Attachment 1: Product information for AusPAR Odefsey Gilead Sciences Pty Ltd PM-2015-02479-1-2 Final 12 October 2017. This Product Information was approved at the time this AusPAR was published. Product Information ODEFSEY® (emtricitabine/rilpivirine/tenofovir alafenamide) tablets NAME OF THE MEDICINE ODEFSEY (200 mg emtricitabine/25 mg rilpivirine/25 mg tenofovir alafenamide) tablets for oral use. The drug substances in ODEFSEY tablets are emtricitabine (FTC), rilpivirine hydrochloride (RPV) and tenofovir alafenamide (TAF) fumarate. EMTRIVA® is the brand name for FTC, a synthetic nucleoside analog of cytidine. EDURANT ® is the brand name for RPV, a non-nucleoside reverse transcriptase inhibitor. TAF is converted in vivo to tenofovir, an acyclic nucleoside phosphonate (nucleotide) analog of adenosine 5′- monophosphate. Emtricitabine: The chemical name of FTC is 5-fluoro-1-(2R,5S)-[2-(hydroxymethyl)-1,3- oxathiolan-5-yl]cytosine. FTC is the (-) enantiomer of a thio analog of cytidine, which differs from other cytidine analogs in that it has a fluorine in the 5-position. It has a molecular formula of C8H10FN3O3S and a molecular weight of 247.2. It has the following structural formula: H2N N O N O F OH S CAS registry number: 143491-57-0 FTC is a white to off-white powder with a solubility of approximately 112 mg/mL in water at 25 oC. The partition coefficient (log p) for FTC is -0.43 and the pKa is 2.65. Rilpivirine: RPV is available as the hydrochloride salt. The chemical name for RPV hydrochloride is 4-[[4-[[4-[(E)-2-cyanoethenyl]-2,6-dimethylphenyl]amino]-2-pyrimidinyl] amino]benzonitrile monohydrochloride. Its molecular formula is C22H18N6●HCl and its molecular weight is 402.88. RPV hydrochloride has the following structural formula: H H N N N N HCl N NC C CAS registry number: 700361-47-3 RPV hydrochloride is a white to almost white powder. RPV hydrochloride is practically insoluble in water and over a wide pH range. Tenofovir alafenamide: TAF fumarate is the drug substance. The chemical name of TAF fumarate is L--Alanine, N-[(S)-[[(1R)-2-(6-amino-9H-purin-9-yl)-1- methylethoxy]methyl]phenoxyphosphinyl]-, 1-methylethyl ester, (2E)-2-butenedioate (2:1). It has a molecular formula of C23H31O7N6P and a molecular weight of 534.5. It has the following structural formula: Attachment 1: Product information for AusPAR Odefsey Gilead Sciences Pty Ltd PM-2015-02479-1-2 Final 12 October 2017. This Product Information was approved at the time this AusPAR was published. CAS registry number for tenofovir alafenamide: 379270-37-8 CAS registry number for tenofovir alafenamide fumarate: 1392275-56-7 TAF fumarate is a white to off-white or tan powder with a solubility of 4.7 mg per mL in water at 20 °C. DESCRIPTION ODEFSEY tablets contain the following ingredients as excipients: Tablet core: lactose, –microcrystalline cellulose, povidone, Polysorbate 20, croscarmellose sodium, and magnesium stearate. Film-coating: polyvinyl alcohol (E1203), titanium dioxide (E171), polyethylene glycol, talc (E553b), and iron oxide black (E172). Each ODEFSEY tablet is capsule shaped, film-coated and gray in colour. Each tablet is debossed with ‘GSI’ on one side and the number “255” on the other side. The tablets are supplied in bottles with child resistant closures. PHARMACOLOGY Pharmacotherapeutic group: Antivirals for treatment of HIV infections, combinations, ATC code: J05AR19. Mechanism of action ODEFSEY is a fixed dose combination of antiretroviral drugs FTC, RPV, and TAF. Emtricitabine: a synthetic nucleoside analogue of cytidine, is phosphorylated by cellular enzymes to form FTC 5'-triphosphate. FTC 5'-triphosphate inhibits the activity of the HIV-1 reverse transcriptase (RT) by competing with the natural substrate 2’-deoxycytidine 5'- triphosphate by being incorporated into nascent viral DNA which results in chain termination. FTC 5′-triphosphate is a weak inhibitor of mammalian DNA polymerases a, b, e and mitochondrial DNA polymerase g. Rilpivirine: RPV is a diarylpyrimidine non-nucleoside reverse transcriptase inhibitor (NNRTI) of HIV-1. RPV activity is mediated by non-competitive inhibition of HIV-1 reverse transcriptase. RPV does not inhibit the human cellular DNA polymerase α, β, and mitochondrial DNA polymerase γ. Tenofovir alafenamide: TAF is a phosphonamidate prodrug of tenofovir (2’-deoxyadenosine monophosphate analogue). TAF is permeable into cells, and due to increased plasma stability and intracellular activation through hydrolysis by cathepsin A, TAF is more efficient than tenofovir disoproxil fumarate (TDF) in loading tenofovir into peripheral blood mononuclear cells (PBMCs) including lymphocytes and macrophages. Intracellular tenofovir is subsequently phosphorylated to the pharmacologically active metabolite tenofovir diphosphate. Tenofovir diphosphate inhibits Attachment 1: Product information for AusPAR Odefsey Gilead Sciences Pty Ltd PM-2015-02479-1-2 Final 12 October 2017. This Product Information was approved at the time this AusPAR was published. HIV replication through incorporation into viral DNA by the HIV reverse transcriptase, which results in DNA chain-termination. Tenofovir has activity that is specific to human immunodeficiency virus (HIV-1 and HIV-2) and hepatitis B virus (HBV). In vitro studies have shown that both FTC and tenofovir can be fully phosphorylated when combined in cells. Tenofovir diphosphate is a weak inhibitor of mammalian DNA polymerases that include mitochondrial DNA polymerase γ and there is no evidence of toxicity to mitochondria in vitro. Antiviral activity in vitro Emtricitabine: The in vitro antiviral activity of FTC against laboratory and clinical isolates of HIV was assessed in lymphoblastoid cell lines, the MAGI-CCR5 cell line, and peripheral blood mononuclear cells. The IC50 value for FTC was in the range of 0.0013 to 0.64 µM (0.0003 to 0.158 µg/mL). In drug combination studies of FTC with NRTIs (abacavir, 3TC, d4T, zalcitabine, AZT), NNRTIs (delavirdine, efavirenz, nevirapine), and protease inhibitors (PI) (amprenavir, nelfinavir, ritonavir, saquinavir), additive to synergistic effects were observed. FTC displayed antiviral activity in vitro against HIV-1 clades A, C, D, E, F, and G (IC50 values ranged from 0.007 to 0.075 mM) and showed strain specific activity against HIV-2 (IC50 values ranged from 0.007 to 1.5 mM). Rilpivirine: RPV exhibited activity against laboratory strains of wild-type HIV-1 in an acutely infected T-cell line with a median 50% effective concentration (EC50) value for HIV-1/IIIB of 0.73 nM. Although RPV demonstrated limited in vitro activity against HIV-2 with EC50 values ranging from 2510 to 10830 nM, treatment of HIV-2 infection with RPV is not recommended in the absence of clinical data. RPV demonstrated antiviral activity against a broad panel of HIV- 1 group M (subtype A, B, C, D, F, G, H) primary isolates with EC50 values ranging from 0.07 to 1.01 nM and group O primary isolates with EC50 values ranging from 2.88 to 8.45 nM. RPV showed additive to synergistic antiviral activity in combination with the N(t)RTIs abacavir, didanosine, emtricitabine, 3TC, d4T, tenofovir, and AZT; the PIs amprenavir, atazanavir, darunavir, indinavir, lopinavir, nelfinavir, ritonavir, saquinavir and tipranavir; the NNRTIs efavirenz, etravirine and nevirapine; the fusion inhibitor enfuvirtide; the entry inhibitor maraviroc; and the integrase inhibitor raltegravir. Tenofovir alafenamide: The antiviral activity of TAF against laboratory and clinical isolates of HIV-1 subtype B was assessed in lymphoblastoid cell lines, PBMCs, primary monocyte/macrophage cells and CD4-T lymphocytes. The EC50 values for TAF were in the range of 2.0 to 14.7 nM. TAF displayed antiviral activity in cell culture against all HIV-1 groups (M, N, O), including sub-types A, B, C, D, E, F, and G (EC50 values ranged from 0.10 to 12.0 nM) and strain specific activity against HIV-2 (EC50 values ranged from 0.91 to 2.63 nM). In a study of TAF with a broad panel of representatives from the major classes of approved anti-HIV agents (NRTIs, NNRTIs, INSTIs, and PIs), additive to synergistic effects were observed. No antagonism was observed for these combinations. Drug Resistance In Cell Culture: Emtricitabine: FTC-resistant isolates of HIV-1 have been selected in vitro. Genotypic analysis of these isolates showed that the reduced susceptibility to FTC was associated with a mutation in the HIV-1 RT gene at codon 184 which resulted in an amino acid substitution of methionine by valine or isoleucine (M184V/I). Attachment 1: Product information for AusPAR Odefsey Gilead Sciences Pty Ltd PM-2015-02479-1-2 Final 12 October 2017. This Product Information was approved at the time this AusPAR was published. Rilpivirine: RPV-resistant strains were selected in cell culture starting from wild-type HIV-1 of different origins and subtypes as well as NNRTI-resistant HIV-1. The most commonly observed amino acid substitutions that emerged included: L100I, K101E, V108I, E138K, V179F, Y181C, H221Y, F227C, and M230I. Tenofovir Alafenamide: HIV-1 isolates with reduced susceptibility to TAF have been selected in cell culture. HIV-1 isolates selected by TAF expressed a K65R mutation in HIV-1 RT; in addition, a K70E mutation in HIV-1 RT has been transiently observed. HIV-1 isolates with the K65R mutation have low-level reduced susceptibility to abacavir, FTC, tenofovir, and lamivudine. In vitro drug resistance selection studies with TAF have shown no development of high-level resistance after extended culture. In Clinical Studies: In Treatment-Naïve Patients: Emtricitabine and Tenofovir Alafenamide In a pooled analysis of antiretroviral-naïve patients receiving FTC+TAF given with EVG+COBI as a fixed-dose combination tablet in Phase 3 Studies GS-US-292-0104 (0104), GS-US-292-0111 (0111), genotyping was performed on plasma HIV-1 isolates from all patients with HIV-1 RNA >400 copies/mL at confirmed virologic failure, at Week 96, or at time of early study drug discontinuation.