Clinical trial NCT00490789: Trial of Efficacy and Safety of Sirolimus in Tuberous Sclerosis and LAM
Official title: A Trial of the Efficacy and Safety of Sirolimus(Rapamycin)Therapy for Renal Angiomyolipmoas in Patients With Tuberous Sclerosis Complex and Sporadic Lymphangioleiomyomatosis
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE2
Conditions: Tuberous Sclerosis
Lymphangioleiomyomatosis
Keywords: tuberous sclerosis
lymphangioleiomyomatosis
sirolimus
angiomyolioma
rapamycin
mTOR
Lead sponsor: Cardiff University
Sponsor class: OTHER
Collaborators: name: University of Nottingham
name: St Georges Hospital Medical School
name: Royal Sussex County Hospital
name: The Tuberous Sclerosis Association
name: Wyeth is now a wholly owned subsidiary of Pfizer
First posted: 2007-06-25
Enrollment: 14
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to determine the safety and efficacy of the mTOR inhibitor sirolimus as a treatment for renal angiomyolipomas in patients with tyberous sclerosis complex or sporadic lymphangioleiomyomatosis.

Detailed description: Inherited mutations of the TSC1 or TSC2 gene cause tuberous sclerosis while acquired (somatic) mutations of either gene are associated with sporadic lymphangioleiomyomatosis (LAM). Renal angiomyolipomas are a feature of both disorders. TSC1 and TSC2 regulate signalling through the mammalian target of rapamycin (mTOR) pathway. Inhibition of mTOR may result in a decrease in size of TSC 1/2 assciated lesions. We are treating patients with tuberous sclerosis or sporadic LAM with the mTOR inhibitor rapamycin in a non-randomised, open label pilot study of safety and efficacy. Change in size of renal angiomyolipomas is the primary end point

Eligibility criteria: Inclusion Criteria:

* If female, documentation of negative pregnancy test prior to enrolment.
* Participants, including males, must use an effective form of contraception, whilst taking sirolimus and for twelve weeks after stopping the drug
* One or more renal angiomyolipomata of at least two centimetres or greater in largest diameter
* Adequate renal function :glomerular filtration rate \> 40 ml/min
* Clinically definite diagnosis of tuberous sclerosis (modified Gomez criteria) or sporadic LAM (biopsy-proven or compatible high resolution chest CT scan and respiratory function tests.)
* Signed and dated informed consent

Exclusion Criteria:

* History of non-compliance or inability to give informed consent
* Significant haematological or hepatic abnormality (i.e. transaminase levels \> 150 i.u./L serum albumin \< 30 g/L, haematocrit\< 30%, platelets \< 100,000/ mm3, adjusted absolute neutrophil count \< 1,500/mm3, total WBC \< 3,000/ mm3)
* Greater than 1 g proteinuria daily
* Multiple bilateral AMLs, where individual lesions cannot be distinguished
* Renal haemorrhage within preceding year
* In those who have had a renal haemorrhage, known conservatively managed renal aneurysm(s) greater than 10mm
* Patients who have had embolisation for AML(s) within the preceding 6 months
* Patients who are unable to walk 100 metres on the flat
* Continuous requirement for supplemental oxygen
* Patients who have had or are being considered for organ transplant
* Uncontrolled hyperlipidaemia
* Intercurrent infection at initiation of Sirolimus
* Surgery within last 2 months
* Pregnant or lactating women
* Use of an investigational drug within the last 30 days
* Change in anti epileptic drug medication within the last 3 months
* Likely to need vaccination e.g. for travel during the course of the trial (except for influenza vaccine in patients with LAM)
* Current usage of strong inhibitors of CYP3AE ( such as ketoconazole, voriconazole, itraconazole, tilithromycin or clarithromycin) or strong inducers (such as rifampicin or rifabutin)

Primary outcomes:
measure: longest diameter of renal angiomyolipomas assessed by MRI scan, toxicity graded by National Cancer Institute's Common Terminology Criteria for Adverse Events v3.0
timeFrame: assessments at baseline and 2,6,12 and 24 months
measure: toxicity graded by National Cancer Institute's Common Terminology Criteria for Adverse Events
timeFrame: throughout study
Secondary outcomes:
measure: respiratory function tests (FEV1, FVC, DLCO), cognitive function (memory, executive skills)
timeFrame: 2 years
Other outcomes:
Locations:
city: Cardiff
country: United Kingdom
facility: University Hospital of Wales
state: Wales
city: Brighton
country: United Kingdom
facility: Royal Sussex County Hospital
city: Nottingham
country: United Kingdom
facility: City Hospital
Study officials:
affiliation: Cardiff Univeristy
name: Julian R Sampson, DM
role: PRINCIPAL_INVESTIGATOR
References:
citation: Davies DM, de Vries PJ, Johnson SR, McCartney DL, Cox JA, Serra AL, Watson PC, Howe CJ, Doyle T, Pointon K, Cross JJ, Tattersfield AE, Kingswood JC, Sampson JR. Sirolimus therapy for angiomyolipoma in tuberous sclerosis and sporadic lymphangioleiomyomatosis: a phase 2 trial. Clin Cancer Res. 2011 Jun 15;17(12):4071-81. doi: 10.1158/1078-0432.CCR-11-0445. Epub 2011 Apr 27.