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Gastrointestinal Stromal TumorsPhase 3NCT00688766

Study Evaluating IPI-504 in Patients With Gastrointestinal Stromal Tumors (GIST) Following Failure of at Least Imatinib and Sunitinib

A Phase 3 study testing retaspimycin hydrochloride (IPI-504) in people with Gastrointestinal Stromal Tumors, run by Infinity Pharmaceuticals, Inc..

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

IPI-504-06 is a Phase 3, randomized, double-blind, placebo-controlled, multi-center study to evaluate the efficacy and safety of IPI-504 as compared to placebo in patients with metastatic and/or unresectable GIST following failure of at least imatinib and sunitinib. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Gastrointestinal Stromal Tumors
What is being tested?
retaspimycin hydrochloride (IPI-504)
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
47 participants
Where
No sites listed yet
Study dates
Aug 2008to May 2009
Phase
Phase 3
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

  • At least 18 years of age at the time of study randomization.
  • Histologically confirmed metastatic and/or unresectable GIST.
  • Measurable disease on CT or MRI as defined by RECIST.
  • Documented radiographic progression or intolerance to imatinib and sunitinib.
  • Clinical failure of the most recent prior therapy for GIST. Note: There is no limit to the number of prior therapies a patient may have received.
  • Eastern Cooperative Oncology Group (ECOG) performance status: 0 or 1.
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  • Hemoglobin ≥ 8.0 g/dL (80 g/L).
  • Absolute Neutrophil Count ≥ 1500/µL (1.5 x 109/L).
  • Platelets ≥ 100,000 /µL (100 x 109/L).
  • ALT and AST ≤ 2.5 x upper limit of normal (ULN), or ≤ 5.0 x ULN if considered secondary to liver metastases.
  • Alkaline phosphatase ≤ 2.5 x ULN, or ≤ 5.0 x ULN if considered secondary to liver metastases.
  • Serum bilirubin ≤ 1.5 x ULN.
  • PT and PTT ≤ 1.5 x ULN unless the patient is receiving warfarin. If the patient is receiving warfarin, the INR must be within therapeutic range.
  • Serum creatinine ≤ 1.5 x ULN.

Who cannot join

  • Previous administration of other known heat shock protein 90 (Hsp90) inhibitors.
  • Surgery, radiotherapy, or lesion ablative procedure to the only area of measurable disease.
  • Initiation or discontinuation of concurrent medication that is a potent CYP3A inhibitor less than 2 weeks prior to administration of IPI-504 or placebo.
  • History of any of the following within the last 6 months: cardiac disease such as acute coronary syndrome or unstable angina, symptomatic congestive heart failure, uncontrolled hypertension, cirrhotic liver disease, cerebrovascular accident, or any other significant co-morbid condition or disease which, in the judgment of the investigator, would place the patient at undue risk or interfere with the study.
  • Grade 3 or 4 hemorrhagic event within the last 6 months.
  • Known human immunodeficiency virus positivity.
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  • Sinus bradycardia (resting heart rate < 50 bpm) secondary to intrinsic conduction system disease.
  • QTcF ≥ 470 milliseconds, or previous history of clinically significant QTc prolongation while taking other medications.
  • History of prior malignancies within the past 3 years other than non-melanomatous skin cancers that have been controlled, prostate cancer that has been treated and has not recurred, non-muscle-invasive bladder cancer, and carcinoma in situ of the cervix.
  • Active or recent history (within 3 months) of keratitis or keratoconjunctivitis confirmed by ophthalmology or optometry exam.
  • Presence of Left Bundle Branch Block, Right Bundle Branch Block plus left anterior hemiblock, bifascicular block, or 3rd degree heart block. This does not include patients with a history of these events with adequate control by pacemaker.
  • Known CNS metastases.
  • Women who are pregnant or lactating.

About this study

Official title: A Phase 3 Randomized, Double-Blind, Placebo-Controlled, Multi-Center Study Evaluating the Efficacy and Safety of IPI-504 in Patients With Metastatic and/or Unresectable GIST Following Failure of at Least Imatinib and Sunitinib

IPI-504-06 is a Phase 3, randomized, double-blind, placebo-controlled, multi-center study to evaluate the efficacy and safety of IPI-504 as compared to placebo in patients with metastatic and/or unresectable GIST following failure of at least imatinib and sunitinib.

Approximately 195 patients will be randomized using a 2:1 ratio to receive either IPI-504 (N=130) or placebo (N=65). Upon unblinding, patients receiving either IPI-504 or placebo may receive IPI-504 in the open-label portion of the study if defined inclusion criteria are met.

Early and frequent imaging timepoints (Weeks 2, 5, 8, 14 and every 6 weeks thereafter) are incorporated into this study to capture progression events and limit patient exposure to ineffective agents.

Being tested
retaspimycin hydrochloride (IPI-504), placebo, Best supportive care
Keywords
GIST, Metastatic and/or Unresectable Gastrointestinal Stromal
Medical subject headings
Gastrointestinal Stromal Tumors

What participants receive

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

  • retaspimycin hydrochloride (IPI-504)Drug

    IPI-504 is a novel small molecule inhibitor of heat shock protein 90 (Hsp90). Patients will receive 400 mg/m2 of IPI-504 as a 30-minute IV infusion twice weekly for 2 weeks followed by 1 week off.

  • placeboDrug

    Patients will receive a 30-minute IV infusion twice weekly for 2 weeks followed by 1 week off.

  • Best supportive careOther

    Best supportive care will be according to institutional standard, but will not include administration of systemic cancer-specific therapies including chemotherapies, biologic therapies, investigational therapies, TKIs (e.g., imatinib, sunitinib, nilotinib, dasatinib), or local therapies such as surgery, radiotherapy, or lesion ablative therapies.

Study groups in NCT00688766
Study groupRoleWhat they receive
IPI-504Experimentalretaspimycin hydrochloride (IPI-504) plus best supportive care
Receives: Drug: retaspimycin hydrochloride (IPI-504); Other: Best supportive care
PlaceboPlacebo comparatorPlacebo plus best supportive care
Receives: Drug: placebo; Other: Best supportive care

What is being measured

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

  1. Compare the progression free survival (PFS) in both study arms

    Measured: Multiple timepoints

Secondary outcomes (4)
  1. Compare the disease control rate (DCR) in both arms

    Measured: Multiple timepoints

  2. Compare the time to progression (TTP) in both arms

    Measured: Multiple timepoints

  3. Compare the overall survival (OS) in both arms

    Measured: Continuous

  4. Evaluate the safety and tolerability of IPI-504 in this patient population

    Measured: Signing of the informed consent to 30 days after discontinuation of drug

Timeline

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

  1. First posted3 Jun 2008 (estimated)
  2. Study startAug 2008
  3. Primary completionMay 2009
  4. Study completionMay 2009

Why it stopped: Based on Independent Data Monitoring Committee (IDMC) recommendation.

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
47 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00688766
Sponsor's protocol ID
IPI-504-06
Status last verified
Dec 2012
First submitted
29 May 2008
Last updated
11 Dec 2012
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing retaspimycin hydrochloride (IPI-504) in people with Gastrointestinal Stromal Tumors, run by Infinity Pharmaceuticals, Inc..

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 14 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: stopped early, as of the sponsor's last update on 11 Dec 2012. Status can change between updates, so confirm with the study contact before making plans.

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?

The study was stopped early (reason given: Based on Independent Data Monitoring Committee (IDMC) recommendation.). 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?

Compare the progression free survival (PFS) in both study arms (time frame: Multiple timepoints). 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 11 Dec 2012.

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