Nittaya Phanuphak
Biographic Data
| ID | 6074826 |
|---|---|
| NAME | Nittaya Phanuphak |
| GIVEN NAMES | Nittaya |
| FAMILY NAME | Phanuphak |
| SIGNATURE | PHANUPHAK N |
| AFFILIATIONS | HIV Netherlands Australia Thailand Research Collaboration |
| ORCID | 0000-0002-0036-3165 |
| VERIFIED | Yes |
| TOTAL WORKS | 37 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 37 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Peer-led community HIV/syphilis testing with linkage within seven days for MSM and transgender women in Indonesia
We evaluated a peer-led, community-based service (CBS) model providing integrated HIV/syphilis testing and referral for men who have sex with men (MSM) and transgender women (TGW) in South Sulawesi, Indonesia. Trained community health workers (CHWs) delivered finger-prick HIV RDTs and, where available, dual HIV/syphilis tests through three outreach modalities: door-to-door outreach, "static community posts", and mobile hotspot events. Primary out…
Client-centered enablers and persistent bottlenecks across Indonesia’s HIV cascade
Indonesia's HIV epidemic remains concentrated among key populations despite policy development and program expansion. This qualitative study examined how service design and implementation mechanisms shape cascade performance. Across four provinces, we conducted nine focus groups and 22 interviews with 64 participants, including policymakers, program managers, providers, community-based organization (CBO) staff and peers, academics, and beneficiar…
Stigmatizing attitudes toward Covid-19 among various Thai populations
Comprehensive Analysis and Leveraging Online Innovations to Improve HIV and STI Prevention and Treatment Services in Major Cities of Thailand
Despite a 50% reduction in new HIV cases since 2010, HIV and sexually transmitted infections (STIs) remain pressing public health challenges in Thailand, particularly among marginalized and high-risk populations. This study examined 8,865 bookings made between October 1, 2023, and September 30, 2024, through Love2Test.org (L2T), a mobile platform launched in December 2020 to provide accessible sexual health services, including HIV testing and STI…
Amphetamine-Type Stimulant Use and Associated Factors Among Men Who have Sex with Men in Bangkok
Amphetamine-type stimulants (ATS) have become prevalent among men who have sex with men (MSM), often associated with a higher risk of HIV acquisition. However, little is known about ATS use among MSM in Thailand. This study identifies ATS use patterns and associated factors among MSM in Bangkok, Thailand. Between January 2018 and May 2019, Thai MSM aged 18 years and older were recruited from an HIV testing center in Bangkok, for an 18-month longi…
Assessing Demand for Long-Acting Injectable PrEP and Emerging PrEP Options for HIV Prevention in Australia
U=U Awareness, Belief and Understanding and Well-Being Among People Living with HIV, and Correct Communication Among Healthcare Providers in Thailand
The Undetectable equals Untransmittable (U=U) message improves health outcomes among people living with HIV (PLHIV) and reduces HIV-related stigma. Some PLHIV are unaware of U=U, and those who know about U=U sometimes perceive it as inaccurate. Healthcare providers (HCP) are an important source of information for PLHIV, but they don't consistently or accurately communicate U=U with PLHIV. We conducted web-based surveys among PLHIV and HCP in Thai…
Outcomes of Home Isolation Care Among Covid-19 Patients During the 2021 Epidemic Crisis in the Bangkok Metropolitan Region, Thailand
Objectives. To determine the overall mortality and risk factors of COVID-19 patients who were admitted to the Home Isolation (HI) program in Bangkok, Thailand, during the epidemic crisis in 2021. Methods. We conducted a retrospective cohort study using the data from a government telehealth application from July to December 2021. The vital status was verified from the government database on September 20, 2022. We used survival analysis to analyze …
Barriers and facilitators to pre-exposure prophylaxis (PrEP) uptake and adherence among men who have sex with men (MSM) in Thailand
Young MSM (YMSM), aged 15-24, account for nearly half of new HIV infections in Thailand. Pre-exposure prophylaxis (PrEP) is an effective prevention medicine for populations at substantial HIV risk, yet YMSM frequently have suboptimal uptake of and adherence to PrEP. We conducted 35 in-depth interviews with YMSM to explore barriers and facilitators of both PrEP initiation and adherence. Interviews also elicited the perceptions and experiences of h…
Condom Failure Among HIV-Negative Men in Serodiscordant Relationships in Australia, Brazil, and Thailand
Condoms continue to be used by many gay, bisexual, and other men who have sex with men (GBM) to reduce the risk of HIV transmission. However this is impacted by condom failure events, defined here as condom breakage and slippage. In a prospective, observational cohort study of 343 HIV serodiscordant male couples recruited through high HIV caseload clinics and hospitals between 2012 and 2016 in Australia, Brazil, and Thailand, condom failure rates…
Overcoming challenges across the HIV care continuum in the Asia-Pacific region
⇒ Even with effective prevention and treatment measures, HIV continues to require urgent action in the Asia-Pacific region to identify those living with HIV and those at high risk of acquiring HIV, and improve their linkage to HIV testing and medical care.⇒ To facilitate this effort, an expert panel was formed that included HIV care providers and researchers, community organisation leaders, and patient advocates in China, Hong Kong Special Admini…
Agreements, Behaviour, and Change
Male HIV serodiscordant couples have diverse relationship agreements regarding sex outside the relationship. We examined the relationship agreements as described by 343 male HIV-negative partners in HIV serodiscordant relationships in Australia, Brazil and Thailand participating in a multi-year cohort study. At baseline, 125 (34.1%) HIV-negative partners reported no agreement, 115 (33.5%) had a monogamous agreement, and 103 (37.9%) had an open ag…
Lessons for the HIV response from structural innovations catalysed by Covid-19
While much has been written on how the HIV response laid the groundwork for the COVID-19 response, this analysis examined structural innovations used to respond to COVID-19 and assessed their potential utility for the future of the HIV response. Our analysis indicates certain COVID-19-related innovations are clearly relevant and have potential value for the HIV response moving forward. Public–private partnerships that catalysed the unprecedented,…
Persons living with HIV treated in acute HIV infection report good health-related quality of life in Thailand
The health-related quality of life (HRQoL) among persons living with HIV (PLWHA) who initiate ART during acute HIV infection (AHI) is not well studied. Participants in the SEARCH010/RV254 cohort initiated ART during AHI. They completed the Thai version of the World Health Organisation Quality of Life instrument-BREF (WHOQOL-BREF) and Patient Health Questionnaire-9 (PHQ-9) prior to ART initiation and 24 weeks later. Of 452 participants, 406 (90%) …
Individual Differences in CD4/CD8 T-Cell Ratio Trajectories and Associated Risk Profiles Modeled From Acute HIV Infection
OBJECTIVE: We examined individual differences in CD4/CD8 T-cell ratio trajectories and associated risk profiles from acute HIV infection (AHI) through 144 weeks of antiretroviral therapy (ART) using a data-driven approach. METHODS: A total of 483 AHI participants began ART during Fiebig I-V and completed follow-up evaluations for 144 weeks. CD4+, CD8+, and CD4/CD8 T-cell ratio trajectories were defined followed by analyses to identify associated …
The relationship between sexual and gender stigma and difficulty accessing primary and mental healthcare services among LGBTQI+ populations in Thailand
Sexual and gender stigma is a known contributor to population health inequities; however, its impact on healthcare access among sexual and gender minorities (SGM) in Thailand is understudied. Therefore, we sought to examine the level of SGM stigma and its impact on self-reported difficulty accessing primary and mental healthcare services among a nationally recruited sample of lesbian, gay, bisexual, transgender, queer, intersex, and other gender …
Prevalence and the associated factors of hepatitis B and hepatitis C viral infections among HIV-positive individuals in same-day antiretroviral therapy initiation program in Bangkok, Thailand
Around 5-10% of newly diagnosed PWH in Bangkok had hepatitis B viral infection after 25 years of universal vaccination. Anti-HCV positivity was found in 4-5% of PWH who were MSM and TGW. As World Health Organization and Thailand national guidelines already support routine screening of hepatitis B and C viral infections in PWH and populations at increased risk of HIV including MSM and TGW, healthcare providers should reinforce this strategy and pr…
Attitudes About Analytic Treatment Interruption (ATI) in HIV Remission Trials with Different Antiretroviral Therapy (ART) Resumption Criteria
Cabotegravir for HIV Prevention in Cisgender Men and Transgender Women
BACKGROUND: Safe and effective long-acting injectable agents for preexposure prophylaxis (PrEP) for human immunodeficiency virus (HIV) infection are needed to increase the options for preventing HIV infection. METHODS: We conducted a randomized, double-blind, double-dummy, noninferiority trial to compare long-acting injectable cabotegravir (CAB-LA, an integrase strand-transfer inhibitor [INSTI]) at a dose of 600 mg, given intramuscularly every 8 …
Characteristics of Agreements to have Condomless Anal Intercourse in the Presence of an Undetectable Viral Load Among HIV Serodiscordant Male Couples in Australia, Brazil and Thailand
Perspectives of Transgender Women Toward Study Recruitment and Retention
Antiretroviral-naïve HIV-infected patients had lower bone formation markers than HIV-uninfected adults
There are limited studies regarding bone health among people living with HIV (PLHIV) in Asia. We compared bone mineral density (BMD), serum 25-hydroxyvitamin D (25(OH)D) status and bone turnover markers (serum procollagen type1 N-terminal propeptide (P1NP), osteocalcin (OC) and C-terminal cross-linking telopeptide of type1 collagen) among 302 antiretroviral therapy (ART) naive PLHIV compared to 269 HIV-uninfected controls from Thailand. People ag…
Implementation and impact of a technology-based HIV risk-reduction intervention among Thai men who have sex with men using “Vialogues”
We conducted a randomized control trial to evaluate the impact of a novel technology-based intervention on HIV risks and condom use behaviors among Thai men who have sex with men (MSM). Between April 2016 and August 2017, participants aged 18 years and above, and having engaged in unprotected sex in past six months were randomly assigned to control and intervention arm, and received HIV testing at baseline, month 6 and 12. Intervention arm partic…
Changes in risk behaviors among Thai men who have sex with men and transgender women enrolled in the test and treat cohort
The test-and-treat approach has the potential to reduce high-risk sexual behaviors by linking high-risk individuals to health education, although this has not been proven yet. We used longitudinal data from the Test and Treat Demonstration Project among Thai men who have sex with men (MSM) and transgender women (TGW) who were not known to be HIV-positive to analyze changes in risk behaviors during the 24-month study period categorized by three gr…
Correlates of nonadherence to key population-led HIV pre-exposure prophylaxis services among Thai men who have sex with men and transgender women
Urgent, innovative interventions for early PrEP adherence support among vulnerable sub-populations such as younger users, TGW, and new clients are needed to maximize prevention strategy in Thailand
No prominent works on this page.
Sexual life, options for contraception and intention for conception in HIV-positive people on successful antiretroviral therapy in Thailand
This article reports on the sexual life of HIV-positive heterosexual men and women in a stable relationship and on successful antiretroviral therapy in Thailand. We focused on one side on their sexual practices and options for contraception, and on the other on their intention for conception and factors influencing it, in the time of highly active antiretroviral therapy. In a cross-sectional study, 200 participants completed a questionnaire. Elev…
Perceived dental needs and attitudes toward dental treatments in HIV-infected Thais
Despite the advancement in highly active antiretroviral therapy and improved health status of HIV-infected individuals, dental problems are still affecting their life and well-beings. We aimed to establish the prevalence of oral and dental complaints among HIV-infected patients, the prevalence of delayed access to dental service, and factors related with delayed access to dental service. A cross-sectional study using self-report questionnaire com…
Uptake and continuous use of copper intrauterine device in a cohort of HIV-positive women
Copper intrauterine device (IUD) is not commonly used in many countries, though it provides effective reversible contraception with no or minimal primary systemic side effects. We assessed its uptake and continuation of use among HIV-positive Thai women. Sixty-six of 322 women of reproductive age, whom we approached for the study, met the eligibility criteria. Sterilization (62%) was the main reason for failure to enroll. Twenty-nine of them (44%…
Attitudes toward, and interest in, the test-and-treat strategy for HIV prevention among Thai men who have sex with men
This study assessed the attitudes toward, and interest in, the test-and-treat strategy, comprising regular HIV testing and immediate antiretroviral treatment (ART) among men who have sex with men (MSM) in Bangkok, Thailand. A total of 363 participants completed the questionnaires before and after learning about their HIV status. Previous HIV testing reported by 69.8% and 34.7% tested at least annually. Before pretest counseling, 83.2% expressed i…
The Opposites Attract Study of viral load, HIV treatment and HIV transmission in serodiscordant homosexual male couples
This study will provide critical data on the reduction in HIV transmission risk associated with being on HIV treatment in homosexual male serodiscordant couples in different regions of the world. Data from men in new relationships will be particularly valuable given that the highest transmission risk is in the first year of serodiscordant relationships. Furthermore, the detailed behavioural and attitudinal data from the participant questionnaires…
Low uptake of HIV testing and no HIV positivity in stable serodiscordant heterosexual partners of long-term treated HIV-infected Thais
The objective of this study was to characterize HIV-serodiscordant heterosexual couples and to evaluate acceptance for HIV testing and HIV prevalence in nonindex partners. We conducted a cross-sectional study with quantitative and qualitative components. Two cohorts of 1767 HIV-positive people were screened to identify heterosexual HIV-serodiscordant couples. HIV-positive partners (index) were administered a questionnaire; CD4, viral load (VL), a…
Differences Between Men Who Have Sex with Men (MSM) with Low CD4 Cell Counts at Their First HIV Test and MSM with Higher CD4 Counts in Bangkok, Thailand
Psychosocial and Behavioral Characteristics of High-Risk Men Who Have Sex with Men (MSM) of Unknown HIV Positive Serostatus in Bangkok, Thailand
A qualitative study of Thai HIV-positive young men who have sex with men and transgender women demonstrates the need for eHealth interventions to optimize the HIV care continuum
In Thailand, young men who have sex with men (YMSM) and transgender women (TG) are disproportionately affected by HIV and have suboptimal care continuum outcomes. Although Thai YMSM and young TG are early adopters of emerging technologies and have high Internet and technology access and utilization, the potential of technology has not been harnessed to optimize the HIV treatment cascade. We interviewed 18 behaviorally HIV-infected YMSM and young …
Active targeted HIV testing and linkage to care among men who have sex with men attending a gay sauna in Thailand
Existing data on the feasibility of human immunodeficiency virus (HIV) testing and counseling (HTC) and linkage to care among men who have sex with men (MSM) in hotspots are currently limited. A prospective study on active targeted HTC and linkage to care among MSM (≥18 years old) was conducted at a gay sauna in Thailand from November 2013 to October 2015. HIV risks and risk perception were evaluated through an anonymous survey. HIV testing with …
Viral suppression and HIV transmission in serodiscordant male couples
Use of copper intrauterine device is not associated with higher bacterial vaginosis prevalence in Thai HIV-positive women
The study assessed and compared bacterial vaginosis (BV) prevalence in Thai women in reproductive age in four study groups - group 1, HIV-positive with copper intrauterine device (Cu-IUD); group 2, HIV-positive without Cu-IUD; group 3, HIV-negative with Cu-IUD; and group 4, HIV-negative without Cu-IUD. We conducted a cross-sectional study. BV prevalence was assessed by Nugent score and Amsel criteria. Descriptive statistics was used to present ba…
Changes in risk behaviors among Thai men who have sex with men and transgender women enrolled in the test and treat cohort
The test-and-treat approach has the potential to reduce high-risk sexual behaviors by linking high-risk individuals to health education, although this has not been proven yet. We used longitudinal data from the Test and Treat Demonstration Project among Thai men who have sex with men (MSM) and transgender women (TGW) who were not known to be HIV-positive to analyze changes in risk behaviors during the 24-month study period categorized by three gr…
Correlates of nonadherence to key population-led HIV pre-exposure prophylaxis services among Thai men who have sex with men and transgender women
Urgent, innovative interventions for early PrEP adherence support among vulnerable sub-populations such as younger users, TGW, and new clients are needed to maximize prevention strategy in Thailand
Antiretroviral-naïve HIV-infected patients had lower bone formation markers than HIV-uninfected adults
There are limited studies regarding bone health among people living with HIV (PLHIV) in Asia. We compared bone mineral density (BMD), serum 25-hydroxyvitamin D (25(OH)D) status and bone turnover markers (serum procollagen type1 N-terminal propeptide (P1NP), osteocalcin (OC) and C-terminal cross-linking telopeptide of type1 collagen) among 302 antiretroviral therapy (ART) naive PLHIV compared to 269 HIV-uninfected controls from Thailand. People ag…
Implementation and impact of a technology-based HIV risk-reduction intervention among Thai men who have sex with men using “Vialogues”
We conducted a randomized control trial to evaluate the impact of a novel technology-based intervention on HIV risks and condom use behaviors among Thai men who have sex with men (MSM). Between April 2016 and August 2017, participants aged 18 years and above, and having engaged in unprotected sex in past six months were randomly assigned to control and intervention arm, and received HIV testing at baseline, month 6 and 12. Intervention arm partic…
Cabotegravir for HIV Prevention in Cisgender Men and Transgender Women
BACKGROUND: Safe and effective long-acting injectable agents for preexposure prophylaxis (PrEP) for human immunodeficiency virus (HIV) infection are needed to increase the options for preventing HIV infection. METHODS: We conducted a randomized, double-blind, double-dummy, noninferiority trial to compare long-acting injectable cabotegravir (CAB-LA, an integrase strand-transfer inhibitor [INSTI]) at a dose of 600 mg, given intramuscularly every 8 …
Characteristics of Agreements to have Condomless Anal Intercourse in the Presence of an Undetectable Viral Load Among HIV Serodiscordant Male Couples in Australia, Brazil and Thailand
Perspectives of Transgender Women Toward Study Recruitment and Retention
Lessons for the HIV response from structural innovations catalysed by Covid-19
While much has been written on how the HIV response laid the groundwork for the COVID-19 response, this analysis examined structural innovations used to respond to COVID-19 and assessed their potential utility for the future of the HIV response. Our analysis indicates certain COVID-19-related innovations are clearly relevant and have potential value for the HIV response moving forward. Public–private partnerships that catalysed the unprecedented,…
Persons living with HIV treated in acute HIV infection report good health-related quality of life in Thailand
The health-related quality of life (HRQoL) among persons living with HIV (PLWHA) who initiate ART during acute HIV infection (AHI) is not well studied. Participants in the SEARCH010/RV254 cohort initiated ART during AHI. They completed the Thai version of the World Health Organisation Quality of Life instrument-BREF (WHOQOL-BREF) and Patient Health Questionnaire-9 (PHQ-9) prior to ART initiation and 24 weeks later. Of 452 participants, 406 (90%) …
Individual Differences in CD4/CD8 T-Cell Ratio Trajectories and Associated Risk Profiles Modeled From Acute HIV Infection
OBJECTIVE: We examined individual differences in CD4/CD8 T-cell ratio trajectories and associated risk profiles from acute HIV infection (AHI) through 144 weeks of antiretroviral therapy (ART) using a data-driven approach. METHODS: A total of 483 AHI participants began ART during Fiebig I-V and completed follow-up evaluations for 144 weeks. CD4+, CD8+, and CD4/CD8 T-cell ratio trajectories were defined followed by analyses to identify associated …
The relationship between sexual and gender stigma and difficulty accessing primary and mental healthcare services among LGBTQI+ populations in Thailand
Sexual and gender stigma is a known contributor to population health inequities; however, its impact on healthcare access among sexual and gender minorities (SGM) in Thailand is understudied. Therefore, we sought to examine the level of SGM stigma and its impact on self-reported difficulty accessing primary and mental healthcare services among a nationally recruited sample of lesbian, gay, bisexual, transgender, queer, intersex, and other gender …
Prevalence and the associated factors of hepatitis B and hepatitis C viral infections among HIV-positive individuals in same-day antiretroviral therapy initiation program in Bangkok, Thailand
Around 5-10% of newly diagnosed PWH in Bangkok had hepatitis B viral infection after 25 years of universal vaccination. Anti-HCV positivity was found in 4-5% of PWH who were MSM and TGW. As World Health Organization and Thailand national guidelines already support routine screening of hepatitis B and C viral infections in PWH and populations at increased risk of HIV including MSM and TGW, healthcare providers should reinforce this strategy and pr…
Attitudes About Analytic Treatment Interruption (ATI) in HIV Remission Trials with Different Antiretroviral Therapy (ART) Resumption Criteria
Medicine (33 works) · HIV/AIDS Research and Interventions (31 works) · HIV, Drug Use, Sexual Risk (21 works) · Family medicine (18 works) · Men who have sex with men (17 works) · Demography (16 works) · Psychology (15 works) · Public health (14 works) · Human immunodeficiency virus (HIV (13 works) · Internal Medicine (13 works)