Study of Vorinostat (MK-0683) With Follicular Lymphoma (FL), Other Indolent B-cell Non-Hodgkin's Lymphoma (B-NHL), or Mantle Cell Lymphoma (MCL) Participants (MK-0683-103)

Merck Sharp & Dohme LLC56 enrolled

Overview

The purpose of this study is to evaluate the safety, tolerability, and efficacy of vorinostat (MK-0683) in participants with relapsed and/or refractory follicular lymphoma. The exploratory purpose of this study is to evaluate efficacy of MK-0683 in participants with relapsed/refractory non-FL indolent B-NHL or relapsed/refractory MCL. The primary hypothesis is that MK-0683 will show efficacy in relapsed/refractory FL patients as measured by the Overall Response Rate.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Lymphoma

Interventions

VorinostatDRUG

Eligibility

Sex: ALLMin age: 20 YearsMax age: 74 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Participant has an histopathologically confirmed follicular lymphoma (FL), or other indolent B-cell non-Hodgkin's lymphoma (B-NHL) or mantle cell lymphoma (MCL) * Only relapsed/refractory FL can be included outside Japan * Participant has at least one measurable lesion by computerized tomography (CT) scan which is defined by Cheson's 1999 criteria * Participant has received at least 1 but up to 4 prior chemotherapeutic regimens, the most recent therapy must have failed to induce a partial response, or there must be recurrence in case of the most recent therapy has shown complete response, or there must be relapse in case of the most recent therapy has shown partial response * Life expectancy of \>4 months * Participant must have adequate organ and marrow function * Women of child bearing potential must be negative for pregnancy and agree to use effective contraceptive measures until 30 days after the last dose of MK-0683. * Men must agree to use effective contraceptive measures until 6 months after the last dose of MK-0683 Exclusion Criteria: * Participant has undergone allogenic transplant treatment or autologous stem cell transplant within 6 months * Participant with other active malignancies or central neurological infiltration with lymphoma * Participant with severe hepatic insufficiency * Participant with history of allergic reactions attributed to any component of MK-0683 * Participant is known to be human immunodeficiency virus (HIV) antibody-, hepatitis B virus antigen- or hepatitis C virus antibody-positive * Participant has undergone prior/concomitant treatment with MK-0683 or other histone deacetylase (HDAC) inhibitors

Outcomes

Primary Outcomes

Objective Response Rate (ORR)

ORR was defined as the percentage of participants who had a Complete Response (CR: Normal liver/spleen physical exam, all lymph nodes and nodal masses are normal, and there is no bone marrow involvement), a Complete Response/unconfirmed (CRu: Normal liver/spleen physical exam, plus at least a 75% decrease in the sum of the products of the greatest diameters of nodal masses if any are greater than 1.5 cm in their greatest diameter, normal or indeterminate bone marrow involvement), or a Partial Response (PR: Either normal physical exam, lymph nodes, and lymph node masses plus positive bone marrow involvement; OR normal physical exam or decrease in liver/spleen size plus at least a 50% decrease in the diameters of lymph nodes and nodal masses) as assessed using the international working group Non-Hodgkin's lymphoma standardized response criteria described by Cheson, BD in 1999. The percentage of participants who experienced a CR, CRu, or PR is presented.

Time frame: Up to 650 days

Number of Participants Who Experienced an Adverse Event (AE)

An AE was defined as any untoward medical occurrence in a participant administered study treatment and which did not necessarily have to have a causal relationship with this treatment. The number of participants who experienced an AE was presented.

Time frame: Up to approximately 29 months

Number of Participants Who Discontinued Study Drug Due to Experiencing an Adverse Event (AE)

An adverse event (AE) was defined as any untoward medical occurrence in a participant administered study treatment and which did not necessarily have to have a causal relationship with this treatment. The number of participants who discontinued from study drug due to an adverse event was reported.

Time frame: Up to 536 days

Secondary Outcomes

Time to Treatment Failure for Relapsed/Refractory FL

Time to Treatment Failure is defined as the time from allocation until the date of any treatment failure, including documented disease progression, or discontinuation of the study medication for any reason. Data was censored on the efficacy data cutoff date of 25 February, 2011.

Time frame: Up to 650 days

Time to Response for Relapsed/Refractory FL

Time to Response is defined as the time from allocation until the time of an initial response. Data was censored on the efficacy data cutoff date of 25 February, 2011.

Time frame: Up to 650 days