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Metastatic Breast CancerPhase 1NCT00169000

Safety Study of a New Schedule of Capecitabine and Docetaxel to Treat Cancers

A Phase 1 study testing Capecitabine and Docetaxel in people with Metastatic Breast Cancer, run by Dartmouth-Hitchcock Medical Center at 1 site in United States.

Completed

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

Official record
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Trial summary

The combination of capecitabine and docetaxel is given to treat several different types of cancer. Capecitabine is usually given by mouth for 14 days, and docetaxel is given IV on the first day of capecitabine. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Metastatic Breast Cancer
What is being tested?
Capecitabine and Docetaxel
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
Jan 2003to Mar 2006
Phase
Phase 1
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with a histologically or cytologically proven metastatic solid tumor.
  • Patients with measurable disease or an evaluable bone lesion that will not undergo biopsy.
  • Patients treated within the additional cohort at MTD will have metastatic breast cancer with a site of disease that is amenable to percutaneous FNA and must be willing to undergo serial FNA biopsies of their primary tumor.
  • Age > 18 years.
  • Life expectancy of at least 6 months.
  • ECOG performance status 0-2.
  • Adequate hematologic, hepatic, and renal function
  • Patients must have an intact upper gastrointestinal tract, be able to swallow tablets, and not have a malabsorption syndrome.

Who cannot join

  • No significant uncontrolled infectious or cardiovascular disease, or a myocardial infarction within the prior 12 months.
  • No prior organ allograft.
  • No prior treatment with capecitabine or with docetaxel.
  • No prior unanticipated severe reaction to fluoropyrimidine therapy or known hypersensitivity to 5-fluorouracil.
  • No concurrent antacid therapy is allowed.
  • No other significant medical/surgical diseases.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Norris Cotton Cancer Center

    Lebanon, New Hampshire, 03756

Other trials in United States

About this study

Official title: Phase I Study of a Novel Schedule of Capecitabine and Docetaxel in Patients With Advanced Solid Tumors

The combination of capecitabine and docetaxel is given to treat several different types of cancer. Capecitabine is usually given by mouth for 14 days, and docetaxel is given IV on the first day of capecitabine. The effects of changes in the schedule of the combination of docetaxel and capecitabine has been examined in human breast cancer cells. A capecitabine by-product was given orally to breast cancer-bearing animals for 14 consecutive days. Docetaxel was given IV at a variety of times between days 1 and 15. The greatest reductions in the volume of the cancer were seen when animals were treated with docetaxel between days 6 and 10. In two other breast cancer models, the maximal degree of delay in growth of the tumors was achieved when the animals were treated with docetaxel on day 8 of a 14 day course of capecitabine. The extent of tumor response was not explained by changes in tumor levels of the enzyme thymidine phosphorylase, which is thought to be the mechanism behind the interaction of capecitabine and docetaxel. In the breast cancer cells, capecitabine increases the level of proteins which promote death of cancer cells, and it inhibits the levels of proteins which block death of cancer cells.

Our hypothesis is that capecitabine and docetaxel interact with each other, because capecitabine primes the pro-death machinery of the cell by increasing the ratio of death-promoting proteins to death-inhibiting proteins. Cells are more susceptible to killing by docetaxel when the pro-death machinery is activated by capecitabine.

This is a safety study to find the highest dose of capecitabine that can be given safely for 14 days, in combination with docetaxel given at a fixed dose on day 8. Once this dose of capecitabine has been determined, an additional nine patients with tumors that can be biopsied will be treated at this dose, and levels of capecitabine, its byproducts, and docetaxel will be measured in the bloodstream. Biopsies of tumors will also be taken before and after the docetaxel is given, and the levels of pro-death and anti-death proteins will be measured.

Read the detailed description

This is a phase I study using an accelerated titration design to determine the maximum tolerated dose (MTD) of capecitabine given orally on a BID schedule from days 1-14, in combination with docetaxel given at a fixed dose of 75 mg/m2 IV on day 8. Once the MTD of capecitabine has been determined, an additional nine patients with accessible tumors will be treated at the MTD. Pharmacokinetics of plasma capecitabine, 5-FU, 5'-deoxy-5-fluorouridine, and docetaxel will be assayed in these nine patients, and tumor biopsies will be taken to assess Bax:Bcl-2 ratios and Bcl-2 phosphorylation at several time points. The primary aim of this study will be to determine the maximum tolerated dose and dose limiting toxicities of capecitabine when given with a fixed dose of docetaxel on day 8 of a 21 day schedule. Secondary aims will include assessment of the pharmacokinetics of capecitabine and docetaxel on this schedule, and determination of intratumoral Bax:Bcl-2, Bcl-2 phosphorylation, and DPD expression, and correlation with clinical toxicities and antitumor response.

Being tested
Capecitabine, Docetaxel
Keywords
breast cancer, capecitabine, docetaxel, pharmacokinetic/pharmacodynamic, bcl-2, bax
Medical subject headings
Breast Neoplasms

What participants receive

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

  • CapecitabineDrug

    Also called Xeloda

    Capecitabine at the following dose levels for 14 days every 21 days, beginning with dose level 1

    Dose level -2 600 mg/m2 po BID

    Dose level -1 700 mg/m2 po BID

    Dose level 1 825 mg/m2 po BID

    Dose level 2 1000 mg/m2 po BID

  • DocetaxelDrug

    Also called Taxotere

    75 mg/m2 over one hour on day 8 of each cycle

Study groups in NCT00169000
Study groupRoleWhat they receive
Capecitabine and DocetaxelExperimentalEscalating doses of capecitabine days 1-14 with a fixed dose of docetaxel on Day 8 of a 21 day cycle
Receives: Drug: Capecitabine; Drug: Docetaxel

What is being measured

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

  1. To determine the maximum tolerated dose, and dose limiting toxicity of capecitabine when given daily for 14 days with docetaxel given on day 8 of a 21 day cycle

    Measured: 3 weeks

Secondary outcomes (3)
  1. To determine the pharmacokinetic profile of capecitabine, 5-fluorouracil, and 5'-deoxy-5-fluorouridine following administration of docetaxel on day 8.

    Measured: 9 days

  2. To determine the expression of Bax, Bcl-2, and phosphorylated Bcl-2 at baseline and again on days 8 and 9 of capecitabine when given at the MTD

    Measured: 9 days

  3. To define pharmacodynamic relationships between observed changes in dihydropyrimidine dehydrogenase (DPD) and altered expression of Bax and Bcl-2 with clinical toxicities and antitumor response

    Measured: 9 days

Timeline

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

  1. First posted15 Sep 2005 (estimated)
  2. Study startJan 2003
  3. Primary completionSep 2005
  4. Study completionMar 2006

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 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00169000
Sponsor's protocol ID
D-0139
Status last verified
Aug 2009
First submitted
9 Sep 2005
Last updated
6 Aug 2009
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Capecitabine and Docetaxel in people with Metastatic Breast Cancer, run by Dartmouth-Hitchcock Medical Center 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 8 inclusion and 6 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 6 Aug 2009. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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.

What does the primary outcome measure?

To determine the maximum tolerated dose, and dose limiting toxicity of capecitabine when given daily for 14 days with docetaxel given on day 8 of a 21 day cycle (time frame: 3 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 6 Aug 2009.

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