Breast CancerNCT00228930
Tamoxifen Pharmacogenetics and Clinical Effects
An observational study of Breast Cancer, run by National Institute of General Medical Sciences (NIGMS) at 2 sites in United States.
Trial summary
The purpose of this research is to try to identify which women who take tamoxifen are likely to suffer from hot flashes or are more likely to have other side effects or benefits from the drug. Read more about this study
- Who is it for?
- Ages 18 to 70 years, women only
- Conditions the study is for
- Breast Cancer
- What is being tested?
- Tamoxifen (pharmacodynamic analysis)
- How many people
- 297 participants
- Where
- 2 sitesUnited States
- Study dates
- Sep 2002to Aug 2007
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 70 years
- Women only
- No healthy volunteers
- Adult, Older adult
Study population: Eligible patients included women 18 years or older, non-pregnant or lactating, who were recommended tamoxifen for adjuvant treatment or for the prevention of breast cancer from the oncology clinics.
Who may be able to join
- 18-years or older
- Women with a prior breast cancer or who are at a high risk for developing the disease and about to start tamoxifen therapy.
- Participants must not be treated with concomitant chemotherapy or hormone therapy other than tamoxifen. They must not have ovarian ablation or currently being treated with radiation therapy and/or chronic corticosteroids.
- The participant must not be taking anti-hot flash therapy (clonidine, bellergal, megestrol acetate). Vitamin E, selective serotonin reuptake inhibitors, or herbal remedies are allowed provided that the participant has been taking the remedy for at least 4 weeks and intends to continue the remedy for at least the first month while on the study, and allows for one-month follow up evaluation (hot flash diaries and blood samples).
- The participant must not be pregnant or lactating.
- The participant is able and willing to sign an informed consent.
Who cannot join
None listed.
Trial locations and contacts
2 sites in 1 country.
United States2 sites
UMCCC
Ann Arbor, Michigan, 48109
Indiana University
Indianapolis, Indiana, 46202
About this study
Official title: A Pilot Trial Correlating Metabolic Profile of Tamoxifen With Pharmacogenetic Predictors and Clinical Effects
The purpose of this research is to try to identify which women who take tamoxifen are likely to suffer from hot flashes or are more likely to have other side effects or benefits from the drug. The researchers will do so by determining whether there are mutations that normally occur in human DNA that might influence the way individuals respond to medications.
Read the detailed description
The study will test the following hypotheses.
- There is a relationship between genetically distinct metabolic profiles of tamoxifen and the frequency and severity of hot flashes in women on chronic tamoxifen therapy.
- Genetically distinct metabolic profiles for tamoxifen effect lipid profile, bone turnover metabolites and bone mineral density, and coagulation factors.
- Different genetic profiles of estrogen responsive genes influence the pharmacodynamic effects of tamoxifen in cardiovascular system.
- Conditions
- Breast Cancer
- Being tested
- Tamoxifen (pharmacodynamic analysis)
- Keywords
- Breast Cancer, Tamoxifen, Prevention
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Tamoxifen (pharmacodynamic analysis)Drug
Tamoxifen 20mg po daily
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Sep 2005 (estimated)
- Study startSep 2002
- Study completionAug 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Breast CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 297 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Institute of General Medical Sciences (NIGMS)
- Sponsor type
- US National Institutes of Health
- Collaborators
- Indiana University
- Investigators
- David Flockhart, MD, PhD, Principal investigator, Indiana University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00228930
- Sponsor's protocol ID
- 0208-14
- Other IDs
- U01GM061373-05
- Status last verified
- Nov 2007
- First submitted
- 27 Sep 2005
- Last updated
- 25 Sep 2008
- Results posted
- No
Publications
Rae JM, Goetz MP, Hayes DF, Ingle JN, Li L, Storniolo AM, Stearns V, Flockhart DA. CYP2D6 genotype and tamoxifen response. Breast Cancer Res. 2005 Jul 29;7(5):E6. doi: 10.1186/bcr1297. No abstract available.
PubMed 16168100Lim YC, Desta Z, Flockhart DA, Skaar TC. Endoxifen (4-hydroxy-N-desmethyl-tamoxifen) has anti-estrogenic effects in breast cancer cells with potency similar to 4-hydroxy-tamoxifen. Cancer Chemother Pharmacol. 2005 May;55(5):471-8. doi: 10.1007/s00280-004-0926-7. Epub 2005 Feb 1.
PubMed 15685451Jin Y, Desta Z, Stearns V, Ward B, Ho H, Lee KH, Skaar T, Storniolo AM, Li L, Araba A, Blanchard R, Nguyen A, Ullmer L, Hayden J, Lemler S, Weinshilboum RM, Rae JM, Hayes DF, Flockhart DA. CYP2D6 genotype, antidepressant use, and tamoxifen metabolism during adjuvant breast cancer treatment. J Natl Cancer Inst. 2005 Jan 5;97(1):30-9. doi: 10.1093/jnci/dji005.
PubMed 15632378Stearns V, Johnson MD, Rae JM, Morocho A, Novielli A, Bhargava P, Hayes DF, Desta Z, Flockhart DA. Active tamoxifen metabolite plasma concentrations after coadministration of tamoxifen and the selective serotonin reuptake inhibitor paroxetine. J Natl Cancer Inst. 2003 Dec 3;95(23):1758-64. doi: 10.1093/jnci/djg108.
PubMed 14652237Lee KH, Ward BA, Desta Z, Flockhart DA, Jones DR. Quantification of tamoxifen and three metabolites in plasma by high-performance liquid chromatography with fluorescence detection: application to a clinical trial. J Chromatogr B Analyt Technol Biomed Life Sci. 2003 Jul 5;791(1-2):245-53. doi: 10.1016/s1570-0232(03)00218-6.
PubMed 12798184Hayes DF, Skaar TC, Rae JM, Henry NL, Nguyen AT, Stearns V, Li L, Philips S, Desta Z, Flockhart DA; Consortium on Breast Cancer Pharmacogenomics (COBRA). Estrogen receptor genotypes, menopausal status, and the effects of tamoxifen on lipid levels: revised and updated results. Clin Pharmacol Ther. 2010 Nov;88(5):626-9. doi: 10.1038/clpt.2010.143. Epub 2010 Sep 8.
PubMed 20827267Henry NL, Rae JM, Li L, Azzouz F, Skaar TC, Desta Z, Sikora MJ, Philips S, Nguyen AT, Storniolo AM, Hayes DF, Flockhart DA, Stearns V; Consortium on Breast Cancer Pharmacogenomics Investigators. Association between CYP2D6 genotype and tamoxifen-induced hot flashes in a prospective cohort. Breast Cancer Res Treat. 2009 Oct;117(3):571-5. doi: 10.1007/s10549-009-0309-1. Epub 2009 Jan 20.
PubMed 19153830Ntukidem NI, Nguyen AT, Stearns V, Rehman M, Schott A, Skaar T, Jin Y, Blanche P, Li L, Lemler S, Hayden J, Krauss RM, Desta Z, Flockhart DA, Hayes DF; Consortium on Breast Cancer Pharmacogenomics. Estrogen receptor genotypes, menopausal status, and the lipid effects of tamoxifen. Clin Pharmacol Ther. 2008 May;83(5):702-10. doi: 10.1038/sj.clpt.6100343. Epub 2007 Aug 22.
PubMed 17713466
Study at a glance
From the registry record, last updated by the sponsor on 25 Sep 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Pilot Trial Correlating Metabolic Profile of Tamoxifen With Pharmacogenetic Predictors and Clinical Effects
- ClinicalTrials.gov ID
- NCT00228930
- Acronym / sponsor ID
- 0208-14
- Conditions
- Breast Cancer
- Keywords
- Breast Cancer, Tamoxifen, Prevention
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 297 participants (actual)
- Lead sponsor
- National Institute of General Medical Sciences (NIGMS)US National Institutes of Health
- Collaborators
- Indiana University
- Study start
- Sep 2002
- Study completion
- Aug 2007 (actual)
- First posted
- 29 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this research is to try to identify which women who take tamoxifen are likely to suffer from hot flashes or are more likely to have other side effects or benefits from the drug. The researchers will do so by determining whether there are mutations that normally occur in human DNA that might influence the way individuals respond to medications.
Detailed description
The study will test the following hypotheses.
- There is a relationship between genetically distinct metabolic profiles of tamoxifen and the frequency and severity of hot flashes in women on chronic tamoxifen therapy.
- Genetically distinct metabolic profiles for tamoxifen effect lipid profile, bone turnover metabolites and bone mineral density, and coagulation factors.
- Different genetic profiles of estrogen responsive genes influence the pharmacodynamic effects of tamoxifen in cardiovascular system.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 to 70 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Eligible patients included women 18 years or older, non-pregnant or lactating, who were recommended tamoxifen for adjuvant treatment or for the prevention of breast cancer from the oncology clinics.
Key inclusion criteria (6 listed)
- 18-years or older
- Women with a prior breast cancer or who are at a high risk for developing the disease and about to start tamoxifen therapy.
- Participants must not be treated with concomitant chemotherapy or hormone therapy other than tamoxifen. They must not have ovarian ablation or currently being treated with radiation therapy and/or chronic corticosteroids.
- The participant must not be taking anti-hot flash therapy (clonidine, bellergal, megestrol acetate). Vitamin E, selective serotonin reuptake inhibitors, or herbal remedies are allowed provided that the participant has been taking the remedy for at least 4 weeks and intends to continue the remedy for at least the first month while on the study, and allows for one-month follow up evaluation (hot flash diaries and blood samples).
- The participant must not be pregnant or lactating.
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Tamoxifen (pharmacodynamic analysis)Tamoxifen 20mg po daily | Drug | – |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Sep 2008.
- Results publication: PubMed 16168100Rae JM, Goetz MP, Hayes DF, Ingle JN, Li L, Storniolo AM, Stearns V, Flockhart DA. CYP2D6 genotype and tamoxifen response. Breast Cancer Res. 2005 Jul 29;7(5):E6. doi: 10.1186/bcr1297. No abstract available.
- Results publication: PubMed 15685451Lim YC, Desta Z, Flockhart DA, Skaar TC. Endoxifen (4-hydroxy-N-desmethyl-tamoxifen) has anti-estrogenic effects in breast cancer cells with potency similar to 4-hydroxy-tamoxifen. Cancer Chemother Pharmacol. 2005 May;55(5):471-8. doi: 10.1007/s00280-004-0926-7. Epub 2005 Feb 1.
- Results publication: PubMed 15632378Jin Y, Desta Z, Stearns V, Ward B, Ho H, Lee KH, Skaar T, Storniolo AM, Li L, Araba A, Blanchard R, Nguyen A, Ullmer L, Hayden J, Lemler S, Weinshilboum RM, Rae JM, Hayes DF, Flockhart DA. CYP2D6 genotype, antidepressant use, and tamoxifen metabolism during adjuvant breast cancer treatment. J Natl Cancer Inst. 2005 Jan 5;97(1):30-9. doi: 10.1093/jnci/dji005.
- Results publication: PubMed 14652237Stearns V, Johnson MD, Rae JM, Morocho A, Novielli A, Bhargava P, Hayes DF, Desta Z, Flockhart DA. Active tamoxifen metabolite plasma concentrations after coadministration of tamoxifen and the selective serotonin reuptake inhibitor paroxetine. J Natl Cancer Inst. 2003 Dec 3;95(23):1758-64. doi: 10.1093/jnci/djg108.
- Results publication: PubMed 12798184Lee KH, Ward BA, Desta Z, Flockhart DA, Jones DR. Quantification of tamoxifen and three metabolites in plasma by high-performance liquid chromatography with fluorescence detection: application to a clinical trial. J Chromatogr B Analyt Technol Biomed Life Sci. 2003 Jul 5;791(1-2):245-53. doi: 10.1016/s1570-0232(03)00218-6.
- Derived from this study: PubMed 20827267Hayes DF, Skaar TC, Rae JM, Henry NL, Nguyen AT, Stearns V, Li L, Philips S, Desta Z, Flockhart DA; Consortium on Breast Cancer Pharmacogenomics (COBRA). Estrogen receptor genotypes, menopausal status, and the effects of tamoxifen on lipid levels: revised and updated results. Clin Pharmacol Ther. 2010 Nov;88(5):626-9. doi: 10.1038/clpt.2010.143. Epub 2010 Sep 8.
- Derived from this study: PubMed 19153830Henry NL, Rae JM, Li L, Azzouz F, Skaar TC, Desta Z, Sikora MJ, Philips S, Nguyen AT, Storniolo AM, Hayes DF, Flockhart DA, Stearns V; Consortium on Breast Cancer Pharmacogenomics Investigators. Association between CYP2D6 genotype and tamoxifen-induced hot flashes in a prospective cohort. Breast Cancer Res Treat. 2009 Oct;117(3):571-5. doi: 10.1007/s10549-009-0309-1. Epub 2009 Jan 20.
- Derived from this study: PubMed 17713466Ntukidem NI, Nguyen AT, Stearns V, Rehman M, Schott A, Skaar T, Jin Y, Blanche P, Li L, Lemler S, Hayden J, Krauss RM, Desta Z, Flockhart DA, Hayes DF; Consortium on Breast Cancer Pharmacogenomics. Estrogen receptor genotypes, menopausal status, and the lipid effects of tamoxifen. Clin Pharmacol Ther. 2008 May;83(5):702-10. doi: 10.1038/sj.clpt.6100343. Epub 2007 Aug 22.
- The Pharmacogenetics and Pharmacogenomics Knowledge BaseLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
David Flockhart, MD, PhD principal investigator
Indiana University
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Breast Cancer, run by National Institute of General Medical Sciences (NIGMS) at 2 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 25 Sep 2008. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00228930, which also lists 8 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Sep 2008.