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CompletedNCT07420894Updated Feb 19, 2026

Comparison of Combination of Itraconazole and Isotretinoin Versus Itraconazole Alone in the Treatment of Resistant Trichophyton Infection

An interventional study of Itraconazole + Isotretinoin and Itraconazole (ITZ) in Dermatophytosis, Trichophyton Infection and Resistant Dermatophyte Infection, sponsored by Multan Medical And Dental College. Completed at 1 site in Pakistan. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-02-19.

Sponsored by Multan Medical And Dental College · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year after the study started (first participant enrolled Jan 2025, registered Feb 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
148
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Dermatophytosis caused by Trichophyton species is a common superficial fungal infection of the skin, hair, and nails. Increasing reports of persistent or recurrent disease after standard antifungal therapy have raised concern for treatment resistance and incomplete clearance of fungal elements from keratinised tissues. Itraconazole is a widely used systemic antifungal for Trichophyton infection, however relapse after treatment can occur. Isotretinoin is an oral retinoid that reduces skin oil production and modifies keratinisation, and it may change the skin environment in a way that helps prevent persistence or recurrence of dermatophyte infection. This study will compare a combination regimen of oral itraconazole plus oral isotretinoin with oral itraconazole alone in adults with laboratory-confirmed Trichophyton infection.

This comparative clinical study will be conducted in the Dermatology Department of Multan Medical and Dental College and Ibn-E-Siena Hospital and Research Institute. Adults aged 18 to 65 years with clinical features suggestive of dermatophytosis will be screened, and only participants with confirmed Trichophyton infection on potassium hydroxide microscopy and or fungal culture will be enrolled. A total of 148 participants will be randomly allocated in equal numbers to one of two groups. One group will receive oral itraconazole plus low-dose oral isotretinoin for the study treatment period, and the other group will receive oral itraconazole alone at the same itraconazole dose and duration. Use of additional systemic antifungals or systemic retinoids during the treatment period will not be permitted.

The primary purpose is to determine whether adding isotretinoin to itraconazole improves treatment effectiveness and reduces recurrence. Outcomes will include clinical cure at the end of treatment, mycological cure based on negative potassium hydroxide microscopy at the end of treatment, time to symptom resolution, and relapse within the predefined follow-up period, assessed during scheduled follow-up visits. Safety will be monitored at each visit, including adverse drug reactions and laboratory testing as required. Liver function testing will be performed for all participants, lipid profile monitoring will be performed for participants receiving isotretinoin, and pregnancy testing and counselling on strict pregnancy avoidance will be provided for women of childbearing potential due to the known risk of fetal harm with isotretinoin.

02

Conditions studied

  • Dermatophytosis
  • Trichophyton Infection
  • Resistant Dermatophyte Infection

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Keywords

  • Itraconazole
  • Isotretinoin
  • Chronic recurrent dermatophytosis
  • Recalcitrant tinea infection
  • Trichophyton rubrum
03

In context

Tinea

39 studies on the registry are indexed under Tinea; 8 are open to participants now.

This study's enrollment of 148 is above the median of 64 across 33 interventional studies indexed under Tinea.

Browse Tinea studies →

Lead sponsor

Multan Medical And Dental College is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 18 to 65 years
  • Clinical features suggestive of dermatophytosis
  • Laboratory-confirmed Trichophyton infection at baseline
  • Provision of written
  • Ability and willingness to comply with treatment, follow-up visits, and required laboratory monitoring

Exclusion criteria

Exclusion Criteria:

  • Negative potassium hydroxide microscopy and no culture evidence of Trichophyton infection at baseline
  • Infection caused by non-Trichophyton dermatophytes on culture, or no growth on culture where culture is used for confirmation
  • Use of additional systemic antifungal therapy during the treatment period (not permitted by protocol)
  • Use of systemic retinoids other than study-assigned isotretinoin during the treatment period (not permitted by protocol)
  • Pregnancy at baseline in women of , or inability or unwillingness to follow strict pregnancy avoidance requirements during and after isotretinoin therapy
  • Any to itraconazole or isotretinoin, including known to either drug
  • baseline liver dysfunction or abnormal liver function tests considered unsafe for systemic itraconazole and or isotretinoin use
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
148 participants (actual)

Study arms

  • Experimental
    Group A (Itraconazole + Isotretinoin)

    Received oral itraconazole plus low dose oral isotretinoin for the predefined treatment duration, with no additional systemic antifungal or systemic retinoid permitted during the treatment period.

    Drug: Itraconazole + Isotretinoin

  • Active comparator
    Group B (Itraconazole Monotherapy)

    Received oral itraconazole alone for the predefined treatment duration, with no additional systemic antifungal or systemic retinoid permitted during the treatment period.

    Drug: Itraconazole (ITZ)

Interventions

  • DrugItraconazole + Isotretinoin

    Drug pages: Itraconazole · Isotretinoin

    Oral itraconazole administered at the protocol-specified dose (example: 200 mg/day in divided doses) for the protocol-specified duration (example: 4-6 weeks). Low dose oral isotretinoin administered at the protocol-specified dose (example: 10-20 mg/day or weight-based low dose) for the protocol-specified duration (example: 4-6 weeks).

  • Oral itraconazole administered at the protocol-specified dose (example: 200 mg/day in divided doses) for the protocol-specified duration (example: 4-6 weeks).

06

What researchers measure

Primary outcomes

  1. Clinical cure

    Proportion of participants with complete resolution of clinical signs and symptoms of dermatophytosis, defined as absence of active erythema, scaling, pruritus, and advancing lesion margin on clinical examination using a structured assessment proforma.

    Time frame: Up to 8 weeks

  2. Mycological cure

    Proportion of participants with negative potassium hydroxide microscopy from the previously involved site at the end of treatment. Where culture is performed at follow-up, mycological cure additionally requires negative fungal culture.

    Time frame: up to 8 weeks

Secondary outcomes

  1. Time to symptom resolution

    Number of days from initiation of treatment to complete disappearance of pruritus and cessation of lesion expansion, documented on follow-up assessment and or participant diary, and confirmed on clinical review.

    Time frame: Up to 8 weeks

  2. Relapse (recurrence) within follow-up

    Proportion of participants with reappearance of dermatophytosis lesions at the same or contiguous site after achievement of clinical cure, within the follow-up period, with potassium hydroxide positivity where feasible.

    Time frame: Up to 8 weeks

07

Study locations

1 site
  • Multan Medical and Dental College
    Multan, Punjab Province 60000, Pakistan
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2025 to primary completion in Jul 2025, 5 months.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 12, 2026
First posted
Feb 19, 2026
StartActual
Jan 29, 2025
Primary completionActual
Jul 28, 2025
CompletionActual
Jul 28, 2025
Last update
Feb 19, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 19, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07420894
Lead sponsor
Multan Medical And Dental College
Responsible party
Saba Amin (Principal Investigator, Multan Medical And Dental College) — Principal investigator
First posted
Feb 19, 2026
Start date
Jan 29, 2025
Primary completion
Jul 28, 2025
Completion
Jul 28, 2025
Last update
Feb 19, 2026

Study contacts

Saba Amin
principal investigator · Multan Medical And Dental College

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drugs tested here: Itraconazole · Isotretinoin

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