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Traditional Clomiphene Citrate Administration vs. Stair-step Approach

Traditional Clomiphene Citrate Administration Versus a Stair-Step Approach: A Randomized Controlled Trial

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01008319
Acronym
Clomid
Enrollment
120
Registered
2009-11-05
Start date
2009-10-31
Completion date
2015-11-30
Last updated
2018-01-08

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

Conditions

Anovulation, Ovulation Induction, Ovulatory Dysfunction

Keywords

Anovulation, Ovulation induction

Brief summary

The purpose of this study is to compare the length of time to achieve ovulation and pregnancy with a traditional protocol administration of clomiphene citrate versus a stair step administration. Our hypothesis is by using a stair-step approach in which a period is not induced between administrations of escalating doses of clomiphene citrate, the time to ovulation and pregnancy may be reduced.

Detailed description

The traditional administration of clomiphene citrate for ovulation induction involves taking clomiphene citrate for 5 days. If ovulation does not occur within 14 days, a progestin pill (such as Provera) is prescribed for 10 days to induce a period (which normally occurs within 1 week of stopping the pill). Then a higher dose of clomiphene citrate will be prescribed. The stair-step administration of clomiphene citrate for ovulation induction also involves taking clomiphene citrate for 5 days. In contrast, if ovulation does not occur within 7-9 days, a progestin pill (such as Provera) would NOT be taken to induce a period. The dose of clomiphene will then be increased. Therefore, this would do away with the 10 days of taking the progestin pill, and also do away with waiting for a period (usually 3 to 7 days) for a total of up to a 20 day difference between clomiphene citrate dosing cycles.

Interventions

DRUGclomiphene citrate

Clomiphene citrate 50 mg for 5 days starting on cycle day 5. Transvaginal ultrasound between cycle days 11 to 14 to determine if there is a dominant follicle. If NO dominant follicle present, another ultrasound and blood draw (to test progesterone level) will be done one week later to confirm no response to the medication dose. Medroxyprogesterone acetate (Provera) 10 mg per day for 10 days. Increased dose of clomiphene citrate for 5 days starting on cycle day 5. This process will be repeated at increased doses of clomiphene citrate (100 mg and 150 mg) until a dominant follicle(s) is present.

Sponsors

University of Oklahoma
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Ovulatory dysfunction as evidenced by mid-luteal progesterone less then 3ng/dL, non-biphasic basal body temperature charting, or menstrual history of cycles \> 35 days. * Female patients 18 to 45 years old * Six months or greater of unprotected intercourse without pregnancy. * Normal TSH and prolactin serum levels * Semen analysis of male partner with \> 15 million motile sperm on semen analysis. * NOTE: Must be willing to travel to the Oklahoma City area for treatment.

Exclusion criteria

* Failure to spontaneously menstruate or to menstruate following progestin administration * Allergy or intolerance to the side effects of clomiphene citrate, hCG (human chorionic gonadotropins), or medroxyprogesterone acetate (Provera). * Known anatomical defect affecting the uterine cavity including submucosal fibroids or endometrial polyps. * Know tubal hydrosalpinx or risk factors for tubal obstruction * Known liver dysfunction * Known or suspected androgen secreting tumor, cushings disease, or adrenal hyperplasia (congenital or adult onset) * Ovarian cyst \> 20mm or endometrial lining \>6 mm on trans-vaginal baseline ultrasound. * Stage III or IV endometriosis * Decreased ovarian reserve as evidenced by antral follicle count less than 6 by Transvaginal ultrasound or a cycle-day-3 serum FSH of \> 10 uIU/ml. * Positive HIV in either the female patient or her partner.

Design outcomes

Primary

MeasureTime frameDescription
Time to Ovulation With Each Protocol5 yearsWe hypothesized that time to ovulation would be shorter with stair-step protocol vs. traditional.

Secondary

MeasureTime frameDescription
Rate of Ovulation5 yearsRate of ovulation with each dose of clomid within each protocol
Delivery Outcomes5 yearsProportion of participants that delivered a baby based on which protocol they were randomized to.

Countries

United States

Participant flow

Recruitment details

Recruitment was in the infertility clinic.

Participants by arm

ArmCount
Traditional Administration60
Stair-Step Administration60
Total120

Baseline characteristics

CharacteristicStair-Step AdministrationTotalTraditional Administration
Age, Continuous29.37 years
STANDARD_DEVIATION 3.96
28.65 years
STANDARD_DEVIATION 4.45
27.88 years
STANDARD_DEVIATION 4.95
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants4 Participants4 Participants
Race (NIH/OMB)
Asian
2 Participants6 Participants4 Participants
Race (NIH/OMB)
Black or African American
3 Participants9 Participants6 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
55 Participants101 Participants46 Participants
Sex: Female, Male
Female
60 Participants120 Participants60 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
60 / 6060 / 60
serious
Total, serious adverse events
2 / 603 / 60

Outcome results

Primary

Time to Ovulation With Each Protocol

We hypothesized that time to ovulation would be shorter with stair-step protocol vs. traditional.

Time frame: 5 years

ArmMeasureValue (MEAN)Dispersion
Traditional AdministrationTime to Ovulation With Each Protocol31.1 daysStandard Error 3.5
Stair-Step AdministrationTime to Ovulation With Each Protocol21.5 daysStandard Error 0.9
Secondary

Delivery Outcomes

Proportion of participants that delivered a baby based on which protocol they were randomized to.

Time frame: 5 years

Population: Number of participants randomized to each arm.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Traditional AdministrationDelivery Outcomes21 Participants
Stair-Step AdministrationDelivery Outcomes21 Participants
Secondary

Rate of Ovulation

Rate of ovulation with each dose of clomid within each protocol

Time frame: 5 years

Population: Proportion of subjects that ovulated at each dose of Clomid based on which protocol they were randomized to.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Traditional AdministrationRate of OvulationClomid 50mg45 Participants
Traditional AdministrationRate of OvulationClomid 100mg7 Participants
Traditional AdministrationRate of OvulationClomid 150mg1 Participants
Traditional AdministrationRate of OvulationClomid No Response7 Participants
Stair-Step AdministrationRate of OvulationClomid No Response6 Participants
Stair-Step AdministrationRate of OvulationClomid 50mg26 Participants
Stair-Step AdministrationRate of OvulationClomid 150mg10 Participants
Stair-Step AdministrationRate of OvulationClomid 100mg18 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026