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Safety and Efficacy Study Using Rexin-G for Sarcoma

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ClinicalTrials.gov Identifier: NCT00505713
Recruitment Status : Completed
First Posted : July 23, 2007
Last Update Posted : June 10, 2011
Sponsor:
Information provided by:
Epeius Biotechnologies

Brief Summary:
Rexin-G is a tumor-targeted (pathotropic or disease-seeking) nanoparticle that when injected intravenously, seeks out and accumulates in cancerous lesions, thus enhancing local drug concentration within tumors. The goal of the adaptive trial design is to confirm the over-all safety of Rexin-G and to determine the optimal dosing regimen for Rexin-G that would document the significant clinical benefits required to support a Phase II registration protocol.

Condition or disease Intervention/treatment Phase
Sarcoma Genetic: Rexin-G Phase 1 Phase 2

Detailed Description:
The Phase I/II clinical trial incorporates a Phase II component that will evaluate the efficacy of Rexin-G using an adaptive trial design. Each treatment cycle will be six weeks: four weeks of treatment and two weeks of rest. Unlike a standard Phase I protocol, eligible patients may have repeat cycles after the safety data and objective tumor response/s are recorded. Continued Rexin-G treatment will enable the targeted nanomedicine to catch up with tumor growth, halt disease progression, and reduce tumor burden. The treatment strategy is to achieve tumor control as quickly as safely possible. The goal of the adaptive trial design is to confirm the over-all safety of Rexin-G and to determine the optimal dosing regimen for Rexin-G that would document the significant clinical benefits required to support a Phase II registration protocol.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 36 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Evaluation of Safety and Efficacy of Rexin-G as Intervention for Recurrent or Metastatic Sarcoma
Study Start Date : July 2007
Actual Primary Completion Date : July 2010
Actual Study Completion Date : June 2011

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: 1
Dose Level 1 of escalating doses of Rexin-G i.v.
Genetic: Rexin-G
Dosing Schedule: 1 x 10e11 cfu two times a week for 4 weeks followed by a 2-week rest period. Treatment cycle may be repeated if patient has Grade 1 or less toxicity

Experimental: 3
Dose Level 3 of escalating doses of Rexin-G i.v.
Genetic: Rexin-G
Dosing Schedule: 2 x 10e11 cfu i.v. three times a week for 4 weeks followed by a 2-week rest period. Treatment cycle may be repeated if patient has Grade 1 or less toxicity.

Experimental: 4
Dose Level 4 of escalating doses of Rexin-G i.v.
Genetic: Rexin-G
Dosing Schedule: 3 x 10e11 cfu i.w. three times a week for 4 weeks followed by a 2-week rest period. Treatment cycle may be repeated if patient has Grade 1 or less toxicity.

Experimental: 5
Dose Level 5 of escalating doses of Rexin-G i.v.
Genetic: Rexin-G
Dosing Schedule: 4 x 10e 11 cfu i.v. three times a week for 4 weeks followed by a 2-week rest period. Treatment cycle may be repeated if patient has Grade 1 or less toxicity.

Experimental: 2
Dose Level 2 of escalating doses of Rexin-G i.v.
Genetic: Rexin-G
Dosing Schedule: 1 x 10e11 cfu i.v. three times a week for 4 weeks followed by a 2-week rest period. Treatment cycle may be repeated if patient has Grade 1 or less toxicity.




Primary Outcome Measures :
  1. Clinical toxicity (DLT and MTD) as defined by patient performance status, toxicity assessment score, hematologic, and metabolic profiles [ Time Frame: 12 months ]

Secondary Outcome Measures :
  1. To identify an objective tumor response to Rexin-G [ Time Frame: 12 months ]


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Ages Eligible for Study:   10 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  1. Histologically or cytologically confirmed recurrent or metastatic sarcoma that is measurable.
  2. Adequate hepatic function: Total bilirubin < 2.0 mg/dL (upper limit included); AST/ALT < 2x institutional norm; alkaline phosphatase < 2.5x upper limit of institutional norm unless the patient has extensive bone metastases. Patients with elevated alkaline phosphatase due to extensive liver disease will be excluded from study; albumin > 3.0 mg/dL. There must be no substantial ascites. PT and PTT must be within normal limits.
  3. Performance status must be < 1 (ECOG 0-1) with a life expectancy of at least 3 months.
  4. Hemoglobin > 9 gms%
  5. Absolute granulocyte count > 1000/uL, and platelet count > 100,000/uL.
  6. Serum creatinine of less than 1.5 mg%.
  7. There must be no plans for the patient to receive further cancer therapy from the date of enrollment until the completion of the 6-week follow-up visit.
  8. Accessibility of peripheral or central IV line
  9. Age > 10 years
  10. Patients will be off chemotherapy for a minimum of 4 weeks prior to initiation of therapy and should have recovered to Grade 1 or less toxicity.
  11. The ability to understand and the willingness to sign a written informed consent document.

Exclusion Criteria:

  1. Prior malignancy, except for non-melanoma skin cancer, stage 1 breast cancer, CIS of cervix from which the patient has been disease-free for 5 years.
  2. Woman who are pregnant or nursing
  3. Fertile patients unless they agree to use barrier contraception (condoms and spermicide jelly) during the vector infusion period and for six weeks after infusion. Male patients must agree to use barrier contraception.
  4. Patients who are transfusion dependent (more than one transfusion per month)
  5. Patients with medical, psychiatric, or social conditions that would compromise successful adherence to this protocol.
  6. Patient who do not meet the inclusion criteria.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00505713


Locations
United States, California
Epeius Clinical Research Unit
San Marino, California, United States, 91108
Sarcoma Oncology Center
Santa Monica, California, United States, 90403
Sponsors and Collaborators
Epeius Biotechnologies
Investigators
Principal Investigator: Sant P Chawla, M.D. Epeius Clinical Research Unit/Sarcoma Oncology Center

Responsible Party: Erlinda M. Gordon, M.D., Epeius Biotechnologies Corporation
ClinicalTrials.gov Identifier: NCT00505713     History of Changes
Other Study ID Numbers: C07-103
First Posted: July 23, 2007    Key Record Dates
Last Update Posted: June 10, 2011
Last Verified: June 2011

Keywords provided by Epeius Biotechnologies:
Sarcoma
Rexin-G
Gene Therapy

Additional relevant MeSH terms:
Sarcoma
Neoplasms, Connective and Soft Tissue
Neoplasms by Histologic Type
Neoplasms