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Anorexia NervosaPhase 3NCT01301183

Effects of Anorexia Nervosa on Peak Bone Mass

A Phase 3 study testing RhIGF-1 with transdermal 17-beta estradiol in people with Anorexia Nervosa, run by Massachusetts General Hospital 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

Teenage girls with anorexia nervosa (AN) are at risk for low bone density and low rates of bone accrual, raising concerns regarding acquisition of peak bone mass, an important determinant of future bone health and fracture risk. Read more about this study

Who is it for?
Ages 14 to 22 years, women onlyHealthy volunteers can take part
Conditions the study is for
Anorexia Nervosa
What is being tested?
RhIGF-1 with transdermal 17-beta estradiol
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
75 participants
Where
1 siteUnited States
Study dates
Feb 2011to Mar 2020
Phase
Phase 3
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 14 to 22 years
  • Women only
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • Age: 14-22 years old
  • Bone age (BA): ≥14 years
  • Should meet DSM IV criteria for AN
  • Subjects at MGH will be evaluated by co-investigator Dr. David Herzog, Director of the Harris Center for Eating Disorders, at MGH, and by Dr. Debra Katzman, co-investigator, and the Hospital for Sick Children, Toronto who directs their Eating Disorders Program, respectively, before enrollment.
  • Healthy adolescent girls 14-22 years
  • BA of ≥14 years
  • BMI between the 10th-90th percentiles for age
  • Regular menstrual periods every 28-35 days for subjects ≥ 2 years post-menarche.

Who cannot join

  • Diseases known to affect bone metabolism including untreated thyroid disease, Cushing's syndrome, diabetes, pituitary disease, renal failure and prior bone fracture within six months of the study.
  • Medications known to affect bone metabolism, including gonadal steroids, within three months.
  • Evidence of suicidality, psychosis, or substance abuse.
  • Premature ovarian failure, as demonstrated by an elevated FSH.
  • Abnormal TSH.
  • Hematocrit <30%, Potassium <3.0 mmol/L, Glucose <50 mg/dl
Show all 9Show fewer
  • Pregnancy
  • History of malignancy
  • Contraindications to estrogen therapy (for girls with AN)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

Teenage girls with anorexia nervosa (AN) are at risk for low bone density and low rates of bone accrual, raising concerns regarding acquisition of peak bone mass, an important determinant of future bone health and fracture risk. Important factors contributing to low bone density in AN include low levels of estrogen and insulin like growth factor-1 (IGF-1). While estrogen is important for preventing bone loss, IGF-1 is important for optimizing bone formation. We have shown in a previous study that replacement of estrogen is effective in increasing bone density in teenage girls with AN; however, this increase in bone density remains lower than that seen in normal-weight controls over the same duration, and residual deficits persist. Importantly, the impact of administering replacement doses of IGF-1 with estrogen replacement has not been studied in teenagers with AN.

This study will examine the impact of administering recombinant human (rh) insulin like growth factor-1 (rhIGF-1) with estrogen (to mimic pubertal levels of these hormones) versus administration of estrogen alone on bone metabolism in adolescent girls with anorexia nervosa (AN).

One aim of this proposal is to investigate whether co-administration of insulin like growth factor-1 (rhIGF-1) with physiologic estradiol replacement to adolescent girls with AN will increase BMD (bone mineral density) more than estrogen monotherapy, and whether bone mass will approach that seen in healthy adolescent girls. An additional aim is to determine whether co-administration of rhIGF-1 with estradiol to mimic the normal pubertal milieu stimulates bone formation through an IGF-1 mediated anabolic effect, increases bone density to a greater extent than estrogen monotherapy, and improves bone mass accrual to approach that in healthy controls. The impact of rhIGF-1 +estradiol versus estradiol alone on bone microarchitecture will also be assessed.

Read the detailed description

Given the increasing prevalence of AN, its profound consequences on bone health, and lack of optimal treatment interventions, these studies will provide critical data needed to identify optimal treatment strategies for this severe co-morbid disease using state- of- the- art endpoints of BMD, bone microarchitecture and strength. Although both low IGF-1 and hypogonadism are associated with increased skeletal fragility in AN, the mechanisms by which these factors interact are incompletely understood. Specifically, the increased skeletal fragility that is associated with AN is poorly reflected by DXA-derived BMD. Furthermore, the magnitude and mechanisms by which IGF-1 deficiency and hypogonadism influence bone microarchitecture are not defined. The growing incidence of eating disorders in adolescent girls and their long-term effects on skeletal health provide strong rationale for studies that will provide a better understanding of these issues and the evaluation of rational therapeutic approaches. The studies described in this proposal utilize both cross-sectional and RCT approaches to achieve this goal. Additionally, our utilization of sophisticated techniques such as high resolution peripheral QCT (HR-pQCT) will improve our understanding of the relationship between IGF-1, gonadal steroids and bone quality and will aid in the development of effective therapies in the treatment of skeletal fragility in Anorexia Nervosa.

Being tested
RhIGF-1 with transdermal 17-beta estradiol, Placebo and transdermal 17-beta estradiol
Keywords
Anorexia Nervosa, Estrogen, Teenagers, IGF-1
Medical subject headings
Anorexia Nervosa

What participants receive

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

  • RhIGF-1 with transdermal 17-beta estradiolDrug

    Also called Mecasermin and Vivelle Dot patch

    RhIGF-1 will be started at a dose of 30mcg/k/dose twice daily, and will be titrated up or down in 25% dose increments to maintain IGF-1 levels in the upper half of the normal range.

    Estradiol will be delivered transdermally using a 100 mcg patch (Vivelle Dot) changed twice weekly. Subjects will receive cyclic micronized progesterone (Prometrium) 100 mg daily for the first 10 days of each month. All subjects will receive supplemental calcium and vitamin D.

  • Placebo and transdermal 17-beta estradiolDrug

    Also called Vivelle Dot patch

    Placebo injections will be administered twice daily. Estradiol will be delivered transdermally using a patch (100 mcg) changed twice weekly. Subjects will receive cyclic micronized progesterone (Prometrium) 100 mg daily for the first 10 days of each month. All subjects will receive supplemental calcium and vitamin D.

Study groups in NCT01301183
Study groupRoleWhat they receive
Rh IGF-1 + Transdermal estradiolExperimentalRhIGF-1 with transdermal 17-beta estradiol
Receives: Drug: RhIGF-1 with transdermal 17-beta estradiol
Placebo + Transdermal estradiolPlacebo comparatorPlacebo and transdermal 17-beta estradiol
Receives: Drug: Placebo and transdermal 17-beta estradiol

What is being measured

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

  1. Change in Bone Density Over a 12-month Period

    Change in lumbar spine BMD z-score over 12 months as assessed by dual energy x-ray absorptiometry (DXA) The z-score indicates the number of standard deviations that BMD is away from the mean for age, sex and race. A z-score of 0 is equal to the mean with negative numbers indicating values lower than the mean and positive values higher values. A positive change in z-scores indicates a favorable outcome whereas a negative change in z-scores indicates an unfavorable outcome.

    Measured: 12 months

Secondary outcomes (1)
  1. Change in Trabecular Number at the Ultradistal Radius Over a 12-month Period

    Change in trabecular number at the ultradistal radius over 12 months as assessed by high resolution peripheral quantitative computed tomography (HRpQCT)

    Measured: 12 months

Timeline

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

  1. First posted23 Feb 2011 (estimated)
  2. Study startFeb 2011
  3. Primary completionMar 2019
  4. Study completionMar 2020

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
75 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01301183
Sponsor's protocol ID
2010-P-002768
Status last verified
Jun 2021
First submitted
18 Feb 2011
Last updated
13 Jul 2021
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing RhIGF-1 with transdermal 17-beta estradiol in people with Anorexia Nervosa, run by Massachusetts General Hospital 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 8 inclusion and 9 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 13 Jul 2021. 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. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 13 Jul 2021). 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?

Change in Bone Density Over a 12-month Period (time frame: 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 13 Jul 2021.

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