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
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!
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
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
Order of Hormone Deficiencies
• GH
• Gonadotropins (FSH, LH)
• TSH
• ACTH
• Prolactin
• Posterior pituitary hormones
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
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.
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
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?
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
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
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
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
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
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
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!
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
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
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
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
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
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
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
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
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
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?
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
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
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
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
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
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)
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
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
Oral Estrogen Replacement• In women with hypopituitarism, avoid it!
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
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
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
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
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!
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
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
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
Testosterone for Women
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
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
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
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.
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
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
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
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.
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
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
Cholesterol
Cholesterol
0
50
100
150
200
250
300
mg
/dL
* P < 0.005
*
Healthy VolunteersHypopituitarism
LdL Cholesterol
LdL
0
50
100
150
200
250
mg
/dL
* P < 0.05
*
Healthy VolunteersHypopituitarism
HdL Cholesterol
HdL
0
20
40
60
80
100
120
mg
/dL
P =NS
Healthy VolunteersHypopituitarism
Triglycerides
Triglycerides
0
50
100
150
200
250
300m
g/d
L
* P < 0.05
*
Healthy VolunteersHypopituitarism
400 m walk
400m Walk
0
50
100
150
200
250
300
Secon
ds
* P < 0.05
*
Healthy VolunteersHypopituitarism
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
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
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
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
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
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
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
*
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
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
Warm Sensation-Vagina
40
45
50
un
its
P<0.05
*
Healthy Volunteers Hypopituitarism
Vibratory Threshold-Vagina
0
2
4
6
8
10
12
un
its
p < 0.05
*
Healthy Volunteers Hypopituitarism
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
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
Differences in Pre-Post Clitoral Blood Flow
0
5
10
15
20
25
30
35
40
Healthy Volunteers Hypopituitarism
cm
/sec
P<0.05
*
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
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
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
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]
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
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
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
A BIG Thanks!
• To Magic Foundation for inviting me and doing great work!
• To Dianne Tambourine for hosting a great conference
Top Related