A Study Evaluating Implementation Strategies for Cabotegravir (CAB)+ Rilpivirine (RPV) Long-acting (LA) Injectables for Human Immunodeficiency Virus (HIV)-1 Treatment in European Countries

ViiV Healthcare437 enrolled

Overview

The overall objective of the CAB LA + RPV LA clinical development program is to develop a highly effective, well-tolerated, two-drug, LA injectable regimen which has the potential to offer improved treatment convenience, compliance and improved quality of life for people living with HIV compared to current standard of care. This interventional study will examine different implementation strategies in different clinic settings across European countries to identify strategies which best meet the needs in each local context and involve both participants receiving study treatment CAB LA + RPV LA (patient study participants \[PSP\]) as well as the healthcare providers at the investigator site level (staff study participants \[SSP\]). SSPs consists of 2 groups: standard and enhanced arm.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

437

Conditions

HIV Infections

Interventions

CAB will be available as 30 milligrams (mg) tablet. It will be administered as one tablet once daily with food from Day 1 to Month 1.

CAB LADRUG

CAB LA 600 mg will be administered as intramuscular (IM) injection.

RPV OLIDRUG

RPV will be available as 25 mg tablet. It will be administered as one tablet once daily with food from Day 1 to Month 1.

RPV LADRUG

RPV LA 900 mg will be administered as IM injection.

Continuous Quality Improvement (CQI) callsOTHER

CQI will be attended by the enhanced arm (Arm-E). The CQI calls will be conducted to identify problems/challenges, generate plans to address the challenges, and identify how to measure the change that results from the plan.

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Participants aged 18 years or older at the time of signing the informed consent. * HIV-1 infected and must be suppressed on a guideline recommended active Highly active antiretroviral therapy (HAART) regimen for at least 6 months prior to screening. Any prior switch, defined as a change of a single drug or multiple drugs simultaneously, must have occurred due to tolerability/safety, access to medications, or convenience/simplification, and must not have been done for virologic failure (on treatment HIV-1 RNA more than or equal to \[\>=\]200 c/mL). * Documented evidence of at least two plasma HIV-1 RNA measurements \<50 c/mL in the 12 months prior to Screening: at least one \<6 months prior to screening and one 6-12 months prior to screening. * Plasma HIV-1 RNA \<50 c/mL at screening. * A female participant is eligible to participate if she is not pregnant (as confirmed by a negative urine human chorionic gonadotrophin \[hCG\] test at screen and at Day 1), not lactating, and at least one of the following conditions applies: 1. Non-reproductive potential is defined as: Pre-menopausal females with one of the following: * Documented tubal ligation. * Documented hysteroscopic tubal occlusion procedure with follow-up confirmation of bilateral tubal occlusion. * Hysterectomy. * Documented Bilateral Oophorectomy. * Postmenopausal defined as 12 months of spontaneous amenorrhea \[in questionable cases a blood sample with simultaneous follicle stimulating hormone (FSH) and estradiol levels consistent with menopause. Females on hormone replacement therapy (HRT) and whose menopausal status is in doubt will be required to use one of the highly effective contraception methods if they wish to continue their HRT during the study. Otherwise, they must discontinue HRT to allow confirmation of post-menopausal status prior to study enrolment. 2. Reproductive potential and agrees to follow one of the options listed in the Modified List of Highly Effective Methods for Avoiding Pregnancy in Females of Reproductive Potential (FRP) from 30 days prior to the first dose of study medication, throughout the study, and for at least 30 days after discontinuation of all oral study medications and for at least 52 weeks after discontinuation of CAB LA and RPV LA. * Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the consent form and in this protocol. Eligible participants or their legal guardians (and next of kin when locally required), must sign a written informed consent form before any protocol-specified assessments are conducted. Enrolment of participants who are unable to provide direct informed consent is optional and will be based on local legal/regulatory requirements and site feasibility to conduct protocol procedures. * French participants: In France, a participant will be eligible for inclusion in this study only if either affiliated to or a beneficiary of a social security category. Exclusion criteria: * Within 6 months prior to screening, plasma HIV-1 RNA measurement \>=50 c/mL. * During the previous 12 months, any confirmed HIV-1 RNA measurement \>=200 c/mL. * Women who are pregnant, breastfeeding, or plan to become pregnant or breastfeed during the study. * Any evidence of a current Center for Disease Control and Prevention (CDC) Stage 3 disease \[CDC, 2014\], except cutaneous Kaposi's sarcoma not requiring systemic therapy, and historical or current Cluster of Differentiation 4 (CD4)+ counts \<200 cells per millimeter cube (cells/mm\^3) are not exclusionary. * Any pre-existing physical or mental condition (including substance use disorder) which, in the opinion of the investigator, may interfere with the participant's ability to comply with the dosing schedule and/or protocol evaluations or which may compromise the safety of the participant. * Participants determined by the investigator to have a high risk of seizures, including participants with an unstable or poorly controlled seizure disorder. A participant with a prior history of seizure may be considered for enrolment if the investigator believes the risk of seizure recurrence is low. * Participants who, in the investigator's judgment, pose a significant suicide risk. Participant's recent history of suicidal behavior and/or suicidal ideation should be considered when evaluating for suicide risk. * The participant has a tattoo, gluteal implant/ enhancements or other dermatological condition overlying the gluteus region which may interfere with interpretation of injection site reactions. * Evidence of Hepatitis B virus (HBV) infection based on the results of testing for Hepatitis B surface antigen (HBsAg), Hepatitis B core antibody (anti-HBc), Hepatitis B surface antibody (anti-HBs) and HBV Deoxyribonucleic acid (DNA) as follows: * Participants positive for HBsAg are excluded. * Participants negative for anti-HBs but positive for anti-HBc (negative HBsAg status) and positive for HBV DNA are excluded. * Participants who are anticipated to require Hepatitis C virus (HCV) treatment within 12 months must be excluded. Asymptomatic individuals with chronic HCV infection will not be excluded; investigators must carefully assess if therapy specific for HCV infection is required. (HCV treatment on study may be permitted, following consultation and approval of the DAA based therapy being considered with the medical monitor). * Participants with HCV co-infection will be allowed entry into this study if: 1. Liver enzymes meet entry criteria. 2. HCV disease has undergone appropriate work-up, and is not advanced. Additional information (where available) on participants with HCV coinfection at screening should include results from any liver biopsy, Fibroscan, ultrasound, or other fibrosis evaluation, history of cirrhosis or other decompensated liver disease, prior treatment, and timing/plan for HCV treatment. 3. In the event that recent biopsy or imaging data is not available or inconclusive, the Fib-4 score will be used to verify eligibility: * Fib-4 score more than (\>)3.25 is exclusionary. * Fib-4 score 1.45-3.25 requires Medical Monitor consultation Fibrosis 4 score formula: (Age times Aspartate aminotransferase \[AST\]) / (Platelets times (square \[Alanine aminotransferase\]{ALT}). * Unstable liver disease (as defined by any of the following: presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, or persistent jaundice or cirrhosis), known biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones or otherwise stable chronic liver disease per investigator assessment). * History of liver cirrhosis with or without hepatitis viral co-infection. * Ongoing or clinically relevant pancreatitis. * Clinically significant cardiovascular disease, as defined by history/evidence of congestive heart failure, symptomatic arrhythmia, angina/ischemia, coronary artery bypass grafting (CABG) surgery or percutaneous transluminal coronary angioplasty (PTCA) or any clinically significant cardiac disease. * Ongoing malignancy other than cutaneous Kaposi's sarcoma, basal cell carcinoma, or resected, non-invasive cutaneous squamous cell carcinoma, or cervical intraepithelial neoplasia; other localized malignancies require agreement between the investigator and the Study medical monitor for inclusion of the participant prior to inclusion. * Any condition which, in the opinion of the Investigator, may interfere with the absorption, distribution, metabolism or excretion of the study drugs or render the participant unable to receive study medication. * History or presence of allergy or intolerance to the study drugs or their components or drugs of their class. Current or anticipated need for chronic anti-coagulation with the exception of the use of low dose acetylsalicylic acid (less than or equal to \[\<=\]325 mg per day) or hereditary coagulation and platelet disorders such as hemophilia or Von Willebrand Disease * Any evidence of primary resistance based on the presence of any major known Integrase inhibitor (INI) or Non-nucleoside reverse transcriptase inhibitor (NNRTI) resistance-associated mutation, except for K103N, by any historical resistance test result. * ALT \>=5 times the upper limit of normal (ULN) or ALT \>=3 times ULN and bilirubin \>=1.5 times ULN (with \>35 percent \[%\] direct bilirubin). * Any verified Grade 4 laboratory abnormality. A single repeat test is allowed during the Screening phase to verify a result. * Participant has estimated creatinine clearance \<50 milliliters per minute (mL/min)/1.73 m\^2 via the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. * Exposure to an experimental drug or experimental vaccine within either 28 days, 5 half-lives of the test agent, or twice the duration of the biological effect of the test agent, whichever is longer, prior to Day 1 of this study. * Treatment with any of the following agents within 28 days of Day 1: * Radiation therapy. * Cytotoxic chemotherapeutic agents. * Tuberculosis therapy except for isoniazid (isonicotinylhydrazid \[INH\]). * Anti-coagulation agents. * Immunomodulators that alter immune responses such as chronic systemic corticosteroids, interleukins, or interferons. * Treatment with an HIV-1 immunotherapeutic vaccine within 90 days of screening. * Use of medications which are associated with Torsade de Pointes must be discussed with the Medical Monitor to determine eligibility. * Participants receiving any prohibited medication and who are unwilling or unable to switch to an alternate medication. * A participant with known or suspected active Coronavirus Disease 2019 (COVID-19) infection OR contact with an individual with known COVID-19, within 14 days of study enrollment (World Health Organization \[WHO\] definitions).

Locations (18)

GSK Investigational Site

Antwerp, Belgium

GSK Investigational Site

Brussels, Belgium

GSK Investigational Site

Brussels, Belgium

GSK Investigational Site

Ghent, Belgium

GSK Investigational Site

Bordeaux, France

GSK Investigational Site

Orléans, France

GSK Investigational Site

Paris, France

GSK Investigational Site

Paris, France

GSK Investigational Site

Paris, France

GSK Investigational Site

Vandœuvre-lès-Nancy, France

...and 8 more locations

Outcomes

Primary Outcomes

Change From Baseline in Acceptability of Implementation Measure (AIM-Imp) Score in SSP at Month 12

The AIM-Imp was designed to assess the acceptability of an implementation process (i.e., perception among implementation stakeholders that a given treatment, service, practice, or innovation is agreeable, palatable, or satisfactory). The measure consists of four items/statements (1. The implementation support thus far meets my approval 2. The implementation support thus far is appealing to me 3. I like the implementation support I have received 4. I welcome implementation support for the CAB + RPV injection treatment), each with a five-point rating scale (1 = completely disagree, 2 = disagree, 3 = neither agree nor disagree, 4 = agree, and 5 = completely agree). The mean score ranges from 1 to 5 with 1 indicating the least acceptability and 5 the most acceptability.

Time frame: Baseline (Month 1) and Month 12

Change From Baseline in Implementation Appropriateness Measure (IAM-Imp) Score in SSPs at Month 12

The IAM-Imp is designed to assess the appropriateness of an implementation process (i.e., the perceived fit, relevance, or compatibility of the innovation for a given practice setting, provider, or consumer, and the perceived fit of the innovation to address a particular issue or problem). The IAM-Imp is a four-item/statement measure (1. The implementation support thus far seems fitting 2. The implementation support seems suitable for using the CAB + RPV injection treatment 3. The implementation support seems applicable for the CAB + RPV injection treatment 4. The implementation support seems like a good match) with a five-point rating scale (1 = completely disagree, 2 = disagree, 3 = neither agree nor disagree, 4 = agree, and 5 = completely agree). The mean score ranges from 1 to 5 with 1 indicating the least appropriateness and 5 the most appropriateness.

Time frame: Baseline (Month 1) and Month 12

Change From Baseline in Feasibility of Implementation Measure (FIM-Imp) Score at Month 12

The FIM-Imp was a four-item/statement measure (1. The implementation support seems implementable in our clinic/practice 2. The implementation support seems possible in our clinic/practice 3. The implementation support seems doable in our clinic/practice 4. The implementation support seems easy to use in our clinic/practice) and was measured on a five-point rating scale (1 = completely disagree, 2 = disagree, 3 = neither agree nor disagree, 4 = agree, and 5 = completely agree). The mean score ranges from 1 to 5 with 1 indicating the least feasibility and 5 the most feasibility.

Time frame: Baseline (Month 1) and Month 12

Number of Participants That Discussed Themes Arising Out of Qualitative Semi-structured Interviews Which Are Coded as Acceptability

A semi-structured interview guide was designed to support the discussion surrounding experience with the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the acceptability from the SSPs' perspective. The results of themes that are integral to successful implementation are presented based on implementation strategies.

Time frame: Up to 12 Months

Number of Participants That Discussed Themes Arising Out of Qualitative Semi-structured Interviews Which Are Coded as Appropriateness

A semi-structured interview guide was designed to support the discussion surrounding experience with the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the appropriateness from the SSPs' perspective. The results of themes that are integral to successful implementation are presented based on implementation strategies.

Time frame: Up to Month 12

Number of Participants That Discussed Themes Arising Out of Qualitative Semi-structured Interviews Which Are Coded as Feasibility

A semi-structured interview guide was designed to support the discussion surrounding experience with the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the feasibility from the SSPs' perspective. The results of themes that are integral to successful implementation are presented based on implementation strategies.

Time frame: Up to Month 12

Secondary Outcomes

Number of Staff Study Participants That Discussed Facilitators for Acceptability Assessed Via Semi Structured Interviews (SSIs)

A semi-structured interview guide was designed to support the discussion surrounding experience with the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the acceptability from the SSPs' perspective. The results for facilitators that are integral to successful implementation are presented.

Time frame: Up to 12 Months

Number of Staff Study Participants That Discussed Barriers for Acceptability Assessed Via SSIs

A semi-structured interview guide was designed to support the discussion surrounding experience with for the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the acceptability from the SSPs' perspective. The results for barriers that are integral to successful implementation are presented.

Time frame: Up to 12 Months

Number of Staff Study Participants That Discussed Facilitators for Appropriateness Assessed Via SSIs

A semi-structured interview guide was designed to support the discussion surrounding experience with for the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the appropriateness from the SSPs' perspective. The results for facilitators that are integral to successful implementation are presented.

Time frame: Up to 12 Months

Number of Staff Study Participants That Discussed Barriers for Appropriateness Assessed Via SSIs

A semi-structured interview guide was designed to support the discussion surrounding experience with for the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the appropriateness from the SSPs' perspective. The results for barriers that are integral to successful implementation are presented.

Data from ClinicalTrials.gov

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Time frame: Up to 12 Months

Number of Staff Study Participants That Discussed Facilitators for Feasibility Assessed Via SSIs

A semi-structured interview guide was designed to support the discussion surrounding experience with for the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the feasibility from the SSPs' perspective. The results for facilitators that are integral to successful implementation are presented.

Time frame: Up to 12 Months

Number of Staff Study Participants That Discussed Barriers for Feasibility Assessed Via SSIs

A semi-structured interview guide was designed to support the discussion surrounding experience with for the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the feasibility from the SSPs' perspective. The results for barriers that are integral to successful implementation are presented.

Time frame: Up to 12 Months

Change From Baseline in Implementation Leadership Scale (ILS) Score at Month 12

The ILS is a 12-item (facilitate implementation, obstacles, clear department standards, knowledge, ability to answer questions, awareness of concept, recognition, support employee efforts to learn, support employee efforts to use intervention, persevere(s) through the ups and downs, carries on through the challenges and reaction to criticial issues) measure that assesses SSP understanding of the degree to which leadership in their clinic/practice setting is proactive, knowledgeable, supportive, and perseverant with regards to implementing the CAB LA + RPV LA injection treatment in their settings. The items are measured on a five-point rating scale (1 = very great extent, 2 = great extent, 3 = moderate extent, 4 = slight extent, and 5 = not at all). The mean score ranges from 1 to 5. Higher the score means less understanding in leadership.

Time frame: Baseline (Month 1) and Month 12

Absolute Values of Implementation Climate Scale (ICS) Scores at Month 1 and Month 12

The ICS is a 9 item (team's main goals, importance of implementation, top priority, workshops, treatment training, training material, staff adaptability, flexibility, openness to new intervention) measure that assesses SSPs' perceptions of their team (i.e., the people that they work with) while using the CAB LA + RPV LA injection treatment in their clinic/practice setting. The items were measured on a five-point rating scale (1 = very great extent, 2 = great extent, 3 = moderate extent, 4 = slight extent, and 5 = not at all). The mean score ranges from 1 to 5. Higher the score means less seriousness for implementation in staff.

Time frame: Month 1 and Month 12

Number of Modifications Reported by SSPs Assessed Via FRAME-IS

The Framework for Reporting Adaptations and Modifications to Evidence-based interventions - Implementation Strategies (FRAME-IS) was a seven-question measure (contained both open and closed categorical questions) used to record details the modifications made to the implementation of the CAB LA + RPV LA injection treatment procedures.

Time frame: Month 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12

Number of Plan, Do, Study, Act (PDSA) Cycles Developed During the Continuous Quality Improvement (CQI) Calls Course

CQI were a 60 minutes calls involved working through a plan to address the identified barriers, optimize processes, and evaluate these efforts. This process of addressing barriers was guided by a series of Plan, Do, Study, Act (PDSA) cycles. Number of PDSA cycles developed are presented.

Time frame: Month 2 to Month 7

Number of Participants Spending Average Time in the Clinic/Practice for Each Injection Visit Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The average time was categorized as: Up to 20 Minutes, Up to 40 Minutes, Up to 60 Minutes, Up to 90 Minutes, More than 90 Minutes and missing. Missing include participants who did not provide a response for the question.

Time frame: Up to Month 12

Number of Participants Spending Average Time in an Exam Room Waiting for a Nurse (or Other Healthcare Provider) to Get the Injection Administered Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The average time was categorized as: Up to 10 Minutes, 11-20 Minutes, 21-30 Minutes, 31-45 Minutes, More than 45 Minutes and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants Rating Acceptability With the Amount of Time Spent in The Clinic/Practice for Each Injection Visit Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The rating of acceptability was categorized as extremely acceptable, very acceptable, somewhat acceptable, a little acceptable, not at all acceptable and missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants Rating Acceptability to Come to the Clinic/Practice Every 2 Months for the Injection Visit Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The rating of acceptability was categorized as extremely acceptable, very acceptable, somewhat acceptable, a little acceptable, not at all acceptable and missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants Taking Time Off From Work to Attend Appointment Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The time off responses were categorized as Whole day annual leave, Half day annual leave, Whole day sick leave, Half day sick leave, Whole day unpaid, Half day unpaid, Other, Not taken time off and missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants With Time it Took Them to Get to the Clinic Where They Receive HIV Treatment/Check-ups Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Up to 15 minutes, 16-30 minutes, 31-45 minutes, 46-60 minutes, More than 60 minutes, and missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants Who Seek Additional Care From a Dependent to Attend Appointment Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Yes, No, Not Applicable and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants That Endorsed Type of Transportation Used to Attend Appointments

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Taxi- Transportation service, Dropped-off, Private vehicle, Bicycle/scooter/ skateboard/ walked, Public transport and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants Taking Time Off From Work to Recover From Any Injection Site Reaction Issue Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The time off responses were categorized as No, Yes - On the day of receiving the treatment, Yes - One day after receiving the treatment, Yes-Two days after receiving the treatment, Yes-More than two days after receiving the treatment, Not Applicable, Missing and Missing Response for 'Yes'. Missing include participants who did not provide a response for the question. Missing Response for 'Yes' include participants who responded 'Yes' but did not provide duration of time off.

Time frame: Month 12

Number of Participants Rating Convenience of Clinic/Practice's Procedures for Scheduling Injections Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The convenience responses were categorized as Extremely convenient, Very convenient, Somewhat convenient, A little convenient, Not at all convenient, and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants Rating Convenience of Clinic/Practice's Procedures for Rescheduling Injections Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Extremely convenient, Very convenient, Somewhat convenient, A little convenient, Not at all convenient, Not applicable; I did not have to reschedule and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants Rating Feelings About Getting CAB+RPV Injection Treatment Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Extremely positive, Very positive, Somewhat positive, A little positive, Not at all positive and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants That Rated Perceived Knowledge About CAB+RPV Injection Treatment Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Extremely knowledgeable, Very knowledgeable, Somewhat knowledgeable, A little knowledgeable, Not at all knowledgeable and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants With Appointment Reminders Received Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question.The responses were categorized as Phone calls, Text/SMS messages, Existing clinic app, E-mail, Reminder in the mail, Another reminder and I did not receive reminders. The responses are not mutually exclusive.

Time frame: Month 12

Number of Participants Who Rated Helpfulness of Appointment Outside of Typical Work Times Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Extremely helpful, Very helpful, Somewhat helpful, A Little helpful, Not at all helpful and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants That Rated Agreement in Recommending the CAB+RPV Injections to Others Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Completely agree, Agree, Neutral, Disagree, Completely disagree and Missing. Missing include participants who did not provide a response for the question.

Time frame: Month 12

Number of Participants With Things Tried to Reduce Soreness Following Injections Assessed Via Questionnaire

Study-specific questions were developed to gather data on the facilitators and barriers of the CAB LA + RPV LA injection treatment. The response options are different for each question. The responses were categorized as Take over-the-counter pain relievers, Use a hot compress, Use a cold compress, Avoid sitting for long periods of time, Light stretching and exercise, None of the above, Other and I don't get sore after my injections.

Time frame: Month 12

Number of PSPs That Discussed Facilitators for Acceptability Assessed Via Semi Structured Interviews (SSIs)

A semi-structured interview guide was developed to support the discussion surrounding experience with for the implementation of CAB+RPV LA injection treatment. The interview guide topics were informed by the Exploration, Preparation, Implementation, Sustainment (EPIS) framework and Proctor Outcomes to facilitate discussions on the Acceptability, Appropriateness, Feasibility, and Sustainability from the PSPs' perspective. Results of number of PSPs that discussed facilitators for acceptability are presented.

Time frame: Up to Month 12

Number of PSPs That Discussed Barriers for Acceptability Assessed Via SSIs

Time frame: Up to Month 12

Number of PSPs That Discussed Facilitators for Appropriateness Assessed Via SSIs

Time frame: Up to Month 12

Number of PSPs That Discussed Barriers for Appropriateness Assessed Via SSIs

Time frame: Up to Month 12

Number of PSPs That Discussed Facilitators for Feasibility Assessed Via SSIs

Time frame: Up to Month 12

Number of PSPs That Discussed Barriers for Feasibility Assessed Via SSIs

Time frame: Up to Month 12

Change From Baseline in Acceptability of Intervention Measure (AIM) Score in PSPs at Month 12

AIM assesses the acceptability of an intervention (i.e., perception among stakeholders that a given treatment, service, practice, or innovation is agreeable, palatable, or satisfactory). It is a four-item (1. The CAB+RPV injection treatment meets my approval for treating my HIV, 2. The CAB+RPV injection treatment is appealing to me, 3. I like the CAB+RPV injection treatment for my HIV, 4. I welcome the CAB+RPV injection treatment for my HIV) measure with a five-point rating scale, where 1=completely disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, and 5=completely agree. The mean score ranges from 1 to 5 with 1 indicating the least acceptability and 5 the most acceptability.

Time frame: Baseline (Month 1) and Month 12

Change From Baseline in Intervention Appropriateness Measure (IAM) Score in PSPs at Month 12

IAM assesses the appropriateness of an intervention (i.e., the perceived fit, relevance, or compatibility of the innovation for a given practice setting, provider, or consumer; and the perceived fit of the innovation to address a particular issue or problem). It is a four-item (1. The CAB+RPV injection treatment is fitting for my life, 2. The CAB+RPV injection treatment is suitable for my life, 3. The CAB+RPV injection treatment is applicable to my life, 4. The CAB+RPV injection treatment is a good match for my life) measure with a five-point rating scale, where 1=completely disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, and 5=completely agree. The mean score ranges from 1 to 5 with 1 indicating the least appropriateness and 5 the most appropriateness.

Time frame: Baseline (Month 1) and Month 12

Change From Baseline in Feasibility of Intervention Measure (FIM) Score in PSPs at Month 12

The four-item (1. The CAB+RPV injection treatment seems implementable in my life 2. The CAB+RPV injection treatment every 2 months is possible for me to use 3. The CAB+RPV injection treatment every 2 months seems doable in my life 4. The CAB+RPV injection treatment every 2 months seems easy to use in my life). FIM assesses perceived intervention feasibility. The items are measured on a five-point rating scale, where 1=completely disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, and 5=completely agree. The mean score ranges from 1 to 5 with 1 indicating the least feasibility and 5 the most feasibility.

Time frame: Baseline (Month 1) and Month 12

Associated Person Clinical Sustainability Assessment Tool (APCSAT) Average Domain Score at Month 12

The APCSAT is a 35-item measure that assesses SSP impressions of the data in their clinic. Sustainability refers to the ability to maintain and expand the CAB LA + RPV LA injection treatment and its benefits over time. SSPs were asked to rate their clinic/practice along a range of specific domains that affect sustainability, including: 'Engages Staff \& Leadership,' 'Engaging Stakeholders,' 'Monitoring and Evaluation,' 'Implementation \& Training,' 'Outcomes \& Effectiveness,' 'Workflow Integration,' and 'Organizational Readiness.' Five items were presented to SSPs in each section. The items were measured on a seven-point rating scale (1 = little to no extent to 7 = to a very great extent. Domain total was divided by the total number of items with a score to get average score.

Time frame: Month 12

Percentage of PSP Receiving Injections Within Target Window

The target window for participants to receive injection was from Day -7 to Day 7.

Time frame: Day -7 to Day 7 of Month 2, 4, 6, 8, 10 and 12

Percentage of PSPs With Plasma HIV-1 Ribonucleic Acid (RNA) Less Than (<)50 Copies Per Milliliter (c/ml)

Plasma samples were collected from the participant at specific time points.

Time frame: Month 1, 2, 4, 8 and 12

Number of Participants With Confirmed Virologic Failure (CVF) Over Time

CVF was defined as rebound as indicated by two consecutive plasma HIV-1 RNA levels \>=200 c/ml.

Time frame: Month 1, 2, 4, 8, 10 and 12

Number of PSPs With Adverse Events (AEs) And Serious AEs (SAEs)

An adverse event (AE) is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention. An SAE is defined as any untoward medical occurrence that, at any dose may result in death or is life-threatening or requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity or is a congenital anomaly/birth defect or any other situation according to medical or scientific judgment or is associated with liver injury and impaired liver function.

Time frame: Up to 12 Months

Number of PSPs Discontinuing Treatment Due to AEs

Time frame: Up to 12 Months

Number of PSP With Preference for Therapy Assessed Via Preference Questionnaire

PSPs were asked to think about their experience of using the long-acting injectable medication versus the daily oral HIV medication, and to select their preferred treatment and all the reasons that support their preference. Results are categorized as: 'long-acting injectable HIV medication', 'daily oral HIV medication', 'no preference', Missing and Erroneous. Missing include participants who did not provide a response for the question. PSPs who completed this question incorrectly (i.e., checked reasons without a ticking a leading preference or checked more than one leading preference box) were included in Erroneous.

Time frame: Up to 12 Months