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Safety and Dose Study of GRN163L to Treat Patients With Chronic Lymphoproliferative Disease(CLD)

A Phase I, Sequential Cohort, Dose Escalation Trial to Determine the Safety, Tolerability, and Maximum Tolerated Dose of GRN163L in Patients With Chronic Lymphoproliferative Disease

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00124189
Enrollment
48
Registered
2005-07-27
Start date
2005-07-31
Completion date
2013-03-31
Last updated
2015-12-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Lymphoproliferative Diseases

Keywords

Chronic lymphocytic leukemia, T-cell prolymphocytic leukemia, Chronic lymphoproliferative diseases, Telomerase, Telomerase Inhibition

Brief summary

The purpose of this study is to determine the safety and maximum tolerated dose of GRN163L in treating patients with refractory or relapsed chronic lymphoproliferative disease.

Detailed description

Imetelstat Sodium (GRN163L) is a telomerase template antagonist with in vitro and in vivo activity in a variety of tumor model systems. Telomerase is an enzyme that is active primarily in tumor cells and is crucial for the indefinite growth of tumor cells. Inhibition of telomerase may result in antineoplastic effects. High telomerase levels and short telomere lengths correlate with other markers of poor prognosis in patients with chronic lymphoproliferative disease.

Interventions

Weekly intravenous infusion

Sponsors

Geron Corporation
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 18 years of age or older * Male or female * Chronic lymphoproliferative disease with related biology or similar clinical pattern to B-Cell Leukemia (CLL)including: small lymphocytic lymphoma (SLL), T cell prolymophocytic leukemia (T-PLL), B cell prolymphocytic leukemia (B-PLL), mantle cell lymphoma or other non-Hodgkins lymphoma in leukemic phase (peripheral blood circulating malignant cells present), Waldenstrom's macroglobulinemia * Must have relapsed from or be refractory to prior therapeutic regimens * Patients with CLL or SLL must have received at least one prior purine analogue-based chemotherapy regimen (eg, fludarabine, pentostatin or cladribine) * If previously treated with an anthracycline, anthracenedione, or trastuzumab, must have left ventricular ejection fraction \> 50% * ECOG performance status 0-2 * Life expectancy 3 months or greater

Exclusion criteria

* Pregnant or lactating women * Active 2nd malignancy or history of another malignancy within 2 years, except:treated, non-melanoma skin cancer,treated breast or cervical carcinoma in situ,or resected T1a or b prostate cancer * Chemotherapeutic agents within 4 weeks prior to study * High dose CTX with stem cell support within 6 months prior to study * Signal transduction inhibitors,or monoclonal antibodies within 4 weeks prior to study * Immunotherapy or biological response modifiers within 4 weeks prior to study * Systemic hormonal therapy within 4 weeks prior to study * Anticoagulant therapy, antiplatelet therapy within 2 weeks prior to study * Radiotherapy within 4 weeks prior to study * Active autoimmune disorder * Central nervous system or leptomeningeal involvement * Clinically significant cardiovascular disease * Known HIV infection * Serious/active infection * Surgical procedure within 2 weeks

Design outcomes

Primary

MeasureTime frame
Safety, tolerability, dose-limiting toxicities (DLT), and maximum tolerated dose (MTD) or recommended phase II dose of GRN163L in patients with relapsed or refractory chronic lymphoproliferative diseaseFirst 3 weeks

Secondary

MeasureTime frame
PK and PDMeasured in the first 6 weeks

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026