NCT00727714

Brief Summary

The aim of the study is to examine possible changes in lung function, nitric oxide levels and systemic inflammatory markers in cement dust exposed workers, during one shift (6-8 hours).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
95

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Apr 2008

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2008

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

July 30, 2008

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 4, 2008

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2009

Completed
7.4 years until next milestone

Results Posted

Study results publicly available

May 20, 2016

Completed
Last Updated

May 20, 2016

Status Verified

April 1, 2016

Enrollment Period

9 months

First QC Date

July 30, 2008

Results QC Date

November 17, 2015

Last Update Submit

April 13, 2016

Conditions

Keywords

Cement dust exposureCross-shift studyLung function indicesExhaled nitric oxideSerum inflammatory markers

Outcome Measures

Primary Outcomes (1)

  • Changes in Lung Function Measurements During One Work Shift (6-8h)

    Changes in lung function measurements during one work shift (6-8h), spirometry and gass diffusion capacity

    baseline and 6-8h

Secondary Outcomes (4)

  • Changes in FeNO Measurements During One Shift (6-8h)

    baseline and 6-8h

  • Changes in Serum/Plasma Inflammatory Markers During One Shift (6-8h)

    Baseline and 6-8h

  • Changes in FeNO Measurements Between Baseline (0h) and 32 h

    0-32h

  • Changes in Serum/Plasma Inflammatory Markers Between Baseline and 32 h

    0-32h

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All employees of two Norwegian cement production plants are invited to participate.

You may qualify if:

  • Employees from a Norwegian cement production plant

You may not qualify if:

  • Exhaled nitric oxide measurements: smokers
  • Substantial previous work in quarry or as a miner

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sykehuset Telemark HF

Skien, N-3710, Norway

Location

Related Publications (8)

  • Abrons HL, Petersen MR, Sanderson WT, Engelberg AL, Harber P. Symptoms, ventilatory function, and environmental exposures in Portland cement workers. Br J Ind Med. 1988 Jun;45(6):368-75. doi: 10.1136/oem.45.6.368.

    PMID: 3260798BACKGROUND
  • Fell AK, Thomassen TR, Kristensen P, Egeland T, Kongerud J. Respiratory symptoms and ventilatory function in workers exposed to portland cement dust. J Occup Environ Med. 2003 Sep;45(9):1008-14. doi: 10.1097/01.jom.0000083036.56116.9d.

    PMID: 14506344BACKGROUND
  • Ali BA, Ballal SG, Albar AA, Ahmed HO. Post-shift changes in pulmonary function in a cement factory in eastern Saudi Arabia. Occup Med (Lond). 1998 Nov;48(8):519-22. doi: 10.1093/occmed/48.8.519.

    PMID: 10024727BACKGROUND
  • Larsson K. Aspects on pathophysiological mechanisms in COPD. J Intern Med. 2007 Sep;262(3):311-40. doi: 10.1111/j.1365-2796.2007.01837.x.

    PMID: 17697154BACKGROUND
  • Raulf-Heimsoth M, Pesch B, Schott K, Kappler M, Preuss R, Marczynski B, Angerer J, Rihs HP, Hahn JU, Merget R, Bruning T. Irritative effects of fumes and aerosols of bitumen on the airways: results of a cross-shift study. Arch Toxicol. 2007 Jan;81(1):35-44. doi: 10.1007/s00204-006-0115-z. Epub 2006 May 19.

    PMID: 16710697BACKGROUND
  • Miller MR, Hankinson J, Brusasco V, Burgos F, Casaburi R, Coates A, Crapo R, Enright P, van der Grinten CP, Gustafsson P, Jensen R, Johnson DC, MacIntyre N, McKay R, Navajas D, Pedersen OF, Pellegrino R, Viegi G, Wanger J; ATS/ERS Task Force. Standardisation of spirometry. Eur Respir J. 2005 Aug;26(2):319-38. doi: 10.1183/09031936.05.00034805. No abstract available.

    PMID: 16055882BACKGROUND
  • Macintyre N, Crapo RO, Viegi G, Johnson DC, van der Grinten CP, Brusasco V, Burgos F, Casaburi R, Coates A, Enright P, Gustafsson P, Hankinson J, Jensen R, McKay R, Miller MR, Navajas D, Pedersen OF, Pellegrino R, Wanger J. Standardisation of the single-breath determination of carbon monoxide uptake in the lung. Eur Respir J. 2005 Oct;26(4):720-35. doi: 10.1183/09031936.05.00034905. No abstract available.

    PMID: 16204605BACKGROUND
  • American Thoracic Society; European Respiratory Society. ATS/ERS recommendations for standardized procedures for the online and offline measurement of exhaled lower respiratory nitric oxide and nasal nitric oxide, 2005. Am J Respir Crit Care Med. 2005 Apr 15;171(8):912-30. doi: 10.1164/rccm.200406-710ST. No abstract available.

    PMID: 15817806BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

Whole blood serum

MeSH Terms

Conditions

Airway Obstruction

Condition Hierarchy (Ancestors)

Respiratory InsufficiencyRespiration DisordersRespiratory Tract Diseases

Results Point of Contact

Title
Dr. Anne Kristin M. Fell, MD, PhD
Organization
Telemark Hospital

Study Officials

  • Johny Kongerud, MD, PhD

    Rikshospitalet University Hospital

    STUDY CHAIR
  • Helge Kjuus, MD, PhD

    National Institute of occupational Health, NIOH

    STUDY CHAIR
  • Marit Skogstad, MD, PhD

    National Institute of occupational Health, NIOH

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior physician, MD, PhD

Study Record Dates

First Submitted

July 30, 2008

First Posted

August 4, 2008

Study Start

April 1, 2008

Primary Completion

January 1, 2009

Study Completion

January 1, 2009

Last Updated

May 20, 2016

Results First Posted

May 20, 2016

Record last verified: 2016-04

Data Sharing

IPD Sharing
Will not share

The individual data is no longer available, due to regulations in Norway requiering individual data to be deleted 5 years after the study was compleeted.

Locations