Breast CancerPhase 3IBIS-1NCT00002644
Tamoxifen for the Prevention of Breast Cancer in High-Risk Women
A Phase 3 study testing Tamoxifen Citrate 20Mg Tab in people with Breast Cancer, run by Queen Mary University of London at 1 site in United Kingdom.
Trial summary
The International Breast Cancer Intervention Study I (IBIS-I) was designed to investigate the use of tamoxifen in preventing breast cancer in women with a higher risk of developing the disease. Recruitment of women to IBIS-I ended in March 2001 and it recruited 7154 women from 36 centres in 9 countries. Read more about this study
- Who is it for?
- Ages 35 to 70 years, women only
- Conditions the study is for
- Breast Cancer
- What is being tested?
- Tamoxifen Citrate 20Mg Tab
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 7,154 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- Jan 1994to 30 Mar 2011
- Phase
- Phase 3
- 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 35 to 70 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- The entry criteria are based on a relative risk of at least two-fold for women aged 45-70 years, four-fold for women aged 40-44 years and ten-fold for women aged 35-39 years.
- Age 45-70 years
- First degree relative who developed breast cancer at age 50 or less
- First degree relative who developed bilateral breast cancer
- Two or more first or second degree relatives who developed breast cancer
- Nulliparous and a first degree relative who developed breast cancer
Show all 14Show fewer
- Benign biopsy with proliferative disease and a first degree relative who developed breast cancer
- Lobular carcinoma in situ
- Atypical ductal or lobular hyperplasia in a benign lesion
- 19)Women at high risk who do not fit into the above categories (risk equivalent)
- These women must have clearly apparent family history indicating at least two fold increased risk of breast cancer.
- Age 40-44 years 8) Two or more first or second degree relatives who developed breast cancer at age 50 or less 9) First degree relative with bilateral breast cancer who developed the first breast cancer at age 50 or less 10) Nulliparous and a first degree relative who developed breast cancer at age 40 or less 11) Benign biopsy with proliferative disease and a first degree relative who developed breast cancer at age 40 or less 12) Lobular carcinoma in situ 13) Atypical ductal or lobular hyperplasia in a benign lesion 14) Women at high risk who do not fit into the above categories (risk equivalent)
- These women must have clearly apparent family history indicating at least four fold increased risk of breast cancer.
- Age 35-39 years 15) Two or more first degree relatives who developed breast cancer at age 50 or less 16) First degree relative with bilateral breast cancer who developed the first breast cancer at age 40 or less 17) Lobular carcinoma in situ 18) Women at high risk who do not fit into the above categories (risk equivalent)
Who cannot join
- Pregnant, or at pregnancy risk. If necessary, pre and peri menopausal women must use non-hormonal contraception during the trial.
- Any previous cancer (except non-melanoma skin cancer or in situ cancer of the cervix).
- Life expectancy of less than 10 years or other medical condition more serious than the risk of breast cancer.
- Psychologically and physically unsuitable for five years tamoxifen/placebo therapy.
- Current treatment with anti-coagulants.
- Previous deep vein thrombosis or pulmonary embolus.
- Current tamoxifen use.
Trial locations and contacts
1 site in 1 country.
United Kingdom1 site
Queen Mary University of London
London, England, EC1M6BQ
About this study
Official title: International Breast Cancer Intervention Study: A Multicentre Trial of Tamoxifen to Prevent Breast Cancer
The International Breast Cancer Intervention Study I (IBIS-I) was designed to investigate the use of tamoxifen in preventing breast cancer in women with a higher risk of developing the disease. Recruitment of women to IBIS-I ended in March 2001 and it recruited 7154 women from 36 centres in 9 countries. The results of the study showed that tamoxifen reduced the incidence of breast cancer by one third in these high risk women but with some serious side effects. IBIS-II was designed to continue the work started in IBIS-I by examining the role of anastrozole in the prevention of breast cancer which we hope will reduce breast cancer by even more than tamoxifen with less serious side effects.
Read the detailed description
Established in 1992, the IBIS-I Study investigated the efficacy of tamoxifen (a hormonal drug used to prevent breast cancer) versus a placebo drug (taken daily for five years) in terms of reduction of breast cancer incidence in pre and postmenopausal women at high risk of developing breast cancer. It was a double-blind, randomised placebo-controlled trial that recruited 7,154 women internationally (of which 4,277 were UK participants), aged 35-70 years. The primary outcome measure was the incidence of breast cancer, including ductal carcinoma in situ (cancer cells in the lining of the breast milk duct) and side effects present in the patients were also investigated.
Recruitment to the study completed in 2001 and the intervention (placebo/tamoxifen) ended in 2007. In early 2008 the Research Ethics Committee (REC) approved the conversion of IBIS-I to an epidemiological cohort study. During 2007-2016 participants were followed-up via an annual postal questionnaire.
In 2002, initial results found that tamoxifen reduced the risk of invasive breast cancer by 31%. Mortality from non-breast cancer causes was not increased by tamoxifen. However, the analysis concluded that the overall risk/benefit ratio for the use of tamoxifen in prevention remained unclear and that continued follow-up of trial participants was essential. A 2007 analysis on long-term tamoxifen prophylaxis for breast cancer confirmed the preventive effect of tamoxifen in terms of breast cancer incidence and that this was constant for the entire follow-up period. No reduction in size of benefit was observed for up to ten years following participant randomisation. Additionally, tamoxifen-related side effects such as thrombo-embolism were not increased anymore after the 5-year treatment period. These results therefore demonstrate that the benefit-to-risk ratio of tamoxifen improves with increasing duration of follow-up. Thus, how much additional benefit will be seen long-term remains an important question.
- Conditions
- Breast Cancer
- Being tested
- Tamoxifen Citrate 20Mg Tab, Placebo
- Keywords
- breast cancer, tamoxifen, prevention, IBIS
- 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 Citrate 20Mg TabDrug
Tamoxifen Citrate 20Mg Tab
PlaceboOther
Placebo 20Mg Tab
| Study group | Role | What they receive |
|---|---|---|
| Tamoxifen citrate | Experimental | Tamoxifen citrate 20 mg/day for 5 years Receives: Drug: Tamoxifen Citrate 20Mg Tab |
| Placebo | Placebo comparator | Placebo 20 mg/day for 5 years Receives: Other: Placebo |
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 May 2004 (estimated)
- Study startJan 1994
- Primary completionJan 2001
- Study completion30 Mar 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for Breast CancerStudies of the same condition, open and under way.
- More trials run by Queen Mary University of LondonThe sponsor's other registered studies.
- 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
- Interventional
- Phase
- Phase 3
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 7,154 participants (actual)
Sponsor and investigators
- Lead sponsor
- Queen Mary University of London
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Jack Cuzick, PhD, Study chair, Queen Mary University of London
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00002644
- Sponsor's protocol ID
- CDR0000064151
- Other IDs
- 2005-003091-38, ISRCTN91879928, 2005
- Acronym
- IBIS-1
- Status last verified
- Dec 2024
- First submitted
- 1 Nov 1999
- Last updated
- 11 Dec 2024
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Cuzick J, Warwick J, Pinney E, Duffy SW, Cawthorn S, Howell A, Forbes JF, Warren RM. Tamoxifen-induced reduction in mammographic density and breast cancer risk reduction: a nested case-control study. J Natl Cancer Inst. 2011 May 4;103(9):744-52. doi: 10.1093/jnci/djr079. Epub 2011 Apr 11.
PubMed 21483019Stone J, Warren RM, Pinney E, Warwick J, Cuzick J. Determinants of percentage and area measures of mammographic density. Am J Epidemiol. 2009 Dec 15;170(12):1571-8. doi: 10.1093/aje/kwp313. Epub 2009 Nov 12.
PubMed 19910376Cuzick J, Forbes JF, Sestak I, Cawthorn S, Hamed H, Holli K, Howell A; International Breast Cancer Intervention Study I Investigators. Long-term results of tamoxifen prophylaxis for breast cancer--96-month follow-up of the randomized IBIS-I trial. J Natl Cancer Inst. 2007 Feb 21;99(4):272-82. doi: 10.1093/jnci/djk049.
PubMed 17312304Sestak I, Kealy R, Edwards R, Forbes J, Cuzick J. Influence of hormone replacement therapy on tamoxifen-induced vasomotor symptoms. J Clin Oncol. 2006 Aug 20;24(24):3991-6. doi: 10.1200/JCO.2005.04.3745.
PubMed 16921052Cuzick J, Warwick J, Pinney E, Warren RM, Duffy SW. Tamoxifen and breast density in women at increased risk of breast cancer. J Natl Cancer Inst. 2004 Apr 21;96(8):621-8. doi: 10.1093/jnci/djh106.
PubMed 15100340Cuzick J, Forbes J, Edwards R, Baum M, Cawthorn S, Coates A, Hamed A, Howell A, Powles T; IBIS investigators. First results from the International Breast Cancer Intervention Study (IBIS-I): a randomised prevention trial. Lancet. 2002 Sep 14;360(9336):817-24. doi: 10.1016/s0140-6736(02)09962-2.
PubMed 12243915Warwick J, Pinney E, Warren RM, Duffy SW, Howell A, Wilson M, Cuzick J. Breast density and breast cancer risk factors in a high-risk population. Breast. 2003 Feb;12(1):10-6. doi: 10.1016/s0960-9776(02)00212-6.
PubMed 14659350Sestak I, Kealy R, Nikoloff M, Fontecha M, Forbes JF, Howell A, Cuzick J. Relationships between CYP2D6 phenotype, breast cancer and hot flushes in women at high risk of breast cancer receiving prophylactic tamoxifen: results from the IBIS-I trial. Br J Cancer. 2012 Jul 10;107(2):230-3. doi: 10.1038/bjc.2012.278. Epub 2012 Jun 26.
PubMed 22735900Palva T, Ranta H, Koivisto AM, Pylkkanen L, Cuzick J, Holli K. A double-blind placebo-controlled study to evaluate endometrial safety and gynaecological symptoms in women treated for up to 5 years with tamoxifen or placebo - a substudy for IBIS I Breast Cancer Prevention Trial. Eur J Cancer. 2013 Jan;49(1):45-51. doi: 10.1016/j.ejca.2012.06.015. Epub 2012 Jul 23.
PubMed 22832202Cuzick J, Sestak I, Cawthorn S, Hamed H, Holli K, Howell A, Forbes JF; IBIS-I Investigators. Tamoxifen for prevention of breast cancer: extended long-term follow-up of the IBIS-I breast cancer prevention trial. Lancet Oncol. 2015 Jan;16(1):67-75. doi: 10.1016/S1470-2045(14)71171-4. Epub 2014 Dec 11.
PubMed 25497694Brentnall AR, Cuzick J, Byers H, Segal C, Reuter C, Detre S, Sestak I, Howell A, Powles TJ, Newman WG, Dowsett M. Relationship of ZNF423 and CTSO with breast cancer risk in two randomised tamoxifen prevention trials. Breast Cancer Res Treat. 2016 Aug;158(3):591-6. doi: 10.1007/s10549-016-3885-x. Epub 2016 Jul 11.
PubMed 27400912Cuzick J, Brentnall AR, Segal C, Byers H, Reuter C, Detre S, Lopez-Knowles E, Sestak I, Howell A, Powles TJ, Newman WG, Dowsett M. Impact of a Panel of 88 Single Nucleotide Polymorphisms on the Risk of Breast Cancer in High-Risk Women: Results From Two Randomized Tamoxifen Prevention Trials. J Clin Oncol. 2017 Mar;35(7):743-750. doi: 10.1200/JCO.2016.69.8944. Epub 2016 Dec 28.
PubMed 28029312Smith SG, Sestak I, Howell A, Forbes J, Cuzick J. Participant-Reported Symptoms and Their Effect on Long-Term Adherence in the International Breast Cancer Intervention Study I (IBIS I). J Clin Oncol. 2017 Aug 10;35(23):2666-2673. doi: 10.1200/JCO.2016.71.7439. Epub 2017 Jun 29.
PubMed 28661758
Study at a glance
From the registry record, last updated by the sponsor on 11 Dec 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- International Breast Cancer Intervention Study: A Multicentre Trial of Tamoxifen to Prevent Breast Cancer
- ClinicalTrials.gov ID
- NCT00002644
- Acronym / sponsor ID
- IBIS-1 / CDR0000064151
- Conditions
- Breast Cancer
- Keywords
- breast cancer, tamoxifen, prevention, IBIS
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 7,154 participants (actual)
- Lead sponsor
- Queen Mary University of LondonUniversity, hospital or other
- Study start
- Jan 1994 (actual)
- Primary completion
- Jan 2001 (actual)
- Study completion
- 30 Mar 2011 (actual)
- First posted
- 11 May 2004 (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 International Breast Cancer Intervention Study I (IBIS-I) was designed to investigate the use of tamoxifen in preventing breast cancer in women with a higher risk of developing the disease. Recruitment of women to IBIS-I ended in March 2001 and it recruited 7154 women from 36 centres in 9 countries. The results of the study showed that tamoxifen reduced the incidence of breast cancer by one third in these high risk women but with some serious side effects. IBIS-II was designed to continue the work started in IBIS-I by examining the role of anastrozole in the prevention of breast cancer which we hope will reduce breast cancer by even more than tamoxifen with less serious side effects.
Detailed description
Established in 1992, the IBIS-I Study investigated the efficacy of tamoxifen (a hormonal drug used to prevent breast cancer) versus a placebo drug (taken daily for five years) in terms of reduction of breast cancer incidence in pre and postmenopausal women at high risk of developing breast cancer. It was a double-blind, randomised placebo-controlled trial that recruited 7,154 women internationally (of which 4,277 were UK participants), aged 35-70 years. The primary outcome measure was the incidence of breast cancer, including ductal carcinoma in situ (cancer cells in the lining of the breast milk duct) and side effects present in the patients were also investigated.
Recruitment to the study completed in 2001 and the intervention (placebo/tamoxifen) ended in 2007. In early 2008 the Research Ethics Committee (REC) approved the conversion of IBIS-I to an epidemiological cohort study. During 2007-2016 participants were followed-up via an annual postal questionnaire.
In 2002, initial results found that tamoxifen reduced the risk of invasive breast cancer by 31%. Mortality from non-breast cancer causes was not increased by tamoxifen. However, the analysis concluded that the overall risk/benefit ratio for the use of tamoxifen in prevention remained unclear and that continued follow-up of trial participants was essential. A 2007 analysis on long-term tamoxifen prophylaxis for breast cancer confirmed the preventive effect of tamoxifen in terms of breast cancer incidence and that this was constant for the entire follow-up period. No reduction in size of benefit was observed for up to ten years following participant randomisation. Additionally, tamoxifen-related side effects such as thrombo-embolism were not increased anymore after the 5-year treatment period. These results therefore demonstrate that the benefit-to-risk ratio of tamoxifen improves with increasing duration of follow-up. Thus, how much additional benefit will be seen long-term remains an important question.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Tamoxifen citrate | Experimental | Drug: Tamoxifen Citrate 20Mg TabTamoxifen citrate 20 mg/day for 5 years |
| Placebo | Placebo comparator | Other: PlaceboPlacebo 20 mg/day for 5 years |
Who may qualify
- Ages
- 35 to 70 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (14 listed)
- The entry criteria are based on a relative risk of at least two-fold for women aged 45-70 years, four-fold for women aged 40-44 years and ten-fold for women aged 35-39 years.
- Age 45-70 years
- First degree relative who developed breast cancer at age 50 or less
- First degree relative who developed bilateral breast cancer
- Two or more first or second degree relatives who developed breast cancer
Key exclusion criteria (7 listed)
- Pregnant, or at pregnancy risk. If necessary, pre and peri menopausal women must use non-hormonal contraception during the trial.
- Any previous cancer (except non-melanoma skin cancer or in situ cancer of the cervix).
- Life expectancy of less than 10 years or other medical condition more serious than the risk of breast cancer.
- Psychologically and physically unsuitable for five years tamoxifen/placebo therapy.
- Current treatment with anti-coagulants.
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 Citrate 20Mg TabTamoxifen Citrate 20Mg Tab | Drug | Tamoxifen citrate |
| PlaceboPlacebo 20Mg Tab | Other | Placebo |
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 11 Dec 2024.
- Results publication: PubMed 21483019Cuzick J, Warwick J, Pinney E, Duffy SW, Cawthorn S, Howell A, Forbes JF, Warren RM. Tamoxifen-induced reduction in mammographic density and breast cancer risk reduction: a nested case-control study. J Natl Cancer Inst. 2011 May 4;103(9):744-52. doi: 10.1093/jnci/djr079. Epub 2011 Apr 11.
- Results publication: PubMed 19910376Stone J, Warren RM, Pinney E, Warwick J, Cuzick J. Determinants of percentage and area measures of mammographic density. Am J Epidemiol. 2009 Dec 15;170(12):1571-8. doi: 10.1093/aje/kwp313. Epub 2009 Nov 12.
- Results publication: PubMed 17312304Cuzick J, Forbes JF, Sestak I, Cawthorn S, Hamed H, Holli K, Howell A; International Breast Cancer Intervention Study I Investigators. Long-term results of tamoxifen prophylaxis for breast cancer--96-month follow-up of the randomized IBIS-I trial. J Natl Cancer Inst. 2007 Feb 21;99(4):272-82. doi: 10.1093/jnci/djk049.
- Results publication: PubMed 16921052Sestak I, Kealy R, Edwards R, Forbes J, Cuzick J. Influence of hormone replacement therapy on tamoxifen-induced vasomotor symptoms. J Clin Oncol. 2006 Aug 20;24(24):3991-6. doi: 10.1200/JCO.2005.04.3745.
- Results publication: PubMed 15100340Cuzick J, Warwick J, Pinney E, Warren RM, Duffy SW. Tamoxifen and breast density in women at increased risk of breast cancer. J Natl Cancer Inst. 2004 Apr 21;96(8):621-8. doi: 10.1093/jnci/djh106.
- Results publication: PubMed 12243915Cuzick J, Forbes J, Edwards R, Baum M, Cawthorn S, Coates A, Hamed A, Howell A, Powles T; IBIS investigators. First results from the International Breast Cancer Intervention Study (IBIS-I): a randomised prevention trial. Lancet. 2002 Sep 14;360(9336):817-24. doi: 10.1016/s0140-6736(02)09962-2.
- Results publication: PubMed 14659350Warwick J, Pinney E, Warren RM, Duffy SW, Howell A, Wilson M, Cuzick J. Breast density and breast cancer risk factors in a high-risk population. Breast. 2003 Feb;12(1):10-6. doi: 10.1016/s0960-9776(02)00212-6.
- Results publication: PubMed 22735900Sestak I, Kealy R, Nikoloff M, Fontecha M, Forbes JF, Howell A, Cuzick J. Relationships between CYP2D6 phenotype, breast cancer and hot flushes in women at high risk of breast cancer receiving prophylactic tamoxifen: results from the IBIS-I trial. Br J Cancer. 2012 Jul 10;107(2):230-3. doi: 10.1038/bjc.2012.278. Epub 2012 Jun 26.
- Results publication: PubMed 22832202Palva T, Ranta H, Koivisto AM, Pylkkanen L, Cuzick J, Holli K. A double-blind placebo-controlled study to evaluate endometrial safety and gynaecological symptoms in women treated for up to 5 years with tamoxifen or placebo - a substudy for IBIS I Breast Cancer Prevention Trial. Eur J Cancer. 2013 Jan;49(1):45-51. doi: 10.1016/j.ejca.2012.06.015. Epub 2012 Jul 23.
- Results publication: PubMed 25497694Cuzick J, Sestak I, Cawthorn S, Hamed H, Holli K, Howell A, Forbes JF; IBIS-I Investigators. Tamoxifen for prevention of breast cancer: extended long-term follow-up of the IBIS-I breast cancer prevention trial. Lancet Oncol. 2015 Jan;16(1):67-75. doi: 10.1016/S1470-2045(14)71171-4. Epub 2014 Dec 11.
- Results publication: PubMed 27400912Brentnall AR, Cuzick J, Byers H, Segal C, Reuter C, Detre S, Sestak I, Howell A, Powles TJ, Newman WG, Dowsett M. Relationship of ZNF423 and CTSO with breast cancer risk in two randomised tamoxifen prevention trials. Breast Cancer Res Treat. 2016 Aug;158(3):591-6. doi: 10.1007/s10549-016-3885-x. Epub 2016 Jul 11.
- Results publication: PubMed 28029312Cuzick J, Brentnall AR, Segal C, Byers H, Reuter C, Detre S, Lopez-Knowles E, Sestak I, Howell A, Powles TJ, Newman WG, Dowsett M. Impact of a Panel of 88 Single Nucleotide Polymorphisms on the Risk of Breast Cancer in High-Risk Women: Results From Two Randomized Tamoxifen Prevention Trials. J Clin Oncol. 2017 Mar;35(7):743-750. doi: 10.1200/JCO.2016.69.8944. Epub 2016 Dec 28.
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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.
Jack Cuzick, PhD study chair
Queen Mary University of London
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Tamoxifen Citrate 20Mg Tab in people with Breast Cancer, run by Queen Mary University of London at 1 site in United Kingdom.
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 14 inclusion and 7 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 11 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United Kingdom. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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 NCT00002644, which also lists 13 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 11 Dec 2024.