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Trial · NCT02335242

Sildenafil for the Treatment of Lymphatic Malformations

NCT02335242, Phase 2, Completed, Stanford University; results first posted 2022-11-17

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Sildenafil for the Treatment of Lymphatic Malformations. Trials, record NCT02335242. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02335242

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Trial

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

Title
Sildenafil for the Treatment of Lymphatic Malformations
NCT number
NCT02335242
Status
Completed
Phases
Phase 2
Enrollment
22 participants, actual
Lead sponsor
Stanford University
Conditions
Lymphatic Malformations, Lymphatic Diseases
Interventions
Sildenafil 20 mg tablets, Placebo tablets (resembling Revatio)
First posted
2015-01-09
Last updated
2022-11-17
Results first posted
2022-11-17
Limitations and caveats
Only 1 of 4 planned sites participated in this trial; the study did not meet its planned enrollment and the results are underpowered.

Source ClinicalTrials.gov

Registered outcomes2

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

ListOutcomeTime frameDescription
PrimaryChange in Lesion Volume of the Test Medication as Evaluated by MRI Examination.Baseline, week 20Participants will be followed for the duration of the study, an expected average of 20 weeks.
SecondaryChange in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreBaseline, week 20
Subject's evaluation of the overall change in lymphatic malformation. Participants will be followed from baseline to 20 weeks. Patients rated change as no improvement, minimal improvement (1-25% change), fair improvement (25-50% change), good improvement (50-75% change), and excellent improvement (75-100% change).

Outcomes2

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChange in Lesion Volume of the Test Medication as Evaluated by MRI Examination.Baseline, week 20Participants who completed each treatment period are included in the analysispercentage of volumeMEAN
SECONDARYChange in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreBaseline, week 20Participants with data at both baseline and week 20 are included in the analysisParticipantsCOUNT_OF_PARTICIPANTS

Results by group13

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

OutcomeGroupCategoryValueSpreadUnits
Change in Lesion Volume of the Test Medication as Evaluated by MRI Examination.Double-Blind Placebo5.89Standard Deviation 13.5percentage of volume
Change in Lesion Volume of the Test Medication as Evaluated by MRI Examination.Open-Label Sildenafil-8.54Standard Deviation 12.1percentage of volume
Change in Lesion Volume of the Test Medication as Evaluated by MRI Examination.Double-blind Sildenafil-0.642Standard Deviation 18.3percentage of volume
Change in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreDouble-Blind PlaceboNo improvement1Participants
Change in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreDouble-Blind SildenafilNo improvement2Participants
Change in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreDouble-Blind PlaceboMinimal improvement2Participants
Change in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreDouble-Blind SildenafilMinimal improvement4Participants
Change in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreDouble-Blind PlaceboFair improvement0Participants
Change in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreDouble-Blind SildenafilFair improvement1Participants
Change in Subject's Assessment of Change in Lymphatic Malformation Overall ScoreDouble-Blind PlaceboGood improvement2Participants

Participant flow18

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

PeriodMilestoneGroupParticipantsUnits counted
Randomized Phase (20 Weeks)STARTEDDouble-Blind Placebo Then Open-Label Sildenafil8
Randomized Phase (20 Weeks)STARTEDDouble-Blind Sildenafil11
Randomized Phase (20 Weeks)COMPLETEDDouble-Blind Placebo Then Open-Label Sildenafil7
Randomized Phase (20 Weeks)COMPLETEDDouble-Blind Sildenafil11
Randomized Phase (20 Weeks)NOT COMPLETEDDouble-Blind Placebo Then Open-Label Sildenafil1
Randomized Phase (20 Weeks)NOT COMPLETEDDouble-Blind Sildenafil0
Open-label Phase (20 Weeks)STARTEDDouble-Blind Placebo Then Open-Label Sildenafil6
Open-label Phase (20 Weeks)STARTEDDouble-Blind Sildenafil0
Open-label Phase (20 Weeks)COMPLETEDDouble-Blind Placebo Then Open-Label Sildenafil6
Open-label Phase (20 Weeks)COMPLETEDDouble-Blind Sildenafil0

Adverse events39

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherColdRespiratory, thoracic and mediastinal disordersDouble-Blind Placebo78
otherColdRespiratory, thoracic and mediastinal disordersOpen-Label Sildenafil26
otherColdRespiratory, thoracic and mediastinal disordersDouble-Blind Sildenafil610
otherCoughRespiratory, thoracic and mediastinal disordersDouble-Blind Placebo18
otherCoughRespiratory, thoracic and mediastinal disordersOpen-Label Sildenafil26
otherCoughRespiratory, thoracic and mediastinal disordersDouble-Blind Sildenafil310
otherRhinorrheaRespiratory, thoracic and mediastinal disordersDouble-Blind Placebo18
otherRhinorrheaRespiratory, thoracic and mediastinal disordersOpen-Label Sildenafil26
otherRhinorrheaRespiratory, thoracic and mediastinal disordersDouble-Blind Sildenafil110
otherAbdominal pain/bloatingGastrointestinal disordersDouble-Blind Placebo08

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDouble-Blind Placebo08
Total, all-cause mortalityOpen-Label Sildenafil06
Total, all-cause mortalityDouble-Blind Sildenafil010
Total, other adverse eventsDouble-Blind Placebo88
Total, other adverse eventsOpen-Label Sildenafil56
Total, other adverse eventsDouble-Blind Sildenafil1010
Total, serious adverse eventsDouble-Blind Placebo08
Total, serious adverse eventsOpen-Label Sildenafil06
Total, serious adverse eventsDouble-Blind Sildenafil010

Papers19

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
1268059BACKGROUNDPubMed
8801294BACKGROUNDPubMed
10475547BACKGROUNDPubMed
10908271BACKGROUNDPubMed
11956051BACKGROUNDPubMed
14527714BACKGROUNDPubMed
15823634BACKGROUNDPubMed
15849783BACKGROUNDPubMed
18519970BACKGROUNDPubMed
18550886BACKGROUNDPubMed

1 to 10 of 19

See all 19 papers

Grants1

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.

ProjectTitlePrincipal investigatorsOrganizationFunderFiscal years
R01FD004372Phase 2 Study of Sildenafil for the Treatment of Lymphatic MalformationsTENG, JOYCE MING CAO; BRUCKNER, ANNA LEE; MANCINI, ANTHONY JSTANFORD UNIVERSITYFOOD AND DRUG ADMINISTRATION2014 to 2019

Trial comparisons0

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

None in this release.

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/NCT02335242

GET https://conductscience.org/api/trials/v1/NCT02335242/events?page=2