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Table 3 Characteristics of 11 comparative studies with a non-parallel design

From: Designs used in published therapeutic studies of rare superficial vascular anomalies: a systematic literature search

 

FIRST

AUTHOR

DESIGN

YEAR

POPULATION

INTERVENTION

COMPARISON

PRIMARY OUTCOME

RANDOMIZED

Mükke

Cross-over

[48]

2020

Venous malformation

Adults and children

Physiotherapy

(compression stockings)

No treatment

Change in volume of the malformation measured non-invasively by MRI.

Novartis

Delayed-start

[49]

2020

PROS

Adults and children

Enteral drug

(alpelisib)

Placebo

Change in the target lesion volumes assessed by MRI.

Maruani

Randomized placebo phase

[43]

2019

Lymphatic malformations

Adults and children

Topical drug

(sirolimus)

No treatment

Evaluation of global severity of the lingual microcystic lymphatic malformation using Physical Global Assessment (PGA).

Leducq

Within-person

[71]

2019

Lymphatic malformations

Adults and children

Topical drug

(sirolimus)

Placebo

Evaluation of cutaneous microcystic lymphatic malformation versus topical vehicle using PGA.

Maruani

Randomized placebo phase

[85]

2018

Vascular malformation

Children

Enteral drug

(sirolimus)

No treatment

Change in the volume of the vascular malformation seen on MRI.

Smith

Delayed-start

[103]

2009

Lymphatic malformations

Children

Parenteral drug

(picibanil)

No treatment

Change in volume/size of the malformation evaluated by CT or MRI.

NON-RANDOMIZED

te Loo

Challenge–dechallenge–rechallenge

[74]

2019

Vascular malformation

Adults and children

Enteral drug

(sirolimus)

No treatment

Evaluation of the quality of life measured by TAPQOL, PedsQL and Research and development Rand-36.

Evaluation of the pain using VAS score and NRS score.

Parker

Observational run-in period

[81]

2019

PROS

Adults and children

Enteral drug

(sirolimus)

No treatment

Percent change in unaffected and affected fibrofatty tissue measured by DXA and MRI scan.

Hammer

Cross-overa

[65]

2018

Vascular malformation

Adults and children

Enteral drug

(sirolimus)

Patient’s long term history

(Surgery, interventional radiology etc.)

Physical, functional, biological, radiological and quality of life evaluations.

Weitz-Tuoretmaa

Historical control group

[73]

2017

Venous malformation

Adults and children

Sclerotherapy

(polidocanol)

Sclerotherapy

(ethanol)

Severity evaluation of symptoms by a self-evaluation questionnaire.

James

Historical control group

[66]

2011

Venous malformation

Adults and children

Sclerotherapy

Surgery

Evaluation of lesions dimensions by MRI, surgical parameters, and duration of hospital stay.

  1. a According to the authors, this study is a “crossover trial using patient’s long-term clinical, biological and radiological history before sirolimus treatment as control”
  2. Abbreviations: DXA, dual-energy X-ray absorptiometry; NRS, numerical rating scale; PedsQL, Pediatric Quality of Life Inventory; PROS, PIK3CA-related Overgrowth Spectrum; TAPQOL, TNO-AZL Preschool children Quality of Life; VAS, visual analogue scale