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Opioid Analgesia for MAB

Opioid Analgesia for MAB: A Randomized Controlled Trial

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03139240
Enrollment
172
Registered
2017-05-03
Start date
2017-05-01
Completion date
2018-05-31
Last updated
2019-08-28

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

Conditions

MAB, Pain

Brief summary

Our primary objective will be to determine if a strong opioid, oxycodone, given at a dose recommended for severe pain in addition to ibuprofen decreases maximum pain scores compared to ibuprofen and placebo in women undergoing medical abortion (MAB). Results of this study will help future providers understand whether prescribing opioids are an important adjunct for pain control in women undergoing MAB.

Detailed description

This study will include 152 women undergoing MAB. Women will be randomized to oxycodone 10mg oral versus placebo and stratified by gestational age (\<7wks, 7-10wks). The primary outcome will be maximum reported pain score measured at 6-8 hours and 24 hours after misoprostol administration.

Interventions

DRUGOxycodone 10mg oral

Oxycodone 10mg oral given for pain control in addition to standard of care medications in women undergoing medical abortion

OTHERPlacebo

Placebo given in addition to standard of care medications in women undergoing medical abortion

Sponsors

Society of Family Planning
CollaboratorOTHER
Oregon Health and Science University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Double Blind

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Aged 18 years or older * Seeking elective medical abortion * In good health * Pregnancy with intrauterine gestational sac up to 10 0/7 weeks, dated by ultrasound * Able and willing to receive text messages via phone * Literate in English * Able and willing to give informed consent and agree to the study terms * Have assistance at home; no motor vehicle use while taking study medications

Exclusion criteria

* Lack of access to cell phone and texting capabilities * Early pregnancy failure * Contraindications to the study medications: Oxycodone, Ibuprofen * Contraindications to medical abortion with Mifepristone or Misoprostol * History of methadone or heroin use * Used alcohol in the past 24 hours * Used marijuana \>4 times per week * Any opioid in the past 30 days * Using additional pain medications

Design outcomes

Primary

MeasureTime frameDescription
Overall Maximum Self-reported Pain Score24 hours after misoprostol administrationWomen text responses through two surveys within 24 hours after misoprostol administration indicating their maximum self-reported pain score on an 11-point Numeric Pain Rating Scale (0 = no pain, 5 = moderate pain, and 10 = worst possible pain).
<7 Weeks of Gestation - Maximum Self-reported Pain Score24 hours after misoprostol administrationWomen text responses through two surveys within 24 hours after misoprostol administration indicating their maximum self-reported pain score on an 11-point Numeric Pain Rating Scale (0 = no pain, 5 = moderate pain, and 10 = worst possible pain).
7-10 Weeks Gestation - Maximum Self-reported Pain Score24 hours after misoprostol administrationWomen text responses through two surveys within 24 hours after misoprostol administration indicating their maximum self-reported pain score on an 11-point Numeric Pain Rating Scale (0 = no pain, 5 = moderate pain, and 10 = worst possible pain).

Countries

United States

Participant flow

Participants by arm

ArmCount
Oxycodone: <7 Weeks Gestational Age
Oxycodone 10mg oral: Oxycodone 10mg oral given for pain control in addition to standard of care medications in women undergoing medical abortion Women with a gestational age \<7 weeks randomized to oxycodone 10mg oral
48
Placebo: <7 Weeks Gestational Age
Placebo: Placebo given in addition to standard of care medications in women undergoing medical abortion Women with a gestational age \<7 weeks randomized to placebo
48
Oxycodone: 7-10w0d Weeks Gestational Age
Oxycodone 10mg oral: Oxycodone 10mg oral given for pain control in addition to standard of care medications in women undergoing medical abortion Women with a gestational age 7-10w0d randomized to oxycodone 10mg oral
38
Placebo: 7-10w0d Weeks Gestational Age
Placebo: Placebo given in addition to standard of care medications in women undergoing medical abortion Women with a gestational age 7-10w0d randomized to placebo
38
Total172

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyLost to Follow-up0110

Baseline characteristics

CharacteristicOxycodone: <7 Weeks Gestational AgePlacebo: <7 Weeks Gestational AgeOxycodone: 7-10w0d Weeks Gestational AgePlacebo: 7-10w0d Weeks Gestational AgeTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
48 Participants48 Participants38 Participants38 Participants172 Participants
Race/Ethnicity, Customized
Other
21 Participants21 Participants13 Participants24 Participants79 Participants
Race/Ethnicity, Customized
White/Non-Hispanic
27 Participants27 Participants25 Participants14 Participants93 Participants
Region of Enrollment
United States
48 participants48 participants38 participants38 participants172 participants
Sex: Female, Male
Female
48 Participants48 Participants38 Participants38 Participants172 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 860 / 86
other
Total, other adverse events
4 / 862 / 86
serious
Total, serious adverse events
0 / 860 / 86

Outcome results

Primary

7-10 Weeks Gestation - Maximum Self-reported Pain Score

Women text responses through two surveys within 24 hours after misoprostol administration indicating their maximum self-reported pain score on an 11-point Numeric Pain Rating Scale (0 = no pain, 5 = moderate pain, and 10 = worst possible pain).

Time frame: 24 hours after misoprostol administration

Population: Participants at 7-10w0d of Gestation were assessed. Participants who were lost to follow-up were excluded from this analysis.

ArmMeasureValue (MEDIAN)
Oxycodone Arm7-10 Weeks Gestation - Maximum Self-reported Pain Score9 units on a scale
Placebo Arm7-10 Weeks Gestation - Maximum Self-reported Pain Score8 units on a scale
Primary

<7 Weeks of Gestation - Maximum Self-reported Pain Score

Women text responses through two surveys within 24 hours after misoprostol administration indicating their maximum self-reported pain score on an 11-point Numeric Pain Rating Scale (0 = no pain, 5 = moderate pain, and 10 = worst possible pain).

Time frame: 24 hours after misoprostol administration

Population: Participants at \<7 weeks of Gestation were assessed. Participants who were lost to follow-up were excluded from this analysis.

ArmMeasureValue (MEDIAN)
Oxycodone Arm<7 Weeks of Gestation - Maximum Self-reported Pain Score8 units on a scale
Placebo Arm<7 Weeks of Gestation - Maximum Self-reported Pain Score8 units on a scale
Primary

Overall Maximum Self-reported Pain Score

Women text responses through two surveys within 24 hours after misoprostol administration indicating their maximum self-reported pain score on an 11-point Numeric Pain Rating Scale (0 = no pain, 5 = moderate pain, and 10 = worst possible pain).

Time frame: 24 hours after misoprostol administration

ArmMeasureValue (MEDIAN)
Oxycodone ArmOverall Maximum Self-reported Pain Score8 units on a scale
Placebo ArmOverall Maximum Self-reported Pain Score8 units on a scale

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026