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. 2023 Jun 30;38(5):297–328. doi: 10.1097/YIC.0000000000000488

Table 4.

Ongoing, terminated, or completed clinical trials without results posted until September 2022

Mood disorder Drug Dose Phase Type of study NCT number Trial design Adjunctive treatment or monotherapy Depressive symptoms severity scale at baseline Population Drug effectiveness on depressive symptoms Status
N Range age
MDD REL-1017 25 mg III Multicenter randomized double-blind placebo-controlled trial NCT04688164 2 arms
REL-1017
Placebo
Adjunctive treatment NA 400 18–65 Reduction in depressive symptoms at day 28 in the MADRS
(Primary outcome)
No results posted
25 mg III Multicenter randomized double-blind placebo-controlled trial NCT04855747 2 arms
REL-1017
Placebo
Adjunctive treatment NA 400 18–65 Reduction in depressive symptoms at day 28 in the MADRS
(Primary outcome)
Recruiting
25 mg III Multicenter randomized double-blind placebo-controlled trial NCT05081167 2 arms
REL-1017
Placebo
Monotherapy NA 400 18–65 Reduction in depressive symptoms at day 28 in the MADRS
(Primary outcome)
No results posted
25 mg III Open-label trial NCT04855760 Single arm Adjunctive treatment NA 600 18–65 Incidence of TEAEs (Primary outcome) Recruiting
Psilocybin 25 mg II Randomized double-blind support-of-concept trial NCT03866174 2 arms
Psilocybin
Active placebo
Monotherapy (PAP) NA 100 21–65 Reduction in depressive symptoms at day 43 in the MADRS
(Primary outcome)
Not recruiting
0.215 mg/kg II Randomized double-blind placebo-controlled trial NCT03715127 2 arms
Psilocybin
Placebo
Monotherapy (PAP) MADRS ≥ 10/≤40 55 18–60 Reduction in depressive symptoms at day 32 in the MADRS and BDI
(Primary outcome)
No results posted
0.1 mg/kg
0.3 mg/kg
I Randomized double-blind placebo-controlled crossover trial NCT03554174 4 arms
Placebo-psilocybin 0.1
Placebo-psilocybin 0.3 Psilocybin 0.1-placebo Psilocybin 0.3-placebo
Monotherapy (PAP) NA 18 18–65 Reduction in depressive symptoms at weeks 1 and 2 after each experimental session in the GRID-HDRS Not recruiting
25 mg II Randomized double-blind placebo-controlled trial NCT03380442 3 arms
Psilocybin
Ketamine
No treatment group
Monotherapy (PAP) HDRS ≥ 17 60 18–64 Reduction in depressive symptoms at months 3 and 6 in the QIDS
(Primary outcome)
Unknown
25 mg II Randomized double-blind placebo-controlled trial NCT04620759 2 arms
Psilocybin
Placebo
Monotherapy (PAP) GRID-HDRS ≥ 18 90 21–65 Reduction in depressive symptoms at month 1 in the GRID-HDRS
(Primary outcome)
Recruiting
25 mg II Randomized double-blind placebo-controlled trial NCT04630964 2 arms
Psilocybin
Active placebo
Monotherapy (PAP) MADRS > 22/≤30 35 20–65 Reduction in depressive symptoms at day 8 in the MADRS
(Primary outcome)
Not recruiting
Pimavanserin 34 mg III Open-label trial NCT04000009 Single arm Monotherapy NA 235 >18 Number of participants with TEAEs
(Primary outcome)
Terminated for business reasons and not due to safety concerns
Zuranolone 30 mg III Randomized double-blind placebo-controlled trial NCT03771664 2 arms
Zuranolone
Placebo
Monotherapy HDRS ≥ 20 87 18–64 Improvement of sleep efficiency assessed by polysomnography on day 14
(Primary outcome)
Terminated (internal company decisions)
30 mg III Randomized double-blind placebo-controlled trial NCT04007367 2 arms
Zuranolone
Placebo
Monotherapy HDRS ≥ 20 52 18–65 Time to relapse of depressive symptoms
(Primary outcome)
Terminated (internal company decisions)
PRAX-114 10 mg
20 mg
40 mg
60 mg
II Randomized double-blind placebo-controlled dose-ranging trial NCT04969510 5 arms
PRAX-114 10
PRAX-114 20
PRAX-114 40
PRAX-114 60
Placebo
Monotherapy adjunctive treatment HDRS-17 ≥ 23 110 18–65 Reduction in depressive symptoms at day 15 in the HDRS-17
(Primary outcome)
No results posted
Seltorexant NA I Randomized double-blind placebo-controlled trial NCT04951609 2 arms
Seltorexant
Placebo
Adjunctive treatment NA 52 12–17 Reduction in depressive symptoms at week 6 in the MADRS Recruiting
NA I Multicenter randomized double-blind
Placebo and positive controlled four-way crossover
Trial
NCT04451187 4 arms
Seltorexant dose 1
Seltorexant dose 2
Placebo
Zoplicone
Adjunctive treatment MADRS ≥ 18 63 21–80 Driving performance as assessed in an on-road driving test
(Primary outcome)
Not recruiting
NA III Multicenter randomized double-blind placebo-controlled parallel-group trial NCT04532749 2 arms
Seltorexant
Placebo
Adjunctive treatment HDRS-17 ≥ 20 212 18–74 Reduction in depressive symptoms at day 43 in the MADRS
(Primary outcome)
Stopped as a result of the interim analysis -no results posted
NA III Multicenter randomized double-blind placebo-controlled parallel-group trial NCT04533529 2 arms
Seltorexant
Placebo
Adjunctive treatment HDRS-17 ≥ 20 550 18–74 Reduction in depressive symptoms at week 6 in the MADRS
(Primary outcome)
Recruiting
NA III Randomized double-blind parallel-group trial NCT04513912 2 arms
Seltorexant
quetiapine (extended-release)
Adjunctive treatment HDRS-17 ≥ 20 720 18–74 Treatment response at week 26 in the MADRS
(Primary outcome)
Recruiting
TRD AXS-05 45/105 mg II Randomized double-blind active placebo-controlled
Trial
NCT04971291 2 arms
AXS-05
Bupropion
Monotherapy NA 312 18–65 Reduction in depressive symptoms at week 6 in the MADRS
(Primary outcome)
Enrolling by invitation
Psilocybin 5 mg
25 mg
II Randomized double-blind active placebo-controlled parallel-group trial NCT04670081 3 arms
Psilocybin 5
Psilocybin 25
Placebo
Monotherapy (PAP) NA 144 25–65 Treatment response at week 6 in the HDRS
(Primary outcome)
Recruiting

For some studies, some data is not available (i.e. drug’s dose and depressive symptoms severity scale at baseline).

BDI, Beck Depression Inventory total score; GRID-HDRS, Grid-Hamilton Depression Rating Scale total score; HDRS, Hamilton Depression Rating Scale total score; MADRS, Montgomery-Asberg Depression Rating Scale total score; MDD, major depressive disorder; NA, not available; NMDAR, n-methyl-d-aspartate receptor; PAP, psilocybin assisted psychotherapy; QIDS, Quick Inventory of Depressive Symptomatology total score; TEAE, treatment-emergent adverse event; TRD, treatment-resistant depression.