Regulation 31 Suspension or termination of clinical trial
United Kingdom
If, in relation to a clinical trial F1or part of a clinical trial—
the licensing authority have objective grounds for considering that—
any condition, restriction or limitation which applies to the conduct of the trial and is set out in the request for authorisation or the particulars or documents accompanying that request, or
is no longer satisfied (either generally or at a particular trial F4location);
the licensing authority have information raising doubts about the safety or scientific validity of the trial, or the conduct of the trial at a particular trial F5location; or
the trial has lapsed in accordance with regulation 26 and the sponsor has not notified the licensing authority that the trial has ended,
the licensing authority may, by a notice served in accordance with paragraph (2), require that the trial, or the conduct of the trial at a particular trial site, be suspended or terminated.
A notice in accordance with paragraph (1) shall be served—
in a case where the suspension or termination applies to the trial generally, on—
the sponsor, or
the investigator at each F7trial location;
in a case where the suspension or termination applies to the conduct of a trial at a particular trial location, on—
the sponsor, or
the investigator at that trial location.
The notice shall specify—
whether the notice applies to the trial generally or to one or more of the trial F8locations;
whether the notice requires suspension or termination of the trial F9in whole or in part, and, if it applies to part of the trial, to which part it applies;
if the notice requires suspension of the trial—
whether the suspension applies until further notice from the licensing authority or for such period as may be specified in the notice, and
any conditions which are to be satisfied before the trial or, as the case may be, the conduct of the trial at a particular F10location, may be recommenced; and
whether suspension or termination is to take effect immediately on receipt of the notice or on such date as may be specified in the notice.
If the licensing authority issues a notice under paragraph (1), they shall forthwith inform—
where the notice has not been served on the sponsor, the sponsor;
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
the relevant ethics committee;
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subject to paragraph (6), at least one week before issuing a notice under paragraph (1) the licensing authority shall, by a notice in writing to the sponsor or the investigator—
advise him that they may, within one week of the date of the notice, furnish the authority with written representations as to whether the trial, or the conduct of the trial at a particular location, should be so suspended or terminated.
Paragraph (5) shall not apply where it appears to the licensing authority that there is an imminent risk to the health or safety of any of the F16participants of the clinical trial.
A person on whom a notice has been served in accordance with paragraphs (1) and (2) may, within 28 days, or such extended period as the licensing authority may in any particular case allow, of the notice being given, give notice of his wish to make written or oral representations to the appropriate committee F17....
Schedule 5 shall have effect to regulate the procedure for reference to the appropriate committee F18... following receipt of a notice in accordance with paragraph (7).
Where the notice of suspension or termination is referred to an appropriate committee F19...it shall remain in force unless revoked in accordance with Schedule 5.
Annotations
Textual amendments
- F1
Words in reg. 31(1) inserted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(2)(a)
- F2
Words in reg. 31(1)(a)(ii) omitted (28.4.2026) by virtue of The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(2)(b)(i)
- F3
Words in reg. 31(1)(a)(ii) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(2)(b)(ii)
- F4
Word in reg. 31(1) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(2)(c)
- F5
Words in reg. 31(1)(b) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(2)(d)
- F6
Reg. 31(1)(c) inserted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(2)(e)
- F7
Words in reg. 31(2) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(3)
- F8
Word in reg. 31(3)(a) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(4)(a)
- F9
Words in reg. 31(3)(b) inserted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(4)(b)
- F10
Word in reg. 31(3)(c)(ii) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(4)(c)
- F11
Reg. 31(4)(b) omitted (31.12.2020) by virtue of The Medicines for Human Use (Clinical Trials) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/744), regs. 1, 12; 2020 c. 1, Sch. 5 para. 1(1)
- F12
Reg. 31(4)(d) omitted (31.12.2020) by virtue of The Medicines for Human Use (Clinical Trials) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/744), regs. 1, 12; 2020 c. 1, Sch. 5 para. 1(1)
- F13
Reg. 31(4)(e) omitted (31.12.2020) by virtue of The Medicines for Human Use (Clinical Trials) (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/744), regs. 1, 12; 2020 c. 1, Sch. 5 para. 1(1)
- F14
Words in reg. 31(5)(a) inserted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(5)(b)
- F15
Word in reg. 31(5) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(5)(a)
- F16
Word in reg. 31(6) substituted (28.4.2026) by The Medicines for Human Use (Clinical Trials) (Amendment) Regulations 2025 (S.I. 2025/538), regs. 1(2), 21(6)
- F17
Words in reg. 31(7) omitted (30.10.2005) by virtue of The Medicines (Advisory Bodies) (No. 2) Regulations 2005 (S.I. 2005/2754), reg. 1(2)(b), Sch. 3 para. 4(2)
- F18
Words in reg. 31(8) omitted (30.10.2005) by virtue of The Medicines (Advisory Bodies) (No. 2) Regulations 2005 (S.I. 2005/2754), reg. 1(2)(b), Sch. 3 para. 4(3)
- F19
Words in reg. 31(9) omitted (30.10.2005) by virtue of The Medicines (Advisory Bodies) (No. 2) Regulations 2005 (S.I. 2005/2754), reg. 1(2)(b), Sch. 3 para. 4(4)