ClinicalTrials.gg
TerminatedNCT04870164Updated Mar 18, 2022

Safety, Tolerability and PK of Ensovibep (MP0420 - a New Candidate With Potential for Treatment of COVID-19)

A Phase 1 interventional study of Ensovibep and Placebo in COVID-19, sponsored by Molecular Partners AG. Terminated at 1 site in United Kingdom. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-03-18.

Sponsored by Molecular Partners AG · Phase 1, Interventional, and Other

Why this study was terminated
Due to hypersensitivity observed in 3 subjects, although no stopping rules were met, the Sponsor decided to halt recruitment for further investigation. After analysis of PK, i.m. administration was not required, and recruitment stopped.

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Nov 2020, registered Apr 2021).
Phase
Phase 1
Study type
Interventional
Enrollment
53
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 340 studies in COVID-19 with a site in United Kingdom — 17 open to participants now, 32 under way, 7 of them phase 3. COVID-19 · United Kingdom.

Enrollment
133rd of 172
53 · median 247
Started
2020
with 191 others
Phase 1
21 of 340
1 open now
Registered
232nd of 340
by date

Among the 340 studies in COVID-19 with a site in United Kingdom, this one is the 133rd largest by enrollment of the 172 interventional ones that give a count, is one of 192 that started in 2020, is one of 21 in phase 1, and was the 232nd registered.

COVID-19

7,990 studies on the registry are indexed under COVID-19; 466 are open to participants now.

Browse COVID-19 studies →

Open to participants now

17 of the 340 studies in COVID-19 with a site in United Kingdom are open now. Recruiting first, the newest first:

12 more — sign in →

All 17 open studies →

A study can be open while its sites in United Kingdom have not opened yet or have stopped. Only those recruiting at a site in United Kingdom →

Who these studies take

Of the 356 COVID-19 studies recruiting now, 207 (58%) set no upper age limit and 83 (23%) stop at 75 or younger; 91 take children under 18; 136 take healthy volunteers.

This study: 18 Years to 65 Years · all sexes · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 340 studies in COVID-19 with a site in United Kingdom, or all of them as a file.
02

Study summary

This study will investigate how ensovibep is distributed throughout the body, the safety and the tolerability of ensovibep in healthy volunteers

03

Conditions studied

  • COVID-19

Browse trials for

Keywords

  • ensovibep
  • COVID-19 treatment
  • SARS-CoV-2
  • Corona
  • designed ankyrin repeat protein (DARPin®)
  • angiotensin-converting enzyme 2 (ACE2)
04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy male or female subjects between ages of 18-65 years
  • of 18.0-35.0 kg/m2
  • Non-smokers for at least 3 months
  • Deemed healthy on the basis of a clinical history, physical examination, , vital signs, and laboratory tests of blood and urine
  • Agree to follow the requirements of the trial
  • Able to give fully informed written consent.

Exclusion criteria

Exclusion Criteria:

  • Positive tests for \& C,
  • Severe adverse reaction to any drug
  • Drug or alcohol abuse
  • Use of over-the-counter medication (with the exception of paracetamol [acetaminophen]) during the 7 days before the first dose of trial medication, or prescribed medication during the 28 days before first dose of trial medication
  • Any vaccination within 4 weeks before dose of trial medication
  • Participation in other clinical trials of unlicensed medicines within the previous 3 months
  • Loss of more than 400 mL blood within the previous 3 months
  • Vital signs outside the acceptable range
  • abnormal findings at the screening assessment
  • Acute or chronic illness
  • Clinically relevant abnormal medical history or concurrent medical condition
  • Possibility that volunteer will not cooperate
  • Females who are pregnant or lactating, or who are sexually active and not using a reliable method of .
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 1
Primary purpose
Other
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
53 participants (actual)

Study arms

  • Experimental
    ensovibep dose 1 (infusion)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 2 (infusion)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 3 (infusion)

    Drug: Ensovibep

  • Placebo comparator
    placebo (infusion)

    Drug: Placebo

  • Experimental
    ensovibep dose 4 (IV bolus)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 5 (IV bolus)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 6 (SC injection)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 7 (SC injection)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 8 (SC injection)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 9 (SC injection)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 10 (IM injection)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 11 (IM injection)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 12 (IM injection)

    Drug: Ensovibep

  • Experimental
    ensovibep dose 13 (IM injection)

    Drug: Ensovibep

Interventions

  • The study will start with a low-dose cohort and after a safety review escalate to the higher dose cohorts. 3 IV infusion, 2 IV bolus, 4 subcutaneous and 4 intramuscular cohorts are planned. Subjects receive one or two administration(s) on day 1, depending on the cohort.

    Also known as: MP0420, DARPin, COVID-19 treatment

  • DrugPlacebo

    One administration at day 1 by infusion.

06

What researchers measure

Primary outcomes

  1. Vital Signs: Blood Pressure Systolic and Diastolic (mmHg)

    Time frame: up to day 100 (EOS)

  2. Vital Signs: Heart Rate (bmp)

    Time frame: up to day 100 (EOS)

  3. Vital Signs: Tympanic Temperature (°C)

    Time frame: up to day 100 (EOS)

  4. Vital Signs: Oxygen Saturation (SpO2%)

    Time frame: up to day 100 (EOS)

  5. Cardiac Safety assessed by 12-lead Electrocardiogram (ECG)

    Time frame: up to day 100 (EOS)

  6. Physical Examination

    For safety purpose, the following will be examined during full physical examinations: general appearance; head, ears, eyes, nose and throat; thyroid; lymph nodes; back and neck; heart; chest; lungs; abdomen; skin; and extremities; and the following systems will be assessed: musculoskeletal and neurological.

    Time frame: up to day 100 (EOS)

  7. Number of subjects with Laboratory Abnormalities

    Time frame: up to day 100 (EOS)

  8. Assessment of local tolerability

    Number of subjects with reaction at the injection site. The injection site is assessed for any pain, tenderness, erythema and induration.

    Time frame: up to day 100 (EOS)

  9. Number of subjects with Adverse Events

    Time frame: up to day 100 (EOS)

Secondary outcomes

  1. Observed maximum concentration (Cmax)

    The maximum observed concentration (Cmax) is estimated based on the serum concentrations.

    Time frame: up to day 100 (EOS)

  2. Time to Cmax (Tmax)

    Time frame: up to day 100 (EOS)

  3. The area under the serum concentration-time curve (AUC)

    Time frame: up to day 100 (EOS)

  4. Apparent total body clearance of the drug from plasma (CL)

    Time frame: up to day 100 (EOS)

  5. The apparent volume of distribution during terminal phase after drug administration (Vz)

    Time frame: up to day 100 (EOS)

  6. Terminal Elimination Half-Life (T½)

    Time frame: up to day 100 (EOS)

  7. Proportion of subjects with treatment-emergent anti-drug antibodies (ADA)

    Time frame: up to day 100 (EOS)

07

Study locations

1 site
  • HMR
    London, NW10 7EW, United Kingdom
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2020 to primary completion in Jan 2022, 13 months.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 28, 2021
First posted
May 3, 2021
StartActual
Nov 18, 2020
Primary completionActual
Jan 6, 2022
CompletionActual
Jan 6, 2022
Last update
Mar 18, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 18, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04870164
Lead sponsor
Molecular Partners AG
Responsible party
Sponsor
First posted
May 3, 2021
Start date
Nov 18, 2020
Primary completion
Jan 6, 2022
Completion
Jan 6, 2022
Last update
Mar 18, 2022

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Mar 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Ensovibep

Start the discussion