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Major Depressive DisorderNCT00188396

Effect of the Menstrual Cycle on the Symptoms of Depression and Treatment Response

A study testing Citalopram in people with Major Depressive Disorder and Depression, run by University Health Network, Toronto at 1 site in Canada.

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

Objectives: This prospective investigation will compare premenopausal, perimenopausal and postmenopausal women's response to antidepressant medication. The effects of the menstrual cycle on the symptoms of depression and antidepressant response will also be examined. Read more about this study

Who is it for?
Ages 18 to 65 years, women only
Conditions the study is for
Major Depressive Disorder, Depression
What is being tested?
Citalopram
How many people
44 participants
Where
1 siteCanada
Study dates
Apr 2004to Oct 2008
Phase
Interventional
Are there results?
None posted in the registry

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 65 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Women, ages 18-65 years old
  • Fulfilling DSM-IV criteria for major depressive disorder, which is not secondary to another pre-existing psychiatric condition or to a medical condition
  • Hamilton Depression Rating Scale (HAM-D-17) total score of at least 16
  • Able and willing to give meaningful written consent
  • 28 women premenopausal (having monthly periods); 28 women perimenopausal (having irregular periods); and 28 women menopausal (without a period for at least one year).
  • In good physical health.

Who cannot join

  • Subjects who are taking the birth control pill currently or within the last 3 months
  • Subjects who plan to become pregnant or were pregnant within the last year
  • Subjects who are taking hormone replacement therapy (or received it within the last three [3] months)
  • Subjects who meet DSM-IV criteria for substance abuse (consume > 4 alcoholic beverages per day)
  • Subjects who have tried 2 antidepressants for this episode
  • Subjects who have additional diagnosed psychiatric conditions (i.e. anxiety, substance use and psychotic disorders)
  • Subjects who have had both ovaries surgically removed.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University Health Network

    Toronto, Ontario, M5G 2C4

Other trials in Canada

About this study

Official title: The Effect of the Menstrual Cycle on the Symptoms of Depression and Treatment Response: A Comparison of Premenopausal, Perimenopausal and Postmenopausal Women

Objectives: This prospective investigation will compare premenopausal, perimenopausal and postmenopausal women's response to antidepressant medication. The effects of the menstrual cycle on the symptoms of depression and antidepressant response will also be examined.

Hypotheses: Premenopausal women will show a significantly better response to a selective serotonin reuptake inhibitor (SSRI) than peri- or postmenopausal women. Premenopausal women during lower estrogen phases of the menstrual cycle will complain of increased depressive symptoms despite treatment. Perimenopausal and postmenopausal women with irregular periods and generally low estrogen levels will show less symptom variability over time.

Read more

Method

Subjects: Eighty-four women (28 premenopausal, 28 perimenopausal, 28 postmenopausal) meeting Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria for major depressive disorder will be enrolled in the study.

Procedure: All the subjects will be followed prospectively for 12 weeks and through 2 menstrual cycles while receiving treatment with a standard SSRI antidepressant agent. All eligible women will have a structured clinical interview and will complete questionnaires assessing their depressive symptoms. Blood samples will be collected to evaluate for reproductive hormone levels during the late follicular, midluteal and late luteal phases of the menstrual cycle for two consecutive cycles. Serum SSRI levels will also be collected at these times. As the women in the perimenopausal and postmenopausal groups either have irregular menstrual cycles or no longer cycle, they will have blood samples drawn at baseline and on 6 other occasions.

Research Implications: As the majority of psychiatric medication is prescribed to women, understanding the interplay between the menstrual cycle and antidepressant medication will ultimately translate into more diverse and improved patient care. The proposed study is one within a developing research program, which will in part be further guided by this study.

Read the detailed description

Rationale: The lifetime prevalence of depression is twice as high in women as in men; this is a robust and frequently replicated finding in cross national epidemiology studies. Women are also more prone to various depressive disorders at certain stages of the life cycle yet the etiologic mechanisms and therapeutic implications for these increased rates of depression especially at certain life stages remain largely unknown. The hormonal milieu appears to have an independent impact on the occurrence of depression and potentially on treatment response as the disparity between the sexes only emerges after the onset of puberty and persists until the age of 55.

There is accumulating evidence suggesting differential antidepressant drug effects between men and women and recent preliminary evidence that there may be some differences in treatment response in women by age. Younger women with depression may be more responsive to serotonergic antidepressants and this may relate to changes in menstrual status and estrogen levels. Postmenopausal women have lower estrogen levels and may lack the enhancing effect of estrogen on serotonergic mechanisms and, thus, may not be able to achieve the full therapeutic potential of the serotonergic antidepressants.

The reported differences in response rates between premenopausal and postmenopausal women may be related to the presence or absence of a menstrual cycle as well as lowered estrogen levels found in postmenopausal women although this hypothesis has not been formally tested. A prospective study is therefore proposed to primarily characterize the rates of response following SSRI therapy in depressed women who meet criteria for Major Depressive Disorder (MDD) and are treated for a current depressive episode. Menstrual status will be confirmed based on reproductive hormone levels. Perimenopausal and postmenopausal women will be studied separately because of their different hormonal profile. All women will rate their symptoms of depression on a daily basis and in addition, independent raters will rate depressive symptoms prospectively to determine the relationship between change in depressive symptoms and antidepressant response across the menstrual cycle. All women will be treated with citalopram and paroxetine will be the secondary alternative.

Objectives

Primary objective: To compare reduction in severity of depression in premenopausal, perimenopausal and postmenopausal women.

Secondary objective: To assess the symptoms of depression and antidepressant response across the menstrual cycle in premenopausal women with comparisons to peri- and postmenopausal women.

Exploratory objective: To examine the relationship between estrogen and SSRI level across the menstrual cycle.

Hypotheses

Primary hypothesis: The mean reduction in HRSD scores following SSRI antidepressant therapy will be significantly higher in premenopausal compared to peri-and postmenopausal women.

Secondary hypotheses:

  1. Depression scores (based on HRSD and the Prospective Record of the Impact and Severity of Menstrual Symptoms [PRISM] calendar) will be significantly higher during the lower estrogen phases of the menstrual cycle than the higher estrogen phases in premenopausal women who remain on constant doses of citalopram.
  2. The above relationship will not be discernable in perimenopausal and postmenopausal women over a comparable time period and during comparable antidepressant treatment.

Exploratory hypothesis: There will be a positive correlation between estrogen levels and SSRI levels.

Significance: This study takes an innovative approach to increasing our understanding of the hormonal contribution to symptom severity and antidepressant treatment response. Since the majority of psychotropic medication is prescribed to women, understanding the interactive process between the menstrual cycle and antidepressant medication has the potential to change clinical practice by allowing for more individualized pharmacological treatment within an evidence based approach.

Being tested
Citalopram
Keywords
Major Depressive Disorder, Women's Mental Health, Hormones, Citalopram, Antidepressive agents, Mental Health
Medical subject headings
Depressive Disorder, Major, Depression, Psychological Well-Being

What participants receive

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

  • CitalopramDrug

What is being measured

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

  1. Hamilton Depression Rating Scale (HAM-D)

    Measured: 12 weeks

Secondary outcomes (5)
  1. Clinical Global Impression (CGI)

    Measured: 12 weeks

  2. Trimodal Anxiety Questionnaire (TAQ)

    Measured: 12 weeks

  3. Women's Health Questionnaire

    Measured: 12 weeks

  4. Prism calender

    Measured: 12 weeks

  5. Biological measures (β-estradiol, estrogen, progesterone, follicle-stimulating hormone [FSH], luteinizing hormone [LH], and testosterone)

    Measured: 12 weeks

Timeline

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

  1. First posted16 Sep 2005 (estimated)
  2. Study startApr 2004
  3. Primary completionOct 2008
  4. Study completionOct 2008

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 N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
44 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00188396
Sponsor's protocol ID
04-0225-AE
Status last verified
Jan 2007
First submitted
9 Sep 2005
Last updated
13 Mar 2009
Results posted
No
Data monitoring committee
No

Publications

  • Grigoriadis S, Kennedy SH, Bagby RM. A comparison of antidepressant response in younger and older women. J Clin Psychopharmacol. 2003 Aug;23(4):405-7. doi: 10.1097/01.jcp.0000085415.08426.c6.

    PubMed 12920418

Questions about this trial

What is this clinical trial studying?

A study testing Citalopram in people with Major Depressive Disorder and Depression, run by University Health Network, Toronto at 1 site in Canada.

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 6 inclusion and 7 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 Mar 2009. 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 Canada. 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Hamilton Depression Rating Scale (HAM-D) (time frame: 12 weeks). 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 NCT00188396, which also lists 1 linked publication.

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 Mar 2009; AzTrials last refreshed its copy on 8 Nov 2026.

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