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Trial · NCT00634270

A Phase II Study of the mTOR Inhibitor Sirolimus in Neurofibromatosis Type 1 Related Plexiform Neurofibromas

NCT00634270, Phase 2, Completed, University of Alabama at Birmingham; results first posted 2017-02-14

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Phase II Study of the mTOR Inhibitor Sirolimus in Neurofibromatosis Type 1 Related Plexiform Neurofibromas. Trials, record NCT00634270. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00634270

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Phase II Study of the mTOR Inhibitor Sirolimus in Neurofibromatosis Type 1 Related Plexiform Neurofibromas
NCT number
NCT00634270
Status
Completed
Phases
Phase 2
Enrollment
58 participants, actual
Lead sponsor
University of Alabama at Birmingham
Conditions
Neurofibromatosis Type 1
Interventions
Sirolimus
First posted
2008-03-13
Last updated
2017-11-17
Results first posted
2017-02-14

Source ClinicalTrials.gov

Registered outcomes15

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryTime to Disease Progression Based on Volumetric MRI24 Months Stratum 1
Median time to progression in Stratum 1 as defined as an increase of at least 20% of the volume of the primary lesion. Note: Since Stratum 2 looked at response rate only, median time to progression was not reviewed for this outcome.
PrimaryResults in Objective Radiographic Responses Based on Volumetric MRI Measurements in Children and Adults With NF1 and Inoperable PN in the Absence of Documented Radiographic Progression at Trial Entry48 weeks Stratum 2Stratum 2 outcome - Response
PrimaryToxicity24 weeks Stratum 1 / 48 weeks Stratum 2Number of participants experiencing adverse events
PrimaryTo Characterize the Pharmacokinetic Profile of Sirolimus Administered to This Patient Population (Clearance Liters/Hour (L/h))Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursAn iterative 2-stage Bayesian method was used for the PK parameter analyses
PrimaryTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population Using Liters/Hour Per Population Median Weight of 70kg (L/h70kg)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursAn iterative 2-stage Bayesian method was used for the PK parameter analyses
PrimaryTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population - (Clearance (L/h Per 1.85 m^2)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursAn iterative 2-stage Bayesian Method was used for the PK parameter analyses
PrimaryTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population- Therapeutic Dose (mg/m^2 Per Dose)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursAn iterative 2-stage Bayesian Method was used for the PK parameter analyses
PrimaryTo Characterize the Pharmacokinetic Profile of Sirolimus in When Administered to This Patient Population - Therapeutic Dose (mg/kg Per Dose)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursAn iterative 2-stage Bayesian Method was used for the PK parameter analyses
PrimaryTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population - Therapeutic Dose (mg/kg)^0.75Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursAn iterative 2-stage Bayesian method was used for the PK parameter analyses
SecondaryTo Evaluate the Quality of Life During Treatment With Sirolimus by Assessing Preliminary Correlations of Response With Quality-of-life Outcomes24 weeks Stratum 1 / 48 weeks Stratum 2
Self-reported, age-appropriate PedsQL Scale. Assessments included: Inventory for physical function, emotional function, social function and school function - number system 0-4 was used with 4 being the worse maximum threshold); inventory for chronic illness used a 5-point likert scale - 5 being the worst maximum threshold; Skindex-Teen used a scale of 0 to 100 - the higher the number the more frequent the experience; Pain intensity was measured using a line with a happy and sad face - marks toward the sad face indicated more intense pain; and, the McGill Pain Questionnaire - higher values indicating worse pain of a scale from 0-3. All assessments were combined for an overall PedsQL score by rating each item 0-4, then reverse transforming each to a 0 - 100 scale. The total scores were calculated by averaging the item scores, with higher scores being better.

Outcomes15

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYTime to Disease Progression Based on Volumetric MRI24 Months Stratum 1All evaluable participants. Note: In Stratum 2 the value was not assessed as time to progression therefore the appropriate response would be N/A. Stratum 2 was reported as response rate only.MonthsMEDIAN
PRIMARYResults in Objective Radiographic Responses Based on Volumetric MRI Measurements in Children and Adults With NF1 and Inoperable PN in the Absence of Documented Radiographic Progression at Trial Entry48 weeks Stratum 2
Identify the index plexiform neurofibroma(s) for 3-D MRI evaluation based on prior imaging studies. The criteria for response was \<20% increase in volume using RECIST v1.0. Response for 48 weeks was only assessed for Stratum 2.
participantsNUMBER
PRIMARYToxicity24 weeks Stratum 1 / 48 weeks Stratum 2All evaluable participants for Stratum 1 and 2 combined.ParticipantsNUMBER
PRIMARYTo Characterize the Pharmacokinetic Profile of Sirolimus Administered to This Patient Population (Clearance Liters/Hour (L/h))Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hours
Pediatric Patients (3 through 18) with Neurofibromatosis Type 1 - Clearance liters/hour (L/h). Stratum 2 did not meet the 6 month response criteria; therefore, was not analyzed for pharmacokinetic profiles.
Clearance liters/hour (L/h)MEAN
PRIMARYTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population Using Liters/Hour Per Population Median Weight of 70kg (L/h70kg)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursStratum 1 used allometrically scaled clearance (clearance scaled to a 70kg individual). Stratum 2 did not meet the 6 month response criteria; therefore, was not analyzed for pharmacokinetic profiles.L/h/70kgMEAN
PRIMARYTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population - (Clearance (L/h Per 1.85 m^2)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursStratum 1, Neurofibromatosis Type 1 Patients Clearance (L/h per 1.85 m\^2). Stratum 2 did not meet the 6 month response criteria; therefore, was not analyzed for pharmacokinetic profiles.L/h per 1.85 m^2MEAN
PRIMARYTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population- Therapeutic Dose (mg/m^2 Per Dose)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hoursStratum 1, Neurofibromatosis Type 1 patients - Therapeutic Dose (mg/m\^2 per dose). Stratum 2 did not meet the 6 month response criteria; therefore, was not analyzed for pharmacokinetic profiles.Therapeutic Dose mg/m^2 per doseMEAN
PRIMARYTo Characterize the Pharmacokinetic Profile of Sirolimus in When Administered to This Patient Population - Therapeutic Dose (mg/kg Per Dose)Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hours
Stratum 1, Neurofibromatosis Type 1 patients (Ages 3 to 18) Therapeutic Dose (mg/kg per dose). Stratum 2 did not meet the 6 month response criteria; therefore, was not analyzed for pharmacokinetic profiles.
Therapeutic Dose (mg/kg per dose)MEAN
PRIMARYTo Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population - Therapeutic Dose (mg/kg)^0.75Pre-dose; Day 1 at 0.5 hours, 1.0 hours, 2.0 hours, 3.0 hours, 4.0 hours, 6.0 hours, 8.0 hours, and 10.0 to 12.0 hours
Stratum 1, Neurofibromatosis Type 1 patients (ages 3 to 18) - Therapeutic Dose (mg/kg)\^0.75. Stratum 2 did not meet the 6 month response criteria; therefore, was not analyzed for pharmacokinetic profiles.
Therapeutic Dose (mg/kg)^0.75MEAN
SECONDARYTo Evaluate the Quality of Life During Treatment With Sirolimus by Assessing Preliminary Correlations of Response With Quality-of-life Outcomes24 weeks Stratum 1 / 48 weeks Stratum 2
Stratum 1 patients with Neurofibromatosis Type 1; all ages - Change from Baseline to Course 3. Stratum 2 did not meet the requirements for response at the 6 month time point. Therefore, Stratum 2 was not analyzed for this aim.
Units on a scaleMEAN

Results by group14

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Time to Disease Progression Based on Volumetric MRIStratum 115.495% Confidence Interval 14.3 to 23.7Months
Results in Objective Radiographic Responses Based on Volumetric MRI Measurements in Children and Adults With NF1 and Inoperable PN in the Absence of Documented Radiographic Progression at Trial EntryStratum 212participants
ToxicityStratum 149Participants
ToxicityStratum 213Participants
To Characterize the Pharmacokinetic Profile of Sirolimus Administered to This Patient Population (Clearance Liters/Hour (L/h))Stratum 111.8Standard Deviation 4.6Clearance liters/hour (L/h)
To Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population Using Liters/Hour Per Population Median Weight of 70kg (L/h70kg)Stratum 123.7Standard Deviation 6.7L/h/70kg
To Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population - (Clearance (L/h Per 1.85 m^2)Stratum 16.4Standard Deviation 2.5L/h per 1.85 m^2
To Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population- Therapeutic Dose (mg/m^2 Per Dose)Stratum 12.0Standard Deviation 0.7Therapeutic Dose mg/m^2 per dose
To Characterize the Pharmacokinetic Profile of Sirolimus in When Administered to This Patient Population - Therapeutic Dose (mg/kg Per Dose)Stratum 10.08Standard Deviation 0.04Therapeutic Dose (mg/kg per dose)
To Characterize the Pharmacokinetic Profile of Sirolimus When Administered to This Patient Population - Therapeutic Dose (mg/kg)^0.75Stratum 10.14Standard Deviation 0.05Therapeutic Dose (mg/kg)^0.75

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDStratum 149
Overall StudySTARTEDStratum 213
Overall StudyCOMPLETEDStratum 146
Overall StudyCOMPLETEDStratum 212
Overall StudyNOT COMPLETEDStratum 13
Overall StudyNOT COMPLETEDStratum 21

Adverse events192

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHeadacheNervous system disordersStratum 12462
otherHeadacheNervous system disordersStratum 21121
otherVomitingGastrointestinal disordersStratum 14464
otherVomitingGastrointestinal disordersStratum 20120
otherLow ANCInvestigationsStratum 11461
otherLow ANCInvestigationsStratum 20120
otherLow WBCInvestigationsStratum 11461
otherLow WBCInvestigationsStratum 20120
otherPain - StomachGastrointestinal disordersStratum 11461
otherPain - StomachGastrointestinal disordersStratum 20120

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityStratum 1
Total, all-cause mortalityStratum 2
Total, other adverse eventsStratum 1846
Total, other adverse eventsStratum 2312
Total, serious adverse eventsStratum 12046
Total, serious adverse eventsStratum 2412

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons3

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Stratum 1 vs Stratum 2: ToxicityTrial comparisons
Stratum 1 vs Stratum 2: To Evaluate the Role of Apolipoprotein E Genotypes as Predictors for Development of Hyperlipidemia During Therapy With Sirolimus.Trial comparisons
Stratum 1 vs Stratum 2: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00634270

GET https://conductscience.org/api/trials/v1/NCT00634270/events?page=2