How should I evaluate and manage a patient with low dehydroepiandrosterone (DHEA) levels?

Evaluation and Management of Low DHEA

In women with primary adrenal insufficiency who have low DHEA levels and persistent symptoms of low libido, depression, or fatigue despite optimized glucocorticoid and mineralocorticoid replacement, consider a 6-month trial of DHEA replacement at 25-50 mg orally each morning. 1

Clinical Context and Diagnostic Significance

Low DHEA/DHEAS levels occur physiologically with aging ("adrenopause") but are pathologically low in adrenal insufficiency. The clinical significance depends entirely on the underlying condition:

When Low DHEA Indicates Adrenal Insufficiency

• DHEAS has excellent diagnostic performance for detecting adrenal insufficiency with an AUROC of 0.81, comparable to baseline cortisol 2
• Age- and sex-adjusted DHEAS ratio <1.12 (patient's DHEAS divided by lower limit of reference range) has 99% sensitivity and 92% specificity for subclinical hypercortisolism in adrenal incidentalomas 3
• Combined testing is most powerful: When baseline cortisol is 5-9.9 mcg/dL, only 1.3% have adrenal insufficiency if DHEAS ≥60 mcg/dL 2
• Very low values are highly specific: DHEAS <25 mcg/dL combined with baseline cortisol <5 mcg/dL identifies 72% of patients with true adrenal insufficiency 2

When Low DHEA May Not Require Treatment

The 2016 Endocrine Society guidelines explicitly state that systematic reviews and meta-analyses have not shown substantial clinical benefit to support routine DHEA use in women with adrenal insufficiency 1. This is a critical caveat—the evidence is mixed at best.

Treatment Algorithm

Step 1: Confirm Adrenal Insufficiency and Optimize Standard Replacement

Before considering DHEA:

• Ensure glucocorticoid replacement is optimized (hydrocortisone 15-25 mg/day in divided doses) 1
• Confirm mineralocorticoid replacement is adequate (fludrocortisone 50-100 mcg/day) 1
• Monitor clinically: body weight, postural blood pressure, energy levels, signs of glucocorticoid excess 1

Step 2: Identify Appropriate Candidates for DHEA Trial

Consider DHEA replacement ONLY in women with primary adrenal insufficiency who have: 1

• Low libido, OR
• Depressive symptoms, OR
• Low energy levels
• Despite optimized glucocorticoid and mineralocorticoid replacement

Key exclusions:

• Men (insufficient evidence for benefit)
• Women without specific symptoms listed above
• Patients with inadequately optimized standard replacement

Step 3: Initiate DHEA Replacement

Dosing: 1

• 25-50 mg orally as a single morning dose
• Start with 25 mg in most patients; increase to 50 mg if inadequate response

Monitoring: 1

• Measure morning serum DHEAS (before taking daily DHEA dose)
• Target: mid-normal range for premenopausal women
• Check at 1 month and 4 months

Step 4: Assess Response and Continue or Discontinue

At 6 months, make a definitive decision: 1

• If sustained beneficial effect on libido, mood, or energy: Continue DHEA
• If no sustained benefit: Discontinue DHEA—this is non-negotiable per guidelines

The evidence from clinical trials shows mixed results. While some studies demonstrated improvements in well-being, sexuality, and mood 4, 5, meta-analyses failed to confirm substantial clinical benefit 1. This underscores the importance of the 6-month trial-and-discontinue approach.

Important Caveats and Pitfalls

Common Pitfalls to Avoid

1. Do not use DHEA as routine replacement in all patients with adrenal insufficiency—it is a conditional trial only for symptomatic women 1

2. Do not continue DHEA indefinitely without reassessing benefit—the 6-month checkpoint is mandatory 1

3. Do not use DHEAS levels alone to diagnose adrenal insufficiency—always combine with baseline cortisol and clinical context 2

4. Recent glucocorticoid use decreases DHEAS diagnostic accuracy (AUROC drops from 0.83 to 0.72), so timing matters 2

5. DHEA is available over-the-counter in some countries, leading to unmonitored use—counsel patients about lack of evidence for routine supplementation 1

Monitoring for Adverse Effects

While monitoring DHEA replacement, watch for:

• Androgenic side effects: acne, hirsutism, voice deepening
• Metabolic changes: DHEA decreases sex hormone-binding globulin, total cholesterol, and HDL cholesterol 4
• Lack of long-term safety data: studies on chronic DHEA supplementation outcomes are lacking 1

Special Populations

Pregnancy: No specific recommendations exist for DHEA in pregnancy with adrenal insufficiency. Focus on optimizing hydrocortisone replacement 1

Children/Adolescents: DHEA replacement restores pubarche in adolescent adrenal insufficiency patients, but systematic guidelines are lacking 1

Men: Insufficient evidence to recommend DHEA replacement—guidelines specifically address women only 1