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  1. Fulltext A case of remarkable response to atezolizumab in ALK-translocated metastatic lung adenocarcinoma
    Von CE, Fuang HG
    Respir Med Case Rep, 2021;34:101478.
    PMID: 34336591 DOI: 10.1016/j.rmcr.2021.101478
    The development of resistance to tyrosine kinase inhibitors (TKIs) in metastatic non-small cell lung cancer (NSCLC) with oncogenic driver mutations highlights the challenge in improving the survival of these patients. The standard of care for ALK-rearranged advanced NSCLC refractory to various generations of ALK TKIs falls back to the use of chemotherapy and the prognosis remains poor. We report the case of a 41-year-old lady with an ALK-translocated metastatic lung adenocarcinoma, who demonstrated good response to an immune checkpoint inhibitor, atezolizumab in combination with bevacizumab and chemotherapy (pemetrexed and carboplatin), following disease progression on three generations of ALK TKIs. Six months into treatment, she continues to show improvement in her health-related quality of life and is tolerating treatment well. Our case suggests that this treatment regimen is a potential treatment option for TKI-refractory driver-mutated NSCLC.
  2. Symptom Prevalence and Related Distress in Cancer Patients Undergoing Chemotherapy
    Thiagarajan M, Chan CM, Fuang HG, Beng TS, Atiliyana MA, Yahaya NA
    Asian Pac J Cancer Prev, 2016;17(1):171-6.
    PMID: 26838205
    BACKGROUND: Much has been done to examine the psychological impact of cancer treatment, but it remains unclear to what extent anxiety and depression is related to symptom prevalence. The present study concerned the characteristics and frequency of distress as related to symptom prevalence in cancer patients undergoing chemotherapy in Malaysia.

    MATERIALS AND METHODS: Participants were 303 consecutive adult cancer patients undergoing chemotherapy in an academic medical center. The short form Memorial Symptom Assessment Scale (MSAS-SF), which covers three domains of symptoms (global distress, physical- and psychological symptoms) was used to cross-sectionally measure symptom frequency and associated distress via self-reporting. One-way ANOVA and t-tests were used to test mean differences among MSAS-SF subscale scores.

    RESULTS: Complete data were available for 303 patients. The mean number of symptoms was 14.5. The five most prevalent were fatigue, dry mouth, hair loss, drowsiness and lack of appetite. Overall, symptom burden and frequency were higher than in other published MSAS-SF studies. Higher symptom frequency was also found to be significantly related to greater distress in cancer patients undergoing chemotherapy.

    CONCLUSIONS: Patients undergoing chemotherapy suffer from multiple physical and psychological symptoms. Better symptom control or palliative care is needed. Greater frequency of reported symptoms may also indicate a subconscious bid by patients for care and reassurance - thus tailored intervention to manage distress should be offered.

  3. Fulltext A new formulation of Gamma Delta Tocotrienol has superior bioavailability compared to existing Tocotrienol-Rich Fraction in healthy human subjects
    Meganathan P, Jabir RS, Fuang HG, Bhoo-Pathy N, Choudhury RB, Taib NA, et al.
    Sci Rep, 2015;5:13550.
    PMID: 26323969 DOI: 10.1038/srep13550
    Gamma and delta tocotrienols are isomers of Vitamin E with established potency in pre-clinical anti-cancer research. This single-dose, randomized, crossover study aimed to compare the safety and bioavailability of a new formulation of Gamma Delta Tocotrienol (GDT) in comparison with the existing Tocotrienol-rich Fraction (TRF) in terms of gamma and delta isomers in healthy volunteers. Subjects were given either two 300 mg GDT (450 mg γ-T3 and 150 mg δ-T3) capsules or four 200 mg TRF (451.2 mg γ-T3 &102.72 mg δ-T3) capsules and blood samples were taken at several time points over 24 hours. Plasma tocotrienol concentrations were determined using HPLC method. The 90% CI for gamma and delta tocotrienols for the ratio of log-transformation of GDT/TRF for Cmax and AUC0-∞ (values were anti-logged and expressed as a percentage) were beyond the bioequivalence limits (106.21-195.46, 154.11-195.93 and 52.35-99.66, 74.82-89.44 respectively). The Wilcoxon Signed Rank Test for Tmax did not show any significant difference between GDT and TRF for both isomers (p > 0.05). No adverse events were reported during the entire period of study. GDT was found not bioequivalent to TRF, in terms of AUC and Cmax. Gamma tocotrienol in GDT showed superior bioavailability whilst delta tocotrienol showed less bioavailability compared to TRF.

    Study site: Clinical examination ward, Universiti Malaya Medical Centre UMMC, Malaysia.
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