunia and vaginal dryness, and others. Overall, this is an exciting new class of agents with great potential for development.

(Z)-Endoxifen, developed by Atossa Therapeutics, is a nonsteroidal selective estrogen receptor modulator (SERM) from the triphenylethylene class, currently in Phase II development for estrogen receptor-positive (ER+) breast cancer. This agent shows promise across multiple stages of breast cancer management: lowering breast tissue density to reduce cancer risk, decreasing cancer cell activity before surgery, and helping prevent recurrence or new tumors following initial treatment. Atossa is advancing (Z)-Endoxifen with a focus on treating metastatic breast cancer.

In April 2025, Atossa announced that the U.S. Patent and Trademark Office granted a new patent (US Patent No. 12,275,684) covering enteric oral formulations of (Z)-Endoxifen and their use in treatment methods. Earlier, in December 2024, the company presented three posters at the San Antonio Breast Cancer Symposium (SABCS), showcasing pharmacokinetic and tolerability findings from the ongoing Phase II EVANGELINE trial.

Lasofoxifene is a novel investigational endocrine therapy being studied for its effectiveness as an ESR1 antagonist, particularly in tumors with ESR1 mutations. It has demonstrated notable anti-tumor activity both as a standalone treatment and when used with a CDK4/6 inhibitor in Phase II trials. Lasofoxifene is distinguished by its selective activity in different tissues, with previously observed benefits for vaginal and bone health.

In April 2025, Sermonix Pharmaceuticals and Quantum Leap Healthcare Collaborative reported encouraging Phase II data from a neoadjuvant trial of lasofoxifene in patients with HR+/HER2- locally advanced breast cancer, showing good tolerability and early suppression of the proliferation marker Ki67 in both premenopausal and postmenopausal women. Earlier, in January 2025, Sermonix published findings in Clinical Breast Cancer from the ELAINE-1 study, comparing lasofoxifene and fulvestrant, highlighting lasofoxifene's positive effects on vaginal and vulvar symptoms in ESR1-mutated, ER+/HER2- metastatic breast cancer patients.

The anticipated launch of these emerging therapies are poised to transform the SERM market landscape in the coming years. As these cutting-edge therapies continue to mature and gain regulatory approval, they are expected to reshape the SERM market landscape, offering new standards of care and unlocking opportunities for medical innovation and economic growth.

To know more about SERM clinical trials, visit @ SERM Treatment 

SERM Overview

Selective estrogen receptor modulators (SERMs), also referred to as estrogen receptor agonists/antagonists (ERAAs), are a group of compounds that interact with estrogen receptors (ERs). Unlike full agonists or pure antagonists, SERMs exhibit tissue-specific actions, meaning they can either stimulate or block estrogenic effects depending on the target tissue. This selective behavior is due to their ability to bind to the two estrogen receptor subtypes, ERα and ERβ, in ways that influence their activity uniquely across different tissues. The resulting effects are determined by how SERMs modify signaling pathways in a tissue-dependent manner, rather than by directly altering DNA. In the context of bone health, SERMs help regulate bone metabolism by decreasing osteoclast activity via a mechanism involving transforming growth factor-β3, leading to reduced bone resorption and thereby supporting the prevention and treatment of osteoporosis.

SERM Epidemiology Segmentation

The SERM market report proffers epidemiological analysis for the study period 2020–2034 in the 7MM, segmented into:

• Total Cases of Selected Indication for SERM
• Total Eligible Patients of the Selected Indications
• Total Treated Cases in Selected Indications for SERMs 

Scope of the SERM Market Report

• SERM Therapeutic Assessment: SERM current marketed and emerging therapies
• SERM Market Dynamics: Conjoint Analysis of Emerging SERM Drugs
• Competitive Intelligence Analysis: SWOT analysis and Market entry strategies
• Unmet Needs, KOL's views, Analyst's views, SERM Market Access and Reimbursement

Discover more about SERMs in development @ SERM Clinical Trials

Table of Contents

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