This present case pertains to a 48-year-old woman with a history of antiphospholipid syndrome, who presented with progressive fatigue, generalized weakness, and orthopnea acutely. She had a prior diagnosis of antiphospholipid syndrome with recurrent deep vein thromboses (DVTs) and repeated demonstration of lupus anticoagulants. She presented in cardiogenic shock with markedly elevated troponin and global myocardial dysfunction on echocardiography, and cardiac catheterization revealed minimal disease. Cardiac magnetic resonance imaging was performed, which revealed findings of perfusion defects and microvascular obstruction, consistent with the pathophysiology of catastrophic antiphospholipid syndrome (CAPS). Diagnosis was made based on supportive imaging, including head magnetic resonance imaging (MRI) revealing multifocal, acute strokes; microvascular thrombosis in the dermis; and subacute renal infarctions. The patient was anticoagulated with intravenous unfractionated heparin and received high-dose methylprednisolone, plasmapheresis, intravenous immunoglobulin, and one dose each of rituximab and cyclophosphamide. She convalesced with eventual myocardial recovery after a complicated course. The diagnosis of CAPS relies on the presence of (1) antiphospholipid antibodies and (2) involvement of multiple organs in a microangiopathic thrombotic process with a close temporal association. The myocardium is frequently affected, and heart failure, either as the presenting symptom or cause of death, is common. Despite echocardiographic evidence of myocardial dysfunction in such patients, MRIs of CAPS have not previously been reported. This case highlights the utility in assessing the involvement of the myocardium by the microangiopathic process with MRI. Because the diagnosis of CAPS requires involvement in multiple organ systems, cardiac MRI is likely an underused tool that not only reaffirms the pathophysiology of CAPS, but could also clue clinicians in to the possibility of a diffuse thrombotic process.
Targeting Pancreatic Cancer Metastasis by Inhibition of Vav1, a Driver of Tumor Cell Invasion
Background— The incidence and cause of sudden cardiac death (SCD) in athletes is debated with hypertrophic cardiomyopathy often reported as the most common cause. Methods and Results— A database of all National Collegiate Athletic Association deaths (2003–2013) was developed. Additional information and autopsy reports were obtained when possible. Cause of death was adjudicated by an expert panel. There were 4 242 519 athlete-years (AY) and 514 total student athlete deaths. Accidents were the most common cause of death (257, 50%, 1:16 508 AY) followed by medical causes (147, 29%, 1:28 861 AY). The most common medical cause of death was SCD (79, 15%, 1:53 703 AY). Males were at higher risk than females 1:37 790 AY versus 1:121 593 AY (incidence rate ratio, 3.2; 95% confidence interval, 1.9–5.5; P <0.00001), and black athletes were at higher risk than white athletes 1:21491 AY versus 1:68 354 AY (incidence rate ratio, 3.2; 95% confidence interval, 1.9–5.2; P <0.00001). The incidence of SCD in Division 1 male basketball athletes was 1:5200 AY. The most common findings at autopsy were autopsy-negative sudden unexplained death in 16 (25%), and definitive evidence for hypertrophic cardiomyopathy was seen in 5 (8%). Media reports identified more deaths in higher divisions (87%, 61%, and 44%), whereas the percentages from the internal database did not vary (87%, 83%, and 89%). Insurance claims identified only 11% of SCDs. Conclusions— The rate of SCD in National Collegiate Athletic Association athletes is high, with males, black athletes, and basketball players at substantially higher risk. The most common finding at autopsy is autopsy-negative sudden unexplained death. Media reports are more likely to capture high-profile deaths, and insurance claims are not a reliable method for case identification.
Abstract 574: Exosomal miR-1290 and miR-375 as prognostic markers in metastatic castrate resistant prostate cancer
Abstract PURPOSE: Cell free circulating microvesicles (in particular, exosomes) contain proteins and nuclei acids that may serve as biomarkers for disease diagnosis and prognosis. The goal of this study was to identify exosomal microRNAs that may predict clinical outcome of patients with castrate resistant prostate cancer (CRPC). EXPERIMENTAL DESIGN: In discovery stage, we performed RNA sequencing using plasma exosomal RNAs derived from 36 patients with CRPC. We mapped the sequence reads to known miRbase (Release 19, 2043 entries) and normalized the miRNA abundance by sequence counts per million mappable reads. We applied Cox regression analysis to identify the miRNAs that were associated with overall survival of CRPC. In validation stage, we first examined an exosomal small RNA sequencing dataset consisting of 192 individuals with various health conditions. We used Normfinder and Bestkeeper to select most stably expressed miRNAs as candidates for normalization references. We then applied real-time qRT-PCR assays to test selected candidate reference miRNAs and survival-related miRNAs in additional 100 CRPC patients. From validated miRNAs, we constructed multivariate models to predict overall survival for this group of patients. RESULTS RNA sequencing generated over 6 million mappable reads per patient in the initial discovery cohort. Among these reads, ∼45% were mapped to known miRNAs for a total of 483 known and 275 novel miRNAs with normalized read counts ≥ 5. The median follow-up time for the 36 CRPC patients was 35.6 months during which 10 patients had died. Cox regression analysis identified four microRNAs (miR-1290, -1246, -375 and a predicted miRNA at chromosome 12) that were associated with overall survival (FDR<0.05). Of six selected candidate miRNAs, miR-30a/e-5p performed the best in their stability as endogenous references for real-time qRT-PCR. When normalized by these internal controls, we confirmed two of the three known miRs (miR-1290 and -375) showing significant association with overall survival in the validation cohort (p<0.001) with a median follow up time of 12.5 (range: 1-41) months at which time 28 patients had died. The median overall survival for patients with high (N=21) and low (N=40) expression in both miR-1290 and -375 was 7.2 (1-26.7) months and 15.3 (1-41) months, respectively (p<0.05). The miR-1290/-375-based prediction model consistently showed better predictive performance with AUC=72% than clinical variable-based model with AUC=64%. CONCLUSIONS: Plasma exosomal miRNAs provide an easily accessible resource for biomarker development in prognosis of advanced prostate cancer. Exosomal miR-1290 and miR-375 are associated with overall survival in CRPC patients. miR-30a/e-5p, especially the geometric mean of miR-30a/e-5p, are qualified endogenous references for real-time qPCR. Further confirmation of these findings is needed for prognostic and predictive biomarker in development of CRPC stage. Citation Format: Xiaoyi Huang, Tiezheng Yuan, Meihua Liang, Meijun Du, Shu Xia, Rachel Louise Dittmar, Zhifu Sun, Yan Lu, Stephen N. Thibodeau, Lisa Boardman, Manish Kohli, Liang Wang. Exosomal miR-1290 and miR-375 as prognostic markers in metastatic castrate resistant prostate cancer. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 574. doi:10.1158/1538-7445.AM2014-574
Abstract 4026: Attenuation of pancreatic cancer cell migration and invasion through a targeted inhibition of the Rac GEF Vav1
Abstract Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal forms of human cancer, due in large part to a high incidence of metastasis and resistance to conventional chemotherapies. As such, new therapies are needed to halt the metastatic process. The proto-oncogene Vav1 is ectopically expressed in over half of human pancreatic cancers, and its expression correlates with a poor prognosis in humans and promotes survival and transformation in isolated tumor cells. We have found that Vav1, through its GEF activity towards Rac1, also potently induces migration by pancreatic tumor cells. In addition, Vav1 also signals through Cdc42 to drive the formation of invadopodia and matrix degradation, which also promotes tumor cell invasion. Importantly, the activation of Vav1 circumvents the requirement for active Src in this process. Because Vav1 is ectopically expressed in pancreatic cancers and is a potent regulator of tumor cell survival, proliferation, and invasive migration, it could provide a specific therapeutic target for these tumors. Recently, the anti-inflammatory agent azathioprine was described as an inhibitor of Vav1/Rac1 activity in hematopoietic cells. Therefore, we hypothesized that azathioprine could also inhibit the Vav1-driven processes of proliferation and invasion in pancreatic tumor cells. Indeed, we have determined that azathioprine treatment of cultured human PDAC cells reduces viability and proliferation. Further, similar to siRNA-mediated depletion of Vav1, azathioprine treatment reduces cell migration, as well as the matrix degradation required for invasion. Vav1-expressing tumor cells were more sensitive to azathioprine than Vav1-negative cells, supporting the premise that the inhibitory effects of azathioprine are mediated through Vav1. Finally, azathioprine also reduces metastasis in a xenograft model of pancreatic cancer. Taken together, these data uncover a role for aberrantly expressed Vav1 in regulation of the cytoskeletal machinery required for migration and invasion, and in the promotion and metastasis of pancreatic cancer. Even with the expression of multiple Rho family GEFs, tumor cells that upregulate Vav1 have become dependent upon this exchange factor, implicating Vav1 as a potent node for therapeutic intervention. Supported by R01 CA104125 and R03 CA155778 to M.A.M. Citation Format: Gina L. Razidlo, Christopher Magnine, Arthur C. Sletten, Rachel M. Hurley, Mark A. McNiven. Attenuation of pancreatic cancer cell migration and invasion through a targeted inhibition of the Rac GEF Vav1. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 4026. doi:10.1158/1538-7445.AM2014-4026
Abstract S6-02: TBCRC023: A randomized multicenter phase II neoadjuvant trial of lapatinib plus trastuzumab, with endcorine therapy and without chemotherapy, for 12 vs. 24 weeks in patients with HER2 overexpressing breast cancer
Abstract Background: We have previously shown in animal models that combination anti-HER2 therapy leads to complete tumor regression of HER2+ breast cancer (BC). We translated these findings in a neoadjuvant trial of 12 weeks (wks) of L+T (TBCRC006) that demonstrated a meaningful pathologic complete response (pCR) and near pCR (in ER+ tumors) in patients with locally advanced HER2+ BC. In the present trial, we sought to determine whether longer treatment would lead to a higher rate of pCR without the use of chemotherapy by converting near pCR to pCR especially in the ER+ subset. Methods: TBCRC023 (NCT00999804) is a randomized phase II trial combining a Simon Phase 2 design in the experimental arm with a pick-the-winner design, not powered for direct comparison. Women with HER2+ BC measuring 2 cm or larger were eligible and were randomized in a 1:2 ratio to 12 vs. 24 wks of L+T. Letrozole (along with ovarian suppression if premenopausal) was also administered in patients whose tumors were also ER+. Serial tumor biopsies were obtained at baseline, wk 1, wk 12, and at the time of surgery. All evaluable patients were assessed for pCR, defined as no residual invasive carcinoma in the breast. Patients did not undergo surgery, withdrew consent, or received additional neoadjuvant therapy were counted as non-responders. Results: Ninety-seven patients were enrolled (33 in 12-wk arm and 64 in 24-wk arm), of whom 95 were evaluable. Seventy seven percent of patients were white and 18% were black. Twenty percent were of Hispanic ethnicity. Median age was 51 and 55% were postmenopausal. Median tumor size was 5 cm and 65% were ER+. Study treatment was well tolerated with grade 1-2 diarrhea (24% in 12-wk arm, 31% in 24-wk arm) and grade 1-2 acneform rash (12% in 12-wk arm, 19% in 24-wk arm) being the most common toxicities. Grade 3 toxicities were uncommon and were mostly in the 24-wk arm (elevated liver function test: 9%, diarrhea 2%, mucositis 2%), while the 12-wk arm had one grade 3 anemia and the study’s only serious adverse event (acute kidney injury). There were no grade 4 toxicities. The experimental arm completed stage 2 accrual and pCR rate was numerically superior to control, entirely due to better results in ER+ (Table 1), but lower than the expected pCR rate of 36% needed in the planned analysis to conclude in favor of enhanced efficacy with extended therapy. pCR rates were also lower in the control arm than in the previous study. Table 1. pCR rates 12-week arm % (n)24-week arm % (n)ER-positive8.7% (2/23)33.2% (13/39)ER-negative20% (2/10)8.7% (2/23)Overall pCR12.2% (4/33)24.2% (15/62) Conclusions: Treatment with L+T (with endocrine therapy in ER+ tumors) for 24 weeks leads to doubling of the pCR rate in women with HER2+ breast cancer without using cytotoxic chemotherapy. This approach is effective and well tolerated and warrants study as part of a de-escalation strategy that may spare some patients the cost and toxicity of chemotherapy. Tissue obtained on this trial will provide a valuable resource to validate correlative findings from our prior studies and discover new biomarkers to help guide proper patient selection for treatment. Citation Format: Mothaffar F Rimawi, Polly A Niravath, Tao Wang, Brent Rexer, Andres Forero, Antonio C Wolff, Rita Nanda, Anna M Storniolo, Ian Krop, Matthew P Goetz, Julie R Nangia, Sao Jiralerspong, Anne C Pavlick, Carolina Gutierrez, Rachel Schiff, Susan G Hilsenbeck, C Kent Osborne. TBCRC023: A randomized multicenter phase II neoadjuvant trial of lapatinib plus trastuzumab, with endcorine therapy and without chemotherapy, for 12 vs. 24 weeks in patients with HER2 overexpressing breast cancer [abstract]. In: Proceedings of the Thirty-Seventh Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2014 Dec 9-13; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2015;75(9 Suppl):Abstract nr S6-02.
Abstract P1-09-04: Longitudinal evaluation of taxane-induced neuropathy in early stage breast cancer
Abstract Introduction Chemotherapy-induced peripheral neuropathy (CIPN) is a dose-limiting toxicity of several chemotherapy drug classes, including taxanes. Peripheral neuropathies have been shown to lead to pain, falls, and difficulty in walking and performing activities of daily living in a variety of patient populations. Although the prevalence of CIPN has been noted in cancer patients, the development of self-reported symptoms, gait changes and balance changes during treatment have not been well explored to date. We hypothesized that the use of taxane-based chemotherapy will result in significant changes in spatiotemporal gait and balance parameters, as well as self-reported quality of life and function. Methods We characterized the alterations in gait and balance that occur in non-metastatic breast cancer patients during taxane chemotherapy. We evaluated (1) spatiotemporal gait parameters, including cadence and step length, and (2) balance parameters, including time-to-contact and 95% ellipse area, using each patient as her own control. Laboratory assessment of gait and balance was conducted at baseline and at completion of therapy in selected patients. We compared the natural history of changes in gait and balance parameters with changes in CIPN status as measured by validated patient reported outcomes, including EORTC QLQ-C30, CIPN-20, and Brief Pain Inventory Short Form (BPI-SF), and the Duke Activity Status Index (DASI). Time points included pre-chemotherapy, after each cycle of chemotherapy, and one month after the end of therapy to collect information on neuropathy, pain and functional capacity. The preliminary data were illustrated using individual plots; trend lines (changing over time) were based on least square means at each time point, which were estimated using the linear mixed models for repeated measures. Results To date, 15 patients with localized breast cancer have been enrolled; patient recruitment is ongoing. The median age is 42 years (range 25-67). Ten patients (67%) received weekly paclitaxel, 1 patient (7%) received paclitaxel every 2 weeks, and 4 patients (27%) received docetaxel every 3 weeks. Preliminary results with these 15 patients, based on least square means at each timepoint, showed trends in several parameters. As treatments progressed, patients tended to develop more difficulty in quiet balance and in their ability to actively shift weight in the sagittal and frontal planes. From the CIPN-20, they also tended to develop increased difficulty with sensory and motor systems. From the QLQ-C30, their global health status also tended to worsen. For most of these parameters, the largest changes were observed between the 2nd and 3rd treatments, though some changes were not observed until the 4th treatment. From the BPI-SF, no trends in pain symptoms or pain interference were observed within this preliminary cohort. Conclusions Gait and balance testing is feasible in the clinical setting. Preliminary observations suggest that balance, function and quality of life may all be affected by taxane therapy, even without pain symptoms. The findings of this study will enable us to better characterize the neurotoxic effect of taxanes and to ultimately test the effectiveness of preventative measures and interventions. Funding by NCI R03CA182165-01. Citation Format: Maryam B Lustberg, Scott Monfort, Janani Singaravelu, Raquel E Reinbolt, Xueliang Pan, Bhuvaneswari Ramaswamy, Rachel M Layman, Robert Wesolowski, Ewa Mrozek, Erin Macrae, Charles Shapiro, Robyn Patrick, Charles L Loprinzi, Ajit Chaudhari. Longitudinal evaluation of taxane-induced neuropathy in early stage breast cancer [abstract]. In: Proceedings of the Thirty-Seventh Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2014 Dec 9-13; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2015;75(9 Suppl):Abstract nr P1-09-04.
Abstract P1-09-03: Prevention of aromatase Inhibitor (AI)-induced joint symptoms with omega-3 fatty acid supplementation: A randomized placebo-controlled pilot study
Abstract Introduction: AI-induced joint symptoms negatively impact drug adherence and quality of life. Based on observations that n-3 polyunsaturated fatty acids (PUFAs) have anti-inflammatory effects and that the mechanism of AI-induced joint symptoms may be partly due to inflammation, we hypothesized that women taking more n-3 PUFAs are less likely to develop AI-induced joint symptoms. Methods: We conducted a randomized, double-blind, placebo-controlled study comparing n-3 PUFA vs placebo in postmenopausal breast cancer patients starting adjuvant AIs. Participants were randomized to n-3 supplements [2.58 g eicosapentaenoic acid + 1.74 g docosahexaenoic acid/day; Marine Nutriceuticals, Mt. Bethel, PA] vs matched placebo for 24 weeks (wks). Primary endpoints was feasibility; secondary outcomes were self-reported symptoms as assessed by the Brief Pain Inventory short form (BPI-SF), Functional Assessment of Cancer Treatment, Breast & Endocrine Symptoms (FACTB-ES), and Stanford's Health Assessment and Disability Index (HAQ) at baseline prior to AI receipt, 12 and 24 wks. Compliance and toxicity were evaluated monthly. Serial peripheral blood n-3 PUFA levels and inflammatory cytokines (IL-6, TNFR2, IL-17) were drawn. MRI of hands/wrists was performed in selected patients using a 3 Tesla dedicated wrist coil at baseline and treatment end. Results: Forty-four women were enrolled and randomized to study drug; 42 received ≥1 cycle (4 wks) of treatment; 36 had ≥1 post treatment evaluation at wk 12 or 24. Median age was 59.5 (range 43-76); history of prior taxane (n=15, 34%). The two groups’ baseline characteristics were similar. Overall, 93% and 88% of patients took >80% of the placebo and n-3 PUFA doses, respectively. Baseline erythrocyte n-3 PUFA was similar for both groups (6.6% ± 1.6%, 7.2% ±1.9%, p=0.20), but higher in the n-3 PUFA arm by wk 24 (6.5%±1.0% vs 15.0%±3.3%, p<0.001). Most toxicities were grade 1; the n-3 PUFA arm had only 1 (2.5%) grade 3 toxicity (diarrhea). The n-3 PUFA arm reported lower mean BPI-SF scores after treatment [(-.0.28/ -0.25 at week 12/24); but not statistically significant compared to placebo (p=0.494 and 0.601)]. Based on BPI-SF, the n-3 PUFA arm reported less interference of pain symptoms compared to placebo at 12 weeks (-.72, p=0.08). This arm also had a decreased walking, activity and working (WAW) score on BPI-SF at 12 weeks (-.81 p=0.05), and reported significantly greater pain relief from medications at 12 (p=0.043) and 24 weeks (p=0.011). Both arms had similar baseline and wk 24 serum IL-6 levels; levels decreased from baseline to wk 24 in the n-3 PUFA arm (-0.54±0.25, p=0.048). There was a non-significant trend (p= 0.2) toward decreased wrist inflammation by MRI imaging at 24 wks in the n-3 PUFA arm. Conclusions: This is the first randomized pilot study to show that n-3 PUFA supplementation to prevent AI-induced joint symptoms is feasible and well tolerated. There is preliminary evidence that this intervention may help reduce the burden of AI-induced arthralgias. OSU Study #11022; ClinicalTrials.gov Identifier: NCT01478477. Grants from the National Cancer Institute (CA037447-26) to the Alliance for Clinical Trials in Oncology supported this pilot study. Citation Format: Maryam B Lustberg, Tonya Orchard, Xueliang Pan, Raquel Reinbolt, Amanda Logan, Joanne Lester, Rachel M Layman, Erin Macrae, Ewa Mrozek, Bhuvaneswari Ramaswamy, Robert Wesolowski, Michael Berger, Michael Knopp, Charles Loprinzi, Charles L Shapiro, Lisa Yee. Prevention of aromatase Inhibitor (AI)-induced joint symptoms with omega-3 fatty acid supplementation: A randomized placebo-controlled pilot study [abstract]. In: Proceedings of the Thirty-Seventh Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2014 Dec 9-13; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2015;75(9 Suppl):Abstract nr P1-09-03.
Abstract 4694: Indices of actionability and clinical utility in a CLIA-enabled study of whole genome/exome/RNA sequencing in 33 cancer patients: Actionable vs. utility
Abstract Background: Whole genome/exome/RNA sequencing has revolutionized the ability to assess the genomic landscape of cancer and is increasingly being utilized for clinical decision-making. Initial clinical applications have been constrained by specimen quantity, analyte quality and the time from sample acquisition to results report. Methods: Patients with advanced cancers underwent surgical resection, excisional/core biopsies, or bone marrow biopsy. Samples were analyzed by whole genome or exome sequencing in addition to RNA sequencing, bioinformatics analysis, and therapeutic target prioritization by a multi-disciplinary Clinical Genomics Board. All prioritized targets were CLIA validated using Sanger sequencing, RT-qPCR, FISH, or IHC as appropriate. Treatment was delivered using off-label FDA approved drugs, clinical trials, or single patient INDs. Results: We have enrolled 40 patients for whom sequencing data is available on 33. The initial 6 patients were evaluated in a non-CLIA pilot phase and 27 in a CLIA-enabled phase. Tumor types in the CLIA-enabled phase with the highest enrollment were pancreatic cancer (n=8) and cholangiocarcinoma (n=8). We sought to quantify the targets identified along with clinical benefit, defining these as the “Actionable Index” (AI) (proportion of patients with ≥ 1 putative drug target) and “Utility Index” (UI) (proportion of patients who derive clinical benefit). Putative therapeutic targets were identified in 7/8 (AI=0.88) cholangiocarcinoma (CC) patients and in 5/8 (AI=0.63) pancreatic cancer (PC) patients. All 3 CC patients who received target directed treatment achieved a partial response (UI=0.38). In contrast, none of the 4 PC patients who received target directed therapy had treatment response (UI=0.0). Interestingly no actionable targets were identified in 1 CC and in 2 PCs. One CC with an identified target was unable to access the drug and subsequently died. A CC patient and a PC patient, each with identified targets, expired prior to the initiation of therapy. Conclusions: While whole genome/exome/RNA sequencing is providing unparalleled detail of tumor genomes, the application to the clinic must be carefully considered. Actionability of targets will eventually need to be defined in close relation to eventual clinical utility and appropriate refinements to disease-gene-drug databases implemented. Preliminary observations in pancreatic cancer and cholangiocarcinoma demonstrate disparity in correlation between utility indices and actionable indices. Application of these tools in larger cohorts and types of tumors will need to be conducted to ascertain more precise estimates. Additional measures that are organ-site agnostic but pertain to specific targets (e.g. BRAF) will also need to be developed in order to facilitate more judicious application of sequencing in the clinical setting. Citation Format: Jan B. Egan, Alan H. Bryce, Mia D. Champion, Winnie S. Liang, Rafael Fonseca, Ann E. McCullough, Michael T. Barrett, Katherine Hunt, Rachel M. Condjella, Robert R. McWilliams, Stephen D. Mastrian, Janine LoBello, Daniel Von Hoff, David W. Craig, A. Keith Stewart, John D. Carpten, Mitesh J. Borad. Indices of actionability and clinical utility in a CLIA-enabled study of whole genome/exome/RNA sequencing in 33 cancer patients: Actionable vs. utility. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 4694. doi:10.1158/1538-7445.AM2014-4694
Association of Type and Location ofBRCA1andBRCA2Mutations With Risk of Breast and Ovarian Cancer