Calcitriol Plus Carboplatin in Treating Patients With Advanced Solid Tumors

December 18, 2013 updated by: Laura A. Pollice, University of Pittsburgh

A Phase I Trial of Subcutaneous And/Or Oral Calcitriol [(1,25-COH)2D3] and Carboplatin in Advanced Solid Tumors

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Calcitriol may help solid tumor cells develop into normal cells. Combining calcitriol with chemotherapy may kill more tumor cells.

PURPOSE: Phase I trial to study the effectiveness of calcitriol combined with carboplatin in treating patients who have advanced solid tumors.

Study Overview

Detailed Description

OBJECTIVES:

  • Determine the maximum tolerated doses of calcitriol and carboplatin, when given in combination, in patients with advanced solid tumors.
  • Determine the toxic effects of this regimen in these patients.
  • Determine the effect of calcitriol on the pharmacokinetics of carboplatin in these patients.
  • Correlate the pharmacokinetics of carboplatin with the myelosuppression following this regimen in these patients.
  • Determine the safety and efficacy of this regimen in patients with malignant glioma.

OUTLINE: This is a dose-escalation study. Patients are stratified according to disease (brain tumor vs other solid tumor) and accrued in parallel. Patients are assigned to one of two treatment groups.

  • Group 1: Patients receive carboplatin IV over 20-30 minutes on day 1 and calcitriol subcutaneously (SC) or orally daily on days 2-4 for the first course only. For subsequent courses, patients receive calcitriol SC or orally daily on days 1-3 and carboplatin IV over 20-30 minutes on day 3.
  • Group 2: Patients receive calcitriol SC or orally daily on days 1-3 and carboplatin IV over 20-30 minutes on day 3 for the first, third, and subsequent courses. For the second course only, patients receive carboplatin IV over 20-30 minutes on day 1 and calcitriol SC or orally daily on days 2-4.

In both groups, treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity.

Sequential dose escalation of calcitriol is followed by sequential dose escalation of carboplatin. Cohorts of 3-6 patients receive escalating doses of calcitriol and then carboplatin until the maximum tolerated dose (MTD) of the combination is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose-limiting toxicity.

PROJECTED ACCRUAL: Approximately 18-50 patients will be accrued for this study.

Study Type

Interventional

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15213-3489
        • University of Pittsburgh Cancer Institute

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

DISEASE CHARACTERISTICS:

  • Histologically confirmed advanced solid tumor that is not curable by standard therapy, including glioma and other brain tumors
  • Brain metastases allowed following definitive radiotherapy

PATIENT CHARACTERISTICS:

Age:

  • 18 and over

Performance status:

  • ECOG 0-2

Life expectancy:

  • At least 8 weeks

Hematopoietic:

  • Absolute neutrophil count at least 1,500/mm^3
  • Platelet count at least 100,000/mm^3

Hepatic:

  • Bilirubin no greater than 1.5 mg/dL
  • SGOT no greater than 4 times normal

Renal:

  • Creatinine no greater than 1.5 mg/dL OR
  • Creatinine clearance at least 60 mL/min
  • Creatinine no greater than 2.0 mg/dL
  • Calcium no greater than 10.5 mg/dL

Cardiovascular:

  • No unstable angina
  • No symptomatic coronary artery disease

Other:

  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use 2 forms of barrier contraception AND 1 form of hormonal contraception for at least 1 week before, during, and for at least 2 weeks after study
  • No active infection
  • No other concurrent serious condition

PRIOR CONCURRENT THERAPY:

Biologic therapy:

  • At least 4 weeks since prior biologic therapy (regional or systemic)

Chemotherapy:

  • At least 4 weeks since prior chemotherapy

Endocrine therapy:

  • No concurrent glucocorticoids as antiemetics
  • Concurrent exogenous glucocorticoids allowed for treatment of gliomas or other brain tumors

Radiotherapy:

  • See Disease Characteristics
  • At least 4 weeks since prior radiotherapy

Surgery:

  • Not specified

Other:

  • Dietary calcium intake of no more than 200-250 mg/day beginning 48 hours before each course and continuing for 7 days
  • No concurrent dairy products, green leafy vegetables, molasses, baking powder, fortified cereals, and dry peas and beans

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 1996

Primary Completion (Actual)

September 1, 2004

Study Completion (Actual)

September 1, 2004

Study Registration Dates

First Submitted

January 6, 2001

First Submitted That Met QC Criteria

September 3, 2003

First Posted (Estimate)

September 4, 2003

Study Record Updates

Last Update Posted (Estimate)

December 19, 2013

Last Update Submitted That Met QC Criteria

December 18, 2013

Last Verified

December 1, 2013

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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