Research Topics
| S L WalmsleySummaryAffiliation: University of Toronto Country: Canada Publications
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Detail Information
Publications
Treatment of HIV infection in pregnant women: antiretroviral management optionsMona R Loutfy
Immune Deficiency Treatment Centre, Montreal General Hospital, McGill University, Montreal, Quebec, Canada
Drugs 64:471-88. 2004....
Can herpes simplex virus type 2 suppression slow HIV disease progression: a study protocol for the VALacyclovir In Delaying Antiretroviral Treatment Entry (VALIDATE) trialDarrell H S Tan
University Health Network, 585 University Ave, 13N 1323, Toronto, Ontario, M5G 2N2 Canada
Trials 11:113. 2010..Suppression of herpes simplex virus type 2 (HSV-2) may be a novel strategy for achieving this goal because HSV-2 is associated with clinically significant increases in HIV viral load, the primary driver of HIV disease progression...
Regional differences in rates of HIV-1 viral load monitoring in Canada: Insights and implications for antiretroviral care in high income countriesJanet M Raboud
Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
BMC Infect Dis 10:40. 2010....
Multidrug-experienced HIV-1-infected women demonstrated similar virological and immunological responses to tipranavir/ritonavir compared with menSharon L Walmsley
University Health Network, University of Toronto, Canada
AIDS 23:429-31. 2009..Significantly greater increases in CD4 cell count (+81.2 vs. +48.6; P = 0.0012) were observed in women at week 48...
Opt in or opt out: what is optimal for prenatal screening for HIV infection?Sharon Walmsley
University of Toronto, Toronto, Ont
CMAJ 168:707-8. 2003
A prospective study of body fat redistribution, lipid, and glucose parameters in HIV-infected patients initiating combination antiretroviral therapySharon Walmsley
Department of Medicine, University Health Network, Toronto, Ontario, Canada
HIV Clin Trials 9:314-23. 2008..To prospectively determine incidence, prevalence, and extent of lipodystrophy (LD) and associated metabolic changes...
Pharmacokinetics, safety, and efficacy of tipranavir boosted with ritonavir alone or in combination with other boosted protease inhibitors as part of optimized combination antiretroviral therapy in highly treatment-experienced patients (BI Study 1182.51)Sharon L Walmsley
Division of Clinical Investigation and Human Physiology, University of Toronto, Toronto, ON, Canada
J Acquir Immune Defic Syndr 47:429-40. 2008..Given the limited treatment options for patients with high-level resistance, antiretroviral (ARV) regimens based on concomitant use of 2 ritonavir (RTV)-boosted protease inhibitors (PIs) were considered a therapeutic option...
A prospective randomized controlled trial of structured treatment interruption in HIV-infected patients failing highly active antiretroviral therapy (Canadian HIV Trials Network Study 164)Sharon L Walmsley
Department of Medicine, University of Toronto, 200 Elizabeth Street, Toronto, Ontario, Canada
J Acquir Immune Defic Syndr 45:418-25. 2007..The primary endpoint was the percentage of patients with a 3-month sustained HIV RNA level <50 copies/mL...
Protease inhibitor-based regimens for HIV therapy: safety and efficacySharon Walmsley
Division of Infectious Diseases, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
J Acquir Immune Defic Syndr 45:S5-13; quiz S28-31. 2007..In this article, the evidence for the use of boosted PIs as early therapy is reviewed, with emphasis on data available from comparative randomized controlled trials...
Enfuvirtide (T-20) cross-reactive glycoprotein 41 antibody does not impair the efficacy or safety of enfuvirtideSharon Walmsley
University of Toronto, Toronto, Ontario, Canada
J Infect Dis 188:1827-33. 2003..Safety was unaffected by the presence of positive antibody at any time point or change in level of antibody. There was no evidence that enfuvirtide cross-reactive gp41 antibody affects the efficacy or safety of enfuvirtide...
Lopinavir-ritonavir versus nelfinavir for the initial treatment of HIV infectionSharon Walmsley
Toronto Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
N Engl J Med 346:2039-46. 2002....
Gemini: a noninferiority study of saquinavir/ritonavir versus lopinavir/ritonavir as initial HIV-1 therapy in adultsSharon Walmsley
University of Toronto, Toronto, Canada
J Acquir Immune Defic Syndr 50:367-74. 2009..Direct comparison of the efficacy and safety of different agents is needed to guide selection of optimal treatment regimens for therapy-naive HIV-1-infected patients...
Treatment of AIDS-related cutaneous Kaposi's sarcoma with topical alitretinoin (9-cis-retinoic acid) gel. Panretin Gel North American Study GroupS Walmsley
Division of Infectious Diseases, Toronto Hospital, University of Toronto, Ontario, Canada
J Acquir Immune Defic Syndr 22:235-46. 1999..Given the promise that retinoids show in the treatment of various hyperproliferative skin disorders and in vitro evidence of inhibition of proliferation of KS cells, a randomized, controlled clinical trial was conducted...
The role of lopinavir/ritonavir (Kaletra) in the management of HIV infected adultsSharon Walmsley
University of Toronto, EG 219, 200 Elizabeth Street, Toronto, ON, M5G 2C4, Canada
Expert Rev Anti Infect Ther 1:389-401. 2003..In addition, an expert opinion and commentary on the clinical applications of this drug is provided...
Oropharyngeal candidiasis in patients with human immunodeficiency virus: correlation of clinical outcome with in vitro resistance, serum azole levels, and immunosuppressionS Walmsley
Department of Medicine, University Health Network, Toronto, Ontario, Canada
Clin Infect Dis 32:1554-61. 2001..Serum levels of azole and CD4 cell counts were also important parameters with regard to prediction of response. We conclude that in vivo and in vitro correlations compare favorably to studies of susceptibility testing in bacteria...
Can structured treatment interruptions (STIs) be used as a strategy to decrease total drug requirements and toxicity in HIV infection?Sharon Walmsley
University of Toronto, Immunodeficiency Clinic, Toronto Hospital, Toronto, Ontario, Canada
J Int Assoc Physicians AIDS Care (Chic) 1:95-103. 2002..Lastly, it identifies how the use of STIs could decrease drug burden and toxicity in patients receiving therapy...
Predictors of virological response in HIV-infected patients to salvage antiretroviral therapy that includes nelfinavirS L Walmsley
The Toronto Hospital Immunodeficiency Clinic, Department of Medicine, University of Toronto, Ontario, Canada
Antivir Ther 6:47-54. 2001..Response rates were lower in patients with increasing numbers of primary (P=0.045) or secondary (P=0.001) PI mutations. The addition of increasing numbers of reverse transcriptase mutations further impaired response rates (P=0.004)...
Long-term follow-up of a cohort of HIV-infected patients who discontinued maintenance therapy for cytomegalovirus retinitisSharon L Walmsley
Department of Medicine, Toronto Hospital, University Health Network, University of Toronto, Canada
HIV Clin Trials 7:1-9. 2006..To determine the long-term safety of discontinuation of maintenance therapy for cytomegalovirus retinitis (CMVR) and to identify predictors for relapse...
A large prospective study assessing injection site reactions, quality of life and preference in patients using the Biojector vs standard needles for enfuvirtide administrationM R Loutfy
Department of Medicine, University of Toronto, Maple Leaf Medical Clinic, and Department of Family and Community Medicine, St Michael s Hospital, Toronto, Ontario, Canada
HIV Med 8:427-32. 2007..Tualatin, OR, USA) relative to standard needles...
Non-nucleoside reverse transcriptase inhibitor failure impairs HIV-RNA responses to efavirenz-containing salvage antiretroviral therapyS L Walmsley
Toronto General Hospital Immunodeficiency Clinic, University Health Network, University of Toronto, Ontario, Canada
AIDS 15:1581-4. 2001..No patient with a viral isolate with an increased IC50 to efavirenz by virtual phenotype had a virological response..
Assay of HIV gp41 amino acid sequence to identify baseline variation and mutation development in patients with virologic failure on enfuvirtideM R Loutfy
University of Toronto, Toronto, Ont, Canada
Antiviral Res 75:58-63. 2007..Further study is required to determine the clinical relevance of the clade related polymorphisms and the new mutations identified in the patients with virologic failure...
CD36 deficiency induced by antiretroviral therapyLena Serghides
Division of Infectious Diseases, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
AIDS 16:353-8. 2002..The molecular basis of lipodystrophy, a syndrome associated with HIV antiretroviral (ARV) therapy, remains unknown...
Lopinavir plus ritonavir: a novel protease inhibitor combination for HIV infectionsDarrell Tan
Division of Infectious Diseases, University of Toronto, Toronto, Canada
Expert Rev Anti Infect Ther 5:13-28. 2007..Its favorable pharmacological and clinical characteristics have recently prompted investigators to explore its potential novel applications in HIV monotherapy and double-boosted regimens...
Etravirine for HIV-I: addressing the limitations of the nonnucleoside reverse transcriptase inhibitor classTroy Grennan
Department of Infectious Diseases, McMaster University, St Joseph s Healthcare F506 1, Hamilton, Ontario, Canada
J Int Assoc Physicians AIDS Care (Chic) 8:354-63. 2009..As new data emerge on the weighting of ETR's resistance-associated mutations (RAMs), investigators and clinicians will no doubt be able to further characterize its specific place in the HIV treatment armamentarium...
Is chromium an important element in HIV-positive patients with metabolic abnormalities? An hypothesis generating pilot studyElaheh Aghdassi
Department of Medicine, The University Health Network, The Toronto General Hospital, 200 Elizabeth St, Eaton Wing, 9 Floor, Room 217a, Toronto, Ontario, M5G 2C4, Canada
J Am Coll Nutr 25:56-63. 2006..Chromium plays a role in insulin sensitivity...
Factors contributing to the lack of human immunodeficiency virus type 1 (HIV-1) transmission in HIV-1-discordant partnersD Bienzle
Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada
J Infect Dis 182:123-32. 2000..These results suggest that a combination of factors, including cellular immunity, viral characteristics, and coreceptor integrity, may be involved in the persistent nontransmission of HIV...
Effectiveness of step-wise intervention plan for managing nelfinavir-associated diarrhea: a pilot studyAnita Rachlis
Sunnybrook and Women s College Health Sciences Centre, University of Toronto, Ontario, Canada
HIV Clin Trials 6:203-12. 2005..Pilot study to evaluate the effectiveness of a step-wise diarrhea management strategy for nelfinavir-associated diarrhea...
The relationship between lipodystrophy-associated body changes and measures of quality of life and mental health for HIV-positive adultsRobert Burgoyne
Toronto General Hospital Immunodeficiency Clinic, Ontario, Canada
Qual Life Res 14:981-90. 2005..To investigate the relationship between lipodystrophy-specific symptom severity and wellbeing...
Polypharmacy in HIV: impact of data source and gender on reported drug utilizationMichelle D Furler
Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
AIDS Patient Care STDS 18:568-86. 2004..Our findings emphasize the complexity of pharmacotherapy in HIV and the need for comprehensive drug assessment, particularly because of the risks of drug-drug interactions and decreased adherence secondary to therapeutic complexity...
A randomized, placebo-controlled trial of rosiglitazone for HIV-related lipoatrophyRodrigo B Cavalcanti
Department of Medicine and McLaughlin Rotman Centre, University Health Network, Toronto, ON, M5T 2S8, Canada
J Infect Dis 195:1754-61. 2007..Thiazolidinediones such as rosiglitazone may have benefit in ameliorating human immunodeficiency virus (HIV) lipoatrophy...
Longitudinal trends in antiretroviral use in a cohort of men and women in Ontario, CanadaMichelle D Furler
Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
AIDS Patient Care STDS 20:245-57. 2006....
Reassessment of enfuvirtide's role in the management of HIV-1 infectionPatricia Marr
University Health Network, Immunodeficiency Clinic, 13 North, Room 1314, 200 Elizabeth Street, Toronto, ON M5G2C4, Canada
Expert Opin Pharmacother 9:2349-62. 2008..This has led many clinicians to reevaluate the clinical utility of enfuvirtide...
A randomized trial of N-acetylcysteine for prevention of trimethoprim-sulfamethoxazole hypersensitivity reactions in Pneumocystis carinii pneumonia prophylaxis (CTN 057). Canadian HIV Trials Network 057 Study GroupS L Walmsley
Department of Medicine, University of Toronto, Ontario, Canada
J Acquir Immune Defic Syndr Hum Retrovirol 19:498-505. 1998..N-acetylcysteine at a dose of 3 g twice daily could not be shown to prevent TMP-SMX hypersensitivity reactions in patients with HIV infection...
Medicinal and recreational marijuana use by patients infected with HIVMichelle D Furler
Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
AIDS Patient Care STDS 18:215-28. 2004..The role of poverty in patient choice of medicinal marijuana despite access to care and the large proportion of women using marijuana for pain constitute areas for further study...
Reproducibility of DXA estimations of body fat in HIV lipodystrophy: implications for clinical researchRodrigo B Cavalcanti
Department of Medicine, University of Toronto, and Division of General Internal Medicine, University Health Network, Toronto, Ontario, Canada
J Clin Densitom 8:293-7. 2005..Minimal detectable differences were smaller than differences observed in published studies for all measurements. DXA is a sensitive tool for detecting changes in peripheral fat among patients with HIV lipodystrophy...
Individualized therapy for the treatment-experienced patientSharon Walmsley
Immunodeficiency Clinic, Toronto Hospital, University Health Network, University of Toronto
AIDS Read 13:S11-5. 2003..The selection of salvage therapy remains complex and needs to be individualized...
CTN-194 (PICCO): design of a trial of citalopram for the prevention of depression and its consequences in HIV-hepatitis C co-infected individuals initiating pegylated interferon/ribavirin therapyMarina B Klein
Department of Medicine, Divisions of Infectious Diseases Immunodeficiency, Royal Victoria Hospital, McGill University Health Centre, Montreal, Quebec, Canada
Contemp Clin Trials 29:617-30. 2008..Effective prevention of a broad range of neuropsychiatric symptoms by citalopram has the potential to diminish PEG-IFN-alpha associated morbidity and consequently, allow a greater number of patients to complete full therapy...
A meta-analysis of six placebo-controlled trials of thiazolidinedione therapy for HIV lipoatrophyJanet M Raboud
University of Toronto, Toronto, Canada
HIV Clin Trials 11:39-50. 2010..To determine the impact of thiazolidinediones (TZD) on changes in limb fat mass in HIV-infected individuals, particularly in those not receiving a thymidine analogue...
First-line regimen failure of antiretroviral therapy: a clinical and evidence-based approachIsaac Bogoch
Department of Medicine, University Health Network, University of Toronto, Ontario, Canada
Curr Opin HIV AIDS 4:493-8. 2009..To provide a clinical approach for choosing an appropriate second-line antiretroviral (ARV) regimen in HIV-positive patients with virologic failure...
Use of complementary and alternative medicine by HIV-infected outpatients in Ontario, CanadaMichelle D Furler
Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
AIDS Patient Care STDS 17:155-68. 2003..CAM use in Canadian patients with HIV is extremely common, with higher use among women. The definition of CAM has a substantial impact both on reported prevalence rates and on predictors of CAM use...
Mild to moderate symptoms do not correlate with lactate levels in HIV-positive patients on nucleoside reverse transcriptase inhibitorsDarrell Tan
Division of Infectious Diseases, University of Toronto, 200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4
HIV Clin Trials 7:107-15. 2006..This cross-sectional study evaluated whether an association exists between mild symptoms and lactate levels...
The effect of dairy product ingestion on human immunodeficiency virus-related diarrhea in a sample of predominantly gay men: a randomized, controlled, double-blind, crossover trialJill Tinmouth
Department of Medicine, University of Toronto, Ontario, Canada
Arch Intern Med 166:1178-83. 2006..Empirical lactose avoidance is often advised despite lack of evidence of benefit in a population at risk for osteopenia and malnutrition...
An estimate of the proportion of symptoms reported in self-administered questionnaires that are captured as adverse drug events in an observational databaseJanet Raboud
Department of Medicine, University Health Network, University of Toronto, Ontario, Canada
HIV Clin Trials 8:311-9. 2007..This study was conducted to determine how frequently self-reported symptoms are captured as adverse drug events (ADEs) during chart abstraction...
Systematic review of strategies to measure HIV-related diarrheaJill Tinmouth
Division of Gastroenterology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
HIV Clin Trials 8:155-63. 2007..There is no gold standard to measure diarrhea, making comparison across trials difficult. We conducted a systematic review to determine current research practice in measuring HIV-related diarrhea...
Interpretation of diagnostic laboratory tests for severe acute respiratory syndrome: the Toronto experiencePatrick Tang
University of Toronto, Ont
CMAJ 170:47-54. 2004..In patients with SARS, specimens taken from the lower respiratory tract and stool samples test positive by means of RT-PCR more often than do samples taken from other areas...
Evaluation of Stool frequency and stool form as measures of HIV-related diarrheaJill Tinmouth
Division of Gastroenterology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
HIV Clin Trials 8:421-8. 2007..In the highly active antiretroviral therapy (HAART) era, HIV-related diarrhea remains common. Our aim was to evaluate stool frequency and form as measures of HIV-related diarrhea...
SARS outbreak in the Greater Toronto Area: the emergency department experienceBjug Borgundvaag
Mount Sinai Hospital, Toronto, Ont
CMAJ 171:1342-4. 2004
Clinical features and short-term outcomes of 144 patients with SARS in the greater Toronto areaChristopher M Booth
University of Toronto, Mount Sinai Hospital, Sunnybrook and Women's College Health Sciences Centre, Toronto, Ontario, Canada
JAMA 289:2801-9. 2003..Although SARS is associated with significant morbidity and mortality, especially in patients with diabetes or other comorbid conditions, the vast majority (93.5%) of patients in our cohort survived...
Durable efficacy of enfuvirtide over 48 weeks in heavily treatment-experienced HIV-1-infected patients in the T-20 versus optimized background regimen only 1 and 2 clinical trialsMark Nelson
Chelsea and Westminster Hospital, London, United Kingdom
J Acquir Immune Defic Syndr 40:404-12. 2005....
Successful discontinuation of therapy for disseminated Mycobacterium avium complex infection after effective antiretroviral therapyStephen D Shafran
University of Alberta, Edmonton, Alberta, Canada
Ann Intern Med 137:734-7. 2002..S. Public Health Service/Infectious Diseases Society of America recommend continuing therapy for disseminated M. avium complex infection, regardless of the response to HAART...
Clinical problem-solving. Where are you from?Kevin C Katz
Department of Medicine, University of Toronto
N Engl J Med 346:764-7. 2002
Salvage antiretroviral therapy in HIV infectionMona R Loutfy
Department of Medicine, Division of Infectious Diseases, University of Toronto, Canada
Expert Opin Pharmacother 3:81-90. 2002..It is important that new agents and new targets continue to be developed as an increasing number of patients in practice have exhausted all treatment options...
Treatment response to ritonavir-boosted tipranavir versus ritonavir-boosted lopinavir in HIV-1 patients with higher lopinavir mutation scoresSharon L Walmsley
Toronto General Hospital, University of Toronto, Toronto, Canada
AIDS 21:2245-8. 2007..Tipranavir/ritonavir therapy improves treatment response rates compared with lopinavir/ritonavir in patients whose viruses have reduced susceptibility to lopinavir/ritonavir...
CD4(+) cell count increase predicts clinical benefits in patients with advanced HIV disease and persistent viremia after 1 year of combination antiretroviral therapyMona R Loutfy
McGill University Health Centre, Montreal, Quebec, Canada
J Infect Dis 192:1407-11. 2005..A 25-cell/mm(3) increase in CD4(+) cell count was associated with a 21% reduction in the risk of an AIDS-defining event or death (P<.0001)...
Randomized controlled trial of once-daily tenofovir, lamivudine, and lopinavir/ritonavir versus remaining on the same regimen in virologically suppressed HIV-infected patients on their first PI-containing HAART regimenMona R Loutfy
Department of Medicine, University of Toronto, Toronto, Canada
HIV Clin Trials 8:259-68. 2007....
Predictive value of HIV-1 protease genotype and virtual phenotype on the virological response to lopinavir/ritonavir-containing salvage regimensMona R Loutfy
Immune Deficiency Treatment Centre, Montreal General Hospital, McGill University, Montreal, Que, Canada
Antivir Ther 9:595-602. 2004....
Baseline HIV-1 RNA level and CD4 cell count predict time to loss of virologic response to nelfinavir, but not lopinavir/ritonavir, in antiretroviral therapy-naive patientsMartin S King
Abbott Laboratories, Abbott Park, Illinois, USA
J Infect Dis 190:280-4. 2004..7-3.0; P<.001). For nelfinavir-treated patients, but not for lopinavir/ritonavir-treated patients, higher baseline HIV-1 RNA levels and lower baseline CD4 cell counts were associated with a higher risk of loss of virologic response...
Durable efficacy of tipranavir-ritonavir in combination with an optimised background regimen of antiretroviral drugs for treatment-experienced HIV-1-infected patients at 48 weeks in the Randomized Evaluation of Strategic Intervention in multi-drug reSistaCharles B Hicks
Division of Infectious Diseases and International Health, Duke University Medical Center, Durham, NC 27710, USA
Lancet 368:466-75. 2006....
Efficacy of the protease inhibitors tipranavir plus ritonavir in treatment-experienced patients: 24-week analysis from the RESIST-1 trialJoseph Gathe
Therapeutic Concepts, Houston, TX 77004, USA
Clin Infect Dis 43:1337-46. 2006....
TORO: ninety-six-week virologic and immunologic response and safety evaluation of enfuvirtide with an optimized background of antiretroviralsJacques Reynes
Hopital Gui de Chauliac, CHU Montpellier, France
AIDS Patient Care STDS 21:533-43. 2007..In conclusion, these data demonstrate durable efficacy and safety of ENF over 96 weeks and that early use of ENF in combination with other agents for the treatment of antiretroviral-experienced HIV-infected subjects is beneficial...
Inclusion body myositis: another possible manifestation of antiretroviral-associated mitochondrial toxicityMona R Loutfy
AIDS 17:1266-7. 2003
Canadian consensus guidelines for the care of HIV-positive pregnant women: putting recommendations into practiceDavid R Burdge
Oak Tree Clinic, Children's and Women's Health Centre of British Columbia and University of British Columbia, Vancouver, BC
CMAJ 168:1683-8. 2003
Field evaluation of the Merlin immediate HIV-1 and -2 test for point-of-care detection of human immunodeficiency virus antibodiesStephen D Shafran
Division of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada T6G 2B7
Clin Infect Dis 34:658-61. 2002..96%, and its overall accuracy was 99.96%. The Merlin POC test is highly accurate for the detection of HIV antibodies...
Lipodystrophy severity does not contribute to HAART nonadherenceEvan J Collins
Immunodeficiency Clinic, Toronto General Hospital, Toronto, Canada
AIDS Behav 10:273-7. 2006..Remembering was most strongly related to adherence indicators, retaining statistical significance in adjusted multivariate regression analyses...
Canadian consensus guidelines for the management of pregnancy, labour and delivery and for postpartum care in HIV-positive pregnant women and their offspring (summary of 2002 guidelines)David R Burdge
Oak Tree Clinic, Children's and Women's Health Centre of British Columbia and University of British Columbia, Vancouver, BC
CMAJ 168:1671-4. 2003
