A Phase 2 Open Label Trial of Brentuximab Vedotin (SGN-35) for Systemic Anaplastic Large Cell Lymphoma

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborator:
Millennium Pharmaceuticals, Inc.
Information provided by (Responsible Party):
Seattle Genetics, Inc.
ClinicalTrials.gov Identifier:
NCT00866047
First received: March 19, 2009
Last updated: December 20, 2013
Last verified: December 2013
Results First Received: September 15, 2011  
Study Type: Interventional
Study Design: Allocation: Non-Randomized;   Endpoint Classification: Safety/Efficacy Study;   Intervention Model: Single Group Assignment;   Masking: Open Label;   Primary Purpose: Treatment
Conditions: Lymphoma, Large-Cell, Anaplastic
Lymphoma, Non-Hodgkin
Intervention: Drug: brentuximab vedotin

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Enrollment period: Jun 2009 - May 2010

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
No text entered.

Reporting Groups
  Description
Brentuximab Vedotin Brentuximab vedotin 1.8 mg/kg every 3 weeks by intravenous (IV) infusion

Participant Flow for 2 periods

Period 1:   Treatment Period
    Brentuximab Vedotin  
STARTED     58  
COMPLETED     3 [1]
NOT COMPLETED     55  
Progressive disease                 13  
Adverse Event                 14  
Physician Decision                 14  
Withdrawal by Subject                 5  
Continuing on treatment                 9  
[1] Number who completed 16 cycles of treatment

Period 2:   Follow-up Period
    Brentuximab Vedotin  
STARTED     43 [1]
COMPLETED     12 [2]
NOT COMPLETED     31  
Continuing in follow-up                 31  
[1] All participants were to be followed after treatment
[2] Completed survival follow-up due to death



  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
  Description
Brentuximab Vedotin Brentuximab vedotin 1.8 mg/kg every 3 weeks by IV infusion

Baseline Measures
    Brentuximab Vedotin  
Number of Participants  
[units: participants]
  58  
Age, Customized  
[units: years]
Median ( Full Range )
  52.0  
  ( 14 to 76 )  
Gender  
[units: participants]
 
Female     25  
Male     33  
Race (NIH/OMB)  
[units: participants]
 
American Indian or Alaska Native     0  
Asian     1  
Native Hawaiian or Other Pacific Islander     0  
Black or African American     7  
White     48  
More than one race     0  
Unknown or Not Reported     2  
Eastern Cooperative Oncology Group Performance Status [1]
[units: participants]
 
0     19  
1     38  
2     1  
3-5     0  
ALK Status [2]
[units: participants]
 
Positive     16  
Negative     42  
[1]

0 = Normal activity

  1. = Symptoms but ambulatory
  2. = In bed <50% of the time
  3. = In bed >50% of the time
  4. = 100% bedridden
  5. = Dead
[2] Immunophenotype status with respect to anaplastic lymphoma kinase (ALK) protein



  Outcome Measures
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1.  Primary:   Objective Response Rate by Independent Review Group   [ Time Frame: up to 12 months ]

2.  Secondary:   Complete Remission Rate by Independent Review Group   [ Time Frame: up to 12 months ]

3.  Secondary:   Duration of Objective Response by Kaplan-Meier Analysis   [ Time Frame: up to 17.5 months ]

4.  Secondary:   Duration of Objective Response in Participants With Complete Remission by Kaplan-Meier Analysis   [ Time Frame: up to 17.5 months ]

5.  Secondary:   Progression-free Survival by Kaplan-Meier Analysis   [ Time Frame: up to 17.5 months ]

6.  Secondary:   Overall Survival   [ Time Frame: up to 17.5 months ]

7.  Secondary:   Adverse Events by Severity, Seriousness, and Relationship to Treatment   [ Time Frame: up to 12 months ]

8.  Secondary:   Hematology Laboratory Abnormalities >/= Grade 3   [ Time Frame: up to 12 months ]

9.  Secondary:   Chemistry Laboratory Abnormalities >/= Grade 3   [ Time Frame: up to 12 months ]

10.  Secondary:   Area Under the Curve   [ Time Frame: 3 weeks ]
  Hide Outcome Measure 10

Measure Type Secondary
Measure Title Area Under the Curve
Measure Description Area under the serum concentration-time curve from time 0 to 21 days following the first dose of brentuximab vedotin
Time Frame 3 weeks  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
All participants who received treatment

Reporting Groups
  Description
Brentuximab Vedotin Brentuximab vedotin 1.8 mg/kg every 3 weeks by IV infusion

Measured Values
    Brentuximab Vedotin  
Number of Participants Analyzed  
[units: participants]
  58  
Area Under the Curve  
[units: day¬†*¬†microgram/mL]
Geometric Mean ( Geometric Coefficient of Variation )
  98  
  ( 69% )  

No statistical analysis provided for Area Under the Curve



11.  Secondary:   Maximum Serum Concentration   [ Time Frame: 3 weeks ]

12.  Secondary:   Time of Maximum Serum Concentration   [ Time Frame: 3 weeks ]

13.  Other Pre-specified:   B Symptom Resolution   [ Time Frame: up to 12 months ]


  Serious Adverse Events


  Other Adverse Events


  More Information
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Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
The agreement is:
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.
unchecked Other disclosure agreement that restricts the right of the PI to discuss or publish trial results after the trial is completed.


Limitations and Caveats
Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
Maximum duration of follow-up was 17.5 months; 9 participants were continuing on treatment and 31 participants remained in survival follow-up at the time of the efficacy analyses.  


Results Point of Contact:  
Name/Title: Chief Medical Officer
Organization: Seattle Genetics, Inc.
phone: 855-473-2436
e-mail: medinfo@seagen.com


Publications:

Responsible Party: Seattle Genetics, Inc.
ClinicalTrials.gov Identifier: NCT00866047     History of Changes
Other Study ID Numbers: SG035-0004, 2008-006035-12
Study First Received: March 19, 2009
Results First Received: September 15, 2011
Last Updated: December 20, 2013
Health Authority: United States: Food and Drug Administration