ANRS0640s LKV-PAN-01 (PANCOV)

25 février 2026

A phase I/IIa multicenter trial to evaluate the safety and immunogenicity of the CD40.Pan.CoV vaccine, adjuvanted or not, as a booster in adult participants.

Topic

COVID-19 vaccine in healthy volunteers


Sponsor

Inserm – ANRS MIE


Coordinating investigator

Jean-Daniel LELIEVRE MD, PhD – AP-HP


Short description

ANRS0640s LKV-PAN-01 (PANCOV) is a first-in-human phase I/IIa dose escalation trial of CD40.Pan.CoV vaccine adjuvanted with Poly-ICLC (Hiltonol®) or not, as a booster in adult volunteers. The objective of the trial is to evaluate the safety and the immunogenicity of different doses of a booster of a CD40.Pan.CoV vaccine.


Study design

Phase I/IIa, muliticenter, open-label, dose-escalating. 12 participants will be enrolled in each dose cohorts described below:

  • Cohort 1: One subcutaneous (SC) injection of low dose CD40.Pan.CoV vaccine non adjuvanted
  • Cohort 2: One SC injection of low dose CD40.Pan.CoV vaccine Hiltonol®-adjuvanted
  • Cohort 3: One SC injection of high dose CD40.Pan.CoV vaccine non adjuvanted
  • Cohort 4: One SC injection of high dose CD40.Pan.CoV vaccine Hiltonol®-adjuvanted

Primary objective

  • To determine the safety and reactogenicity of different doses (0,25 mg and 1 mg) of a booster of a CD40.Pan.CoV vaccine, adjuvanted or not, in healthy volunteers between D0 and M1.
  • To determine the humoral immune response (neutralizing antibody titers) induced by different doses (0,25 mg and 1 mg) of a booster of a CD40.Pan.CoV vaccine, adjuvanted or not, at M1 after administration.

Primary endpoint

  • Proportion of participants without any grade 3 or 4 solicited local/systemic or unsolicited AEs between D0 and M1 after the vaccine administration and considered to be related or possibly related to IMP administration.
  • Geometric mean titers of neutralizing antibodies against the original strain D614G and the relevant circulating variants measured at M1 after administration.

Study population

Healthy adult volunteers having received a primary series of vaccination and ≥ 1 booster(s) of COVID-19 mRNA vaccination(s) with the last boost at least 6 months prior to the IMP administration, age between 18 and 64 years


Intervention

Enrolment of a given cohort will open sequentially depending on the « go-criterion » based on the safety data of the previous cohort(s)


Number of subjects

48 healthy participants recruited into 4 dose cohorts


Participating country(ies) and sites

France, 7 sites


Study duration

16 months


Funding

VRI funding


UMS MART activities

Methodological aspects, trial coordination, monitoring, data management and statistical analysis


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