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Activated PI3K-delta SyndromePhase 1/2NCT03383380

Rapamycin Treatment for Activated Phosphoinositide 3-Kinase δ Syndrome

A Phase 1/2 study testing Rapamycin in people with Activated PI3K-delta Syndrome and Immunodeficiency Primary, run by Children's Hospital of Fudan University at 2 sites in China.

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

The purpose of this proposed research is to evaluate the efficacy and safety of the rapamycin therapy in patients with activated phosphoinositide 3-kinase δ syndrome (APDS). Read more about this study

Who is it for?
Ages Up to 18 years
What is being tested?
Rapamycin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
2 sitesChina
Study dates
1 Dec 2017to 30 Nov 2023
Phase
Phase 1/2
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 Up to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patients with activated phosphoinositide 3-kinase δ syndrome
  • No more than 18 years old

Who cannot join

  • Patients with serious fungous infection
  • Patients with serious complications
  • Lack of parental consent

Trial locations and contacts

2 sites in 1 country.

China2 sites
  • Children's Hospital of Fudan University

    Shanghai, Shanghai Municipality, 201102

  • Children's Hospital of Fudan University

    Shanghai, Shanghai Municipality

Other trials in China

About this study

Official title: Efficacy and Safety of Rapamycin Therapy for Patients With Activated Phosphoinositide 3-Kinase δ Syndrome

The purpose of this proposed research is to evaluate the efficacy and safety of the rapamycin therapy in patients with activated phosphoinositide 3-kinase δ syndrome (APDS).

Read the detailed description

Activated phosphoinositide 3-kinase δ syndrome (APDS) is a recently described autosomal dominant primary immunodeficiency (PID), caused by the mutations in PIK3CD gene. The manifestations of APDS mainly include recurrent respiratory tract infections, persistent Epstein-Barr virus (EBV)/ cytomegalovirus (CMV)infections, lymphadenopathy, splenomegaly, CD4+T cells lymphopenia, and hyper-IgM syndrome. PIK3CD encodes p110δ, the catalytic subunit of phosphatidylinositol 3-kinase (PI3K) which mainly expresses in leukocytes, being critical for their proliferation, activation and survival. Gain-of-function (GOF) PIK3CD mutations lead to PI3Kδ hyperactivity, with the downstream mediators Akt and mammilian target of rapamycin (mTOR) hyperphosphorylated. Patient-derived lymphocytes had increased levels of phosphatidylinositol 3,4,5-trisphosphate and phosphorylated AKT protein. Hyperactivation of mTOR increases phosphorylation of kinases and increased glycolysis that results in enhanced proliferation and senescence of terminally differentiated CD8+ Tcell populations.

The optimal treatment for these APDS patients is not yet determined; however, there are many kinds of therapeutic approaches (anti-infection prophylaxis, immunoglobulin replacement, conventional immunosuppressants, PI3K/mTOR inhibitors and hematopoietic stem cell transplantation). The APDS patients frequently receive treatment with immunoglobulin replacement and antibiotics. Hematopoietic stem cell transplantation (HSCT) has been currently curative in APDS patients; however, longer-term follow-up to determine the degree of donor chimerism and efficacy is required. There are several subjects without a prompt suitable matched donor or for whom the critical disease conditions force to postpone HSCT.The mammalian/mechanistic target of inhibitor rapamycin was reported to improve circulating T-cell profiles. Individual patients in previous studies experienced a decrease in nonneoplastic lymphoproliferation while taking rapamycin.

The investigators in this study hope to evaluate the efficacy and safety of rapamycin in the treatment for carefully selected patients with APDS.

Being tested
Rapamycin
Keywords
Activated PI3K-delta Syndrome, Immunodeficiency Primary, Akt/mTOR pathway, Rapamycin Therapy, Hyperphosphorylation
Medical subject headings
Activated PI3K-delta Syndrome, Primary Immunodeficiency Diseases

What participants receive

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

  • RapamycinDrug

    Also called Sirolimus

    Gain-of-function (GOF) PIK3CD mutations lead to PI3Kδ hyperactivity, with the downstream mediators Akt and mTOR hyperphosphorylated. The mammalian/mechanistic target of rapamycin inhibitor rapamycin may be effective to control the progress of this disease.

Study groups in NCT03383380
Study groupRoleWhat they receive
RapamycinExperimentalTreatment for patients with activated phosphoinositide 3-kinase δ syndrome
Receives: Drug: Rapamycin

What is being measured

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

  1. Frequency of Recurrent Infections

    Frequency of recurrent infections of the patients as indicators of rapamycin efficacy.

    Measured: 5 years

  2. Hepatosplenomegaly

    Changes in hepatosplenomegaly with rapamycin treatment.

    Measured: 5 years

  3. Lymphocyte subset

    The changes of lymphocytes subset were evaluated by flow cytometry.

    Measured: 5 years

Secondary outcomes (1)
  1. Incidence of Adverse Events

    Unexpected toxic adverse events during and after using rapamycin

    Measured: 5 years

Timeline

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

  1. First posted26 Dec 2017
  2. Study start1 Dec 2017
  3. Primary completion30 Nov 2022
  4. Study completion30 Nov 2023

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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03383380
Sponsor's protocol ID
RTAPDS
Status last verified
Jul 2024
First submitted
12 Dec 2017
Last updated
9 Jul 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Coulter TI, Chandra A, Bacon CM, Babar J, Curtis J, Screaton N, Goodlad JR, Farmer G, Steele CL, Leahy TR, Doffinger R, Baxendale H, Bernatoniene J, Edgar JD, Longhurst HJ, Ehl S, Speckmann C, Grimbacher B, Sediva A, Milota T, Faust SN, Williams AP, Hayman G, Kucuk ZY, Hague R, French P, Brooker R, Forsyth P, Herriot R, Cancrini C, Palma P, Ariganello P, Conlon N, Feighery C, Gavin PJ, Jones A, Imai K, Ibrahim MA, Markelj G, Abinun M, Rieux-Laucat F, Latour S, Pellier I, Fischer A, Touzot F, Casanova JL, Durandy A, Burns SO, Savic S, Kumararatne DS, Moshous D, Kracker S, Vanhaesebroeck B, Okkenhaug K, Picard C, Nejentsev S, Condliffe AM, Cant AJ. Clinical spectrum and features of activated phosphoinositide 3-kinase delta syndrome: A large patient cohort study. J Allergy Clin Immunol. 2017 Feb;139(2):597-606.e4. doi: 10.1016/j.jaci.2016.06.021. Epub 2016 Jul 16.

    PubMed 27555459
  • Lucas CL, Kuehn HS, Zhao F, Niemela JE, Deenick EK, Palendira U, Avery DT, Moens L, Cannons JL, Biancalana M, Stoddard J, Ouyang W, Frucht DM, Rao VK, Atkinson TP, Agharahimi A, Hussey AA, Folio LR, Olivier KN, Fleisher TA, Pittaluga S, Holland SM, Cohen JI, Oliveira JB, Tangye SG, Schwartzberg PL, Lenardo MJ, Uzel G. Dominant-activating germline mutations in the gene encoding the PI(3)K catalytic subunit p110delta result in T cell senescence and human immunodeficiency. Nat Immunol. 2014 Jan;15(1):88-97. doi: 10.1038/ni.2771. Epub 2013 Oct 28.

    PubMed 24165795
  • Tsujita Y, Mitsui-Sekinaka K, Imai K, Yeh TW, Mitsuiki N, Asano T, Ohnishi H, Kato Z, Sekinaka Y, Zaha K, Kato T, Okano T, Takashima T, Kobayashi K, Kimura M, Kunitsu T, Maruo Y, Kanegane H, Takagi M, Yoshida K, Okuno Y, Muramatsu H, Shiraishi Y, Chiba K, Tanaka H, Miyano S, Kojima S, Ogawa S, Ohara O, Okada S, Kobayashi M, Morio T, Nonoyama S. Phosphatase and tensin homolog (PTEN) mutation can cause activated phosphatidylinositol 3-kinase delta syndrome-like immunodeficiency. J Allergy Clin Immunol. 2016 Dec;138(6):1672-1680.e10. doi: 10.1016/j.jaci.2016.03.055. Epub 2016 Jul 14.

    PubMed 27426521
  • Vignesh P, Rawat A, Singh S. An Update on the Use of Immunomodulators in Primary Immunodeficiencies. Clin Rev Allergy Immunol. 2017 Apr;52(2):287-303. doi: 10.1007/s12016-016-8591-2.

    PubMed 27873163
  • Angulo I, Vadas O, Garcon F, Banham-Hall E, Plagnol V, Leahy TR, Baxendale H, Coulter T, Curtis J, Wu C, Blake-Palmer K, Perisic O, Smyth D, Maes M, Fiddler C, Juss J, Cilliers D, Markelj G, Chandra A, Farmer G, Kielkowska A, Clark J, Kracker S, Debre M, Picard C, Pellier I, Jabado N, Morris JA, Barcenas-Morales G, Fischer A, Stephens L, Hawkins P, Barrett JC, Abinun M, Clatworthy M, Durandy A, Doffinger R, Chilvers ER, Cant AJ, Kumararatne D, Okkenhaug K, Williams RL, Condliffe A, Nejentsev S. Phosphoinositide 3-kinase delta gene mutation predisposes to respiratory infection and airway damage. Science. 2013 Nov 15;342(6160):866-71. doi: 10.1126/science.1243292. Epub 2013 Oct 17.

    PubMed 24136356
  • Walsh CM, Fruman DA. Too much of a good thing: immunodeficiency due to hyperactive PI3K signaling. J Clin Invest. 2014 Sep;124(9):3688-90. doi: 10.1172/JCI77198. Epub 2014 Aug 18.

    PubMed 25133419

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Rapamycin in people with Activated PI3K-delta Syndrome and Immunodeficiency Primary, run by Children's Hospital of Fudan University at 2 sites in China.

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 2 inclusion and 3 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 9 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Frequency of Recurrent Infections (time frame: 5 years). The study lists 3 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 NCT03383380, which also lists 6 linked publications.

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 9 Jul 2024.

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