PTC299 in Treating Patients With HIV-Related Kaposi Sarcoma

Kaposi's Sarcoma Clinical Trial

Official title:

A Phase I/II Trial of PTC299 in Patients With HIV-Related Kaposi's Sarcoma

Clinical Trial Details — Status: Terminated

Administrative data

• NCT number: NCT00686842
• Other study ID #: AMC-059
• Secondary ID: U01CA121947CDR00
• Status: Terminated
• Phase: Phase 1/Phase 2
• Start date: September 2008
• Est. completion date: December 2010

Study information

• Verified date: May 2018
• Source: AIDS Malignancy Consortium
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

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.

Recruitment information / eligibility

• Status: Terminated
• Enrollment: 17
• Est. completion date: December 2010
• Est. primary completion date: November 2010
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 120 Years

Eligibility

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

Related Conditions & MeSH terms

• Kaposi's Sarcoma
• Sarcoma
• Sarcoma, Kaposi

Intervention

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.
• 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.
• 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-1a and proliferation, measured by Ki-67 staining.
• 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-1a and proliferation, measured by Ki-67 staining.
• 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-1a and proliferation, measured by Ki-67 staining.

Locations

Country	Name	City	State
United States	Beth Israel Deaconess Medical Center	Boston	Massachusetts
United States	Arthur G. James Cancer Hospital and Richard J. Solove Research Institute at Ohio State University Comprehensive Cancer Center	Columbus	Ohio
United States	Cancer Research Center of Hawaii	Honolulu	Hawaii
United States	Rebecca and John Moores UCSD Cancer Center	La Jolla	California
United States	UCLA Clinical AIDS Research and Education (CARE) Center	Los Angeles	California
United States	USC/Norris Comprehensive Cancer Center and Hospital	Los Angeles	California
United States	Memorial Sloan-Kettering Cancer Center	New York	New York
United States	Floyd and Delores Jones Cancer Institute at Virginia Mason Medical Center	Seattle	Washington

Sponsors (4)

Lead Sponsor	Collaborator
AIDS Malignancy Consortium	National Cancer Institute (NCI), PTC Therapeutics, The EMMES Corporation

Country where clinical trial is conducted

United States, 

References & Publications (1)

Bender Ignacio RA, Lee JY, Rudek MA, Dittmer DP, Ambinder RF, Krown SE; AIDS Malignancy Consortium (AMC)-059 Study Team. Brief Report: A Phase 1b/Pharmacokinetic Trial of PTC299, a Novel PostTranscriptional VEGF Inhibitor, for AIDS-Related Kaposi's Sarcoma: AIDS Malignancy Consortium Trial 059. J Acquir Immune Defic Syndr. 2016 May 1;72(1):52-7. doi: 10.1097/QAI.0000000000000918. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Safety and Toxicity of Anti-VEGF Small Molecule PTC299	Patients who experienced an adverse event of grade 3 or greater	All study visits
Primary	Maximum Tolerated Dose		After each group of 3 subjects completes cycle 1 of treatment
Primary	Response to Treatment		After each 28-day cycle of treatment and at discontinuation of therapy
Secondary	Pharmacokinetics		Days 1, 15, 28, 57
Secondary	Effects of Study Drug on Serum and Plasma VEGF, VEGFR, and Cytokine Profiles		On the first day of every 28-day cycle of treatment, Day 15, and treatment discontinuation
Secondary	Effects of Study Drug on HIV and KSHV Viral Loads		Screening, end of cycle 1, end of every third cycle thereafter, and treatment discontinuation
Secondary	Effects of Study Drug on T-lymphocyte Subsets (i.e., CD4 and CD8)		Screening, day 29, every 3 cycles thereafter, and at treatment discontinuation
Secondary	Effects of Study Drug on VEGF, VEGFR-2 and -3, Phospho-Akt, p53, and HIF-1a Expression and Tumor Cell Proliferation, as Measured by Ki-67 Staining, in Tumor Biopsy Samples		Screening and day 28
Secondary	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		Screening and day 28