Trial Outcomes & Findings for Risk of Cancer Among Pantoprazole Users (NCT NCT01322633)
NCT ID: NCT01322633
Last Updated: 2014-02-20
Results Overview
Incidence rate was expressed as cases per 100,000 person-years with 95 percent (%) confidence intervals. Incidence rates were estimated from 1 year after the index date and were censored at the earliest of following events: diagnosis of gastric cancer, death, withdrawal from KPNC membership or end of the study, whichever occurred first for pantoprazole group. For other PPI group, data was also censored in case participants switched to pantoprazole group. Index date: the earliest date at which participant had achieved 240 days of study drug exposure within a 12 month time period before the study start date. Person-year was estimated by calculating all of the years that participants in a study were followed. Person-year calculations were adjusted for anticipated mortality based on United States (US) life tables.
COMPLETED
61864 participants
1 year after index date up to diagnosis of gastric cancer, death, withdrawal from KPNC membership, date when other PPI participants switched to pantoprazole or end of the study (up to Year 7.5)
2014-02-20
Participant Flow
Participant milestones
| Measure |
Pantoprazole
Participants enrolled in Kaiser Permanente Northern California (KPNC) health maintenance organization who received treatment with pantoprazole (Protonix, pantoprazole sodium) tablets as per standard clinical practice for at least 240 days within a 12-month period during 4 years (from 2000 to 2003) before the start of study, were observed for up to 7.5 years.
|
Other Proton Pump Inhibitors (PPI)
Participants enrolled in KPNC health maintenance organization who received treatment with any PPI other than pantoprazole (any combination of omeprazole, lansoprazole, rabeprazole, or esomeprazole) as per standard clinical practice for at least 240 days within a 12-month period during 8 years (from 1996 to 2003) before the start of study, were observed for up to 7.5 years.
|
|---|---|---|
|
Overall Study
STARTED
|
34178
|
27686
|
|
Overall Study
COMPLETED
|
34178
|
27686
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Risk of Cancer Among Pantoprazole Users
Baseline characteristics by cohort
| Measure |
Pantoprazole
n=34178 Participants
Participants enrolled in Kaiser Permanente Northern California (KPNC) health maintenance organization who received treatment with pantoprazole (Protonix, pantoprazole sodium) tablets as per standard clinical practice for at least 240 days within a 12-month period during 4 years (from 2000 to 2003) before the start of study, were observed for up to 7.5 years.
|
Other Proton Pump Inhibitors (PPI)
n=27686 Participants
Participants enrolled in KPNC health maintenance organization who received treatment with any PPI other than pantoprazole (any combination of omeprazole, lansoprazole, rabeprazole, or esomeprazole) as per standard clinical practice for at least 240 days within a 12-month period during 8 years (from 1996 to 2003) before the start of study, were observed for up to 7.5 years.
|
Total
n=61864 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Continuous
|
59 years
n=5 Participants
|
60 years
n=7 Participants
|
60 years
n=5 Participants
|
|
Sex: Female, Male
Female
|
19033 Participants
n=5 Participants
|
15611 Participants
n=7 Participants
|
34644 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
15145 Participants
n=5 Participants
|
12075 Participants
n=7 Participants
|
27220 Participants
n=5 Participants
|
PRIMARY outcome
Timeframe: 1 year after index date up to diagnosis of gastric cancer, death, withdrawal from KPNC membership, date when other PPI participants switched to pantoprazole or end of the study (up to Year 7.5)Population: Analysis population included all participants who met the inclusion criteria.
Incidence rate was expressed as cases per 100,000 person-years with 95 percent (%) confidence intervals. Incidence rates were estimated from 1 year after the index date and were censored at the earliest of following events: diagnosis of gastric cancer, death, withdrawal from KPNC membership or end of the study, whichever occurred first for pantoprazole group. For other PPI group, data was also censored in case participants switched to pantoprazole group. Index date: the earliest date at which participant had achieved 240 days of study drug exposure within a 12 month time period before the study start date. Person-year was estimated by calculating all of the years that participants in a study were followed. Person-year calculations were adjusted for anticipated mortality based on United States (US) life tables.
Outcome measures
| Measure |
Pantoprazole
n=34178 Participants
Participants enrolled in Kaiser Permanente Northern California (KPNC) health maintenance organization who received treatment with pantoprazole (Protonix, pantoprazole sodium) tablets as per standard clinical practice for at least 240 days within a 12-month period during 4 years (from 2000 to 2003) before the start of study, were observed for up to 7.5 years.
|
Other Proton Pump Inhibitors (PPI)
n=27686 Participants
Participants enrolled in KPNC health maintenance organization who received treatment with any PPI other than pantoprazole (any combination of omeprazole, lansoprazole, rabeprazole, or esomeprazole) as per standard clinical practice for at least 240 days within a 12-month period during 8 years (from 1996 to 2003) before the start of study, were observed for up to 7.5 years.
|
|---|---|---|
|
Incidence Rate of Gastric Cancer
|
19.88 incidence per 100000 person-years
Interval 14.26 to 26.96
|
23.73 incidence per 100000 person-years
Interval 12.97 to 39.81
|
SECONDARY outcome
Timeframe: 1 year after index date up to diagnosis of gastrointestinal cancer, death, withdrawal from KPNC membership, date when other PPI participants switched to pantoprazole or end of the study (up to Year 7.5)Population: Analysis population included all participants who met the inclusion criteria.
Incidence rate was expressed as cases per 100,000 person-years with 95 percent (%) confidence intervals. Incidence rates were estimated from 1 year after the index date and were censored at the earliest of following events: diagnosis of cancer of colon, pancreas, liver or small intestine, death, withdrawal from KPNC membership or end of the study, whichever occurred first for pantoprazole group. For other PPI group, data was also censored in case participants switched to pantoprazole group. Index date: the earliest date at which participant had achieved 240 days of study drug exposure within a 12 month time period before the study start date. Person-year was estimated by calculating all of the years that participants in a study were followed. Person-year calculations were adjusted for anticipated mortality based on United States (US) life tables.
Outcome measures
| Measure |
Pantoprazole
n=34178 Participants
Participants enrolled in Kaiser Permanente Northern California (KPNC) health maintenance organization who received treatment with pantoprazole (Protonix, pantoprazole sodium) tablets as per standard clinical practice for at least 240 days within a 12-month period during 4 years (from 2000 to 2003) before the start of study, were observed for up to 7.5 years.
|
Other Proton Pump Inhibitors (PPI)
n=27686 Participants
Participants enrolled in KPNC health maintenance organization who received treatment with any PPI other than pantoprazole (any combination of omeprazole, lansoprazole, rabeprazole, or esomeprazole) as per standard clinical practice for at least 240 days within a 12-month period during 8 years (from 1996 to 2003) before the start of study, were observed for up to 7.5 years.
|
|---|---|---|
|
Incidence Rate of Composite Gastrointestinal Cancers
|
168.41 incidence per 100000 person-years
Interval 151.13 to 187.12
|
129.25 incidence per 100000 person-years
Interval 101.84 to 161.78
|
SECONDARY outcome
Timeframe: 1 year after index date up to diagnosis of any cancer, death, withdrawal from KPNC membership, date when other PPI participants switched to pantoprazole or end of the study (up to Year 7.5)Population: Analysis population included all participants who met the inclusion criteria.
Incidence rate was expressed as cases per 100,000 person-years with 95 percent (%) confidence intervals. Incidence rates were estimated from 1 year after the index date and were censored at the earliest of following events: diagnosis of any type of cancer (excluding non-melanoma skin cancers), death, withdrawal from KPNC membership or end of the study, whichever occurred first for pantoprazole group. For other PPI group, data was also censored in case participants switched to pantoprazole group. Index date: the earliest date at which participant had achieved 240 days of study drug exposure within a 12 month time period before the study start date. Person-year was estimated by calculating all of the years that participants in a study were followed. Person-year calculations were adjusted for anticipated mortality based on United States (US) life tables.
Outcome measures
| Measure |
Pantoprazole
n=34178 Participants
Participants enrolled in Kaiser Permanente Northern California (KPNC) health maintenance organization who received treatment with pantoprazole (Protonix, pantoprazole sodium) tablets as per standard clinical practice for at least 240 days within a 12-month period during 4 years (from 2000 to 2003) before the start of study, were observed for up to 7.5 years.
|
Other Proton Pump Inhibitors (PPI)
n=27686 Participants
Participants enrolled in KPNC health maintenance organization who received treatment with any PPI other than pantoprazole (any combination of omeprazole, lansoprazole, rabeprazole, or esomeprazole) as per standard clinical practice for at least 240 days within a 12-month period during 8 years (from 1996 to 2003) before the start of study, were observed for up to 7.5 years.
|
|---|---|---|
|
Incidence Rate of Overall Cancer
|
1465.21 incidence per 100000 person-years
Interval 1412.12 to 1519.79
|
1369.88 incidence per 100000 person-years
Interval 1275.12 to 1469.82
|
Adverse Events
Pantoprazole
Other Proton Pump Inhibitors (PPI)
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
- Publication restrictions are in place
Restriction type: OTHER