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1.
PeerJ ; 12: e16647, 2024.
Article En | MEDLINE | ID: mdl-38188178

Shark fins are a delicacy consumed throughout Southeast Asia. The life history characteristics of sharks and the challenges associated with regulating fisheries and the fin trade make sharks particularly susceptible to overfishing. Here, we used DNA barcoding techniques to investigate the composition of the shark fin trade in Singapore, a globally significant trade hub. We collected 505 shark fin samples from 25 different local seafood and Traditional Chinese Medicine shops. From this, we identified 27 species of shark, three species are listed as Critically Endangered, four as Endangered and ten as Vulnerable by the International Union for Conservation of Nature (IUCN). Six species are listed on CITES Appendix II, meaning that trade must be controlled in order to avoid utilization incompatible with their survival. All dried fins collected in this study were sold under the generic term "shark fin"; this vague labelling prevents accurate monitoring of the species involved in the trade, the effective implementation of policy and conservation strategy, and could unwittingly expose consumers to unsafe concentrations of toxic metals. The top five most frequently encountered species in this study are Rhizoprionodon acutus, Carcharhinus falciformis, Galeorhinus galeus, Sphyrna lewini and Sphyrna zygaena. Accurate labelling that indicates the species of shark that a fin came from, along with details of where it was caught, allows consumers to make an informed choice on the products they are consuming. Doing this could facilitate the avoidance of species that are endangered, and similarly the consumer can choose not to purchase species that are documented to contain elevated concentrations of toxic metals.


Endangered Species , Sharks , Animals , Sharks/genetics , Conservation of Natural Resources , DNA Barcoding, Taxonomic , Fisheries , Seafood , DNA , Heavy Metal Poisoning
2.
Target Oncol ; 18(5): 727-734, 2023 09.
Article En | MEDLINE | ID: mdl-37728835

BACKGROUND: Despite recent approvals of lifesaving treatments for chronic lymphocytic leukemia (CLL), real-world data on the tolerability of the Bruton tyrosine kinase inhibitor ibrutinib for CLL treatment are lacking, especially in Black patients. OBJECTIVE: To expand upon a previously reported retrospective chart review of ibrutinib-treated patients with CLL to increase the number of sites and the enrollment period in first-line (1L) and relapsed/refractory (R/R) settings with a subanalysis based on ethnicity. PATIENTS AND METHODS: Adults with CLL who initiated ibrutinib treatment from five centers were followed for ≥ 6 months. RESULTS: We identified 482 patients with CLL [405 White (153 1L, 252 R/R), 37 Black (17 1L, 20 R/R), 40 other/unidentified]. At baseline, 58.5% of all patients (68.8% of Black patients) had hypertension. At a median follow-up of 28.2 months, 31.1% of patients overall discontinued ibrutinib, 16.2% due to adverse events (12.2% 1L, 18.8% R/R). Overall, 46.0% of patients experienced ≥ 1 dose hold (40.2% 1L, 49.8% R/R), and 28.8% of patients experienced ≥ 1 dose reduction (24.9% 1L, 31.4% R/R). Among Black patients, ibrutinib was discontinued in 24.3% of patients (17.6% 1L, 30.0% R/R), 8.1% due to disease progression and 5.4% due to adverse events; 40.5% of patients experienced ≥ 1 dose hold (35.3% 1L, 45.0% R/R), and 32.4% of patients experienced ≥ 1 dose reduction (23.5% 1L, 40.0% R/R). CONCLUSIONS: Toxicity and disease progression were the most common reasons for ibrutinib discontinuations in the overall population and among Black patients, respectively. Encouraging research participation of underrepresented patient groups will help clinicians better understand treatment outcomes.


Ibrutinib, a Bruton tyrosine kinase inhibitor, is an approved oral targeted therapy for the treatment of chronic lymphocytic leukemia (CLL). Patients treated with ibrutinib can experience side effects (referred to as adverse events) and may need to reduce the drug dose (referred to as dose reductions) or stop treatment (referred to as discontinuations) for a variety of reasons. A previous study showed that patients who were treated with ibrutinib experienced frequent dose reductions and discontinuations. This study described dose reductions and discontinuations in a larger patient population treated with ibrutinib and also described outcomes in Black patients. Patients with CLL treated with ibrutinib were identified from five medical centers and were followed for a minimum of 6 months. Patients experienced frequent dose reductions and discontinuations in routine clinical practice. The most common cause of discontinuations was adverse events in the overall patient population and disease progression in the Black patient population. Black patients treated with ibrutinib had similar rates of dose reductions and discontinuations as the overall patient population. Rates of dose reductions and discontinuations for patients with CLL treated with ibrutinib were higher in this real-world study than in clinical trials.


Leukemia, Lymphocytic, Chronic, B-Cell , Adult , Humans , Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy , Race Factors , Retrospective Studies , Disease Progression
3.
Future Oncol ; 17(35): 4959-4969, 2021 Dec.
Article En | MEDLINE | ID: mdl-34783255

Aim: A retrospective chart review of ibrutinib-treated patients with chronic lymphocytic leukemia (CLL) was conducted. Patients & methods: Adults with CLL who initiated ibrutinib were followed for ≥6 months (n = 180). Results: Twenty-five percent of first-line ibrutinib patients experienced ≥1 dose reduction, mainly due to adverse events (AEs; 79%). Treatment discontinuations and dose holds occurred in 20 and 34% of patients, respectively, most commonly due to AEs (73 and 74%). Approximately one-quarter of relapsed/refractory ibrutinib patients experienced ≥1 dose reduction, mainly due to AEs (88%). Treatment discontinuation and dose holds occurred in 40% of patients (58 and 76% due to AEs, respectively). Conclusion: Dose reductions, holds and discontinuations were frequent in patients with CLL receiving ibrutinib in routine clinical practice.


Lay abstract Chronic lymphocytic leukemia (CLL) is a cancer that develops from a type of white blood cells called 'B cells.' Ibrutinib is a targeted therapy that inhibits the activity of a protein called Bruton's tyrosine kinase, which plays a key role in CLL. Patients receiving ibrutinib treatment can experience side effects ('adverse events'). In addition, patients may need to reduce their drug dose ('dose reductions') or stop treatment ('discontinuations') for a variety of reasons. We reviewed patients' charts to describe dose reductions and discontinuations in ibrutinib-treated patients with CLL. Our results indicate that dose reductions and discontinuations were frequent in patients with CLL receiving ibrutinib in routine clinical practice, and that the most common reason was adverse events.


Adenine/analogs & derivatives , Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy , Piperidines/administration & dosage , Protein Kinase Inhibitors/administration & dosage , Adenine/administration & dosage , Adenine/adverse effects , Adult , Aged , Aged, 80 and over , Clinical Decision-Making , Disease Management , Drug Resistance, Neoplasm , Drug Tapering , Female , Humans , Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis , Leukemia, Lymphocytic, Chronic, B-Cell/etiology , Male , Middle Aged , Molecular Targeted Therapy/methods , Piperidines/adverse effects , Protein Kinase Inhibitors/adverse effects , Recurrence , Retrospective Studies , Withholding Treatment
4.
J Clin Oncol ; 38(6): 633-644, 2020 02 20.
Article En | MEDLINE | ID: mdl-31815576

PURPOSE: To provide standards for medically integrated dispensing of oral anticancer drugs and supportive care medications. METHODS: An Expert Panel was formed, and a systematic review of the literature on patient-centered best practices for the delivery of oral anticancer and supportive care drugs was performed to April 2019 using PubMed and Google Scholar. Available patient-centered standards, including one previously developed by the National Community Oncology Dispensing Association (NCODA), were considered for endorsement. Public comments were solicited and considered in preparation of the final manuscript. RESULTS: A high-quality systematic review that was current to May 2016 was adopted into the evidence base. Five additional primary studies of multifaceted interventions met the inclusion criteria. These studies generally included a multicomponent intervention, often led by an oncology pharmacist, and also included patient education and regular follow-up and monitoring. These interventions resulted in significant improvements to patient quality and safety and demonstrated improvements in adherence and other patient outcomes. CONCLUSION: The findings of the systematic review were consistent with the NCODA patient-centered standards for patient relationships and education, adherence, safety, collection of data, documentation, and other areas. NCODA standards were adopted and used as basis for these American Society of Clinical Oncology/NCODA standards. Additional information is available at www.asco.org/mid-standards.


Antineoplastic Agents , Medical Oncology/standards , Patient-Centered Care/standards , Practice Patterns, Physicians'/standards , Prescription Drugs/standards , Humans
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