Publications by authors named "Zin Myint"

Background: Recently, a plethora of novel systemic agents have been incorporated into the therapeutic armamentarium of advanced urothelial carcinoma (aUC). The antibody-drug conjugate (ADC), enfortumab vedotin (EV), has demonstrated relevant clinical benefit in patients with aUC refractory to platinum and immune-checkpoint inhibitor (ICI) therapy. Our study provides a retrospective, international, real-world analysis comparing the effectiveness of EV to chemotherapy in this setting.

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Androgen-indifferent prostate cancer (AIPC) is increasingly common and particularly lethal. Data describing these tumors are sparse, and AIPC remains a poorly understood malignancy. Utilizing the Oncology Research Information Exchange Network (ORIEN) database, we enriched for tumors with features of AIPC using previously described characteristics.

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Introduction: Alterations in homologous recombination repair (HRR) genes occur in 20%-30% of men with metastatic castration-resistant prostate cancer (mCRPC) which may increase sensitivity to platinum chemotherapy. Specifically, exceptional responses to platinum chemotherapy have been reported among patients with BRCA mutations. This study aimed to evaluate the efficacy of platinum chemotherapy in patients with mCRPC with and without HRR.

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Background And Objective: Apalutamide (APA) is a treatment for metastatic castration-sensitive prostate cancer (mCSPC). In the ARON-3 study we investigated real-world experiences with APA treatment for mCSPC.

Methods: We retrospectively assessed real-world clinical outcomes for patients with mCSPC treated with APA in the ARON-3 study.

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Article Synopsis
  • A study explored the relationship between body mass index (BMI) and overall survival (OS) in patients with metastatic hormone-sensitive prostate cancer (mHSPC), finding that higher BMI may lead to better survival outcomes.
  • Out of 1,279 patients analyzed from the SWOG-1216 trial, survival rates increased with higher BMI categories, with the median OS being longest in the obese group at 6.8 years.
  • The analysis suggests that these findings, indicating a lower risk of death among patients with higher BMI, need further validation in additional clinical trials.
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  • Brain metastatic carcinoma from prostate cancer is uncommon, but identification through imaging like [Ga]PSMA PET/CT can be complicated by other brain tumors that also show uptake.
  • A 70-year-old male with high-risk prostate cancer had a solitary brain lesion confirmed as metastatic adenocarcinoma after surgical resection, followed by targeted Gamma Knife radiosurgery and androgen deprivation therapy.
  • The case highlights the importance of confirming the diagnosis histologically and shows that with appropriate treatment, significant control of the cancer can be achieved, even in rare brain metastases.
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  • - Enfortumab vedotin (EV) is effective for patients with advanced urothelial carcinoma who have previously received platinum chemotherapy and immune therapy, despite lacking research on those treated with avelumab maintenance.
  • - A study of 182 patients showed a median overall survival of 12.7 months and a progression-free survival of 7.9 months, with 39% achieving a positive response to EV after avelumab treatment.
  • - The study confirms EV's effectiveness, suggesting it can be a viable option for patients previously treated with avelumab, with manageable side effects like grade ≥ 3 neuropathy and skin rash occurring in a minority of cases.
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  • Advances in immuno-oncology have improved treatment for renal cell carcinoma, but patients with "primary refractory" disease have poor outcomes; our study found a 19% prevalence of this group among 1,709 metastatic clear cell patients across 72 centers in 22 countries.
  • The highest primary refractory rate was 27% with nivolumab/ipilimumab, while pembrolizumab/lenvatinib had the lowest at 10%; those classified as primary refractory only had a median survival of 7.6 months compared to 55.7 months for non-primary refractory patients.
  • Significant predictors of survival for primary refractory patients included factors like prior nephrectomy and presence of bone/brain metastases, highlighting the complex
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The addition of metastasis-directed radiotherapy (MDRT) to immunotherapy in patients with advanced urothelial carcinoma (aUC) has shown promising results. We report the real-world data from the ARON-2 study (NCT05290038) on the impact of conventional (CRT) or stereotactic body radiotherapy (SBRT) on the outcome of aUC patients receiving pembrolizumab after platinum-based-chemotherapy. Medical records of 837 patients were reviewed from 60 institutions in 20 countries.

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  • Bone pain at diagnosis significantly impacts overall survival in patients with metastatic hormone-sensitive prostate cancer (MHSPC), with limited existing data on this relationship.
  • The analysis focused on data from a phase 3 clinical trial, SWOG-1216, involving patients diagnosed with MHSPC, comparing outcomes based on the presence or absence of baseline bone pain.
  • Out of 1279 participants, 23.5% reported baseline bone pain, revealing a need for further study on how pain influences survival outcomes and treatment effectiveness.
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Upper tract urothelial carcinoma (UTUC) accounts for the 5-10% of all urothelial carcinomas (UCs). In this analysis, we reported the real-world data from the ARON-2 study (NCT05290038) on the efficacy of pembrolizumab in patients with UTUC who recurred or progressed after platinum-based chemotherapy. Medical records of patients with metastatic UTUC treated with pembrolizumab as second-line therapy were reviewed from 34 institutions in 14 countries.

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  • There is ongoing debate about whether sex influences the effectiveness of immune checkpoint inhibitors in cancer treatment, specifically for metastatic renal cell carcinoma (mRCC).
  • A study involving 1,827 mRCC patients from multiple countries found that overall median overall survival (OS) was similar for both sexes, but males performed better in specific subgroups, particularly younger patients and those with certain cancer histologies.
  • Interestingly, female sex was identified as a negative prognostic factor in patients with sarcomatoid differentiation, suggesting that despite women having stronger immune responses, their outcomes in these cases were worse than those of men.
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Background: Patients with advanced chronic kidney disease (ACKD) are at an increased risk of developing renal cell carcinoma (RCC), but molecular alterations in RCC specimens arising from ACKD and overall survival (OS) in affected patients are not well defined.

Patients And Methods: Using the Oncology Research Information Exchange Network (ORIEN) Total Cancer Care protocol, 296 consented adult patients with RCC and somatic tumor whole exome sequencing were included. Patients with ACKD were defined as those with serum creatinine ≥1.

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The genetic mechanisms of reproductive isolation have been widely investigated within Asian cultivated rice (); however, relevant genes between diverged species have been in sighted rather less. Herein, a gene showing selfish behavior was discovered in hybrids between the distantly related rice species and . The selfish allele in the locus impaired male fertility, discriminately eliminating pollens containing the allele from in heterozygotes (/).

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Background: About 20% of patients with renal cell carcinoma present with non-clear cell histology (nccRCC), encompassing various histological types. While surgery remains pivotal for localized-stage nccRCC, the role of cytoreductive nephrectomy (CN) in metastatic nccRCC is contentious. Limited data exist on the role of CN in metastatic nccRCC under current standard of care.

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Article Synopsis
  • - The ARON-2 study investigated the real-world effectiveness of pembrolizumab, an immune checkpoint inhibitor, in patients with advanced urothelial carcinoma who had progression after platinum-based chemotherapy, utilizing data from 836 patients across 88 institutions in 23 countries.
  • - Results showed median overall survival (OS) of 10.5 months and overall response rate (ORR) of 31%; those who progressed after initial chemotherapy (cohort A) had lower OS (9.1 months) compared to those who recurred within a year post-chemotherapy (cohort B) with 14.6 months OS.
  • - Multivariate analysis identified several prognostic factors affecting OS and progression-free survival (PFS),
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Background And Objective: Papillary renal cell carcinoma (pRCC) is the most frequent histological subtype of non-clear cell RCC (nccRCC). Owing to the heterogeneity of nccRCC, patients are often excluded from large phase 3 trials focused on clear cell RCC, so treatment options for nccRCC remain limited. Our aim was to investigate the efficacy of first-line treatment with tyrosine kinase inhibitors (TKIs) or immuno-oncology (IO)-based combinations in patients with pRCC.

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There are very few therapeutic options to treat patients with locally advanced or metastatic Urothelial Cancer (UC). Enfortumab vedotin (EV) was recently approved by the FDA and has become a new therapeutic option for patients previously managed with conventional treatments. Despite its efficacy, EV carries the potential for infrequent yet severe adverse effects.

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Background: Systemic treatment with immune combinations is the gold standard for metastatic renal cell carcinoma (mRCC) worldwide. The systemic immune-inflammation index (SII) is a prognostic marker for several types of malignant neoplasms, including mRCC, in the era of tyrosine kinase inhibitor (TKI) treatment. Data regarding the prognostic value of the SII in patients with mRCC treated with immunotherapy are scarce and controversial.

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Trichorhinophalangeal syndrome type 1 (TRPS1) has been reported to be a sensitive and specific immunohistochemical (IHC) marker for breast carcinomas, especially when determining primary site of origin. However, there is limited data on TRPS1 expression in prostate and bladder cancers. A two-phase study was performed with 1) an exploratory cohort analyzing TRPS1 gene alterations in prostate, bladder, and breast carcinoma and TPRS1 mRNA expression data in prostate and bladder carcinoma; and 2) TRPS1 and GATA3 IHC in a confirmatory cohort in prostate, bladder, and breast carcinoma samples.

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Tumor thrombus (TT) is a complication of renal cell carcinoma (RCC) for which favorable medical management remains undefined. While radical nephrectomy has been shown to increase overall survival in RCC patients, surgical interventions such as cardiopulmonary bypass (CPB) and deep hypothermic circulatory arrest (DHCA) utilized to perform TT resection carry high mortality rates. While it has been documented that RCC with TT is associated with venous thromboembolism (VTE) development, anticoagulation use in these patients remains controversial in clinical practice.

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Primary mediastinal seminomas are exceedingly rare tumors, often localized to the anterior mediastinum. They may present with numerous complications, including superior vena cava syndrome, chylothorax, and pericardial effusions. Less commonly, they may present with paraneoplastic encephalitis.

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Background: Concomitant medications may potentially affect the outcome of cancer patients. In this sub-analysis of the ARON-2 real-world study (NCT05290038), we aimed to assess the impact of concomitant use of proton pump inhibitors (PPI), statins, or metformin on outcome of patients with metastatic urothelial cancer (mUC) receiving second-line pembrolizumab.

Methods: We collected data from the hospital medical records of patients with mUC treated with pembrolizumab as second-line therapy at 87 institutions from 22 countries.

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Background: The upfront treatment of metastatic renal cell carcinoma (mRCC) has been revolutionized by the introduction of immune-based combinations. The role of cytoreductive nephrectomy (CN) in these patients is still debated. The ARON-1 study (NCT05287464) was designed to globally analyze real-world data of mRCC patients receiving first-line immuno-oncology combinations.

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Background: Renal c carcinoma (RCC) is one of the most common urinary cancers worldwide, with a predicted increase in incidence in the coming years. Immunotherapy, as a single agent, in doublets, or in combination with anti-vascular endothelial growth factor receptor tyrosine kinase inhibitors (TKIs), has rapidly become a cornerstone of the RCC therapeutic scenario, but no head-to-head comparisons have been made. In this setting, real-world evidence emerges as a cornerstone to guide clinical decisions.

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