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Quantum Leap Healthcare Collaborative Initiates Landmark Phase 2 RECAST DCIS Platform Trial to Evaluate Alternative DCIS Treatments with Atossa Therapeutics, Havah Therapeutics, and the Menarini Group

40-site U.S. trial enrolling more than 300 patients could significantly change the way DCIS is treated and reduce possibly unnecessary surgery

SAN FRANCISCO, October30, 2023 /PRNewswire/ —Quantum Leap Healthcare Collaborative (QLHC) announces the enrollment launch for the Re-Evaluating Conditions for Active Surveillance Suitability as Treatment: Ductal Carcinoma In Situ (RECAST DCIS), a Phase 2 platform study aimed at preventing the progression of DCIS to breast cancer. The study is evaluating three investigational endocrine therapy arms: (Z)-endoxifen, a selective estrogen receptor modulator (SERM) in development by Atossa Therapeutics (Nasdaq: ATOS);HAVAH T+Ai™, a proprietary combination of testosterone (T) and anastrozole (Ai)that targets the androgen and estrogen receptor pathways in development byHavah Therapeutics; and ORSERDU®(elacestrant), the only FDA approved oral selective estrogen receptor degrader (oSERD) in development by Stemline Therapeutics Inc. (Stemline), a wholly-owned subsidiary of the Menarini Group.  

“DCIS indicates the very earliest, noninvasive stage of the disease, that’s why it is important for us to seek out alternative therapies for DCIS patients and find ways to reduce toxicity and unnecessary surgeries. We are excited to partner with three innovative companies to explore new treatments for this large and often over-treated patient population,” said Laura Esserman, MD, a lead investigator for the study and founder of QLHC.      

Surgery is the current standard treatment for DCIS even though many patients never progress to breast cancer, which means that patients are often over-treated with invasive procedures. This new trial, sponsored and operated by QLHC, offers DCIS patients up to six months of endocrine therapy with the intent to forego surgery and instead be monitored via long-term active surveillance, if appropriate. A key element in reducing overtreatment of DCIS is identifying biomarkers that reflect the risk of progression so that those with low-risk lesions are spared surgery. RECAST DCIS features the assessment of imaging and molecular-based biomarkers in addition to evaluating new investigational agents in this setting. The study is open to enrollment with each investigational agent arm expected to enroll up to 110 patients.

The three collaborators for this trial, Atossa Therapeutics, Havah Therapeutics, and Stemline, all aim to find alternative solutions for DCIS patients and are providing different agents for assessment.

Atossa’s (Z)-endoxifen has the potential to mitigate breast cancer risk(by reducing the density of breast tissue); to reduce cancer cell activity before surgery; and to reduce the risk of recurrent or new breast cancer after the initial treatment. According to published studies, (Z)-endoxifen is a competitive inhibitor of ERα and represses ERα transcriptional activity(Z)-endoxifen is 100-fold more potent in anti-estrogen activity compared toother SERMs. (Z)-endoxifen also binds to and disrupts protein kinase C beta one function (PKCb1, a known oncogenic protein). The National Cancer Institute(NCI) and others have studied (Z)-endoxifen and have demonstrated promising results in the treatment of breast cancer as well as for the treatment of other solid tumors. Treatment with (Z)-endoxifen may avoid off target effects of tamoxifen and remaining metabolites potentially increasing adherence by improving the safety profile.

Havah Therapeutics’ HAVAH T+Ai™ combines T, the natural ligand for the androgen receptor and Ai, an inhibitor of T conversion to estradiol, to modulate the growth of abnormal breast tissues. HAVAH T+Ai™ is a proprietary combination subcutaneously delivered system to overcome hormonal symptoms by balancing hormonal irregularities in the breast, developed from more than 10years of clinical research into hormonal regulation in women. Havah has extensive clinical experience using HAVAH T+Ai™ to address pre- and postmenopausal prevention of breast disease, and the company generated data from more than 1,000 Australian women with breast disease through an ongoing open label cohort study (more than 6,200 implants), with critical safety pharmacokinetic and early efficacy data already demonstrated.

Stemline’s Elacestrant (ORSERDU), was approved by the U.S. Food & Drug Administration in January 2023 for the treatment of postmenopausal women or adult men with estrogen receptor(ER)-positive, HER2-negative, ESR-1 mutated advanced or metastatic breast cancer, following at least one line of endocrine therapy. For more information including full prescribing information and important safety information, please visit https://www.orserdu.com/

About Quantum Leap Healthcare Collaborative

Quantum Leap Healthcare Collaborative is a 501c(3) charitable organization established in 2005 as a collaboration between medical researchers at University of California, San Francisco and Silicon Valley entrepreneurs. Our mission is to integrate high-impact research with clinical processes and systems technology, resulting in improved data management and information systems, greater access to clinical trial matching and sponsorship, and greater benefit to providers, patients and researchers. Our goal is to improve and save lives. For more information, visit https://www.quantumleaphealth.org/.

About Atossa

Atossa Therapeutics is a clinical stage biopharmaceutical company developing innovative medicines in areas of significant unmet medical need in oncology. Atossa’s current focus is on breast cancer. More information is available at atossatherapeutics.com.

About Havah Therapeutics

Havah Therapeutics is a biopharmaceutical company developing innovative, proprietary hormonal therapies that aim to improve quality of life for women. Havah brings together a world-class team passionate about helping women live lives free from the suffering caused by breast pain, debilitating menopausal symptoms and breast cancer. More information is available at www.havahtx.com.

About The Menarini Group

The Menarini Group is a leading international pharmaceutical and diagnostics company, with a turnover of over $4.4 billion and over 17,000 employees. Menarini is focused on therapeutic areas with high unmet needs with products for cardiology, oncology, pneumology, gastroenterology, infectious diseases, diabetology, inflammation, and analgesia. With 18 production sites and 9 Research and Development centers, Menarini’s products are available in 140 countries worldwide. For further information, please visit www.menarini.com.

About Stemline Therapeutics Inc.

Stemline Therapeutics, Inc. (“Stemline”) a wholly-owned subsidiary of the Menarini Group, is a commercial-stage biopharmaceutical company focused on the development and commercialization of novel oncology therapeutics.  Stemline commercializes ORSERDU® (elacestrant) in the United States, an oral endocrine therapy indicated for the treatment of postmenopausal women or adult men with estrogen receptor (ER)-positive, human epidermal growth factor receptor 2(HER2)-negative, ESR1-mutated advanced or metastatic breast cancer with disease progression following at least one line of endocrine therapy.  Stemline also commercializes ELZONRIS®(tagraxofusp-erzs), a novel targeted treatment directed to CD123 for patients with blastic plasmacytoid dendritic cell neoplasm (BPDCN), an aggressive hematologic cancer, in the United States and Europe, which is the only approved treatment for BPDCN in the US and EU to date. Stemline also commercializes NEXPOVIO® in Europe, an XPO1 inhibitor for multiple myeloma. Stemline also has an extensive clinical pipeline of small molecules and biologics in various stages of development for a host of solid and hematologic cancers.

QLHC Media Contact:
‍Jacqueline Murray
Marketing and Communications Director
j.murray@quantumleaphealth.org
(415) 839-8082

Atossa Media Contact:
‍Eric Van Zanten
VP, Investor and Public Relations
eric.vanzanten@atossainc.com
(610) 529-6219

Havah Media Contact:
‍Matt Brewer
mb@havahtx.com

Danielle Clark-Brown
dcb@havahtx.com

Stemline Media Contact:
Cheya Pope
cpope@menarinistemline.com

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Tracey Heather

Advocate Liaison

As Patient Engagement Lead at Quantum Leap, I manage follow-up data projects for the I-SPY 2 Trial, develop strategies to strengthen patient engagement, and oversee the I-SPY Advocate group. After six successful years raising funds to support Quantum’s mission, I embraced this new role last summer, drawn by the opportunity to make a direct impact on the patients we serve. Each day brings new challenges and insights, and I especially enjoy supporting and collaborating with our inspiring I-SPY Advocates.

Outside of work, I am pursuing a Master of Public Administration with a focus on nonprofit management at SF State. I’m passionate about trail running, skiing, live music, camping, traveling, and collegiate gymnastics—my daughter competes at Oregon State. For the past 5 years, I have volunteered with SF CASA as a mentor to an incredible 18-year-old foster youth whose resilience continually reminds me of life’s true priorities.

Carolyn Clark Beedle

Carolyn Clark Beedle, a 2023 breast cancer survivor, joined the advocate program after successful completion of treatment with the UCSF Breast Oncology Program. Her experience working with a patient advocate during her TNBC treatment led to an understanding that empowering women to advocate for their own health and healthcare will contribute to improved health outcomes and broader access to care. Carolyn began advocating for cancer patients and their families during her treatment, now is a member of the Breast Science Advocacy Core (BSAC) with the UCSF Breast Oncology Program, and currently shares information and research with CFNP associates at La Clinica in the Bay Area to inform and empower their patient population.

Carolyn is continuing her on the ground training as an advocate reviewer with both Quantum Health and BSAC and is enrolled in the Patient Advocacy Training in Health Science course with Stanford Medicine. Her 30+ career in corporate marketing/communications, program development and non-profit leadership augmented by her breast cancer treatment experience serves Carolyn well in representing and communicating the patient voice and perspective.

She received her BA (History/English Lit) and MA (Public History/Research and Record Management) from the University of San Diego, is a proud fifth generation San Franciscan, and active board member with numerous non-profits that support social work and the arts.

Silver Alkhafaji

Silver Alkhafaji is a PhD candidate in the Pharmaceutical Sciences and Pharmacogenomics (PSPG) program at UCSF. She received her Bachelor of Science in Chemical Biology from UC Berkeley. Prior to UCSF, she worked in the Clinical Pharmacology Department at Genentech. Silver’s current research focuses on non-invasive liquid biopsies to predict response and side effects of immunotherapies and endocrine therapies in early-stage breast cancer participants in I-SPY 2.

Silver is interested in clinical outcomes research to advance precision medicine and improve cancer patients’ quality of life. She is passionate about health equity, inclusive research, patient advocacy, and women’s health.
Silver volunteers at the Patient and Family Cancer Support Center at UCSF where she assists in patient navigation and connecting patients and their families with resources that improve their healthcare experience while receiving cancer treatments and/or during survivorship. 

Through her DEI work in her PhD program, Silver raises awareness around issues related to social justice and community building through organizing community-centered events. Additionally, she is a member of the Life Sciences Career Advisory Council at Thrive Scholars, where she enjoys supporting college students of color from economically disadvantaged communities in providing the opportunities they need to thrive at top colleges and in high-trajectory careers. 

Silver is a member of the American Association of University Women (AAUW) Alameda Branch where she focuses her efforts on increasing membership of community college women coming from exceptional backgrounds: student parents, low-income, and first-generation college students.

In her free time, she writes poetry and prose on emotional healing, radical acceptance, and patience. Writing has helped her process difficult situations and connect with people on a deeper level.

Jane Mortimer

Jane is a breast cancer survivor and advocate dedicated to positively impacting the lives of women affected by the disease. Diagnosed with triple negative breast cancer in 2012, she participated in the I-SPY 2 trial at UCSF and has been cancer free for more than ten years.

Her advocacy journey began in 2003 at UCSF as a volunteer with the Patient and Family Cancer Support Center and Decision Support Services and she previously managed the Peer Support program at UCSF. Drawing on her experience in marketing and media strategy, she uses her skills to make a meaningful impact by supporting advocacy and research that improves outcomes for women living with breast cancer.

Jan Tomlinson

In March of 2023 , Jan was diagnosed with a large aggressive triple negative breast cancer and informed that her cancer was the” bad girl” of cancer and offered standard chemotherapy for 24 weeks. Devasted by the diagnosis Jan felt like she had a dire prognosis. After seeking several opinions, she opted to join a Clinical Trial program for her treatment. The trial consisted of significantly less chemotherapy, and monitored closely over a 12-week period, The data predicted a complete pathological response , and she then went immediately to surgery. Pathology reports supported that she had a successful outcome reaching PCR meaning the tumor was gone, and no residual cancer was found in the surrounding tissue or lymph nodes. Jan was thrilled when her surgeon advised her of the results. The experience made Jan want to give back and share information that she received when she was at a critical juncture in her diagnosis. She is so passionate about making sure that everyone knows that the standard of care is one treatment option.

As she says, “ clinical trials have to be on the table” Because she achieved PCR, she expects a great outcome. She wants to share her story and encourage other women to strongly consider and participate in clinical trials. Jan is a UCSF Patient Advocate, involved in several programs they lead. Jan also is a BLACC Cab Member. Jan recently was in Washington DC to participate on a panel on Clinical Trials for ISPY at the National Press Club. UCSF will be hosting the RISE Up For Breast Cancer event where Jan will share her experience with clinical trials.

Deborah Collyar

Deb is a connector who founded Patient Advocates in Research (PAIR) “where research meets reality,” bringing ideas and people together for medical advances that offer real results for diverse patients and families.

Her vast experience between the worlds of tech, communication, strategy, management, policy, and equity bridges gaps between patients, scientists, medical providers, payers, governments, and non-profits.

Deb infuses patient engagement into projects, gathers relevant patient input, and encompasses many diseases, programs and policies at grassroots, national and international levels through companies, academia, and governments.

Key patient insights are delivered throughout discovery, development, clinical trials, results reporting, data-sharing, standards, genomics, and into practice.

Her experience spans translational and clinical research, epidemiology, health outcomes, and health delivery research with academia, federal agencies, companies, and patient communities.