NCT03050216

Brief Summary

This is a multi-institutional Simon's optimal two-stage phase II trial of CD3/CD19 depleted, ALT-803 activated, haploidentical donor NK cells and subcutaneous ALT-803 given after lymphodepleting chemotherapy (CY/FLU) for the treatment of refractory or released acute myelogenous leukemia (AML).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
8

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started May 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 8, 2017

Completed
2 days until next milestone

First Posted

Study publicly available on registry

February 10, 2017

Completed
3 months until next milestone

Study Start

First participant enrolled

May 16, 2017

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2019

Completed
12 months until next milestone

Results Posted

Study results publicly available

November 27, 2020

Completed
Last Updated

July 18, 2023

Status Verified

July 1, 2023

Enrollment Period

2.6 years

First QC Date

February 8, 2017

Results QC Date

October 30, 2020

Last Update Submit

July 14, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Participants With Complete Remission With or Without Incomplete Platelet Recovery

    To estimate the rate of complete remission with incomplete platelet recovery (CRp) - defined as leukemic clearance and neutrophil recovery without platelet recovery - by day 42 after the infusion of CD3/CD19 depleted, ALT-803 stimulated, donor NK cells and subcutaneous ALT-803 given after a non-myeloablative preparative regimen for the treatment of refractory or released acute myelogenous leukemia (AML)

    Day 42 post NK cell infusion

Secondary Outcomes (6)

  • Incidence of in Vivo Expansion ≥100 of Donor Derived NK Cells Per /μl Blood

    Day 14 post NK cell infusion

  • Number of Participants Experiencing ALT-803 Associated Toxicity

    Day 0

  • Number of Participants Experiencing ALT-803 Associated Toxicity

    Day 5

  • Number of Participants Experiencing ALT-803 Associated Toxicity

    Day 7

  • Number of Participants Experiencing ALT-803 Associated Toxicity

    Day 10

  • +1 more secondary outcomes

Study Arms (1)

Cy, FLU, Haplo NK and ALT-803

EXPERIMENTAL

Preparative Regimen of Fludarabine and Cyclophosphamide ALT-803 Activation of Donor NK Cells ALT-803 to Facilitate NK Cell Survival and Expansion

Biological: ALT-803

Interventions

ALT-803BIOLOGICAL

Preparative Regimen: Fludarabine 25 mg/m2 x 5 days start day -6 Cyclophosphamide 60 mg/kg x 2 days on day -5 and -4 ALT-803 Stimulated Donor NK Cells: The apheresis product (collected day -1) will be enriched for NK cells with the large-scale CliniMacs® device (Miltenyi) by depletion of CD3+ cells to remove T-lymphocytes and depletion of CD19+ cells to remove B-lymphocytes. The NK cell enriched product will be stimulated by overnight incubation with 36.1 ng/mL ALT-803 under GMP conditions and infused on day 0. ALT-803 to Facilitate NK Cell Survival and Expansion: ALT-803 at 10 mcg/kg subcutaneously (SC) with the 1st dose administered on day 0 (no sooner than 4 hours post NK cells), day +5 and day +10 for 3 doses total

Cy, FLU, Haplo NK and ALT-803

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of acute myeloid leukemia (AML) and meets one of the following disease criteria:
  • Primary induction failure:
  • De novo AML - no CR after 2 or more chemotherapy induction attempts
  • Secondary AML (from MDS or treatment related): no CR after 1 or more chemotherapy induction attempts
  • Relapse after chemotherapy: not in CR after 1, 2, or 3 re-induction attempts
  • Patients \> 60 years of age, the 1 cycle of chemotherapy is not required
  • Relapse after hematopoietic stem cell transplant:
  • Relapse must have occurred \> 18 months after transplant
  • No re-induction required and no more than 1 re-induction attempt is allowed
  • Notes:
  • For hypomethylating agents (i.e. decitabine, azacitidine) to count as an induction/re-induction attempt, the patient must have completed a minimum of 3 monthly cycles
  • For targeting agents (i.e. sorafenib) to count as an induction/re-induction attempt, the patient must have completed a minimum of 1 month without attaining CR
  • +3 followed by 5+2 counts as TWO induction attempts
  • Use of hydroxyurea is permitted to control blasts until Day -3 per Section 8.7
  • A history of AML related CNS involvement is allowed if CSF analysis is negative on 2 test dates at least 2 weeks apart prior to study treatment. The use of ongoing CNS maintenance therapy is allowed while on study.
  • +10 more criteria

You may not qualify if:

  • Acute leukemias of ambiguous lineage
  • Pregnant or breastfeeding - The agents used in this study include those that fall under Pregnancy Category D - have known teratogenic potential. Women of child bearing potential must have a negative pregnancy test at screening
  • Active autoimmune disease requiring systemic immunosuppressive therapy
  • History of severe asthma and currently on systemic chronic medications (mild asthma requiring inhaled steroids only is eligible)
  • New or progressive pulmonary infiltrates on screening chest X-ray or chest CT scan unless cleared for study by Pulmonary. Infiltrates attributed to infection must be stable/improving (with associated clinical improvement) after 1 week of appropriate therapy (4 weeks for presumed or documented fungal infections).
  • Uncontrolled bacterial, fungal or viral infections including HIV-1/2 or active hepatitis C/B - chronic asymptomatic viral hepatitis is allowed
  • Received any investigational agent within the 14 days before the start of study treatment (1st dose of fludarabine)
  • Prior ALT-803

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Masonic Cancer Center at University of Minnesota

Minneapolis, Minnesota, 55455, United States

Location

Related Publications (1)

  • Berrien-Elliott MM, Becker-Hapak M, Cashen AF, Jacobs M, Wong P, Foster M, McClain E, Desai S, Pence P, Cooley S, Brunstein C, Gao F, Abboud CN, Uy GL, Westervelt P, Jacoby MA, Pusic I, Stockerl-Goldstein KE, Schroeder MA, DiPersio JF, Soon-Shiong P, Miller JS, Fehniger TA. Systemic IL-15 promotes allogeneic cell rejection in patients treated with natural killer cell adoptive therapy. Blood. 2022 Feb 24;139(8):1177-1183. doi: 10.1182/blood.2021011532.

MeSH Terms

Conditions

Leukemia, Myeloid, Acute

Interventions

ALT-803

Condition Hierarchy (Ancestors)

Leukemia, MyeloidLeukemiaNeoplasms by Histologic TypeNeoplasmsHematologic DiseasesHemic and Lymphatic Diseases

Results Point of Contact

Title
Dr.Claudio G. Brunstein MD, PhD
Organization
Masonic Cancer Center, University of Minnesota

Study Officials

  • Jeffrey Miller, MD

    Masonic Cancer Center, University of Minnesota

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 8, 2017

First Posted

February 10, 2017

Study Start

May 16, 2017

Primary Completion

December 15, 2019

Study Completion

December 15, 2019

Last Updated

July 18, 2023

Results First Posted

November 27, 2020

Record last verified: 2023-07

Locations