Trial Outcomes & Findings for Post-Licensure Safety Study of ISENTRESS™ (Raltegravir) in a United States Managed Care Network (MK-0518-268) (NCT NCT01078246)

NCT ID: NCT01078246

Last Updated: 2018-08-22

Results Overview

All new malignancies occurring during the risk period, including Acquired Immune Deficiency Syndrome (AIDS)-defining and non-AIDS-defining malignancies, were identified through the Kaiser Permanente cancer registries. The registry data was supplemented by the use of computer-stored records of outpatient visits, Emergency Department visits and hospitalizations to identify cancers that would not be captured through the cancer registries (e.g. cutaneous Kaposi's sarcoma).The AIDS-defining malignancies reported for any cohort were invasive cervical cancer, Kaposi's sarcoma, and non-Hodgkin lymphoma. Incidence is reported as unadjusted, crude rates.

Recruitment status

COMPLETED

Target enrollment

7124 participants

Primary outcome timeframe

Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Results posted on

2018-08-22

Participant Flow

The analyses in this study are based on data collected from a cohort of human immunodeficiency virus (HIV-1)-infected participants in a setting of routine clinical care at the Kaiser Permanente medical centers in California, United States. Participants could contribute data to more than one cohort, but no overlap in follow-up time was allowed.

Participant milestones

Participant milestones
Measure
Raltegravir Cohort Only
Participants with HIV-1 infection who received raltegravir (RAL) on or after 12 October 2007 (the market authorization date in the United States) (Raltegravir Cohort). These participants contributed data to the Raltegravir Cohort only.
Historical and Raltegravir Cohorts Only
Participants with HIV-1 infection who 1) received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort), and 2) received RAL on or after 12 October 2007 (Raltegravir Cohort). These participants contributed data to the Historical and Raltegravir Cohorts only.
Historical Cohort Only
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort). These participants contributed data to the Historical Cohort only.
Historical and Concurrent Cohorts Only
Participants with HIV-1 infection who 1) received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort), and 2) received therapy with a new non-RAL antiretroviral therapy after 12 October 2007 (Concurrent Cohort). These participants contributed data to the Historical and Concurrent Cohorts only.
Concurrent Cohort Only
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007 (Concurrent Cohort). These participants contributed data to the Concurrent Cohort only.
Concurrent and Raltegravir Cohorts Only
Participants with HIV-1 infection who 1) received therapy with a new non-RAL antiretroviral therapy on or after 12 October 2007 (Concurrent Cohort), and 2) received RAL after 12 October 2007 (Raltegravir Cohort). These participants contributed data to the Concurrent and Raltegravir Cohorts only.
Historical, Concurrent and Raltegravir Cohorts
Participants with HIV-1 infection who 1) received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort), 2) received therapy with a new non-RAL antiretroviral therapy on or after 12 October 2007 (Concurrent Cohort), and 3) received RAL after 12 October 2007 (Raltegravir Cohort). These participants contributed data to all three cohorts.
Overall Study
STARTED
1041
405
1963
152
3310
231
22
Overall Study
COMPLETED
1041
405
1963
152
3310
231
22
Overall Study
NOT COMPLETED
0
0
0
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Post-Licensure Safety Study of ISENTRESS™ (Raltegravir) in a United States Managed Care Network (MK-0518-268)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Raltegravir Cohort Only
n=1041 Participants
Participants with HIV-1 infection who received raltegravir (RAL) on or after 12 October 2007 (the market authorization date in the United States) (Raltegravir Cohort). These participants contributed data to the Raltegravir Cohort only.
Historical and Raltegravir Cohorts Only
n=405 Participants
Participants with HIV-1 infection who 1) received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort), and 2) received RAL on or after 12 October 2007 (Raltegravir Cohort). These participants contributed data to the Historical and Raltegravir Cohorts only.
Historical Cohort Only
n=1963 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort). These participants contributed data to the Historical Cohort only.
Historical and Concurrent Cohorts Only
n=152 Participants
Participants with HIV-1 infection who 1) received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort), and 2) received therapy with a new non-RAL antiretroviral therapy after 12 October 2007 (Concurrent Cohort). These participants contributed data to the Historical and Concurrent Cohorts only.
Concurrent Cohort Only
n=3310 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007 (Concurrent Cohort). These participants contributed data to the Concurrent Cohort only.
Concurrent and Raltegravir Cohorts Only
n=231 Participants
Participants with HIV-1 infection who 1) received therapy with a new non-RAL antiretroviral therapy on or after 12 October 2007 (Concurrent Cohort), and 2) received RAL after 12 October 2007 (Raltegravir Cohort). These participants contributed data to the Concurrent and Raltegravir Cohorts only.
Historical, Concurrent and Raltegravir Cohorts
n=22 Participants
Participants with HIV-1 infection who 1) received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007 (Historical Cohort), 2) received therapy with a new non-RAL antiretroviral therapy on or after 12 October 2007 (Concurrent Cohort), and 3) received RAL after 12 October 2007 (Raltegravir Cohort). These participants contributed data to all three cohorts.
Total
n=7124 Participants
Total of all reporting groups
Age, Continuous
48.2 Years
STANDARD_DEVIATION 10.7 • n=5 Participants
49.2 Years
STANDARD_DEVIATION 10.0 • n=7 Participants
45.8 Years
STANDARD_DEVIATION 10.1 • n=5 Participants
44.9 Years
STANDARD_DEVIATION 9.9 • n=4 Participants
43.0 Years
STANDARD_DEVIATION 11.5 • n=21 Participants
46.8 Years
STANDARD_DEVIATION 12.4 • n=8 Participants
45.5 Years
STANDARD_DEVIATION 9.9 • n=8 Participants
45.0 Years
STANDARD_DEVIATION 11.1 • n=24 Participants
Sex: Female, Male
Female
121 Participants
n=5 Participants
41 Participants
n=7 Participants
195 Participants
n=5 Participants
23 Participants
n=4 Participants
340 Participants
n=21 Participants
33 Participants
n=8 Participants
4 Participants
n=8 Participants
757 Participants
n=24 Participants
Sex: Female, Male
Male
920 Participants
n=5 Participants
364 Participants
n=7 Participants
1768 Participants
n=5 Participants
129 Participants
n=4 Participants
2970 Participants
n=21 Participants
198 Participants
n=8 Participants
18 Participants
n=8 Participants
6367 Participants
n=24 Participants

PRIMARY outcome

Timeframe: Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Population: The analysis includes all eligible participants.

All new malignancies occurring during the risk period, including Acquired Immune Deficiency Syndrome (AIDS)-defining and non-AIDS-defining malignancies, were identified through the Kaiser Permanente cancer registries. The registry data was supplemented by the use of computer-stored records of outpatient visits, Emergency Department visits and hospitalizations to identify cancers that would not be captured through the cancer registries (e.g. cutaneous Kaposi's sarcoma).The AIDS-defining malignancies reported for any cohort were invasive cervical cancer, Kaposi's sarcoma, and non-Hodgkin lymphoma. Incidence is reported as unadjusted, crude rates.

Outcome measures

Outcome measures
Measure
Raltegravir Cohort
n=1699 Participants
Participants with HIV-1 infection who received RAL on or after 12 October 2007. Participants from the Historical Cohort and the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Historical Cohort
n=2542 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007. These participants were eligible for inclusion in the Concurrent and Raltegravir Cohorts.
Concurrent Cohort
n=3715 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007. Participants from the Historical Cohort were eligible for inclusion in the Concurrent Cohort. Participants from the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Incidence of AIDS-defining and Non-AIDS-defining Malignancy
AIDS-defining Malignancy
13.0 Events per 1000 person-years of followup
Interval 9.6 to 16.3
8.9 Events per 1000 person-years of followup
Interval 5.7 to 12.2
9.3 Events per 1000 person-years of followup
Interval 7.4 to 11.2
Incidence of AIDS-defining and Non-AIDS-defining Malignancy
Non-AIDS-defining Malignancy
18.2 Events per 1000 person-years of followup
Interval 14.3 to 22.1
9.1 Events per 1000 person-years of followup
Interval 5.8 to 12.3
10.3 Events per 1000 person-years of followup
Interval 8.3 to 12.3

PRIMARY outcome

Timeframe: Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Population: The analysis includes all eligible participants.

Hepatic events occurring during the risk period were identified through computer-stored records of laboratory values, outpatient visits, Emergency Department visits, and hospitalizations. Significant hepatic events were identified based on algorithms utilizing a combination of diagnoses, procedures, and laboratory results. Incidence is reported as unadjusted, crude rates.

Outcome measures

Outcome measures
Measure
Raltegravir Cohort
n=1699 Participants
Participants with HIV-1 infection who received RAL on or after 12 October 2007. Participants from the Historical Cohort and the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Historical Cohort
n=2542 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007. These participants were eligible for inclusion in the Concurrent and Raltegravir Cohorts.
Concurrent Cohort
n=3715 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007. Participants from the Historical Cohort were eligible for inclusion in the Concurrent Cohort. Participants from the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Incidence of Clinically Important Hepatic Events
19.0 Events per 1000 person-years of followup
Interval 14.9 to 23.0
25.0 Events per 1000 person-years of followup
Interval 19.6 to 30.5
17.1 Events per 1000 person-years of followup
Interval 14.5 to 19.7

PRIMARY outcome

Timeframe: Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Population: The analysis includes all eligible participants.

Significant skin events (e.g. Stevens-Johnson syndrome and toxic epidermal necrolysis) occurring during the risk period were identified through the use of computer-stored records of outpatient visits, Emergency Department visits and hospitalizations. The identification of potential significant skin events was based on algorithms utilizing a combination of diagnoses, procedures and/or medications. Surveillance of outpatient visits was limited to rashes coded as drug-related and requiring use of steroid (e.g. prednisone) administration. Incidence is reported as unadjusted, crude rates.

Outcome measures

Outcome measures
Measure
Raltegravir Cohort
n=1699 Participants
Participants with HIV-1 infection who received RAL on or after 12 October 2007. Participants from the Historical Cohort and the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Historical Cohort
n=2542 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007. These participants were eligible for inclusion in the Concurrent and Raltegravir Cohorts.
Concurrent Cohort
n=3715 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007. Participants from the Historical Cohort were eligible for inclusion in the Concurrent Cohort. Participants from the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Incidence of Clinically Important Skin Events
40.6 Events per 1000 person-years of followup
Interval 34.4 to 46.8
69.8 Events per 1000 person-years of followup
Interval 60.4 to 79.2
63.6 Events per 1000 person-years of followup
Interval 58.2 to 69.1

PRIMARY outcome

Timeframe: Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Population: The analysis includes all eligible participants.

Significant muscle events (e.g. rhabdomyolysis) occurring during the risk period were identified through the use of computer-stored records of laboratory values, outpatient visits, Emergency Department visits and hospitalizations. The identification of potential significant muscle events was based on algorithms utilizing a combination of diagnoses, procedures and/or laboratory results for creatinine kinase. The number of muscle events did not meet the threshold for statistical analysis per protocol. Incidence is reported as unadjusted, crude rates.

Outcome measures

Outcome measures
Measure
Raltegravir Cohort
n=1699 Participants
Participants with HIV-1 infection who received RAL on or after 12 October 2007. Participants from the Historical Cohort and the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Historical Cohort
n=2542 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007. These participants were eligible for inclusion in the Concurrent and Raltegravir Cohorts.
Concurrent Cohort
n=3715 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007. Participants from the Historical Cohort were eligible for inclusion in the Concurrent Cohort. Participants from the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Incidence of Clinically Important Muscle Events
3.4 Events per 1000 person-years of followup
Interval 1.7 to 5.1
3.3 Events per 1000 person-years of followup
Interval 1.4 to 5.3
1.5 Events per 1000 person-years of followup
Interval 0.7 to 2.3

PRIMARY outcome

Timeframe: Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Population: The analysis includes all eligible participants.

Lipodystrophy (e.g. lipoatrophy, facial wasting) occurring during the risk period was identified through the use of computer-stored records of outpatient visits, Emergency Department visits and hospitalizations. The identification of potential lipodystrophy was based on two coded diagnoses codes indicative of lipodystrophy appearing at least 6 months apart over the course of patient care, the identification of interventions to treat such conditions (e.g. sculptra therapy), or procedural codes for Computerized Tomography indicating incident neck or abdominal lipoaccumulation. Incidence is reported as unadjusted, crude rates.

Outcome measures

Outcome measures
Measure
Raltegravir Cohort
n=1699 Participants
Participants with HIV-1 infection who received RAL on or after 12 October 2007. Participants from the Historical Cohort and the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Historical Cohort
n=2542 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007. These participants were eligible for inclusion in the Concurrent and Raltegravir Cohorts.
Concurrent Cohort
n=3715 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007. Participants from the Historical Cohort were eligible for inclusion in the Concurrent Cohort. Participants from the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Incidence of Lipodystrophy
20.6 Events per 1000 person-years of followup
Interval 15.9 to 25.4
35.6 Events per 1000 person-years of followup
Interval 28.9 to 42.4
9.2 Events per 1000 person-years of followup
Interval 7.2 to 11.1

SECONDARY outcome

Timeframe: Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Population: The analysis includes all eligible participants.

Significant cardiovascular events occurring during the risk period were identified through the use of computer-stored records and defined as inpatient events based on algorithms that utilize a combination of diagnosis and/or procedure codes. The identification of potential significant cardiovascular events was based on the occurrence of major adverse cardiovascular events (MACE) which include acute myocardial infarction (MI), ischemic stroke, unstable angina, revascularization (e.g. percutaneous coronary intervention (PCI) and coronary bypass graft surgery (CABG)), and cardiovascular death. Incidence is reported as unadjusted, crude rates.

Outcome measures

Outcome measures
Measure
Raltegravir Cohort
n=1699 Participants
Participants with HIV-1 infection who received RAL on or after 12 October 2007. Participants from the Historical Cohort and the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Historical Cohort
n=2542 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007. These participants were eligible for inclusion in the Concurrent and Raltegravir Cohorts.
Concurrent Cohort
n=3715 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007. Participants from the Historical Cohort were eligible for inclusion in the Concurrent Cohort. Participants from the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Incidence of Clinically Important Cardiovascular Events
6.7 Events per 1000 person-years of followup
Interval 4.4 to 9.1
6.4 Events per 1000 person-years of followup
Interval 3.7 to 9.1
4.0 Events per 1000 person-years of followup
Interval 2.8 to 5.3

SECONDARY outcome

Timeframe: Historical Cohort: up to 33 months (January 2005 to October 2007); Raltegravir and Concurrent Cohorts: up to 69 months (October 2007 to June 2013)

Population: The analysis includes all eligible participants.

All-cause mortality occurring during the risk period was identified through the use of computer-stored records of Emergency Department visits, hospitalizations, and state death certificates. Deaths were identified from administrative Kaiser Permanente databases, including Kaiser Permanente regional research and respective state(s) mortality files as well as the Social Security Administrative files. Incidence is reported as unadjusted, crude rates.

Outcome measures

Outcome measures
Measure
Raltegravir Cohort
n=1699 Participants
Participants with HIV-1 infection who received RAL on or after 12 October 2007. Participants from the Historical Cohort and the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Historical Cohort
n=2542 Participants
Participants with HIV-1 infection who received antiretroviral therapy (non-RAL) between 1 January 2005 and 11 October 2007. These participants were eligible for inclusion in the Concurrent and Raltegravir Cohorts.
Concurrent Cohort
n=3715 Participants
Participants with HIV-1 infection who received therapy with a new non-RAL antiretroviral therapy after 12 October 2007. Participants from the Historical Cohort were eligible for inclusion in the Concurrent Cohort. Participants from the Concurrent Cohort were eligible for inclusion in the Raltegravir Cohort.
Incidence of All-cause Mortality
16.9 Events per 1000 person-years of followup
Interval 13.3 to 20.6
18.4 Events per 1000 person-years of followup
Interval 13.7 to 23.0
7.7 Events per 1000 person-years of followup
Interval 6.0 to 9.4

Adverse Events

Raltegravir Cohort

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Historical Cohort

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Concurrent Cohort

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Senior Vice President, Global Clinical Development

Merck Sharp & Dohme Corp.

Phone: 1-800-672-6372

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place