Evidence map›Paper›PMID 29780263›Full record

ArticleClinical medicine insights. Arthritis and musculoskeletal disorders2018

A Pooled Analysis of Two Multicenter, Randomized Controlled Trials of a Single Intra-articular Injection of Gel-200 for Treatment of Osteoarthritis of the Knee.

Junko Takamura, Takayuki Seo, Vibeke Strand

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Clinical medicine insights. Arthritis and musculoskeletal disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00449696 phase3completednot on this map

A Multi-Center, Randomized, Double-Blind, Controlled, Parallel-Group Study of a Single Intra-Articular Injection of Gel-200 With a Single Intra-Articular Injection of Phosphate Buffered Saline (PBS) in Osteoarthritis of the Knee.

TypeinterventionalSponsorSeikagaku CorporationRan2006 to 2007Enrolled379ConditionsOsteoarthritis of the KneeArmsGel-200, Placebo
NCT00450112 phase3completednot on this map

A Multi-Center Extension and Open-Label Study of a Single or Repeat Intra-Articular Injection of Gel-200 in Osteoarthritis of the Knee.

TypeinterventionalSponsorSeikagaku CorporationRan2007 to 2009Enrolled202ConditionsOsteoarthritis of the KneeArmsGel-200
3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

Junko TakamuraR&D Planning Department, Research & Development Division, Seikagaku Corporation, Tokyo, Japan.
Takayuki SeoClinical Development Department, Research & Development Division, Seikagaku Corporation, Tokyo, Japan.
Vibeke StrandDivision of Immunology and Rheumatology, Stanford University School of Medicine, Palo Alto, CA, USA.
Seikagaku Corporation (Japan) · JPStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveTo perform an integrated analysis of 2 randomized controlled trials (RCTs) to assess the efficacy and safety of a single intra-articular injection of Gel-200 compared with phosphate buffered saline (PBS) for treatment of osteoarthritis of the knee.

methodsData from the intention-to-treat (ITT) populations of both RCTs were pooled for this integrated analysis. Mean changes from baseline in Western Ontario and McMaster Universities Arthritis Index (WOMAC) pain subscores were assessed using a longitudinal model; treatment differences were compared between intra-articular Gel-200 and PBS injections. Analyses included secondary outcome measures repeated at individual time points. The safety populations of both RCTs were pooled for an integrated safety analysis to compare adverse events (AEs).

resultsThe pooled ITT population included 1184 subjects (649 Gel-200; 535 PBS); demographic characteristics were similar between treatment groups. Mean improvements in pain subscores from baseline to week 12 were -24.7 mm in Gel-200 and -21.8 mm in PBS groups, a statistically significant treatment group difference of -2.9 mm (

conclusionThis integrated analysis demonstrated the efficacy of a single intra-articular injection of Gel-200 compared with PBS for treatment of osteoarthritis of the knee over 26 weeks without major safety concerns.

trial registrationNCT00449696 and NCT00450112.

Indexed as

cross-linked HAGel-200intra-articularkneeOsteoarthritis

Identifiers

PMID29780263
PMCPMC5952279
OpenAlexW2799589388

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.