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Last Modified: 12/11/2006     First Published: 12/1/1999  
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Phase I Study of Bryostatin 1 and Gemcitabine in Patients With Advanced Refractory Cancer

Alternate Title
Basic Trial Information
Objectives
Entry Criteria
Expected Enrollment
Outline
Published Results
Trial Contact Information
Registry Information

Alternate Title

Bryostatin 1 Plus Gemcitabine in Treating Patients With Advanced Cancer

Basic Trial Information

PhaseTypeStatusAgeSponsorProtocol IDs
Phase ITreatmentCompleted18 and overNCIWSU-Z-2021
NCI-T99-0014, NCT00004144, T99-0014

Objectives

  1. Determine the maximum tolerated dose of gemcitabine when given concurrently with bryostatin 1 to patients with advanced refractory cancer.
  2. Access the pattern of toxicity of this drug regimen in this patient population.
  3. Determine the objective response rate, duration of response, and overall survival in patients treated with this drug regimen.
  4. Determine the influence of bryostatin 1 on the pharmacokinetics of gemcitabine.

Entry Criteria

Disease Characteristics:

  • Histologically or cytologically proven advanced cancer (except hematological cancers) for which there is no standard therapy or have failed standard therapies


  • Measurable or evaluable disease


  • Clinically controlled brain metastases allowed


Prior/Concurrent Therapy:

Biologic therapy:

  • No concurrent immunotherapy

Chemotherapy:

  • At least 3 weeks since systemic cytotoxic chemotherapy (including gemcitabine) and recovered
  • No other concurrent chemotherapy

Endocrine therapy:

  • Prior hormonal therapy allowed
  • No concurrent hormonal therapy (excluding contraceptives, appetite stimulants, or replacement steroids)

Radiotherapy:

  • At least 3 weeks since radiotherapy to large areas of active bone marrow and recovered
  • No concurrent radiotherapy

Surgery:

  • Recovered from prior major surgery

Other:

  • No concurrent antiviral nucleosides
  • At least 1 month since prior investigational agents
  • No other concurrent experimental medications

Patient Characteristics:

Age:

  • 18 and over

Performance status:

  • SWOG 0-2

Life expectancy:

  • At least 3 months

Hematopoietic:

  • Hemoglobin at least 8.0 g/dL
  • Absolute neutrophil count at least 1,500/mm3
  • Platelet count at least 100,000/mm3

Hepatic:

  • Bilirubin no greater than 1.5 times upper limit of normal (ULN) (elevated bilirubin due to Gilbert's syndrome allowed if direct bilirubin normal)
  • AST less than 2.5 times ULN

Renal:

  • Creatinine normal

Cardiovascular:

  • No active cardiac disease

Other:

  • Not pregnant or nursing
  • Fertile patients must use effective contraception
  • No concurrent bacterial infection requiring antibiotics
  • No serious concurrent medical condition

Expected Enrollment

Approximately 2-3 patients per month will be accrued for this study.

Outline

This is a dose escalation study.

Patients receive gemcitabine IV over 30 minutes, immediately followed by bryostatin 1 IV over 24 hours, weekly for 3 weeks (days 1, 8, and 15). Treatment repeats every 28 days in the absence of unacceptable toxicity or disease progression.

Cohorts of 3-6 patients receive escalating doses of gemcitabine and bryostatin 1 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose limiting toxic effects.

Published Results

El-Rayes BF, Gadgeel S, Shields AF, et al.: Phase I study of bryostatin 1 and gemcitabine. Clin Cancer Res 12 (23): 7059-62, 2006.[PUBMED Abstract]

Trial Contact Information

Trial Lead Organizations

Barbara Ann Karmanos Cancer Institute

Philip Philip, MD, PhD, FRCP, Protocol chair
Ph: 313-576-8728; 800-527-6266
Email: philipp@karmanos.org

Registry Information
Official Title Phase I Study of Bryostatin 1 and Gemcitabine (Gemzar)
Trial Start Date 2000-05-16
Registered in ClinicalTrials.gov NCT00004144
Date Submitted to PDQ 1999-10-07
Information Last Verified 2004-05-18
NCI Grant/Contract Number CA22453

Note: The purpose of most clinical trials listed in this database is to test new cancer treatments, or new methods of diagnosing, screening, or preventing cancer. Because all potentially harmful side effects are not known before a trial is conducted, dose and schedule modifications may be required for participants if they develop side effects from the treatment or test. The therapy or test described in this clinical trial is intended for use by clinical oncologists in carefully structured settings, and may not prove to be more effective than standard treatment. A responsible investigator associated with this clinical trial should be consulted before using this protocol.

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