Publications by authors named "Channing Paller"

Prostate cancer is the most commonly diagnosed cancer and the second leading cause of cancer-related death among men in the United States. The global burden of this disease is rising, placing significant strain on healthcare systems worldwide. Although definitive therapies like surgery and radiation are often effective, prostate cancer can recur and progress to castration-resistant prostate cancer in some cases.

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In response to the increasing significance of artificial intelligence (AI) in healthcare, there has been increased attention - including a Presidential executive order to create an AI Safety Institute - to the potential threats posed by AI. While much attention has been given to the conventional risks AI poses to cybersecurity, and critical infrastructure, here we provide an overview of some unique challenges of AI for the medical community. Above and beyond obvious concerns about vetting algorithms that impact patient care, there are additional subtle yet equally important things to consider: the potential harm AI poses to its own integrity and the broader medical information ecosystem.

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Introduction: Non-castrating therapies are an unmet clinical need for patients with advanced prostate cancer. To maximize quality of life and prioritize cardiovascular health, we investigated SGLT2 inhibitors as a non-castrating therapy in patients with prostate cancer.

Materials And Methods: We conducted a retrospective analysis of patients with either local or biochemically recurrent prostate cancer who initiated therapy with an SGLT2 inhibitor without concurrent androgen deprivation therapy.

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Article Synopsis
  • The importance of germline genetic testing (GGT) for prostate cancer patients has grown, as it helps tailor treatment plans and manage the disease more effectively.
  • GGT is now considered a standard practice not just for prostate cancer, but also for other cancers like breast and ovarian, emphasizing the need for all patients to have equitable access to this testing.
  • Offering comprehensive GGT allows for better decision-making between patients and doctors, aids in detecting potential future cancers, and facilitates testing for family members who may be at risk.
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  • Metastatic prostate cancer (PCa) is challenging to treat because it can develop resistance to therapies.
  • Resistance may result from changes in the cancer cells or their environment, or from the emergence of a resistant subpopulation of cells.
  • This case report provides evidence that a resistant subpopulation of cancer cells, which existed before treatment, can lead to therapy resistance and negatively impact patient survival.
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The phase 3 VISION trial demonstrated that [Lu]Lu-PSMA-617 prolonged progression-free survival and overall survival (OS) in prostate-specific membrane antigen [PSMA]-positive metastatic castration-resistant prostate cancer (mCRPC) patients who progressed on taxane-based chemotherapy and androgen receptor-signaling inhibitors (ARSIs). The U.S.

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[Lu]Lu-PSMA-617 was approved by the U.S. Food and Drug Administration for patients with prostate-specific membrane antigen (PSMA)-positive metastatic castration-resistant prostate cancer (mCRPC).

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Importance: Olaparib is a poly(adenosine diphosphate-ribose) polymerase inhibitor that provides benefit in combination with hormonal therapies in patients with metastatic prostate cancer who harbor homologous recombination repair (HRR) alterations. Its efficacy in the absence of androgen deprivation therapy has not been tested.

Objective: To determine the activity of olaparib monotherapy among patients with high-risk biochemically recurrent (BCR) prostate cancer after radical prostatectomy.

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Importance: Abiraterone acetate and enzalutamide are recommended as preferred treatments for metastatic castration-resistant prostate cancer (mCRPC), but differences in their relative efficacy are unclear due to a lack of head-to-head clinical trials. Clear guidance is needed for making informed mCRPC therapeutic choices.

Objective: To compare clinical outcomes in patients with mCRPC treated with abiraterone acetate or enzalutamide.

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Purpose: Deleterious germline/somatic homologous recombination repair mutations (HRRm) are present in ∼25% of patients with metastatic castration-resistant prostate cancer (mCRPC). Preclinically, poly(ADP-ribose) polymerase (PARP) inhibition demonstrated synergism with androgen receptor pathway (ARP)-targeted therapy. This trial evaluated the efficacy of ARP inhibitor versus PARP inhibitor versus their combination as first-line therapy in patients with mCRPC with HRRms.

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Article Synopsis
  • High-dose intravenous vitamin C (HDIVC) was tested alongside docetaxel in a clinical trial for patients with advanced prostate cancer, showing no significant benefit compared to docetaxel alone.
  • The trial involved 47 participants and measured effectiveness through PSA response rates, overall survival, and quality of life, with similar outcomes in both the HDIVC and placebo groups.
  • The study was halted early due to no evidence that HDIVC improved cancer treatment results, suggesting it shouldn’t be routinely used for metastatic castration-resistant prostate cancer.
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Unlabelled: Sipuleucel-T is an autologous cellular immunotherapy that targets prostatic acid phosphatase (PAP) and is available for treatment of men with asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer (mCRPC). In this single-arm, two-cohort, multicenter clinical study, potential racial differences in immune responses to sipuleucel-T in men with mCRPC were explored. Patients' blood samples were obtained to assess serum cytokines, humoral responses, and cellular immunity markers before and after treatment.

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Background: Poly ADP-ribose polymerase (PARP) inhibitors are approved for the treatment of some men with advanced prostate cancer. Rare but serious side effects include myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). The impact of PARP inhibitors on clonal hematopoiesis (CH), a potential precursor lesion associated with MDS and AML, is incompletely understood in prostate cancer.

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Article Synopsis
  • The study investigates how changes in prostate-specific antigen (PSA) levels at 3 and 7 months of androgen deprivation therapy (ADT) relate to overall survival in patients with metastatic hormone-sensitive prostate cancer (mHSPC).
  • Results show that a complete response (CR) in PSA at both 3 and 7 months significantly correlates with improved overall survival compared to no response, with specific statistical measures supporting this association.
  • The findings suggest that monitoring PSA levels can help identify patients at higher risk of death, aiding in treatment decisions and the design of future clinical trials.
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Among the known nuclear exportins, CRM1 is the most studied prototype. Dysregulation of CRM1 occurs in many cancers, hence, understanding the role of CRM1 in cancer can help in developing synergistic therapeutics. The study investigates how CRM1 affects prostate cancer growth and survival.

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Purpose: Biallelic germline pathogenic variants of the base excision repair (BER) pathway gene predispose to colorectal cancer (CRC) and other cancers. The possible association of heterozygous variants with broader cancer susceptibility remains uncertain. This study investigated the prevalence and consequences of pathogenic variants and loss of heterozygosity (LOH) in a large pan-cancer analysis.

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Therapeutic options for advanced prostate cancer have vastly expanded over the last decade and will continue to expand in the future. Drugs targeting the androgen receptor (AR) signaling pathway, i.e.

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Background: Germline testing is important in prostate cancer and evaluation can be complex.

Methods: We instituted a monthly multi-disciplinary virtual genetics tumor board (7/2021-3/2022). Participants and panelists were surveyed on usefulness and acceptability.

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Cyclic high-dose testosterone administration, known as bipolar androgen therapy (BAT), is a treatment strategy for patients with metastatic castration-resistant prostate cancer (mCRPC). Here, we report the results of a multicenter, single arm Phase 2 study (NCT03554317) enrolling 45 patients with heavily pretreated mCRPC who received BAT (testosterone cypionate, 400 mg intramuscularly every 28 days) with the addition of nivolumab (480 mg intravenously every 28 days) following three cycles of BAT monotherapy. The primary endpoint of a confirmed PSA response rate was met and estimated at 40% (N = 18/45, 95% CI: 25.

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Article Synopsis
  • Phytonutrient intake, particularly soy isoflavones, may significantly reduce the risk of breast cancer recurrence and mortality, especially in postmenopausal and estrogen receptor-positive survivors, with optimal doses identified between 20 to 60 mg/day.
  • A review of 32 studies found that enterolactone levels measured before and shortly after diagnosis are inversely associated with cancer-specific and all-cause mortality.
  • Green tea consumption before diagnosis showed a notable 44% reduced risk of recurrence for early-stage breast cancer, while no protective benefits were observed from cruciferous vegetables.
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Purpose: Novel approaches are needed to ensure all patients with cancer have access to quality genetic education before genetic testing to enable informed treatment decisions. The purpose of this study was to test the use of an artificial intelligence (AI) intervention for the delivery of genetic education by non-genetic providers to patients with cancer undergoing active treatment.

Methods: A conversational AI-based application was developed on the HealthFAX platform to provide tailored genetic education to patients with cancer and tested at Johns Hopkins Hospital between April 2021 and Feb 2022.

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Veterans are at an increased risk for prostate cancer, a disease with extraordinary clinical and molecular heterogeneity, compared with the general population. However, little is known about the underlying molecular heterogeneity within the veteran population and its impact on patient management and treatment. Using clinical and targeted tumor sequencing data from the National Veterans Affairs health system, we conducted a retrospective cohort study on 45 patients with advanced prostate cancer in the Veterans Precision Oncology Data Commons (VPODC), most of whom were metastatic castration-resistant.

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Background: Recently approved treatments and updates to genetic testing recommendations for prostate cancer have created a need for correlated analyses of patient outcomes data via germline genetic mutation status. Genetic registries address these gaps by identifying candidates for recently approved targeted treatments, expanding clinical trial data examining specific gene mutations, and understanding effects of targeted treatments in the real-world setting.

Methods: The PROMISE Registry is a 20-year (5-year recruitment, 15-year follow-up), US-wide, prospective genetic registry for prostate cancer patients.

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Purpose: To provide evidence-based recommendations to health care providers on integrative approaches to managing anxiety and depression symptoms in adults living with cancer.

Methods: The Society for Integrative Oncology and ASCO convened an expert panel of integrative oncology, medical oncology, radiation oncology, surgical oncology, palliative oncology, social sciences, mind-body medicine, nursing, methodology, and patient advocacy representatives. The literature search included systematic reviews, meta-analyses, and randomized controlled trials published from 1990 through 2023.

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