A randomised controlled trial comparing the provision of twelve months versus four months supply of the combined oral contraceptive pill on continuation rates at twelve months after initiation

A randomised controlled trial comparing the provision of twelve months versus four months supply of the combined oral contraceptive pill on continuation rates at twelve months after initiation.

Status

Terminated

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12608000141347

Enrollment

144

Registered

2008-03-19

Start date

2008-02-28

Completion date

2009-06-23

Last updated

2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The primary purpose of the study is to determine whether women prescibed a twelve month supply rather than the usual four month supply of the combined oral contraceptive pill at initiation of this contraceptive method are more likley to continue this method when followed-up by phone or e-mail twelve months later. The study will also look at womens' preferences for each initiation regimen through administration of a questionnaire. The hypothesis is that women are more likley to continue the contraceptive pill if they are prescribed the longer initiation regimen and will have a preference for this regimen over the shorter four month regimen.

Interventions

Prescription of a 12-month combined oral contraceptive pill supply at initiation of this contraceptive method - the prescription may be for any of the Therapeutic Goods Administration (TGA) approved combined contraceptive pills available on the australian market. All pills are given in a once daily dosage. Type of pill prescribed will be recorded.

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Prevention

Masking

Open (masking not used)

Eligibility

Sex/Gender

All

Age

18 Years to 40 Years

Healthy volunteers

Yes

Inclusion criteria

Women aged 18-40 years who choose this method of contraception and are eligible according to standard World Health Organisation (WHO) criteria to use the combined oral contraceptive pill; have not used it in the past 2 years; are not intending to become pregnant in the next 12-months.

Exclusion criteria

Ineligible for the combined contraceptive pill; outside age criteria; do not consent to randomisation; require an interpreter.

Outcome results