Phase 2
N=8
QUILT-3.033: Haplo NK With SQ ALT-803 for Adults With Relapsed or Refractory AML
Acute Myeloid Leukemia
Bottom Line
View on ClinicalTrials.gov: NCT03050216 ↗Enrolled (actual)
8
Serious AEs
87.5%
Results posted
Nov 2020
Primary outcome: Primary: Number of Participants With Complete Remission With or Without Incomplete Platelet Recovery — 1 Participants
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 2
- Interventions
- ALT-803 (Biological)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- Masonic Cancer Center, University of Minnesota
- Primary completion
- Dec 2019
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Number of Participants With Complete Remission With or Without Incomplete Platelet Recovery |
1 | — |
| SECONDARY Incidence of in Vivo Expansion ≥100 of Donor Derived NK Cells Per /μl Blood |
— | — |
| SECONDARY Number of Participants Experiencing ALT-803 Associated Toxicity |
3 | — |
| SECONDARY Number of Participants Experiencing ALT-803 Associated Toxicity |
3 | — |
| SECONDARY Number of Participants Experiencing ALT-803 Associated Toxicity |
3 | — |
| SECONDARY Number of Participants Experiencing ALT-803 Associated Toxicity |
3 | — |
| SECONDARY Number of Participants With Treatment Related Mortality |
6 | — |
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).
Eligibility Criteria
Inclusion Criteria
- 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
- 7+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.
- HLA-haploidentical related donor (aged 12 to 75 years) with donor/recipient match based on a minimum of intermediate resolution DNA based Class I typing of the A and B locus (at least 2/4 class I allele)
- Karnofsky Performance Status ≥ 60%
- Adequate organ function within 14 days of study registration (28 days for pulmonary and cardiac) defined as:
- Creatinine: ≤ 2.0 mg/dL
- Hepatic: AST and ALT 50% corrected DLCO and FEV1.
- Cardiac Function: LVEF ≥ 40% by echocardiography, MUGA or cardiac MRI, no uncontrolled angina, severe uncontrolled ventricular arrhythmias, or electrocardiographic evidence of acute ischemia or active conduction system abnormalities.
- Able to be off prednisone or other systemic immunosuppressive medications for at least 3 days prior to NK cell infusion (excluding preparative regimen pre-medications) .
- Sexually active females of child bearing potential and males with partners of child bearing potential must agree to use effective contraception during therapy and for 4 months after completion of therapy .
- Voluntary written consent prior to the performance of any research related procedures.
Exclusion Criteria
- 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
Data sourced from ClinicalTrials.gov (NCT03050216). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.