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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT04986267
Registration number
NCT04986267
Ethics application status
Date submitted
6/07/2021
Date registered
2/08/2021
Date last updated
18/06/2024
Titles & IDs
Public title
The Effects of Hormonal Contraceptives on Incidence of ACL Injury Within Menstrual Cycle Phases
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Scientific title
The Effects of Hormonal Contraceptives on Incidence of ACL Injury Within Menstrual Cycle Phases
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Secondary ID [1]
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Buckley_2021
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Anterior Cruciate Ligament Rupture
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Condition category
Condition code
Injuries and Accidents
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Other injuries and accidents
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Musculoskeletal
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0
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Other muscular and skeletal disorders
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Other interventions - ACL Rupture
ACL Rupture - Female, aged 18-40 years of age with an acute ACL rupture of the knee that occurred within the last 3 months, who presented to a sports or orthopaedic clinic
Other interventions: ACL Rupture
Female, aged 18-40 years of age with an acute ACL rupture of the knee that occurred within the last 3 months, who presented to a sports or orthopaedic clinic
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Intervention code [1]
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Other interventions
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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ACL Injury Menstrual Cycle Phase by Hormonal Contraceptive Type
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Assessment method [1]
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In which phase of the menstrual cycle did the ACL injury occur, by hormonal contraceptive type (including non-use reference)
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Timepoint [1]
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Baseline
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Secondary outcome [1]
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ACL Injury Menstrual Cycle Phase by Hormonal Contraceptive Use
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Assessment method [1]
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In which phase of the menstrual cycle did the ACL injury occur, by hormonal contraceptive use vs. non-use
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Timepoint [1]
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Baseline
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Secondary outcome [2]
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ACL Injury Menstrual Cycle Phase Overall
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Assessment method [2]
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In which phase of the menstrual cycle did the ACL injury occur (pooled group)
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Timepoint [2]
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Baseline
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Eligibility
Key inclusion criteria
* Presenting to a sports or orthopaedic clinic with an acute ACL rupture of their knee that occurred within the last 3 months
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Minimum age
18
Years
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Maximum age
40
Years
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Sex
Females
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Can healthy volunteers participate?
No
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Key exclusion criteria
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Study design
Purpose
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Duration
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Selection
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Timing
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
31/05/2021
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
31/05/2024
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Sample size
Target
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Accrual to date
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Final
98
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Recruitment in Australia
Recruitment state(s)
SA
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Recruitment hospital [1]
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UniSA Allied Health and Human Performance - Adelaide
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Recruitment postcode(s) [1]
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5000 - Adelaide
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of South Australia
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
The aim of this study is to investigate how hormonal contraceptives affect ACL rupture incidence within menstrual cycle phases. It is thought hormones such as estrogen and progesterone (which fluctuate throughout the normal menstrual cycle) play a role in the laxity of ligaments within the body. It is hypothesised that around the time of ovulation the ACL undergoes increased laxity, leaving it more likely to be injured. This study will look at the phase of the menstrual cycle in which the ACL injuries occur and whether there are differences due to the use and type of hormonal contraception participants may be using (such as Combined oral contraceptive, Mirena, Implanon), which can modify the levels of circulating estrogen and progesterone.
This study involves participants completing an anonymous electronic survey after presenting to a sports or orthopaedic clinic with an ACL rupture. The survey collects information about participant's current ACL injury and any previous knee injuries; typical menstrual cycle patterns and the use of hormonal contraception; and history of sports participation. Responses will be analysed to look for similarities and differences in ACL injury occurrence by menstrual cycle phase and hormonal contraceptive use.
The study hypotheses are:
1. Hormonal contraceptives that are known to reduce ovulatory rises in estrogen will have the most consistent pattern of ACL rupture incidence across all phases of the menstrual cycle.
2. There will be a mitigated risk of ACL rupture in the preovulatory phase of the menstrual cycle, relative to the other phases, in women using hormonal contraception compared to those not using hormonal contraception
3. There will be a higher proportion of ACL ruptures during the preovulatory phase of the menstrual cycle in non-hormonal contraceptive users.
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Trial website
https://clinicaltrials.gov/study/NCT04986267
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Jon Buckley, PhD
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Address
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Country
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Phone
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+61 8 8302 1853
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/study/NCT04986267
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