Pre-Surgical Study: Effect of Metformin on Breast Cancer Proliferation

A Phase 2 study testing Metformin in people with Breast Cancer, run by Columbia University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Trial summary

The purpose of this pilot study is to use a pre surgical intervention model to evaluate the biologic effects of metformin in women with newly diagnosed early invasive breast cancer. Metformin is a drug commonly used to treat patients with diabetes. This model will be used to evaluate the effects of metformin. Read more about this study

Who is it for?: Ages 21 years and older, women only
Conditions the study is for: Breast Cancer
What is being tested?: Metformin
Could I receive a placebo?: No, everyone receives an active treatment
How many people: 35 participants
Where: 1 siteUnited States
Study dates: 16 Oct 2009to 9 Jan 2017
Phase: Phase 2
Are there results?: Yes, posted in the registrySummary in the doctors' view

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 21 years and older
Women only
No healthy volunteers
Adult, Older adult

Who may be able to join

Histologically-confirmed operable invasive breast cancer or ductal carcinoma in situ (DCIS) who undergo core needle biopsy followed by surgical excision at least 2 weeks after enrollment
Body mass index > 25
Age ≥ 21 years
No prior chemotherapy, radiation therapy, or surgery within 6 months of study entry
Signed informed consent

Who cannot join

History of diabetes mellitus requiring medical therapy
Treatment with other investigational drugs within 6 months of study entry
Significant renal impairment with a creatinine > 1.4 mg/dl
Other serious intercurrent medical illness

Trial locations and contacts

1 site in 1 country.

United States1 site

Columbia University Irving Medical Center
New York, New York, 10032

Other trials in United States

About this study

Official title: Phase II Pre-Surgical Intervention Study for Evaluating the Effect of Metformin on Breast Cancer Proliferation

Read the detailed description

Breast cancer is the most common cancer and the second leading cause of cancer death among women in the United States. Several epidemiologic studies have found an increased risk of breast cancer in women with type 2 diabetes. This association appears to be mediated by a state of hyperinsulinemia and insulin resistance. Population based studies have also found a decreased risk of cancer in diabetic patients taking metformin, an oral biguanide derivative. Proposed mechanisms include its effect on lowering serum insulin levels as well as modulation of cellular signaling pathways which inhibit tumor cellular proliferation.

Conditions: Breast Cancer
Being tested: Metformin
Keywords: Breast Cancer, Metformin
Medical subject headings: Breast Neoplasms

What participants receive

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

MetforminDrug
Also called Metformin hydrochloride
1500 mg per day, divided 500 mg in the morning and 1000 mg in the evening, for at least two weeks prior to surgery

Study groups in NCT00930579
Study group	Role	What they receive
Metformin	Experimental	Women with newly diagnosed early invasive breast cancer will receive Metformin Receives: Drug: Metformin

What is being measured

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

Tumor Proliferation in Tumor Specimens
This outcome measure examines the changes in tumor proliferation as measured by the amount of Ki-67 protein in the tumor.
Measured: Baseline, up to 4 weeks

Timeline

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

16 Oct 20099 Jan 2017

First posted30 Jun 2009 (estimated)
Study start16 Oct 2009
Primary completion10 May 2012
Study completion9 Jan 2017

Resources

Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
Publications (2)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 Columbia UniversityThe 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 2
Primary purpose: Treatment
Allocation: Not applicable
Intervention model: Single group
Masking: None (open label)
Enrolment: 35 participants (actual)

IDs, dates and publications

ClinicalTrials.gov ID: NCT00930579
Sponsor's protocol ID: AAAD6525
Status last verified: Oct 2022
First submitted: 29 Jun 2009
Last updated: 20 Oct 2022
Results posted: Yes, on ClinicalTrials.gov
Data monitoring committee: Yes
FDA-regulated drug: Yes
FDA-regulated device: No
Individual data sharing: No

Publications

Kalinsky K, Zheng T, Hibshoosh H, Du X, Mundi P, Yang J, Refice S, Feldman SM, Taback B, Connolly E, Crew KD, Maurer MA, Hershman DL. Proteomic modulation in breast tumors after metformin exposure: results from a "window of opportunity" trial. Clin Transl Oncol. 2017 Feb;19(2):180-188. doi: 10.1007/s12094-016-1521-1. Epub 2016 Jun 15.
PubMed 27305912
Kalinsky K, Crew KD, Refice S, Xiao T, Wang A, Feldman SM, Taback B, Ahmad A, Cremers S, Hibshoosh H, Maurer M, Hershman DL. Presurgical trial of metformin in overweight and obese patients with newly diagnosed breast cancer. Cancer Invest. 2014 May;32(4):150-7. doi: 10.3109/07357907.2014.889706. Epub 2014 Mar 7.
PubMed 24605899

Want to know more?

The sponsor has not listed a contact. The official record may have more details.

Talk to your doctor first and take this page with you. Only the study team can confirm whether you can join.

Questions to ask the study team

What is the study trying to find out?
What would I need to do, and how often would I visit?
Could I receive a placebo instead of the treatment?
What are the possible risks and benefits for me?
Will it cost me anything? Are travel or time paid for?
Can I keep seeing my own doctor during the study?
What happens when the study ends?

See locations

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Testing Whether Hormone Therapy With Ribociclib is as Effective as Chemotherapy Followed by Hormone Therapy With Ribociclib for the Treatment of High Anatomic Stage Breast Cancer With Low Recurrence Risk, The RxFINE-Low Trial
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All Breast Cancer trials

Study at a glance

From the registry record, last updated by the sponsor on 20 Oct 2022. Recruitment status is as the sponsor reported it: confirm with the study team.

Official title: Phase II Pre-Surgical Intervention Study for Evaluating the Effect of Metformin on Breast Cancer Proliferation
ClinicalTrials.gov ID: NCT00930579
Acronym / sponsor ID: AAAD6525
Conditions: Breast Cancer
Keywords: Breast Cancer, Metformin
Phase: Phase 2
Study type: Interventional
Recruitment status: Completed
Enrolment: 35 participants (actual)
Lead sponsor: Columbia UniversityUniversity, hospital or other
Collaborators: Breast Cancer Research Foundation
Study start: 16 Oct 2009 (actual)
Primary completion: 10 May 2012 (actual)
Study completion: 9 Jan 2017 (actual)
First posted: 30 Jun 2009 (estimated)
Results: Posted 20 Oct 2022

Clinical summary

The research question as the sponsor registered it. This describes what the study plans to test, not what it found.

Detailed description

Study design

Primary purpose: Treatment
Allocation: Not applicable
Intervention model: Single group
Masking: None (open label)
Number of arms: 1

Arm	Type	Receives
Metformin	Experimental	Drug: MetforminWomen with newly diagnosed early invasive breast cancer will receive Metformin

Who may qualify

Ages: 21 years and older
Sex: Female only
Healthy volunteers: Not accepted
Age groups: Adult, Older adult

Key inclusion criteria (5 listed)

Histologically-confirmed operable invasive breast cancer or ductal carcinoma in situ (DCIS) who undergo core needle biopsy followed by surgical excision at least 2 weeks after enrollment
Body mass index > 25
Age ≥ 21 years
No prior chemotherapy, radiation therapy, or surgery within 6 months of study entry
Signed informed consent

Key exclusion criteria (4 listed)

History of diabetes mellitus requiring medical therapy
Treatment with other investigational drugs within 6 months of study entry
Significant renal impairment with a creatinine > 1.4 mg/dl
Other serious intercurrent medical illness

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
MetforminAlso: Metformin hydrochloride1500 mg per day, divided 500 mg in the morning and 1000 mg in the evening, for at least two weeks prior to surgery	Drug	Metformin

Primary outcome

Tumor Proliferation in Tumor Specimens
Time frame: Baseline, up to 4 weeks
This outcome measure examines the changes in tumor proliferation as measured by the amount of Ki-67 protein in the tumor.

Results and safety

Results posted to the registry on 20 Oct 2022, as reported by the sponsor. Figures are copied from the record, not re-analysed. Full results on ClinicalTrials.gov.

Participant flow

Group	Started	Completed
Metformin	35	33

Primary outcome: Tumor Proliferation in Tumor Specimens

Time frame: Baseline, up to 4 weeks. Mean (Standard Deviation). Unit: percentage of ki-67 positive cells

Measure	Metformin n = 33
Premetformin Tumor Sample	2.17 (1.60)
Post Metformin Tumor Sample	2.165 (1.67)

Metformin: Mean Difference (Final Values): -0.006, p = 0.98, paired t-test

Population analysed: Of the evaluable metformin-treated patients, 33 participants were included in the analysis.

Adverse events

Time frame: Up to 4 weeks. Other adverse events reported at 5% frequency or more

Group	Serious adverse events	Other adverse events	Deaths
Metformin	0 of 33 (0%)	29 of 33 (87.9%)	0 of 33

Loading the posted results from ClinicalTrials.gov…

Research links

Official record on ClinicalTrials.govLast updated by the sponsor 20 Oct 2022.
Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
Derived from this study: PubMed 27305912Kalinsky K, Zheng T, Hibshoosh H, Du X, Mundi P, Yang J, Refice S, Feldman SM, Taback B, Connolly E, Crew KD, Maurer MA, Hershman DL. Proteomic modulation in breast tumors after metformin exposure: results from a "window of opportunity" trial. Clin Transl Oncol. 2017 Feb;19(2):180-188. doi: 10.1007/s12094-016-1521-1. Epub 2016 Jun 15.
Derived from this study: PubMed 24605899Kalinsky K, Crew KD, Refice S, Xiao T, Wang A, Feldman SM, Taback B, Ahmad A, Cremers S, Hibshoosh H, Maurer M, Hershman DL. Presurgical trial of metformin in overweight and obese patients with newly diagnosed breast cancer. Cancer Invest. 2014 May;32(4):150-7. doi: 10.3109/07357907.2014.889706. Epub 2014 Mar 7.
Individual participant dataSharing planned: No

Related trials for Breast Cancer

Active, not recruiting
Streamlined Geriatric and Oncological Evaluation Based On IC Technology
Breast Cancer, Comorbidities and Coexisting Conditions
RecruitingPhase 2
Gene Signatures to Guide HR+MBC Therapy in a Diverse Cohort
Invasive Mammary Carcinoma, Metastatic Breast Cancer
Not yet recruitingObservational study
Comparison of Reliability, Time Cost, and Participant Comfort of Lymphedema Assessments in Upper Extremity
Lymphedema, Upper Extremity Lymphedema
RecruitingPhase 3
A Study of Camrelizumab Plus Chemotherapy in Combination With or Without Famitinib as Neoadjuvant Therapy in Participants With Triple Negative Breast Cancer (BCTOP-T-N01)
TNBC - Triple-Negative Breast Cancer
RecruitingPhase 3
Testing Whether Hormone Therapy With Ribociclib is as Effective as Chemotherapy Followed by Hormone Therapy With Ribociclib for the Treatment of High Anatomic Stage Breast Cancer With Low Recurrence Risk, The RxFINE-Low Trial
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8

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.

Dawn L Hershman, MD principal investigator

Columbia University

1 site in 1 country: see every site and its status.

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Metformin in people with Breast Cancer, run by Columbia University at 1 site 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 5 inclusion and 4 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 20 Oct 2022. 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 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Oct 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Tumor Proliferation in Tumor Specimens (time frame: Baseline, up to 4 weeks). 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 NCT00930579, which also lists 2 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 20 Oct 2022; AzTrials last refreshed its copy on 7 Nov 2026.