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Completed

NCT Number: NCT01495351

Study of ABT-888 in Combination With Bortezomib and Dexamethasone in Patients With Relapsed Refractory Myeloma

The combination of PARP inhibitor (ABT-888) with a proteasome inhibitors (bortezomib) have demonstrated significant anti-myeloma effects in preclinical lab and animal studies. The goal of this phase I trial is to evaluate in patients with relapsed or refractory multiple myeloma the safety, toxicity profile and tolerability of ABT-888 (Veliparib) administered on a schedule including twice daily oral dosing for 14 days followed by 1 week rest in combination with standard dosing of Bortezomib.

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Key information

Conditions

Multiple Myeloma Blood Protein Disorders Cardiovascular Diseases Hematologic Diseases Hemic and Lymphatic Diseases Hemorrhagic Disorders Hemostatic Disorders Immune System Diseases Immunoproliferative Disorders Lymphoproliferative Disorders Neoplasms Neoplasms by Histologic Type Neoplasms, Plasma Cell Paraproteinemias Vascular Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Tom Baker Cancer Centre

Calgary, Alberta, T2N 4N2, Canada

About this study

This is a dose-finding / dose escalation phase I trial of ABT-888 (Veliparib) in combination with Bortezomib and Dexamethasone in patients with relapsed or refractory multiple myeloma. ABT-888 is given orally (PO) twice daily (every 12 hours) for 14 days in a 21 days cycle.

First dose to be given within 1 hour of Bortezomib on day 1. Planned starting dose is 20 mg PO every 12 hours. Starting dose escalation is planned until an MTD is reached.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Confirmed diagnosis of multiple myeloma.
  • Measurable disease, according to the International Myeloma Working Group criteria.
  • ECOG performance status 0, 1 or 2.
  • Patients must have received prior treatment for MM and have relapsed or progressed on prior therapy; no limit on number of prior treatment regimens, but prior treatment must be completed 2 weeks prior to registration. Prior exposure to Bortezomib is not an exclusion criteria as long as patients did not progress or relapse while receiving or within 3 months of completing trt with bortezomib
  • Prior radiation, completed at least 4 weeks prior to registration, is permitted.
  • Adequate marrow reserve, liver and renal function

Exclusion criteria

  • patients with a history of other malignancies, except: adequately treated nonmelanoma skin cancer, curatively treated in-situ cancer of the cervix, prostate cancer with stable PSA for > 3 years, or other solid tumours curatively treated with no evidence of disease for > 5 years.
  • Patients with preexisting grade 2 (or higher) sensory neuropathy or grade 1 sensory neuropathy with neuropathic pain.
  • Pregnant or lactating women
  • Patients receiving concurrent treatment with other anti-cancer therapy any other investigational agents.
  • Active or uncontrolled infections
  • Patient with known documented congenital or acquired risk factor for thromboembolic event
  • Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive

Treatment and study plan

ABT-888/Bortezomib

Drug

ABT-888 is given orally (PO) twice daily (every 12 hours) for 14 days in a 21 days cycle. First dose to be given within 1 hour of Bortezomib on day 1. Planned starting dose is 20 mg PO every 12 hours. Starting dose escalation is planned until an MTD is reached.

Primary outcomes

  1. Determine the maximum tolerated dose (MTD) of ABT-888.

    Time frame: 21 Day Cycle

    Study follows a modified dose escalation scheme with a 3+3 design (3 to 6 patients per dose level or cohort). Only the ABT-888 dose will be escalated with a maximum dose of ABT-888 of 100 mg PO BID. If >1 out 6 patients at any dose level suffer dose limiting toxicity, then dose escalation is stopped, and this dose is declared as MTD. 3 additional patients will be entered at the next lowest dose level. The recommended phase 2 dose is defined as the dose level with ≤ 1 out of 6 patients experiencing DLTs at the highest dose level below the MTD.

  2. Identify the Dose Limiting Toxicities (DLT) of ABT-888

    Time frame: 21 Day Cycle

    All adverse events, including DLTs, are graded according to the NCI CTCAE, v4.0. A DLT is defined as any grade 3 or higher non-hematologic toxicity, or any grade 4 hematologic toxicity, considered by the investigator to be related to the study drugs and occurring during Days 1-22 of Cycle 1.

Secondary outcomes

  1. Activity Objective - Preliminary assessment of the anti-tumor activity of ABT-888

    Time frame: 21 day cycle

    Response to study drugs is assessed at the end of each cycle according to the International Myeloma Working Group (IMWG) response criteria.

  2. Exploratory Objective - Preliminary assessment of potential biomarkers

    Time frame: 24 months

    Gene expression profiling is performed at baseline and compared between responders versus non-responders in order to identify a "treatment response signature". 2.5 mg of RNA will be extracted from plasma cells sorted from pre-treatment (D1, cycle 1) (n=20) and post-treatment (D11, cycle 1) (n=20) bone marrow aspirates collected from patients treated in the extension cohort. cRNAs will be hybridized onto the U133 Plus 2.0 gene chips and raw data files acquired using Affymetrix Microarray Suite version 5.1 software and analyzed with the Partek Genomics Suite v6.4.

  3. Exploratory Objective - Determine in vivo the effect of ABT-888 on PARP inhibitors.

    Time frame: 24 Months

    Poly-ADP-ribose (PAR) levels are measured in sorted CD138+ plasma cells from pre-ABT-888 treatment on day 1 cycle1, as well as post ABT-888 treatment (within 4-6 hours) on days 4 and 11. PAR levels will be measured by standardized ELISA assays (HT PARP in vivo Pharmacodynamic Assay II™, Trevigen).

  4. Determine invivo the effects of Bortezomib on the plasma cells DNA genes expression and function

    Time frame: 24 Months

    Gene expression profiling is performed at baseline prior to treatment with bortezomib and on days 4 and 11 post bortezomib treatment. 2.5 mg of RNA will be extracted from plasma cells sorted from bone marrow aspirates collected from patients treated on trial. cRNAs will be hybridized onto the U133 Plus 2.0 gene chips and raw data files acquired using Affymetrix Microarray Suite version 5.1 software and analyzed with the Partek Genomics Suite v6.4.

Sponsors and collaborators

Lead sponsor

AHS Cancer Control Alberta

Other

Collaborators

  • Abbott
  • Tom Baker Cancer Centre

Registry information

Official study title

Phase I Study of ABT-888 in Combination With Bortezomib and Dexamethasone in Patients With Relapsed Refractory Myeloma

Important dates

Study start
2011
Primary completion
2015
Study completion
2015
First posted
Dec 20, 2011
Registry last updated
Sep 25, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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