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adverse reactions
6 ADVERSE REACTIONS The following adverse reactions are discussed in other sections of the labeling: Serious Injection Site Reactions with Improper Administration [see Warnings and Precautions (5.4) ]. Most common adverse reactions (incidence greater than or equal to 5%, all grades) are injection site reactions, headache, and nausea. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Gilead Sciences, Inc. at 1-800-GILEAD-5 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The primary safety assessment of YEZTUGO is based on data from two randomized, double-blind, active-controlled trials, PURPOSE 1 and PURPOSE 2, in which a total of 8616 adult and adolescent participants received YEZTUGO (N=4323), DESCOVY (emtricitabine [FTC]/tenofovir alafenamide [TAF]; N=2135) once daily, or TRUVADA (FTC/tenofovir disoproxil fumarate [TDF]; N=2158) once daily for HIV-1 PrEP. In PURPOSE 1, the median duration of exposure to YEZTUGO, DESCOVY, and TRUVADA was 43, 42, and 41 weeks, respectively. In PURPOSE 2, the median duration of exposure to both YEZTUGO and TRUVADA was 39 weeks. The most common adverse reactions (all Grades) reported in at least 5% of participants receiving YEZTUGO in either PURPOSE 1 or PURPOSE 2 were injection site reactions, headache, and nausea. In PURPOSE 1, <1% of participants in the groups receiving YEZTUGO, DESCOVY or TRUVADA, discontinued due to adverse events (all causality). In PURPOSE 2, 1% of participants in the group receiving YEZTUGO and <1% of participants receiving TRUVADA discontinued due to adverse events (all causality). Table 6 presents the frequency of adverse reactions (all Grades) in at least 2% of participants receiving YEZTUGO in either PURPOSE 1 or PURPOSE 2. Table 6. Adverse Drug Reactions (All Grades) Reported in ≥2% Frequencies of adverse reactions are based on all adverse events attributed to study drug (or to the procedure for injection site reactions) by the investigator. of Participants Receiving YEZTUGO in PURPOSE 1 or PURPOSE 2 PURPOSE 1 PURPOSE 2 Adverse Reaction YEZTUGO N=2140 TRUVADA Participants received placebo subcutaneous injections (polyethylene glycol 400). N=1070 YEZTUGO N=2183 TRUVADA N=1088 Injection Site Reactions 69% 34% 83% 69% Headache 7% 8% 2% 2% Nausea 5% 11% 2% 4% Dizziness 4% 6% <1% 1% Vomiting 4% 7% <1% 1% Diarrhea 4% 4% 2% 2% Injection-Associated Adverse Reactions Local Injection Site Reactions (ISRs) The most frequent adverse reactions associated with lenacapavir injection for subcutaneous use in PURPOSE 1 and PURPOSE 2 were ISRs. The most commonly reported ISRs (all grades) in at least 2% of participants who received YEZTUGO in either PURPOSE 1 or PURPOSE 2 are presented in Table 7 . PURPOSE 1 In PURPOSE 1, 69% of participants receiving YEZTUGO experienced ISRs, compared to 35% of participants receiving placebo injections (and DESCOVY or TRUVADA). Most participants who received YEZTUGO had mild (Grade 1, 50%) or moderate (Grade 2, 19%) severity ISRs. Grade 3 ISRs were reported in 4 (0.2%) participants, and included ulcer and nodule. YEZTUGO was discontinued due to ISRs in 4 (0.2%) participants. None of the ISRs were serious. The incidence of reported ISRs decreased with subsequent injections. Nodules: Injection site nodule was reported in 64% of participants who received YEZTUGO and resolved more slowly than other ISRs. The median duration of nodules associated with the first injections of YEZTUGO was 350 (interquartile range: 182, 470) days. The median of the maximum observed nodule diameter from each participant was 3.0 (interquartile range: 2.0, 3.5) cm. Other ISRs: The other ISRs reported in more than 2% of participants who received YEZTUGO were pain (31%), swelling (4%), induration (4%), and pruritus (2%). The median duration of induration, which resolved more slowly than most other ISRs, was 173 (interquartile range: 22, 267) days. The median duration of ISRs, excluding nodules and indurations, was 9 (interquartile range: 4 to 30) days. PURPOSE 2 In PURPOSE 2, 83% of participants receiving YEZTUGO experienced ISRs, compared to 69% of participants receiving placebo injections (and TRUVADA). Most participants had mild (Grade 1, 66%) or moderate (Grade 2, 17%) severity ISRs. Grade 3 ISRs were reported in 14 (0.6%) participants, and included ulcer, pain, erythema, edema, and dermatitis. YEZTUGO was discontinued due to ISRs in 26 (1.2%) participants. None of the ISRs were serious. The incidence of reported ISRs decreased with subsequent injections. Nodules: Injection site nodule was reported in 63% of participants who received YEZTUGO and resolved more slowly than other ISRs. The median duration of nodules associated with the first injections of YEZTUGO was 297 (interquartile range: 176, 423) days. The median of the maximum observed nodule diameter for each participant was 3.0 (interquartile range: 2.0, 4.0) cm. Other ISRs: The other ISRs reported in more than 2% of participants who received YEZTUGO were pain (56%), erythema (17%), induration (16%), swelling (7%), bruising (3%), pruritus (3%), and warmth (2%). The median duration of induration, which resolved more slowly than most other ISRs, was 151 (interquartile range: 15, 267) days. The median duration of ISRs, excluding nodules and indurations, was 4 (interquartile range: 2 to 8) days. Table 7. Injection Site Reactions (All Grades) Reported in ≥2% Frequencies are based on all injection site reactions attributed to study drug (or to the procedure) by the investigator. of Participants Receiving YEZTUGO in PURPOSE 1 or PURPOSE 2 PURPOSE 1 PURPOSE 2 Injection Site Reactions YEZTUGO N=2140 DESCOVY or TRUVADA Participants received placebo subcutaneous injections (polyethylene glycol 400). N=3205 YEZTUGO N=2183 TRUVADA N=1088 Nodule 64% 17% 63% 39% Pain 31% 24% 56% 53% Induration 4% <1% 16% 10% Swelling 4% 5% 7% 10% Pruritus 2% 1% 3% 3% Erythema 1% 1% 17% 19% Bruising <1% <1% 3% 4% Warmth <1% <1% 2% 2% Nodules and Indurations Dermatopathology In a separate clinical trial (CAPELLA) in participants with HIV-1 who received lenacapavir via subcutaneous injection, skin biopsies of injection site nodules or indurations revealed dermatopathological findings of foreign body inflammation or granulomatous response in some participants.