A Brentuximab Vedotin Trial for Patients Who Have Previously Participated in a Brentuximab Vedotin Study

A Brentuximab Vedotin Trial for Patients Who Have Previously Participated in a Brentuximab Vedotin Study

Treatment With SGN-35 in Patients With CD30-positive Hematologic Malignancies Who Have Previously Participated in an SGN-35 Study

This is a multicenter, open-label study to evaluate the safety and efficacy of treatment with brentuximab vedotin (SGN-35) in patients who have previously participated in an brentuximab vedotin study.

This is a multicenter, open-label study to evaluate single-agent brentuximab vedotin (SGN-35) treatment in patients who previously participated in a brentuximab vedotin study, including Studies SGN35-005 (NCT01100502), SGN35-007 (NCT01026233), and SGN35-008 (NCT01026415). Patients treated on this study (SGN35-006) could re-enroll on study if eligible. The study consisted of 2 arms, as follows: Retreatment arm: Patients with CD30-positive hematologic malignancies who experienced a complete remission (CR) or partial remission (PR) with previous brentuximab vedotin treatment on a clinical study and subsequently experienced disease progression or relapse. The purpose of this arm was to assess safety and efficacy of retreatment with brentuximab vedotin. Extension treatment arm: Patients with either CD30-positive hematologic or nonhematologic malignancies who completed treatment in a prior brentuximab vedotin study without unacceptable toxicity and experienced clinical benefit as assessed by the investigator. The purpose of this arm was to enable patients who participated in certain prior brentuximab vedotin trials to receive extension treatment and to assess patient safety and survival in the extension treatment setting.

Antibodies, Monoclonal, Antibody-Drug Conjugate, Antigens, CD30, Drug Therapy, Hematologic Diseases, Immunotherapy, Monomethylauristatin E

Every 3 weeks by IV infusion (1.2 or 1.8 mg/kg) until disease progression, unacceptable toxicity, or study closure

Percentage of participants in the retreatment arm who achieved a best response of complete remission (CR, disappearance of all evidence of disease) or partial remission (PR, regression of greater than or equal to 50% of measurable disease and no new sites) per Cheson 2007 Revised Response Criteria for Malignant Lymphoma.

Counts of participants who had adverse events or treatment-emergent adverse events (TEAE, defined as newly occurring or worsening after first dose on SGN35-006). Serious adverse events are reported from the time of informed consent. National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE version 3.0) were used to assess severity (1=mild, 2=moderate, 3=severe, 4=life threatening/disabling, 5=death). Relatedness to study drug was assessed by the investigator (Yes/No). Participants with multiple occurrences of an adverse event within a category are counted once within the category.

Counts of study participants with post-baseline laboratory abnormalities of Grade 3 or greater per NCI CTCAE version 3.0. Participants with multiple occurrences of a laboratory abnormality within a category are counted once in that category.

Duration of objective response (CR + PR) on retreatment, defined as time of initial response until disease progression or death

Progression-free survival, defined as time from start of study treatment in the retreatment arm to disease progression per investigator or death due to any cause

Overall survival for both extension and retreatment arms, defined as time from start of study treatment to date of death due to any cause

Counts of participants with anti-brentuximab vedotin antibodies at any time during extension treatment on Study SGN35-006 or number of retreatment experiences with anti-brentuximab vedotin antibodies at any time during retreatment

Inclusion Criteria: Participated in a previous brentuximab vedotin study. CD30-positive hematologic malignancy. At a minimum, experienced clinical benefit in the prior brentuximab vedotin study. For retreatment, patients must have previously achieved either complete or partial remission with brentuximab vedotin and experienced disease progression after discontinuing the prior brentuximab vedotin study. Exclusion Criteria: Withdrew consent to participate in any prior brentuximab vedotin study.

Bartlett NL, Chen R, Fanale MA, Brice P, Gopal A, Smith SE, Advani R, Matous JV, Ramchandren R, Rosenblatt JD, Huebner D, Levine P, Grove L, Forero-Torres A. Retreatment with brentuximab vedotin in patients with CD30-positive hematologic malignancies. J Hematol Oncol. 2014 Mar 19;7:24. doi: 10.1186/1756-8722-7-24.

Gopal AK, Ramchandren R, O'Connor OA, Berryman RB, Advani RH, Chen R, Smith SE, Cooper M, Rothe A, Matous JV, Grove LE, Zain J. Safety and efficacy of brentuximab vedotin for Hodgkin lymphoma recurring after allogeneic stem cell transplantation. Blood. 2012 Jul 19;120(3):560-8. doi: 10.1182/blood-2011-12-397893. Epub 2012 Apr 17.