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Current Scholars

Dr. BJ Rimel (2020-2022)
Award: 2020 GOG Foundation/AAOGF Clinician Scientist Award
Site of Research: Cedars-Sinai Medical Center
Title of Research: Olaparib and Durvalumav in Recurrent Progressive Endometrial Cancer: A proposal for a Novel Arm of the Platform Study, NRG GY012

Despite emerging treatments in endometrial cancer, most women with advanced stage or recurrent endometrial cancer will ultimately succumb to their disease. Common genomic events occurring in endometrial cancer include genes associated with DNA damage repair. Recent data shows that these weaknesses can be exploited with agents the limit the ability of the cancer cell to repair itself. Immunotherapy treatments in endometrial cancer have demonstrated efficacy in a specific population of tumors with another weakness, microsattelite instability. The combination of two agents to manipulate these features was demonstrated as safe in a phase 1 study of olaparib and durvalumab. Our overarching hypothesis is that women with endometrial cancer (EC) will derive more benefit from rationally designed drug combinations including DNA repair targeting agents and immunotherapy than from single agent therapy alone. We have designed a randomized phase 2 study that includes this combination as part of a larger NRG Oncology study. NRG GY012 is the first platform study in endometrial cancer and the inclusion of the olaparib and durvalumab arm represents a data driven approach to clinical trial development.
 


Dr. Floor Backes (2020-2022)
Award: 2020 GOG Foundation/AAOGF Mentored Clinician Scientist Award
Site of Research: The Ohio State University
Title of Research: Phase I/II study of Lenvatinib, Pembrolizumaband weekly Paclitaxel for recurrent Endometrial, Epithelial Ovarian, Fallopian tube and primary Peritoneal cancer

Although response rates to pembrolizumab were very promising in the mismatch repair deficient population (57%), in patients with microsatellite proficient (pMMR) recurrent endometrial cancer response rates were only 13%. Similarly, single agent lenvatinib did not demonstrate significant activity in recurrent endometrial cancer, however, the combination was recently granted FDA approval for treatment of recurrent pMMR endometrial carcinoma (EC). Activity of pembrolizumab has also been seen in recurrent ovarian cancer (ORR 11.5%). Although single agent activity is relatively low, combination therapy with other agents is more promising. Taxanes have significant single agent activity in ovarian and EC. Our group conducted a phase I study of weekly paclitaxel with lenvatinib in recurrent EC and recurrent ovarian cancer with very encouraging response rates, duration of response and PFS. In order to further improve this, we propose adding pembrolizumab to weekly paclitaxel and lenvatinib. We believe that this will provide synergy as taxanes have been demonstrated to upregulate PD-1 and PD-L1 in preclinical studies, increased CD8+ tumor infiltrating lymphocytes, and activated NF-kB signaling. Thus, we hypothesize that the addition of pembrolizumab to weekly paclitaxel and lenvatinib is safe with manageable toxicities and highly effective in patients with recurrent endometrial cancer and recurrent platinum resistant ovarian, fallopian tube, and primary peritoneal cancer. We will conduct a phase II clinical trial with safety lead in to determine objective antitumor activity of weekly paclitaxel, lenvatinib, and pembrolizumab in recurrent endometrial and platinum resistant ovarian cancer, safety and tolerability, and measure the progression free and overall survival in the study population. In addition, we will explore the baseline tumor genetic and microenvironment parameters predictive of clinical benefit or resistance to the treatment combination and potential mechanisms of resistance through circulating tumor DNA analysis, immune cell population analysis (CyTOF), and evaluation of the tumor microenvironment.
 


Bradley Corr, MD (2020-2023)
Award Type: AAOGF/ABOG
Title of Research: Classification of CTNNB1 Mutation for Biomarker Driven Treatment of Endometrial Cancer
Site of Research: University of Colorado

Over the past ten years endometrial cancer incidence and mortality rates have unfortunately been on the rise despite significant advances in the science and patient care. However, our entire thinking of endometrial cancer has recently shifted away from the bi-modal type I vs type II model and into the molecular based model of genomic classification. Precision based medicine is now guiding our treatment algorithms for this malignancy. CTNNB1 mutation, which activates the Wnt/b-catenin pathway, has been described as a potential biomarker signifying a subclass of tumors with worse outcomes in patients who have historically been thought of as having a low risk of recurrence. Our objective is to validate the role of CTNNB1 as a prognostic biomarker, develop an accurate detection method using IHC, and evaluate targeted therapies for development of a clinical trial. Utilizing next-generation sequencing (NGS) and IHC analysis of a large national databank of tumors, we will validate the role of this mutation in an outcomes analysis and identify the most accurate detection methods for population-based evaluation. Furthermore, we will analyze multiple approaches to Wnt/b-catenin inhibition with the goal of developing a small molecule inhibitor into clinical trial utilizing CTNNB1 as the biomarker. Ultimately, we hope to develop a clinical trial for biomarker driven therapy in endometrial cancer utilizing CTNNB1.
 


Kristin D. Gerson, MD, PhD (2020-2023)
Award type: AAOGF/SMFM Scholar
Title: Unknown, PTD and Microbiome as Biomarkers
Site of Research: University of Pennsylvania

Sequelae of prematurity remain the leading cause of neonatal morbidity and mortality worldwide. Despite efforts to reveal underlying etiologies of spontaneous preterm birth, major knowledge gaps persist. Newer data support the concept that premature cervical remodeling may function as an initiator of early parturition. Yet, what triggers premature cervical remodeling remains unknown. Recent studies have demonstrated strong associations between non-optimal cervicovaginal microbiota and spontaneous preterm birth. It is hypothesized that cervicovaginal microbiota can trigger cervical remodeling. Providing a potential mechanism for these observed associations, microbial supernatants from some of the same bacterial taxa found to be associated with spontaneous preterm birth in the human cohort can induce cervicovaginal epithelial disruption. In other biologic systems, microbial metabolites serve as the key regulators of epithelial and mucosal compromise. A recent study from our institution revealed that cervicovaginal metabolomic output among women with high-risk microbiota can distinguish those who have spontaneous preterm birth versus term birth. No studies to date have examined mechanisms through which microbial metabolites in the cervicovaginal space may trigger or protect against spontaneous preterm birth. We propose to elucidate microbiome-metabolome interactions governing cervicovaginal epithelial disruption and premature cervical remodeling through in vitro and in vivo metabolomic experimental approaches. Select microbial metabolites may not only serve as more accurate predictive biomarkers for spontaneous preterm birth, but also carry potential as therapeutics in restoring or maintaining cervicovaginal health in pregnancy, thereby blocking the cascade of events that lead to aberrant cervical remodeling and spontaneous preterm birth.
 


Jacqueline Parchem, MD (2019-2022)
Award: SMFM/AAOGF Scholar
Site of Research: University of Texas
Title of Research: Modulation of Neural Tube Closure by Amniotic Fluid Exosomes

Neural tube defects (NTDs) are devastating birth defects that result from failure of neural tube closure during early fetal development. In spina bifida, trauma to the exposed spinal cord results in irreversible neurologic injury. Despite advances in fetal surgery, the majority of children remain unable walk and have lifelong disability. Therefore, innovative prenatal interventions have the potential to reduce residual deficits children with NTDs. To identify mechanisms governing neural tube closure and neural injury in NTDs, our study focuses on the role of amniotic fluid (AF) exosomes. Exosomes are naturally-occurring nanovesicles in the AF that facilitate cell communication through the exchange of molecular messages. While exosomes have been shown to be important for a number developmental and disease processes, the role of AF exosomes in fetal neurodevelopment is unknown. We will use a combination of in-depth molecular analyses of human AF samples and experiments in mice and cell culture to test our central hypothesis that AF exosomes modulate neural tube development and injury in NTDs. We will further test an innovative prenatal treatment strategy to determine the potential of exosome-based fetal therapy.
 


Mark Clapp, MD (2019-2022)
Award: American Board of Obstetrics & Gynecology/AAOGF Scholar
Site of Research: Massachusetts General Hospital
Title of Research: Development of an EHR-based Obstetric Risk Score

Accurate methods for risk stratification in obstetrics are essential to anticipate and prepare for potential intrapartum complications. Furthermore, risk stratification can help to ensure that patients are cared for by the appropriate provider and at the appropriate facility. Currently, few methods exist for risk stratification in pregnancy. This research project will use the vast data collected in the electronic health record (EHR) to predict severe maternal morbidity during labor and delivery. As EHR data are gathered in large quantities and in real-time by most health care institutions, the long-term goal for this research is to develop and incorporate EHR-based tools to aid in clinical decision-making and risk recognition for providers, ultimately reducing pregnancy-related morbidity and mortality.
 


Rebecca Previs, MD (2019-2022)
Award: GOG Foundation/AAOGF Scholar
Site of Research: Duke University
Title of Research: Immune Modulation of CaMKK2 in the Ovarian Tumor Microenvironment

The treatment of ovarian cancer includes a combination of surgery and chemotherapy. Although the majority of women initially respond to treatment, the likelihood of cancer progressing remains high. When this occurs, physicians treat patients with chemotherapy with modest success rates. An urgent need exists to treat ovarian cancer patients with better, lifesaving options when our current therapies are not enough. Often ovarian cancer cells, like other types of cancer, escape recognition by the bodies' natural defense system, the immune system. The immune system consists of multiple different cell types that assist in recognition of foreign cells, like cancer cells. Other cells, called T-cells, are devoted to attacking these foreign cells. In other tumor types, like melanoma, therapies are geared toward enhancing the way the immune system works to combat cancer cells. Clinical trials for this type of treatment or immunotherapy are ongoing for ovarian cancer patients. This study evaluates the role of CaMKK2, which has been observed overexpressed in the tumor cells of ovarian cancer patients whose cancer tends to recur sooner. It is also known to be expressed on several types of immune cells. We seek to modulate CaMKK2 and better understand its role within ovarian cancer and cancer-associated immune cells. The data generated by this proposal will provide the rationale for manipulating CaMKK2 in patients to make their immune system more effectively recognize foreign ovarian cancer cells, and consequently, make their cancer more responsive to therapies.
 


Nandini Raghuraman, MD (2018–2021)
Award: Foundation for SMFM/AAOGF Scholar
Site of Research: Washington University
Title of Research: Risks of intrapartum maternal oxygen supplementation: mechanisms for harm in the mother and neonate

Intrapartum oxygen (O2) supplementation for Category II fetal heart tracings is nearly ubiquitous on Labor and Delivery units, with over 60% of laboring women in the U.S. receiving supplemental O2 at some point during labor. This practice has become standard of care, yet there is no evidence of benefit and even concern for possible harm via free radical production. Hyperoxygenation in the neonate is associated with adverse outcomes such as retinopathy, bronchopulmonary dysplasia, and abnormal neurodevelopment. Similar harm has been demonstrated in adults including increased ICU morbidity from excess oxygen exposure. This calls for a closer look at the effect of intrapartum oxygen exposure on the fetus. We plan to conduct a randomized controlled trial of maternal oxygen supplementation versus room air in patients with Category II fetal heart tracings in labor. The primary objective of this study is to investigate the effect of intrapartum oxygen exposure on maternal and umbilical cord malondialdehyde, a free radical-mediated marker of oxidative stress. We will also collaborate with pediatric neurology to use magnetic resonance diffusion tensor imaging to study the effect of intrapartum hyperoxia on the neonatal brain.
 


Lauren Theilen, MD (2018–2021)
Award: American Board of Obstetrics & Gynecology/AAOGF
Site of Research: University of Utah Health/Intermountain Healthcare
Title of Research: Modifiable cardiovascular risk and cardiovascular morbidity following recurrent hypertensive disease of pregnancy

Women who have had hypertensive disease of pregnancy (HDP) in more than one pregnancy have significantly increased risks for death from heart disease and stroke before the age of 50; however, based on current guidelines, many of these women may not initiate screening for cardiovascular risk factors before age 45. We hypothesize that women with a history of recurrent HDP will develop detectable, modifiable cardiovascular risk factors within 10-15 years of their first affected pregnancy. To test this hypothesis, we will identify women with recurrent HDP who delivered their first affected pregnancy 10-15 years ago (exposed women) and match them to a group of women who also had more than one pregnancy, but who had no history of HDP in any of their pregnancies (unexposed women). We will screen both groups of women for modifiable cardiovascular risk factors, and we will compare the incidence of these risk factors among exposed and unexposed women. Women who are identified as having increased risk for cardiovascular disease will be referred to an appropriate healthcare provider for further evaluation and treatment. Additional information will be collected on an annual basis from subsequent visits to primary care providers to allow ongoing collection of data regarding cardiovascular risk and health outcomes. We will also perform a retrospective study using medical records to determine rates of cardiovascular disease (coronary artery disease, myocardial infarction, and stroke) among women with a history of recurrent HDP. Our study will provide much-needed information that may inform new screening strategies to improve long-term health among women.
 

AAOGF News

2020-21 Bridge Grant Recipients

Adetola Louis-Jacques, MD

Nazema Siddiqui, MD

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2020 Travel Award Recipients

Methodius G. Tuuli, MD, MPH, MBA
Indiana School of Medicine
AGOS President’s Award

Chad A. Grotegut, MD, MBA, MHSc
Duke University
James W. Kennedy Award

Ann Lee Chang, MD, MPH
University of Hawai’i
Henry L. Darner Award

Akila Subramaniam, MD, MPH
University of Alabama, Birmingham
Walter T. Dannreuther Award

John A. Harris, MD
University of Pittsburgh
Donald Schwarz Award

Rolanda La Mora Lister, MD
Vanderbilt University
J. Bay Jacobs Award

Sarah Prager, MD, MAS
University of Washington
AAOGF/AGOS Award

Christina Scifres, MD
Indiana School of Medicine
AAOGF/AGOS Award

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