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Sponsored by: |
Center for Epidemiology and Health Research, Germany |
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Information provided by: | Center for Epidemiology and Health Research, Germany |
ClinicalTrials.gov Identifier: | NCT00302835 |
The objective of the international, multicenter case-control study was to evaluate the association between end-stage renal disease (ESRD) and use of non-phenacetin-containing analgesics with particular emphasis on combined formulations.
Condition | Intervention |
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Kidney Failure, Chronic |
Drug: non-phenacetin containing analgesics |
Study Type: | Observational |
Study Design: | Natural History, Case Control, Retrospective Study |
Official Title: | Case-Control Study on Analgesics and Nephropathy (SAN) |
Estimated Enrollment: | 4200 |
Study Start Date: | January 2001 |
Estimated Study Completion Date: | December 2004 |
Background:
The association between intake of non-phenacetin-containing analgesics and the occurrence of chronic renal failure is still controversially discussed. A new epidemiologic study was planned and conducted in Germany and Austria.
Methods/design:
The objective of the international, multicenter case-control study was to evaluate the association between end-stage renal disease (ESRD) and use of non-phenacetin-containing analgesics with particular emphasis on combined formulations. A targeted sample of 1000 new (incident) dialysis patients, aged less than 50 years, was planned to recruit between January 1, 2001 and December 31, 2004. The age limit was chosen to avoid contamination of the study population with phenacetin-containing analgesics to the extent possible. Four control subjects per ESRD case, matched by age, sex, and region were selected from the population living in the region the case came from.
Lifetime exposure to analgesics and potential renal risk factors were recorded in a single face-to-face interview. A set of aids was introduced to reinforce the memory of study participants.
A standardized, pre-tested interview questionnaire (participants), a medical documentation sheet (physicians in dialysis centres), a logbook for all activities (dialysis centres) were used to collect the necessary data.
Quality management consisted of the standardized procedures, (re-) training and supervision of interviewers, regular checks of all incoming data for completeness and plausibility.
The study is scientifically independent and governed by a international Scientific Advisory Committee that bridged the gap between the sponsoring companies and the investigators. Also other advisory groups assisted the managing committee of the study. All relevant German and Austrian nephrological associations supported the study, and the study design was carefully reviewed and approved by the Kidney Foundation of Germany.
Discussion:
The study is expected to answer the main research question by end 2005. There is however a high potential for various biases that we tried to address with adequate measure. One limitation however cannot be overcome: The methodologically needed age-limitation of the study will make it not easy to generalize the results to age groups over 50 years. It might be suggested to repeat the study for persons over 50 years in 10 years when contamination with phenacetin use early in life is likely to be outgrown.
Ages Eligible for Study: | up to 50 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Germany | |
Center for Epidemiology and Health Research | |
Berlin, Germany, 10115 |
Principal Investigator: | Lothar AJ Heinemann, Professor | Center for Epidemiology and Health Research |
Study ID Numbers: | 2001_1 |
Study First Received: | March 14, 2006 |
Last Updated: | April 21, 2006 |
ClinicalTrials.gov Identifier: | NCT00302835 History of Changes |
Health Authority: | Germany: Federal Institute for Drugs and Medical Devices |
Analgesics Chronic Kidney Failure |
Renal Insufficiency Urologic Diseases Renal Insufficiency, Chronic Kidney Failure, Chronic |
Peripheral Nervous System Agents Analgesics Kidney Diseases Kidney Failure |
Renal Insufficiency Physiological Effects of Drugs Kidney Failure, Chronic Pharmacologic Actions Urologic Diseases Renal Insufficiency, Chronic Sensory System Agents |
Therapeutic Uses Kidney Diseases Analgesics Peripheral Nervous System Agents Central Nervous System Agents Kidney Failure |