NCT01745263

Brief Summary

The European population is aging rapidly which poses a challenge on the individual, the European societies, and health care systems. Among the most promising public health interventions that may extend healthy life expectancy at older age are vitamin D, marine omega-3 fatty acids and physical exercise. However, their individual and combined effects have yet to be confirmed in a clinical trial. The broad aim of DO-HEALTH is to prolong healthy life expectancy in European seniors. The specific aim is to establish whether vitamin D, omega-3 fatty acids, and a simple home exercise program will prevent disease at older age. To achieve these aims, DO-HEALTH will enroll 2152 community-dwelling men and women who are 70 years and older, an age when chronic diseases increase substantially. The DO-HEALTH seniors will be recruited from 7 European cities (Zurich, Basel, Geneva, Toulouse, Berlin, Innsbruck and Coimbra) and will be randomized in a 2x2x2 factorial design trial to a simple home exercise program and/or vitamin D, and/or omega-3 fatty acids, over a 3 year period. This will allow to test the individual and the combined benefit of the interventions in the prevention of 5 primary endpoints: incident non-vertebral fractures; functional decline; systolic and diastolic blood pressure change; cognitive decline; and the rate of any infection. Key secondary endpoints include incidence of hip fractures, rate of falls, severity of pain in symptomatic knee osteoarthritis, gastro-intestinal symptoms, mental and oral health, quality of life, and mortality. All clinical endpoints will be supported by a large DO-HEALTH biomarker study to evaluate the effect of the interventions at the cellular level of multi-organ function. DO-HEALTH will further evaluate reasons why or why not seniors adhere to the 3 interventions, and will assess their cost-benefit in a health economic model based on documented health care utilization and observed incidence of chronic disease. website DO-HEALTH: http://do-health.eu/wordpress/

Trial Health

93
On Track

Trial Health Score

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

Enrollment
2,157

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Dec 2012

Longer than P75 for phase_3

Geographic Reach
5 countries

7 active sites

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

First Submitted

Initial submission to the registry

December 6, 2012

Completed
4 days until next milestone

First Posted

Study publicly available on registry

December 10, 2012

Completed
10 days until next milestone

Study Start

First participant enrolled

December 20, 2012

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 17, 2017

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 19, 2018

Completed
Last Updated

August 9, 2018

Status Verified

August 1, 2018

Enrollment Period

4.9 years

First QC Date

December 6, 2012

Last Update Submit

August 8, 2018

Conditions

Outcome Measures

Primary Outcomes (5)

  • Bone: Incident non-vertebral fractures over 36 months

    Confirmed by medical and/or x-ray reports

    over 36 months

  • Muscle: Functional decline (lower extremity function)

    Measured with the SPPB (short physical performance test battery)

    Baseline, 12, 24 and 36 months

  • Cardio-vascular: Systolic and diastolic blood pressure change

    Standardized blood pressure assessment in sitting position

    Baseline, 12, 24 and 36 months

  • Brain: Cognitive decline

    Montreal Cognitive Assessment (MoCA)

    Baseline, 12, 24 and 36 months

  • Immunity: Rate of any infections

    3-monthly incident infection protocol

    Baseline, and every 3 months up to 36 months

Secondary Outcomes (28)

  • Bone: Incident hip fractures

    36 months

  • Bone: Incident total fractures

    36 months

  • Bone: Incident vertebral fractures

    36 months

  • Bone: Bone mineral density decrease at the lumbar spine and hip

    Baseline, 12, 24, and 36 months

  • Muscle: Rate of falls

    Assessed every 3 months over 36 months

  • +23 more secondary outcomes

Other Outcomes (9)

  • Biomarker endpoints

    Baseline, 12, 24, and 36 months

  • Bone: Incident repeat fractures

    36 months

  • BONE: Functional recovery after long bone fracture

    36 months

  • +6 more other outcomes

Study Arms (8)

VitD-Omega3-StrengthExercise

ACTIVE COMPARATOR

Vitamin D3 (2000 IU/d); Omega-3 fatty acids (1 g/d); Strength Home Exercise (3\*30 minutes/week)

Drug: Vitamin D3Drug: Omega 3 fatty acidsProcedure: Strength Home Exercise

VitD-Omega3-FlexibilityExercise

ACTIVE COMPARATOR

Vitamin D3 (2000 IU/d); Omega-3 fatty acids (1 g/d); Flexibility Home Exercise (3\*30 minutes/week)

Drug: Vitamin D3Drug: Omega 3 fatty acidsProcedure: Flexibility Home Exercise

Placebo-Omega3-StrengthExercise

ACTIVE COMPARATOR

Placebo Vitamin D3; Omega-3 fatty acids (1 g/d); Strength Home Exercise (3\*30 minutes/week)

Drug: Omega 3 fatty acidsProcedure: Strength Home Exercise

Placebo-Omega3-FlexibilityExercise

ACTIVE COMPARATOR

Placebo Vitamin D3; Omega-3 fatty acids (1 g/d); Flexibility Home Exercise (3\*30 minutes/week)

Drug: Omega 3 fatty acidsProcedure: Flexibility Home Exercise

VitD-Placebo-StrengthExercise

ACTIVE COMPARATOR

Vitamin D3 (2000 IU/d); Placebo Omega-3 fatty acids; Strength Home Exercise (3\*30 minutes/week)

Drug: Vitamin D3Procedure: Strength Home Exercise

VitD-Placebo-FlexiblityExercise

ACTIVE COMPARATOR

Vitamin D3 (2000 IU/d); Placebo Omega-3 fatty acids; Flexibility Home Exercise (3\*30 minutes/week)

Drug: Vitamin D3Procedure: Flexibility Home Exercise

Placebo-Placebo-StrengthExercise

ACTIVE COMPARATOR

Placebo Vitamin D3; Placebo Omega-3 fatty acids; Strength Home Exercise (3\*30 minutes/week)

Procedure: Strength Home Exercise

Placebo-Placebo-FlexibilityExercise

SHAM COMPARATOR

Placebo Vitamin D3; Placebo Omega-3 fatty acids; Flexibility Home Exercise (3\*30 minutes/week)

Procedure: Flexibility Home Exercise

Interventions

2000 IU/d

Also known as: Cholecalciferol
VitD-Omega3-FlexibilityExerciseVitD-Omega3-StrengthExerciseVitD-Placebo-FlexiblityExerciseVitD-Placebo-StrengthExercise

Ratio EPA:DHA = 1:2 1 g/d

Also known as: Eicosapentaenoic acid AND Docosahexaenoic acid
Placebo-Omega3-FlexibilityExercisePlacebo-Omega3-StrengthExerciseVitD-Omega3-FlexibilityExerciseVitD-Omega3-StrengthExercise
Placebo-Omega3-StrengthExercisePlacebo-Placebo-StrengthExerciseVitD-Omega3-StrengthExerciseVitD-Placebo-StrengthExercise
Placebo-Omega3-FlexibilityExercisePlacebo-Placebo-FlexibilityExerciseVitD-Omega3-FlexibilityExerciseVitD-Placebo-FlexiblityExercise

Eligibility Criteria

Age70 Years+
Sexall
Healthy VolunteersYes
Age GroupsOlder Adult (65+)

You may qualify if:

  • Age 70 years or older
  • Mini Mental State Examination Score of at least 24
  • Living in the community
  • Sufficiently mobile to come to the study centre
  • Able to walk 10 meters with or without a walking aid and able to get in and out of a chair without help
  • Able to swallow study capsules
  • Able and willing to participate, sign informed consent (including consent to analyze all samples until drop-out or withdrawal) and cooperate with study procedures

You may not qualify if:

  • Consumption of more than 1000 IU vitamin D/day in the 36 months prior to enrollment, or a bolus of 300'000 IU or more in the last 12 month prior to enrollment, and/ or unwillingness to limit vitamin D intake to the current standard of 800 IU/day of vitamin D during the course of the trial. Provision 1: an individual who consumed an average vitamin D dose between 1000 and 2000 IU vitamin D/day in the 3 months prior to enrollment, may be enrolled after a 3-month wash-out period where the maximum daily intake is limited to 800 IU vitamin D. Provision 2: an individual who consumed an average vitamin D dose higher than 2000 IU/day in the 3 months prior to enrollment, may be enrolled after a 6-month wash-out period where the maximum daily intake is limited to 800 IU vitamin D.
  • Unwillingness to limit calcium supplement dose to 500 mg per day for the duration of the trial
  • Taking omega-3 fat supplements in the 3 month prior to enrolment and unwilling to forgo their use for the duration of the trial
  • Use of any active vitamin D metabolite (i.e. Rocaltrol, alphacalcidiol), PTH treatment (i.e. Teriparatide), or Calcitonin at baseline and unwillingness to forego these treatments during the course of the trial
  • Current or recent (previous 4 months) participation in another clinical trial, or plans of such participation in the next 3 years (corresponding to DO-HEALTH length)
  • Presence of the following diagnosed health conditions in the last 5 years: history of cancer (except non-melanoma skin cancer); myocardial infarction, stroke, transient ischemic attack, angina pectoris, or coronary artery intervention
  • Severe renal impairment (creatinine clearance = 15 ml/min) or dialysis, hypercalcaemia (\> 2.6 mmol/l)
  • Hemiplegia or other severe gait impairment
  • History of hypo- or primary hyperparathyroidism
  • Severe liver disease
  • History of granulomatous diseases (i.e. tuberculosis, sarcoidosis)
  • Major visual or hearing impairment or other serious illness that would preclude participation
  • Living with a partner who is enrolled in DO-HEALTH (i.e. only one person per household can be enrolled)
  • Living in assisted living situations or a nursing home
  • Epilepsy and/or use of anti-epileptic drugs
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

University of Innsbruck

Innsbruck, Austria

Location

University of Toulouse - Centre de Recherche - Gérontopôle Hôpital La Grave

Toulouse, France

Location

Charité Berlin

Berlin, Germany

Location

University of Coimbra - Clínica Universitária de Reumatologia

Coimbra, Portugal

Location

Centre on Aging and Mobility, University of Zurich and City Hospital Waid

Zurich, Canton of Zurich, 8091, Switzerland

Location

Basel University

Basel, Switzerland

Location

Hôpitaux Universitaires de Genève

Geneva, Switzerland

Location

Related Publications (9)

  • Wieczorek M, Funk J, Mattle M, Gangler S, Egli A, Kressig RW, Manz MG, Bischoff-Ferrari HA; DO-HEALTH Research group. Association between hemoglobin levels and mild cognitive impairment in generally healthy European community-dwelling older adults: a 3-year prospective analysis of the DO-HEALTH trial. Am J Clin Nutr. 2025 Nov 13:101114. doi: 10.1016/j.ajcnut.2025.11.005. Online ahead of print.

  • Kistler-Fischbacher M, Gohar G, de Godoi Rezende Costa Molino C, Geiling K, Meyer-Heim T, Kressig RW, Orav EJ, Vellas B, Guyonnet S, da Sliva JAP, Rizzoli R, Armbrecht G, Steinhagen-Thiessen E, Egli A, Bischoff-Ferrari HA. Cognitive function in generally healthy adults age 70 years and older in the 5-country DO-HEALTH study: MMSE and MoCA scores by sex, education and country. Aging Clin Exp Res. 2025 Mar 17;37(1):88. doi: 10.1007/s40520-025-02946-4.

  • de Godoi Rezende Costa Molino C, Forster CK, Wieczorek M, Orav EJ, Kressig RW, Vellas B, Egli A, Freystaetter G, Bischoff-Ferrari HA; DO-HEALTH Research Group. Association of fall risk-increasing drugs with falls in generally healthy older adults: a 3-year prospective observational study of the DO-HEALTH trial. BMC Geriatr. 2024 Nov 29;24(1):980. doi: 10.1186/s12877-024-05557-2.

  • Gaengler S, Sadlon A, De Godoi Rezende Costa Molino C, Willett WC, Manson JE, Vellas B, Steinhagen-Thiessen E, Von Eckardstein A, Ruschitzka F, Rizzoli R, da Silva JAP, Kressig RW, Kanis J, Orav EJ, Egli A, Bischoff-Ferrari HA. Effects of vitamin D, omega-3 and a simple strength exercise programme in cardiovascular disease prevention: The DO-HEALTH randomized controlled trial. J Nutr Health Aging. 2024 Feb;28(2):100037. doi: 10.1016/j.jnha.2024.100037. Epub 2024 Jan 9.

  • Gagesch M, Wieczorek M, Abderhalden LA, Lang W, Freystaetter G, Armbrecht G, Kressig RW, Vellas B, Rizzoli R, Blauth M, Orav EJ, Egli A, Bischoff-Ferrari HA. Grip strength cut-points from the Swiss DO-HEALTH population. Eur Rev Aging Phys Act. 2023 Aug 5;20(1):13. doi: 10.1186/s11556-023-00323-6.

  • Bischoff-Ferrari HA, Willett WC, Manson JE, Dawson-Hughes B, Manz MG, Theiler R, Braendle K, Vellas B, Rizzoli R, Kressig RW, Staehelin HB, Da Silva JAP, Armbrecht G, Egli A, Kanis JA, Orav EJ, Gaengler S. Combined Vitamin D, Omega-3 Fatty Acids, and a Simple Home Exercise Program May Reduce Cancer Risk Among Active Adults Aged 70 and Older: A Randomized Clinical Trial. Front Aging. 2022 Apr 25;3:852643. doi: 10.3389/fragi.2022.852643. eCollection 2022.

  • de Godoi Rezende Costa Molino C, Chocano-Bedoya PO, Sadlon A, Theiler R, Orav JE, Vellas B, Rizzoli R, Kressig RW, Kanis JA, Guyonnet S, Lang W, Egli A, Bischoff-Ferrari HA; DO-HEALTH Research Group. Prevalence of polypharmacy in community-dwelling older adults from seven centres in five European countries: a cross-sectional study of DO-HEALTH. BMJ Open. 2022 Apr 29;12(4):e051881. doi: 10.1136/bmjopen-2021-051881.

  • Schietzel S, Chocano-Bedoya PO, Sadlon A, Gagesch M, Willett WC, Orav EJ, Kressig RW, Vellas B, Rizzoli R, da Silva JAP, Blauth M, Kanis JA, Egli A, Bischoff-Ferrari HA. Prevalence of healthy aging among community dwelling adults age 70 and older from five European countries. BMC Geriatr. 2022 Mar 2;22(1):174. doi: 10.1186/s12877-022-02755-8.

  • Bischoff-Ferrari HA, Vellas B, Rizzoli R, Kressig RW, da Silva JAP, Blauth M, Felson DT, McCloskey EV, Watzl B, Hofbauer LC, Felsenberg D, Willett WC, Dawson-Hughes B, Manson JE, Siebert U, Theiler R, Staehelin HB, de Godoi Rezende Costa Molino C, Chocano-Bedoya PO, Abderhalden LA, Egli A, Kanis JA, Orav EJ; DO-HEALTH Research Group. Effect of Vitamin D Supplementation, Omega-3 Fatty Acid Supplementation, or a Strength-Training Exercise Program on Clinical Outcomes in Older Adults: The DO-HEALTH Randomized Clinical Trial. JAMA. 2020 Nov 10;324(18):1855-1868. doi: 10.1001/jama.2020.16909.

Related Links

MeSH Terms

Interventions

CholecalciferolFatty Acids, Omega-3Eicosapentaenoic AcidDocosahexaenoic Acids

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipidsDietary Fats, UnsaturatedDietary FatsFatsFatty Acids, UnsaturatedFatty AcidsFish OilsOilsEicosanoids

Study Officials

  • Heike Bischoff Ferrari, Prof MD

    "Centre on Aging and Mobility" University of Zurich, University Hospital Zurich and City Hospital Waid.

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director, Centre on Aging and Mobility

Study Record Dates

First Submitted

December 6, 2012

First Posted

December 10, 2012

Study Start

December 20, 2012

Primary Completion

November 17, 2017

Study Completion

January 19, 2018

Last Updated

August 9, 2018

Record last verified: 2018-08

Locations