NCT01709968

Brief Summary

Nocturnal leg cramps (NLC) are painful, involuntary contractions of muscles occurring at rest, mostly at night. A Cochrane review on leg cramps in pregnancy showed some potential benefits in trials of magnesium. This is a single center, prospective, randomized, double blind, placebo controlled clinical trial that aims to investigate the effect of treatment with Magnox 520® (un-organic granular magnesium complex, composed of Magnesium Oxide \& Magnesium Oxide Monohydrate 865mg, Provides 520 mg of free elemental Mg++) on frequency and severity of NLC, quality of sleep and quality of life. Hypothesis: Magnox 520® may reduce the number and severity of NLC; an improvement in the quality of life and quality of sleep may ensue.

Trial Health

57
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Trial Health Score

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

Enrollment
94

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Feb 2013

Geographic Reach
1 country

1 active site

Status
terminated

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 17, 2012

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 18, 2012

Completed
4 months until next milestone

Study Start

First participant enrolled

February 1, 2013

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2013

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2014

Completed
Last Updated

July 21, 2017

Status Verified

July 1, 2017

Enrollment Period

8 months

First QC Date

October 17, 2012

Last Update Submit

July 18, 2017

Conditions

Keywords

Nocturnal Leg CrampsQuality of lifeQuality of sleep

Outcome Measures

Primary Outcomes (1)

  • Number of documented episodes of NLC

    The primary efficacy endpoint is the difference in the number of episodes of NLC documented in the NCSD, as compared between the MAGNOX 520® and the placebo treated individuals, during a treatment period of 4 weeks;

    4 weeks

Secondary Outcomes (4)

  • Severity of documented episodes of NLC

    4 weeks

  • Duration of documented episodes of NLC documented

    4 weeks

  • Quality of life

    4 weeks

  • Quality of sleep

    4 weeks

Study Arms (2)

MAGNOX 520®

EXPERIMENTAL

MAGNOX 520® (un-organic granular magnesium complex, composed of Magnesium Oxide \& Magnesium Oxide Monohydrate 865mg, Provides 520 mg of free elemental Mg ++); Oral administration once daily for 4 weeks.

Drug: MAGNOX 520®

Similarly looking placebo.

PLACEBO COMPARATOR

Similarly looking placebo. Oral administration once daily for 4 weeks.

Drug: placebo

Interventions

un-organic granular magnesium complex, composed of Magnesium Oxide \& Magnesium Oxide Monohydrate 865mg, Provides 520 mg of free elemental Mg ++); Oral administration once daily for 4 weeks

MAGNOX 520®

Similarly looking placebo. Oral administration once daily for 4 weeks

Also known as: Similarly looking placebo
Similarly looking placebo.

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Signed informed consent before any procedure or assessment is done. Age over 21 years old. Over 4 episodes of documented NLC during 2 weeks of eligibility screening (for the treatment phase).
  • Insured by Clalit Health Services (CHS). Hebrew speaking

You may not qualify if:

  • Pregnancy Currently taking Quinidine or Magnesium additive Renal failure - serum creatinine more than 2 mg/DL or estimated glomerular filtration rate (eGFR) less than 60 ml/min (the worst, ascertained by the participant electronic records in the last 6 months). If the result is near these limits (i.e. serum creatinin 1.5-2) a second analysis will be done near the study enrollment.
  • Major neurological disease- ALS, MS, Paraplegia or Quadriplegia.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Clinical Research Unit, Clalit Health Services, Haifa and Western Galilee District,

Haifa, Israel

Location

Related Publications (2)

  • Roguin Maor N, Alperin M, Shturman E, Khairaldeen H, Friedman M, Karkabi K, Milman U. Effect of Magnesium Oxide Supplementation on Nocturnal Leg Cramps: A Randomized Clinical Trial. JAMA Intern Med. 2017 May 1;177(5):617-623. doi: 10.1001/jamainternmed.2016.9261.

  • Luo L, Zhou K, Zhang J, Xu L, Yin W. Interventions for leg cramps in pregnancy. Cochrane Database Syst Rev. 2020 Dec 4;12(12):CD010655. doi: 10.1002/14651858.CD010655.pub3.

Related Links

MeSH Terms

Conditions

Sleep-Wake Transition DisordersSleep Initiation and Maintenance Disorders

Condition Hierarchy (Ancestors)

ParasomniasSleep Wake DisordersNervous System DiseasesMental DisordersSleep Disorders, IntrinsicDyssomnias

Study Officials

  • Noga Maor Rougin, MD

    Clinical Research Unit, Clalit Health Services, Haifa and Western Galilee District, HAIFA, ISRAEL

    PRINCIPAL INVESTIGATOR
  • Uzi Milman, MD

    Clinical Research Unit, Clalit Health Services, Haifa and Western Galilee District, HAIFA, ISRAEL

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Director, Clinical Research Unit, Clalit Health Services, Haifa District, HAIFA, ISRAEL

Study Record Dates

First Submitted

October 17, 2012

First Posted

October 18, 2012

Study Start

February 1, 2013

Primary Completion

October 1, 2013

Study Completion

April 1, 2014

Last Updated

July 21, 2017

Record last verified: 2017-07

Locations