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NT-I7 for Kaposi Sarcoma in Patients With or Without HIV

Phase 1 Study of NT-I7 (rhIL-7-hyFc) for the Treatment of Kaposi Sarcoma in Patients With or Without Infection With HIV

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04893018
Enrollment
8
Registered
2021-05-19
Start date
2022-05-23
Completion date
2023-12-15
Last updated
2024-06-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

AIDS-Related Kaposi Sarcoma, HIV Infection, Kaposi Sarcoma

Brief summary

This phase I trial studies the best dose and effects of NT-I7 in treating Kaposi sarcoma in patients with or without HIV. NT-I7 works by using a patient's immune system to fight cancer. It is made in a laboratory and is used to boost, direct, or restore the body's natural defenses against cancer. NT-I7 may work better in treating Kaposi sarcoma.

Detailed description

OUTLINE: This is a dose-escalation study. Patients receive efineptakin alfa intramuscularly (IM) on day 1. Cycles repeat every 9 weeks for up to 4 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up on day 30 (+/- 7 days) and then every 12 weeks for 12 months.

Interventions

Given IM

Sponsors

Cancer Immunotherapy Trials Network (CITN)
CollaboratorUNKNOWN
National Cancer Institute (NCI)
CollaboratorNIH
Fred Hutchinson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have histologically confirmed Kaposi sarcoma * Patients must have evaluable disease. Note: Kaposi sarcoma will be evaluated using a modified version (consistent with National Cancer Institute \[NCI\] studies) of the Acquired Immunodeficiency Syndrome (AIDS) Clinical Trial Group (ACTG) Oncology Committee staging and response definitions for KS * No upper or lower limit on the number of prior therapies or stage of disease * HIV-positive patients must have been on effective anti-retroviral (ART) therapy for at least 3 months prior to enrollment, with persistent KS affecting quality of life due to either T1 disease or T0 disease with inadequate disease regression on ART alone * HIV-positive patients must have undetectable HIV viral loads =\< 40 copies/mL measured using a Food and Drug Administration (FDA)-approved commercial assay with lower limit of detection between =\< 20 copies/mL and =\< 40 copies/mL * Patients with visceral involvement must: * Meet other eligibility criteria * Have any/all associated tumor associated symptoms =\< grade 2 by Common Terminology Criteria for Adverse Events (CTCAE) criteria; and/or * Require no immediate intervention (e.g. mild oozing of oral KS not an

Exclusion criteria

) * Patients must provide newly obtained core, punch, or excisional biopsy of a tumor lesion obtained up to 28 days prior to treatment initiation. An archival tumor sample obtained within 1 year of screening is allowed if pre treatment biopsy is deemed unsafe or technically not feasible * Patients must be \>= 18 years of age on day of signing informed consent document. Because no dosing or adverse event data are currently available on the use of NT-I7 in patients \< 18 years of age, children are excluded from this study but will be eligible for future pediatric trials * Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 (Karnofsky \>= 60%) * Leukocytes \>= 2,500/mcL * Absolute neutrophil count \>= 1,000/mcL * Platelets \>= 100,000/mcL * Hemoglobin \>= 9/dL * Total bilirubin =\< 1.5 institutional upper limit of normal (ULN) OR \< 3 x institutional ULN for Gilbert's syndrome or HIV protease inhibitors * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\]) / alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase \[SGPT\]) =\< 2.5 x institutional ULN * Creatinine =\< 2 x institutional ULN OR creatinine clearance \>= 60 mL/min/1.73 m\^2 by Cockcroft-Gault. At the discretion of the treating physician, a 24-hour urine creatinine clearance could be obtained and utilized as the gold standard if creatinine clearance by Cockcroft-Gault is \< 30 and prevents patient enrollment on the trial * Patients with chronic hepatitis B virus (HBV) infection must be on suppressive antiviral therapy * Patients with a history of hepatitis C virus (HCV) infection must have an undetectable HCV viral load due to prior treatment or natural resolution * Female patients of childbearing potential must have a negative urine or serum pregnancy test within 72 hours before receiving the first dose of the study agent. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required * The effects of NT-I7 on the developing human fetus are unknown. For this reason and because NT-I7 may have an adverse effect on pregnancy and poses risk to the human fetus, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 90 days after the last dose of study treatment. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and for 90 days after completion of NT-I7 administration * Ability to understand and the willingness to sign a written informed consent document

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Adverse EventsUp to 30 days after last dose of NT-I7, approximately 31 weeks totalMeasured by Common Terminology Criteria for Adverse Events version 5.0.

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR).12 monthsDefined as the proportion of participants who achieved Complete Response (CR) or Partial Response (PR) according to modified Acquired Immunodeficiency Syndrome (AIDS) Clinical Trials Group Criteria (ACTG) criteria.
Duration of Response (DOR)Up to 1 yearMeasured in participants who obtain a partial response or better and defined as time from the best response within the first 36 weeks of therapy until disease progression or censoring. Kaplan Meier survival estimates constructed for each of these survival endpoints with 95% confidence intervals (CIs), for up to 1 year following initiation of treatment in all participants.
Progression-free Survival (PFS)Assessed up to 1 yearDefined as the time from administration of the first dose of NT-I7 until disease progression or death or censoring. Kaplan Meier survival estimates will be constructed for each of these survival endpoints with 95% CIs, for up to 1 year following initiation of treatment in all participants.
Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in BloodFrom pre-administration to each time point following first administration (1, 4, and 9 weeks)For analysis of circulating lymphocytes, we will describe fold-change (median and range) in blood ALC. Fold change from baseline is defined as the ratio of the value at the visit to that at baseline.
Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.From pre-administration to each time point following first administration (1, 4, and 9 weeks)Described by fold-change (median and range) in blood CD4+ T cells. Fold change from baseline is defined as the ratio of the value at the visit to that at baseline.
Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.From pre-administration to each time point following first administration (1, 4, and 9 weeks)Described by fold-change (median and range) in blood CD8+ T cells. Fold change from baseline is defined as the ratio of the value at the visit to that at baseline.
Overall Survival (OS)Assessed up to 1 year following initiation of treatmentFrom administration of the first dose of NT-I7 until death or censoring. Kaplan Meier survival estimates will be constructed for each of these survival endpoints with 95% CIs.

Other

MeasureTime frameDescription
Immunogenicity of NT-I7Up to 12 months after last dose of NT-I7The proportion of participants developing neutralizing antibodies will be summarized.

Countries

United States

Participant flow

Participants by arm

ArmCount
NT-I7 (Efineptakin Alfa) Dose Level 1
Participants receive 480 µg/kg NT-I7 (Efineptakin alfa) IM on day 1. Cycles repeat every 9 weeks for up to 4 cycles in the absence of disease progression or unacceptable toxicity. NT-I7 (Efineptakin alfa): Given IM
6
NT-I7 (Efineptakin Alfa) Dose Level 2
Participants receive 960 µg/kg NT-I7 (Efineptakin alfa) IM on day 1. Cycles repeat every 9 weeks for up to 4 cycles in the absence of disease progression or unacceptable toxicity. NT-I7 (Efineptakin alfa): Given IM
2
Total8

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10
Overall StudyStudy Terminated12
Overall StudyWithdrawal by Subject20

Baseline characteristics

CharacteristicNT-I7 (Efineptakin Alfa) Dose Level 1NT-I7 (Efineptakin Alfa) Dose Level 2Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants0 Participants1 Participants
Age, Categorical
Between 18 and 65 years
5 Participants2 Participants7 Participants
Age, Continuous57.2 years
STANDARD_DEVIATION 7.2
37.0 years
STANDARD_DEVIATION 5.7
52.1 years
STANDARD_DEVIATION 11.3
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants2 Participants7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants1 Participants
Race (NIH/OMB)
White
5 Participants1 Participants6 Participants
Region of Enrollment
United States
6 participants2 participants8 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
6 Participants2 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 2
other
Total, other adverse events
6 / 62 / 2
serious
Total, serious adverse events
1 / 61 / 2

Outcome results

Primary

Percentage of Participants With Adverse Events

Measured by Common Terminology Criteria for Adverse Events version 5.0.

Time frame: Up to 30 days after last dose of NT-I7, approximately 31 weeks total

Population: Analysis is conducted on all enrolled participants who received at least one dose of NT-I7.

ArmMeasureValue (NUMBER)
NT-I7 (Efineptakin Alfa) Dose Level 1Percentage of Participants With Adverse Events100 percentage of participants
NT-I7 (Efineptakin Alfa) Dose Level 2Percentage of Participants With Adverse Events100 percentage of participants
Secondary

Duration of Response (DOR)

Measured in participants who obtain a partial response or better and defined as time from the best response within the first 36 weeks of therapy until disease progression or censoring. Kaplan Meier survival estimates constructed for each of these survival endpoints with 95% confidence intervals (CIs), for up to 1 year following initiation of treatment in all participants.

Time frame: Up to 1 year

Population: Analysis is conducted on all enrolled participants who received at least one dose of NT-I7 and provided at least one post-baseline response assessment, and did not discontinue study treatment prior to the first protocol-specified timepoint for evaluation of response to therapy.

ArmMeasureValue (MEDIAN)
NT-I7 (Efineptakin Alfa) Dose Level 1Duration of Response (DOR)NA months
NT-I7 (Efineptakin Alfa) Dose Level 2Duration of Response (DOR)NA months
Secondary

Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in Blood

For analysis of circulating lymphocytes, we will describe fold-change (median and range) in blood ALC. Fold change from baseline is defined as the ratio of the value at the visit to that at baseline.

Time frame: From pre-administration to each time point following first administration (1, 4, and 9 weeks)

Population: Analysis is conducted on all enrolled participants who received at least one dose of NT-I7 and provided at least one post-baseline response assessment, and did not discontinue study treatment prior to the first protocol-specified timepoint for evaluation of response to therapy.

ArmMeasureGroupValue (MEDIAN)
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in BloodWeek 11.06 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in BloodWeek 43.20 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in BloodWeek 93.01 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in BloodWeek 11.15 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in BloodWeek 43.93 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of Absolute Lymphocyte Counts (ALC) in BloodWeek 93.24 No units, median and IQR of ratios
Secondary

Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.

Described by fold-change (median and range) in blood CD4+ T cells. Fold change from baseline is defined as the ratio of the value at the visit to that at baseline.

Time frame: From pre-administration to each time point following first administration (1, 4, and 9 weeks)

Population: Analysis is conducted on all enrolled participants who received at least one dose of NT-I7 and provided at least one post-baseline response assessment, and did not discontinue study treatment prior to the first protocol-specified timepoint for evaluation of response to therapy.

ArmMeasureGroupValue (MEDIAN)
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.Week 11.26 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.Week 44.46 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.Week 93.26 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.Week 94.45 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.Week 11.19 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of CD4+ T Cells in Blood.Week 46.30 No units, median and IQR of ratios
Secondary

Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.

Described by fold-change (median and range) in blood CD8+ T cells. Fold change from baseline is defined as the ratio of the value at the visit to that at baseline.

Time frame: From pre-administration to each time point following first administration (1, 4, and 9 weeks)

Population: Analysis is conducted on all enrolled participants who received at least one dose of NT-I7 and provided at least one post-baseline response assessment, and did not discontinue study treatment prior to the first protocol-specified timepoint for evaluation of response to therapy.

ArmMeasureGroupValue (MEDIAN)
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.Week 43.25 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.Week 92.53 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 1Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.Week 10.89 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.Week 44.12 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.Week 11.29 No units, median and IQR of ratios
NT-I7 (Efineptakin Alfa) Dose Level 2Effect of NT-I7 on Kinetics of CD8+ T Cells in Blood.Week 93.28 No units, median and IQR of ratios
Secondary

Objective Response Rate (ORR).

Defined as the proportion of participants who achieved Complete Response (CR) or Partial Response (PR) according to modified Acquired Immunodeficiency Syndrome (AIDS) Clinical Trials Group Criteria (ACTG) criteria.

Time frame: 12 months

Population: Analysis is conducted on all enrolled participants who received at least one dose of NT-I7 and provided at least one post-baseline response assessment, and did not discontinue study treatment prior to the first protocol-specified timepoint for evaluation of response to therapy.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
NT-I7 (Efineptakin Alfa) Dose Level 1Objective Response Rate (ORR).Objective Response Rate (CR+PR)1 Participants
NT-I7 (Efineptakin Alfa) Dose Level 1Objective Response Rate (ORR).Complete Response (CR)0 Participants
NT-I7 (Efineptakin Alfa) Dose Level 1Objective Response Rate (ORR).Partial Response (PR)1 Participants
NT-I7 (Efineptakin Alfa) Dose Level 2Objective Response Rate (ORR).Partial Response (PR)2 Participants
NT-I7 (Efineptakin Alfa) Dose Level 2Objective Response Rate (ORR).Objective Response Rate (CR+PR)2 Participants
NT-I7 (Efineptakin Alfa) Dose Level 2Objective Response Rate (ORR).Complete Response (CR)0 Participants
Secondary

Overall Survival (OS)

From administration of the first dose of NT-I7 until death or censoring. Kaplan Meier survival estimates will be constructed for each of these survival endpoints with 95% CIs.

Time frame: Assessed up to 1 year following initiation of treatment

Population: Analysis is conducted on all enrolled and treated participants.

ArmMeasureValue (MEDIAN)
NT-I7 (Efineptakin Alfa) Dose Level 1Overall Survival (OS)NA months
NT-I7 (Efineptakin Alfa) Dose Level 2Overall Survival (OS)NA months
Secondary

Progression-free Survival (PFS)

Defined as the time from administration of the first dose of NT-I7 until disease progression or death or censoring. Kaplan Meier survival estimates will be constructed for each of these survival endpoints with 95% CIs, for up to 1 year following initiation of treatment in all participants.

Time frame: Assessed up to 1 year

Population: Analysis is conducted on all enrolled participants who received at least one dose of NT-I7 and provided at least one post-baseline response assessment, and did not discontinue study treatment prior to the first protocol-specified timepoint for evaluation of response to therapy.

ArmMeasureValue (MEDIAN)
NT-I7 (Efineptakin Alfa) Dose Level 1Progression-free Survival (PFS)NA months
NT-I7 (Efineptakin Alfa) Dose Level 2Progression-free Survival (PFS)NA months
Other Pre-specified

Immunogenicity of NT-I7

The proportion of participants developing neutralizing antibodies will be summarized.

Time frame: Up to 12 months after last dose of NT-I7

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026