The LATITUDE Study: Long-Acting Therapy to Improve Treatment SUccess in Daily LifE
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ClinicalTrials.gov Identifier: NCT03635788 |
Recruitment Status :
Recruiting
First Posted : August 17, 2018
Last Update Posted : February 13, 2023
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Condition or disease | Intervention/treatment | Phase |
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HIV Infections | Drug: Standard of Care (SOC) Oral ART Drug: Oral RPV Drug: Oral CAB Drug: RPV-LA Loading Dose Drug: CAB-LA Loading Dose Drug: RPV-LA Maintenance Dose Drug: CAB-LA Maintenance Dose | Phase 3 |
This study will compare the efficacy, safety, and durability of two different strategies to treat participants with a history of sub-optimal adherence and control of their HIV infection: long-acting (LA) antiretroviral therapy (ART) with rilpivirine (RPV) LA and cabotegravir (CAB) LA versus all-oral standard of care (SOC).
The study includes four steps. In Step 1, participants will receive a SOC oral induction regimen consisting of an ART regimen that involves at least 3 drugs for 24 weeks. Participants who achieve milestones will receive conditional economic incentives.
In Step 2, eligible participants will be randomized to receive either oral RPV + oral CAB for 4 weeks (optional) followed by RPV-LA + CAB-LA every 4 weeks for until the end of step 3 or to continue on SOC for 52 weeks.
At the completion of Step 2, eligible participants randomized to SOC will have the option to register to Step 3 and receive LA ART, which includes oral RPV + oral CAB for 4 weeks (optional) followed by RPV-LA + CAB-LA every 4 weeks until the end of step 3. Participants already receiving RPV-LA + CAB-LA in Step 2 will continue on this regimen in Step 3 for 52 weeks.
Eligible participants will enter Step 4 and be followed for 52 weeks on locally sourced oral ART.
Participants will be followed for up to a total of 180 weeks. Study visits, which will occur throughout the study, may include physical examinations; blood, urine, and hair collection; liver function tests; questionnaires; and an electrocardiogram (ECG).
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 350 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase III Study to Evaluate Long-Acting Antiretroviral Therapy in Non-Adherent HIV-Infected Individuals |
Actual Study Start Date : | March 28, 2019 |
Estimated Primary Completion Date : | November 30, 2024 |
Estimated Study Completion Date : | December 31, 2026 |
Arm | Intervention/treatment |
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Experimental: Arm A: LA ART
In Step 1, participants will receive SOC oral ART regimen for up to 24 weeks. In Step 2, participants will receive oral RPV once daily and oral CAB once daily for 4 weeks (optional), followed by a RPV-LA loading dose and a CAB-LA loading dose, followed in 4 weeks by an RPV-LA maintenance dose and a CAB-LA maintenance dose every 4 weeks for 44 weeks. In Step 3, participants will receive a RPV-LA maintenance dose and a CAB-LA maintenance dose every 4 weeks until the end of Step 2. In Step 4, eligible participants will be followed until they complete 52 weeks on locally sourced oral ART.
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Drug: Standard of Care (SOC) Oral ART
SOC oral ART regimen must include at least 3 drugs with 2 or more drugs predicted to be fully active, including a boosted protease inhibitor (PI) and/or an integrase strand transfer inhibitor (INSTI) Drug: Oral RPV RPV 25 mg tablets
Other Name: Rilpivirine Drug: Oral CAB CAB 30 mg tablets
Other Names:
Drug: RPV-LA Loading Dose 900 mg administered as one 3 mL (900 mg) intramuscular injection in the gluteal muscle
Other Name: Rilpivirine Long-Acting Injectable Drug: CAB-LA Loading Dose 600 mg administered as one 3 mL (600 mg) intramuscular injection in the gluteal muscle
Other Name: Cabotegravir Long-Acting Injectable Drug: RPV-LA Maintenance Dose 600 mg administered as one 2 mL (600 mg) intramuscular injection in the gluteal muscle
Other Name: Rilpivirine Long-Acting Injectable Drug: CAB-LA Maintenance Dose 400 mg administered as one 2 mL (400 mg) intramuscular injection in the gluteal muscle
Other Name: Cabotegravir Long-Acting Injectable |
Active Comparator: Arm B: SOC Oral ART
In Step 1, participants will receive SOC oral ART regimen for up to 24 weeks. In Step 2, participants will continue SOC oral ART regimen for 52 weeks. In Step 3, participants will receive oral RPV once daily and oral CAB once daily for 4 weeks (optional), followed by a RPV-LA loading dose and a CAB-LA loading dose, followed in 4 weeks by an RPV-LA maintenance dose and CAB-LA maintenance dose every 4 weeks until the end of Step 3. In Step 4, eligible participants will be followed until they complete 52 weeks on locally sourced oral ART.
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Drug: Standard of Care (SOC) Oral ART
SOC oral ART regimen must include at least 3 drugs with 2 or more drugs predicted to be fully active, including a boosted protease inhibitor (PI) and/or an integrase strand transfer inhibitor (INSTI) Drug: Oral RPV RPV 25 mg tablets
Other Name: Rilpivirine Drug: Oral CAB CAB 30 mg tablets
Other Names:
Drug: RPV-LA Loading Dose 900 mg administered as one 3 mL (900 mg) intramuscular injection in the gluteal muscle
Other Name: Rilpivirine Long-Acting Injectable Drug: CAB-LA Loading Dose 600 mg administered as one 3 mL (600 mg) intramuscular injection in the gluteal muscle
Other Name: Cabotegravir Long-Acting Injectable Drug: RPV-LA Maintenance Dose 600 mg administered as one 2 mL (600 mg) intramuscular injection in the gluteal muscle
Other Name: Rilpivirine Long-Acting Injectable Drug: CAB-LA Maintenance Dose 400 mg administered as one 2 mL (400 mg) intramuscular injection in the gluteal muscle
Other Name: Cabotegravir Long-Acting Injectable |
- Occurrence of regimen failure in Step 2 [ Time Frame: From after Step 2 randomization to Step 2, Week 48 ]
Regimen failure is defined as the occurrence of the first of the following two events at any time post randomization and Step 2, week 48, visit:
- Virologic failure (defined as confirmed HIV-1 RNA >200 copies/mL after Step 2 randomization)
- Permanent discontinuation of randomized study treatment
- Occurrence of virologic failure in Step 2 at any time post randomization and week 48 visit [ Time Frame: from after Step 2 randomization to Step 2, Week 48 ]Virologic failure is defined as confirmed HIV-1 RNA greater than 200 copies/mL after Step 2 randomization
- Occurrence of the treatment-related failure in Step 2 at any time post randomization and week 48 visit [ Time Frame: from after Step 2 randomization to Step 2, Week 48 ]Time will be measured from the Step 2 randomization to the first of the following events: virologic failure or treatment discontinuation due to adverse event (AE)
- Number of participants with virologic non-success [ Time Frame: from after Step 2 randomization to Step 2, Week 48] ]Virologic non-success will be defined by the US Food and Drug Administration (FDA) Snapshot algorithm
- Number of participants with plasma HIV-1 RNA level less than 50 copies/mL and less than or equal to 200 copies/mL at scheduled study visits on Steps 1 and 2 [ Time Frame: Measured from Step 1 entry through Step 2, Week 52 ]Summarized and tabulated by Step, study visit, and randomized treatment
- Frequency of AEs during Steps 1 and 2 [ Time Frame: Measured from Step 1 entry through Step 2, Week 52 ]AEs will be graded based on the Division of AIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), corrected Version 2.1, July 2017
- Occurrence of discontinuation of randomized treatment in Step 2 [ Time Frame: Measured from after Step 2 randomization through Step 2, Week 48 ]Time will be measured from Step 2 at any time post randomization to Step 2 week 48 visit
- Summary score of HIV Treatment Satisfaction Questionnaire (HIVTSQ) in Step 2 [ Time Frame: Step 2 randomization, Step 2 weeks 24 and 48 ]Summarized and tabulated by randomized treatments
- Frequency of missed or delayed injections for participants who received LA ART in Step 2 [ Time Frame: Measured from Step 2 randomization through Step 2, Week 52 ]Delayed injection is defined as 8 days beyond scheduled injection day.
- Summary scores of HIV Treatment Adherence Self-Efficacy Scale in Step 1 and Step 2 [ Time Frame: Measured from Step 1 through Step 2, Week 52 ]Summarized and tabulated by Step
- Frequency of new drug-resistance mutations in participants with virologic failure in Step 2 [ Time Frame: Measured from after Step 2 randomization through Step 2, Week 52 ]Summarized and tabulated by randomized treatment
- Frequency of Injection Site Reactions (ISR) during Step 2 [ Time Frame: Measured from Step 2 randomization through Step 2, Week 52 ]Summarized and tabulated by reaction site
- Summary of participant self-reported dichotomous preference questionnaire [ Time Frame: Step 2 week 48 ]Summarized and tabulated by randomized treatment

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Step 1 Inclusion Criteria
• HIV-1 infection, documented by any licensed rapid HIV test or HIV enzyme or chemiluminescence immunoassay (E/CIA) test kit at any time prior to study entry and confirmed by a licensed Western blot or a second antibody test by a method other than the initial rapid HIV and/or E/CIA, or by HIV-1 antigen, plasma HIV-1 RNA viral load.
- NOTE: The term "licensed" refers to a FDA-approved kit, which is required for all IND studies.
- WHO (World Health Organization) and CDC (Centers for Disease Control and Prevention) guidelines mandate that confirmation of the initial test result must use a test that is different from the one used for the initial assessment. A reactive initial rapid test should be confirmed by either another type of rapid assay or an E/CIA that is based on a different antigen preparation and/or different test principle (e.g., indirect versus competitive), or a Western blot or a plasma HIV-1 RNA viral load.
- HIV-1 Plasma viral load (VL) greater than 200 copies/mL within 12 months prior to study entry by any US laboratory that has a Clinical Laboratory Improvement Amendments (CLIA) certification or its equivalent, unless participant has been lost to clinical follow-up (see 4.1.3 NOTE) and no viral load result is available within the last 12 months
Evidence of non-adherence to ART according to at least one of the following criteria:
- Poor virologic response within 18 months prior to study entry (defined as less than 1 log10 decrease in HIV-1 RNA or HIV-1 RNA greater than 200 copies/mL at two time points at least 4 weeks apart) in individuals who have been prescribed ART for at least 6 consecutive months.
- Lost to clinical follow-up within 18 months prior to study entry with ART non-adherence for greater than or equal to 6 consecutive months.
- NOTE: Lost to clinical follow-up is defined as either no contact with provider or missed greater than or equal to 1 appointment in a 6-month period. ART non-adherence is defined as a lapse in ART greater than or equal to 7 days (consecutive or non-consecutive), in the 6-month period where they were lost to clinical follow-up per participant report.
- No evidence of any clinically relevant RPV or INSTI resistance-associated mutations (see Manual of Procedures [MOPS] for list of exclusionary mutations) through commercially available genotypic (or phenotypic, if available) analyses from any laboratory that has a CLIA certification or equivalent within 60 days of study entry (see protocol for more information), nor history of such mutations on review of prior HIV-1 drug resistance tests by the site investigator. For participants in whom a screening HIV-1 conventional genotype cannot be resulted by the testing laboratory, review of historical genotypes and treatment history by the IoR can be used to satisfy this criterion (see protocol for more information).
- Ability of site clinician, in conjunction with participant, to construct an oral induction antiretroviral (ARV) regimen that must include at least three ARVs of which at least two must be predicted to be fully active. The regimen must, include PI/cobi and/or an INSTI based on screening and/or historic resistance testing.
Laboratory values obtained within 60 days prior to study entry by any laboratory that has a CLIA certification or its equivalent:
- Hemoglobin greater than or equal to 9.0 g/dL
- Absolute neutrophil count (ANC) greater than or equal to 600/mm^3
- Alanine aminotransferase (ALT) less than or equal to 3 x upper limit of normal (ULN)
- Creatinine Clearance (CrCl) greater than or equal to 50 mL/min estimated by Chronic Kidney Disease Epidemiology Collaboration equation (CKD-Epi )
For participants of reproductive potential, negative serum or urine pregnancy test with a sensitivity of less than or equal to 25 mIU/mL at screening. This will be repeated again at study entry.
- NOTE: Participants are considered to be NOT of reproductive potential if: 1) they have had amenorrhea for at least 12 consecutive months prior to study entry ((i.e., who have had no menses within 12 months prior to study entry), and have a documented follicle-stimulating hormone (FSH) greater than 40 IU/mL; OR 2) an FSH level is not available, but they have had 24 consecutive months of amenorrhea (in the absence of medications known to induce amenorrhea); OR 3) they report having undergone surgical sterilization (e.g., hysterectomy, or bilateral oophorectomy, or bilateral tubal ligation/hysteroscopic tubal occlusion).
Contraception Requirements
Participants of Reproductive Potential: Participants of reproductive potential, who are participating in sexual activity that could lead to pregnancy, must agree to use at least one of the listed highly effective methods for contraception from 30 days prior to the first dose of study medication, while receiving the study drugs, and for 30 days after stopping oral medications, or the duration specified in the product label if receiving study drugs not supplied by the study, or 52 weeks after stopping RPV-LA or CAB-LA. Acceptable methods of contraception include:
- Contraceptive subdermal implant
- Intrauterine device or intrauterine system
- Combined estrogen and progestogen oral contraceptive
- Injectable progestogen
- Contraceptive vaginal ring
- Percutaneous contraceptive patches
- Participants Who Are Not of Reproductive Potential: Participants who are not of reproductive potential are eligible to start study drugs without requiring the use of contraceptives. Any statement of self-reported sterility or that of her partner's must be entered in the source documents.
- NOTE A: Acceptable documentation of lack of reproductive potential is the participant's self-reported history of surgical sterilization, menopause, or male partner's azoospermia.
- NOTE B: ALL participants in the study should be counseled on safer sexual practices including the use and benefit/risk of effective barrier methods (e.g., male condom) and on the risk of HIV transmission to a partner without HIV
- Age greater than or equal to 18 years.
- Ability and willingness of participant or legal guardian/representative to provide written informed consent.
Step 1 Exclusion Criteria
- Currently pregnant, planning to become pregnant during the study period, or currently breastfeeding.
Participants determined by the Site Investigator to have a high risk of seizures, including participants with an unstable or poorly controlled seizure disorder.
- NOTE: A participant with a prior history of seizure may be considered for enrollment if the Investigator believes the risk of seizure recurrence is low. All cases of prior seizure history should be discussed with the A5359 protocol leadership team (actg.leada5359@fstrf.org) prior to enrollment.
- Advanced liver disease (as defined by any of the following: presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, or persistent jaundice), known biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones) OR history of liver cirrhosis.
- Chronic Hepatitis C (HCV) with planned or anticipated use of anti-HCV therapy prior to the completion of Step 2.
History of or current active hepatitis B (HBV) infection defined as positive HBV surface antigen test or any detectable HBV DNA in participants with isolated HBcAb and HBV DNA as follows:
- Participants positive for HBsAg are excluded
- Participants negative for anti-HBs but positive for anti-HBc (negative HBsAg status) and any detectable HBV DNA are excluded
- NOTE: Participants positive for anti-HBc (negative HBsAg status) and positive for anti-HBs (past and/or current evidence) are immune to HBV and are not excluded. If prior documentation of immunity is available, repeat testing at screening is not required.
- Current or anticipated need for chronic anti-coagulation therapy.
- Unwilling to receive injections, or unable to receive gluteal injections.
- Tattoo or other condition over gluteus region, which may interfere with interpretation of injection site reaction.
- Previous use of CAB• Any acute or serious illness, within 7 days prior to entry,requiring systemic treatment and/or hospitalizationthat may render the participant unable to receive study medication, in the opinion of the site investigator..
- QTc greater than 450 ms using either Bazett or Fridericia method within 60 days prior to study entry: Whichever method is used at screening must be used throughout study period.
- Any serious medical or psychiatric condition, which may render the participant unable to receive study medication in the opinion of the site investigator.
- Known allergy/sensitivity or any hypersensitivity to components of study drug(s) or their formulation.
- Requirement for any medication that is prohibited with a study medication (refer to protocol specific web page [PSWP]).
Step 2 Inclusion Criteria
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Meeting virologic suppression criteria at or after Step 1, week 4, defined as:
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HIV-1 RNA ≤200 copies/mL
OR
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HIV-1 RNA of 201-399 copies/mL followed by HIV-1 RNA ≤200 copies/mL by Step 1, week 24
NOTE: The HIV-1 RNA viral load that will be used to determine eligibility for randomization must have been collected within 4 weeks (28 days) of the Step 2 randomization visit.
Step 2 Exclusion Criteria
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- Permanent discontinuation of study treatment for any reason during Step 1.
- Participants who never started study treatment in Step 1 (see protocol for more information)
Step 3 Inclusion Criteria
- Willingness to continue for those in Arm A or begin to receive LA ART for those in Arm B.
- Arm B participants: HIV-1 RNA less than 50 copies/mL at Step 2, week 48, or HIV-1 RNA of 50-399 copies/mL at Step 2, week 48, followed by HIV-1 RNA less than 50 copies/mL by Step 2, week 52.
Step 3 Exclusion Criteria
- Permanent discontinuation of study treatment for any reason during Step 2.
- Confirmed Virologic Failure during Step 2.
- (Only for Arm B in Step 2) Currently pregnant, planning to become pregnant during the study period, or currently breastfeeding.
Step 4 Inclusion Criteria
- Any participant who has received at least one dose of CAB-LA or RPV-LA AND does not have access to available LA ART through their provider,
- OR does not wish to continue LA ART.
Step 4 Exclusion Criteria
• There are no exclusion criteria for Step 4.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03635788

Study Chair: | Aadia Rana, M.D. | Alabama CTU |
Responsible Party: | National Institute of Allergy and Infectious Diseases (NIAID) |
ClinicalTrials.gov Identifier: | NCT03635788 |
Other Study ID Numbers: |
ACTG A5359 30104 ( Registry Identifier: DAIDS-ES Registry Number ) |
First Posted: | August 17, 2018 Key Record Dates |
Last Update Posted: | February 13, 2023 |
Last Verified: | February 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Individual participant data that underlie results in the publication, after deidentification. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) |
Time Frame: | Beginning 3 months following publication and available throughout period of funding of the AIDS Clinical Trials Group by NIH. |
Access Criteria: |
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Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
HIV Infections Blood-Borne Infections Communicable Diseases Infections Sexually Transmitted Diseases, Viral Sexually Transmitted Diseases Lentivirus Infections Retroviridae Infections RNA Virus Infections Virus Diseases Immunologic Deficiency Syndromes Immune System Diseases |
Rilpivirine Cabotegravir Reverse Transcriptase Inhibitors Nucleic Acid Synthesis Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Antiviral Agents Anti-Infective Agents Anti-HIV Agents Anti-Retroviral Agents HIV Integrase Inhibitors Integrase Inhibitors |