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Advanced Solid TumorsPhase 1NCT00726583

Phase I Trial of Oral PX-866

A Phase 1 study testing PX-866 in people with Advanced Solid Tumors, run by Cascadian Therapeutics Inc. at 2 sites 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

This study is being conducted to determine the safety and maximally tolerated dose of PX-866 when given orally on two different schedules: daily on days 1-5 and 8-12 of a 28 day cycle and daily on days 1-28 of a 28 day cycle. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Advanced Solid Tumors
What is being tested?
PX-866
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
2 sitesUnited States
Study dates
Jun 2008to Sep 2011
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

  • Histologically or cytologically confirmed diagnosis of advanced solid tumor and has failed or is intolerant of standard therapy, or for whom standard therapy does not exist.
  • 18 years of age or older.
  • ECOG performance status 0 to 1.
  • Predicted life expectancy of at least 12 weeks.
  • Discontinued prior chemotherapy or other investigational agents for at least three weeks prior to receiving the first dose of study drug (six weeks for mitomycin C, nitrosureas,vaccines,or antibody therapy)and recovered from the toxic effects of the prior treatment (recovered to baseline or ≤grade 1 per Common Toxicity Criteria for Adverse Events (CTCAE)).
  • Discontinued any radiation therapy for at least four weeks and have recovered from all radiation-related toxicities (recovered to baseline or ≤CTCAE grade 1) prior to receiving the first dose of study drug. Palliative radiation of 10 fractions or less is permitted and a four week interval is not necessary (also allowed during therapy).
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  • Adequate hematologic function as defined by the following: WBC count >3,000 cells/μL; platelets >100,000/μL; hemoglobin >9 g/dL (may be transfused to this level); ANC >1500 cells/μL.
  • Adequate hepatic function as defined by the following: bilirubin <1.5 mg/dL; aspartate aminotransaminase (AST/SGOT) \& alanine aminotransferase (ALT/SGPT) <2.5 x ULN or <5 x ULN if due to metastatic disease.
  • Adequate renal function as defined by serum creatinine level <1.5 mg/dL.

Who cannot join

  • Any active infection at study entry.
  • Known diabetes or fasting blood glucose>160 mg/dL.
  • Known human immunodeficiency virus (HIV).
  • Any serious concomitant systemic disorders that in the opinion of the investigator would place the patient at excessive or unacceptable risk of toxicity.
  • Surgery within the four weeks prior to the first dose
  • Significant central nervous system (CNS) or psychiatric disorder(s) that preclude the ability of the patient to provide informed consent.
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  • Known or suspected brain metastases that have not received adequate therapy or for which the patient requires treatment with steroids or anticonvulsants. In the case of previously treated brain metastases, a minimum four week interval between completion of radiation therapy and registration on study with radiologic evidence of stable or responding brain metastases is required. In the setting of previous CNS metastasectomy, adequate (minimum four week) recovery from surgery and/or radiation therapy should be documented.
  • Leptomeningeal brain metastases should be excluded regardless of whether the metastases have been treated or not.
  • History of seizures, non-healing wounds, or arterial thrombosis.
  • Unstable atrial or ventricular arrhythmias requiring control by medication; any cardiac ischemic event experienced within the preceding six months; prior history of congestive heart failure requiring therapy.
  • Breastfeeding or pregnant (confirmed by serum β-HCG within 10 days prior to the start of study treatment if applicable).
  • Total gastrectomy, partial bowel obstruction or any gastrointestinal condition that may interfere with absorption of the study medication.
  • Any condition that could jeopardize the safety of the patient and compliance with the protocol.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • University of Colorado Health Sciences Center

    Aurora, Colorado, 80045

  • M.D. Anderson Cancer Center

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: A Phase I Trial of Oral PX-866 (a PI-3K Inhibitor) in Patients With Advanced Solid Tumors

This study is being conducted to determine the safety and maximally tolerated dose of PX-866 when given orally on two different schedules: daily on days 1-5 and 8-12 of a 28 day cycle and daily on days 1-28 of a 28 day cycle.

Read the detailed description

PX-866 is a targeted inhibitor of PI-3K. This study is being conducted to determine the maximally tolerated dose of PX-866 when given orally on two different schedules: daily on days 1-5 and 8-12 of a 28 day cycle and daily on days 1-28 of a 28 day cycle.

Being tested
PX-866
Keywords
Cancer, Solid Tumors, Carcinoma, PI-3K, PI3 kinase, PI3K
Medical subject headings
Neoplasms, Carcinoma, Hereditary Sensory and Autonomic Neuropathies

What participants receive

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

  • PX-866Drug

    Oral solution, dose escalation, once per day on days 1 to 5 and 8 to 12 or days 1-28 of a 28 day cycle, until progression or development of unacceptable toxicity

Study groups in NCT00726583
Study groupRoleWhat they receive
Investigational DrugExperimentalDose Escalation
Receives: Drug: PX-866

What is being measured

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

  1. Determine the MTD of PX-866

    Measured: 28 days

  2. Evaluate the safety profile of PX-866

    Measured: 28 days

  3. Evaluate pharmacodynamic measures of the effects of PX-866 on the phosphatidylinositol-3 kinase (PI-3K) pathway and related tumor markers.

    Measured: 28 days

  4. Determine the PK profile of PX-866.

    Measured: 28 days

Secondary outcomes (1)
  1. Evaluate the anti-tumor activity of PX-866 in patients with advanced malignancies.

    Measured: 56 days

Timeline

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

  1. First posted1 Aug 2008 (estimated)
  2. Study startJun 2008
  3. Primary completionSep 2011
  4. Study completionSep 2011

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
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00726583
Sponsor's protocol ID
PX-866-001
Status last verified
Oct 2011
First submitted
30 Jul 2008
Last updated
17 May 2018
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing PX-866 in people with Advanced Solid Tumors, run by Cascadian Therapeutics Inc. at 2 sites 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 9 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: finished, as of the sponsor's last update on 17 May 2018. 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 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?

Determine the MTD of PX-866 (time frame: 28 days). The study lists 4 primary outcomes in all. 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 17 May 2018.

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