AzTrials
AzTrials

Myeloproliferative DisordersPhase 2NCT01200498

Study of SB939 in Subjects With Myelofibrosis

A Phase 2 study testing SB939 in people with Myeloproliferative Disorders, run by M.D. Anderson Cancer 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
Search all trials

Trial summary

The goal of this clinical research study is to learn if SB939 can help to control myelofibrosis. The safety of this drug will also be studied. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Myeloproliferative Disorders
What is being tested?
SB939
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
23 participants
Where
1 siteUnited States
Study dates
Nov 2010to Nov 2012
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Must be equal to or greater than 18 years of age
  • Must be diagnosed with Primary Myelofibrosis (PMF) or Post-Essential Thrombocythemia (ET) Myelofibrosis (MF) Post-Polycythemia Vera (PV) MF with intermediate-1, intermediate -2 or high risk disease according to the International Working Group (IWG) prognostic scoring system, or if with low risk disease then with symptomatic splenomegaly that is equal to or greater than 5 cm below left costal margin by physical exam.
  • Must have adequate organ function as demonstrated by the following: • alanine aminotransferase (ALT) (SGOT) and/or aspartate aminotransferase (AST) (SGPT) equal to or less than 2.5 times upper limit of normal (ULN), [unless upon judgment of the treating physician, it is believed to be due to extramedullary hematopoiesis (EMH) related to MF] • Total bilirubin equal to or less than 1.5 times ULN • Serum creatinine equal to or less than 2.5 mg/dL
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0, 1, or 2
  • At least 2 weeks from prior MF-directed treatment (till the start of study drug)
  • Treatment-related toxicities from prior therapies must have resolved to Grade equal to or less than 1
  • No other active malignancies.
  • Females of childbearing potential (a sexually mature woman who: 1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months)).must have negative pregnancy test.

Who cannot join

  • Prolongation of the QTc interval to >470 msec at baseline ECG
  • Known positive status for HIV, or known active hepatitis A, B, or C infection.
  • Any serious medical condition or psychiatric illness that would prevent, (as judged by the treating physician) the subject from signing the informed consent form or any condition, including the presence of laboratory abnormalities, which places the subject at unacceptable risk if he/she were to participate in the study or confounds the ability to interpret data from the study.
  • Pregnant or lactating females.
  • Current use of drugs known to prolong QTc interval.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UT MD Anderson Cancer Center

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: A Phase 2, Prospective, Open-Label Study to Determine the Safety and Efficacy of SB939, A Histone Deacetylase Inhibitor, in Subjects With Primary, Post-Polycythemia Vera, or Post-Essential Thrombocythemia Myelofibrosis (PMF; Post-Polycythemia Vera (PV) Myelofibrosis (MF), Or Post- Essential Thrombosis (ET) MF

The goal of this clinical research study is to learn if SB939 can help to control myelofibrosis. The safety of this drug will also be studied.

Read the detailed description

The Study Drug:

SB939 is designed to change the DNA (genetic material) of cancer cells. This may keep the cells from growing and cause them to die.

This is the first study in which SB939 is given to patients with myelofibrosis.

Study Drug Administration:

If you are found to be eligible to take part in this study, you will take SB939 by mouth 3 times a week for the first 3 weeks of every 4-week cycle. In some cases, the study doctor may decide your dose can be raised sometime after Cycle 1.

SB939 can be taken at any time of day, 2 hours before or 2 hours after a meal. You should take SB939 at about the same time each day. Do not open, break, or chew the capsules.

If you have any side effects, the doctor may change the amount or how often you take SB939.

You will fill out a study drug diary to keep track of your SB939 doses. You should bring the diary and all used and unused bottles of study drug with you to every study visit.

Study Visits:

At every study visit, you will be asked about any side effects you have had and any drugs you may be taking.

On Day 1 of Cycle 1 (+/- 3 days):

  • You will have a physical exam, including measurement of your vital signs.
  • You will be asked about any blood transfusions you have had and drugs you have taken since the last visit.
  • Your performance status will be recorded.
  • Blood (about 4 teaspoons) will be drawn for routine tests.
  • You will have an ECG before taking this medication, about 10 minutes after taking medication, and 4-6 hours after taking medication.

On Day 8 of Cycle 1 (+1-3 days), blood (about 2 teaspoons) will be drawn for routine tests.

On Day 15 of Cycle 1 (+/- 3 days):

  • You will have a physical exam, including measurement of your vital signs.
  • Blood (about 4 teaspoons) will be drawn for routine tests.
  • You will have an ECG before taking this medication, about 10 minutes after taking medication, and 4-6 hours after taking medication.

On Day 22 of Cycle 1 (+1-3 days), blood (about 2 teaspoons) will be drawn for routine tests.

On Day 1 of Cycles 2 and 3 (+/- 3 days):

  • You will have a physical exam, including measurement of your vital signs.
  • You will be asked about any blood transfusions you have had since the last visit.
  • Your performance status will be recorded.
  • Blood (about 4 teaspoons) will be drawn for routine tests.
  • You will have an ECG.

On Day 1 of Cycles 4 and beyond (+/- 3 days), or every 3 cycles starting on Day 1 of Cycle 6 (+/- 3 days) if the doctor decides your schedule can change (if you have not had serious side effects):

  • You will have a physical exam, including measurement of your vital signs.
  • You will be asked about any blood transfusions you have had and drugs you have taken since the last visit.
  • Your performance status will be recorded.
  • Blood (about 4 teaspoons) will be drawn for routine tests.
  • You will have a bone marrow biopsy and aspiration to check the status of the disease, if the doctor thinks it is needed.
  • You will have an ECG at every visit to MD Anderson.

If your study visit schedule is changed to every 3 cycles (Day 1 of Cycles 6, 9, and so on), blood (about 4 teaspoons) will be drawn for routine tests every 28 days (+/- 3 days). These tests will be done at your local doctor's office. Every 28 days (+/- 3 days), the study staff will also call you to ask how you are doing and if you have had any side effects.

You may have additional bone marrow biopsies and aspirations and ECGs any time the doctor thinks it is needed. The study visits may also occur more often than described above, if the doctor thinks it is needed.

Length of Study:

You may continue taking the study drug for as long as the doctor thinks it is in your best interest. You will no longer be able to take the study drug if the disease gets worse, if intolerable side effects occur, or if you need radiation therapy, surgery, or other chemotherapy.

Your participation on the study will be over once you have completed the end-of-treatment visit and follow-up.

End-of-Treatment Visit:

After you stop taking the study drug for any reason, the following tests and procedures will be performed:

  • You will have a physical exam, including measurement of your vital signs.
  • You will be asked about any blood transfusions you have had and drugs you have taken since the last visit.
  • Your performance status will be recorded.
  • Blood (about 4 teaspoons) will be drawn for routine tests.
  • You will have a bone marrow biopsy and aspiration to check the status of the disease, if the doctor thinks it is needed.

Follow-up:

The study staff will call you 30 days and 60 days after your last dose of the study drug (+/- 3 days). You will be asked how you are doing and if you have had any side effects.

If you have any side effects within 60 days after you stop taking the study drug, you may have extra tests and procedures. For example, blood (about 2 teaspoons) may be drawn for routine tests. If you are still having side effects, the study staff will continue calling you to ask how you are doing until the side effects get better. The schedule for how often you are called will depend on the side effects.

This is an investigational study. SB939 is not FDA approved or commercially available. It is currently being used for research purposes only.

Up to 41 patients will take part in this study. All will be enrolled at the University of Texas (UT) MD Anderson Cancer Center.

Being tested
SB939
Keywords
Primary Polycythemia Vera, Post Polycythemia Vera, Post Essential Thrombocythemia Myelofibrosis, SB939, PMF, post-PV MF, post-ET MF
Medical subject headings
Myeloproliferative Disorders

What participants receive

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

  • SB939Drug

    Starting dose 60 mg by mouth every other day, three times weekly for 3 weeks.

Study groups in NCT01200498
Study groupRoleWhat they receive
SB939ExperimentalSB939 starting dose 60 mg by mouth every other day, three times weekly for 3 weeks.
Receives: Drug: SB939

What is being measured

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

  1. Participants With an Objective Response

    Objective response defined as Complete, Partial response, and Clinical Improvement based on International Working Group (IWG) Criteria: Complete remission (CR): Absence transfusion \& growth factor support AND Complete resolution disease-related symptoms/signs; Peripheral blood count remission; Normal leukocyte differential; Bone marrow histological remission. Partial remission (PR): All CR except bone marrow histological remission. Clinical improvement (CI): No CR/PR, disease progression with one: ≥2 g/dL increase hemoglobin level or transfusion independent; Either ≥50% reduction in palpable splenomegaly of spleen ≥10 cm baseline or spleen palpable at >5 cm baseline becomes not palpable; ≥100% increase in platelet count \& absolute platelet count ≥50,000 x 10^9/L; or ≥100% increase in absolute neutrophil count (ANC) \& ANC ≥0.5 x 10^9/L. Progressive disease: Progressive splenomegaly or Leukemic transformation confirmed by bone marrow blast of ≥20%; or Increase peripheral blood blast

    Measured: Baseline to 3 Cycles (84 days)

Timeline

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

  1. First posted13 Sep 2010 (estimated)
  2. Study startNov 2010
  3. Primary completionNov 2012
  4. Study completionNov 2012

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
23 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01200498
Sponsor's protocol ID
2010-0319
Status last verified
Dec 2013
First submitted
9 Sep 2010
Last updated
30 Jan 2014
Data monitoring committee
No

Publications

  • Quintas-Cardama A, Kantarjian H, Estrov Z, Borthakur G, Cortes J, Verstovsek S. Therapy with the histone deacetylase inhibitor pracinostat for patients with myelofibrosis. Leuk Res. 2012 Sep;36(9):1124-7. doi: 10.1016/j.leukres.2012.03.003. Epub 2012 Apr 2.

    PubMed 22475363

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing SB939 in people with Myeloproliferative Disorders, run by M.D. Anderson Cancer 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 5 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 30 Jan 2014. 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 30 Jan 2014). 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?

Participants With an Objective Response (time frame: Baseline to 3 Cycles (84 days)). 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 NCT01200498, which also lists 1 linked publication.

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 30 Jan 2014.

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