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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
Scientific title
The Effects of Hormonal Contraceptives on Incidence of ACL Injury Within Menstrual Cycle Phases
Secondary ID [1] 0 0
Buckley_2021
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Anterior Cruciate Ligament Rupture 0 0
Condition category
Condition code
Injuries and Accidents 0 0 0 0
Other injuries and accidents
Musculoskeletal 0 0 0 0
Other muscular and skeletal disorders

Intervention/exposure
Study type
Observational
Patient registry
Target follow-up duration
Target follow-up type
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
Intervention code [1] 0 0
Other interventions
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
ACL Injury Menstrual Cycle Phase by Hormonal Contraceptive Type
Timepoint [1] 0 0
Baseline
Secondary outcome [1] 0 0
ACL Injury Menstrual Cycle Phase by Hormonal Contraceptive Use
Timepoint [1] 0 0
Baseline
Secondary outcome [2] 0 0
ACL Injury Menstrual Cycle Phase Overall
Timepoint [2] 0 0
Baseline

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
Minimum age
18 Years
Maximum age
40 Years
Sex
Females
Can healthy volunteers participate?
No
Key exclusion criteria

Study design
Purpose
Duration
Selection
Timing
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
31/05/2021
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
31/05/2024
Sample size
Target
Accrual to date
Final
98
Recruitment in Australia
Recruitment state(s)
SA
Recruitment hospital [1] 0 0
UniSA Allied Health and Human Performance - Adelaide
Recruitment postcode(s) [1] 0 0
5000 - Adelaide

Funding & Sponsors
Primary sponsor type
Other
Name
University of South Australia
Address
Country

Ethics approval
Ethics application status

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.
Trial website
https://clinicaltrials.gov/study/NCT04986267
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Jon Buckley, PhD
Address 0 0
Country 0 0
Phone 0 0
+61 8 8302 1853
Fax 0 0
Email 0 0
jon.buckley@unisa.edu.au
Contact person for scientific queries