Displaying publications 121 - 140 of 160 in total

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  1. Navaratnam V, Ramanathan S, Wahab MS, Siew Hua G, Mansor SM, Kiechel JR, et al.
    Eur J Clin Pharmacol, 2009 Aug;65(8):809-21.
    PMID: 19404632 DOI: 10.1007/s00228-009-0656-1
    There is limited pharmacokinetic data available for the combination artesunate + amodiaquine, which is used widely to treat uncomplicated malaria. This study examines the bioavailability and tolerability of a fixed (200 mg artesunate + 540 mg amodiaquine) and loose (200 mg + 612 mg) combination with a 2x2 cross-over design in 24 healthy volunteers.
    Matched MeSH terms: Drug Combinations
  2. Loh LC, Lim BK, Raman S, Vijayasingham P, Mohd Yusuf S
    Med J Malaysia, 2008 Aug;63(3):188-92.
    PMID: 19248687
    Budesonide/Formoterol (Symbicort) combination therapy as both maintenance and reliever treatment (SMART) is a novel approach in asthma management. We examined its 'real-life effectiveness' in treating Malaysian patients with moderate-to-severe asthma in whom despite on combined inhaled corticosteroids and long-acting beta2-agonist, were still inadequately controlled. In a retrospective study, 22 eligible adult patients on SMART [mean (range) age: 49 (36-65) years; FEV1: 41 (21-74)% predicted] were identified from medical records of an urban-based university hospital chest clinic, and their clinical outcomes studied at three months. Another 16 patients [50 (14-66) years; 48 (20-91)% predicted] of similar severity and treatment (i.e. Symbicort maintenance treatment plus short-acting beta2-agonist as reliever), but not on SMART, were used as comparator over the same assessment period. In addition, the patients were separately interviewed with standard questionnaire on their satisfaction and compliance to the SMART approach. In SMART group, rescue treatment requirement (p<0.001) and FEV1 [median difference = 2.5%, p=0.015; mean difference: 90 ml, p=0.013] showed significant improvement while in comparator, there was significant improvement only in the requirement for rescue treatment (p=0.023). Hospital admission rates were significantly reduced in SMART group compared to the other (p=0.039), but not in emergency treatment. Five patients asked to discontinue SMART while all others were satisfied, compliant and perceived improvement of their asthma with SMART. The maximum daily doses of inhaled budesonide and formoterol were 1400 microg and 31.5 microg respectively. Our preliminary findings suggest that SMART approach can be attempted as an effective and safe treatment option for patients with inadequately controlled moderate-to-severe asthma in Malaysian setting.
    Study site: Chest clinic, Hospital Tuanku Jaafar, Seremban, Negeri Sembilan, Malaysia
    Matched MeSH terms: Drug Combinations
  3. Ahmad N, Zanariah Y, Balan S
    Med J Malaysia, 2008 Dec;63(5):431-3.
    PMID: 19803312
    We studied the effect of fentanyl pretreatment on alleviating pain during the injection of Propofol-Lipuro. One hundred and seventy patients were randomly allocated to receive either 100 mcg of intravenous fentanyl or normal saline (placebo) followed by intravenous Propofol-Lipuro premixed with 20 mg lignocaine. The incidence of injection pain was 32% and 13% in the placebo and fentanyl groups, respectively. We found a statistically significant reduction in incidence of injection pain in the fentanyl group when compared with the placebo group (p<0.003). The number needed to treat was 6 (3.2< 95% CI <15.1). In conclusion, fentanyl pretreatment is effective in alleviating pain during injection of Propofol-Lipuro.
    Matched MeSH terms: Drug Combinations
  4. Ruzaimi MY, Shahril Y, Masbah O, Salasawati H
    Med J Malaysia, 2006 Feb;61 Suppl A:21-6.
    PMID: 17042224
    Deep surgical site infection is a devastating consequence of total joint arthroplasty. The use of antibiotic impregnated bone cement is a well-accepted adjunct for treatment of established infection and prevention of deep orthopaedic infection. It allows local delivery of the antibiotic at the cement-bone interface and sustained release of antibiotic provides adequate antibiotic coverage after the wound closure. Preclinical testing, randomised and clinical trials indicate that the use of antibiotic-impregnated bone cement is a potentially effective strategy in reducing the risk of deep surgical site infection following total joint arthroplasty. The purpose of this study was to assess antibacterial activity of erythromycin and colistin impregnated bone cement against strains of organisms' representative of orthopaedic infections including Gram-positive and Gram-negative aerobic organisms: Staphylococcus aureus, coagulase-negative Staphylococci, Enterococcus sp., Proteus sp., Klebsiella sp., Pseudomonas sp., and Escherichia coli. Pre-blended Simplex P bone cement with the addition of erythromycin and colistin (Howemedica Inc) was mixed thoroughly with 20ml liquid under sterile conditions to produce uniform cylindrical discs with a diameter of 14mm and thickness of 2mm. 24-48 hour agar cultures of Staphylococcus aureus, coagulase-negative Staphylococci, Enterococcus sp.,Proteus sp., Klebsiella sp.,Pseudomonas sp., and Escherichia coli were used for the agar diffusion tests. The agar plates were streaked for confluent growth followed by application of erythromycin and colistin impregnated bone cement disc to each agar plate. The plates were incubated at 30 degrees C and examined at 24, 48, 72 hours, and four and five days after the preparation of the impregnated cement. The susceptibility of Staphylococcus aureus to the control discs was most clearly demonstrated showing a distinct zone of inhibition. The zone observed around coagulase-negative Staphylococci, Klebsiella sp., Pseudomonas sp., and Escherichia coli were also significant. However, there was no zone of inhibition or signs of antibacterial activity at the cemented surface were detected around discs with Enterococcus sp. and Proteus sp. The results showed that Simplex P bone cement with the addition of erythromycin and colistin was effective against most of the broad spectrum organisms encountered during total joint arthroplasty. The activity of Simplex P bone cement impregnated with erythromycin and colistin is mainly during the first 72 hours.
    Matched MeSH terms: Drug Combinations
  5. Yusof W, Hua GS
    Toxicol. Mech. Methods, 2012 Apr;22(3):184-92.
    PMID: 22003869 DOI: 10.3109/15376516.2011.623331
    Artesunate (AS) and amodiaquine (AQ) are two prodrugs widely used as antimalarial agents and are metabolized by the CYP P450 2A6 (CYP 2A6) and CYP P450 2C8 (CYP 2C8) enzymes, respectively.
    Matched MeSH terms: Drug Combinations
  6. Lim MN, Leong CF, Cheong SK, Seow HF
    Malays J Pathol, 2003 Dec;25(2):107-12.
    PMID: 16196366
    Dendritic cells (DC) are efficient and potent antigen-presenting cells. Pilot clinical trials indicated that DC loaded with tumour antigen could induce tumour-specific immune responses in various cancers including B-cell lymphoma, melanoma and prostate cancer. Owing to extensively low number of DC in the blood circulation, a variety of sources have been used to generate DC including monocytes, CD34+ stem cells and even with leukaemic blast cells. We demonstrate here a simple method to generate DC from acute myeloid leukaemia (AML) cells and monocytes from healthy donor or remission samples. AML cells or monocytes were cultured in RPMI 1640 media supplemented with foetal bovine serum or autologous serum where possible and different combinations of cytokines GM-CSF, IL-4 and TNF-alpha. The generated DC were evaluated for their morphology by phase contrast microscopy and May Grunwald Giemsa staining. Viability of cells was determined by trypan blue dye exclusion. Percentage of yields and immunophenotypes were carried out by flow cytometry. We found that cultured AML cells and monocytes developed morphological and immuno-phenotypic characteristics of DC. Monocytes are better than AML blast in generating DC and serve as a ready source for dendritic cell vaccine development.
    Matched MeSH terms: Drug Combinations
  7. Sayyed AH, Omar D, Wright DJ
    Pest Manag Sci, 2004 Aug;60(8):827-32.
    PMID: 15307676
    Resistance to the bacteria-derived insecticides spinosad (Conserve), abamectin (Vertimec), Bacillus thuringiensis var kurstaki (Btk) (Dipel), B thuringiensis var aizawai (Bta) (Xentari), B thuringiensis crystal endotoxins Cry1Ac and Cry1Ca, and to the synthetic insecticide fipronil was estimated in a freshly-collected field population (CH1 strain) of Plutella xylostella (L) from the Cameron Highlands, Malaysia. Laboratory bioassays at G1 indicated significant levels of resistance to spinosad, abamectin, Cry1Ac, Btk, Cry1Ca, fipronil and Bta when compared with a laboratory insecticide-susceptible population. Logit regression analysis of F1 reciprocal crosses indicated that resistance to spinosad in the CH1 population was inherited as a co-dominant trait. At the highest dose of spinosad tested, resistance was close to completely recessive, while at the lowest dose it was incompletely dominant. A direct test of monogenic inheritance based on a back-cross of F1 progeny with CH1 suggested that resistance to spinosad was controlled by a single locus.
    Matched MeSH terms: Drug Combinations
  8. Lai CS, Nair NK, Mansor SM, Olliaro PL, Navaratnam V
    PMID: 17719858
    The combination of two sensitive, selective and reproducible reversed phase liquid chromatographic (RP-HPLC) methods was developed for the determination of artesunate (AS), its active metabolite dihydroartemisinin (DHA) and mefloquine (MQ) in human plasma. Solid phase extraction (SPE) of the plasma samples was carried out on Supelclean LC-18 extraction cartridges. Chromatographic separation of AS, DHA and the internal standard, artemisinin (QHS) was obtained on a Hypersil C4 column with mobile phase consisting of acetonitrile-0.05 M acetic acid adjusted to pH 5.2 with 1.0M NaOH (42:58, v/v) at the flow rate of 1.50 ml/min. The analytes were detected using an electrochemical detector operating in the reductive mode. Chromatography of MQ and the internal standard, chlorpromazine hydrochloride (CPM) was carried out on an Inertsil C8-3 column using methanol-acetonitrile-0.05 M potassium dihydrogen phosphate adjusted to pH 3.9 with 0.5% orthophosphoric acid (50:8:42, v/v/v) at a flow rate of 1.00 ml/min with ultraviolet detection at 284 nm. The mean recoveries of AS and DHA over a concentration range of 30-750 ng/0.5 ml plasma and MQ over a concentration of 75-1500 ng/0.5 ml plasma were above 80% and the accuracy ranged from 91.1 to 103.5%. The within-day coefficients of variation were 1.0-1.4% for AS, 0.4-3.4% for DHA and 0.7-1.5% for MQ. The day-to-day coefficients of variation were 1.3-7.6%, 1.8-7.8% and 2.0-3.4%, respectively. Both the lower limit of quantifications for AS and DHA were at 10 ng/0.5 ml and the lower limit of quantification for MQ was at 25 ng/0.5 ml. The limit of detections were 4 ng/0.5 ml for AS and DHA and 15 ng/0.5 ml for MQ. The method was found to be suitable for use in clinical pharmacological studies.
    Matched MeSH terms: Drug Combinations
  9. Saifullah B, Arulselvan P, El Zowalaty ME, Fakurazi S, Webster TJ, Geilich BM, et al.
    Int J Nanomedicine, 2014;9:4749-62.
    PMID: 25336952 DOI: 10.2147/IJN.S63608
    The primary challenge in finding a treatment for tuberculosis (TB) is patient non-compliance to treatment due to long treatment duration, high dosing frequency, and adverse effects of anti-TB drugs. This study reports on the development of a nanodelivery system that intercalates the anti-TB drug isoniazid into Mg/Al layered double hydroxides (LDHs). Isoniazid was found to be released in a sustained manner from the novel nanodelivery system in humans in simulated phosphate buffer solutions at pH 4.8 and pH 7.4. The nanodelivery formulation was highly biocompatible compared to free isoniazid against human normal lung and 3T3 mouse fibroblast cells. The formulation was active against Mycobacterium tuberculosis and gram-positive bacteria and gram-negative bacteria. Thus results show significant promise for the further study of these nanocomposites for the treatment of TB.
    Matched MeSH terms: Drug Combinations
  10. Singam P, Hong GE, Ho C, Hee TG, Jasman H, Inn FX, et al.
    Aging Male, 2015 Jun;18(2):112-7.
    PMID: 25690022 DOI: 10.3109/13685538.2015.1011614
    The aim of study was to evaluate the influence of ageing, lifestyle, and co morbid illnesses on treatment outcome of nocturia among men with BPH.
    Matched MeSH terms: Drug Combinations
  11. Liew K, Yong PV, Lim YM, Navaratnam V, Ho AS
    Toxicol In Vitro, 2014 Apr;28(3):335-9.
    PMID: 24291160 DOI: 10.1016/j.tiv.2013.11.008
    Metastasis contributes to the escalating mortality rate among cancer patients worldwide. The search for novel and more effective anti-metastatic agent is crucial owing to the lack of anticancer drugs that can successfully combat metastasis. Hence, this study aims to examine the effects of 2-Methoxy-1,4-Naphthoquinone (MNQ) towards the metastasis of MDA-MB-231 cells. In invasion assays, the number of cells permeating across a Matrigel barrier was found to be decreased in a dose-dependent manner upon treatment with MNQ (0-7.5 μM). In wound-healing migration assays, MNQ exhibited dose-dependent inhibition of cell migration in which significant reduction in the zone of closure was observed as compared to untreated controls. Furthermore, the proteolytic activity of a pivotal metastatic mediator, matrix metalloproteinase-9 (MMP-9) was also downregulated by MNQ as determined by gelatin zymography. This study reports for the first time, the ability of MNQ to inhibit the invasion and migration characteristics of a highly metastatic MDA-MB-231 cancer cell line.
    Matched MeSH terms: Drug Combinations
  12. Park SW, Bebakar WM, Hernandez PG, Macura S, Hersløv ML, de la Rosa R
    Diabet Med, 2017 02;34(2):174-179.
    PMID: 26773557 DOI: 10.1111/dme.13069
    AIMS: To compare the efficacy and safety of two titration algorithms for insulin degludec/insulin aspart (IDegAsp) administered once daily with metformin in participants with insulin-naïve Type 2 diabetes mellitus.

    METHODS: This open-label, parallel-group, 26-week, multicentre, treat-to-target trial, randomly allocated participants (1:1) to two titration arms. The Simple algorithm titrated IDegAsp twice weekly based on a single pre-breakfast self-monitored plasma glucose (SMPG) measurement. The Stepwise algorithm titrated IDegAsp once weekly based on the lowest of three consecutive pre-breakfast SMPG measurements. In both groups, IDegAsp once daily was titrated to pre-breakfast plasma glucose values of 4.0-5.0 mmol/l. Primary endpoint was change from baseline in HbA1c (%) after 26 weeks.

    RESULTS: Change in HbA1c at Week 26 was IDegAspSimple -14.6 mmol/mol (-1.3%) (to 52.4 mmol/mol; 6.9%) and IDegAspStepwise -11.9 mmol/mol (-1.1%) (to 54.7 mmol/mol; 7.2%). The estimated between-group treatment difference was -1.97 mmol/mol [95% confidence interval (CI) -4.1, 0.2] (-0.2%, 95% CI -0.4, 0.02), confirming the non-inferiority of IDegAspSimple to IDegAspStepwise (non-inferiority limit of ≤ 0.4%). Mean reduction in fasting plasma glucose and 8-point SMPG profiles were similar between groups. Rates of confirmed hypoglycaemia were lower for IDegAspStepwise [2.1 per patient years of exposure (PYE)] vs. IDegAspSimple (3.3 PYE) (estimated rate ratio IDegAspSimple /IDegAspStepwise 1.8; 95% CI 1.1, 2.9). Nocturnal hypoglycaemia rates were similar between groups. No severe hypoglycaemic events were reported.

    CONCLUSIONS: In participants with insulin-naïve Type 2 diabetes mellitus, the IDegAspSimple titration algorithm improved HbA1c levels as effectively as a Stepwise titration algorithm. Hypoglycaemia rates were lower in the Stepwise arm.

    Matched MeSH terms: Drug Combinations
  13. Safi SZ, Batumalaie K, Mansor M, Chinna K, Mohan S, Karimian H, et al.
    Clinics (Sao Paulo), 2015 Aug;70(8):569-76.
    PMID: 26247670 DOI: 10.6061/clinics/2015(08)07
    The aim of this study was to determine the in vitro effect of glutamine and insulin on apoptosis, mitochondrial membrane potential, cell permeability, and inflammatory cytokines in hyperglycemic umbilical vein endothelial cells.
    Matched MeSH terms: Drug Combinations
  14. Leong CW, Yee KM, Rani TA, Lau KJ, Ahmad S, Amran A, et al.
    Clin Pharmacol Drug Dev, 2024 Aug;13(8):938-946.
    PMID: 38745538 DOI: 10.1002/cpdd.1411
    The current study aimed to evaluate the bioequivalence of a new generic combination of simvastatin and ezetimibe with the reference formulation. An open-label, randomized, 3-period, 3-sequence, crossover study, including 60 healthy volunteers, was implemented. Participants received the test and reference formulation, each containing 20 mg of simvastatin and 10 mg of ezetimibe as a single-dose tablet, separated by a minimum of 2-week washout periods. Blood samples were collected for 20 time points from predose to 72 hours after the dose. The total ezetimibe assay was carried out using a validated liquid chromatography-tandem mass spectrometry, while unconjugated ezetimibe, simvastatin, and simvastatin β-hydroxy acid determination was done via a validated ultra-performance liquid chromatography-tandem mass spectrometry. Each assay was preceded by a liquid-liquid extraction step. The pharmacokinetic parameters were derived using noncompartmental analysis and then compared between the reference and test formulations via a multivariate analysis of variance. No statistical difference was found in under the concentration-time curve from time 0 to the last quantifiable concentration and maximum concentration of unconjugated ezetimibe, total ezetimibe, and simvastatin between the reference and test formulations. The 90% confidence intervals of unconjugated ezetimibe, total ezetimibe, and simvastatin natural log-transformed under the concentration-time curve from time 0 to the last quantifiable concentration, and maximum concentration were in the range of 80%-125% as per the bioequivalence acceptance criteria. Therefore, the test formulation was bioequivalent to the reference formulation.
    Matched MeSH terms: Drug Combinations
  15. Ho KY, Gyanwali B, Dimayuga C, Eufemio EM, Bernardo E, Raju G, et al.
    BMJ Open, 2024 Oct 17;14(10):e090926.
    PMID: 39419619 DOI: 10.1136/bmjopen-2024-090926
    OBJECTIVES: This study aims to determine the usage pattern, effectiveness and safety of oral tramadol 75 mg and dexketoprofen trometamol 25 mg fixed-dose combination (TRAM/DKP FDC) in the short-term treatment of moderate-to-severe acute pain in real-world clinical practice in Asia.

    DESIGN: Real-world, prospective, multicentre, observational, phase IV study.

    SETTING: 13 tertiary-care hospital sites across the Philippines, Thailand, Malaysia and Singapore.

    PARTICIPANTS: Adult patients aged 18-80 years prescribed TRAM/DKP FDC for the short-term (up to 5 days) treatment of moderate-to-severe acute pain.

    MAIN OUTCOME MEASURES: Primary endpoints were the proportion of patients prescribed TRAM/DKP FDC with different types of postsurgical and non-surgical treatments, and the average dosing frequency and duration of TRAM/DKP FDC treatment. Secondary endpoints were the proportion of patients achieving ≥30% pain reduction at 8 hours post the first dose (pain severity was assessed using the 11-point Numeric Pain Rating Scale); patient satisfaction at the end of treatment (based on a 5-point Patient Global Evaluation Scale (PGE)) and safety including the incidence of adverse drug reactions (ADRs).

    RESULTS: Among 599 patients (median age 44 years, 61.3% female) enrolled in this study, 68.61% (n=411) were postsurgical and 31.39% (n=188) were non-surgical patients. TRAM/DKP FDC was prescribed in a diverse group of postsurgical patients (eg, orthopaedic, general and cancer surgery) as well as in non-surgical conditions (eg, lower back pain and musculoskeletal pain). In the majority of patients, TRAM/DKP FDC was prescribed every 8 hours (65.94%) and for 5 days (78.80%). There was a significant reduction in pain intensity throughout the study and 65% of patients achieved ≥30% pain reduction from baseline at 8 hours post the first dose of TRAM/DKP FDC on day 1. 95.69% of patients were satisfied with the treatment (rated good, very good and excellent on the PGE scale). Overall, 13.9% of patients reported ADRs; most were mild to moderate in severity. The most common ADRs were nausea, vomiting and dizziness.

    CONCLUSION: This study showed that TRAM/DKP FDC was used in diverse types of postsurgical and non-surgical patients in the real-world setting in Asia. It effectively reduced pain and was well tolerated with a high level of patient satisfaction.

    Matched MeSH terms: Drug Combinations
  16. Loo CY, Lee WH, Lauretani G, Scalia S, Cipolla D, Traini D, et al.
    Pharm Res, 2018 Feb 07;35(3):50.
    PMID: 29417313 DOI: 10.1007/s11095-018-2350-4
    PURPOSE: The failure of chronic therapy with antibiotics to clear persistent respiratory infection is the key morbidity and mortality factor for patients with chronic lung diseases, primarily due to the presence of biofilm in the lungs. It is hypothesised that carbon sources, such as mannitol, could stimulate the metabolic activity of persister cells within biofilms and restore their susceptibility to antibiotics. The aims of the current study are to: (1) establish a representative in vitro model of Pseudomonas aeruginosa biofilm lung infection, and (2) investigate the effects of nebulised mannitol on antibiotic efficacy, focusing on ciprofloxacin, in the eradication of biofilm.

    METHOD: Air interface biofilm was cultured onto Snapwell inserts incorporated into a modified pharmacopeia deposition apparatus, the Anderson Cascade Impactor (ACI). Three different formulations including mannitol only, ciprofloxacin only and combined ciprofloxacin and mannitol were nebulised onto the P. aeruginosa biofilm using the modified ACI. Antibacterial effectiveness was evaluated using colony-forming units counts, biofilm penetration and scanning electron microscopy.

    RESULTS: Nebulised mannitol promotes the dispersion of bacteria from the biofilm and demonstrated a synergistic enhancement of the antibacterial efficacy of ciprofloxacin compared to delivery of antibiotic alone.

    CONCLUSIONS: The combination of ciprofloxacin and mannitol may provide an important new strategy to improve antibiotic therapy for the treatment of chronic lung infections. Furthermore, the development of a representative lung model of bacterial biofilm could potentially be used as a platform for future new antimicrobial pre-clinical screening.

    Matched MeSH terms: Drug Combinations
  17. Joseph P, Pais P, Dans AL, Bosch J, Xavier D, Lopez-Jaramillo P, et al.
    Am Heart J, 2018 Dec;206:72-79.
    PMID: 30342297 DOI: 10.1016/j.ahj.2018.07.012
    BACKGROUND: It is hypothesized that in individuals without clinical cardiovascular disease (CVD), but at increased CVD risk, a 50% to 60% reduction in CVD risk could be achieved using fixed dose combination (FDC) therapy (usually comprised of multiple blood-pressure agents and a statin [with or without aspirin]) in a single "polypill". However, the impact of a polypill in preventing clinical CV events has not been evaluated in a large randomized controlled trial.

    METHODS: TIPS-3 is a 2x2x2 factorial randomized controlled trial that will examine the effect of a FDC polypill on major CV outcomes in a primary prevention population. This study aims to determine whether the Polycap (comprised of atenolol, ramipril, hydrochlorothiazide, and a statin) reduces CV events in persons without a history of CVD, but who are at least at intermediate CVD risk. Additional interventions in the factorial design of the study will compare the effect of (1) aspirin versus placebo on CV events (and cancer), (2) vitamin D versus placebo on the risk of fractures, and (3) the combined effect of aspirin and the Polycap on CV events.

    RESULTS: The study has randomized 5713 participants across 9 countries. Mean age of the study population is 63.9 years, and 53% are female. Mean INTERHEART risk score is 16.8, which is consistent with a study population at intermediate CVD risk.

    CONCLUSION: Results of the TIP-3 study will be key to determining the appropriateness of FDC therapy as a strategy in the global prevention of CVD.

    Matched MeSH terms: Drug Combinations
  18. Wei L, Lim SG, Xie Q, Văn KN, Piratvisuth T, Huang Y, et al.
    Lancet Gastroenterol Hepatol, 2019 02;4(2):127-134.
    PMID: 30555048 DOI: 10.1016/S2468-1253(18)30343-1
    BACKGROUND: Treatment with combined sofosbuvir and velpatasvir has resulted in high sustained virological response rates in patients chronically infected with hepatitis C virus (HCV) with genotypes 1-6 in clinical trials and real-world settings, but its efficacy and safety has not been assessed in Asia, a region with diverse HCV genotypes.

    METHODS: In this single-arm, open-label, phase 3 trial, we recruited patients from 38 sites across China, Thailand, Vietnam, Singapore, and Malaysia, who were chronically infected with HCV genotypes 1-6, and were HCV treatment-naive or treatment-experienced, either without cirrhosis or with compensated cirrhosis. Patients self-administered a combined sofosbuvir (400 mg) and velpatasvir (100 mg) tablet once daily for 12 weeks. The primary efficacy endpoint was sustained virological response, defined as HCV RNA less than 15 IU/mL at 12 weeks after completion of treatment (SVR12), assessed in all patients who received at least one dose of study drug. The primary safety endpoint was the proportion of adverse events leading to premature discontinuation of study drug. This trial is registered with ClinicalTrials.gov, number NCT02671500, and is completed.

    FINDINGS: Between April 14, 2016, and June 30, 2017, 375 patients were enrolled in the study, of whom 374 completed the full treatment course and one discontinued treatment. Overall, 362 (97% [95% CI 94-98]) of 375 patients achieved SVR12. Among 42 patients with HCV genotype 3b, all of whom had baseline resistance-associated substitutions in NS5A, 25 (89% [95% CI 72-98]) of 28 patients without cirrhosis and seven (50% [23-77]) of 14 patients with cirrhosis achieved SVR12. The most common adverse events were upper respiratory tract infection (36 [10%] patients) and headache (18 [5%] patients). There were no discontinuations due to adverse events. Serious adverse events were reported in three (1%) patients, none of which was judged to be related to sofosbuvir-velpatasvir treatment.

    INTERPRETATION: Consistent with data from other phase 3 studies, single-tablet sofosbuvir-velpatasvir for 12 weeks is an efficacious and safe treatment for Asian patients with chronic HCV infection, but might have lower efficacy in those infected with HCV genotype 3b and with cirrhosis.

    FUNDING: Gilead Sciences.

    Matched MeSH terms: Drug Combinations
  19. Khammanee T, Sawangjaroen N, Buncherd H, Tun AW, Thanapongpichat S
    Korean J Parasitol, 2019 Aug;57(4):369-377.
    PMID: 31533403 DOI: 10.3347/kjp.2019.57.4.369
    Artemisinin-based combination therapy (ACT) resistance is widespread throughout the Greater Mekong Subregion. This raises concern over the antimalarial treatment in Thailand since it shares borders with Cambodia, Laos, and Myanmar where high ACT failure rates were reported. It is crucial to have information about the spread of ACT resistance for efficient planning and treatment. This study was to identify the molecular markers for antimalarial drug resistance: Pfkelch13 and Pfmdr1 mutations from 5 provinces of southern Thailand, from 2012 to 2017, of which 2 provinces on the Thai- Myanmar border (Chumphon and Ranong), one on Thai-Malaysia border (Yala) and 2 from non-border provinces (Phang Nga and Surat Thani). The results showed that C580Y mutation of Pfkelch13 was found mainly in the province on the Thai-Myanmar border. No mutations in the PfKelch13 gene were found in Surat Thani and Yala. The Pfmdr1 gene isolated from the Thai-Malaysia border was a different pattern from those found in other areas (100% N86Y) whereas wild type strain was present in Phang Nga. Our study indicated that the molecular markers of artemisinin resistance were spread in the provinces bordering along the Thai-Myanmar, and the pattern of Pfmdr1 mutations from the areas along the international border of Thailand differed from those of the non-border provinces. The information of the molecular markers from this study highlighted the recent spread of artemisinin resistant parasites from the endemic area, and the data will be useful for optimizing antimalarial treatment based on regional differences.
    Matched MeSH terms: Drug Combinations
  20. Yusuf S, Joseph P, Dans A, Gao P, Teo K, Xavier D, et al.
    N Engl J Med, 2021 01 21;384(3):216-228.
    PMID: 33186492 DOI: 10.1056/NEJMoa2028220
    BACKGROUND: A polypill comprising statins, multiple blood-pressure-lowering drugs, and aspirin has been proposed to reduce the risk of cardiovascular disease.

    METHODS: Using a 2-by-2-by-2 factorial design, we randomly assigned participants without cardiovascular disease who had an elevated INTERHEART Risk Score to receive a polypill (containing 40 mg of simvastatin, 100 mg of atenolol, 25 mg of hydrochlorothiazide, and 10 mg of ramipril) or placebo daily, aspirin (75 mg) or placebo daily, and vitamin D or placebo monthly. We report here the outcomes for the polypill alone as compared with matching placebo, for aspirin alone as compared with matching placebo, and for the polypill plus aspirin as compared with double placebo. For the polypill-alone and polypill-plus-aspirin comparisons, the primary outcome was death from cardiovascular causes, myocardial infarction, stroke, resuscitated cardiac arrest, heart failure, or revascularization. For the aspirin comparison, the primary outcome was death from cardiovascular causes, myocardial infarction, or stroke. Safety was also assessed.

    RESULTS: A total of 5713 participants underwent randomization, and the mean follow-up was 4.6 years. The low-density lipoprotein cholesterol level was lower by approximately 19 mg per deciliter and systolic blood pressure was lower by approximately 5.8 mm Hg with the polypill and with combination therapy than with placebo. The primary outcome for the polypill comparison occurred in 126 participants (4.4%) in the polypill group and in 157 (5.5%) in the placebo group (hazard ratio, 0.79; 95% confidence interval [CI], 0.63 to 1.00). The primary outcome for the aspirin comparison occurred in 116 participants (4.1%) in the aspirin group and in 134 (4.7%) in the placebo group (hazard ratio, 0.86; 95% CI, 0.67 to 1.10). The primary outcome for the polypill-plus-aspirin comparison occurred in 59 participants (4.1%) in the combined-treatment group and in 83 (5.8%) in the double-placebo group (hazard ratio, 0.69; 95% CI, 0.50 to 0.97). The incidence of hypotension or dizziness was higher in groups that received the polypill than in their respective placebo groups.

    CONCLUSIONS: Combined treatment with a polypill plus aspirin led to a lower incidence of cardiovascular events than did placebo among participants without cardiovascular disease who were at intermediate cardiovascular risk. (Funded by the Wellcome Trust and others; TIPS-3 ClinicalTrials.gov number, NCT01646437.).

    Matched MeSH terms: Drug Combinations
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