NCT03376490

Brief Summary

Vitamin B12 deficiency can cause severe problems with the blood, nerves, brain and psychological well-being. Ironically, our modern methods for the control of diabetes mellitus can actually contribute to vitamin B12 deficiency. This is because the diabetic medication "metformin", low-cholesterol diets lacking in meats (a natural source of vitamin B12) and the use of powerful anti-gastric medication can all reduce the natural absorption of vitamin B12 from the diet, especially in elderly people with diabetes. There is both a high prevalence of vitamin B12 deficiencies and falls among the elderly with type 2 diabetes mellitus and the investigators hypothesize that B12 deficiency contributes directly and significantly to falls in elderly diabetics through impaired muscle strength, gait and balance. This study therefore proposes to investigate the association between vitamin B12 deficiency and fall risk among diabetic elderly patients (older than 65 years) in the polyclinic setting by assessing muscle strength, balance and walking speed. The predictors of vitamin B12, folate, homocysteine and vitamin D levels will also be explored in this study. If the hypothesis is right, this would be of public health importance \& can lead to further studies that can change the way we treat diabetes by reducing falls in our elderly diabetics through the screening for, prevention and treatment of B12 deficiency.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
56

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2012

Typical duration 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

January 1, 2012

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2014

Completed
3.3 years until next milestone

First Submitted

Initial submission to the registry

December 6, 2017

Completed
12 days until next milestone

First Posted

Study publicly available on registry

December 18, 2017

Completed
Last Updated

December 19, 2017

Status Verified

December 1, 2017

Enrollment Period

2.7 years

First QC Date

December 6, 2017

Last Update Submit

December 15, 2017

Conditions

Outcome Measures

Primary Outcomes (2)

  • Muscle strength (Hand-grip)

    Hand-grip strength in kg force as measured by the JAMAR dynamometer .

    At recruitment

  • Muscle strength (Leg extension)

    Leg strength in kg force as measured by a leg dynamometer.

    At recruitment

Secondary Outcomes (12)

  • Falls

    At recruitment

  • Gait speed

    At recruitment

  • Gait speed

    At recruitment

  • Gait speed

    At recruitment

  • Balance

    At recruitment

  • +7 more secondary outcomes

Eligibility Criteria

Age65 Years+
Sexall(Gender-based eligibility)
Gender Eligibility Detailsstratified sampling to ensure equal number of men and women in the study. So 23 men and 23 women recruited in total.
Healthy VolunteersNo
Age GroupsOlder Adult (65+)
Sampling MethodProbability Sample
Study Population

Community-living elderly patients \> 65 years of age receiving primary care from the polyclinic for the treatment of type 2 diabetes mellitus for at least a year.

You may qualify if:

  • All Diabetic Adults \> 65 years old who have been on follow-up at the Polyclinic for \> 1 year; with Informed Consent.

You may not qualify if:

  • Patients not fitting the Eligibility Criteria
  • Inability to walk despite assistive devices because of musculoskeletal disorders \&/or
  • Acute or Terminal Illness \&/or
  • Documented severe Disorders of the central nervous system (e.g. major stroke, Parkinson disease, dementia \& severe visual impairment) however a subject with a previous history of stroke could be included provided he/she had recovered with no cognitive impairment or other residual effects that would affect the study results.
  • Inability to understand spoken questions \&/or commands
  • Failure to give or withdrawal of Informed Consent
  • Patients not fitting the Eligibility Criteria
  • Patients who are part of the Family Physician Clinic (FPC), thus avoiding conflict of interest.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

SingHealth Polyclinics - Marine Parade Polyclinic

Singapore, 440080, Singapore

Location

Related Publications (16)

  • Ministry of Social and Family Development. National survey of senior citizens, 2005. Available at: https://www.msf.gov.sg/publications/Pages/National-Survey-on-Senior-Citizens-in-Singapore-2005.aspx. Accessed on 12 Dec 2017

    BACKGROUND
  • Koh WP, Wang R, Ang LW, Heng D, Yuan JM, Yu MC. Diabetes and risk of hip fracture in the Singapore Chinese Health Study. Diabetes Care. 2010 Aug;33(8):1766-70. doi: 10.2337/dc10-0067. Epub 2010 May 26.

    PMID: 20504896BACKGROUND
  • Foo CL, Chan KC, Goh HK, Seow E. Profiling acute presenting symptoms of geriatric patients attending an urban hospital emergency department. Ann Acad Med Singap. 2009 Jun;38(6):515-6.

    PMID: 19565102BACKGROUND
  • Clarke R, Refsum H, Birks J, Evans JG, Johnston C, Sherliker P, Ueland PM, Schneede J, McPartlin J, Nexo E, Scott JM. Screening for vitamin B-12 and folate deficiency in older persons. Am J Clin Nutr. 2003 May;77(5):1241-7. doi: 10.1093/ajcn/77.5.1241.

    PMID: 12716678BACKGROUND
  • Skrabal F. Syncope, falls and cobalamin deficiency in the old population. Clin Auton Res. 2004 Apr;14(2):60-6. doi: 10.1007/s10286-004-0179-x. No abstract available.

    PMID: 15095046BACKGROUND
  • Martin HJ, Yule V, Syddall HE, Dennison EM, Cooper C, Aihie Sayer A. Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry. Gerontology. 2006;52(3):154-9. doi: 10.1159/000091824.

    PMID: 16645295BACKGROUND
  • Sallinen J, Stenholm S, Rantanen T, Heliovaara M, Sainio P, Koskinen S. Hand-grip strength cut points to screen older persons at risk for mobility limitation. J Am Geriatr Soc. 2010 Sep;58(9):1721-6. doi: 10.1111/j.1532-5415.2010.03035.x.

    PMID: 20863331BACKGROUND
  • de Jager J, Kooy A, Lehert P, Wulffele MG, van der Kolk J, Bets D, Verburg J, Donker AJ, Stehouwer CD. Long term treatment with metformin in patients with type 2 diabetes and risk of vitamin B-12 deficiency: randomised placebo controlled trial. BMJ. 2010 May 20;340:c2181. doi: 10.1136/bmj.c2181.

    PMID: 20488910BACKGROUND
  • Lin MR, Hwang HF, Hu MH, Wu HD, Wang YW, Huang FC. Psychometric comparisons of the timed up and go, one-leg stand, functional reach, and Tinetti balance measures in community-dwelling older people. J Am Geriatr Soc. 2004 Aug;52(8):1343-8. doi: 10.1111/j.1532-5415.2004.52366.x.

    PMID: 15271124BACKGROUND
  • Holick MF. Vitamin D deficiency. N Engl J Med. 2007 Jul 19;357(3):266-81. doi: 10.1056/NEJMra070553. No abstract available.

    PMID: 17634462BACKGROUND
  • Pflipsen MC, Oh RC, Saguil A, Seehusen DA, Seaquist D, Topolski R. The prevalence of vitamin B(12) deficiency in patients with type 2 diabetes: a cross-sectional study. J Am Board Fam Med. 2009 Sep-Oct;22(5):528-34. doi: 10.3122/jabfm.2009.05.090044.

    PMID: 19734399BACKGROUND
  • Lord SR, Menz HB, Tiedemann A. A physiological profile approach to falls risk assessment and prevention. Phys Ther. 2003 Mar;83(3):237-52.

    PMID: 12620088BACKGROUND
  • Ng TP, Niti M, Chiam PC, Kua EH. Physical and cognitive domains of the Instrumental Activities of Daily Living: validation in a multiethnic population of Asian older adults. J Gerontol A Biol Sci Med Sci. 2006 Jul;61(7):726-35. doi: 10.1093/gerona/61.7.726.

    PMID: 16870636BACKGROUND
  • Ministry of Health S. National Health Survey, 2010. Available at: https://www.moh.gov.sg/content/moh_web/home/Publications/Reports/2011/national_health_survey2010.html. Accessed 10 Sep 2017.

    BACKGROUND
  • Toh E. The Straits Times. Seniors Resilient but Many Don't Exercise http://www.healthxchange.com.sg/News/Pages/Seniors-Resilient-but-Many-Dont-Exercise.aspx Accessed 24 April 2016.

    BACKGROUND
  • Wee AK. Serum folate predicts muscle strength: a pilot cross-sectional study of the association between serum vitamin levels and muscle strength and gait measures in patients >65 years old with diabetes mellitus in a primary care setting. Nutr J. 2016 Oct 18;15(1):89. doi: 10.1186/s12937-016-0208-3.

MeSH Terms

Conditions

Vitamin B 12 DeficiencyFolic Acid DeficiencyVitamin D DeficiencyHyperhomocysteinemia

Condition Hierarchy (Ancestors)

Vitamin B DeficiencyAvitaminosisDeficiency DiseasesMalnutritionNutrition DisordersNutritional and Metabolic DiseasesAmino Acid Metabolism, Inborn ErrorsMetabolism, Inborn ErrorsGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesMalabsorption SyndromesMetabolic Diseases

Study Officials

  • ANDREW KH WEE, MCI

    SingHealth Polyclinics

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
ECOLOGIC OR COMMUNITY
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Family Physician

Study Record Dates

First Submitted

December 6, 2017

First Posted

December 18, 2017

Study Start

January 1, 2012

Primary Completion

August 31, 2014

Study Completion

August 31, 2014

Last Updated

December 19, 2017

Record last verified: 2017-12

Locations