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Breast CancerPhase 1/2NCT00416130

Clinical Trial of SAHA in Patients With Breast Cancer

A Phase 1/2 study testing Vorinostat in people with Breast Cancer, run by National University Hospital, Singapore at 2 sites in Singapore.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Purpose: evaluate the safety of Vorinostat. evaluate the effectiveness of Vorinostat in treating breast cancer evaluate how the study subject's body reacts to Vorinostat, how these reactions relate to the subject's genes, and whether protein changes in the subject blood may be used to predict how the subject's cancer… Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Cancer
What is being tested?
Vorinostat
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
49 participants
Where
2 sitesSingapore
Study dates
Jan 2007to Jan 2015
Phase
Phase 1/2
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
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Cytologically or histologically confirmed adenocarcinoma of the breast that is recurrent and/or metastatic
  • Must have measurable disease as defined by RECIST criteria
  • No more than 2 prior chemotherapy for recurrent and/or metastatic disease excluding neoadjuvant or adjuvant chemotherapy
  • Previously received anthracycline- and taxane-containing chemotherapy for treatment of breast cancer in the neoadjuvant, adjuvant, or metastatic setting
  • Must be able to swallow capsules
  • Adequate bone marrow reserve and liver function
  • Women in reproductive age group must agree to practice effective contraception during the entire study period unless documentation of infertility exists.

Who cannot join

  • Prior treatment with any HDAC inhibitor. Patients who have received such agents for other indications, e.g. epilepsy, may enroll in the trial after a 30 day washout period.
  • Known CNS involvement by tumor
  • Concurrent use of oral retinoids or any vitamin A, other than a single multivitamin tablet daily
  • Acute infection requiring intravenous antibiotics or antifungal agents,known HIV infection, active hepatitis B and/or hepatitis C infection
  • Uncontrolled intercurrent illness
  • Cancer other than breast cancer with the exception of basal cell carcinoma or disease that has been in remission for ≥5 years
  • Pregnant or lactating women

Trial locations and contacts

2 sites in 1 country.

Singapore2 sites
  • National University Hospital

    Singapore, 149547

  • National Cancer Centre

    Singapore, 169610

Other trials in Singapore

About this study

Official title: Phase I/II Clinical Trial of Vorinostat in Patients With Recurrent and/or Metastatic Breast Cancer

Purpose:

  • evaluate the safety of Vorinostat.
  • evaluate the effectiveness of Vorinostat in treating breast cancer
  • evaluate how the study subject's body reacts to Vorinostat, how these reactions relate to the subject's genes, and whether protein changes in the subject blood may be used to predict how the subject's cancer will respond to Vorinostat

We hypothesize that Vorinostat, as a novel class of anti-cancer agents, may induce response in patients with recurrent or metastatic breast cancer who have been previously treated with anthracyclines and taxanes. In addition, we hypothesize that serum Vorinostat levels may correlate with clinical response and toxicities, and that Vorinostat may induce unique protein changes in the plasma in responding patients, and that these proteins may in turn be used as predictive biomarkers for treatment response.

Read the detailed description

Breast cancer is sensitive to a range of chemotherapeutics agents, but despite initial sensitivity, resistance typically emerges, resulting in disease relapse or progression. Exploration of novel classes of agents in the treatment of breast cancer is therefore in urgent need. Vorinostat or SAHA, a potent inhibitor of histone deacetylase (HDAC) activity, represents a novel class of anti-cancer agents in early stages of development. Vorinostat is active in inducing differentiation, cell growth arrest, and/or apoptosis in a wide variety of transformed cells in culture, and has shown activity against breast cancer in cell lines and animal models. Exploratory pharmacokinetic analysis has demonstrated that oral Vorinostat has excellent bioavailability. Oral Vorinostat has been administered to more than 300 patients enrolled in completed or ongoing clinical studies. The maximum tolerated dose (MTD) is 400 mg q.d. or 200 mg b.i.d. continuously, or 300 mg b.i.d. x 3 consecutive days per week. Dose-limiting toxicities (DLT) are non-hematologic (anorexia, dehydration, diarrhea and fatigue), that resolve quickly once drug administration is interrupted. This study will evaluate the safety and efficacy of Vorinostat in breast cancer patients who have failed anthracyclines and taxanes, and if proven active, will add an important new class of agents to the treatment armamentarium of breast cancer. The study will be divided into 2 phases: phase I to determine the MTD in our population, starting with 400mg q.d. continuously, with progressive dose decrements in the event of DLT; and phase 2 to determine efficacy of Vorinostat at MTD in 12-37 evaluable patients. Correlative studies (pharmacokinetics, pharmacogenetics, plasma proteomics, tumor histone acetylation, genomics and proteomics) will be carried out to identify markers that will predict treatment response and/or toxicity to Vorinostat, to achieve the future goal of tailored therapy.

Conditions
Breast Cancer
Being tested
Vorinostat
Keywords
Phase I/II Clinical Trial, Vorinostat, SAHA, Recurrent Breast Cancer, Metastatic Breast Cancer
Medical subject headings
Breast Neoplasms

What participants receive

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

  • VorinostatDrug

    Also called MK-0683

    MK-0683 capsules, 100 mg, 400mg once a day, continuously (at dose level 0 - Phase 1 part of the study)

Study groups in NCT00416130
Study groupRoleWhat they receive
VorinostatExperimentalA phase I portion that will determine the safety of 400mg Vorinostat once a day, continuously in the Asian population. A pre-determined dose reduction schema will be followed in the event of significant dose-limiting toxicities at this dose. Phase II will recruit additional patients at the determined dose with the goal of evaluating drug efficacy.
Receives: Drug: Vorinostat

What is being measured

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

  1. Clinical laboratory tests

    Laboratory tests will include the following: full blood count, albumin, alkaline phosphatase, total bilirubin, BUN, calcium, chloride, creatinine, glucose, LDH, potassium, total protein, AST, ALT, sodium and uric acid

    Measured: Screening (Visit 1) and weekly during Cycle 1

  2. Vital signs

    Vital signs will include pulse, blood pressure, temperature, and respiration rate. Any treatment-emergent clinically significant vital sign abnormalities should be reported and followed as an adverse event.

    Measured: Screening (Visit 1) and at subsequent visits

  3. Electrocardiograms

    ECG results will be reviewed by the investigator, and any treatment-emergent clinically significant ECG abnormality should be reported and followed as an adverse event.

    Measured: (Visit 1) and every 12 weekly while on treatment.

Secondary outcomes (5)
  1. Vorinostat concentration in serum samples

    Vorinostat and its two metabolites SAHA-glucuronide and n-phenyl succinamic acid in human serum samples will be isolated by high throughput liquid chromatograph (HTLC) on-line extraction system.AUC, terminal elimination rate constant,total serum clearance (CL), volume of distribution (Vz) and bioavailability after oral administration will be calculated

    Measured: Cycle 1 Day 1 (Week 1) and Cycle 1 Day 15 (Week 3)

  2. Level of histone H3 acetylation

    10ml whole blood will be collected in heparinized tubes at baseline and 3 weeks after initiation of Vorinostat treatment, and centrifuged to obtain peripheral mononuclear cells. Histones will be isolated and acetylated histone H3 evaluated by Western blot analysis and enzyme linked immunosorbent assay (ELISA).

    Measured: Baseline and 3 weeks after initiation of Vorinostat treatment

  3. Known functional single nucleotide polymorphisms

    Known functional single nucleotide polymorphisms (SNPs) of genes encoding for proteins that are relevant to the pharmacokinetic disposition and pharmacodynamics of Vorinostat will be characterized. More comprehensive genotyping using high-throughput sequencing techniques will be carried out in 'outliers' who have extreme pharmacokinetic parameters, or who experience exceptional toxicity or tumor response, to identify novel functional SNPs.

    Measured: prior to start of treatment

  4. Baseline plasma protein profiles and changes in response to chemotherapy

    Plasma proteomics studies using SELDI-MS with the Ciphergen technology will be collected serially to identify protein markers that are associated with Vorinostat response.

    Measured: baseline, on day 1 of each subsequent treatment cycle for the first 6 cycles, followed by 3 monthly until documented disease progression.

  5. Tumor histone acetylation studies, genomics and proteomics studies (optional)

    Tumor samples will be snap frozen in liquid nitrogen for subsequent RNA and protein extraction for tumor histone acetylation studies, gene expression studies and proteomic studies in an attempt to identify biomarkers that correlate with Vorinostat biological effects and clinical response.

    Measured: at baseline, and 3 weeks after initiation of Vorinostat treatment

Timeline

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

  1. First posted27 Dec 2006 (estimated)
  2. Study startJan 2007
  3. Primary completionJan 2015 (estimated)
  4. Study completionJan 2015 (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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
49 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00416130
Sponsor's protocol ID
BR05/24/06
Other IDs
DSRB Reference Code: B/06/275, HSA No: CTC0600314
Status last verified
Dec 2013
First submitted
26 Dec 2006
Last updated
10 Dec 2013
Results posted
No
Data monitoring committee
No

Publications

  • Munster PN, Troso-Sandoval T, Rosen N, Rifkind R, Marks PA, Richon VM. The histone deacetylase inhibitor suberoylanilide hydroxamic acid induces differentiation of human breast cancer cells. Cancer Res. 2001 Dec 1;61(23):8492-7.

    PubMed 11731433
  • Kelly WK, O'Connor OA, Krug LM, Chiao JH, Heaney M, Curley T, MacGregore-Cortelli B, Tong W, Secrist JP, Schwartz L, Richardson S, Chu E, Olgac S, Marks PA, Scher H, Richon VM. Phase I study of an oral histone deacetylase inhibitor, suberoylanilide hydroxamic acid, in patients with advanced cancer. J Clin Oncol. 2005 Jun 10;23(17):3923-31. doi: 10.1200/JCO.2005.14.167. Epub 2005 May 16.

    PubMed 15897550

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Vorinostat in people with Breast Cancer, run by National University Hospital, Singapore at 2 sites in Singapore.

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 7 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: status not confirmed, as of the sponsor's last update on 10 Dec 2013. 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 Singapore. 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 combined 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.

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?

Results are not available in the source record.

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?

Clinical laboratory tests (time frame: Screening (Visit 1) and weekly during Cycle 1). The study lists 3 primary outcomes in all. 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 NCT00416130, 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 10 Dec 2013.

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