NCT05952310

Brief Summary

This is an exploratory therapeutic study (according to the terminology of the "ICH Harmonised Tripartite Guideline Topic E8. General Considerations for Clinical Trials". EMEA, March 1998. CPMP/ICH/291/95), open-label, non-randomized, multicenter study. It is considered phase I/II since the safety and efficacy of the infusion of allogeneic haploidentical NK cells in combination with chemotherapy and/or radiotherapy in the treatment of pediatric, adolescent and young adult patients with refractory sarcoma will be sought.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
42mo left

Started Oct 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress51%
Oct 2022Oct 2029

Study Start

First participant enrolled

October 24, 2022

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

July 11, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 19, 2023

Completed
6.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 24, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 24, 2029

Last Updated

July 21, 2023

Status Verified

July 1, 2023

Enrollment Period

7 years

First QC Date

July 11, 2023

Last Update Submit

July 19, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Safety of allogeneic haploidentical adult differentiated Natural Killer cell infusion

    Safety of infusion of allogeneic haploidentical adult differentiated Natural Killers cells in combination with inteleukin-2 after chemotherapy and radiotherapy. Each patient will be monitored for the detection of possible adverse effects. The Common Terminology Criteria for Adverse Events V5.0 will be followed and the proportion of patients with toxicity will be determined according to the degree of toxicity. The intensity of toxic effects that cannot be classified according to the criteria for toxicity of the aforementioned system will be classified as follows (MedDRA classification): (a) Mild (asymptomatic); b) Moderate (symptomatic but does not significantly interfere with function); c) Severe (causes significant interference with function); d) Life-threatening

    Through study completion, an average of 7 years

Secondary Outcomes (3)

  • Disease progression

    Five-year after treatment

  • Infections (viral, fungal)

    Through study completion, an average of 7 years

  • Expression levels of Natural Killer cell inhibitory/activating ligands

    Through study completion, an average of 7 years

Study Arms (1)

Allogeneic Natural Killer cells

EXPERIMENTAL

Low doses (1x106/UI/m2) of subcutaneous interleukin-2 (IL-2) will be administered every 48h for a maximum of 6 doses, in conjunction with the NK cell infusion, to favor the expansion and antitumor effect of the NK cells.

Other: Natural Killer (NK) cells (a new immunotherapy)

Interventions

It is proposed to infuse allogeneic NK cells from a haploidentical donor, after administration of lymphoablative chemotherapy and/or radiotherapy, as a treatment in patients with sarcomas, who have completed conventional treatment but maintain detectable residual disease. The administration of low doses of radiotherapy is aimed at stressing residual tumor cells by increasing the expression of NK cell activating receptor ligands. The administration of prior chemotherapy aims at immunosuppressing the patient, allowing immunotherapy with allogeneic NK cells from haploidentical donor as well as autologous NK cell recovery to lead the immune reconstitution after chemotherapy, prolonging the antitumor effect. In conjunction with NK cell infusion, low doses (1x106/UI/m2) of interleukin 2 (IL-2) will be administered subcutaneously every 48h for a maximum of 6 doses, to favor the expansion and antitumor effect of NK cells.

Allogeneic Natural Killer cells

Eligibility Criteria

AgeUp to 30 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Patients aged between 0 and 30 years diagnosed with malignant sarcoma, who at the end of conventional treatment still have detectable residual disease (based on imaging techniques) or in case of stable disease or minimal disease when there is an absence of clinical benefit from chemotherapy (poor tolerance due to adverse effects related to chemotherapy).
  • Lansky/Karnofsky index \> 60%.
  • Mild-moderate (\<4) organ functional impairment (hepatic, renal, respiratory), according to National Cancer Institute criteria (NCI CTCAE v5.0).
  • Left ventricular ejection fraction \>39%.
  • Adult subjects who voluntarily signed informed consent prior to the first study intervention.
  • Minor subjects whose representative/legal guardian voluntarily signed the informed consent prior to the first intervention of the study.
  • In the case of mature minors (12 - 17 years of age), in addition to the consent signed by the legal guardian, the minor's assent will be obtained.
  • Presence of a compatible haploidentical donor (father or mother or sibling).

You may not qualify if:

  • Patients with a history of poor therapeutic compliance.
  • Patients who, after a psycho-social evaluation, are censored as unsuitable for the procedure.
  • Socio-familial situation that makes proper participation in the study impossible.
  • Patients with emotional or psychological problems secondary to the disease, such as post-traumatic stress disorder, phobias, delirium, psychosis, requiring specialist support.
  • Evaluation of the involvement of family members in the patient's health.
  • Impossibility to understand information about the trial.
  • Severe functional organ impairment (hepatic, renal, respiratory) (4), according to the criteria of the National Cancer Institute (NCI CTCAE 5.0).
  • Contraindications, interactions, precautions for use and dose reductions indicated in the corresponding data sheets must be considered.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Universitario La Paz

Madrid, 28046, Spain

RECRUITING

MeSH Terms

Interventions

Cell Count

Intervention Hierarchy (Ancestors)

Cytological TechniquesClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisInvestigative TechniquesCell Physiological Phenomena

Central Study Contacts

Antonio Pérez Martínez, PI

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Masking Details
There is no masking in this study
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: This is an exploratory, open-label, non-randomized, multicenter therapeutic study. It is considered phase I/II since it will seek safety and efficacy of the infusion of allogeneic haploidentical Natural Killer (NK) cells in combination with chemotherapy and/or radiotherapy in the treatment of pediatric, adolescent and young adult patients with refractory sarcoma.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Chief of Pediatric Hemato-Oncology and Hematopoietic Transplantation Service

Study Record Dates

First Submitted

July 11, 2023

First Posted

July 19, 2023

Study Start

October 24, 2022

Primary Completion (Estimated)

October 24, 2029

Study Completion (Estimated)

October 24, 2029

Last Updated

July 21, 2023

Record last verified: 2023-07

Data Sharing

IPD Sharing
Will not share

Locations