+ All Categories
Home > Documents > Pituitary Hormone Replacement What ’ s the Big Deal?

Pituitary Hormone Replacement What ’ s the Big Deal?

Date post: 16-Jan-2016
Category:
Upload: ezhno
View: 49 times
Download: 0 times
Share this document with a friend
Description:
- PowerPoint PPT Presentation
Popular Tags:
81
Theodore C. Friedman, M.D., Ph.D. Associate Professor of Medicine - UCLA Chief, Division of Endocrinology, Molecular Medicine and Metabolism Charles R. Drew University Everything You Wanted to Know About Pituitary Hormone Replacement That Your Doctor Never Told You MAGIC Foundation Affected Adult Convention February 11, 2007
Transcript
Page 1: Pituitary Hormone Replacement What ’ s the Big Deal?

Theodore C. Friedman, M.D., Ph.D.Associate Professor of Medicine - UCLA

Chief, Division of Endocrinology, Molecular Medicine and Metabolism

Charles R. Drew University

Everything You Wanted toKnow About Pituitary Hormone Replacement That Your Doctor

Never Told You

MAGIC Foundation Affected Adult Convention February 11, 2007

Page 2: Pituitary Hormone Replacement What ’ s the Big Deal?

Pituitary Hormone ReplacementWhat’s the Big Deal?

• Pituitary disorders are common, but experts in treating them are not!

• Small changes in replacement may make a big improvement in symptoms

• Many endocrinologists do not understand how to properly replace patients with hypopituitarism – They do not understand (or don’t believe in) monitoring hormone

levels

• We need to do more!

Page 3: Pituitary Hormone Replacement What ’ s the Big Deal?

What’s the Big Deal, Doc? (cont.)

• Patients with hypopituitarism that receive conventional therapy have increased mortality – This is suggested - but not proven - to be due to GH

deficiency (Rosen and Bengtsson, Lancet, 1990, 336:285; Bates, et al., JCEM, 1996, 81:1169)

• The quality of life was seen to decrease in patients with hypopituitarism– This may be due to suboptimum replacement

of pituitary hormones

Page 4: Pituitary Hormone Replacement What ’ s the Big Deal?

Hormonal Axes

• Adrenal (corticotropes)=CRH-ACTH-Cortisol• Thyroid (thyrotropes)= TRH-TSH-T4/T3• Gonads (gonadotropes)= GnRH-LH/FSH-

Testosterone/estrogen• GH (sommatotropes) =GHRH-GH-IGF1• Prolactin-sommatomamotropes• Posterior Pituitary-ADH, oxytocin

Page 5: Pituitary Hormone Replacement What ’ s the Big Deal?

Order of Hormone Deficiencies

• GH

• Gonadotropins (FSH, LH)

• TSH

• ACTH

• Prolactin

• Posterior pituitary hormones

Page 6: Pituitary Hormone Replacement What ’ s the Big Deal?

Glucocorticoid Insufficiency

• Needs significant impairment of pituitary function• Classically, pituitary only affects cortisol, not

mineralocorticoids (salt regulating hormones from the adrenals)

• Can be life-threatening, but most patients do surprisingly well

• Fatigue, lethargy, nausea, vomiting, joint pains, abdominal pain, weight loss, hypoglycemia (rare in adults), low sodium

Page 7: Pituitary Hormone Replacement What ’ s the Big Deal?

Glucocorticoid InsufficiencyDiagnosis

• Screen with 8 AM cortisol• If < 3 g/dL-clear glucocorticoid insufficiency• If > 12 g/dL and not severe stress, glucocorticoid

insufficiency unlikely• 3-12 g/dL-gray zone-do cosyntropin test (unless acute)• Stimulation tests need to be performed in a place that

has expertise.

Page 8: Pituitary Hormone Replacement What ’ s the Big Deal?

Standard (1 hr) Cosyntropin Test

• 250 g of IV cosyntropin (ACTH1-24)

• Plasma cortisol at time 0, 30 and 60 minutes– Any value over 20 g/dL is normal

• If peak response is less than 10 g/dL, glucocorticoid replacement is required

• If peak response is between 10 and 20 g/dL – Glucocorticoid replacement is recommended during stresses,– Otherwise replacement needs to be individualized

Page 9: Pituitary Hormone Replacement What ’ s the Big Deal?

One mcg Cosyntropin Test

• 1 g of IV cosyntropin (ACTH1-24) (diluted in saline)

• Plasma cortisol at time 0 and 30 minutes (action ends after 30 min)– Any value over 18 g/dL is normal (?)

• Will pick up more mild cases – Should they be treated or just covered?

Page 10: Pituitary Hormone Replacement What ’ s the Big Deal?

1 g vs. 250 g Cosyntropin Test• 250 g is supraphysiological

– Will miss subtle glucocorticoid insufficiency

• Mild ACTH deficiency, like mild hypothyroidism exists – Consequences of misdiagnosis may be severe

• Why do the test?– My Philosophy

• Want as many patients to know they have borderline HPA function • Want as few patients as possible on replacement steroids

– True physiological replacement (10-15 mg/day of hydrocortisone), though, may be relatively benign

– Cutoffs unclear, but I use cortisol of 18 ug/dL for one mcg and 20 ug/dL for 250 mcg test

Page 11: Pituitary Hormone Replacement What ’ s the Big Deal?

ITT/ metyrapone Tests

• Both can exacerbate glucocorticoid insufficiency• Both are non-physiological• Rarely needed• ITT requires physician supervision, but can also

be used to diagnose GH deficiency• Patients feel horrible after metyrapone test

Page 12: Pituitary Hormone Replacement What ’ s the Big Deal?

Daily Cortisol Production Rate In Man

• Esteban et al. (JCEM, 72: 39, 1991) measured daily cortisol production rates in normal volunteers with a stable cortisol isotope method– 9.9 +/- 2.7 mg/day, 5.7 mg/m2 day

• Most, but not all of oral cortisol is absorbed– Need to take 12-15 mg/day

• Most glucocorticoid replacement is

supraphysiological– Leads to osteoporosis, glucose intolerance and increased infections

• True physiological replacement is likely to be benign• Cortisol secretion is highly regulated

– Stress, circadian rhythm-doubt we can do as well as mother nature

Page 13: Pituitary Hormone Replacement What ’ s the Big Deal?

Glucocorticoid Replacement

• Glucocorticoids can be dangerous

– Should be clear indication for treatment

• Patients with burn out (“adrenal fatigue”) have normal HPA axis (Mommersteeg et al., Psychoneuroendocrinology 2006)

• Increase stress should activate, not “burn out” the adrenals

• Would be careful about “isocort” or other adrenal extracts

– These contain cortisol plus other bioactive adrenal hormones

– Once you start, hard to get off, so decide careful

Page 14: Pituitary Hormone Replacement What ’ s the Big Deal?

Glucocorticoid Replacement (2)• Most patients are over-treated• Earliest manifestation of excess treatment is

– Easy bruisability– Weight gain, central obesity, etc.

• Earliest manifestation of inadequate treatment is joint pain• Reasonable to mimic circadian rhythm with most or all cortisol, given first

thing in the morning• Other studies suggest highest dose in AM, with lower doses throughout the day

– May mimic cortisol secretion

• Want to avoid large nighttime administration as it could lead to sleep disturbances– But some patients need a bit of cortisol to go into deep sleep

Page 15: Pituitary Hormone Replacement What ’ s the Big Deal?

Glucocorticoid Replacement (3)• No studies comparing different treatment regimens• My approach is to use hydrocortisone mainly in AM• Aim for dose between 15 and 20 mg/day in a woman

– Slightly higher in a man• Decrease dose slowly until some symptoms develop, then go back a dose• Small changes make a big difference, especially between 15 and 25 mg a

day of hydrocortisone• Increase dose with illness• Short term: it’s better to err on giving more• Long term: it’s better to give less• Can take 5 mg more during heavy exercise

Page 16: Pituitary Hormone Replacement What ’ s the Big Deal?

Glucocorticoid Replacement (Try To Avoid Adrenal Crisis)

• Patients on lower doses of glucocorticoids more likely to have a crisis – But they still do better long-term

• Exacerbated by the flu, other illnesses• Less likely in hypopit patients than in those with adrenal disease• Med-alert bracelet• Double glucocorticoid dose first• Then Act-O-vial 100 mg solucortef plus syringe, available for IM injection• Lots of salt and fluids (Gatorade)• Florinef (synthetic aldosterone)• Lots of anti-nausea meds (zofran, phenergan), pain meds, anxiety meds (ativan) on

hand• Do not be stoic - GO TO ER!

Page 17: Pituitary Hormone Replacement What ’ s the Big Deal?

Monitoring Glucocorticoid Replacement• Signs and Symptoms

– 24 hr urine for 17-hydroxysteroids (17-OHS)– UFC tends to be high during replacement

• In replacement, most of UFC excretion occurs right after taking the cortisol– High doses are not bound to CBG

• Exceed reabsorption by the kidney

• 17-OHS (corrected for creatinine excretion in g/day) reflects cortisol metabolism– More integrated throughout the day

• Other hormones affect glucocorticoid metabolism

Page 18: Pituitary Hormone Replacement What ’ s the Big Deal?

Central Hypothyroidism

• Common, even with small tumors

• Mild cases may be more manifest clinically – More than “subclinical hypothyroidism” due to actual low thyroid

hormones in central hypothyroidism

• Similar signs/symptoms as in primary hypothyroidism

• Low free T4 in the face of lowish TSH

• In mild cases, free T4 between 0.7 and 1.0 ng/dL

• T3 usually not helpful

Page 19: Pituitary Hormone Replacement What ’ s the Big Deal?

Central HypothyroidismConfirmation

• TRH test– Hard to get– Can show blunted TSH response to TRH

• Nocturnal TSH test – TSH should rise at least 1.5-fold between 5 PM and

midnight in normals– Not in patients with central disease– Not easy to get blood at midnight

• Usually base on baseline free T4 and TSH

Page 20: Pituitary Hormone Replacement What ’ s the Big Deal?

Central HypothyroidismTreatment

• L-thyroxine in most cases– Some patients with primary hypothyroidism,

though, do better on T4/T3 combinations (Buneviius et al, NEJM, 1999, 340:424)

– Some patients with central hypothyroidism may do better on T4/T3 or T4/Armour combinations

• GH deficiency can lead to impaired T4 to T3 conversion– T3 may be especially beneficial in central hypothyroidism

• Treating with GH can decrease FT4 levels and unmask central hypothyroidism– Recommended to treat borderline central hyopthyroidism to get full

benefit of GH therapy

Page 21: Pituitary Hormone Replacement What ’ s the Big Deal?

Central HypothyroidismTreatment (2)

• Thyroid hormone treatment increases cortisol breakdown – Can put someone with adrenal insufficiency into an adrenal crisis

• Make sure adrenal insufficiency is considered/tested before starting thyroid hormone

• Monitor by aiming for free T4 in upper-normal range (1.5-1.7 ng/dL)

• TSH will be suppressed– Usually not worth measuring after starting treatment

• Patients with both primary hypothyroidism and a central component – Should also be monitored with free T4 and not TSH measurements

Page 22: Pituitary Hormone Replacement What ’ s the Big Deal?

Growth Hormone Deficiency• Patients with hypopituitarism have increased mortality

– Suggested, but not proven, to be due to GH deficiency

• Growth hormone deficiency in adults results in– Decreased bone formation– Increased fat mass (central obesity)– Decreased muscle mass– Lipid abnormalities– Increased thickness of blood vessels– Increased inflammatory markers– Impaired quality of life– Increased number of sick days– Impaired exercise tolerance

• Microadenomas may cause GH deficiency

Page 23: Pituitary Hormone Replacement What ’ s the Big Deal?

Growth Hormone DeficiencyDiagnosis

• Screen with IGF-I– If in top 75% of normal range for age and sex (> 150 ng/mL), GH deficiency unlikely– If < 75 ng/mL, GH deficiency likely

• Stimulation testing– Arginine-GHRH- GH deficient if GH (by RIA) is < 9 ng/mL– (RIA is 2X ICMA; 9 by RIA=4.5 by ICMA)– ITT- GH deficient if GH (by RIA) is < 5 ng/mL

• I use Arginine-GHRH, unless need to use ITT for adrenal insufficiency workup– Blunted response in obesity– Blunted response in males

Page 24: Pituitary Hormone Replacement What ’ s the Big Deal?

Growth Hormone DeficiencyDiagnosis (cont.)

• Stimulation tests are non-physiological– Day-to-day GH/IGF-I axis more important than with stimulation

• Unclear what to do with patient with hypopituitarism, lowish IGF-I and normal stimulation testing

Page 25: Pituitary Hormone Replacement What ’ s the Big Deal?

Adult Growth Hormone Treatment

• 10% of dose/body weight than that of children• Don’t need to adjust for body weight• Women, especially on oral estrogens, need higher doses than men• Start at 0.4 mg/day in women, 0.2 mg/day in men• Final dose varies widely and can not be predicted• Titrate upwards with IGF-I measurements monthly• Aim for IGF-I in upper 1/3 of normal range

– 300 ng/mL, but depends on assays– Usually not much improvement in symptoms until in this range

• Too much GH-joint (hand mainly) swelling and pain

Page 26: Pituitary Hormone Replacement What ’ s the Big Deal?

Diabetes Insipidus

• Defect in ADH – Also called AVP– Posterior pituitary

• Excessive urination and thirst• Mild cases are probably common and worthy of

treatment• Chronic polyuria may lead to bladder/kidney problems• How many times are you waking up at night?

Page 27: Pituitary Hormone Replacement What ’ s the Big Deal?

Diabetes Insipidus (2)• I screen by having the patient collect urine for 24 hours, then

measure the volume – Greater than 3 L indicates diabetes insipidus likely

• I confirm with a 12 hour fast (no water!) – Collect an 8 AM serum and urine osmolality and ADH level

• DI – High serum osmolality (>300 mOsm/kg)– Low urine osmolality (<500 mOsm/kg)– Low ADH (< 1.5 pg/mL)

• Formal water deprivation test probably not needed

Page 28: Pituitary Hormone Replacement What ’ s the Big Deal?

Diabetes Insipidus(cont.)

• DDAVP pills probably the best– Most endocrinologists still recommend nasal puffs

• Take most of the dose at night to prevent waking up at night

• Should have a period of “break-through” urination, usually in the evening.

• Treatment is pretty benign

Page 29: Pituitary Hormone Replacement What ’ s the Big Deal?

Abnormalities Of Gonadotropes• Gonadal Axis

– GnRH-LH/FSH -Testosterone/estrogen/progesterone

• Lack of ovulation

• Irregular or no periods

• Infertility

• Vaginal dryness

• Osteoporosis

• Decreased libido

• Possibly poor sense of well-being

Page 30: Pituitary Hormone Replacement What ’ s the Big Deal?

What To Do If You Have Gonadotropin Dysfunction?

• If trying to get pregnant– Determine ovulation– See reproductive endocrinologist

• If not trying to get pregnant– Replace estrogen– Testosterone– Possibly Progesterone

Page 31: Pituitary Hormone Replacement What ’ s the Big Deal?

Estrogen Replacement in Women• Amenorrhea or oligomenorrhea indicates gonadotropin

deficiency• Irregular periods may be early sign of pituitary dysfunction• Previous WHI and HERS studies on post-menopausal women

were not on estrogen – Average age in WHI: 63

• Younger hypogonadal women likely to benefit from estrogen replacement

• Young women ‘feel better” on higher estrogen preparations – May require higher doses than post-menopausal women– Less clear for older women

• Replacement and decision to have periods or not based on patient preference and age

Page 32: Pituitary Hormone Replacement What ’ s the Big Deal?

Estrogen Replacement in Women (cont.)

• Choices include– Premarin (pregnant mare urine, “conjugated estrogen”, multiple

estrogenic compounds)

– Oral estrogen compounds (estrace)

– Birth control pills• Contain relatively high doses progesterone and low doses estrogen

– Estrogen patches (Climara, Vivelle)

– Estrogen creams (Estrogel)

– Vaginal estrogen (Fem-ring, Estring)

– Compounded Estrogen (creams, sublingual drops, pills)

Page 33: Pituitary Hormone Replacement What ’ s the Big Deal?

Oral Estrogen Replacement, But Not Other Routes

• First pass effect in the liver• Blocks the action of GH at the liver to raise IGF-1

– Leads to high GH and low IGF-1 (both bad)

• Raises sex hormone binding globulin (SHBG)• Raises total testosterone, but decreases free testosterone

– Low free testosterone may lead to decreased libido (and maybe low energy, decreased muscle mass)

• Recent study showed that effects of oral estrogens (including birth control pills) decrease free testosterone levels for at least a year after discontinuing

Page 34: Pituitary Hormone Replacement What ’ s the Big Deal?

Oral Estrogen Replacement, But Not Other Routes (2)

• Raises thyroid-binding globulin (TBG) – Can lead to an increase in thyroid hormone requirements

• Raises cortisol-binding globulin (CBG) – Leads to high levels of total cortisol– Makes testing for adrenal insufficiency difficult

Page 35: Pituitary Hormone Replacement What ’ s the Big Deal?

Oral Estrogen Replacement• In women with hypopituitarism, avoid it!

Page 36: Pituitary Hormone Replacement What ’ s the Big Deal?

What Type of Estrogen is Best?• Ovaries make estrone (E1), estradiol (E2), estriol (E3)• Estradiol is most abundant (“bioidentical”)• Slight evidence that estrone is detrimental (breast cancer) and

estriol is good• Oral estrogens get converted to estrone• I use mainly estradiol (Climara or Estrogel)

– Titrate dose so that estradiol is in the upper normal range for the follicular period (50-100 pg/mL)

• Some compounding pharmacies encourage bi-est (estradiol/ estriol) or tri-est (estrone/ estradiol/ estriol)

• Young hypopit patients should take estrogen daily

Page 37: Pituitary Hormone Replacement What ’ s the Big Deal?

Should You Take Estrogen/Progesterone to Induce A Period?

• Taking 5-10 mg of Provera (synthetic Progestin) or 100-200 mg of Prometrium (progesterone “bioidentical”) for 10 days, then stopping, will usually induce a period

• Taking 2.5 mg of Provera or 100 mg of Prometrium daily will usually not induce a period

• I tend to have women less than 40-45 have a monthly period, older than that not to have a period

• Women with an intake uterus should take a progesterone

Page 38: Pituitary Hormone Replacement What ’ s the Big Deal?

Androgen Replacement - Men• Symptoms include low libido, impotence, fatigue, decreased muscle mass• Soft testes may be the earliest sign of gonadotropin deficiency• Small testes or gynecomastia may be seen

– Helpful in borderline testosterone levels

• Measure total testosterone levels – If < 200 ng/dL, testosterone deficiency likely

• If 200-350 ng/dL– Borderline result, use clinical judgment or – measure bioavailable testosterone (free plus available) or – free testosterone by equilibrium dialysis, if possible

• LH/FSH helpful only to exclude primary hypogonadism

Page 39: Pituitary Hormone Replacement What ’ s the Big Deal?

Androgen Replacement – Men (2)• Testosterone gel or patch probably preferable to injections• HCG is another possibility

– Making a come-back (doesn’t cause testicular shrinkage)– May be used in combination with other treatments

• Aim for total testosterone levels in the upper normal range• Androderm patch 5 mg

– May need 2 patches to achieve appropriate levels (lots of skin irritation)

• AndroGel 1% 5 G delivers 5 mg– May also need higher doses (7.5 or 10 G)– Comes in a pump

• Graded dosing for all preparations wouldbe desirable

Page 40: Pituitary Hormone Replacement What ’ s the Big Deal?

What’s the Problem?• Most patients are

– On too much cortisol– On not enough thyroid medication– On not enough growth hormone– Not on testosterone

• These lead to weight gain and depression• Get your doses adjusted!

Page 41: Pituitary Hormone Replacement What ’ s the Big Deal?

Hormonal Interactions

• Treating a patient with adrenal insufficiency and hypothyroidism with thyroid hormone – Increases the breakdown of cortisol– May lead to an adrenal crisis

• Thyroid hormone may also – increase catabolism of other hormones (GH, testosterone)– lead to increased requirements when thyroid dose is increased

• Treating with GH may increase T4 to T3 conversion– Dose of T3 (if on T3) may need to be reduced

• GH may decrease TSH– Treating with GH may unmask or exacerbate central hypothyroidism– May need a higher dose of thyroid hormone once GH treatment is started

Page 42: Pituitary Hormone Replacement What ’ s the Big Deal?

Hormonal Interactions (2)• Oral, but not transdermal estrogens, increase the need for L-

thyroxine in women with hypothyroidism (Arafah, BM, NEJM, 344:1743)

• Oral, but not transdermal estrogens, increase the need for GH replacement

• Stopping oral estrogens leads to an elevated IGF-1 (hand swelling)

• Patients on GH replacement should probably not be on oral estrogens

• Treating adrenal insufficiency may unmask Diabetes Insipidus

Page 43: Pituitary Hormone Replacement What ’ s the Big Deal?

Hormonal Interactions (3)• Increased GH/ IGF-I leads to lower levels of cortisol (11-

HSD1)– Thus, treating a patient with hypopituitarism with GH will

decrease cortisol levels• We had one patient that was over-replaced on glucocorticoids,

under-replaced on thyroid hormone and not treated with GH– We started GH, decreased her glucocorticoids

and increased her L-thyroxine– she went into adrenal crisis

• Make changes slowly• Monitor frequently

Page 44: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone for Women

Page 45: Pituitary Hormone Replacement What ’ s the Big Deal?

The Physiologic Role Of Testosterone In Women Remains Poorly Understood

• Previous studies of testosterone supplementation,

largely in surgically or naturally menopausal

women, have reported improvements in

– subjective measures of sexual function

– sense of well being

– variable changes in markers of bone formation and resorption

Page 46: Pituitary Hormone Replacement What ’ s the Big Deal?

Potential Benefits of Androgen Supplementation in Women

• Improved sexual function• Improved bone mineral density• Improved muscle mass and function• Improved mood and sense of well-being• Improved cognitive function• Amelioration of autoimmune disease• Amelioration of premenstrual syndrome• Improvement in dry eye syndrome

Page 47: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone in Hypopituitarism

• A recent large study demonstrated that patients with hypopituitarism have increased mortality– mainly due to cardiovascular, respiratory, and cerebrovascular events

• Hypopituitarism in women is associated with a number of symptoms, including – Obesity– Poor quality of life– Decreased libido– Osteopenia

• These persist in spite of standard hormonal replacement

Page 48: Pituitary Hormone Replacement What ’ s the Big Deal?

Severe Androgen Deficiency in Women with Hypopituitarism

• Women with hypopituitarism– Have impairment of both the adrenal and ovarian

sources of androgen production– Have lower T and DHEAS levels than women with

ovarian failure alone

Ref Miller et al., J Clin Endocrinol Metab 2001;86:561-7.

Page 49: Pituitary Hormone Replacement What ’ s the Big Deal?

Potential Adverse Effects Associated with Testosterone Supplementation

• The potential risks of testosterone administration to women include – virilization– hirsutism– acne – effects on plasma lipids– effects on behavior

Page 50: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone Delivery• Currently, the only FDA-approved drug for testosterone in women is Estratest

– Contains methyl testosterone– It is a compound that, when given orally, is associated with liver toxicity in animals and

humans

• DHEA is a considered a prohormone of testosterone– Most of its actions are probably due to binding to the testosterone receptor

• DHEA (25-50 mg)/day is a reasonable approach in women

• Other possibilities include– Patches (Procter & Gamble, no FDA approval, 2005)– Gels (compounded or investigational)– Injections– Sublingual

Page 51: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone in Hypopituitarism

• Miller et al. JCEM 91, 1683-1690, 2006• Design: This was a 12-month randomized,

placebo-controlled study• Study Participants: 51 women of reproductive age

with androgen deficiency due to hypopituitarism participated

• Intervention: Physiologic testosterone administration using a patch that delivers 300 µg daily or placebo was administered

Page 52: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone in Hypopituitarism

• Results: Mean free testosterone increased into the normal range during T administration.

• Mean hip (P = 0.023) and radius (P = 0.007), bone mineral density increased in the group receiving testosterone, compared with placebo,

• In testosterone treated group, fat-free mass (P = 0.040) and thigh muscle area (P = 0.038) increased, but there was no change in fat mass.

• Mood (P = 0.029) and sexual function (P = 0.044) improved, as did some aspects of quality of life, but not cognitive function.

• Testosterone at physiologic replacement levels was well tolerated, with few side effects.

Page 53: Pituitary Hormone Replacement What ’ s the Big Deal?

Demographic Characteristics of Women with Hypopituitarism (T < 20 ng/dL)

Name Age BMI Ethnicity Disorder Surgery Deficiencies GH statusPatientsA.P. 24 28.6 H Acromegaly Y Go, ADH high nlC.B. 41 30.5 H Acromegaly Y* Go nlC.O.W. 43 25.8 H Sheehan's N Go, GH, TSH on gh-now nlD.G. 29 34.9 H Non-secreting Macroadenoma Y Go, TSH, ADH not testedE.S. 28 34.6 H Craniopharygioma Y Go, GH, TSH, ACTH, ADH on gh-now nlJ.R. 38 34.6 C Acromegaly Y* Go,TSH, ACTH, ADH nlK.T. 48 22.8 C Cushings Y Go, GH, TSH, ACTH on gh-now nlM.R. 31 28.1 H Prolactinoma Y Go, GH, TSH, ACTH on gh-now nlM.V. 26 28.1 H Craniopharyn Y Go, GH, TSH, ACTH, ADH on gh-now nlM.Z. 44 21.1 H Sheehans N Go, TSH not testedN.S. 50 30.2 C Hypothalamic-Pituitary Dysfunction N Go, GH, TSH, ACTH on gh-now nlS.G. 37 24.0 H Non-secreting Macroadenoma Y Go, GH, ACTH not testedMean 36.6 28.6SD 8.8 3.6

12 patients completed most of the study

Page 54: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone ** P < 0.0001

Testosterone Levels in hypopituitary and Healthy Volunteers

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

testo

ste

ron

e l

evels

n

g/d

L

**

Healthy VolunteersHypopituitarism

Page 55: Pituitary Hormone Replacement What ’ s the Big Deal?

Cholesterol

Cholesterol

0

50

100

150

200

250

300

mg

/dL

* P < 0.005

*

Healthy VolunteersHypopituitarism

Page 56: Pituitary Hormone Replacement What ’ s the Big Deal?

LdL Cholesterol

LdL

0

50

100

150

200

250

mg

/dL

* P < 0.05

*

Healthy VolunteersHypopituitarism

Page 57: Pituitary Hormone Replacement What ’ s the Big Deal?

HdL Cholesterol

HdL

0

20

40

60

80

100

120

mg

/dL

P =NS

Healthy VolunteersHypopituitarism

Page 58: Pituitary Hormone Replacement What ’ s the Big Deal?

Triglycerides

Triglycerides

0

50

100

150

200

250

300m

g/d

L

* P < 0.05

*

Healthy VolunteersHypopituitarism

Page 59: Pituitary Hormone Replacement What ’ s the Big Deal?

400 m walk

400m Walk

0

50

100

150

200

250

300

Secon

ds

* P < 0.05

*

Healthy VolunteersHypopituitarism

Page 60: Pituitary Hormone Replacement What ’ s the Big Deal?

Chest press

Chest Press

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

kg

* P < 0.05

*

Healthy VolunteersHypopituitarism

Page 61: Pituitary Hormone Replacement What ’ s the Big Deal?

SCL-90R (GSI)

0.00

0.50

1.00

1.50

2.00

2.50

SCL - 90 (higher score worse)

**

** P < 0.0001

Healthy VolunteersHypopituitarism

Page 62: Pituitary Hormone Replacement What ’ s the Big Deal?

0

5

10

15

20

25

30

35

Healthy Patients Hypopituitarism

score

ran

ge 0

to 4

8

normal range: <15; abnormal range: 15+

p < 0.0001

*

Female Sexual Distress Scale

Page 63: Pituitary Hormone Replacement What ’ s the Big Deal?

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

Healthy Volunteers Hypopituitarism

Levels

of

Desir

e

P<0.0001

*

FSFI-Desire

Page 64: Pituitary Hormone Replacement What ’ s the Big Deal?

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Healthy Volunteers Hypopituitarism

Levels

of

Org

asm

P<0.0001

*

FSFI-Orgasm

Page 65: Pituitary Hormone Replacement What ’ s the Big Deal?

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Healthy Volunteers Hypopituitarism

Less P

ain

Exp

eri

en

ced

Du

rin

g V

ag

inal P

en

etr

ati

on

P<0.001

*

FSFI-Pain

Page 66: Pituitary Hormone Replacement What ’ s the Big Deal?

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

Healthy Volunteers Hypopituitarism

Level of

Lu

bri

cati

on

*

FSFI-Lubrication

P<0.001

*

Page 67: Pituitary Hormone Replacement What ’ s the Big Deal?

FSFI-Arousal

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

Levels

of

Aro

usal

P<0.001

*

Healthy Volunteers Hypopituitarism

Page 68: Pituitary Hormone Replacement What ’ s the Big Deal?

FSFI-Satisfaction

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5Levels

of

Sati

sfa

cti

on

P<0.0002

*

Healthy Volunteers Hypopituitarism

Page 69: Pituitary Hormone Replacement What ’ s the Big Deal?

Warm Sensation-Vagina

40

45

50

un

its

P<0.05

*

Healthy Volunteers Hypopituitarism

Page 70: Pituitary Hormone Replacement What ’ s the Big Deal?

Vibratory Threshold-Vagina

0

2

4

6

8

10

12

un

its

p < 0.05

*

Healthy Volunteers Hypopituitarism

Page 71: Pituitary Hormone Replacement What ’ s the Big Deal?

Objective Sexual Function (Blood-flow) -Labia-post-stimulation

Blood Flow Labia -Post

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

cm

/sec

Healthy Volunteers Hypopituitarism

Page 72: Pituitary Hormone Replacement What ’ s the Big Deal?

Objective Sexual Function (Blood-flow) -Clitoral-post-stimulation

Blood Flow Clitoris-Post

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0cm

/sec

Healthy Volunteers Hypopituitarism

Page 73: Pituitary Hormone Replacement What ’ s the Big Deal?

Differences in Pre-Post Clitoral Blood Flow

0

5

10

15

20

25

30

35

40

Healthy Volunteers Hypopituitarism

cm

/sec

P<0.05

*

Page 74: Pituitary Hormone Replacement What ’ s the Big Deal?

Conclusions Of Short-Term Studies

• Low free and total serum testosterone levels in patients

• Impaired chest press strength and 400 m walk

• High cholesterol, LdL and TG

• Very reduced psychological well-being

• Impaired vaginal, but not clitoral thresholds

• Slightly impaired genital blood flow

• Recruitment is ongoing

Page 75: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone Replacement Study at Drew University

• Funded as part of Reproductive Center Grant• Now recruiting patients• 80 women (ages 18 to 50 years) with

testosterone deficiency secondary to hypopituitarism – Will be randomized to receive either placebo or transdermal testosterone gel

• Leading to a targeted serum testosterone in the upper range of normal – Double-blind study of 6 months duration

• All patients will be on stable physiological replacement regimens for other hormones including– Growth hormone– Transdermal estrogen replacement

Page 76: Pituitary Hormone Replacement What ’ s the Big Deal?

Criteria for Subjects

• Women ages 18 to 55• Pituitary gland problems• Low serum testosterone level (can be tested at study site)• Written informed consent• No other significant medical conditions• Patients must discontinue their current testosterone or

DHEA replacement, if on either of these hormones

Page 77: Pituitary Hormone Replacement What ’ s the Big Deal?

Testosterone Replacement Study at Drew University

• Location– King/Drew Medical Center in Willowbrook– UCLA in West Los Angeles

• Patient Compensation– Up to $1500, plus pituitary hormone medications

provided by the study• Recruitment ongoing

– Call 323-563-9385 or – email [email protected]

Page 78: Pituitary Hormone Replacement What ’ s the Big Deal?

Study Perks For Patients

• Free growth hormone during all parts of the study

• Open label period – All patients would get testosterone gel for one year following randomization period

• Free hormonal testing including GH testing• Climara patch and Provera supplied without charge

Page 79: Pituitary Hormone Replacement What ’ s the Big Deal?

Conclusion• Sexual dysfunction in women matters!

• Psychological dysfunction in women matters!– We hope this study will address these problems

• We expect this study will – accurately assess the important benefits and deleterious effects of

physiological testosterone replacement in women with hypopituitarism

• At the conclusion of this study, we expect to – determine whether it is of benefit to add testosterone to the standard

hormonal replacement for women with hypopituitarism

Page 80: Pituitary Hormone Replacement What ’ s the Big Deal?

For More Information andTo Schedule An Appointment With Dr. Friedman

• www.goodhormonehealth.com• [email protected]• My book on thyroid diseases

– “ The Everything Health Guideto Thyroid Disease”

– Published by Adams Media – Just came out – Available at Amazon.com

Page 81: Pituitary Hormone Replacement What ’ s the Big Deal?

A BIG Thanks!

• To Magic Foundation for inviting me and doing great work!

• To Dianne Tambourine for hosting a great conference


Recommended