PTC299 in Treating Patients With HIV-Related Kaposi Sarcoma

This study has been terminated.
(Drug supply unavailable.)
Sponsor:
Collaborators:
PTC Therapeutics
The EMMES Corporation
Information provided by (Responsible Party):
AIDS Malignancy Clinical Trials Consortium
ClinicalTrials.gov Identifier:
NCT00686842
First received: May 29, 2008
Last updated: August 27, 2014
Last verified: August 2014
  Purpose

RATIONALE: PTC299 may stop the growth of Kaposi sarcoma by blocking blood flow to the tumor.

PURPOSE: This phase I/II trial is studying the side effects and best dose of PTC299 and to see how well it works in treating patients with HIV-related Kaposi sarcoma.


Condition Intervention Phase
Kaposi's Sarcoma
Drug: VEGF inhibitor PTC299
Genetic: gene expression analysis
Genetic: polymerase chain reaction
Genetic: protein expression analysis
Other: immunohistochemistry staining method
Other: laboratory biomarker analysis
Other: pharmacological study
Procedure: biopsy
Phase 1
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I/II Trial of PTC299 in Patients With HIV-Related Kaposi's Sarcoma

Resource links provided by NLM:


Further study details as provided by AIDS Malignancy Clinical Trials Consortium:

Primary Outcome Measures:
  • Safety and Toxicity of Anti-VEGF Small Molecule PTC299 [ Time Frame: All study visits ] [ Designated as safety issue: Yes ]
    Patients who experienced an adverse event of grade 3 or greater

  • Maximum Tolerated Dose [ Time Frame: After each group of 3 subjects completes cycle 1 of treatment ] [ Designated as safety issue: Yes ]
  • Response to Treatment [ Time Frame: After each 28-day cycle of treatment and at discontinuation of therapy ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Pharmacokinetics [ Time Frame: Days 1, 15, 28, 57 ] [ Designated as safety issue: No ]
  • Effects of Study Drug on Serum and Plasma VEGF, VEGFR, and Cytokine Profiles [ Time Frame: On the first day of every 28-day cycle of treatment, Day 15, and treatment discontinuation ] [ Designated as safety issue: No ]
  • Effects of Study Drug on HIV and KSHV Viral Loads [ Time Frame: Screening, end of cycle 1, end of every third cycle thereafter, and treatment discontinuation ] [ Designated as safety issue: No ]
  • Effects of Study Drug on T-lymphocyte Subsets (i.e., CD4 and CD8) [ Time Frame: Screening, day 29, every 3 cycles thereafter, and at treatment discontinuation ] [ Designated as safety issue: No ]
  • Effects of Study Drug on VEGF, VEGFR-2 and -3, Phospho-Akt, p53, and HIF-1α Expression and Tumor Cell Proliferation, as Measured by Ki-67 Staining, in Tumor Biopsy Samples [ Time Frame: Screening and day 28 ] [ Designated as safety issue: No ]
  • Effects of Study Drug on Viral Gene Expression and Cellular Gene Transcription, as Measured by Real-time Quantitative PCR-based Profiling, in Tumor Biopsy Samples [ Time Frame: Screening and day 28 ] [ Designated as safety issue: No ]

Enrollment: 17
Study Start Date: September 2008
Study Completion Date: December 2010
Primary Completion Date: November 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: VEGF Inhibitor PTC299
Single arm study - all subjects received PTC299
Drug: VEGF inhibitor PTC299
20 mg capsules to be taken by mouth BID. Three dose levels will be evaluated: 40 mg, 80mg, and 100mg BID. Subjects will receive PTC299 in consecutive 28-day cycles for a maximum of 12 cycles.
Genetic: gene expression analysis
To describe the effects of PTC299 on viral gene expression and cellular gene transcription in KS tumor biopsies using real-time QPCR-based profiling.
Genetic: polymerase chain reaction
To describe the effects of PTC299 on viral gene expression and cellular gene transcription in KS tumor biopsies using real-time QPCR-based profiling.
Genetic: protein expression analysis
To describe the effects of PTC299 on viral gene expression and cellular gene transcription in KS tumor biopsies using real-time QPCR-based profiling.
Other: immunohistochemistry staining method
To describe the effects of PTC299 on KS tumor biopsies with respect to expression of VEGF, the VEGFR-2 and -3, phospho-Akt, p53, HIF-1α and proliferation, measured by Ki-67 staining.
Other: laboratory biomarker analysis
To describe the effects of PTC299 on KS tumor biopsies with respect to expression of VEGF, the VEGFR-2 and -3, phospho-Akt, p53, HIF-1α and proliferation, measured by Ki-67 staining.
Other: pharmacological study
To describe the pharmacokinetics of PTC299 in patients with HIV-associated KS. To describe the effects of PTC299 on circulating VEGF, VEGFR and cytokine levels in patients with HIV-associated KS.
Procedure: biopsy
To describe the effects of PTC299 on KS tumor biopsies with respect to expression of VEGF, the VEGFR-2 and -3, phospho-Akt, p53, HIF-1α and proliferation, measured by Ki-67 staining.

Detailed Description:

OBJECTIVES:

Primary

  • To define the safety and toxicity of anti-VEGF small molecule PTC299 in patients with HIV-related Kaposi sarcoma.
  • To establish the maximum tolerated dose of this drug in these patients.
  • To estimate the response rate in patients treated with this drug.

Secondary

  • To describe the pharmacokinetics of this drug in these patients.
  • To describe the effects of this drug on serum and plasma VEGF, VEGFR, and cytokine profiles in these patients.
  • To describe the effects of this drug on HIV and KSHV viral loads in these patients.
  • To describe the effects of this drug on T-lymphocyte subsets (i.e., CD4 and CD8) in these patients.
  • To describe the effects of this drug on VEGF, VEGFR-2 and -3, phospho-Akt, p53, and HIF-1α expression and tumor cell proliferation, as measured by Ki-67 staining, in tumor biopsy samples obtained from these patients.
  • To describe the effects of this drug on viral gene expression and cellular gene transcription, as measured by real-time quantitative PCR-based profiling, in tumor biopsy samples obtained from these patients.

OUTLINE: This is a multicenter, phase I dose-escalation study of anti-VEGF small molecule PTC299 followed by a phase II study.

Patients receive oral anti-VEGF small molecule PTC299 twice daily on days 1-28. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression or unacceptable toxicity. Patients who do not demonstrate an objective response of their Kaposi sarcoma (KS) lesions after 6 courses of treatment are removed from the study.

Patients undergo blood sample collection and punch biopsies periodically during study for correlative laboratory studies. Biopsy samples are assessed for VEGF, VEGFR-2, VEGFR-3, phospho-Akt, KSHV LANA, orf59, p53, and HIF-1α expression by IHC; tumor cell proliferation by Ki-67 staining; and viral gene expression at the messenger RNA level and KSHV transcription by real-time quantitative PCR-based profiling. Blood samples are assessed for pharmacokinetics and levels of secreted cytokines or other potential serum markers characteristic for KS.

After completion of study treatment, patients are followed at 30 days.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

DISEASE CHARACTERISTICS:

  • Biopsy-proven Kaposi sarcoma (KS) involving the skin (with or without lymph node), oral cavity, gastrointestinal (GI) tract, and/or lung

    • Patients with GI and/or pulmonary involvement must be asymptomatic or minimally symptomatic and not require systemic cytotoxic chemotherapy
  • Has at least five bidimensionally measurable cutaneous lesions that have not been previously irradiated AND can be used as indicator lesions

    • Must have a sufficient number of non-indicator cutaneous lesions measuring ≥ 4 x 4 mm available to obtain a total of four 3-mm punch biopsies (two at baseline and two during the course of study treatment)
  • Serologic documentation of HIV infection, as evidenced by positive ELISA, western blot, or other federally approved licensed HIV test OR a detectable blood level of HIV RNA
  • Patients receiving antiretroviral therapy for HIV infection are eligible provided they have been on a stable regimen for ≥ 12 weeks prior to study entry AND there is no evidence of improvement in KS during those 12 weeks or there is evidence of progression of KS within the immediate 4 weeks prior to study entry
  • No symptomatic visceral KS requiring cytotoxic therapy

PATIENT CHARACTERISTICS:

  • Karnofsky performance status 60-100%
  • Life expectancy ≥ 3 months
  • Absolute neutrophil count ≥ 1,000/mm³
  • Platelet count ≥ 75,000/mm³
  • Hemoglobin ≥ 8 g/dL
  • Creatinine ≤ 2.0 mg/dL
  • Total bilirubin normal (grade 0)

    • No specific limit of total serum bilirubin for patient receiveing indinavir or atazanavir therapy AND direct serum bilirubin ≤ 30% of total bilirubin
  • AST and ALT ≤ 2.5 times upper limit of normal (grade 1)
  • INR and aPTT normal
  • Proteinuria < 2+
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective barrier contraception during and for up to 3 months after completion of study treatment
  • Capable of complying with the study, in the opinion of the investigator
  • No acute, active opportunistic infection (other than oral thrush or genital herpes) within the past 14 days
  • No other concurrent neoplasia requiring cytotoxic therapy
  • No history of any of the following:

    • Myocardial infarction
    • Severe/unstable angina
    • Coronary/peripheral artery bypass graft
    • Symptomatic congestive heart failure
    • Cerebrovascular accident
    • Transient ischemic attack
    • Pulmonary embolism
    • Deep vein thrombosis
    • Other significant thromboembolic event
  • No known coagulopathy or bleeding diathesis
  • No history of CNS, pulmonary, GI, or urinary bleeding
  • No known history of drug-induced liver injury
  • Resting systolic blood pressure ≤ 160 mm Hg or diastolic blood pressure ≤ 100 mm Hg
  • No history of or ongoing clinically significant illness, medical condition, surgical history, physical finding, ECG finding, or laboratory abnormality that, in the opinion of the investigator, could affect the safety of the patient, alter the absorption of the study drug, or impair the assessment of study results

PRIOR CONCURRENT THERAPY:

  • More than 4 weeks since prior and no other concurrent anti-neoplastic therapy for KS, including chemotherapy, radiotherapy, local therapy, or biological therapy
  • More than 60 days since prior local therapy for any KS-indicator lesion unless the lesion has clearly progressed since treatment

    • Any prior local therapy for indicator lesions (regardless of the elapsed time) should not be allowed unless there is evidence of clear-cut progression of that lesion
  • More than 28 days since prior and no other concurrent investigational drugs or therapy (other than antiretroviral therapy or agents available on a treatment IND)
  • More than 30 days since prior major surgery and recovered
  • More than 14 days since prior treatment for an acute infection (other than oral thrush or genital herpes) or other serious medical illness
  • No concurrent surgical procedures
  • No concurrent systemic corticosteroid therapy, other than replacement doses
  • No concurrent anticoagulant therapy, including warfarin, heparin (including low molecular weight heparin), or antiplatelet drugs (e.g., clopidogrel bisulfate)

    • Concurrent aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) allowed provided the dose does not exceed the maximum recommended dose
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00686842

Locations
United States, California
Rebecca and John Moores UCSD Cancer Center
La Jolla, California, United States, 92093-0658
UCLA Clinical AIDS Research and Education (CARE) Center
Los Angeles, California, United States, 90095-1793
USC/Norris Comprehensive Cancer Center and Hospital
Los Angeles, California, United States, 90033-1048
United States, Hawaii
Cancer Research Center of Hawaii
Honolulu, Hawaii, United States, 96813
United States, Massachusetts
Beth Israel Deaconess Medical Center
Boston, Massachusetts, United States, 02215
United States, New York
Memorial Sloan-Kettering Cancer Center
New York, New York, United States, 10065
United States, Ohio
Arthur G. James Cancer Hospital and Richard J. Solove Research Institute at Ohio State University Comprehensive Cancer Center
Columbus, Ohio, United States, 43210-1240
United States, Washington
Floyd and Delores Jones Cancer Institute at Virginia Mason Medical Center
Seattle, Washington, United States, 98111
Sponsors and Collaborators
AIDS Malignancy Clinical Trials Consortium
PTC Therapeutics
The EMMES Corporation
Investigators
Study Chair: Susan E. Krown, MD Memorial Sloan-Kettering Cancer Center
  More Information

No publications provided

Responsible Party: AIDS Malignancy Clinical Trials Consortium
ClinicalTrials.gov Identifier: NCT00686842     History of Changes
Other Study ID Numbers: AMC-059, U01CA121947, CDR0000596565, PTC299-ONC-005-KS
Study First Received: May 29, 2008
Results First Received: January 30, 2012
Last Updated: August 27, 2014
Health Authority: United States: Federal Government
United States: Food and Drug Administration
United States: Institutional Review Board

Keywords provided by AIDS Malignancy Clinical Trials Consortium:
HIV infection
AIDS-related Kaposi sarcoma
recurrent Kaposi sarcoma
Treatment Experienced

Additional relevant MeSH terms:
Sarcoma
Sarcoma, Kaposi
DNA Virus Infections
Herpesviridae Infections
Neoplasms
Neoplasms by Histologic Type
Neoplasms, Connective and Soft Tissue
Neoplasms, Vascular Tissue
Virus Diseases

ClinicalTrials.gov processed this record on October 20, 2014