Trial Outcomes & Findings for Safety and Acceptability of Q GRFT Nasal Spray for COVID-19 Prophylaxis (NCT NCT05180500)

NCT ID: NCT05180500

Last Updated: 2024-04-23

Results Overview

Number of participants with Grade 2 or higher adverse events deemed related to study product

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

50 participants

Primary outcome timeframe

Approximately 8 weeks

Results posted on

2024-04-23

Participant Flow

Participant milestones

Participant milestones
Measure
Q-GRFT Nasal Spray
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Overall Study
STARTED
33
17
Overall Study
COMPLETED
30
17
Overall Study
NOT COMPLETED
3
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Q-GRFT Nasal Spray
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Overall Study
Adverse Event
1
0
Overall Study
Withdrawal by Subject
2
0

Baseline Characteristics

Safety and Acceptability of Q GRFT Nasal Spray for COVID-19 Prophylaxis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Q-GRFT Nasal Spray
n=33 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Total
n=50 Participants
Total of all reporting groups
Age, Categorical
<=18 years
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Age, Categorical
Between 18 and 65 years
32 Participants
n=99 Participants
17 Participants
n=107 Participants
49 Participants
n=206 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Continuous
28.4 years
STANDARD_DEVIATION 7.7 • n=99 Participants
27.6 years
STANDARD_DEVIATION 6.3 • n=107 Participants
28.1 years
STANDARD_DEVIATION 7.2 • n=206 Participants
Sex/Gender, Customized
Female
23 Participants
n=99 Participants
11 Participants
n=107 Participants
34 Participants
n=206 Participants
Sex/Gender, Customized
Male
10 Participants
n=99 Participants
4 Participants
n=107 Participants
14 Participants
n=206 Participants
Sex/Gender, Customized
Nonbinary
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Sex/Gender, Customized
Transgender male to female
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Sex: Female, Male
Female
23 Participants
n=99 Participants
12 Participants
n=107 Participants
35 Participants
n=206 Participants
Sex: Female, Male
Male
10 Participants
n=99 Participants
5 Participants
n=107 Participants
15 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
32 Participants
n=99 Participants
17 Participants
n=107 Participants
49 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
5 Participants
n=99 Participants
2 Participants
n=107 Participants
7 Participants
n=206 Participants
Race (NIH/OMB)
White
21 Participants
n=99 Participants
12 Participants
n=107 Participants
33 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
5 Participants
n=99 Participants
1 Participants
n=107 Participants
6 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Region of Enrollment
United States
33 participants
n=99 Participants
17 participants
n=107 Participants
50 participants
n=206 Participants
COVID-19 Diagnosis
Yes
11 Participants
n=99 Participants
6 Participants
n=107 Participants
17 Participants
n=206 Participants
COVID-19 Diagnosis
No
22 Participants
n=99 Participants
11 Participants
n=107 Participants
33 Participants
n=206 Participants

PRIMARY outcome

Timeframe: Approximately 8 weeks

Population: All participants randomized to study product are included in this analysis.

Number of participants with Grade 2 or higher adverse events deemed related to study product

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=33 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Number of Participants With Related Grade 2 or Higher Adverse Events
Participants with related Grade 2 or higher
6 Participants
2 Participants
Number of Participants With Related Grade 2 or Higher Adverse Events
Participants without related Grade 2 or higher
27 Participants
15 Participants

SECONDARY outcome

Timeframe: Approximately 24 hours

Population: All participants on whom a nasopharyngeal swab was collected 24 hours after intranasal application of a single dose of study product.

Q-GRFT concentration from nasopharyngeal swab eluent collected 24 hours after intranasal application of a single dose of study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=31 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Q-GRFT Concentration From Nasopharyngeal Swab Eluent Collected at 24 Hours
1007 ng/mL
Interval to 1740.0
Q-GRFT levels in 12 of 31 (39%) nasopharyngeal samples were below the limit of quantitation for the assay which was 15 ng/mL
NA ng/mL
Q-GRFT levels in all nasopharyngeal samples were below the limit of quantitation for the assay which was 15 ng/mL

SECONDARY outcome

Timeframe: 24 hours after final dose of study product

Population: The 3 participants in the Q-GRFT arm that withdrew from the study were excluded.

Q-GRFT concentration in plasma collected 24 hours after the final intranasal application of 13 consecutive once daily administrations of study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=30 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Q-GRFT Plasma Concentration Collected at 24 Hours After 13 Consecutive Daily Intranasal Applications
NA ng/mL
Q-GRFT levels in all plasma samples were below the limit of quantitation for the assay which was 3ng/mL
NA ng/mL
Q-GRFT levels in all plasma samples were below the limit of quantitation for the assay which was 3ng/mL

SECONDARY outcome

Timeframe: Approximately 28 days

Population: The 3 participants in the Q-GRFT arm that withdrew from the study were excluded.

Area under the plasma concentration versus time curve of Q-GRFT collected after 13 consecutive daily intranasal applications of study product. Q-GRFT concentrations will be measured prior to the first application of study product and at 7-days, 14-days, and 28-days after the first of thirteen daily applications of study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=30 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Area Under the Plasma Concentration Versus Time Curve of Q-GRFT
NA ng x day/mL
Q-GRFT levels in all plasma samples at all time points were below the limit of quantitation for the assay which was 3ng/mL
NA ng x day/mL
Q-GRFT levels in all plasma samples at all time points were below the limit of quantitation for the assay which was 3ng/mL

SECONDARY outcome

Timeframe: Approximately 14 days

Population: The 3 participants in the Q-GRFT arm that withdrew from the study were excluded.

The acceptability of the nasal spray for use at home by the participant if it could protect against infection from coronavirus/COVID-19 will be assessed on a 5-point Likert scale, with 1 being completely unacceptable and 5 being highly acceptable. Acceptability will be assessed approximately 24 hours after the final application of 13 consecutive daily applications of the study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=30 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Acceptability of the Intranasal Spray
Acceptable (Highly or somewhat)
26 Participants
17 Participants
Acceptability of the Intranasal Spray
Unacceptable (Completely, somewhat, or neutral)
4 Participants
0 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Approximately 14 days

Population: The 3 participants in the Q-GRFT arm that withdrew from the study were excluded.

Mean change in Brief Smell Identification Test (BSIT) score between the score measured before the first application of study product and measured after 13 consecutive daily applications. The BSIT score is the number of odors that a participant correctly recognizes, ranging from 0 to 12. A negative value in the change score indicates a decrease in BSIT score from the pre-dose measurement, while a positive value indicates an increase in BSIT score.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=30 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Mean Change in Brief Smell Identification Test (BSIT) Score
-0.40 score on a scale
Standard Deviation 1.10
-0.24 score on a scale
Standard Deviation 0.83

OTHER_PRE_SPECIFIED outcome

Timeframe: Approximately 24 hours

Population: All participants on whom a nares swab was collected 24 hours after intranasal application of a single dose of study product.

Q-GRFT concentration from nares swab eluent collected 24 hours after intranasal application of a single dose of study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=31 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Q-GRFT Concentration From Nares Swab Eluent Collected at 24 Hours
1488 ng/mL
Interval to 6333.0
Q-GRFT levels in 12 of 31 (39%) nares samples were below the limit of quantitation for the assay which was 15 ng/mL
NA ng/mL
Q-GRFT levels in all nares samples were below the limit of quantitation for the assay which was 15 ng/mL

OTHER_PRE_SPECIFIED outcome

Timeframe: Approximately 14 days

Population: The 3 participants in the Q-GRFT arm that withdrew from the study were excluded.

Q-GRFT concentration from nasopharyngeal swab eluent collected 24 hours after the last dose of 13 consecutive daily intranasal applications of study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=30 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Q-GRFT Concentration From Nasopharyngeal Swab Eluent Collected at 24 Hours After 13 Consecutive Daily Intranasal Applications
974 ng/mL
Interval to 2096.0
Q-GRFT levels in 8 of 30 (27%) nasopharyngeal samples were below the limit of quantitation for the assay which was 15 ng/mL
NA ng/mL
Q-GRFT levels in all nasopharyngeal samples were below the limit of quantitation for the assay which was 15 ng/mL

OTHER_PRE_SPECIFIED outcome

Timeframe: Approximately 14 days

Population: The 3 participants in the Q-GRFT arm that withdrew from the study were excluded.

Q-GRFT concentration from nares swab eluent collected 24 hours after the last dose of 13 consecutive daily intranasal applications of study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=30 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Q-GRFT Concentration From Nares Swab Eluent Collected at 24 Hours After 13 Consecutive Daily Intranasal Applications
1586 ng/mL
Interval to 3214.0
Q-GRFT levels in 10 of 30 (33%) nares samples were below the limit of quantitation for the assay which was 15 ng/mL
NA ng/mL
Q-GRFT levels in all nares samples were below the limit of quantitation for the assay which was 15 ng/mL

OTHER_PRE_SPECIFIED outcome

Timeframe: Approximately 14 days

Population: Twenty out of 50 participants consented to provide a rectal swab sample.

Q-GRFT concentration from rectal swab eluent collected 24 hours after the last dose of 13 consecutive daily intranasal applications of study product.

Outcome measures

Outcome measures
Measure
Q-GRFT Nasal Spray
n=14 Participants
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=6 Participants
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Q-GRFT Concentration From Rectal Swab Eluent Collected at 24 Hours After 13 Consecutive Daily Intranasal Applications
106.7 ng/mL
Interval 18.3 to 510.2
3.4 ng/mL
Interval 3.0 to 3.8

Adverse Events

Q-GRFT Nasal Spray

Serious events: 0 serious events
Other events: 29 other events
Deaths: 0 deaths

Placebo Nasal Spray

Serious events: 0 serious events
Other events: 14 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Q-GRFT Nasal Spray
n=33 participants at risk
Q-Griffithsin (Q-GRFT) nasal spray (7.5mg/mL). Two metered doses of 100μL into each nostril, total of 3mg Q-GRFT per administration, administered once daily for 14 consecutive days. Q-Griffithsin: Q-Griffithsin is derived from Griffithsin (GRFT) which is a non-glycosylated protein consisting of 121 amino acids. Q-GRFT contains a single amino acid substitution, M78Q variant, resistant to oxidation yet maintains the parent molecule's pharmacological profile.
Placebo Nasal Spray
n=17 participants at risk
Placebo Nasal Spray. Two metered doses of 100μL into each nostril, administered once daily for 14 consecutive days. Placebo: A matched vehicle solution manufactured and dispensed in same applicators as the active comparator.
Respiratory, thoracic and mediastinal disorders
Nasal Congestion
66.7%
22/33 • Number of events 29 • Approximately 8 weeks.
35.3%
6/17 • Number of events 7 • Approximately 8 weeks.
Respiratory, thoracic and mediastinal disorders
Nasal Irritation
45.5%
15/33 • Number of events 18 • Approximately 8 weeks.
47.1%
8/17 • Number of events 8 • Approximately 8 weeks.
Respiratory, thoracic and mediastinal disorders
Throat Irritation
33.3%
11/33 • Number of events 12 • Approximately 8 weeks.
41.2%
7/17 • Number of events 7 • Approximately 8 weeks.
Respiratory, thoracic and mediastinal disorders
Increased Sneezing
39.4%
13/33 • Number of events 13 • Approximately 8 weeks.
0.00%
0/17 • Approximately 8 weeks.
Respiratory, thoracic and mediastinal disorders
Edematous Nasal Turbinates
21.2%
7/33 • Number of events 8 • Approximately 8 weeks.
11.8%
2/17 • Number of events 2 • Approximately 8 weeks.
Respiratory, thoracic and mediastinal disorders
Blood on Nasopharyngeal Swab
9.1%
3/33 • Number of events 3 • Approximately 8 weeks.
17.6%
3/17 • Number of events 3 • Approximately 8 weeks.

Additional Information

Dr. Sharon Hillier, PhD

University of Pittsburgh

Phone: 412-641-6435

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place