Efficacy and Safety of Idelalisib in Combination With Obinutuzumab Compared to Chlorambucil in Combination With Obinutuzumab for Previously Untreated Chronic Lymphocytic Leukemia



Status:Terminated
Conditions:Blood Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:11/21/2018
Start Date:April 21, 2015
End Date:May 13, 2016

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A Phase 3, Randomized, Open-Label Study Evaluating the Efficacy and Safety of Idelalisib in Combination With Obinutuzumab Compared to Chlorambucil in Combination With Obinutuzumab for Previously Untreated Chronic Lymphocytic Leukemia

The primary objective of this study is to evaluate the effects of idelalisib with
obinutuzumab versus the combination of chlorambucil and obinutuzumab on progression-free
survival (PFS) in participants with previously untreated chronic lymphocytic leukemia (CLL).

An increased rate of deaths and serious adverse events (SAEs) among participants with
front-line CLL and early-line indolent non-Hodgkin lymphoma (iNHL) treated with idelalisib in
combination with standard therapies was observed by the independent data monitoring committee
(DMC) during regular review of 3 Gilead Phase 3 studies. Gilead reviewed the unblinded data
and terminated those studies in agreement with the DMC recommendation and in consultation
with the US Food and Drug Administration (FDA). All front-line studies of idelalisib,
including this study, were also terminated.


Key Inclusion Criteria:

- Not a candidate for fludarabine therapy based on either:

1. creatinine clearance < 70 mL/min, or

2. Cumulative Illness Rating Scale score > 6, by assessment of the investigator

- Diagnosis of B-cell CLL, with diagnosis established according to International
Workshop on Chronic Lymphocytic Leukemia (IWCLL)

- No prior therapy for CLL other than corticosteroids for disease complications.

- CLL that warrants treatment

- Presence of measurable lymphadenopathy

- Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 2

Key Exclusion Criteria:

- Known histological transformation from CLL to an aggressive lymphoma (ie, Richter
transformation)

- Known presence of myelodysplastic syndrome

- Evidence of ongoing systemic bacterial, fungal, or viral infection at the time of
randomization

- Ongoing liver injury

- Ongoing drug-induced pneumonitis

- Ongoing inflammatory bowel disease

- History of prior allogeneic bone marrow progenitor cell or solid organ transplantation

- Ongoing immunosuppressive therapy other than corticosteroids

- Concurrent participation in another therapeutic clinical trial

- Undergone major surgery within 30 days prior to randomization

- Known hypersensitivity or intolerance to any of the active substances or excipients in
the formulations for idelalisib, obinutuzumab, or chlorambucil

- History of non-infectious pneumonitis

- Received last dose of study drug on another therapeutic clinical trial within 30 days
prior to randomization

Note: Other protocol defined Inclusion/Exclusion criteria may apply.
We found this trial at
7
sites
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Canton, OH
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Darlinghurst, New South Wales 2010
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Darlinghurst,
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Greenville, South Carolina 29607
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Greenville, SC
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Santa Barbara, California 93105
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Santa Barbara, CA
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Santa Monica, California 90404
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Santa Monica, CA
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Southington, Connecticut 06489
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Southington, CT
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Whittier, California 90603
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Whittier, CA
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