What do systematic reviews say?

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo

It is very uncertain whether summary of findings table ‐ Contact immunotherapy (diphencyprone or… changes short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with placebo (very low certainty).

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  RR 1.16 [0.79, 1.71]
  1 study · 99 participants
  Very low

Summary of findings table ‐ Oral classical immunosuppressants (prednisolone or cyclosporine) vs placebo

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 36 participants
  Very low

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs hair growth stimulants (minoxidil)

It is very uncertain whether summary of findings table ‐ Contact immunotherapy (diphencyprone or… changes short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with hair growth stimulants (minoxidil) (very low certainty).

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  RR 1.16 [0.79, 1.71]
  1 study · 99 participants
  Very low

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs hair growth stimulants (minoxidil)

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs hair growth stimulants (minoxidil)

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs hair growth stimulants (minoxidil)

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Contact immunotherapy (diphencyprone) + hair growth stimulants (minoxidil) vs contact immunotherapy (diphencyprone)

It is very uncertain whether summary of findings table ‐ Contact immunotherapy (diphencyprone) +… changes short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with contact immunotherapy (diphencyprone) (very low certainty).

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  RR 0.67 [0.13, 3.44]
  1 study · 30 participants
  Very low

Summary of findings table ‐ Contact immunotherapy (diphencyprone) + hair growth stimulants (minoxidil) vs contact immunotherapy (diphencyprone)

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 30 participants
  Very low

Summary of findings table ‐ Contact immunotherapy (diphencyprone) + hair growth stimulants (minoxidil) vs contact immunotherapy (diphencyprone)

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Oral classical immunosuppressants (prednisolone or cyclosporine) vs placebo

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Contact immunotherapy (diphencyprone) + hair growth stimulants (minoxidil) vs contact immunotherapy (diphencyprone)

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Minoxidil vs placebo

It is very uncertain whether summary of findings table ‐ Topical hair growth stimulants (minoxidil) changes short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with placebo (very low certainty).

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  RR 2.31 [1.34, 3.96]
  2 studies · 202 participants
  Very low

Minoxidil vs placebo

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 304 participants
  Very low

Minoxidil vs placebo

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Minoxidil vs placebo

The review found no eligible studies for this question.

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ Other therapies (cryotherapy) vs other therapies (fractional CO2 laser)

It is very uncertain whether summary of findings table ‐ Other therapies (cryotherapy) changes short‐term hair regrowth ≥ 75% compared with other therapies (fractional CO2 laser) (very low certainty).

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  RR 0.31 [0.11, 0.86]
  1 study · 80 participants
  Very low

Summary of findings table ‐ Other therapies (cryotherapy) vs other therapies (fractional CO2 laser)

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 80 participants
  Very low