A Double-Blind, Randomized, Placebo-Controlled Clinical Trial of Combination HIV-Specific Broadly Neutralizing Monoclonal Antibodies Combined With ART Initiation During Acute HIV Infection to Induce HIV Remission

A5388 is a phase II, two-arm, randomized, double-blind, placebo-controlled study that will enroll 48 antiretroviral therapy (ART)-naïve adults with acute HIV infection (AHI) in order to determine whether:
Administration of combination HIV-specific broadly neutralizing antibody (bNAb) therapy in addition to ART during acute HIV infection (AHI) will be safe.
Participants who receive combination bNAb therapy in addition to ART during AHI will be more likely to demonstrate a delay in time to HIV-1 RNA ≥1,000 copies/mL for 4 consecutive weeks compared to participants who receive placebo plus ART.
Participants who receive combination bNAb therapy in addition to ART during AHI will demonstrate lower viral reservoirs and enhanced HIV-specific immunity compared to participants who receive placebo plus ART.

Start Date15 Jun 2024

Sponsor / Collaborator

National Institute of Allergy & Infectious Diseases

NCT05890963 / RecruitingPhase 1IIT

Phase 1b Single Dose Clinical Trial of a Novel Long-Acting Bispecific Antibody in People With HIV to Inform Development for HIV Pre- and Post-Exposure Prophylaxis

This is an open-label phase 1b clinical trial enrolling people living with HIV (PLWH) who are antiretroviral therapy (ART)-naïve or have not been on ART for > 24 weeks. This study will enroll PLWH to assess the safety, tolerability, and antiviral effect of bispecific and long-acting bNAbs, alone and in combination. The study will be conducted as a single center study at National Institute for Medical Research-Mbeya Medical Research Center (NIMR-MMRC) in Mbeya, Tanzania.
20 PLWH will be sequentially enrolled into one of 5 arms, each arm comprised of 4 participants. Sequential enrollment will occur in the following order:
Arm 1 will receive standard daily oral ART.
Arm 2 will receive a single dose of 10E8.4/iMab 600mg intravenous injection (IV).
Arm 3 will receive a single dose of 10E8.4/iMab 600mg intramuscular injection (IM).
Arm 4 will receive a single dose of 10E8.4/iMab 1800mg IV.
Arm 5 will receive a single dose of combination therapy with both 10E8.4/iMab 1800mg IV and VRC07-523LS 1200mg IV.

Start Date28 Nov 2023

Sponsor / Collaborator

The Henry M. Jackson Foundation

[+1]

NCT05769569 / WithdrawnPhase 1IIT

Safety and Efficacy of Broadly Neutralizing Antibodies Followed by Innate Immune Stimulation and Therapeutic Vaccination for the Induction of HIV Remission

This is a phase I, randomized, open-label trial to investigate the safety of VRC07-523LS, PGDM1400LS and N-803 in combination with Ad26.Mos4.HIV, MVA-Bavarian Nordic (BN)-HIV and A244d11gp120/ALFQ vaccination, and the impact on time to sustained viral rebound of ≥1000 copies/mL for 4 consecutive weeks during analytic treatment interruption (ATI) in people living with human immunodeficiency virus-1 (HIV-1, PLWH) who initiated antiretroviral therapy (ART) during acute HIV-1 infection (AHI).

Start Date01 Sep 2023

Sponsor / Collaborator

The Henry M. Jackson Foundation

[+1]

100 Clinical Results associated with VRC-07-523

100 Translational Medicine associated with VRC-07-523

100 Patents (Medical) associated with VRC-07-523

Literatures (Medical) associated with VRC-07-523

31 Dec 2023·mAbs

Improved pharmacokinetics of HIV-neutralizing VRC01-class antibodies achieved by reduction of net positive charge on variable domain

Article

Author: Zhang, Baoshan ; Yang, Eun Sung ; Louder, Mark K ; Schaub, Andrew J ; Bender, Michael F ; Lusso, Paolo ; McKee, Krisha ; Pegu, Amarendra ; Liu, Qingbo ; Asokan, Mangaiarkarasi ; Kwong, Peter D ; Rawi, Reda ; Shen, Chen-Hsiang ; Kwon, Young D ; Mascola, John R ; Liu, Tracy ; Reveiz, Mateo ; Lin, Bob C ; Doria-Rose, Nicole A

The amino-acid composition of the immunoglobulin variable region has been observed to impact antibody pharmacokinetics (PK). Here, we sought to improve the PK of the broad HIV-1-neutralizing VRC01-class antibodies, VRC07-523LS and N6LS, by reducing the net positive charge in their variable domains. We used a structure-guided approach to generate a panel of antibody variants incorporating select Arg or Lys substituted to Asp, Gln, Glu, or Ser. The engineered variants exhibited reduced affinity to heparin, reduced polyreactivity, and improved PK in human FcRn-transgenic mice. One variant, VRC07-523LS.v34, with three charge substitutions, had an observed in vivo half-life and an estimated human half-life of 10.8 and 60 days, respectively (versus 5.4 and 38 days for VRC07-523LS) and retained functionality, neutralizing 92% of a 208-strain panel at a geometric mean IC₈₀ <1 µg/mL. Another variant, N6LS.C49, with two charge substitutions, had an observed in vivo half-life and an estimated human half-life of 14.5 and 80 days (versus 9.0 and 44 days for N6LS) and neutralized ~80% of 208 strains at a geometric mean IC₈₀ <1 µg/mL. Since Arg and Lys residues are prevalent in human antibodies, we propose substitution of select Arg or Lys with Asp, Gln, Glu, or Ser in the framework region as a general means to improve PK of therapeutic antibodies.

01 Oct 2023·The lancet. HIV

Safety, tolerability, pharmacokinetics, and immunological activity of dual-combinations and triple-combinations of anti-HIV monoclonal antibodies PGT121, PGDM1400, 10-1074, and VRC07-523LS administered intravenously to HIV-uninfected adults: a phase 1 randomised trial

Article

Author: Yu, Chenchen ; Yacovone, Margaret ; Theodore, Deborah A ; Tomaras, Georgia D ; Barouch, Dan H ; Gama, Lucio ; Caskey, Marina ; Montefiori, David ; Stephenson, Kathryn ; Gamble, Theresa ; Eaton, Amanda ; Seaton, Kelly E ; Mannheimer, Sharon ; Paez, Carmen A ; Sobieszczyk, Magdalena E ; Julg, Boris ; Huang, Yunda ; Chege, Wairimu ; Zhang, Lily ; Hanscom, Brett ; Ackerman, Margaret E ; Weiner, Joshua A ; Nussenzweig, Michel ; Mayer, Kenneth ; Kalams, Spyros ; Miner, Maurine D ; Heptinstall, Jack

BACKGROUND:

Preclinical and clinical studies suggest that combinations of broadly neutralising antibodies (bnAbs) targeting different HIV envelope epitopes might be required for sufficient prevention of infection. We aimed to evaluate the dual and triple anti-HIV bnAb combinations of PGDM1400 (V2 Apex), PGT121 (V3 glycan), 10-1074 (V3 glycan), and VRC07-523LS (CD4 binding site).

METHODS:

In this phase 1 trial (HVTN 130/HPTN 089), adults without HIV were randomly assigned (1:1:1) to three dual-bnAb treatment groups simultaneously, or the triple-bnAb group, receiving 20 mg/kg of each antibody administered intravenously at four centres in the USA. Participants received a single dose of PGT121 + VRC07-523LS (treatment one; n=6), PGDM1400 + VRC07-523LS (treatment two; n=6), or 10-1074 + VRC07-523LS (treatment three; n=6), and two doses of PGDM1400 + PGT121 + VRC07-523LS (treatment four; n=9). Primary outcomes were safety, pharmacokinetics, and neutralising activity. Safety was determined by monitoring for 60 min after infusions and throughout the study by collecting laboratory assessments (ie, blood count, chemistry, urinalysis, and HIV), and solicited and unsolicited adverse events (via case report forms and participant diaries). Serum concentrations of each bnAb were measured by binding antibody assays on days 0, 3, 6, 14, 28, 56, 112, 168, 224, 280, and 336, and by serum neutralisation titres against Env-pseudotyped viruses on days 0, 3, 28, 56, and 112. Pharmacokinetic parameters were estimated by use of two-compartment population pharmacokinetic models; combination bnAb neutralisation titres were directly measured and assessed with different interaction models. This trial is registered with ClinicalTrials.gov, NCT03928821, and has been completed.

FINDINGS:

27 participants were enrolled from July 31, to Dec 20, 2019. The median age was 26 years (range 19-50), 16 (58%) of 27 participants were assigned female sex at birth, and 24 (89%) participants were non-Hispanic White. Infusions were safe and well tolerated. There were no statistically significant differences in pharmacokinetic patterns between the dual and triple combinations of PGT121, PGDM1400, and VRC07-523LS. The median estimated elimination half-lives of PGT121, PGDM1400, 10-1074, and VRC07-523LS were 32·2, 25·4, 27·5, and 52·9 days, respectively. Neutralisation coverage against a panel of 12 viruses was greater in the triple-bnAb versus dual-bnAb groups: area under the magnitude-breadth curve at day 28 was 3·1, 2·9, 3·0, and 3·4 for treatments one to four, respectively. The Bliss-Hill multiplicative interaction model, which assumes complementary neutralisation with no antagonism or synergism among the bnAbs, best described combination bnAb titres in the dual-bnAb and triple-bnAb groups.

INTERPRETATION:

No pharmacokinetic interactions among the bnAbs and no loss of complementary neutralisation were observed in the dual and triple combinations. This study lays the foundation for designing future combination bnAb HIV prevention efficacy trials.

FUNDING:

US National Institute of Allergy and Infectious Diseases, US National Institute on Drug Abuse, US National Institute of Mental Health, and the Eunice Kennedy Shriver National Institute of Child Health and Human Development.

28 Aug 2023·BMJ open

Extended safety and tolerability of subcutaneous CAP256V2LS and VRC07-523LS in HIV-negative women: study protocol for the randomised, placebo-controlled double-blinded, phase 2 CAPRISA 012C trial.

Article

Author: Myeni, Nqobile ; Samsunder, Natasha ; Radebe, Precious ; Gama, Lucio ; Osman, Farzana ; Morris, Lynn ; Archary, Derseree ; Mansoor, Leila ; Harkoo, Ishana ; Abdool Karim, Salim ; Koup, Richard A ; Pozzetto, Bruno ; Serebryannyy, Leonid ; Sikazwe, Izukanji T ; Carlton, Kevin ; Zuma, Nonhlanhla Yende ; Karim, Quarraisha Abdool ; Capparelli, Edmund ; Narpala, Sandeep ; Hankins, Catherine ; Potloane, Disebo ; Gengiah, Tanuja Narayansamy ; Garrett, Nigel ; Mahomed, Sharana ; Doria-Rose, Nicole ; Williamson, Carolyn ; Moore, Penny

INTRODUCTION:

Women-controlled HIV prevention technologies that overcome adherence challenges of available daily oral pre-exposure prophylaxis and give women a choice of options are urgently needed. Broadly neutralising monoclonal antibodies (bnAbs) administered passively may offer a valuable non-antiretroviral biological intervention for HIV prevention. Animal and human studies have demonstrated that bnAbs which neutralise HIV can prevent infection. The optimal plasma antibody concentrations to confer protection against HIV infection in humans is under intense study. The Centre for the AIDS Programme of Research in South Africa (CAPRISA) 012C trial will evaluate extended safety and pharmacokinetics of CAP256V2LS and VRC07-523LS among young HIV-negative South African and Zambian women. The study design also allows for an evaluation of a signal of HIV prevention efficacy.

METHODS AND ANALYSIS:

CAPRISA 012 is a series of trials with three distinct protocols. The completed CAPRISA 012A and 012B phase 1 trials provided critical data for the CAPRISA 012C trial, which is divided into parts A and B. In part A, 90 participants were randomised to receive both CAP256V2LS and VRC07-523LS at 20 mg/kg or placebo, subcutaneously every 16 or 24 weeks. Part B will enrol 900 participants in South Africa and Zambia who will be randomised in a 1:1 ratio and receive an initial loading dose of 1.2 g of CAP256V2LS and VRC07-523LS or placebo followed by 600 mg of CAP256V2LS and 1.2 g of VRC07-523LS or placebo subcutaneously every 6 months. Safety will be assessed by frequency and severity of reactogenicity and other related adverse events. Pharmacokinetics of both antibodies will be measured in systemic and mucosal compartments over time, while participants will be monitored for breakthrough HIV infections.

ETHICS AND DISSEMINATION OF STUDY FINDINGS:

The University of KwaZulu-Natal Biomedical Research Ethics Committee and South African Health Products Regulatory Authority have approved the trial (BREC/00002492/2021, SAHPRA20210317). Results will be disseminated through conference presentations, peer-reviewed publications and the clinical trial registry.

TRIAL REGISTRATION NUMBER:

PACTR202112683307570.

News (Medical) associated with VRC-07-523

28 Feb 2024

·www.biospace.com

ViiV Healthcare to present data for its next generation of ultra long-acting treatments for HIV

Other key data to be presented from ViiV Healthcare’s innovative pipeline and portfolio include the exploration of different mechanisms of action through broadly neutralising antibodies as well as real-world insights from established long-acting and 2-drug regimens LONDON--(BUSINESS WIRE)-- ViiV Healthcare, the global specialist HIV company majority owned by GSK, with Pfizer and Shionogi as shareholders, today announced the presentation of 64 abstracts that includes highlights of the company’s next-generation pipeline advancements, alongside data from its diverse portfolio of marketed HIV treatment and prevention options at the Conference on Retroviruses and Opportunistic Infections (CROI 2024) being held in Denver, Colorado, from 3 – 6 March 2024. Kimberly Smith, M.D., MPH, Head of Research & Development at ViiV Healthcare, said: “As leaders in developing long-acting injectables for the treatment of HIV, we’re excited to present new data setting the stage for ViiV’s next generation of medicines and demonstrating how key pipeline assets will target HIV in different ways. These findings, as well as the breadth of data we’ll present on our marketed products, including new interim results from the LATITUDE study, reflect a portfolio and future-looking pipeline focused on ending the HIV epidemic. We look forward to sharing them with the scientific and HIV communities at CROI 2024.” Key abstracts to be presented at CROI 2024 by ViiV Healthcare and its study partners will include: Data introducing our next generation of potential ultra long-acting medicines for HIV: ViiV Healthcare will share findings from a phase I study evaluating different formulations of cabotegravir and their potential for dosing every four months. The ongoing, open-label, single-dose, dose-escalation phase I study in 70 healthy adults assessed both the 200 mg/mL formulation of cabotegravir in combination with recombinant human hyaluronidase PH20 (rHuPH20), as well as a new formulation of cabotegravir (CAB ULA) administered by itself.1 Researchers will share safety and pharmacokinetic findings from both ultra long-acting approaches and their potential for future clinical development. Findings advancing different mechanisms of action in HIV research: New phase IIa findings from the BANNER study of VH3810109 (N6LS), an investigational, broadly neutralising antibody (bNAb), will be presented. Researchers will share findings of the bNAb administered intravenously and the first efficacy findings of its subcutaneous administration.2 Findings from the SPAN study of N6LS, examining the safety and tolerability of the highest subcutaneous and intravenous N6LS doses administered to date, with and without PH20, will also be presented.3 Additionally, efficacy and safety data from a non-ViiV owned bNAb asset, VRC07-523LS, in a phase II, open-label clinical trial used in combination with long-acting CAB for maintenance antiretroviral therapy (ART) will be presented.4 New data on long-acting therapy vs daily oral standard of care, in traditionally non-adherent populations: Interim analysis of the LATITUDE phase III trial will be presented showing that, the injectable antiretroviral treatment for HIV, Cabenuva (cabotegravir and rilpivirine [CAB+RPV LA]), demonstrates superior efficacy compared to daily oral standard of care (SOC) in individuals with a history of antiretroviral adherence challenges. The NIAID/ACTG also announced a modification to the study, where further randomisation has been stopped and participants in the SOC arm are being given the option to switch to the long-acting therapy arm.5 Real-world evidence from across our treatment and prevention portfolios: New findings from SEARCH, a randomised study evaluating the real-world impact of the inclusion of long-acting cabotegravir for PrEP in an HIV prevention coverage package compared to the standard-of-care of oral PrEP and PEP alone in rural Uganda and Kenya, will also be presented.6 Real-world evidence findings for the complete long-acting HIV treatment regimen Cabenuva will be presented from the OPERA cohort examining ART-experienced, virally suppressed adults living with HIV who switched to CAB+RPV LA or to an oral regimen.7 Findings for the 2-drug regimen, Dovato (dolutegravir, lamivudine [DTG/3TC]), will include the InfCare HIV study, which presents three-year switch data, from 3-drug regimen to Dovato, in a long-term real-world Swedish cohort.8 This study adds to the body of real-world evidence to date that includes more than 40,000 people living with HIV.9 Here is a list of ViiV Healthcare-sponsored or supported studies to be presented at CROI 2024: Title First Author Presentation Number Presentation Dolutegravir A single once-daily ABC/DTG/3TC tablet predicts safe and effective exposures in children 3 to <6kg H. Chandasana 02770 Poster Tuesday, March 5 2:30-4:00pm MST Population pharmacokinetics of ABC/DTG/3TC FDC to support dosing in peds with HIV-1 (IMPAACT 2019) H. Chandasana 03110 Poster Tuesday, March 5:30-4:00pm MST Dolutegravir and growth in pediatric populations with HIV-1: IMPAACT P1093 and IMPAACT 2019 M. McKenna 01783 Poster Tuesday, March 5 2:30-4:00pm MST Switching to DTG+3TC vs 3-drug regimens in routine clinical care: long-term Swedish data E. Sörstedt 01838 Poster Tuesday, March 5 2:30-4:00pm MST Temporal trends of cardiovascular disease incidence in people with HIV from 2001-2021 N. Jaschinski 02263 Poster Tuesday, March 5 2:30-4:00pm MST Increased cancer risk with low CD4 counts persists despite over 2 years of virological suppression J. Hoy 01462 Poster Wednesday, March 6 2:30-4:00pm MST Cabotegravir for Treatment Long-acting Injectable CAB/RPV is Superior to Oral ART in PWH with adherence challenges: ACTG A5359 A. Rana 03579 Oral Wednesday, March 6 12:51-1:00pm MST Real-world utilization of cabotegravir + rilpivirine in the US: data from Trio Health cohort J. J. Eron 01374 Poster Monday, March 4 2:30-4:00pm MST Real-world effectiveness of cabotegravir + rilpivirine vs. standard of care oral regimens in the US R. K. Hsu 01952 Poster Monday, March 4 2:30-4:00pm MST HIV-1 RNA blips and low-level viral replication: SOLAR (CAB+RPV LA vs. BIC/FTC/TAF) C. Latham 00138 Poster Monday, March 4 2:30-4:00pm MST Model based comparison of cabotegravir pharmacokinetics following thigh and gluteal injections K. Han 03157 Poster Wednesday, March 6 2:30-4:00pm MST Cabotegravir for PrEP SEARCH Randomized trial of Dynamic Choice HIV Prevention including injectable cabotegravir (CAB-LA) J. Kabami 03405 Late-Breaker Oral Tuesday, March 5 10:00-12:00pm MST Pre-exposure prophylaxis with cabotegravir long-acting injectable in the OPERA cohort A. Mills 01400 Poster Monday, March 4 2:30-4:00pm MST Real-world use of cabotegravir long acting for pre-exposure prophylaxis: TRIO cohort K. Mayer 01907 Poster Monday, March 4 2:30-4:00pm MST Cabotegravir PopPK analysis of adults and adolescents living with HIV or at risk for HIV receiving PrEP Y. Lin 03038 Poster Tuesday, March 5 2:30-4:00pm MST Interest in long-acting injectable PrEP among transgender women in the United States E. E. Cooney 00621 Poster Wednesday, March 6 2:30-4:00pm MST Healthcare staff acceptability and feasibility of telehealth delivery of cabotegravir for PrEP A. Liu 03080 Poster Wednesday, March 6 2:30-4:00pm MST Fostemsavir Temsavir treatment enhances bNAb recognition and subsequent clearance of HIV-1 infected cells R. Ferris 02971 Poster Monday, March 4 2:30-4:00pm MST Pipeline: Ultra Long-Acting Cabotegravir Phase I study of cabotegravir long-acting injectable formulations supports ≥4-monthly dose interval K. Han 00251 Oral Monday, March 4 10:00-12:00pm MST Pipeline: Broadly Neutralising Antibodies VH3810109 (N6LS) in antiretroviral therapy–naive adults with HIV-1: phase IIa BANNER efficacy data P. Leone 01911 Oral Monday, March 4 10:00-12:00pm MST Safety and efficacy of VRC07-523LS plus long-acting cabotegravir in the phase 2 ACTG A5357 Trial B. Taiwo 02254 Oral Monday, March 4 10:00-12:00pm MST High-dose VH3810109 (N6LS) ± recombinant human hyaluronidase PH20: phase I SPAN study safety results B. Win 01988 Poster Wednesday, March 6 2:30-4:00pm MST Pipeline: Maturation Inhibitors Next-generation maturation inhibitor GSK3640254 showed broad spectrum potency without MI resistance B. McAuliffe 03095 Poster Wednesday, March 6 2:30-4:00pm MST The preclinical pro maturation inhibitor VH3739937 J. Jeffrey 02819 Poster Wednesday, March 6 2:30-4:00pm MST General HIV Resistance in young children newly diagnosed with HIV in Western Cape, South Africa K. Anderson 01012 Poster Tuesday, March 5 2:30-4:00pm MST DOVATO (dolutegravir and lamivudine) tablets INDICATION Dovato is indicated as a complete regimen to treat HIV-1 infection in adults with no antiretroviral (ARV) treatment history or to replace the current ARV regimen in those who are virologically suppressed (HIV-1 RNA <50 copies/mL) on a stable ARV regimen with no history of treatment failure and no known resistance to any component of Dovato. IMPORTANT SAFETY INFORMATION BOXED WARNING: PATIENTS CO-INFECTED WITH HEPATITIS B VIRUS (HBV) AND HIV-1: EMERGENCE OF LAMIVUDINE-RESISTANT HBV AND EXACERBATIONS OF HBV All patients with HIV-1 should be tested for the presence of HBV prior to or when initiating Dovato. Emergence of lamivudine-resistant HBV variants associated with lamivudine-containing antiretroviral regimens has been reported. If Dovato is used in patients co-infected with HIV-1 and HBV, additional treatment should be considered for appropriate treatment of chronic HBV; otherwise, consider an alternative regimen. Severe acute exacerbations of HBV have been reported in patients who are co-infected with HIV-1 and HBV and have discontinued lamivudine, a component of Dovato. Closely monitor hepatic function in these patients and, if appropriate, initiate anti-HBV treatment. CONTRAINDICATIONS Do not use Dovato in patients with previous hypersensitivity reaction to dolutegravir or lamivudine Do not use Dovato in patients receiving dofetilide WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: Hypersensitivity reactions have been reported with dolutegravir and were characterized by rash, constitutional findings, and sometimes organ dysfunction, including liver injury Discontinue Dovato immediately if signs or symptoms of severe skin or hypersensitivity reactions develop, as a delay in stopping treatment may result in a life-threatening reaction. Clinical status, including liver aminotransferases, should be monitored and appropriate therapy initiated Hepatotoxicity: Hepatic adverse events have been reported, including cases of hepatic toxicity (elevated serum liver biochemistries, hepatitis, and acute liver failure), in patients receiving a dolutegravir-containing regimen without pre-existing hepatic disease or other identifiable risk factors Patients with underlying hepatitis B or C or marked elevations in transaminases prior to treatment may be at increased risk for worsening or development of transaminase elevations with use of Dovato. In some cases, the elevations in transaminases were consistent with immune reconstitution syndrome or hepatitis B reactivation, particularly in the setting where anti-hepatitis therapy was withdrawn Monitoring for hepatotoxicity is recommended Embryo Fetal Toxicity: Assess the risks and benefits of Dovato and discuss with the patient to determine if an alternative treatment should be considered at the time of conception through the first trimester of pregnancy due to the risk of neural tube defects Pregnancy testing is recommended before initiation of Dovato. Individuals of childbearing potential should be counseled on the consistent use of effective contraception Lactic Acidosis and Severe Hepatomegaly With Steatosis: Fatal cases have been reported with the use of nucleoside analogs, including lamivudine. Discontinue Dovato if clinical or laboratory findings suggestive of lactic acidosis or pronounced hepatotoxicity develop, including hepatomegaly and steatosis in the absence of marked transaminase elevations. Adverse Reactions or Loss of Virologic Response Due to Drug Interactions with concomitant use of Dovato and other drugs may occur (see Contraindications and Drug interactions). Immune Reconstitution Syndrome, including the occurrence of autoimmune disorders with variable time to onset, has been reported with the use of Dovato. Adverse reactions The most common adverse reactions (incidence ≥2%, all grades) with Dovato were headache (3%), nausea (2%), diarrhea (2%), insomnia (2%), fatigue (2%), and anxiety (2%). Drug interactions Consult full Prescribing Information for Dovato for more information on potentially significant drug interactions Dovato is a complete regimen. Coadministration with other antiretroviral medications for the treatment of HIV-1 infection is not recommended Drugs that induce or inhibit CYP3A or UGT1A1 may affect the plasma concentrations of dolutegravir Administer Dovato 2 hours before or 6 hours after taking polyvalent cation-containing antacids or laxatives, sucralfate, oral supplements containing iron or calcium, or buffered medications. Alternatively, Dovato and supplements containing calcium or iron can be taken with food Use in specific populations Pregnancy: There are insufficient human data on the use of Dovato during pregnancy to definitively assess a drug-associated risk for birth defects and miscarriage. An Antiretroviral Pregnancy Registry has been established. Advise individuals of childbearing potential of the potential risk of neural tube defects. Assess the risks and benefits of Dovato and discuss with the patient to determine if an alternative treatment should be considered at the time of conception through the first trimester of pregnancy or if pregnancy is confirmed in the first trimester Lactation: Breastfeeding is not recommended due to the potential for HIV-1 transmission, developing viral resistance in HIV-positive infants, and adverse reactions in a breastfed infant Females and Males of Reproductive Potential: Pregnancy testing is recommended before initiation of Dovato. Counsel individuals of childbearing potential taking Dovato on the consistent use of effective contraception Renal Impairment: Dovato is not recommended for patients with creatinine clearance <30 mL/min. Patients with a sustained creatinine clearance between 30 and 49 mL/min should be monitored for hematologic toxicities, which may require a dosage adjustment of lamivudine as an individual component Hepatic Impairment: Dovato is not recommended in patients with severe hepatic impairment (Child-Pugh Score C) For more information, please see full US Prescribing Information for Dovato: https://gskpro.com/content/dam/global/hcpportal/en_US/Prescribing_Information/Dovato/pdf/DOVATO-PI-PIL.PDF CABENUVA (cabotegravir; rilpivirine) extended-release injectable suspensions INDICATION CABENUVA is indicated as a complete regimen for the treatment of HIV-1 infection in adults and adolescents 12 years of age and older and weighing at least 35 kg to replace the current antiretroviral regimen in those who are virologically suppressed (HIV-1 RNA <50 copies/mL) on a stable antiretroviral regimen with no history of treatment failure and with no known or suspected resistance to either cabotegravir or rilpivirine. IMPORTANT SAFETY INFORMATION CONTRAINDICATIONS Do not use CABENUVA in patients with previous hypersensitivity reaction to cabotegravir or rilpivirine Do not use CABENUVA in patients receiving carbamazepine, oxcarbazepine, phenobarbital, phenytoin, rifabutin, rifampin, rifapentine, systemic dexamethasone (>1 dose), and St John’s wort WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: Serious or severe hypersensitivity reactions have been reported in association with other integrase inhibitors and could occur with CABENUVA Hypersensitivity reactions, including cases of drug reaction with eosinophilia and systemic symptoms (DRESS), have been reported during postmarketing experience with rilpivirine-containing regimens. While some skin reactions were accompanied by constitutional symptoms such as fever, other skin reactions were associated with organ dysfunctions, including elevations in hepatic serum biochemistries Discontinue CABENUVA immediately if signs or symptoms of hypersensitivity reactions develop. Clinical status, including liver transaminases, should be monitored and appropriate therapy initiated. Cabotegravir and rilpivirine oral lead-in may be used to help identify patients who may be at risk of a hypersensitivity reaction Post-Injection Reactions: Serious post-injection reactions (reported in less than 1% of subjects) were reported within minutes after the injection of rilpivirine, including dyspnea, bronchospasm, agitation, abdominal cramping, rash/urticaria, dizziness, flushing, sweating, oral numbness, changes in blood pressure, and pain (e.g., back and chest). These events may have been associated with accidental intravenous administration and began to resolve within a few minutes after the injection Carefully follow the Instructions for Use when preparing and administering CABENUVA. The suspensions should be injected slowly via intramuscular injection and avoid accidental intravenous administration. Observe patients briefly (approximately 10 minutes) after the injection. If a post-injection reaction occurs, monitor and treat as clinically indicated Hepatotoxicity: Hepatotoxicity has been reported in patients receiving cabotegravir or rilpivirine with or without known pre-existing hepatic disease or identifiable risk factors Patients with underlying liver disease or marked elevations in transaminases prior to treatment may be at increased risk for worsening or development of transaminase elevations Monitoring of liver chemistries is recommended and treatment with CABENUVA should be discontinued if hepatotoxicity is suspected Depressive Disorders: Depressive disorders (including depressed mood, depression, major depression, mood altered, mood swings, dysphoria, negative thoughts, suicidal ideation, suicide attempt) have been reported with CABENUVA or the individual products Promptly evaluate patients with depressive symptoms Risk of Adverse Reactions or Loss of Virologic Response Due to Drug Interactions: The concomitant use of CABENUVA and other drugs may result in known or potentially significant drug interactions (see Contraindications and Drug Interactions) Rilpivirine doses 3 and 12 times higher than the recommended oral dosage can prolong the QTc interval CABENUVA should be used with caution in combination with drugs with a known risk of Torsade de Pointes Long-Acting Properties and Potential Associated Risks with CABENUVA: Residual concentrations of cabotegravir and rilpivirine may remain in the systemic circulation of patients for prolonged periods (up to 12 months or longer). Select appropriate patients who agree to the required monthly or every-2-month injection dosing schedule because non-adherence could lead to loss of virologic response and development of resistance To minimize the potential risk of developing viral resistance, it is essential to initiate an alternative, fully suppressive antiretroviral regimen no later than 1 month after the final injection doses of CABENUVA when dosed monthly and no later than 2 months after the final injections of CABENUVA when dosed every 2 months. If virologic failure is suspected, switch the patient to an alternative regimen as soon as possible ADVERSE REACTIONS The most common adverse reactions in adults (incidence ≥2%, all grades) treated with CABENUVA were injection site reactions, pyrexia, fatigue, headache, musculoskeletal pain, nausea, sleep disorders, dizziness, and rash The safety of CABENUVA in adolescents is expected to be similar to adults DRUG INTERACTIONS Refer to the applicable full Prescribing Information for important drug interactions with CABENUVA, VOCABRIA (cabotegravir), or EDURANT (rilpivirine) Because CABENUVA is a complete regimen, coadministration with other antiretroviral medications for the treatment of HIV-1 infection is not recommended Drugs that are strong inducers of UGT1A1 or UGT1A9 are expected to decrease the plasma concentrations of cabotegravir. Drugs that induce or inhibit CYP3A may affect the plasma concentrations of rilpivirine CABENUVA should be used with caution in combination with drugs with a known risk of Torsade de Pointes USE IN SPECIFIC POPULATIONS Pregnancy: There are insufficient human data on the use of CABENUVA during pregnancy to adequately assess a drug-associated risk for birth defects and miscarriage. Discuss the benefit-risk of using CABENUVA during pregnancy and conception and consider that cabotegravir and rilpivirine are detected in systemic circulation for up to 12 months or longer after discontinuing injections of CABENUVA. An Antiretroviral Pregnancy Registry has been established Lactation: Potential risks of breastfeeding include HIV-1 transmission, developing viral resistance in HIV-positive infants, and adverse reactions in a breastfed infant For more information, please see full US Prescribing Information for Cabenuva: APRETUDE (cabotegravir) extended-release injectable suspensions INDICATION APRETUDE is indicated in at-risk adults and adolescents weighing at least 35 kg for pre-exposure prophylaxis (PrEP) to reduce the risk of sexually acquired HIV-1 infection. Individuals must have a negative HIV-1 test prior to initiating APRETUDE (with or without an oral lead-in with oral cabotegravir) for HIV-1 PrEP. IMPORTANT SAFETY INFORMATION BOXED WARNING: RISK OF DRUG RESISTANCE WITH USE OF APRETUDE FOR HIV-1 PRE-EXPOSURE PROPHYLAXIS (PrEP) IN UNDIAGNOSED HIV-1 INFECTION Individuals must be tested for HIV-1 infection prior to initiating APRETUDE or oral cabotegravir, and with each subsequent injection of APRETUDE, using a test approved or cleared by the FDA for the diagnosis of acute or primary HIV-1 infection. Drug-resistant HIV-1 variants have been identified with use of APRETUDE by individuals with undiagnosed HIV-1 infection. Do not initiate APRETUDE for HIV-1 PrEP unless negative infection status is confirmed. Individuals who become infected with HIV-1 while receiving APRETUDE for PrEP must transition to a complete HIV-1 treatment regimen. CONTRAINDICATIONS Do not use APRETUDE in individuals: with unknown or positive HIV-1 status with previous hypersensitivity reaction to cabotegravir receiving carbamazepine, oxcarbazepine, phenobarbital, phenytoin, rifampin, and rifapentine WARNINGS AND PRECAUTIONS Comprehensive Management to Reduce the Risk of HIV-1 Infection: Use APRETUDE as part of a comprehensive prevention strategy, including adherence to the administration schedule and safer sex practices, including condoms, to reduce the risk of sexually transmitted infections (STIs). APRETUDE is not always effective in preventing HIV-1 acquisition. Risk for HIV-1 acquisition includes, but is not limited to, condomless sex, past or current STIs, self-identified HIV risk, having sexual partners of unknown HIV-1 viremic status, or sexual activity in a high prevalence area or network. Inform, counsel, and support individuals on the use of other prevention measures (e.g., consistent and correct condom use; knowledge of partner[s] HIV-1 status, including viral suppression status; regular testing for STIs) Use APRETUDE only in individuals confirmed to be HIV-1 negative. HIV-1 resistance substitutions may emerge in individuals with undiagnosed HIV-1 infection who are taking only APRETUDE, because APRETUDE alone does not constitute a complete regimen for HIV-1 treatment. Prior to initiating APRETUDE, ask seronegative individuals about recent (in past month) potential exposure events and evaluate for current or recent signs or symptoms consistent with acute HIV-1 infection (e.g., fever, fatigue, myalgia, skin rash). If recent (<1 month) exposures to HIV-1 are suspected or clinical symptoms consistent with acute HIV-1 infection are present, use a test approved or cleared by the FDA as an aid in the diagnosis of acute HIV-1 infection When using APRETUDE, HIV-1 testing should be repeated prior to each injection and upon diagnosis of any other STIs Additional HIV testing to determine HIV status is needed if an HIV-1 test indicates possible HIV-1 infection or if symptoms consistent with acute HIV-1 infection develop following an exposure event. If HIV-1 infection is confirmed, then transition the individual to a complete HIV-1 treatment Counsel HIV-1 uninfected individuals to strictly adhere to the recommended dosing and testing schedule for APRETUDE Potential Risk of Resistance with APRETUDE: There is a potential risk of developing resistance to APRETUDE if an individual acquires HIV-1 either before, while taking, or following discontinuation of APRETUDE. To minimize this risk, it is essential to clinically reassess individuals for risk of HIV-1 acquisition and to test before each injection to confirm HIV-1–negative status. Individuals who are confirmed to have HIV-1 infection must transition to a complete HIV-1 treatment. If individuals at continuing risk of HIV-1 acquisition discontinue APRETUDE, alternative forms of PrEP should be considered and initiated within 2 months of the final injection of APRETUDE Long-Acting Properties and Potential Associated Risks with APRETUDE: Residual concentrations of cabotegravir may remain in the systemic circulation of individuals for prolonged periods (up to 12 months or longer). Take the prolonged-release characteristics of cabotegravir into consideration and carefully select individuals who agree to the required every-2-month injection dosing schedule because non-adherence or missed doses could lead to HIV-1 acquisition and development of resistance Hypersensitivity Reactions: Serious or severe hypersensitivity reactions have been reported in association with other integrase inhibitors and could occur with APRETUDE Discontinue APRETUDE immediately if signs or symptoms of hypersensitivity reactions develop. Clinical status, including liver transaminases, should be monitored and appropriate therapy initiated Hepatotoxicity: Hepatotoxicity has been reported in a limited number of individuals receiving cabotegravir with or without known pre-existing hepatic disease or identifiable risk factors Clinical and laboratory monitoring should be considered and APRETUDE should be discontinued if hepatotoxicity is suspected and individuals managed as clinically indicated Depressive Disorders: Depressive disorders (including depression, depressed mood, major depression, persistent depressive disorder, suicidal ideation or attempt) have been reported with APRETUDE Promptly evaluate patients with depressive symptoms Risk of Reduced Drug Concentration of APRETUDE Due to Drug Interactions: The concomitant use of APRETUDE and other drugs may result in reduced drug concentration of APRETUDE Refer to the full Prescribing Information for steps to prevent or manage these possible and known significant drug interactions, including dosing recommendations. Consider the potential for drug interactions prior to and during use of, and after discontinuation of APRETUDE; review concomitant medications during use of APRETUDE ADVERSE REACTIONS The most common adverse reactions (incidence ≥1%, all grades) with APRETUDE were injection site reactions, diarrhea, headache, pyrexia, fatigue, sleep disorders, nausea, dizziness, flatulence, abdominal pain, vomiting, myalgia, rash, decreased appetite, somnolence, back pain, and upper respiratory tract infection. DRUG INTERACTIONS Refer to the full Prescribing Information for important drug interactions with APRETUDE Drugs that induce UGT1A1 may significantly decrease the plasma concentrations of cabotegravir USE IN SPECIFIC POPULATIONS Lactation: Assess the benefit-risk of using APRETUDE to the infant while breastfeeding due to the potential for adverse reactions and residual concentrations in the systemic circulation for up to 12 months or longer after discontinuation Pediatrics: Not recommended in individuals weighing less than 35 kg For more information, please see full US Prescribing Information for APRETUDE: RUKOBIA (fostemsavir) extended-release tablets INDICATION RUKOBIA, in combination with other antiretrovirals (ARVs), is indicated to treat HIV-1 infection in heavily treatment-experienced adults with multidrug-resistant HIV-1 infection failing their current ARV regimen due to resistance, intolerance, or safety considerations. IMPORTANT SAFETY INFORMATION CONTRAINDICATIONS Do not use in patients with previous hypersensitivity to fostemsavir or any of the components of RUKOBIA. Do not use RUKOBIA in patients receiving strong cytochrome P450 (CYP)3A inducers, including but not limited to enzalutamide, carbamazepine, phenytoin, rifampin, mitotane, and St John’s wort (Hypericum perforatum). WARNINGS AND PRECAUTIONS Immune Reconstitution Syndrome, including the occurrence of autoimmune disorders with variable time to onset, has been reported with the use of RUKOBIA. QTc Prolongation with Higher than Recommended Dosages: RUKOBIA at 2,400 mg twice daily has been shown to significantly prolong the QTc interval of the electrocardiogram. Use RUKOBIA with caution in patients with a history of QTc interval prolongation or in patients with relevant pre-existing cardiac disease or who are taking drugs with a known risk of Torsade de Pointes. Elderly patients may be more susceptible to drug-induced QT interval prolongation. Elevations in Hepatic Transaminases in Patients with Hepatitis B or C Virus Co-infection: Monitoring of liver chemistries is recommended in patients with hepatitis B and/or C co-infection. Diligence should be applied in initiating or maintaining effective hepatitis B therapy when starting RUKOBIA in patients co-infected with hepatitis B. Adverse Reactions or Loss of Virologic Response Due to Drug Interactions with concomitant use of RUKOBIA and other drugs may occur (see Contraindications and Drug Interactions). Adverse reactions The most common adverse reaction (all grades, randomized cohort) observed in ≥5% of subjects was nausea (10%). 81% of adverse reactions reported with RUKOBIA were mild or moderate in severity. Drug interactions See the full Prescribing Information for RUKOBIA for a complete list of significant drug interactions. Temsavir may increase plasma concentrations of grazoprevir and voxilaprevir. Use an alternative hepatitis C virus regimen if possible. Use the lowest possible starting dose for statins and monitor for statin-associated adverse events. Patients receiving RUKOBIA should not take doses of estrogen-based therapies, including oral contraceptives, that contain more than 30 mcg/day of ethinyl estradiol. Caution is advised particularly in patients with additional risk factors for thromboembolic events. Use in specific populations Pregnancy: There are insufficient human data on the use of RUKOBIA during pregnancy to definitively assess a drug-associated risk for birth defects and miscarriage. An Antiretroviral Pregnancy Registry has been established. Lactation: Breastfeeding is not recommended due to the potential for HIV-1 transmission, developing viral resistance, and adverse reactions in a breastfed infant. For more information, please see full US Prescribing Information for RUKOBIA: About ViiV Healthcare ViiV Healthcare is a global specialist HIV company established in November 2009 by GSK (LSE: GSK) and Pfizer (NYSE: PFE) dedicated to delivering advances in treatment and care for people living with HIV and for people who are at risk of acquiring HIV. Shionogi became a ViiV shareholder in October 2012. The company’s aims are to take a deeper and broader interest in HIV and AIDS than any company has done before and take a new approach to deliver effective and innovative medicines for HIV treatment and prevention, as well as support communities affected by HIV. For more information on the company, its management, portfolio, pipeline, and commitment, please visit viivhealthcare.com. About GSK GSK is a global biopharma company with a purpose to unite science, technology, and talent to get ahead of disease together. Find out more at gsk.com. Cautionary statement regarding forward-looking statements GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Such factors include, but are not limited to, those described under Item 3.D “Risk factors” in the company's Annual Report on Form 20-F for 2022, and Q4 Results for 2023. Registered in England & Wales: GSK plc ViiV No. 3888792 Healthcare Limited No. 06876960 Registered Office: GSK plc 980 Great West Road Brentford, Middlesex United Kingdom TW8 9GS ViiV Healthcare Limited GSK Medicines Research Centre Gunnels Wood Road, Stevenage United Kingdom SG1 2NY References 1 Han, et al. Phase I Study of Cabotegravir Long-Acting Injectable Formulations Supports ≥4-Monthly Dose Interval. Presented at 31st Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 2 Leone, et al. VH3810109 (N6LS) in Antiretroviral Therapy–Naive Adults With HIV-1: Phase IIa BANNER Efficacy Data. Presented at 31st Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 3 Win, et al. High-Dose VH3810109 (N6LS) ± Recombinant Human Hyaluronidase PH20: Phase I SPAN Study Safety Results. Presented at 31st Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 4 Taiwo, et al. Safety and Efficacy of VRC07-523LS plus Long-Acting Cabotegravir in the Phase 2 ACTG A5357 Trial. Presented at 31st Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 5 Rana, et al. Long-acting Injectable CAB/RPV is Superior to Oral ART in PWH with adherence challenges: ACTG A5359. Presented at 31st Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 6 Kamya, et al. SEARCH Randomized trial of Dynamic Choice HIV Prevention including injectable cabotegravir (CAB-LA). Presented at 31st Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 7 Hsu, et al. Real-World Effectiveness of Cabotegravir + Rilpivirine vs. Standard of Care Oral Regimens in the US. Presented at 31 Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 8 Sörstedt, et al. Switching to DTG+3TC vs 3-drug regimens in routine clinical care: long-term Swedish data. Presented at 31st Conference on Retroviruses and Opportunistic Infections (CROI). March 2024. 9 Data on File

Phase 2Phase 1Clinical ResultPhase 3

16 Oct 2023

·www.prnewswire.com

TaiMed Announces Significant Progress in Clinical Trials for New HIV Treatment

Company champions long-acting HIV therapy with new biologic drug TMB-365/380 combination; after favorable results of Phase 1b/2a, company plans to accelerate Phase 2 clincial study to expedite path to market TAIPEI, Oct. 16, 2023 /PRNewswire/ -- TaiMed Biologics, an innovation-driven biotech company dedicated to serving unmet healthcare needs, has announced favorable results and the successful completion of the sentinel group in its phase 1b/2a clinical study evaluating its groundbreaking new treatment for HIV — Long-Acting TMB-365/TMB-380 mAb Combination Maintenance HIV Therapy — initially unveiled at its investor conference on September 6. Following a professional assessment of dosing selection, the company has confirmed the dosages required for the future administration of the two-month combination therapy, thereby achieving its original goals for the sentinel group clinical trial. Continue Reading TaiMed Zhubei Facility To ensure the success of future clinical trials, product positioning in the market, and expedite the overall clinical trial timeline, the company has promptly submitted a revised protocol to the U.S. FDA for the core group clinical trial. In the modified protocol, all participants in the core group trial will be combined and administered injections every two months to obtain a sufficient sample size for Phase 2 clinical study, potentially moving up the start of Phase 3 clinical trials by a year and expediting the drug's path to market. Additionally, TaiMed is opening discussions with potential HIV pharmaceutical companies for licensing and co-development opportunities. In the future, the company will continue to assess the feasibility of dosing every three months to extend the duration of action, as well as exploring administration through other routes, such as intravenous infusion, intramuscular, and subcutaneous pathways. The sentinel group of the Phase 1/2a clinical study has confirmed TMB-365/380 as an ultra-long-acting new drug combination. The target market of TMB-365/380 is first-line maintenance therapy that is entirely different from and much greater than that of TaiMed's first-generation product, Trogarzo, which is an orphan drug and targets multi-drug-resistant patients. This combination treatment with bi-monthly or quarterly dosing could potentially provide a complete stand-alone regimen, offer patients greater convenience and better tolerability, and ensure adherence. At present, the only approved long-acting HIV maintenance combination therapy is a small molecule drug based combination. There is a great deal of anticipation in the market for the potential of new long-acting HIV drugs. TaiMed's groundbreaking new drug combination, TMB-365/380, combines two long-acting mAbs with different mechanisms of action for treating HIV, serving as a complete regimen that does not require pairing with additional HIV treatments. In addition, small molecule drugs can have significant side effects, potential drug interactions, and be painful to administer. In this way, the full antibody combination of TMB365/380 has major advantages over currently available drugs. HIV drugs are a massive market with an annual value of USD 30 billion. Currently, long-acting injections account for only 3%, but are projected to exceed 50% to 60%. TaiMed plans to lead the way in this segment, serving patients and healthcare providers as a vital global leader in the realm of long-acting injections—and HIV treatment overall. About TaiMed TaiMed Biologics Inc. (4147.TWO) is an innovation-driven biotechnology company dedicated to addressing the unmet medical needs of patients worldwide. Since our establishment in 2007, we have focused on developing groundbreaking antibodies for the treatment of HIV/AIDS. We are proud to have introduced Trogarzo (TMB-355), the first monoclonal antibody (mAb) for HIV/AIDS treatment in the United States. Building upon this remarkable milestone, we are excited to announce our ongoing development of the TMB-365/TMB-380 combination therapy. This promising therapy underscores our unwavering commitment to advancing healthcare with integrity and passion. SOURCE TaiMed Biologics

Clinical StudyOrphan Drug

21 Feb 2023

·www.biospace.com

Gilead Presents New Data From HIV Cure Research Program and Collaborations Exploring Novel Investigational Combinations and Strategies

– Innovative Investigational Approaches Include Targeting of the HIV Viral Reservoir and Enhancing Immune Response in the Absence of Antiretroviral Therapy – – Findings Support Continued Evaluation of Novel Strategies including Broadly Neutralizing HIV Antibodies, Vaccine Candidates, and TLR Agonists – FOSTER CITY, Calif.--(BUSINESS WIRE)-- Gilead Sciences, Inc., (Nasdaq: GILD) today announced results from four collaborative studies evaluating novel investigational combinations and strategies with the potential to target the HIV viral reservoir or enhance immune response to maintain virologic control in the absence of antiretroviral therapy (ART). These latest findings represent an ongoing multi-pronged approach in Gilead’s HIV cure research program. The data were presented at the Conference on Retroviruses and Opportunistic Infections (CROI) 2023 in Seattle. Findings from the HIV cure research program include results from three studies evaluating strategies to maintain virologic control in the absence of ART. Results from the Phase 2a TITAN trial show that dual treatment with the broadly neutralizing HIV antibodies (bNAbs; 3BNC117 and 10-1074) led to a significant delay in viral rebound. A Phase 1/2 proof-of-concept study conducted by the University of California San Francisco, with support from Gilead Sciences and amfAR, The Foundation for AIDS Research, provides evidence that combination immunotherapy consisting of a vaccine, an immune modulator, and bNAbs (10-1074 and VRC07-523LS) may provide virologic control. A separate AELIX-003 Phase 2 trial showed that a combination of a vaccine and an immune modulator induced a strong T cell response. “The results from the TITAN study exemplify the progress that research partnerships can bring in the pursuit of a cure for HIV and demonstrate the potential of combination strategies to play a critical role in that effort,” said Ole Søgaard, MD, Professor in the Department of Infectious Diseases at Aarhus University in Denmark. “Additional clinical research into the potential of bNAbs is warranted and may help in the discovery of novel approaches that transform HIV management for patients.” A fourth pre-clinical study in a macaque model conducted in collaboration with Gritstone bio, Inc. showed that simian immunodeficiency virus (SIV) ChAd and samRNA vaccines in combination with immune modulators induced a strong immune response. “The insights generated by the studies presented at CROI this year are advancing scientific knowledge on potential paths to a cure for HIV and expanding global understanding of what role broadly neutralizing antibodies, vaccines, and immune modulators may play in the future of HIV for people living with the virus,” said Devi SenGupta, Executive Director, HIV Clinical Development, Gilead Sciences. “Gilead will continue exploring novel combination strategies in our pursuit to help end the HIV epidemic for everyone, everywhere.” Curing HIV remains the ultimate aspiration of Gilead’s HIV research and development efforts. Gilead has a comprehensive cure research and development program that is advancing with speed and conviction. As Gilead progresses further with testing investigational curative regimens, the company’s partnerships and collaborations are more important than ever in this complex effort. Gilead aims to ensure its research and development efforts contribute to the entire scientific community’s search for a cure. Gilead’s work to develop a cure for HIV is one part of the company’s larger role in the global efforts to end the HIV epidemic and part of its focus on person-centric innovation. HIV cure research studies presented at CROI include: Abstract Title Presentation #Number The impact of 3BNC117, 10-1074 and lefitolimod on HIV-1 persistence – the TITAN trial Oral #136 Heterologous ChAd/samRNA vaccine induces robust T-cell responses in macaques Poster #323 A placebo controlled randomized trial of the HTI immunogen vaccine and vesatolimod (Late-breaker) Poster #433 Rebound dynamics following immunotherapy with an HIV vaccine, TLR9 agonist, and bNAbs (late-breaker) Poster #435 Vesatolimod pharmacodynamic response is associated with time to HIV rebound (Late-breaker) Poster #437 Lefitolimod, vesatolimod, teropavimab, zinlirvimab, and the other experimental compounds noted are investigational and are not approved by the U.S. Food and Drug Administration or any other regulatory authority. Their safety and efficacy have not been established. There is no cure for HIV infection or AIDS. The TITAN trial (NCT03837756) was funded in part through the Gilead Cure Grants Program. For more information, please visit: . About Gilead Sciences’ HIV Cure Research Program Curing HIV is a formidable challenge, but one that remains the focus and ultimate aspiration of Gilead’s HIV research and development efforts. We are mapping the path forward to a cure for HIV through close collaborations with industry, academic and community partners to ensure our research efforts can contribute to the entire scientific community’s search for a cure. Together with our partners, we are committed to helping end the epidemic by driving the next generation of cure strategies that will transform care and improve outcomes for all people living with HIV. About Gilead Sciences Gilead Sciences, Inc. is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. The company is committed to advancing innovative medicines to prevent and treat life-threatening diseases and address unmet needs in virology, oncology and inflammation. For 35 years, Gilead has been a leading innovator in the field of HIV, driving advances in treatment, prevention and cure research. Gilead researchers have developed 12 HIV medications, including the first single-tablet regimen to treat HIV, the first antiretroviral for pre-exposure prophylaxis (PrEP) to reduce the risk of acquiring HIV infection, and the first long-acting injectable HIV treatment medication administered twice-yearly. Our advances in medical research have helped to transform HIV into a treatable, preventable, chronic condition for millions of people. Gilead is committed to continued scientific innovation to provide solutions for the evolving needs of people affected by HIV around the world. Through partnerships and collaborations, the company also aims to improve education, expand access and address barriers to care, with the goal of ending the HIV epidemic for everyone, everywhere. Gilead was recognized as the number one philanthropic funder of HIV-related programs in a report released by Funders Concerned About AIDS. Gilead operates in more than 35 countries worldwide, with headquarters in Foster City, California. Forward-Looking Statements This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks, uncertainties and other factors, including Gilead’s ability to initiate, progress or complete clinical trials or studies within currently anticipated timelines or at all, and the possibility of unfavorable results from ongoing or additional clinical trials or studies, including those involving and other bNAbs, and experimental compounds of our partner; uncertainties relating to regulatory applications and related filing and approval timelines, and the risk that any regulatory approvals, if granted, may be subject to significant limitations on use; and any assumptions underlying any of the foregoing. These and other risks, uncertainties and factors are described in detail in Gilead’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, as filed with the U.S. Securities and Exchange Commission. These risks, uncertainties and other factors could cause actual results to differ materially from those referred to in the forward-looking statements. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. The reader is cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, and is cautioned not to place undue reliance on these forward-looking statements. All forward-looking statements are based on information currently available to Gilead, and Gilead assumes no obligation and disclaims any intent to update any such forward-looking statements. Gilead and the Gilead logo are registered trademarks of Gilead Sciences, Inc., or its related companies. All other trademarks are the property of their respective owner(s). For more information about Gilead, please visit the company’s website at , follow Gilead on Twitter (@Gilead Sciences) and LinkedIn, or call Gilead Public Affairs at 1-800-GILEAD-5 or 1-650-574-3000.

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Indication	Highest Phase	Country/Location	Organization	Date
HIV Infections	Phase 2	US	ViiV Healthcare Ltd.	31 Dec 2019
HIV Infections	Phase 2	PR	ViiV Healthcare Ltd.	31 Dec 2019
Acquired Immunodeficiency Syndrome	Phase 2	US	National Institute of Allergy & Infectious Diseases	03 Dec 2018
Latent Infection	Phase 1	US	National Institute of Allergy & Infectious Diseases	12 Feb 2019

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Study	Phase	Population	Analyzed Enrollment	Group	Results	Evaluation	Publication Date


NCT03928821 (CTgov)	Phase 1	HIV Infections	27	PGT121+VRC07-523LS (T1: PGT121 + VRC07-523LS mo 0)	vtjdsfwmmy(tjqrbyzhrq) = zbaxyiqokv udnulckvih (twlatjctuy, rcujeydoyn - swqkatdalz) View more	-	11 Jul 2022
				PGDM1400+VRC07-523LS (T2: PGDM1400 + VRC07-523LS mo 0)	vtjdsfwmmy(tjqrbyzhrq) = czjthaubtk udnulckvih (twlatjctuy, esotnunagk - xdpygromig) View more
NCT03387150 (CTgov)	Phase 1	HIV Infections	124	VRC07-523LS (Group 1: Vaccine)	nxgmwoqxmf(ntkdlvyefn) = whpdquyhaw zogpdaaywl (cpetuemfhi, knjvsthcbr - skysgitnbc) View more	-	21 Mar 2022
				VRC07-523LS (Group 2: Vaccine)	nxgmwoqxmf(ntkdlvyefn) = iinbijuqtc zogpdaaywl (cpetuemfhi, mlvrbgkdbr - bwebswtoms) View more
NCT02256631 (CTgov)	Phase 1	HIV Infections	83	VRC01 (Dose Group 1)	zuoueigmph(vtuhvkgpwd) = tqitxmvxlt zwdjawegof (lyxzilnzyx, pfshskkamr - nyvmklbsjc) View more	-	23 Aug 2021
				VRC01 (Dose Group 2)	zuoueigmph(vtuhvkgpwd) = jxleezwvxu zwdjawegof (lyxzilnzyx, vqbonccxif - cozsmqbxry) View more
NCT02840474 (CTgov)	Phase 1	HIV Infections	16	VRC-HIVMAB080-00-AB (Part A: VRC01LS (40 mg/kg))	ppizciycnt(lkbldhjsep) = nreoitpxze neybmzgyuu (ctbsoyxooo, ysibibgoms - slsqavhulc) View more	-	23 Feb 2021
				VRC-HIVMAB075-00-AB (Part B: VRC07-523LS (40 mg/kg))	ppizciycnt(lkbldhjsep) = ugeijsfxjp neybmzgyuu (ctbsoyxooo, taosgbuhhs - qobnrgcgnb) View more
NCT03015181 (Pubmed \| Lancet HIV) Manual	Phase 1	-	26	VRC07-523LS	fmrebvcrsh(yecjwsuepa) = vchlyieuzh xaqikbqzqo (yzlixkpjhp ) View more	Positive	01 Oct 2019
VRC 607/ACTG 5378 (IAS2019)	Not Applicable	HIV Infections	16	VRC01LS	bnyqlxdzlt(ptutrrzzxq) = xeudlqroyw fnwysrkrgi (notzifzrfr )	-	01 Jan 2019
				VRC07-523LS	bnyqlxdzlt(ptutrrzzxq) = qfeulmyeww fnwysrkrgi (notzifzrfr )

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