Open-Label Extension Study of De-immunized DI-Leu16-IL2 Immunocytokine Administered in Participants With B-cell NHL

November 2, 2020 updated by: Alopexx Oncology, LLC

An Open-Label Extension Study of De-immunized DI-Leu16-IL2 Immunocytokine Administered in Patients With B-cell Non-Hodgkin Lymphoma (NHL)

This is an open-label extension study enrolling participants experiencing clinical benefit following 6 cycles of DI-Leu16-IL2 while enrolled in the Alopexx Oncology Dose-Escalation AO-101 study (NCT01874288). Participants will be permitted to continue to receive DI-Leu16-IL2 at the same dose, schedule, and route of administration they received during Study AO-101 (Main Study). Prior pre-treatment (for example, Rituximab) will continue as before.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
5

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Duarte, California, United States, 91010
        • City Of Hope
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • University of Minnesota
    • New Hampshire
      • Lebanon, New Hampshire, United States, 03756
        • Dartmouth-Hitchcock Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Participants currently entered on Alopexx Oncology Study AO-101
  2. Participants who received 6 cycles of DI-Leu16-IL2 on Study AO-101.
  3. Documented clinical benefit following 6th cycle of DI-Leu16-IL2
  4. Able to begin extension study within 8 weeks of receiving 6th cycle of DI-Leu16-IL2
  5. Participants must have received prior Rituximab-containing therapy.
  6. Participants in this extension study are to use adequate birth control measures (abstinence, oral contraceptives, barrier method with spermicide or surgical sterilization) during the study. Females of childbearing potential must have a negative serum pregnancy test on the days of dosing. A female of childbearing potential: 1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 24 consecutive months (that is, has had menses at any time in the preceding 24 consecutive months.
  7. Provide written informed consent prior to any study procedures.

Exclusion Criteria:

  1. Pregnant or lactating female
  2. An immediate need for palliative radiotherapy or systemic corticosteroid therapy.
  3. Actively infected with or chronic carriers of hepatitis B virus (HBV) as demonstrated by positive hepatitis B core antibody (HbcAb) or hepatitis B surface antigen (HbsAg). Participants who are sero-positive only, that is, surface antibody positive [HbsAb], are permitted.
  4. Other significant active infection
  5. Major surgery, chemotherapy, investigational agent, or radiation within 30 days of Day 1
  6. Uncontrolled hypertension (diastolic ≥ 100 millimeters of mercury [mmHg]) or hypotension (systolic ≤ 90 mmHg)
  7. History of prior therapy or a serious, uncontrolled medical disorder that in the Investigator's opinion would impair participation in the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: DI-Leu16-IL2 1.0 mg/m^2
Participants will receive DI-Leu16-IL2 1.0 milligrams per square meter (mg/m^2) subcutaneously (SC) for 3 consecutive days every 3 weeks (21-day cycle). Participants will continue to receive therapy through the duration of the study as long as they will have clinical benefit and will not experience any untoward side effects.
Drug: DI-Leu16-IL2
DI-Leu16-IL2 will be administered per dose and schedule specified in the arm.
Experimental: DI-Leu16-IL2 2.0 mg/m^2
Participants will receive DI-Leu16-IL2 2.0 mg/m^2 SC for 3 consecutive days every 3 weeks (21-day cycle). Participants will continue to receive therapy through the duration of the study as long as they will have clinical benefit and will not experience any untoward side effects.
Drug: DI-Leu16-IL2
DI-Leu16-IL2 will be administered per dose and schedule specified in the arm.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Best Overall Response (BOR) Assessed Per International Workshop for Non-Hodgkin Lymphoma (NHL) Response Criteria
Time Frame: First dose of study drug until first appearance of CR, CRu, PR, SD, or PD (up to 20 months)
BOR included complete response (CR), unconfirmed CR (CRu), partial response (PR), stable disease (SD), and progressive disease (PD). CR: 1)Disappearance of all detectable clinical and radiological evidence of disease; 2)lymph nodes (LN) regressed to normal size; 3)other organs (spleen, liver, kidneys) that were enlarged before therapy must have decreased in size; 4)clear bone marrow(BM) infiltrate. CRu: must meet CR criteria 1 and 3, as well as ≥1 of following: residual LN mass >1.5 centimeters (cm) in greatest transverse diameter; individual nodes that were previously confluent regressed by >75% in sum of product diameters (SPD); or indeterminate BM. PR: 6 largest dominant nodes or nodal masses decreased by ≤50% in SPD; no increase in size of other nodes; liver or spleen; splenic and hepatic nodules regressed ≥50% in SPD; and no new disease. SD: less than a PR but not PD. PD: 50% increase from nadir in SPD of any abnormal node for PR or nonresponders and appearance of any new lesion.
First dose of study drug until first appearance of CR, CRu, PR, SD, or PD (up to 20 months)
Tumor Measurement: Percent Change From Baseline in Sum of Product of Diameters at the End of Study
Time Frame: Baseline, end of study (EOS) (up to approximately 32 months)
Sum of product diameters sums the product of the 2 tumor measurements on each lesion. If only 1 measurement was available, it was used as the longest length and the product of the lengths in the sum. Baseline value is the last non-missing measurement prior to receiving study drug injection in the Main Study AO-101.
Baseline, end of study (EOS) (up to approximately 32 months)
Tumor Measurement: Percent Change From Baseline in Sum of Longest Diameters at the End of Study
Time Frame: Baseline, EOS (up to approximately 32 months)
Sum of longest diameters is the sum of the longest measured length of each tumor lesion. Baseline value is the last non-missing measurement prior to receiving study drug injection in the Main Study AO-101. None of the participants were considered evaluable in 'DI-Leu16-IL2 2.0 mg/m^2' arm for this outcome measure at the end of study, and therefore, data were not collected for that arm
Baseline, EOS (up to approximately 32 months)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
Time Frame: First dose of study drug up to EOS (up to 20 months)
An adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs with onset at the time of or following the start of treatment with study drug, or AEs starting before the start of treatment but increasing in severity or relationship at the time of or following the start of treatment. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.
First dose of study drug up to EOS (up to 20 months)
Number of Participants With a TEAE That Was Considered Related to a Clinically Significant Hematology or Serum Chemistry Abnormality
Time Frame: First dose of study drug up to EOS (up to 20 months)
TEAEs were defined as AEs with onset at the time of or following the start of treatment with study drug, or AEs starting before the start of treatment but increasing in severity or relationship at the time of or following the start of treatment. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section. Clinically significant hematology and serum chemistry abnormalities were identified at the Investigator's discretion.
First dose of study drug up to EOS (up to 20 months)
Number of Participants With a Clinically Significant Abnormal Physical Exam
Time Frame: First dose of study drug up to EOS (up to 20 months)
Clinically significant abnormal physical exams included extremities, head, ears, eyes, nose, throat, abdomen, respiratory system, lymphatic system, and integumentary system. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section. Clinically significant abnormal physical exams were identified at the Investigator's discretion.
First dose of study drug up to EOS (up to 20 months)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Alopexx Oncology, LLC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 4, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 11, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 11, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 23, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 28, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 2, 2014

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 27, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 2, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • AO-101-EXT

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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