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NCT04711135 · OUTCOME

Pharmacokinetics (PK) Parameter: Tmax - Based on Blood Radioactivity Concentration Data

Study to Evaluate Safety and Dosimetry of Lutathera in Adolescent Patients With GEP-NETs and PPGLs · Source last updated 2026-02-12

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
hr
Interval / dispersion
Full Range
Time frame
Up to 72 hours after the first Lutetium [Lu 177] dotatate dose

What was measured

A comparative assessment of PK will be performed between Observed and Predicted adolescent patients with GEP-NETs and PPGLs as a pooled cohort and adult patients using the extrapolation model developed for the clinical study. The observed PK metrics were calculated using non-compartmental analysis (NCA), the predicted PK metrics were derived based on the adolescent population pharmacokinetics (popPK) model.

Analysis population: The PK Analysis Set (PKAS) consisted of all participants who had at least one valid (i.e., not flagged for exclusion) PK measurement. Original NETTER-P protocol intended to conduct separate analyses for the GEP-NET and the PPGL populations. However, the protocol was amended to allow combined analyses for PK across the two patient indications.

Groups in this outcome

GEP-NET and PPGL

All eligible participants with Gastroenteropancreatic neuroendocrine tumor (GEP-NET) and Pheochromocytoma and paraganglioma (PPGL) received at least one dose of Lutathera (7.4 GBq/200 mCi x 4 administrations every 8+/-1 weeks; cumulative dose: 29.6 GBq/800 mCi), with a concomitant administration of 2.5% Lysine - Arginine amino acid solution.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
GEP-NET and PPGL11

Reported measurements

Observed
Values in hr · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
GEP-NET and PPGL0.58Not reported0.50.77Not reported
Predicted
Values in hr · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
GEP-NET and PPGL0.5Not reported0.50.7Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.5
        upper Limit
        0.77
        value
        0.58
    title
    Observed
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.5
        upper Limit
        0.7
        value
        0.5
    title
    Predicted
denoms
  1. counts
    1. group Id
      OG000
      value
      11
    units
    Participants
description
A comparative assessment of PK will be performed between Observed and Predicted adolescent patients with GEP-NETs and PPGLs as a pooled cohort and adult patients using the extrapolation model developed for the clinical study. The observed PK metrics were calculated using non-compartmental analysis (NCA), the predicted PK metrics were derived based on the adolescent population pharmacokinetics (popPK) model.
dispersion Type
Full Range
groups
  1. description
    All eligible participants with Gastroenteropancreatic neuroendocrine tumor (GEP-NET) and Pheochromocytoma and paraganglioma (PPGL) received at least one dose of Lutathera (7.4 GBq/200 mCi x 4 administrations every 8+/-1 weeks; cumulative dose: 29.6 GBq/800 mCi), with a concomitant administration of 2.5% Lysine - Arginine amino acid solution.
    id
    OG000
    title
    GEP-NET and PPGL
param Type
MEDIAN
population Description
The PK Analysis Set (PKAS) consisted of all participants who had at least one valid (i.e., not flagged for exclusion) PK measurement. Original NETTER-P protocol intended to conduct separate analyses for the GEP-NET and the PPGL populations. However, the protocol was amended to allow combined analyses for PK across the two patient indications.
reporting Status
POSTED
time Frame
Up to 72 hours after the first Lutetium [Lu 177] dotatate dose
title
Pharmacokinetics (PK) Parameter: Tmax - Based on Blood Radioactivity Concentration Data
type
SECONDARY
unit Of Measure
hr

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice