A Phase 3 Trial of Brentuximab Vedotin(SGN-35) Versus Physician's Choice (Methotrexate or Bexarotene) in Participants With CD30-Positive Cutaneous T-Cell Lymphoma (ALCANZA Study)

ORR4 was determined by an Independent Review Facility (IRF) based on Global Response Score (GRS) which consisted of a skin assessment by the investigator using the modified severity-weighted assessment tool (mSWAT), nodal and visceral radiographic assessment by an IRF and for the participants with mycosis fungoides (MF) only, detection of circulation Sezary cells. Participants whose first response occurred after the start of subsequent anticancer therapy were excluded. Response Criteria was based on International Society for Cutaneous Lymphomas (ISCL), United States Cutaneous Lymphoma Consortium (USCLC) and Cutaneous Lymphoma Task Force (CLTF) of the European Organisation for Research and Treatment of Cancer (EORTC) Consensus guidelines (Olsen, 2011).

Complete Response (CR) was determined by the IRF based on Global Response Score (GRS) which consisted of a skin assessment by the investigator using the modified severity-weighted assessment tool (mSWAT), nodal and visceral radiographic and for the participants with mycosis fungoides (MF) only, detection of circulation Sezary cells. Response Criteria was based on ISCL, USCLC and CLTF of the EORTC Consensus guidelines (Olsen, 2011).

PFS was assessed by the IRF and is defined as the time from randomization until disease progression or death due to any cause, whichever occurs first. Disease progression was based on ISCL, USCLC and CLTF of the EORTC Consensus guidelines (Olsen, 2011).

Skindex-29 is a 29-item dermatology-specific health-related quality of life (HRQoL). The Skindex-29 incorporates a 28-day recall period and consists of 3 domains: symptoms, emotions, and functioning. The domain scores and an overall score are expressed on a 100-point scale, from 0 to 100 with higher scores indicating lower levels of health- HRQoL. A negative change (reduction) from Baseline indicates improvement.

Duration of response was assessed by the IRF in participants with confirmed response [CR or Partial Response (PR)] and is defined as the time between first documentation of response and disease progression. Response Criteria was based on ISCL, USCLC and CLTF of the EORTC Consensus guidelines (Olsen, 2011).

Duration of skin response (CR and PR) was assessed by the investigator and is defined as the time between the first skin response to progressive disease in skin. Per mSWAT, CR is defined as 100% clearance of skin lesions. PR is defined as 50%-99% clearance of skin disease from Baseline; No new tumors in participants without tumors at Baseline -MF; No new tumors-primary cutaneous anaplastic large cell lymphoma (pcALCL).Progressive disease is defined as ≥ 25% increase in skin disease from baseline, or loss of response: in those with CR or PR, increase of skin score of greater than the sum of nadir plus 50% baseline score, or new tumors in participants without tumors at baseline (MF).

EFS was assessed by the IRF and is defined as the time from randomization until any cause of treatment failure: disease progression, discontinuation of treatment for any reason, or death due to any cause, whichever occurs first. Disease progression was based on ISCL, USCLC and CLTF of the EORTC Consensus guidelines (Olsen, 2011).

Blood was collected and evaluated for ATA and neutralizing ATA in all participants who received brentuximab vedotin to assess immunogenicity.

Skindex-29 is a 29-item dermatology-specific health-related quality of life (HRQoL). The Skindex-29 incorporates a 28-day recall period and consists of 3 domains: symptoms, emotions, and functioning. The domain scores and an overall score are expressed on a 100-point scale, 0 to 100 with higher scores indicating lower levels of health- HRQoL. A negative change (reduction) from Baseline indicates improvement.

FACT-G is a 27-item general cancer QOL instrument completed by participants receiving cancer treatment. FACT-G incorporates a 7-day recall period and contains 4 primary subscales: Physical Well-Being (PWB; sum of 7 items, point range 0-28); Social/Family Well-Being (SWB, sum of 7-items, point range 0-28); Emotional Well-Being (EWB; sum of 6-items, point range 0-24); Functional Well-Being (FWB; sum of 7-items, point range 0-28); Fact-G total score=sum of PWB, SWB, EWB, FWB, point range 0-108. Higher scores for the total scales and subscales indicate better quality of life. A negative change (reduction) from Baseline indicates improvement.

AEs and SAEs were assessed according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 4.03. An Adverse Event (AE) is defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. A SAE is any AE that results in death, is life-threatening, requires inpatient hospitalization or prolongation of an existing hospitalization, results in significant disability or incapacity, is a congenital anomaly/birth defect or is a medically important event.