“…The emerging literature of implementation science, as applied within the field of biomedical HIV prevention [7,8], emphasizes the need for a critical, formative understanding of multiple determinants across the socio-ecological (e.g., personal, social, community, structural) levels that can guide implementation of LAI-PrEP. In a systematic review synthesizing determinants of PrEP implementation [8], frequent barriers included factors across socio-ecological levels: (a) at the personal level -lack of PrEP awareness and knowledge, adherence challenges to daily medication over time, and concerns about side effects and interactions with other medications such as gender-affirming hormones [9][10][11][12]; (b) at the interpersonal level -discomfort talking to providers about PrEP, provider's lack of knowledge or support of PrEP, and having mistrust of providers [13][14][15]; (c) at the social level -lack of partner support for taking PrEP, and lack of communication about health issues and PrEP among community members [14,16,17], including PrEP discussion among trans friends and providers [15]; and (d) at the structural level -having segregated or fragmented health care systems, concern about paying for PrEP including out-ofpocket costs for necessary labs and visit copays, frequency of required clinic visits, stigma and discriminatory practices and policies related to PrEP, HIV, transgender identity, and sexual behavior, as well structural determinants such as poverty, unemployment, unstable housing [14,[16][17][18][19]. Moreover, while the Philippines is considered one of the most socially tolerant countries for lesbian, gay, bisexual, and transgender (LGBT) people compared to other neighboring countries in the Southeast Asian region [20], its policies and laws continue to reflect transphobia, sexual conservatism, and highly influenced by pervasive religious fundamentalist hegemony [21][22][23], with 81% of the country's population being affiliated with Catholicism [24].…”