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Bone; Disorder, Development and GrowthPhase 4NCT02367833

Effects of Oral vs. Non-oral Contraceptives on the GH/IGF-1 Axis

A Phase 4 study testing Combined Oral Contraceptive, Transdermal Contraceptive and Contraceptive Vaginal Ring in people with Bone; Disorder, Development and Growth, run by Penn State University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will determine whether the negative effects of combined oral contraceptive (COC) therapy on the growth hormone/insulin-like growth factor-1 (GH/IGF-1) axis and bone turnover are dependent on the route of administration such that an attenuation of these effects is observed when a comparable dose of non-oral… Read more about this study

Who is it for?
Ages 18 to 30 years, women onlyHealthy volunteers can take part
Conditions the study is for
Bone; Disorder, Development and Growth
What is being tested?
Combined Oral Contraceptive, Transdermal Contraceptive and Contraceptive Vaginal Ring
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteUnited States
Study dates
Jan 2015to Dec 2018
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 30 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Female
  • Age 18-30 yrs
  • BMI 18-29 kg/m2
  • Non-smoking
  • Not using hormonal contraceptives for at least 6 months prior
  • Not currently pregnant nor intending to become pregnant in the next 6 months
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  • Not lactating
  • No apparent metabolic, endocrine, musculoskeletal, or severe psychiatric disease
  • Willing to adhere to maintenance of current exercise training and diet and remain weight stable (±2 kg) during study
  • Variable physical activity acceptable, but mode must be primarily weight bearing
  • At least 9 menses in past 12 months
  • Willing to quit taking any current nutritional supplements and take Calcium and Vitamin D supplements for the duration of the study.
  • If 21 or older, a normal Pap smear must be confirmed.

Who cannot join

  • Non-weight bearing exercise as primary mode of physical activity
  • Known or suspected metabolic or endocrine disease
  • Pregnant
  • Currently consuming large amounts of soy products
  • Regular consumption of grapefruit juice
  • Current clinical eating disorder or other axis 1 psychiatric or bipolar disorders
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  • Oral or hormonal contraceptive use in the last 6 months
  • Currently amenorrheic
  • Hyperparathyroidism
  • Liver or renal disease
  • Evidence of malabsorption or skeletal disorder
  • Thyroid abnormalities (controlled hypothyroidism acceptable)
  • Chronic use of non-steroidal anti-inflammatory drugs (NSAIDS)
  • Taking medications known to have interactions with contraceptive therapy
  • Division I Athlete, on or off season
  • Other Exclusion Criteria proposed by the World Health Organization COC Contraindications (Grossman, 2011)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Women's Health and Exercise Laboratories, The Pennsylvania State University

    University Park, Pennsylvania, 16802

Other trials in United States

About this study

Official title: Primary Mechanisms Underlying the Effects of Oral vs. Non-oral Contraceptives on the GH/IGF-1 Axis and Bone Metabolism in Young Women

This study will determine whether the negative effects of combined oral contraceptive (COC) therapy on the growth hormone/insulin-like growth factor-1 (GH/IGF-1) axis and bone turnover are dependent on the route of administration such that an attenuation of these effects is observed when a comparable dose of non-oral transdermal contraceptive (TDC) and contraceptive vaginal ring therapy (CVR) are also tested.

Read the detailed description

This study is a preclinical, multi-site trial (Penn State University and Purdue University) that will determine whether the negative effects of combined oral contraceptive (COC) therapy on bone turnover are dependent on the route of administration such that an attenuation of these effects is observed when a comparable dose of non-oral transdermal contraceptive (TDC) therapy and contraceptive vaginal ring (CVR) therapy are also tested. Millions of women use COC therapy for birth control purposes or regulation of menstrual cycles. TDC and CVR therapies are relatively new FDA-approved contraceptive alternatives to COC. The purpose of the proposed project is to address the potential mechanism(s) by which oral ethinyl estradiol (EE) may negatively impair bone via "first pass" effects on the liver and compare these effects to transdermally-administered and vaginally-administered EE in young women. We will assess mechanistic effects by way of 2-day serial sampling and by an insulin-like growth factor (IGF-1) generation test. The IGF-1 generation test was developed over 20 years ago and is currently used to diagnose growth hormone (GH) insensitivity. IGF-1 generation tests may also be used to amplify effects not observable by the assessment of fasting or serial concentrations of systemic IGF-1(secreted by the liver) and its associated binding proteins. This study will be the first study to examine the physiological mechanisms whereby the route of estrogen administration affects the GH/IGF-1 axis and bone turnover in young women.

The overall purpose of this study is to explore differences in liver metabolism and bone turnover of oral versus transdermal and vaginal contraceptive therapy. In an effort to expose the route-dependent effects of oral versus transdermal and vaginal contraceptive therapy on liver and bone metabolism, we will examine the effects of ethinyl estradiol on serially-assessed fasting concentrations of the GH/IGF-1 axis and bone turnover and explore physiological mechanisms underlying hepatic responsiveness to oral versus transdermal and vaginal contraceptive therapy using an IGF-1 Generation Test as a probe.

Being tested
Combined Oral Contraceptive, Transdermal Contraceptive, Contraceptive Vaginal Ring
Keywords
Insulin-like growth factor-1, Combined oral contraceptive, Contraceptive Vaginal Ring, Transdermal Contraceptive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Combined Oral ContraceptiveDrug

    Also called Apri (Reclipsen)

    The proposed study is a preclinical, multi-site trial comparing the short-term effects of oral and non-oral ethinyl estradiol on the GH/IGF-1 axis and bone metabolism. Using a prospective repeated measures design, we will test the effects of 2 cycles of combined oral contraceptive (Apri or Reclipsen) on the GH/IGF-1 axis.

  • Transdermal ContraceptiveDrug

    Also called Xulane

    The proposed study is a preclinical, multi-site trial comparing the short-term effects of oral and non-oral ethinyl estradiol on the GH/IGF-1 axis and bone metabolism. Using a prospective repeated measures design, we will test the effects of 2 cycles of a transdermal contraceptive (Xulane) on the GH/IGF-1 axis.

  • Contraceptive Vaginal RingDrug

    Also called Nuva Ring

    The proposed study is a preclinical, multi-site trial comparing the short-term effects of oral and non-oral ethinyl estradiol on the GH/IGF-1 axis and bone metabolism. Using a prospective repeated measures design, we will test the effects of 2 cycles of vaginal ring contraceptive (Nuva Ring) on the GH/IGF-1 axis.

Study groups in NCT02367833
Study groupRoleWhat they receive
Combined Oral Contraceptives (COC)ExperimentalApri (or generic equivalent - Reclipsen) (30µg/d EE, 150 µg/d desogestrel) is a monophasic dosing regimen of 21 active and 7 placebo pills. On Day 1 of the Intervention, participants in the COC group will begin taking the COC pill. Each participant in this group will ingest active pills from the first pack each day for the first 21 days. Pills ingested on days 22 through 28 are placebo pills. A second pill pack will begin on day 29 and pills with active ingredients will be ingested from the second pack each day for days 29-49. On day 50, the participants will immediately begin a 3rd pill pack, if the post-study testing is still occurring, and will ingest a pill with active ingredients from the third pack for days 50-56 (or for as long as the post-study testing is occurring).
Receives: Drug: Combined Oral Contraceptive
Transdermal Contraceptive (TDC)ExperimentalParticipants in the TDC group will apply a 20 cm2 patch (Xulane: 20µg/d EE,150µg/d norelgestromin) to the abdomen, upper arm or buttock. The patch will be changed once weekly on the same day each week for weeks 1-3 (days 1-21, removed on day 22) and weeks 5-8 (days 29-56). Week 4 (days 22-28) will be a patch-free week. As soon as the post-study testing is complete, subjects will remove the patch.
Receives: Drug: Transdermal Contraceptive
Contraceptive Vaginal Ring (CVR)ExperimentalParticipants in the CVR group (NuvaRing - 15µg/d EE/120µg/d etonogestrel) will insert a vaginal ring into the vagina on Day 1 of the intervention. The vaginal ring will be removed and discarded after 3 weeks of continuous use (days 1-21 of continuous use and removed on day 22). There will be one week (days 22-28) that will be ring-free. A new ring will be inserted for days 29-49. On day 50, the second ring will be removed, and a third ring will be immediately inserted into the vagina (if the post-study testing is still occurring). The third ring will remain in the vagina for the last week of the post-study period (days 50-56). As soon as the post-study testing is complete, subjects will remove the ring.
Receives: Drug: Contraceptive Vaginal Ring
Control GroupNo interventionThe Control group will complete all procedures with the exception of contraceptive therapy.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in Insulin-like Growth Factor-1 (IGF-1), IGF Binding Proteins (IGFBP-1, IGFBP-3), and Acid Labile Subunit (ALS)

    Changes in serially-sampled fasting serum concentrations of insulin-like growth factor-1 (IGF-1) before and after 49 days of contraceptive therapy. Data were only collected for IGF-1 levels, no assays were performed for IGFBP-1, IGFBP-3, and acid labile subunit (ALS) and no raw data were collected due to insufficient funds.

    Measured: Baseline and post-49 days of contraceptive therapy

Secondary outcomes (2)
  1. Changes in Bone Turnover Markers

    Changes in serially-sampled fasting serum concentrations of markers of bone formation (osteocalcin, P1NP) and bone resorption (NTx, and CTx) before and after contraceptive therapy.

    Measured: Baseline and post-49 days of contraceptive therapy

  2. Changes in GH-stimulated IGF-1 Secretion

    Changes in IGF-1, IGFBP-1, IGFBP-3,and ALS in response to exogenously administered GH before and after contraceptive therapy.

    Measured: 49 days of contraceptive therapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Feb 2015 (estimated)
  2. Study startJan 2015
  3. Primary completionDec 2017
  4. Study completionDec 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02367833
Sponsor's protocol ID
STUDY00000053
Status last verified
Feb 2020
First submitted
27 Jan 2015
Last updated
9 Mar 2020
Data monitoring committee
No

Publications

  • Grossman D, White K, Hopkins K, Amastae J, Shedlin M, Potter JE. Contraindications to combined oral contraceptives among over-the-counter compared with prescription users. Obstet Gynecol. 2011 Mar;117(3):558-565. doi: 10.1097/AOG.0b013e31820b0244.

    PubMed 21343758
  • Allaway HCM, Misra M, Southmayd EA, Stone MS, Weaver CM, Petkus DL, De Souza MJ. Are the Effects of Oral and Vaginal Contraceptives on Bone Formation in Young Women Mediated via the Growth Hormone-IGF-I Axis? Front Endocrinol (Lausanne). 2020 Jun 16;11:334. doi: 10.3389/fendo.2020.00334. eCollection 2020.

    PubMed 32612574

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Combined Oral Contraceptive, Transdermal Contraceptive and Contraceptive Vaginal Ring in people with Bone; Disorder, Development and Growth, run by Penn State University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 6 Feb 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in Insulin-like Growth Factor-1 (IGF-1), IGF Binding Proteins (IGFBP-1, IGFBP-3), and Acid Labile Subunit (ALS) (time frame: Baseline and post-49 days of contraceptive therapy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02367833, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Mar 2020.

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