AzTrials
AzTrials

Carcinoma, Intraductal, NoninfiltratingPhase 3TAM-01NCT01357772

Trial of Low Dose Tamoxifen in Women With Breast Intraepithelial Neoplasia - Long Term Follow-up

A Phase 3 study testing Tamoxifen in people with Carcinoma, Intraductal, Noninfiltrating and Recurrence, Local Neoplasm, run by Andrea DeCensi at 14 sites in Italy.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
Search all trials

Trial summary

The aim of the study is to evaluate whether tamoxifen at a low dose of 5mg/d reduces in the long term the incidence of invasive breast cancer and ductal carcinoma in situ, DCIS (DIN 1c, 2, 3) of the breast, in woman operated for lobular intraepithelial neoplasia (LIN1, 2 and 3) or ER-positive ductal intraepithelial… Read more about this study

Who is it for?
Ages 18 to 75 years, women only
What is being tested?
Tamoxifen
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
500 participants
Where
14 sitesItaly
Study dates
12 Nov 2008to 31 Dec 2028
Phase
Phase 3
Are there results?
Not yet: the study is under way

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 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Women of age ≥ 18 and < 75 years
  • Women operated on for lobular (LIN 2 and 3) or ER positive or unknown ductal DCIS, i.e DIN 1-3, but DIN 1a excluded) intraepithelial neoplasia in the 5 years (60 months) prior the inclusion in the study. Both incident (diagnosis < 12 months) and prevalent cases diagnosis ≥12, and < 60 months) will be included, including recurrent cases
  • ECOG Performance status ≤ 1
  • Written informed consent

Who cannot join

  • Any type of malignancy, with the exclusion of non-melanoma skin cancer
  • Proliferative disorders of the endometrium such as atypical hyperplasia, endometriosis, unresected polyps, symptomatic myoma
  • Liver, kidney and heart function impairment grade ≥ 2 (CTCAE criteria v.3.0)
  • Any type of retinal disorders, severe cataract and glaucoma
  • Presence of significant risk factors for venous events, including immobilization after trauma within the last 3 months for longer than 2 weeks, deep venous thrombophlebitis or other significant venous thrombotic event,VTE (pulmonary embolism, stroke, etc.)
  • Use of tamoxifen, raloxifene or other selective estrogen receptor modulator (SERMs)
Show all 13Show fewer
  • Use of anastrozole and other aromatase inhibitors (AI) in the last 12 months for ≥ 6 months
  • Dicoumarol anticoagulant therapy in progress
  • Active infections
  • Severe psychiatric disorders or inability to comply to the protocol procedures
  • Geographic inaccessibility or difficulties in ensuring adequate compliance
  • Women who are pregnant or breastfeeding
  • Any other factor which, at the discretion of the investigator, may controindicate the use of tamoxifen

Trial locations and contacts

14 sites in 1 country.

14 sites in 1 country

Italy14 sites
  • IRCCS Istituto Tumori Giovanni Paolo II

    Bari, 70124

  • Ospedale di Carpi "Bernardino Ramazzini"

    Carpi, Modena, 41012

  • Azienda Ospedaliera Mater Domini Catanzaro

    Catanzaro, 88100

  • E.O. Ospedali Galliera

    Genoa, 16128

  • Istituto Scientifico Romagnolo per lo studio e la cura dei tumori

    Meldola, Forlì-Cesena, 47521

  • IEO - European Institute of Oncology IRCCS

    Milan, 20100

  • Azienda Ospedaliera-Universitaria Policlinico di Modena

    Modena, 41100

  • Istituto Nazionale Tumori IRCCS Fondazione G. Pascale

    Naples, 80131

  • ICS Maugeri -Centro Medico di Pavia

    Pavia

  • AUSL - Oncologia Medica

    Ravenna, 48018

  • Azienda Ospedaliera-Universitaria Città della Salute e della Scienza di Torino

    Torino, 10123

  • Ospedali riuniti ASL AL - Ospedale SS. Antonio e Margherita

    Tortona, Alessandria, 15057

  • Azienda Socio-Sanitaria Territoriale Sette Laghi, Varese

    Varese, 21100

  • Azienda ULSS8 Berica

    Vicenza, 36100

Other trials in Italy

About this study

Official title: Randomized Placebo-controlled Phase III Trial of Low Dose Tamoxifen in Women With Breast Intraepithelial Neoplasia - Long Term Follow-up

The aim of the study is to evaluate whether tamoxifen at a low dose of 5mg/d reduces in the long term the incidence of invasive breast cancer and ductal carcinoma in situ, DCIS (DIN 1c, 2, 3) of the breast, in woman operated for lobular intraepithelial neoplasia (LIN1, 2 and 3) or ER-positive ductal intraepithelial neoplasia (DIN 1b, DIN2, DIN3, 1a excluded) of the breast.

To improve the risk-benefit ratio, the use of lower doses of the drug has been proposed.

Read more

Biomarker trials revealed that 5 mg/d was noninferior to 20 mg/d in inhibiting proliferation of breast cancer and normal endometrial tissue.

By contrast, the risk of endometrial cancer si dose-dependent, and the dose reduction can lead a substantial decrease. Morover a dose of 5 mg/day is associated with an overall decrease of the estrogenic activity of tamoxifen on insulin like growth factor (IGF-I), sex hormone-binding globulin (SHBG) and antithrombin-III, with a decrease of venous thromboembolic events. Moreover, tamoxifen exhibits a high tissue distribution, so that a dose of 5 mg/day attains at the breast tissue level a concentration 10 times higher than that needed to inhibit cell growth in vitro.

A prospective cohort study also showed that 10 mg on alternate days halves recurrence of DCIS in postmenopausal women.

It has been shown that the treatment of dysplasia or pre-cancer drives the reduction of the invasive neoplasms onset. This is a chemoprevention trial designed to validatate the low-dose Tamoxifen in women with diseases at high evolutionary risk. The demonstration of efficacy and safety of such a treatment for the prevention of the invasive breast cancer would lead improvements in term of survival and quality of life for the patients at increased risk.

Read the detailed description

Italian, multicenter, phase III trial: controlled, parallel group comparision, randomized (1:1) duble blind, tamoxifen 5 mg/d versus placebo administered for 3 years. A total of 500 women 75 years of age or younger with newly diagnosed non-invasive breast cancer have been included in the study. The long-term study implies a minimum 10 year follow up after treatment completion.

Being tested
Tamoxifen, placebo
Keywords
DCIS, tamoxifen, dose reduction
Medical subject headings
Carcinoma, Intraductal, Noninfiltrating, Neoplasm Recurrence, Local, Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • TamoxifenDrug

    Also called Tamoxifen citrate (ATC code: L02BA01)

  • placeboDrug

Study groups in NCT01357772
Study groupRoleWhat they receive
TamoxifenExperimentaltamoxifen at daily dose of 5 mg for a total treatment time of 3 years
Receives: Drug: Tamoxifen
placeboPlacebo comparatorplacebo at daily dose of 5 mg for a total treatment time of 3 years
Receives: Drug: placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of invasive breast cancer events and DCIS

    Number of neoplastic events, i.e., invasive breast cancer or ductal carcinoma in situ of the breast from the start of treatment up to at least 16 years from treatment initiation.

    Measured: 20 years

Secondary outcomes (3)
  1. Number of other non-invasive breast events

    Number of other non-invasive breast disorders (LCIS, atypical ductal or lobular hyperplasia), endometrial cancer, ovarian cancer, thromboembolic events; bone fractures, cardiovascular and thromboembolic events, clinically manifested cataracts and melanoma; change of mammographic density from the start of treatment up to at least 16 years from treatment initiation.

    Measured: 20 years

  2. Metabolites of tamoxifen and hormone blood level (in a subgroup of women)

    Blood concentrations of metabolites including circulating IGF-I,IGFBP-3, SHBG, hormones (testosterone, estradiol, SHBG, CRP), tamoxifen metabolites (4OH tamoxifen and endoxifen).

    Measured: 20 years

  3. CYP2D6 polymorphisms analysis

    Esploratory analisis of some SNPS of the cytochrome P450 genes involved in tamoxifen metabolism such as CYP2D6.

    Measured: 20 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 May 2011 (estimated)
  2. Study start12 Nov 2008
  3. Primary completion31 Dec 2022
  4. Study completion31 Dec 2028 (estimated)

Resources

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
500 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01357772
Sponsor's protocol ID
GAL 01
Other IDs
2007-007740-10
Acronym
TAM-01
Status last verified
Jul 2023
First submitted
17 May 2011
Last updated
17 Jul 2023
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: Authors are open to share data based on a request for collaboration that includes a data analysis plan. Please send an e-mail to both: andrea.decensi@galliera.it; mpuntoni@ao.pr.it

Publications

  • DeCensi A, Puntoni M, Johansson H, Guerrieri-Gonzaga A, Caviglia S, Avino F, Cortesi L, Ponti A, Pacquola MG, Falcini F, Gulisano M, Digennaro M, Cariello A, Cagossi K, Pinotti G, Lazzeroni M, Serrano D, Briata IM, Buttiron Webber T, Boni L, Bonanni B. Effect Modifiers of Low-Dose Tamoxifen in a Randomized Trial in Breast Noninvasive Disease. Clin Cancer Res. 2021 Jul 1;27(13):3576-3583. doi: 10.1158/1078-0432.CCR-20-4213. Epub 2021 Feb 19.

    PubMed 33608319
  • Lazzeroni M, Serrano D, Dunn BK, Heckman-Stoddard BM, Lee O, Khan S, Decensi A. Oral low dose and topical tamoxifen for breast cancer prevention: modern approaches for an old drug. Breast Cancer Res. 2012 Oct 29;14(5):214. doi: 10.1186/bcr3233.

    PubMed 23106852
  • DeCensi A, Johansson H, Helland T, Puntoni M, Macis D, Aristarco V, Caviglia S, Webber TB, Briata IM, D'Amico M, Serrano D, Guerrieri-Gonzaga A, Bifulco E, Hustad S, Soiland H, Boni L, Bonanni B, Mellgren G. Association of CYP2D6 genotype and tamoxifen metabolites with breast cancer recurrence in a low-dose trial. NPJ Breast Cancer. 2021 Mar 25;7(1):34. doi: 10.1038/s41523-021-00236-6.

    PubMed 33767162
  • Lazzeroni M, Puntoni M, Guerrieri-Gonzaga A, Serrano D, Boni L, Buttiron Webber T, Fava M, Briata IM, Giordano L, Digennaro M, Cortesi L, Falcini F, Serra P, Avino F, Millo F, Cagossi K, Gallerani E, De Simone A, Cariello A, Aprile G, Renne M, Bonanni B, DeCensi A. Randomized Placebo Controlled Trial of Low-Dose Tamoxifen to Prevent Recurrence in Breast Noninvasive Neoplasia: A 10-Year Follow-Up of TAM-01 Study. J Clin Oncol. 2023 Jun 10;41(17):3116-3121. doi: 10.1200/JCO.22.02900. Epub 2023 Mar 14.

    PubMed 36917758
  • DeCensi A, Puntoni M, Guerrieri-Gonzaga A, Caviglia S, Avino F, Cortesi L, Taverniti C, Pacquola MG, Falcini F, Gulisano M, Digennaro M, Cariello A, Cagossi K, Pinotti G, Lazzeroni M, Serrano D, Branchi D, Campora S, Petrera M, Buttiron Webber T, Boni L, Bonanni B. Randomized Placebo Controlled Trial of Low-Dose Tamoxifen to Prevent Local and Contralateral Recurrence in Breast Intraepithelial Neoplasia. J Clin Oncol. 2019 Jul 1;37(19):1629-1637. doi: 10.1200/JCO.18.01779. Epub 2019 Apr 11.

    PubMed 30973790

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Tamoxifen in people with Carcinoma, Intraductal, Noninfiltrating and Recurrence, Local Neoplasm, run by Andrea DeCensi at 14 sites in Italy.

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 4 inclusion and 13 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: under way, not looking for participants, as of the sponsor's last update on 17 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 sites in Italy. 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?

This study is still under way. Results are not available in the source record yet.

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.

What does the primary outcome measure?

Number of invasive breast cancer events and DCIS (time frame: 20 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01357772, which also lists 5 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 17 Jul 2023; AzTrials last refreshed its copy on 8 Nov 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in