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Trial ยท NCT01362244

Mepolizumab in Nasal Polyposis

NCT01362244, Phase 2, Completed, GlaxoSmithKline; results first posted 2016-03-28

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Mepolizumab in Nasal Polyposis. Trials, record NCT01362244. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01362244

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Trial

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

Title
Mepolizumab in Nasal Polyposis
NCT number
NCT01362244
Status
Completed
Phases
Phase 2
Enrollment
109 participants, actual
Lead sponsor
GlaxoSmithKline
Conditions
Nasal Polyps
Interventions
Mepolizumab, Placebo, Run In Medication
First posted
2011-05-30
Last updated
2021-04-12
Other registries' IDs
eudract:2008-003772-21
Results first posted
2016-03-28
Limitations and caveats
Part B was removed due to the low numbers of participants enrolling into Part B. GSK determined it was no longer feasible to achieve a meaningful number of participants and therefore recruitment into this portion of the study was stopped.

Source ClinicalTrials.gov

Registered outcomes39

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

ListOutcomeTime frameDescription
PrimaryNumber of Participants With a Reduced Need for Surgery at Week 25Week 25
Assessment of the nasal polyposis condition was performed after six months of dosing to determine the situation indicative of a reduction in the need for surgery. The components used to determine the need for surgery were endoscopic polyp (ENP) scores and a severity of condition as measured by a visual analogue scale (VAS). Surgery was still deemed required for a participant with an ENP score of \>=3, or an ENP score of 2 and a VAS symptom score of \>7. The number of participants with reduced need for polyp surgery are presented as missing data set to non-responders (NR) and missing data last observation carry forward (LOCF). LOCF is defined as missing responses at Week 25 imputed with the last non-missing post-dose observation for that participant.
SecondaryNumber of Participants With Endoscopic Nasal Polyp (ENP) Score Dynamics at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Weeks 1, 2, 5, 9, 13, 17, 21, and 25
Each nostril was assessed for polyps and graded at Weeks 1, 2, 5, 9, 13, 17, 21, and 25. The right and left nostrils were scored from 0 to 4, where, 0 = No polyps; 1 = Small polyps in the middle meatus not reaching below the inferior border of the middle concha; 2 = Polyps reaching below the lower border of the middle turbinate; 3 = Large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle concha; and 4 = Large polyps causing complete obstruction/congestion of the inferior meatus. The ENP score was recorded for both the right and the left nostril. The higher of the two scores was derived and used for the analysis. The ENP score ranges from 0 to 4, with a higher score indicating a larger polyp.
SecondaryNumber of Participants Who Required Polyp Surgery at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Weeks 1, 2, 5, 9, 13, 17, 21, and 25
Assessment of the nasal polyposis condition was performed after 6 months of dosing to determine the situation indicative of a reduction in the need for surgery. The components used to determine the need for surgery were endoscopic polyp scores and a severity of condition as measured by a VAS. Surgery was required for participants with ENP scores of \>=3, or ENP scores of 2 and a VAS symptom score of \>7.
SecondaryMean Change From Baseline in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) at Weeks 2, 5, 9, 13, 17, 21, and 25Baseline and Weeks 2, 5, 9, 13, 17, 21, and 25
SBP and DBP were measured at Baseline (Week 1) and at Weeks 2, 5, 9, 13, 17, 21, and 25. Baseline is defined as the Week 1 pre-dose assessment. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
SecondaryMean Change From Baseline in Pulse Rate at Weeks 2, 5, 9, 13, 17, 21, and 25Baseline and Weeks 2, 5, 9, 13, 17, 21, and 25
Pulse rate was measured at Baseline (Week 1) and at Weeks 2, 5, 9, 13, 17, 21, and 25. Baseline is defined as the Week 1 pre-dose assessment. Change from Baseline is defined as the difference between the post-dose post-Baseline visit value and the Baseline value.
SecondaryNumber of Participants With the Indicated Electrocardiogram (ECG) Findings at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Weeks 1, 2, 5, 9, 13, 17, 21, and 25
A single safety 12-lead ECG was performed using a standard 12-lead ECG machine at Weeks 1, 2, 5, 9, 13, 17, 21, and 25. Any abnormal clinically significant (CS) and not clinically significant (NCS) findings were identified. ECG abnormaility with respect to CS and NCS findings were judged by the investigator or appropriately qualified designee. Clinically significant abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition.
SecondaryAbsolute Values of Clinical Chemistry Parameters Including Blood Urea Nitrogen (BUN), Glucose Fasting, Chloride, Sodium, Potassium, Carbon Dioxide, and Calcium at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)
BUN, glucose fasting, chloride, sodium, potassium, carbon dioxide (CO2), and calcium were assessed at Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose).
Secondary
Absolute Values of the Clinical Chemistry Parameters of Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Alkaline Phosphatase (ALP), and Gamma Glutamyltransferase (GGT) at Weeks 1, 2, 5, 9, 13, 17, 21, and 25
Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)ALT, AST, ALP, and GGT were assessed at Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose).
SecondaryAbsolute Values of the Clinical Chemistry Parameters of Albumin and Protein at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)Albumin and protein were assessed at Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose).
SecondaryAbsolute Values of the Clinical Chemistry Parameters of Total and Direct Bilirubin, Creatinine (CRT), and Uric Acid (UA) at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)
Total bilirubin (TB) and direct bilirubin (DB), creatinine, and uric acid were assessed at Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose).

Outcomes39

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With a Reduced Need for Surgery at Week 25Week 25Per Protocol Population: all randomized participants who received at least one dose of study treatment and who complied with the protocol.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Endoscopic Nasal Polyp (ENP) Score Dynamics at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Weeks 1, 2, 5, 9, 13, 17, 21, and 25PP Population. Only those participants available at the specified time points (represented by n=X, X) were analyzed.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants Who Required Polyp Surgery at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Weeks 1, 2, 5, 9, 13, 17, 21, and 25PP PopulationParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYMean Change From Baseline in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) at Weeks 2, 5, 9, 13, 17, 21, and 25Baseline and Weeks 2, 5, 9, 13, 17, 21, and 25
Safety Population: participants who received \>=1 dose of study treatment (based on actual treatment received). One participant randomized to mepolizumab took placebo in error. Thus, N for the placebo arm of the SP is greater than for the ITT Population. Participants available at the specified time points (represented by n=X, X) were analyzed.
millimeters of mercury (mmHg)MEAN
SECONDARYMean Change From Baseline in Pulse Rate at Weeks 2, 5, 9, 13, 17, 21, and 25Baseline and Weeks 2, 5, 9, 13, 17, 21, and 25
Safety Population. One participant randomized to mepolizumab took placebo in error. Thus, N for the placebo arm of the SP is greater than for the ITT Population. Only those participants available at the specified time points (represented by n=X, X) were analyzed.
beats per minuteMEAN
SECONDARYNumber of Participants With the Indicated Electrocardiogram (ECG) Findings at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Weeks 1, 2, 5, 9, 13, 17, 21, and 25
Safety Population. One participant randomized to mepolizumab took placebo in error. Thus, N for the placebo arm of the SP is greater than for the ITT Population. Only those participants available at the specified time points (represented by n=X, X) were analyzed.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYAbsolute Values of Clinical Chemistry Parameters Including Blood Urea Nitrogen (BUN), Glucose Fasting, Chloride, Sodium, Potassium, Carbon Dioxide, and Calcium at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)
Safety Population. One participant randomized to mepolizumab took placebo in error. Thus, N for the placebo arm of the SP is greater than for the ITT Population. Only those participants available at the specified time points (represented by n=X, X) were analyzed.
Millimoles per liter (mmol/L)MEAN
SECONDARY
Absolute Values of the Clinical Chemistry Parameters of Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Alkaline Phosphatase (ALP), and Gamma Glutamyltransferase (GGT) at Weeks 1, 2, 5, 9, 13, 17, 21, and 25
Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)
Safety Population. One participant randomized to mepolizumab took placebo in error. Thus, N for the placebo arm of the SP is greater than for the ITT Population. Only those participants available at the specified time points (represented by n=X, X) were analyzed.
International units per liter (IU/L)MEAN
SECONDARYAbsolute Values of the Clinical Chemistry Parameters of Albumin and Protein at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)
Safety Population. One participant randomized to mepolizumab took placebo in error. Thus, N for the placebo arm of the SP is greater than for the ITT Population. Only those participants available at the specified time points (represented by n=X, X) were analyzed.
Grams per liter (g/L)MEAN
SECONDARYAbsolute Values of the Clinical Chemistry Parameters of Total and Direct Bilirubin, Creatinine (CRT), and Uric Acid (UA) at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Week 1 pre-dose, Week 2, Week 5 pre-dose, Week 9 pre-dose, Week 13 pre-dose, Week 17 pre-dose, Week 21 pre-dose, and Week 25 (4 Weeks post last dose)
Safety Population. One participant randomized to mepolizumab took placebo in error. Thus, N for the placebo arm of the SP is greater than for the ITT Population. Only those participants available at the specified time points (represented by n=X, X) were analyzed.
Micromoles per literMEAN

Results by group872

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

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With a Reduced Need for Surgery at Week 25Mepolizumab 750 mgNR, Responders16Participants
Number of Participants With a Reduced Need for Surgery at Week 25PlaceboNR, Responders5Participants
Number of Participants With a Reduced Need for Surgery at Week 25Mepolizumab 750 mgNR, Non-Responders33Participants
Number of Participants With a Reduced Need for Surgery at Week 25PlaceboNR, Non-Responders46Participants
Number of Participants With a Reduced Need for Surgery at Week 25Mepolizumab 750 mgLOCF, Responders17Participants
Number of Participants With a Reduced Need for Surgery at Week 25PlaceboLOCF, Responders8Participants
Number of Participants With a Reduced Need for Surgery at Week 25Mepolizumab 750 mgLOCF, Non- Responders32Participants
Number of Participants With a Reduced Need for Surgery at Week 25PlaceboLOCF, Non- Responders43Participants
Number of Participants With Endoscopic Nasal Polyp (ENP) Score Dynamics at Weeks 1, 2, 5, 9, 13, 17, 21, and 25Mepolizumab 750 mgWeek 1, ENP score 0, n=49, 510Participants
Number of Participants With Endoscopic Nasal Polyp (ENP) Score Dynamics at Weeks 1, 2, 5, 9, 13, 17, 21, and 25PlaceboWeek 1, ENP score 0, n=49, 510Participants

Participant flow6

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDMepolizumab 750 mg54
Overall StudySTARTEDPlacebo51
Overall StudyCOMPLETEDMepolizumab 750 mg22
Overall StudyCOMPLETEDPlacebo19
Overall StudyNOT COMPLETEDMepolizumab 750 mg32
Overall StudyNOT COMPLETEDPlacebo32

Adverse events38

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherEar painEar and labyrinth disordersMepolizumab 750 mg153
otherEar painEar and labyrinth disordersPlacebo652
otherNauseaGastrointestinal disordersMepolizumab 750 mg253
otherNauseaGastrointestinal disordersPlacebo452
otherFatigueGeneral disordersMepolizumab 750 mg153
otherFatigueGeneral disordersPlacebo552
otherInfluenzaInfections and infestationsMepolizumab 750 mg453
otherInfluenzaInfections and infestationsPlacebo252
otherNasopharyngitisInfections and infestationsMepolizumab 750 mg1053
otherNasopharyngitisInfections and infestationsPlacebo1452

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityMepolizumab 750 mg053
Total, all-cause mortalityPlacebo052
Total, other adverse eventsMepolizumab 750 mg3253
Total, other adverse eventsPlacebo3852
Total, serious adverse eventsMepolizumab 750 mg053
Total, serious adverse eventsPlacebo052

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
28687232BACKGROUNDPubMed
33710614DERIVEDPubMed

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 comparisons2

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

ComparisonSource
Mepolizumab 750 mg vs Placebo: deaths from any causeTrial comparisons
Mepolizumab 750 mg vs Placebo: 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/NCT01362244

GET https://conductscience.org/api/trials/v1/NCT01362244/registered?page=2