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Autoimmune DiseasesPhase 2NCT05586737

Immunomodulatory Therapy in Women With Autoimmune Premature Ovarian Insufficiency

A Phase 2 study testing Rituximab in people with Autoimmune Diseases and Premature Ovarian Insufficiency, run by Angelica Lindén Hirschberg at 1 site in Sweden.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Title: Effects of immunomodulatory therapy on gonadal function in women with autoimmune premature ovarian insufficiency (POI) Trial objectives and purpose: To study if rituximab therapy can improve ovarian response to gonadotropin stimulation and menstrual function in women with autoimmune POI. Read more about this study

Who is it for?
Ages 18 to 35 years, women only
What is being tested?
Rituximab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
1 siteSweden
Study dates
29 Apr 2019to 15 Dec 2024
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 35 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Autoimmune premature ovarian insufficiency defined as presence of autoantibodies against 21-OH, SCC, 17-OH and/or NALP5 or other relevant autoantibodies
  • 18-35 yrs of age
  • Body mass index 19-30.
  • In fertile females, willingness to comply with effective contraceptive methods.
  • Ability to provide informed consent

Who cannot join

  • Documented hypersensitivity or intolerance to rituximab
  • Active, severe infection
  • Severe immunosuppression
  • Severe cardiac disease
  • Cancer
  • Benign tumours of the hypothalamus, pituitary, or ovary; ovarian enlargement or ovarian cyst
Show all 13Show fewer
  • Vaginal bleeding of unknown aetiology
  • Hormone replacement therapy (HRT) within four weeks prior study entry.
  • Pregnant or lactating women
  • Concurrent treatment with other immunosuppressive drugs
  • Vaccination within 4 weeks of infusion of study medication
  • Severe psychiatric disorder
  • Patient with any condition or any circumstance that in the opinion of the investigator would make it unsafe to undergo treatment with Rituximab.

Trial locations and contacts

1 site in 1 country.

Sweden1 site
  • Angelica Hirshberg

    Stockholm

Other trials in Sweden

About this study

Official title: Effects of Immunomodulatory Therapy on Gonadal Function in Women With Autoimmune Premature Ovarian Insufficiency

Title: Effects of immunomodulatory therapy on gonadal function in women with autoimmune premature ovarian insufficiency (POI)

Trial objectives and purpose: To study if rituximab therapy can improve ovarian response to gonadotropin stimulation and menstrual function in women with autoimmune POI.

Read more

Treatment: Controlled ovarian hyperstimulation before and four months after an infusion of 1-gram rituximab (Mabthera®) twice with two weeks interval. Follow-up period 12 months after infusion.

Primary outcome: Number of antral follicles and the size of the largest follicle in response to ovarian stimulation.

Secondary outcomes:

  1. Reestablishment of spontaneous menstrual bleedings during the 12 months' study period
  2. Ovulation during the 12 months' study period
  3. Change in B-cell count, autoantibody indices and immunoglobulin levels (IgG) after treatment

Safety outcomes: All adverse events. Of particular relevance are any hospital admissions, infections and allergic reactions.

Study population: Fifteen women with autoimmune POI defined as absence of menstruation > 6 months and elevated serum level of follicle stimulation hormone > 40 International units (IU)/L.

Inclusion criteria: Autoimmune POI defined as presence of autoantibodies against 21-hydroxylase (OH), side chain cleavage enzyme (SCC), 17-OH and/or neuronal apoptosis inhibitory protein (NACHT) leucine-rich-repeat protein 5 (NALP5) or other relevant autoantibodies; 18-35 yrs of age; body mass index 19-30.

Exclusion criteria: Hypersensitivity to rituximab; severe infection; severe immunosuppression; cardiac disease; cancer; benign tumours of the hypothalamus, pituitary, or ovary; ovarian enlargement or ovarian cyst; vaginal bleeding of unknown aetiology.

Time plan: The study is expected to start the spring 2017. It is expected to be closed spring 2023.

Being tested
Rituximab
Medical subject headings
Autoimmune Diseases, Primary Ovarian Insufficiency

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RituximabDrug

    1 gram rituximab twice with two weeks interval

Study groups in NCT05586737
Study groupRoleWhat they receive
rituximabExperimentalControlled ovarian hyperstimulation will be performed before and four months after two infusions of 1-gram rituximab (Mabthera®).
Receives: Drug: Rituximab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of antral follicles in response to ovarian stimulation 4 months after last rituximab infusion.

    Vaginal ultrasound measurement

    Measured: 4 months

  2. The largest follicle in response to ovarian stimulation 4 months after last rituximab infusion.

    Vaginal ultrasound measurement

    Measured: 4 months

Secondary outcomes (3)
  1. Spontaneous menstrual bleedings during the 12 months' study period

    Number of spontaneous menstrual bleedings

    Measured: 12 months

  2. Ovulation during the 12 months' study period

    Confirmed ovulation (y/n)

    Measured: 12 months

  3. Immunoglobulin levels

    Change in immunoglobulin levels (g/L) from baseline

    Measured: 4 and 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Oct 2022
  2. Study start29 Apr 2019
  3. Primary completion15 Dec 2024
  4. Study completion15 Dec 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05586737
Sponsor's protocol ID
KarolinskaUniversityHospital
Status last verified
Dec 2024
First submitted
9 Oct 2022
Last updated
18 Dec 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hirschberg AL, Bjornsdottir S, Gunnarsson I, Sergouniotis F, Wanggren K, Sousa Silva C, Vogt E, Oksnes M, Husebye ES, Bensing S, Kampe O. Immunotherapy for Fertility in Autoimmune Premature Ovarian Insufficiency. NEJM Evid. 2026 Jul;5(7):EVIDoa2500303. doi: 10.1056/EVIDoa2500303. Epub 2026 Jun 23.

    PubMed 42334299

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Rituximab in people with Autoimmune Diseases and Premature Ovarian Insufficiency, run by Angelica Lindén Hirschberg at 1 site in Sweden.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of antral follicles in response to ovarian stimulation 4 months after last rituximab infusion. (time frame: 4 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05586737, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Dec 2024; AzTrials last refreshed its copy on 8 Nov 2026.

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