Clinical trial • Phase III • Infectious Disease

FOSTEMSAVIR for HIV-1 infection | Multi-drug resistant HIV-1

Phase III trial of FOSTEMSAVIR for HIV-1 infection | Multi-drug resistant HIV-1.

Overview

Trial Therapeutic Area
Infectious Disease
Trial Disease
HIV-1 infection | Multi-drug resistant HIV-1
Trial Stage
Phase III
Drug Modality
Small molecule

Key dates

Initial CTIS Submission Date
14-06-2024
First CTIS Authorization Date
30-08-2024

Trial design

Randomised, open-label, blinded placebo (dose not specified) + current failing antiretroviral regimen (placebo used as comparator in randomized cohort); randomized arm comparator is placebo. there is also open-label fostemsavir 600 mg bid + optimized background therapy (obt) in later/unblinded phase.-controlled Phase III trial in Romania.

Randomised
Yes
Open Label
Yes
Comparator
Blinded placebo (dose not specified) + current failing antiretroviral regimen (placebo used as comparator in randomized cohort); randomized arm comparator is placebo. There is also open-label fostemsavir 600 mg BID + optimized background therapy (OBT) in later/unblinded phase.
Target Sample Size
22
Trial Duration For Participant
672

Eligibility

Recruits 22 Vulnerable population considerations: prisoners or subjects who are involuntarily incarcerated and those compulsorily detained are explicitly excluded. Informed consent must be signed and written by participants; re-enrolment requires re-consent. Study is for adults (ages 18 and older); no paediatric assent processes described. Women of childbearing potential have pregnancy testing and contraception requirements..

Pregnancy Exclusion
Women must not be breastfeeding
Vulnerable Population
Vulnerable population considerations: prisoners or subjects who are involuntarily incarcerated and those compulsorily detained are explicitly excluded. Informed consent must be signed and written by participants; re-enrolment requires re-consent. Study is for adults (ages 18 and older); no paediatric assent processes described. Women of childbearing potential have pregnancy testing and contraception requirements.

Inclusion criteria

  • {"criterion_text":"- 1) Signed and written informed consent\n- 2) Target population: -) Men and non-pregnant women with chronic HIV-1 infection -) Age 18 and older -) Subject Re-enrollment: This study permits the re-enrollment of a subject that has discontinued the study as a pre-treatment/screen failure (ie, subject has not been randomized / has not been treated). If re-enrolled, the subject must be re-consented. and all screening requirements repeated. Re-enrollment is at the discretion of the medical monitor in discussion with PI. -) Antiretroviral-experienced with documented historical or baseline resistance, intolerability, and/or contraindications to antiretrovirals in at least three classes -) Failing current antiretroviral regimen with a confirmed plasma HIV-1 RNA of more or equal to 400 c/mL (first value from Investigator within 6 months of screening visit, with the second value obtained from Screening labs). Subjects with a screening HIV-1 RNA <400 c/mL should be counted as screen failures; repeat testing is not permissible. -) Must have at least one fully-active and available agent in < or = 2 ARV classes, based on current and/or documented historical resistance testing, taking into account tolerability and other safety concerns \n- 3) Age and Reproductive Status -) Willingness to use approved highly effective methods of contraception to avoid pregnancy (men and women of child bearing potential only). -) Males and Females, ages 18 years of age or older (or minimum age as determined by local regulatory or as legal requirements dictate) -) Women of childbearing potential (WOCBP) must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of HCG) within 24 hours prior to the start of study drug. -) Women must not be breastfeeding -) WOCBP must agree to follow instructions for method(s) of contraception for the duration of treatment with the Attachment Inhibitor and for at least 60 hours after drug exposure. -) Males, whether azoospermic or not, who are sexually active with WOCBP must use condoms and agree to follow instructions for method(s) of contraception for the duration of treatment with the Attachment Inhibitor and for at least 60 hours after drug exposure. -) WOCBP who are continuously not heterosexually active are exempt from contraceptive requirements. However, they must still undergo pregnancy testing as described in protocol."}

Exclusion criteria

  • {"criterion_text":"- 1) Any other clinical condition (including but not limited to substance use) or prior therapy that, in the opinion of the Investigator, would make the subject unsuitable for the study \n- 2) Physical and Laboratory Test Findings -) Chronic untreated HBV (however, patients with chronic treated HBV are eligible) -) HIV-2 infection -) ALT or AST > 7 x ULN -) Alkaline Phosphatase > 5 x ULN -) Bilirubin of more or = 1.5 x ULN (unless subject has Gilbert's disease, and/or is currently on atazanavir, and has predominantly unconjugated hyperbilirubinemia) -) History of decompensated cirrhosis or active decompensated cirrhosis -) History of congestive heart failure or congenital prolonged QT syndrome -) Hemoglobin < 8.0 g/dL (Randomized Cohort); Hemoglobin < 6.0 g/dL (Non-Randomized Cohort) -) Platelets < 50,000 cells/mm3 (Randomized Cohort); Platelets <20,000 cells/mm3 (Non-Randomized Cohort); -) Confirmed QT value > 500 msec at Screening or Day 1 -) Confirmed QTcF value > 470 msec for women and > 450 msec for men at Screening or Day 1 -) Confirmed PR Interval > 260 msec (severe first degree AV block) at Screening or Day 1 -) Confirmed second or third degree heart block at Screening or Day 1 -) Current or anticipated treatment with any of the following medications: rifampin, Hypericum perforatum (St. John's wort), efavirenz, nevirapine, carbemazepine, phenobarbital, phenytoin, amiodarone disopyramide, dofetilide, ibutilide, procainamide, sotalol, and quinidine. Simvastatin and lovastatin should not be co-administered with boosted protease inhibitors. -) Participation in an experimental drug and/or HIV-1 vaccine trial(s) within the previous 30 days (Randomized Cohort only) \n- 3) Other Exclusion Criteria -) Prisoners or subjects who are involuntarily incarcerated -) Subjects who are compulsorily detained for treatment of either a psychiatric or physical (eg, infectious disease) illness"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The efficacy of fostemsavir, relative to placebo, is assessed using the mean change in log10 HIV-1 RNA from Day 1 at Day 8 as determined by ANCOVA in the randomized cohort.","definition_or_measurement_approach":"Mean change in log10 HIV-1 RNA from Day 1 to Day 8 in the randomized cohort, analysed using ANCOVA."}

Secondary endpoints

  • {"endpoint_text":"- Proportions of subjects in the randomized cohort with HIV-1 RNA decreases","definition_or_measurement_approach":"Proportions of subjects with specified decreases in HIV-1 RNA (secondary objectives specify decreases exceeding 0.5 log10 c/mL and 1 log10 c/mL at Day 8)."}
  • {"endpoint_text":"- Durability of response at Weeks 24, 48, and 96 of OBT.","definition_or_measurement_approach":"Proportion of subjects with plasma HIV-1 RNA < 40 c/mL at Week 24, Week 48, and Week 96 when given with optimized background therapy (OBT)."}
  • {"endpoint_text":"- Frequency of SAEs, AEs leading to discontinuation, and Grade 3-4 laboratory abnormalities during OBT.","definition_or_measurement_approach":"Safety monitored by frequency and incidence of serious adverse events, adverse events leading to discontinuation, and Grade 3-4 lab abnormalities during the OBT period."}
  • {"endpoint_text":"- Disease progression during OBT.","definition_or_measurement_approach":"Assessment of new AIDS-defining events (CDC Class C events) or death during OBT."}
  • {"endpoint_text":"- Drug resistance testing","definition_or_measurement_approach":"Assessment of emergence of antiretroviral drug resistance among subjects with protocol-defined virologic failure."}
  • {"endpoint_text":"- Changes in CD4+ T-cells counts and percentages, for Fostemsavir and placebo.","definition_or_measurement_approach":"Changes from Day 1 in absolute CD4+ T-cell counts and percentage of CD4+ T-cells at Day 8 (and through follow-up for OBT)."}
  • {"endpoint_text":"- Changes from baseline in HIV-1 RNA, CD4+ cell counts, and percentage of CD4+ T-cells, for Fostemsavir when given with OBT.","definition_or_measurement_approach":"Longitudinal changes from baseline in viral load and immune cell counts/percentages through Weeks 24, 48, and 96 while on Fostemsavir + OBT."}

Recruitment

Planned Sample Size
22
Recruitment Window Months
137
Consent Approach
Signed and written informed consent required from participants. Re-enrolment requires re-consent and repetition of screening requirements. Study enrols adults (18+); no paediatric assent described. Specific languages for consent documents are not stated in the record.

Geography

Total Number Of Sites
2
Total Number Of Participants
22

Romania

Earliest CTIS Part Ii Submission Date
07-08-2024
Latest Decision Or Authorization Date
30-08-2024
Processing Time Days
23
Number Of Sites
2
Number Of Participants
5

Sites

Site Name
Institutul National De Boli Infectioase Prof.Dr.Matei Bals
Department Name
Clinical department II - Adults Infectious Diseases
Contact Person Name
Liliana Preotescu
Contact Person Email
preolil17@yahoo.com
Site Name
Institutul National De Boli Infectioase Prof.Dr.Matei Bals
Department Name
Clinical department II - Adults Infectious Diseases
Contact Person Name
Anca Streinu-Cercel
Contact Person Email
anca_sc@yahoo.com

Sponsor

Primary sponsor

Full Name
Viiv Healthcare UK Limited
Organisation Type
Pharmaceutical company
Country Of Registered Address
United Kingdom

Contract research organisations

Name
PPD Development LP
Responsibilities
Multiple sponsor duties (codes: 1,12,13,14,3,5,6,7,8,9) per CTIS record; contact EUCTRInquiry.sm@ppd.com
Name
Parexel International Corp.
Responsibilities
Sponsor duty code 10; contact Abhishek.Mishra@parexel.com
Name
Labcorp
Responsibilities
Laboratory/testing responsibilities (sponsor duties code 4); contacts provided in record
Name
Icon Laboratory Services Inc.
Responsibilities
Analysis and reporting of sCD14 & d-dimer biomarker results

Third parties

  • {"country":"United States","full_name":"PPD Development LP","duties_or_roles":"Sponsor duties codes: 1,12,13,14,3,5,6,7,8,9","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Monogram Biosciences Inc.","duties_or_roles":"HIV resistance testing","organisation_type":"Pharmaceutical company"}
  • {"country":"Belgium","full_name":"Labcorp","duties_or_roles":"Sponsor duties code: 4","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Parexel International Corp.","duties_or_roles":"Sponsor duties code: 10","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Labcorp","duties_or_roles":"Sponsor duties code: 4","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Myriad RBM Inc.","duties_or_roles":"Analysis and reporting of SCD163 biomarker","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Icon Laboratory Services Inc.","duties_or_roles":"Analysis and reporting of sCD14 & d-dimer biomarker results","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Eresearchtechnology Inc.","duties_or_roles":"Provision of ECG equipment to each study site, cardiac monitoring services","organisation_type":"Pharmaceutical company"}

Investigational products

Investigational Product Name
Rukobia 600 mg prolonged-release tablets
Active Substance
FOSTEMSAVIR
Modality
Small molecule
Routes Of Administration
Oral
Route
Oral
Authorisation Status
Authorised (marketing authorisation EU/1/20/1518/001)
Starting Dose
600 mg twice daily (600 mg BID)
Dose Levels
600 mg BID
Frequency
BID (twice daily)
Maximum Dose
1200 mg per day
Combination Treatment
Yes

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